TypeScript strictNullCheck loop analysis

bt_01.txt

#0 tsc.js:18416:17
#1 tsc.js:18363:36
#2 tsc.js:18391:28
#3 tsc.js:18356:36
#4 tsc.js:18421:25
#5 tsc.js:18363:36
#6 tsc.js:18391:28
#7 tsc.js:18356:36
#8 tsc.js:18421:25
#9 tsc.js:18363:36

bt_02.txt

#0 tsc.js:18575:17
#1 tsc.js:18392:32
#2 tsc.js:18356:36
#3 tsc.js:18421:25
#4 tsc.js:18363:36
#5 tsc.js:18391:28
#6 tsc.js:18356:36
#7 tsc.js:18421:25
#8 tsc.js:18363:36
#9 tsc.js:18391:28

bt_03.txt

#0 tsc.js:18346:24
#1 tsc.js:18421:25
#2 tsc.js:18363:36
#3 tsc.js:18391:28
#4 tsc.js:18356:36
#5 tsc.js:18421:25
#6 tsc.js:18363:36
#7 tsc.js:18391:28
#8 tsc.js:18356:36
#9 tsc.js:18421:25

bt_04.txt

#0 tsc.js:18391:17
#1 tsc.js:18356:36
#2 tsc.js:18421:25
#3 tsc.js:18363:36
#4 tsc.js:18391:28
#5 tsc.js:18356:36
#6 tsc.js:18421:25
#7 tsc.js:18363:36
#8 tsc.js:18391:28
#9 tsc.js:18356:36

bt_05.txt

#0 tsc.js:18461:17
#1 tsc.js:18447:36
#2 tsc.js:18585:32
#3 tsc.js:18392:32
#4 tsc.js:18356:36
#5 tsc.js:18421:25
#6 tsc.js:18363:36
#7 tsc.js:18391:28
#8 tsc.js:18356:36
#9 tsc.js:18421:25

tsc.js

/*! *****************************************************************************
Copyright (c) Microsoft Corporation. All rights reserved. 
Licensed under the Apache License, Version 2.0 (the "License"); you may not use
this file except in compliance with the License. You may obtain a copy of the
License at http://www.apache.org/licenses/LICENSE-2.0  
 
THIS CODE IS PROVIDED ON AN *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE, 
MERCHANTABLITY OR NON-INFRINGEMENT. 
 
See the Apache Version 2.0 License for specific language governing permissions
and limitations under the License.
***************************************************************************** */

var ts;
(function (ts) {
    var OperationCanceledException = (function () {
        function OperationCanceledException() {
        }
        return OperationCanceledException;
    }());
    ts.OperationCanceledException = OperationCanceledException;
    (function (ExitStatus) {
        ExitStatus[ExitStatus["Success"] = 0] = "Success";
        ExitStatus[ExitStatus["DiagnosticsPresent_OutputsSkipped"] = 1] = "DiagnosticsPresent_OutputsSkipped";
        ExitStatus[ExitStatus["DiagnosticsPresent_OutputsGenerated"] = 2] = "DiagnosticsPresent_OutputsGenerated";
    })(ts.ExitStatus || (ts.ExitStatus = {}));
    var ExitStatus = ts.ExitStatus;
    (function (TypeReferenceSerializationKind) {
        TypeReferenceSerializationKind[TypeReferenceSerializationKind["Unknown"] = 0] = "Unknown";
        TypeReferenceSerializationKind[TypeReferenceSerializationKind["TypeWithConstructSignatureAndValue"] = 1] = "TypeWithConstructSignatureAndValue";
        TypeReferenceSerializationKind[TypeReferenceSerializationKind["VoidType"] = 2] = "VoidType";
        TypeReferenceSerializationKind[TypeReferenceSerializationKind["NumberLikeType"] = 3] = "NumberLikeType";
        TypeReferenceSerializationKind[TypeReferenceSerializationKind["StringLikeType"] = 4] = "StringLikeType";
        TypeReferenceSerializationKind[TypeReferenceSerializationKind["BooleanType"] = 5] = "BooleanType";
        TypeReferenceSerializationKind[TypeReferenceSerializationKind["ArrayLikeType"] = 6] = "ArrayLikeType";
        TypeReferenceSerializationKind[TypeReferenceSerializationKind["ESSymbolType"] = 7] = "ESSymbolType";
        TypeReferenceSerializationKind[TypeReferenceSerializationKind["TypeWithCallSignature"] = 8] = "TypeWithCallSignature";
        TypeReferenceSerializationKind[TypeReferenceSerializationKind["ObjectType"] = 9] = "ObjectType";
    })(ts.TypeReferenceSerializationKind || (ts.TypeReferenceSerializationKind = {}));
    var TypeReferenceSerializationKind = ts.TypeReferenceSerializationKind;
    (function (DiagnosticCategory) {
        DiagnosticCategory[DiagnosticCategory["Warning"] = 0] = "Warning";
        DiagnosticCategory[DiagnosticCategory["Error"] = 1] = "Error";
        DiagnosticCategory[DiagnosticCategory["Message"] = 2] = "Message";
    })(ts.DiagnosticCategory || (ts.DiagnosticCategory = {}));
    var DiagnosticCategory = ts.DiagnosticCategory;
    (function (ModuleResolutionKind) {
        ModuleResolutionKind[ModuleResolutionKind["Classic"] = 1] = "Classic";
        ModuleResolutionKind[ModuleResolutionKind["NodeJs"] = 2] = "NodeJs";
    })(ts.ModuleResolutionKind || (ts.ModuleResolutionKind = {}));
    var ModuleResolutionKind = ts.ModuleResolutionKind;
    (function (ModuleKind) {
        ModuleKind[ModuleKind["None"] = 0] = "None";
        ModuleKind[ModuleKind["CommonJS"] = 1] = "CommonJS";
        ModuleKind[ModuleKind["AMD"] = 2] = "AMD";
        ModuleKind[ModuleKind["UMD"] = 3] = "UMD";
        ModuleKind[ModuleKind["System"] = 4] = "System";
        ModuleKind[ModuleKind["ES6"] = 5] = "ES6";
        ModuleKind[ModuleKind["ES2015"] = 5] = "ES2015";
    })(ts.ModuleKind || (ts.ModuleKind = {}));
    var ModuleKind = ts.ModuleKind;
})(ts || (ts = {}));
var ts;
(function (ts) {
    function createFileMap(keyMapper) {
        var files = {};
        return {
            get: get,
            set: set,
            contains: contains,
            remove: remove,
            forEachValue: forEachValueInMap,
            clear: clear
        };
        function forEachValueInMap(f) {
            for (var key in files) {
                f(key, files[key]);
            }
        }
        function get(path) {
            return files[toKey(path)];
        }
        function set(path, value) {
            files[toKey(path)] = value;
        }
        function contains(path) {
            return hasProperty(files, toKey(path));
        }
        function remove(path) {
            var key = toKey(path);
            delete files[key];
        }
        function clear() {
            files = {};
        }
        function toKey(path) {
            return keyMapper ? keyMapper(path) : path;
        }
    }
    ts.createFileMap = createFileMap;
    function toPath(fileName, basePath, getCanonicalFileName) {
        var nonCanonicalizedPath = isRootedDiskPath(fileName)
            ? normalizePath(fileName)
            : getNormalizedAbsolutePath(fileName, basePath);
        return getCanonicalFileName(nonCanonicalizedPath);
    }
    ts.toPath = toPath;
    function forEach(array, callback) {
        if (array) {
            for (var i = 0, len = array.length; i < len; i++) {
                var result = callback(array[i], i);
                if (result) {
                    return result;
                }
            }
        }
        return undefined;
    }
    ts.forEach = forEach;
    function contains(array, value, areEqual) {
        if (array) {
            for (var _i = 0, array_1 = array; _i < array_1.length; _i++) {
                var v = array_1[_i];
                if (areEqual ? areEqual(v, value) : v === value) {
                    return true;
                }
            }
        }
        return false;
    }
    ts.contains = contains;
    function indexOf(array, value) {
        if (array) {
            for (var i = 0, len = array.length; i < len; i++) {
                if (array[i] === value) {
                    return i;
                }
            }
        }
        return -1;
    }
    ts.indexOf = indexOf;
    function countWhere(array, predicate) {
        var count = 0;
        if (array) {
            for (var _i = 0, array_2 = array; _i < array_2.length; _i++) {
                var v = array_2[_i];
                if (predicate(v)) {
                    count++;
                }
            }
        }
        return count;
    }
    ts.countWhere = countWhere;
    function filter(array, f) {
        var result;
        if (array) {
            result = [];
            for (var _i = 0, array_3 = array; _i < array_3.length; _i++) {
                var item = array_3[_i];
                if (f(item)) {
                    result.push(item);
                }
            }
        }
        return result;
    }
    ts.filter = filter;
    function map(array, f) {
        var result;
        if (array) {
            result = [];
            for (var _i = 0, array_4 = array; _i < array_4.length; _i++) {
                var v = array_4[_i];
                result.push(f(v));
            }
        }
        return result;
    }
    ts.map = map;
    function concatenate(array1, array2) {
        if (!array2 || !array2.length)
            return array1;
        if (!array1 || !array1.length)
            return array2;
        return array1.concat(array2);
    }
    ts.concatenate = concatenate;
    function deduplicate(array, areEqual) {
        var result;
        if (array) {
            result = [];
            for (var _i = 0, array_5 = array; _i < array_5.length; _i++) {
                var item = array_5[_i];
                if (!contains(result, item, areEqual)) {
                    result.push(item);
                }
            }
        }
        return result;
    }
    ts.deduplicate = deduplicate;
    function sum(array, prop) {
        var result = 0;
        for (var _i = 0, array_6 = array; _i < array_6.length; _i++) {
            var v = array_6[_i];
            result += v[prop];
        }
        return result;
    }
    ts.sum = sum;
    function addRange(to, from) {
        if (to && from) {
            for (var _i = 0, from_1 = from; _i < from_1.length; _i++) {
                var v = from_1[_i];
                to.push(v);
            }
        }
    }
    ts.addRange = addRange;
    function rangeEquals(array1, array2, pos, end) {
        while (pos < end) {
            if (array1[pos] !== array2[pos]) {
                return false;
            }
            pos++;
        }
        return true;
    }
    ts.rangeEquals = rangeEquals;
    function lastOrUndefined(array) {
        if (array.length === 0) {
            return undefined;
        }
        return array[array.length - 1];
    }
    ts.lastOrUndefined = lastOrUndefined;
    function binarySearch(array, value) {
        var low = 0;
        var high = array.length - 1;
        while (low <= high) {
            var middle = low + ((high - low) >> 1);
            var midValue = array[middle];
            if (midValue === value) {
                return middle;
            }
            else if (midValue > value) {
                high = middle - 1;
            }
            else {
                low = middle + 1;
            }
        }
        return ~low;
    }
    ts.binarySearch = binarySearch;
    function reduceLeft(array, f, initial) {
        if (array) {
            var count = array.length;
            if (count > 0) {
                var pos = 0;
                var result = void 0;
                if (arguments.length <= 2) {
                    result = array[pos];
                    pos++;
                }
                else {
                    result = initial;
                }
                while (pos < count) {
                    result = f(result, array[pos]);
                    pos++;
                }
                return result;
            }
        }
        return initial;
    }
    ts.reduceLeft = reduceLeft;
    function reduceRight(array, f, initial) {
        if (array) {
            var pos = array.length - 1;
            if (pos >= 0) {
                var result = void 0;
                if (arguments.length <= 2) {
                    result = array[pos];
                    pos--;
                }
                else {
                    result = initial;
                }
                while (pos >= 0) {
                    result = f(result, array[pos]);
                    pos--;
                }
                return result;
            }
        }
        return initial;
    }
    ts.reduceRight = reduceRight;
    var hasOwnProperty = Object.prototype.hasOwnProperty;
    function hasProperty(map, key) {
        return hasOwnProperty.call(map, key);
    }
    ts.hasProperty = hasProperty;
    function getKeys(map) {
        var keys = [];
        for (var key in map) {
            keys.push(key);
        }
        return keys;
    }
    ts.getKeys = getKeys;
    function getProperty(map, key) {
        return hasOwnProperty.call(map, key) ? map[key] : undefined;
    }
    ts.getProperty = getProperty;
    function isEmpty(map) {
        for (var id in map) {
            if (hasProperty(map, id)) {
                return false;
            }
        }
        return true;
    }
    ts.isEmpty = isEmpty;
    function clone(object) {
        var result = {};
        for (var id in object) {
            result[id] = object[id];
        }
        return result;
    }
    ts.clone = clone;
    function extend(first, second) {
        var result = {};
        for (var id in first) {
            result[id] = first[id];
        }
        for (var id in second) {
            if (!hasProperty(result, id)) {
                result[id] = second[id];
            }
        }
        return result;
    }
    ts.extend = extend;
    function forEachValue(map, callback) {
        var result;
        for (var id in map) {
            if (result = callback(map[id]))
                break;
        }
        return result;
    }
    ts.forEachValue = forEachValue;
    function forEachKey(map, callback) {
        var result;
        for (var id in map) {
            if (result = callback(id))
                break;
        }
        return result;
    }
    ts.forEachKey = forEachKey;
    function lookUp(map, key) {
        return hasProperty(map, key) ? map[key] : undefined;
    }
    ts.lookUp = lookUp;
    function copyMap(source, target) {
        for (var p in source) {
            target[p] = source[p];
        }
    }
    ts.copyMap = copyMap;
    function arrayToMap(array, makeKey) {
        var result = {};
        forEach(array, function (value) {
            result[makeKey(value)] = value;
        });
        return result;
    }
    ts.arrayToMap = arrayToMap;
    function reduceProperties(map, callback, initial) {
        var result = initial;
        if (map) {
            for (var key in map) {
                if (hasProperty(map, key)) {
                    result = callback(result, map[key], String(key));
                }
            }
        }
        return result;
    }
    ts.reduceProperties = reduceProperties;
    function isArray(value) {
        return Array.isArray ? Array.isArray(value) : value instanceof Array;
    }
    ts.isArray = isArray;
    function memoize(callback) {
        var value;
        return function () {
            if (callback) {
                value = callback();
                callback = undefined;
            }
            return value;
        };
    }
    ts.memoize = memoize;
    function formatStringFromArgs(text, args, baseIndex) {
        baseIndex = baseIndex || 0;
        return text.replace(/{(\d+)}/g, function (match, index) { return args[+index + baseIndex]; });
    }
    ts.localizedDiagnosticMessages = undefined;
    function getLocaleSpecificMessage(message) {
        return ts.localizedDiagnosticMessages && ts.localizedDiagnosticMessages[message.key]
            ? ts.localizedDiagnosticMessages[message.key]
            : message.message;
    }
    ts.getLocaleSpecificMessage = getLocaleSpecificMessage;
    function createFileDiagnostic(file, start, length, message) {
        var end = start + length;
        Debug.assert(start >= 0, "start must be non-negative, is " + start);
        Debug.assert(length >= 0, "length must be non-negative, is " + length);
        if (file) {
            Debug.assert(start <= file.text.length, "start must be within the bounds of the file. " + start + " > " + file.text.length);
            Debug.assert(end <= file.text.length, "end must be the bounds of the file. " + end + " > " + file.text.length);
        }
        var text = getLocaleSpecificMessage(message);
        if (arguments.length > 4) {
            text = formatStringFromArgs(text, arguments, 4);
        }
        return {
            file: file,
            start: start,
            length: length,
            messageText: text,
            category: message.category,
            code: message.code
        };
    }
    ts.createFileDiagnostic = createFileDiagnostic;
    function formatMessage(dummy, message) {
        var text = getLocaleSpecificMessage(message);
        if (arguments.length > 2) {
            text = formatStringFromArgs(text, arguments, 2);
        }
        return text;
    }
    ts.formatMessage = formatMessage;
    function createCompilerDiagnostic(message) {
        var text = getLocaleSpecificMessage(message);
        if (arguments.length > 1) {
            text = formatStringFromArgs(text, arguments, 1);
        }
        return {
            file: undefined,
            start: undefined,
            length: undefined,
            messageText: text,
            category: message.category,
            code: message.code
        };
    }
    ts.createCompilerDiagnostic = createCompilerDiagnostic;
    function chainDiagnosticMessages(details, message) {
        var text = getLocaleSpecificMessage(message);
        if (arguments.length > 2) {
            text = formatStringFromArgs(text, arguments, 2);
        }
        return {
            messageText: text,
            category: message.category,
            code: message.code,
            next: details
        };
    }
    ts.chainDiagnosticMessages = chainDiagnosticMessages;
    function concatenateDiagnosticMessageChains(headChain, tailChain) {
        var lastChain = headChain;
        while (lastChain.next) {
            lastChain = lastChain.next;
        }
        lastChain.next = tailChain;
        return headChain;
    }
    ts.concatenateDiagnosticMessageChains = concatenateDiagnosticMessageChains;
    function compareValues(a, b) {
        if (a === b)
            return 0;
        if (a === undefined)
            return -1;
        if (b === undefined)
            return 1;
        return a < b ? -1 : 1;
    }
    ts.compareValues = compareValues;
    function getDiagnosticFileName(diagnostic) {
        return diagnostic.file ? diagnostic.file.fileName : undefined;
    }
    function compareDiagnostics(d1, d2) {
        return compareValues(getDiagnosticFileName(d1), getDiagnosticFileName(d2)) ||
            compareValues(d1.start, d2.start) ||
            compareValues(d1.length, d2.length) ||
            compareValues(d1.code, d2.code) ||
            compareMessageText(d1.messageText, d2.messageText) ||
            0;
    }
    ts.compareDiagnostics = compareDiagnostics;
    function compareMessageText(text1, text2) {
        while (text1 && text2) {
            var string1 = typeof text1 === "string" ? text1 : text1.messageText;
            var string2 = typeof text2 === "string" ? text2 : text2.messageText;
            var res = compareValues(string1, string2);
            if (res) {
                return res;
            }
            text1 = typeof text1 === "string" ? undefined : text1.next;
            text2 = typeof text2 === "string" ? undefined : text2.next;
        }
        if (!text1 && !text2) {
            return 0;
        }
        return text1 ? 1 : -1;
    }
    function sortAndDeduplicateDiagnostics(diagnostics) {
        return deduplicateSortedDiagnostics(diagnostics.sort(compareDiagnostics));
    }
    ts.sortAndDeduplicateDiagnostics = sortAndDeduplicateDiagnostics;
    function deduplicateSortedDiagnostics(diagnostics) {
        if (diagnostics.length < 2) {
            return diagnostics;
        }
        var newDiagnostics = [diagnostics[0]];
        var previousDiagnostic = diagnostics[0];
        for (var i = 1; i < diagnostics.length; i++) {
            var currentDiagnostic = diagnostics[i];
            var isDupe = compareDiagnostics(currentDiagnostic, previousDiagnostic) === 0;
            if (!isDupe) {
                newDiagnostics.push(currentDiagnostic);
                previousDiagnostic = currentDiagnostic;
            }
        }
        return newDiagnostics;
    }
    ts.deduplicateSortedDiagnostics = deduplicateSortedDiagnostics;
    function normalizeSlashes(path) {
        return path.replace(/\\/g, "/");
    }
    ts.normalizeSlashes = normalizeSlashes;
    function getRootLength(path) {
        if (path.charCodeAt(0) === 47) {
            if (path.charCodeAt(1) !== 47)
                return 1;
            var p1 = path.indexOf("/", 2);
            if (p1 < 0)
                return 2;
            var p2 = path.indexOf("/", p1 + 1);
            if (p2 < 0)
                return p1 + 1;
            return p2 + 1;
        }
        if (path.charCodeAt(1) === 58) {
            if (path.charCodeAt(2) === 47)
                return 3;
            return 2;
        }
        if (path.lastIndexOf("file:///", 0) === 0) {
            return "file:///".length;
        }
        var idx = path.indexOf("://");
        if (idx !== -1) {
            return idx + "://".length;
        }
        return 0;
    }
    ts.getRootLength = getRootLength;
    ts.directorySeparator = "/";
    function getNormalizedParts(normalizedSlashedPath, rootLength) {
        var parts = normalizedSlashedPath.substr(rootLength).split(ts.directorySeparator);
        var normalized = [];
        for (var _i = 0, parts_1 = parts; _i < parts_1.length; _i++) {
            var part = parts_1[_i];
            if (part !== ".") {
                if (part === ".." && normalized.length > 0 && lastOrUndefined(normalized) !== "..") {
                    normalized.pop();
                }
                else {
                    if (part) {
                        normalized.push(part);
                    }
                }
            }
        }
        return normalized;
    }
    function normalizePath(path) {
        path = normalizeSlashes(path);
        var rootLength = getRootLength(path);
        var normalized = getNormalizedParts(path, rootLength);
        return path.substr(0, rootLength) + normalized.join(ts.directorySeparator);
    }
    ts.normalizePath = normalizePath;
    function getDirectoryPath(path) {
        return path.substr(0, Math.max(getRootLength(path), path.lastIndexOf(ts.directorySeparator)));
    }
    ts.getDirectoryPath = getDirectoryPath;
    function isUrl(path) {
        return path && !isRootedDiskPath(path) && path.indexOf("://") !== -1;
    }
    ts.isUrl = isUrl;
    function isRootedDiskPath(path) {
        return getRootLength(path) !== 0;
    }
    ts.isRootedDiskPath = isRootedDiskPath;
    function normalizedPathComponents(path, rootLength) {
        var normalizedParts = getNormalizedParts(path, rootLength);
        return [path.substr(0, rootLength)].concat(normalizedParts);
    }
    function getNormalizedPathComponents(path, currentDirectory) {
        path = normalizeSlashes(path);
        var rootLength = getRootLength(path);
        if (rootLength === 0) {
            path = combinePaths(normalizeSlashes(currentDirectory), path);
            rootLength = getRootLength(path);
        }
        return normalizedPathComponents(path, rootLength);
    }
    ts.getNormalizedPathComponents = getNormalizedPathComponents;
    function getNormalizedAbsolutePath(fileName, currentDirectory) {
        return getNormalizedPathFromPathComponents(getNormalizedPathComponents(fileName, currentDirectory));
    }
    ts.getNormalizedAbsolutePath = getNormalizedAbsolutePath;
    function getNormalizedPathFromPathComponents(pathComponents) {
        if (pathComponents && pathComponents.length) {
            return pathComponents[0] + pathComponents.slice(1).join(ts.directorySeparator);
        }
    }
    ts.getNormalizedPathFromPathComponents = getNormalizedPathFromPathComponents;
    function getNormalizedPathComponentsOfUrl(url) {
        var urlLength = url.length;
        var rootLength = url.indexOf("://") + "://".length;
        while (rootLength < urlLength) {
            if (url.charCodeAt(rootLength) === 47) {
                rootLength++;
            }
            else {
                break;
            }
        }
        if (rootLength === urlLength) {
            return [url];
        }
        var indexOfNextSlash = url.indexOf(ts.directorySeparator, rootLength);
        if (indexOfNextSlash !== -1) {
            rootLength = indexOfNextSlash + 1;
            return normalizedPathComponents(url, rootLength);
        }
        else {
            return [url + ts.directorySeparator];
        }
    }
    function getNormalizedPathOrUrlComponents(pathOrUrl, currentDirectory) {
        if (isUrl(pathOrUrl)) {
            return getNormalizedPathComponentsOfUrl(pathOrUrl);
        }
        else {
            return getNormalizedPathComponents(pathOrUrl, currentDirectory);
        }
    }
    function getRelativePathToDirectoryOrUrl(directoryPathOrUrl, relativeOrAbsolutePath, currentDirectory, getCanonicalFileName, isAbsolutePathAnUrl) {
        var pathComponents = getNormalizedPathOrUrlComponents(relativeOrAbsolutePath, currentDirectory);
        var directoryComponents = getNormalizedPathOrUrlComponents(directoryPathOrUrl, currentDirectory);
        if (directoryComponents.length > 1 && lastOrUndefined(directoryComponents) === "") {
            directoryComponents.length--;
        }
        var joinStartIndex;
        for (joinStartIndex = 0; joinStartIndex < pathComponents.length && joinStartIndex < directoryComponents.length; joinStartIndex++) {
            if (getCanonicalFileName(directoryComponents[joinStartIndex]) !== getCanonicalFileName(pathComponents[joinStartIndex])) {
                break;
            }
        }
        if (joinStartIndex) {
            var relativePath = "";
            var relativePathComponents = pathComponents.slice(joinStartIndex, pathComponents.length);
            for (; joinStartIndex < directoryComponents.length; joinStartIndex++) {
                if (directoryComponents[joinStartIndex] !== "") {
                    relativePath = relativePath + ".." + ts.directorySeparator;
                }
            }
            return relativePath + relativePathComponents.join(ts.directorySeparator);
        }
        var absolutePath = getNormalizedPathFromPathComponents(pathComponents);
        if (isAbsolutePathAnUrl && isRootedDiskPath(absolutePath)) {
            absolutePath = "file:///" + absolutePath;
        }
        return absolutePath;
    }
    ts.getRelativePathToDirectoryOrUrl = getRelativePathToDirectoryOrUrl;
    function getBaseFileName(path) {
        if (path === undefined) {
            return undefined;
        }
        var i = path.lastIndexOf(ts.directorySeparator);
        return i < 0 ? path : path.substring(i + 1);
    }
    ts.getBaseFileName = getBaseFileName;
    function combinePaths(path1, path2) {
        if (!(path1 && path1.length))
            return path2;
        if (!(path2 && path2.length))
            return path1;
        if (getRootLength(path2) !== 0)
            return path2;
        if (path1.charAt(path1.length - 1) === ts.directorySeparator)
            return path1 + path2;
        return path1 + ts.directorySeparator + path2;
    }
    ts.combinePaths = combinePaths;
    function fileExtensionIs(path, extension) {
        var pathLen = path.length;
        var extLen = extension.length;
        return pathLen > extLen && path.substr(pathLen - extLen, extLen) === extension;
    }
    ts.fileExtensionIs = fileExtensionIs;
    function ensureScriptKind(fileName, scriptKind) {
        return (scriptKind || getScriptKindFromFileName(fileName)) || 3;
    }
    ts.ensureScriptKind = ensureScriptKind;
    function getScriptKindFromFileName(fileName) {
        var ext = fileName.substr(fileName.lastIndexOf("."));
        switch (ext.toLowerCase()) {
            case ".js":
                return 1;
            case ".jsx":
                return 2;
            case ".ts":
                return 3;
            case ".tsx":
                return 4;
            default:
                return 0;
        }
    }
    ts.getScriptKindFromFileName = getScriptKindFromFileName;
    ts.supportedTypeScriptExtensions = [".ts", ".tsx", ".d.ts"];
    ts.supportedJavascriptExtensions = [".js", ".jsx"];
    var allSupportedExtensions = ts.supportedTypeScriptExtensions.concat(ts.supportedJavascriptExtensions);
    function getSupportedExtensions(options) {
        return options && options.allowJs ? allSupportedExtensions : ts.supportedTypeScriptExtensions;
    }
    ts.getSupportedExtensions = getSupportedExtensions;
    function isSupportedSourceFileName(fileName, compilerOptions) {
        if (!fileName) {
            return false;
        }
        for (var _i = 0, _a = getSupportedExtensions(compilerOptions); _i < _a.length; _i++) {
            var extension = _a[_i];
            if (fileExtensionIs(fileName, extension)) {
                return true;
            }
        }
        return false;
    }
    ts.isSupportedSourceFileName = isSupportedSourceFileName;
    var extensionsToRemove = [".d.ts", ".ts", ".js", ".tsx", ".jsx"];
    function removeFileExtension(path) {
        for (var _i = 0, extensionsToRemove_1 = extensionsToRemove; _i < extensionsToRemove_1.length; _i++) {
            var ext = extensionsToRemove_1[_i];
            if (fileExtensionIs(path, ext)) {
                return path.substr(0, path.length - ext.length);
            }
        }
        return path;
    }
    ts.removeFileExtension = removeFileExtension;
    function Symbol(flags, name) {
        this.flags = flags;
        this.name = name;
        this.declarations = undefined;
    }
    function Type(checker, flags) {
        this.flags = flags;
    }
    function Signature(checker) {
    }
    function Node(kind, pos, end) {
        this.kind = kind;
        this.pos = pos;
        this.end = end;
        this.flags = 0;
        this.parent = undefined;
    }
    ts.objectAllocator = {
        getNodeConstructor: function () { return Node; },
        getSourceFileConstructor: function () { return Node; },
        getSymbolConstructor: function () { return Symbol; },
        getTypeConstructor: function () { return Type; },
        getSignatureConstructor: function () { return Signature; }
    };
    var Debug;
    (function (Debug) {
        var currentAssertionLevel = 0;
        function shouldAssert(level) {
            return currentAssertionLevel >= level;
        }
        Debug.shouldAssert = shouldAssert;
        function assert(expression, message, verboseDebugInfo) {
            if (!expression) {
                var verboseDebugString = "";
                if (verboseDebugInfo) {
                    verboseDebugString = "\r\nVerbose Debug Information: " + verboseDebugInfo();
                }
                debugger;
                throw new Error("Debug Failure. False expression: " + (message || "") + verboseDebugString);
            }
        }
        Debug.assert = assert;
        function fail(message) {
            Debug.assert(false, message);
        }
        Debug.fail = fail;
    })(Debug = ts.Debug || (ts.Debug = {}));
    function copyListRemovingItem(item, list) {
        var copiedList = [];
        for (var _i = 0, list_1 = list; _i < list_1.length; _i++) {
            var e = list_1[_i];
            if (e !== item) {
                copiedList.push(e);
            }
        }
        return copiedList;
    }
    ts.copyListRemovingItem = copyListRemovingItem;
    function createGetCanonicalFileName(useCaseSensitivefileNames) {
        return useCaseSensitivefileNames
            ? (function (fileName) { return fileName; })
            : (function (fileName) { return fileName.toLowerCase(); });
    }
    ts.createGetCanonicalFileName = createGetCanonicalFileName;
})(ts || (ts = {}));
var ts;
(function (ts) {
    ts.sys = (function () {
        function getWScriptSystem() {
            var fso = new ActiveXObject("Scripting.FileSystemObject");
            var fileStream = new ActiveXObject("ADODB.Stream");
            fileStream.Type = 2;
            var binaryStream = new ActiveXObject("ADODB.Stream");
            binaryStream.Type = 1;
            var args = [];
            for (var i = 0; i < WScript.Arguments.length; i++) {
                args[i] = WScript.Arguments.Item(i);
            }
            function readFile(fileName, encoding) {
                if (!fso.FileExists(fileName)) {
                    return undefined;
                }
                fileStream.Open();
                try {
                    if (encoding) {
                        fileStream.Charset = encoding;
                        fileStream.LoadFromFile(fileName);
                    }
                    else {
                        fileStream.Charset = "x-ansi";
                        fileStream.LoadFromFile(fileName);
                        var bom = fileStream.ReadText(2) || "";
                        fileStream.Position = 0;
                        fileStream.Charset = bom.length >= 2 && (bom.charCodeAt(0) === 0xFF && bom.charCodeAt(1) === 0xFE || bom.charCodeAt(0) === 0xFE && bom.charCodeAt(1) === 0xFF) ? "unicode" : "utf-8";
                    }
                    return fileStream.ReadText();
                }
                catch (e) {
                    throw e;
                }
                finally {
                    fileStream.Close();
                }
            }
            function writeFile(fileName, data, writeByteOrderMark) {
                fileStream.Open();
                binaryStream.Open();
                try {
                    fileStream.Charset = "utf-8";
                    fileStream.WriteText(data);
                    if (writeByteOrderMark) {
                        fileStream.Position = 0;
                    }
                    else {
                        fileStream.Position = 3;
                    }
                    fileStream.CopyTo(binaryStream);
                    binaryStream.SaveToFile(fileName, 2);
                }
                finally {
                    binaryStream.Close();
                    fileStream.Close();
                }
            }
            function getCanonicalPath(path) {
                return path.toLowerCase();
            }
            function getNames(collection) {
                var result = [];
                for (var e = new Enumerator(collection); !e.atEnd(); e.moveNext()) {
                    result.push(e.item().Name);
                }
                return result.sort();
            }
            function readDirectory(path, extension, exclude) {
                var result = [];
                exclude = ts.map(exclude, function (s) { return getCanonicalPath(ts.combinePaths(path, s)); });
                visitDirectory(path);
                return result;
                function visitDirectory(path) {
                    var folder = fso.GetFolder(path || ".");
                    var files = getNames(folder.files);
                    for (var _i = 0, files_1 = files; _i < files_1.length; _i++) {
                        var current = files_1[_i];
                        var name_1 = ts.combinePaths(path, current);
                        if ((!extension || ts.fileExtensionIs(name_1, extension)) && !ts.contains(exclude, getCanonicalPath(name_1))) {
                            result.push(name_1);
                        }
                    }
                    var subfolders = getNames(folder.subfolders);
                    for (var _a = 0, subfolders_1 = subfolders; _a < subfolders_1.length; _a++) {
                        var current = subfolders_1[_a];
                        var name_2 = ts.combinePaths(path, current);
                        if (!ts.contains(exclude, getCanonicalPath(name_2))) {
                            visitDirectory(name_2);
                        }
                    }
                }
            }
            return {
                args: args,
                newLine: "\r\n",
                useCaseSensitiveFileNames: false,
                write: function (s) {
                    WScript.StdOut.Write(s);
                },
                readFile: readFile,
                writeFile: writeFile,
                resolvePath: function (path) {
                    return fso.GetAbsolutePathName(path);
                },
                fileExists: function (path) {
                    return fso.FileExists(path);
                },
                directoryExists: function (path) {
                    return fso.FolderExists(path);
                },
                createDirectory: function (directoryName) {
                    if (!this.directoryExists(directoryName)) {
                        fso.CreateFolder(directoryName);
                    }
                },
                getExecutingFilePath: function () {
                    return WScript.ScriptFullName;
                },
                getCurrentDirectory: function () {
                    return new ActiveXObject("WScript.Shell").CurrentDirectory;
                },
                readDirectory: readDirectory,
                exit: function (exitCode) {
                    try {
                        WScript.Quit(exitCode);
                    }
                    catch (e) {
                    }
                }
            };
        }
        function getNodeSystem() {
            var _fs = require("fs");
            var _path = require("path");
            var _os = require("os");
            var _crypto = require("crypto");
            var useNonPollingWatchers = process.env["TSC_NONPOLLING_WATCHER"];
            function createWatchedFileSet() {
                var dirWatchers = {};
                var fileWatcherCallbacks = {};
                return { addFile: addFile, removeFile: removeFile };
                function reduceDirWatcherRefCountForFile(fileName) {
                    var dirName = ts.getDirectoryPath(fileName);
                    if (ts.hasProperty(dirWatchers, dirName)) {
                        var watcher = dirWatchers[dirName];
                        watcher.referenceCount -= 1;
                        if (watcher.referenceCount <= 0) {
                            watcher.close();
                            delete dirWatchers[dirName];
                        }
                    }
                }
                function addDirWatcher(dirPath) {
                    if (ts.hasProperty(dirWatchers, dirPath)) {
                        var watcher_1 = dirWatchers[dirPath];
                        watcher_1.referenceCount += 1;
                        return;
                    }
                    var watcher = _fs.watch(dirPath, { persistent: true }, function (eventName, relativeFileName) { return fileEventHandler(eventName, relativeFileName, dirPath); });
                    watcher.referenceCount = 1;
                    dirWatchers[dirPath] = watcher;
                    return;
                }
                function addFileWatcherCallback(filePath, callback) {
                    if (ts.hasProperty(fileWatcherCallbacks, filePath)) {
                        fileWatcherCallbacks[filePath].push(callback);
                    }
                    else {
                        fileWatcherCallbacks[filePath] = [callback];
                    }
                }
                function addFile(fileName, callback) {
                    addFileWatcherCallback(fileName, callback);
                    addDirWatcher(ts.getDirectoryPath(fileName));
                    return { fileName: fileName, callback: callback };
                }
                function removeFile(watchedFile) {
                    removeFileWatcherCallback(watchedFile.fileName, watchedFile.callback);
                    reduceDirWatcherRefCountForFile(watchedFile.fileName);
                }
                function removeFileWatcherCallback(filePath, callback) {
                    if (ts.hasProperty(fileWatcherCallbacks, filePath)) {
                        var newCallbacks = ts.copyListRemovingItem(callback, fileWatcherCallbacks[filePath]);
                        if (newCallbacks.length === 0) {
                            delete fileWatcherCallbacks[filePath];
                        }
                        else {
                            fileWatcherCallbacks[filePath] = newCallbacks;
                        }
                    }
                }
                function fileEventHandler(eventName, relativeFileName, baseDirPath) {
                    var fileName = typeof relativeFileName !== "string"
                        ? undefined
                        : ts.getNormalizedAbsolutePath(relativeFileName, baseDirPath);
                    if ((eventName === "change" || eventName === "rename") && ts.hasProperty(fileWatcherCallbacks, fileName)) {
                        for (var _i = 0, _a = fileWatcherCallbacks[fileName]; _i < _a.length; _i++) {
                            var fileCallback = _a[_i];
                            fileCallback(fileName);
                        }
                    }
                }
            }
            var watchedFileSet = createWatchedFileSet();
            function isNode4OrLater() {
                return parseInt(process.version.charAt(1)) >= 4;
            }
            var platform = _os.platform();
            var useCaseSensitiveFileNames = platform !== "win32" && platform !== "win64" && platform !== "darwin";
            function readFile(fileName, encoding) {
                if (!fileExists(fileName)) {
                    return undefined;
                }
                var buffer = _fs.readFileSync(fileName);
                var len = buffer.length;
                if (len >= 2 && buffer[0] === 0xFE && buffer[1] === 0xFF) {
                    len &= ~1;
                    for (var i = 0; i < len; i += 2) {
                        var temp = buffer[i];
                        buffer[i] = buffer[i + 1];
                        buffer[i + 1] = temp;
                    }
                    return buffer.toString("utf16le", 2);
                }
                if (len >= 2 && buffer[0] === 0xFF && buffer[1] === 0xFE) {
                    return buffer.toString("utf16le", 2);
                }
                if (len >= 3 && buffer[0] === 0xEF && buffer[1] === 0xBB && buffer[2] === 0xBF) {
                    return buffer.toString("utf8", 3);
                }
                return buffer.toString("utf8");
            }
            function writeFile(fileName, data, writeByteOrderMark) {
                if (writeByteOrderMark) {
                    data = "\uFEFF" + data;
                }
                var fd;
                try {
                    fd = _fs.openSync(fileName, "w");
                    _fs.writeSync(fd, data, undefined, "utf8");
                }
                finally {
                    if (fd !== undefined) {
                        _fs.closeSync(fd);
                    }
                }
            }
            function getCanonicalPath(path) {
                return useCaseSensitiveFileNames ? path : path.toLowerCase();
            }
            function fileSystemEntryExists(path, entryKind) {
                try {
                    var stat = _fs.statSync(path);
                    switch (entryKind) {
                        case 0: return stat.isFile();
                        case 1: return stat.isDirectory();
                    }
                }
                catch (e) {
                    return false;
                }
            }
            function fileExists(path) {
                return fileSystemEntryExists(path, 0);
            }
            function directoryExists(path) {
                return fileSystemEntryExists(path, 1);
            }
            function readDirectory(path, extension, exclude) {
                var result = [];
                exclude = ts.map(exclude, function (s) { return getCanonicalPath(ts.combinePaths(path, s)); });
                visitDirectory(path);
                return result;
                function visitDirectory(path) {
                    var files = _fs.readdirSync(path || ".").sort();
                    var directories = [];
                    for (var _i = 0, files_2 = files; _i < files_2.length; _i++) {
                        var current = files_2[_i];
                        if (current === "." || current === "..") {
                            continue;
                        }
                        var name_3 = ts.combinePaths(path, current);
                        if (!ts.contains(exclude, getCanonicalPath(name_3))) {
                            var stat = _fs.statSync(name_3);
                            if (stat.isFile()) {
                                if (!extension || ts.fileExtensionIs(name_3, extension)) {
                                    result.push(name_3);
                                }
                            }
                            else if (stat.isDirectory()) {
                                directories.push(name_3);
                            }
                        }
                    }
                    for (var _a = 0, directories_1 = directories; _a < directories_1.length; _a++) {
                        var current = directories_1[_a];
                        visitDirectory(current);
                    }
                }
            }
            return {
                args: process.argv.slice(2),
                newLine: _os.EOL,
                useCaseSensitiveFileNames: useCaseSensitiveFileNames,
                write: function (s) {
                    process.stdout.write(s);
                },
                readFile: readFile,
                writeFile: writeFile,
                watchFile: function (fileName, callback) {
                    if (useNonPollingWatchers) {
                        var watchedFile_1 = watchedFileSet.addFile(fileName, callback);
                        return {
                            close: function () { return watchedFileSet.removeFile(watchedFile_1); }
                        };
                    }
                    else {
                        _fs.watchFile(fileName, { persistent: true, interval: 250 }, fileChanged);
                        return {
                            close: function () { return _fs.unwatchFile(fileName, fileChanged); }
                        };
                    }
                    function fileChanged(curr, prev) {
                        if (+curr.mtime <= +prev.mtime) {
                            return;
                        }
                        callback(fileName);
                    }
                },
                watchDirectory: function (directoryName, callback, recursive) {
                    var options;
                    if (isNode4OrLater() && (process.platform === "win32" || process.platform === "darwin")) {
                        options = { persistent: true, recursive: !!recursive };
                    }
                    else {
                        options = { persistent: true };
                    }
                    return _fs.watch(directoryName, options, function (eventName, relativeFileName) {
                        if (eventName === "rename") {
                            callback(!relativeFileName ? relativeFileName : ts.normalizePath(ts.combinePaths(directoryName, relativeFileName)));
                        }
                        ;
                    });
                },
                resolvePath: function (path) {
                    return _path.resolve(path);
                },
                fileExists: fileExists,
                directoryExists: directoryExists,
                createDirectory: function (directoryName) {
                    if (!this.directoryExists(directoryName)) {
                        _fs.mkdirSync(directoryName);
                    }
                },
                getExecutingFilePath: function () {
                    return __filename;
                },
                getCurrentDirectory: function () {
                    return process.cwd();
                },
                readDirectory: readDirectory,
                getModifiedTime: function (path) {
                    try {
                        return _fs.statSync(path).mtime;
                    }
                    catch (e) {
                        return undefined;
                    }
                },
                createHash: function (data) {
                    var hash = _crypto.createHash("md5");
                    hash.update(data);
                    return hash.digest("hex");
                },
                getMemoryUsage: function () {
                    if (global.gc) {
                        global.gc();
                    }
                    return process.memoryUsage().heapUsed;
                },
                exit: function (exitCode) {
                    process.exit(exitCode);
                }
            };
        }
        function getChakraSystem() {
            return {
                newLine: ChakraHost.newLine || "\r\n",
                args: ChakraHost.args,
                useCaseSensitiveFileNames: !!ChakraHost.useCaseSensitiveFileNames,
                write: ChakraHost.echo,
                readFile: function (path, encoding) {
                    return ChakraHost.readFile(path);
                },
                writeFile: function (path, data, writeByteOrderMark) {
                    if (writeByteOrderMark) {
                        data = "\uFEFF" + data;
                    }
                    ChakraHost.writeFile(path, data);
                },
                resolvePath: ChakraHost.resolvePath,
                fileExists: ChakraHost.fileExists,
                directoryExists: ChakraHost.directoryExists,
                createDirectory: ChakraHost.createDirectory,
                getExecutingFilePath: function () { return ChakraHost.executingFile; },
                getCurrentDirectory: function () { return ChakraHost.currentDirectory; },
                readDirectory: ChakraHost.readDirectory,
                exit: ChakraHost.quit
            };
        }
        if (typeof ChakraHost !== "undefined") {
            return getChakraSystem();
        }
        else if (typeof WScript !== "undefined" && typeof ActiveXObject === "function") {
            return getWScriptSystem();
        }
        else if (typeof process !== "undefined" && process.nextTick && !process.browser && typeof require !== "undefined") {
            return getNodeSystem();
        }
        else {
            return undefined;
        }
    })();
})(ts || (ts = {}));
var ts;
(function (ts) {
    ts.Diagnostics = {
        Unterminated_string_literal: { code: 1002, category: ts.DiagnosticCategory.Error, key: "Unterminated_string_literal_1002", message: "Unterminated string literal." },
        Identifier_expected: { code: 1003, category: ts.DiagnosticCategory.Error, key: "Identifier_expected_1003", message: "Identifier expected." },
        _0_expected: { code: 1005, category: ts.DiagnosticCategory.Error, key: "_0_expected_1005", message: "'{0}' expected." },
        A_file_cannot_have_a_reference_to_itself: { code: 1006, category: ts.DiagnosticCategory.Error, key: "A_file_cannot_have_a_reference_to_itself_1006", message: "A file cannot have a reference to itself." },
        Trailing_comma_not_allowed: { code: 1009, category: ts.DiagnosticCategory.Error, key: "Trailing_comma_not_allowed_1009", message: "Trailing comma not allowed." },
        Asterisk_Slash_expected: { code: 1010, category: ts.DiagnosticCategory.Error, key: "Asterisk_Slash_expected_1010", message: "'*/' expected." },
        Unexpected_token: { code: 1012, category: ts.DiagnosticCategory.Error, key: "Unexpected_token_1012", message: "Unexpected token." },
        A_rest_parameter_must_be_last_in_a_parameter_list: { code: 1014, category: ts.DiagnosticCategory.Error, key: "A_rest_parameter_must_be_last_in_a_parameter_list_1014", message: "A rest parameter must be last in a parameter list." },
        Parameter_cannot_have_question_mark_and_initializer: { code: 1015, category: ts.DiagnosticCategory.Error, key: "Parameter_cannot_have_question_mark_and_initializer_1015", message: "Parameter cannot have question mark and initializer." },
        A_required_parameter_cannot_follow_an_optional_parameter: { code: 1016, category: ts.DiagnosticCategory.Error, key: "A_required_parameter_cannot_follow_an_optional_parameter_1016", message: "A required parameter cannot follow an optional parameter." },
        An_index_signature_cannot_have_a_rest_parameter: { code: 1017, category: ts.DiagnosticCategory.Error, key: "An_index_signature_cannot_have_a_rest_parameter_1017", message: "An index signature cannot have a rest parameter." },
        An_index_signature_parameter_cannot_have_an_accessibility_modifier: { code: 1018, category: ts.DiagnosticCategory.Error, key: "An_index_signature_parameter_cannot_have_an_accessibility_modifier_1018", message: "An index signature parameter cannot have an accessibility modifier." },
        An_index_signature_parameter_cannot_have_a_question_mark: { code: 1019, category: ts.DiagnosticCategory.Error, key: "An_index_signature_parameter_cannot_have_a_question_mark_1019", message: "An index signature parameter cannot have a question mark." },
        An_index_signature_parameter_cannot_have_an_initializer: { code: 1020, category: ts.DiagnosticCategory.Error, key: "An_index_signature_parameter_cannot_have_an_initializer_1020", message: "An index signature parameter cannot have an initializer." },
        An_index_signature_must_have_a_type_annotation: { code: 1021, category: ts.DiagnosticCategory.Error, key: "An_index_signature_must_have_a_type_annotation_1021", message: "An index signature must have a type annotation." },
        An_index_signature_parameter_must_have_a_type_annotation: { code: 1022, category: ts.DiagnosticCategory.Error, key: "An_index_signature_parameter_must_have_a_type_annotation_1022", message: "An index signature parameter must have a type annotation." },
        An_index_signature_parameter_type_must_be_string_or_number: { code: 1023, category: ts.DiagnosticCategory.Error, key: "An_index_signature_parameter_type_must_be_string_or_number_1023", message: "An index signature parameter type must be 'string' or 'number'." },
        readonly_modifier_can_only_appear_on_a_property_declaration_or_index_signature: { code: 1024, category: ts.DiagnosticCategory.Error, key: "readonly_modifier_can_only_appear_on_a_property_declaration_or_index_signature_1024", message: "'readonly' modifier can only appear on a property declaration or index signature." },
        Accessibility_modifier_already_seen: { code: 1028, category: ts.DiagnosticCategory.Error, key: "Accessibility_modifier_already_seen_1028", message: "Accessibility modifier already seen." },
        _0_modifier_must_precede_1_modifier: { code: 1029, category: ts.DiagnosticCategory.Error, key: "_0_modifier_must_precede_1_modifier_1029", message: "'{0}' modifier must precede '{1}' modifier." },
        _0_modifier_already_seen: { code: 1030, category: ts.DiagnosticCategory.Error, key: "_0_modifier_already_seen_1030", message: "'{0}' modifier already seen." },
        _0_modifier_cannot_appear_on_a_class_element: { code: 1031, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_class_element_1031", message: "'{0}' modifier cannot appear on a class element." },
        super_must_be_followed_by_an_argument_list_or_member_access: { code: 1034, category: ts.DiagnosticCategory.Error, key: "super_must_be_followed_by_an_argument_list_or_member_access_1034", message: "'super' must be followed by an argument list or member access." },
        Only_ambient_modules_can_use_quoted_names: { code: 1035, category: ts.DiagnosticCategory.Error, key: "Only_ambient_modules_can_use_quoted_names_1035", message: "Only ambient modules can use quoted names." },
        Statements_are_not_allowed_in_ambient_contexts: { code: 1036, category: ts.DiagnosticCategory.Error, key: "Statements_are_not_allowed_in_ambient_contexts_1036", message: "Statements are not allowed in ambient contexts." },
        A_declare_modifier_cannot_be_used_in_an_already_ambient_context: { code: 1038, category: ts.DiagnosticCategory.Error, key: "A_declare_modifier_cannot_be_used_in_an_already_ambient_context_1038", message: "A 'declare' modifier cannot be used in an already ambient context." },
        Initializers_are_not_allowed_in_ambient_contexts: { code: 1039, category: ts.DiagnosticCategory.Error, key: "Initializers_are_not_allowed_in_ambient_contexts_1039", message: "Initializers are not allowed in ambient contexts." },
        _0_modifier_cannot_be_used_in_an_ambient_context: { code: 1040, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_be_used_in_an_ambient_context_1040", message: "'{0}' modifier cannot be used in an ambient context." },
        _0_modifier_cannot_be_used_with_a_class_declaration: { code: 1041, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_be_used_with_a_class_declaration_1041", message: "'{0}' modifier cannot be used with a class declaration." },
        _0_modifier_cannot_be_used_here: { code: 1042, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_be_used_here_1042", message: "'{0}' modifier cannot be used here." },
        _0_modifier_cannot_appear_on_a_data_property: { code: 1043, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_data_property_1043", message: "'{0}' modifier cannot appear on a data property." },
        _0_modifier_cannot_appear_on_a_module_or_namespace_element: { code: 1044, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_module_or_namespace_element_1044", message: "'{0}' modifier cannot appear on a module or namespace element." },
        A_0_modifier_cannot_be_used_with_an_interface_declaration: { code: 1045, category: ts.DiagnosticCategory.Error, key: "A_0_modifier_cannot_be_used_with_an_interface_declaration_1045", message: "A '{0}' modifier cannot be used with an interface declaration." },
        A_declare_modifier_is_required_for_a_top_level_declaration_in_a_d_ts_file: { code: 1046, category: ts.DiagnosticCategory.Error, key: "A_declare_modifier_is_required_for_a_top_level_declaration_in_a_d_ts_file_1046", message: "A 'declare' modifier is required for a top level declaration in a .d.ts file." },
        A_rest_parameter_cannot_be_optional: { code: 1047, category: ts.DiagnosticCategory.Error, key: "A_rest_parameter_cannot_be_optional_1047", message: "A rest parameter cannot be optional." },
        A_rest_parameter_cannot_have_an_initializer: { code: 1048, category: ts.DiagnosticCategory.Error, key: "A_rest_parameter_cannot_have_an_initializer_1048", message: "A rest parameter cannot have an initializer." },
        A_set_accessor_must_have_exactly_one_parameter: { code: 1049, category: ts.DiagnosticCategory.Error, key: "A_set_accessor_must_have_exactly_one_parameter_1049", message: "A 'set' accessor must have exactly one parameter." },
        A_set_accessor_cannot_have_an_optional_parameter: { code: 1051, category: ts.DiagnosticCategory.Error, key: "A_set_accessor_cannot_have_an_optional_parameter_1051", message: "A 'set' accessor cannot have an optional parameter." },
        A_set_accessor_parameter_cannot_have_an_initializer: { code: 1052, category: ts.DiagnosticCategory.Error, key: "A_set_accessor_parameter_cannot_have_an_initializer_1052", message: "A 'set' accessor parameter cannot have an initializer." },
        A_set_accessor_cannot_have_rest_parameter: { code: 1053, category: ts.DiagnosticCategory.Error, key: "A_set_accessor_cannot_have_rest_parameter_1053", message: "A 'set' accessor cannot have rest parameter." },
        A_get_accessor_cannot_have_parameters: { code: 1054, category: ts.DiagnosticCategory.Error, key: "A_get_accessor_cannot_have_parameters_1054", message: "A 'get' accessor cannot have parameters." },
        Type_0_is_not_a_valid_async_function_return_type: { code: 1055, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_a_valid_async_function_return_type_1055", message: "Type '{0}' is not a valid async function return type." },
        Accessors_are_only_available_when_targeting_ECMAScript_5_and_higher: { code: 1056, category: ts.DiagnosticCategory.Error, key: "Accessors_are_only_available_when_targeting_ECMAScript_5_and_higher_1056", message: "Accessors are only available when targeting ECMAScript 5 and higher." },
        An_async_function_or_method_must_have_a_valid_awaitable_return_type: { code: 1057, category: ts.DiagnosticCategory.Error, key: "An_async_function_or_method_must_have_a_valid_awaitable_return_type_1057", message: "An async function or method must have a valid awaitable return type." },
        Operand_for_await_does_not_have_a_valid_callable_then_member: { code: 1058, category: ts.DiagnosticCategory.Error, key: "Operand_for_await_does_not_have_a_valid_callable_then_member_1058", message: "Operand for 'await' does not have a valid callable 'then' member." },
        Return_expression_in_async_function_does_not_have_a_valid_callable_then_member: { code: 1059, category: ts.DiagnosticCategory.Error, key: "Return_expression_in_async_function_does_not_have_a_valid_callable_then_member_1059", message: "Return expression in async function does not have a valid callable 'then' member." },
        Expression_body_for_async_arrow_function_does_not_have_a_valid_callable_then_member: { code: 1060, category: ts.DiagnosticCategory.Error, key: "Expression_body_for_async_arrow_function_does_not_have_a_valid_callable_then_member_1060", message: "Expression body for async arrow function does not have a valid callable 'then' member." },
        Enum_member_must_have_initializer: { code: 1061, category: ts.DiagnosticCategory.Error, key: "Enum_member_must_have_initializer_1061", message: "Enum member must have initializer." },
        _0_is_referenced_directly_or_indirectly_in_the_fulfillment_callback_of_its_own_then_method: { code: 1062, category: ts.DiagnosticCategory.Error, key: "_0_is_referenced_directly_or_indirectly_in_the_fulfillment_callback_of_its_own_then_method_1062", message: "{0} is referenced directly or indirectly in the fulfillment callback of its own 'then' method." },
        An_export_assignment_cannot_be_used_in_a_namespace: { code: 1063, category: ts.DiagnosticCategory.Error, key: "An_export_assignment_cannot_be_used_in_a_namespace_1063", message: "An export assignment cannot be used in a namespace." },
        The_return_type_of_an_async_function_or_method_must_be_the_global_Promise_T_type: { code: 1064, category: ts.DiagnosticCategory.Error, key: "The_return_type_of_an_async_function_or_method_must_be_the_global_Promise_T_type_1064", message: "The return type of an async function or method must be the global Promise<T> type." },
        In_ambient_enum_declarations_member_initializer_must_be_constant_expression: { code: 1066, category: ts.DiagnosticCategory.Error, key: "In_ambient_enum_declarations_member_initializer_must_be_constant_expression_1066", message: "In ambient enum declarations member initializer must be constant expression." },
        Unexpected_token_A_constructor_method_accessor_or_property_was_expected: { code: 1068, category: ts.DiagnosticCategory.Error, key: "Unexpected_token_A_constructor_method_accessor_or_property_was_expected_1068", message: "Unexpected token. A constructor, method, accessor, or property was expected." },
        _0_modifier_cannot_appear_on_a_type_member: { code: 1070, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_type_member_1070", message: "'{0}' modifier cannot appear on a type member." },
        _0_modifier_cannot_appear_on_an_index_signature: { code: 1071, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_an_index_signature_1071", message: "'{0}' modifier cannot appear on an index signature." },
        A_0_modifier_cannot_be_used_with_an_import_declaration: { code: 1079, category: ts.DiagnosticCategory.Error, key: "A_0_modifier_cannot_be_used_with_an_import_declaration_1079", message: "A '{0}' modifier cannot be used with an import declaration." },
        Invalid_reference_directive_syntax: { code: 1084, category: ts.DiagnosticCategory.Error, key: "Invalid_reference_directive_syntax_1084", message: "Invalid 'reference' directive syntax." },
        Octal_literals_are_not_available_when_targeting_ECMAScript_5_and_higher: { code: 1085, category: ts.DiagnosticCategory.Error, key: "Octal_literals_are_not_available_when_targeting_ECMAScript_5_and_higher_1085", message: "Octal literals are not available when targeting ECMAScript 5 and higher." },
        An_accessor_cannot_be_declared_in_an_ambient_context: { code: 1086, category: ts.DiagnosticCategory.Error, key: "An_accessor_cannot_be_declared_in_an_ambient_context_1086", message: "An accessor cannot be declared in an ambient context." },
        _0_modifier_cannot_appear_on_a_constructor_declaration: { code: 1089, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_constructor_declaration_1089", message: "'{0}' modifier cannot appear on a constructor declaration." },
        _0_modifier_cannot_appear_on_a_parameter: { code: 1090, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_appear_on_a_parameter_1090", message: "'{0}' modifier cannot appear on a parameter." },
        Only_a_single_variable_declaration_is_allowed_in_a_for_in_statement: { code: 1091, category: ts.DiagnosticCategory.Error, key: "Only_a_single_variable_declaration_is_allowed_in_a_for_in_statement_1091", message: "Only a single variable declaration is allowed in a 'for...in' statement." },
        Type_parameters_cannot_appear_on_a_constructor_declaration: { code: 1092, category: ts.DiagnosticCategory.Error, key: "Type_parameters_cannot_appear_on_a_constructor_declaration_1092", message: "Type parameters cannot appear on a constructor declaration." },
        Type_annotation_cannot_appear_on_a_constructor_declaration: { code: 1093, category: ts.DiagnosticCategory.Error, key: "Type_annotation_cannot_appear_on_a_constructor_declaration_1093", message: "Type annotation cannot appear on a constructor declaration." },
        An_accessor_cannot_have_type_parameters: { code: 1094, category: ts.DiagnosticCategory.Error, key: "An_accessor_cannot_have_type_parameters_1094", message: "An accessor cannot have type parameters." },
        A_set_accessor_cannot_have_a_return_type_annotation: { code: 1095, category: ts.DiagnosticCategory.Error, key: "A_set_accessor_cannot_have_a_return_type_annotation_1095", message: "A 'set' accessor cannot have a return type annotation." },
        An_index_signature_must_have_exactly_one_parameter: { code: 1096, category: ts.DiagnosticCategory.Error, key: "An_index_signature_must_have_exactly_one_parameter_1096", message: "An index signature must have exactly one parameter." },
        _0_list_cannot_be_empty: { code: 1097, category: ts.DiagnosticCategory.Error, key: "_0_list_cannot_be_empty_1097", message: "'{0}' list cannot be empty." },
        Type_parameter_list_cannot_be_empty: { code: 1098, category: ts.DiagnosticCategory.Error, key: "Type_parameter_list_cannot_be_empty_1098", message: "Type parameter list cannot be empty." },
        Type_argument_list_cannot_be_empty: { code: 1099, category: ts.DiagnosticCategory.Error, key: "Type_argument_list_cannot_be_empty_1099", message: "Type argument list cannot be empty." },
        Invalid_use_of_0_in_strict_mode: { code: 1100, category: ts.DiagnosticCategory.Error, key: "Invalid_use_of_0_in_strict_mode_1100", message: "Invalid use of '{0}' in strict mode." },
        with_statements_are_not_allowed_in_strict_mode: { code: 1101, category: ts.DiagnosticCategory.Error, key: "with_statements_are_not_allowed_in_strict_mode_1101", message: "'with' statements are not allowed in strict mode." },
        delete_cannot_be_called_on_an_identifier_in_strict_mode: { code: 1102, category: ts.DiagnosticCategory.Error, key: "delete_cannot_be_called_on_an_identifier_in_strict_mode_1102", message: "'delete' cannot be called on an identifier in strict mode." },
        A_continue_statement_can_only_be_used_within_an_enclosing_iteration_statement: { code: 1104, category: ts.DiagnosticCategory.Error, key: "A_continue_statement_can_only_be_used_within_an_enclosing_iteration_statement_1104", message: "A 'continue' statement can only be used within an enclosing iteration statement." },
        A_break_statement_can_only_be_used_within_an_enclosing_iteration_or_switch_statement: { code: 1105, category: ts.DiagnosticCategory.Error, key: "A_break_statement_can_only_be_used_within_an_enclosing_iteration_or_switch_statement_1105", message: "A 'break' statement can only be used within an enclosing iteration or switch statement." },
        Jump_target_cannot_cross_function_boundary: { code: 1107, category: ts.DiagnosticCategory.Error, key: "Jump_target_cannot_cross_function_boundary_1107", message: "Jump target cannot cross function boundary." },
        A_return_statement_can_only_be_used_within_a_function_body: { code: 1108, category: ts.DiagnosticCategory.Error, key: "A_return_statement_can_only_be_used_within_a_function_body_1108", message: "A 'return' statement can only be used within a function body." },
        Expression_expected: { code: 1109, category: ts.DiagnosticCategory.Error, key: "Expression_expected_1109", message: "Expression expected." },
        Type_expected: { code: 1110, category: ts.DiagnosticCategory.Error, key: "Type_expected_1110", message: "Type expected." },
        A_class_member_cannot_be_declared_optional: { code: 1112, category: ts.DiagnosticCategory.Error, key: "A_class_member_cannot_be_declared_optional_1112", message: "A class member cannot be declared optional." },
        A_default_clause_cannot_appear_more_than_once_in_a_switch_statement: { code: 1113, category: ts.DiagnosticCategory.Error, key: "A_default_clause_cannot_appear_more_than_once_in_a_switch_statement_1113", message: "A 'default' clause cannot appear more than once in a 'switch' statement." },
        Duplicate_label_0: { code: 1114, category: ts.DiagnosticCategory.Error, key: "Duplicate_label_0_1114", message: "Duplicate label '{0}'" },
        A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement: { code: 1115, category: ts.DiagnosticCategory.Error, key: "A_continue_statement_can_only_jump_to_a_label_of_an_enclosing_iteration_statement_1115", message: "A 'continue' statement can only jump to a label of an enclosing iteration statement." },
        A_break_statement_can_only_jump_to_a_label_of_an_enclosing_statement: { code: 1116, category: ts.DiagnosticCategory.Error, key: "A_break_statement_can_only_jump_to_a_label_of_an_enclosing_statement_1116", message: "A 'break' statement can only jump to a label of an enclosing statement." },
        An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode: { code: 1117, category: ts.DiagnosticCategory.Error, key: "An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode_1117", message: "An object literal cannot have multiple properties with the same name in strict mode." },
        An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name: { code: 1118, category: ts.DiagnosticCategory.Error, key: "An_object_literal_cannot_have_multiple_get_Slashset_accessors_with_the_same_name_1118", message: "An object literal cannot have multiple get/set accessors with the same name." },
        An_object_literal_cannot_have_property_and_accessor_with_the_same_name: { code: 1119, category: ts.DiagnosticCategory.Error, key: "An_object_literal_cannot_have_property_and_accessor_with_the_same_name_1119", message: "An object literal cannot have property and accessor with the same name." },
        An_export_assignment_cannot_have_modifiers: { code: 1120, category: ts.DiagnosticCategory.Error, key: "An_export_assignment_cannot_have_modifiers_1120", message: "An export assignment cannot have modifiers." },
        Octal_literals_are_not_allowed_in_strict_mode: { code: 1121, category: ts.DiagnosticCategory.Error, key: "Octal_literals_are_not_allowed_in_strict_mode_1121", message: "Octal literals are not allowed in strict mode." },
        A_tuple_type_element_list_cannot_be_empty: { code: 1122, category: ts.DiagnosticCategory.Error, key: "A_tuple_type_element_list_cannot_be_empty_1122", message: "A tuple type element list cannot be empty." },
        Variable_declaration_list_cannot_be_empty: { code: 1123, category: ts.DiagnosticCategory.Error, key: "Variable_declaration_list_cannot_be_empty_1123", message: "Variable declaration list cannot be empty." },
        Digit_expected: { code: 1124, category: ts.DiagnosticCategory.Error, key: "Digit_expected_1124", message: "Digit expected." },
        Hexadecimal_digit_expected: { code: 1125, category: ts.DiagnosticCategory.Error, key: "Hexadecimal_digit_expected_1125", message: "Hexadecimal digit expected." },
        Unexpected_end_of_text: { code: 1126, category: ts.DiagnosticCategory.Error, key: "Unexpected_end_of_text_1126", message: "Unexpected end of text." },
        Invalid_character: { code: 1127, category: ts.DiagnosticCategory.Error, key: "Invalid_character_1127", message: "Invalid character." },
        Declaration_or_statement_expected: { code: 1128, category: ts.DiagnosticCategory.Error, key: "Declaration_or_statement_expected_1128", message: "Declaration or statement expected." },
        Statement_expected: { code: 1129, category: ts.DiagnosticCategory.Error, key: "Statement_expected_1129", message: "Statement expected." },
        case_or_default_expected: { code: 1130, category: ts.DiagnosticCategory.Error, key: "case_or_default_expected_1130", message: "'case' or 'default' expected." },
        Property_or_signature_expected: { code: 1131, category: ts.DiagnosticCategory.Error, key: "Property_or_signature_expected_1131", message: "Property or signature expected." },
        Enum_member_expected: { code: 1132, category: ts.DiagnosticCategory.Error, key: "Enum_member_expected_1132", message: "Enum member expected." },
        Variable_declaration_expected: { code: 1134, category: ts.DiagnosticCategory.Error, key: "Variable_declaration_expected_1134", message: "Variable declaration expected." },
        Argument_expression_expected: { code: 1135, category: ts.DiagnosticCategory.Error, key: "Argument_expression_expected_1135", message: "Argument expression expected." },
        Property_assignment_expected: { code: 1136, category: ts.DiagnosticCategory.Error, key: "Property_assignment_expected_1136", message: "Property assignment expected." },
        Expression_or_comma_expected: { code: 1137, category: ts.DiagnosticCategory.Error, key: "Expression_or_comma_expected_1137", message: "Expression or comma expected." },
        Parameter_declaration_expected: { code: 1138, category: ts.DiagnosticCategory.Error, key: "Parameter_declaration_expected_1138", message: "Parameter declaration expected." },
        Type_parameter_declaration_expected: { code: 1139, category: ts.DiagnosticCategory.Error, key: "Type_parameter_declaration_expected_1139", message: "Type parameter declaration expected." },
        Type_argument_expected: { code: 1140, category: ts.DiagnosticCategory.Error, key: "Type_argument_expected_1140", message: "Type argument expected." },
        String_literal_expected: { code: 1141, category: ts.DiagnosticCategory.Error, key: "String_literal_expected_1141", message: "String literal expected." },
        Line_break_not_permitted_here: { code: 1142, category: ts.DiagnosticCategory.Error, key: "Line_break_not_permitted_here_1142", message: "Line break not permitted here." },
        or_expected: { code: 1144, category: ts.DiagnosticCategory.Error, key: "or_expected_1144", message: "'{' or ';' expected." },
        Declaration_expected: { code: 1146, category: ts.DiagnosticCategory.Error, key: "Declaration_expected_1146", message: "Declaration expected." },
        Import_declarations_in_a_namespace_cannot_reference_a_module: { code: 1147, category: ts.DiagnosticCategory.Error, key: "Import_declarations_in_a_namespace_cannot_reference_a_module_1147", message: "Import declarations in a namespace cannot reference a module." },
        Cannot_compile_modules_unless_the_module_flag_is_provided_with_a_valid_module_type_Consider_setting_the_module_compiler_option_in_a_tsconfig_json_file: { code: 1148, category: ts.DiagnosticCategory.Error, key: "Cannot_compile_modules_unless_the_module_flag_is_provided_with_a_valid_module_type_Consider_setting__1148", message: "Cannot compile modules unless the '--module' flag is provided with a valid module type. Consider setting the 'module' compiler option in a 'tsconfig.json' file." },
        File_name_0_differs_from_already_included_file_name_1_only_in_casing: { code: 1149, category: ts.DiagnosticCategory.Error, key: "File_name_0_differs_from_already_included_file_name_1_only_in_casing_1149", message: "File name '{0}' differs from already included file name '{1}' only in casing" },
        new_T_cannot_be_used_to_create_an_array_Use_new_Array_T_instead: { code: 1150, category: ts.DiagnosticCategory.Error, key: "new_T_cannot_be_used_to_create_an_array_Use_new_Array_T_instead_1150", message: "'new T[]' cannot be used to create an array. Use 'new Array<T>()' instead." },
        const_declarations_must_be_initialized: { code: 1155, category: ts.DiagnosticCategory.Error, key: "const_declarations_must_be_initialized_1155", message: "'const' declarations must be initialized" },
        const_declarations_can_only_be_declared_inside_a_block: { code: 1156, category: ts.DiagnosticCategory.Error, key: "const_declarations_can_only_be_declared_inside_a_block_1156", message: "'const' declarations can only be declared inside a block." },
        let_declarations_can_only_be_declared_inside_a_block: { code: 1157, category: ts.DiagnosticCategory.Error, key: "let_declarations_can_only_be_declared_inside_a_block_1157", message: "'let' declarations can only be declared inside a block." },
        Unterminated_template_literal: { code: 1160, category: ts.DiagnosticCategory.Error, key: "Unterminated_template_literal_1160", message: "Unterminated template literal." },
        Unterminated_regular_expression_literal: { code: 1161, category: ts.DiagnosticCategory.Error, key: "Unterminated_regular_expression_literal_1161", message: "Unterminated regular expression literal." },
        An_object_member_cannot_be_declared_optional: { code: 1162, category: ts.DiagnosticCategory.Error, key: "An_object_member_cannot_be_declared_optional_1162", message: "An object member cannot be declared optional." },
        A_yield_expression_is_only_allowed_in_a_generator_body: { code: 1163, category: ts.DiagnosticCategory.Error, key: "A_yield_expression_is_only_allowed_in_a_generator_body_1163", message: "A 'yield' expression is only allowed in a generator body." },
        Computed_property_names_are_not_allowed_in_enums: { code: 1164, category: ts.DiagnosticCategory.Error, key: "Computed_property_names_are_not_allowed_in_enums_1164", message: "Computed property names are not allowed in enums." },
        A_computed_property_name_in_an_ambient_context_must_directly_refer_to_a_built_in_symbol: { code: 1165, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_in_an_ambient_context_must_directly_refer_to_a_built_in_symbol_1165", message: "A computed property name in an ambient context must directly refer to a built-in symbol." },
        A_computed_property_name_in_a_class_property_declaration_must_directly_refer_to_a_built_in_symbol: { code: 1166, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_in_a_class_property_declaration_must_directly_refer_to_a_built_in_symbol_1166", message: "A computed property name in a class property declaration must directly refer to a built-in symbol." },
        A_computed_property_name_in_a_method_overload_must_directly_refer_to_a_built_in_symbol: { code: 1168, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_in_a_method_overload_must_directly_refer_to_a_built_in_symbol_1168", message: "A computed property name in a method overload must directly refer to a built-in symbol." },
        A_computed_property_name_in_an_interface_must_directly_refer_to_a_built_in_symbol: { code: 1169, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_in_an_interface_must_directly_refer_to_a_built_in_symbol_1169", message: "A computed property name in an interface must directly refer to a built-in symbol." },
        A_computed_property_name_in_a_type_literal_must_directly_refer_to_a_built_in_symbol: { code: 1170, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_in_a_type_literal_must_directly_refer_to_a_built_in_symbol_1170", message: "A computed property name in a type literal must directly refer to a built-in symbol." },
        A_comma_expression_is_not_allowed_in_a_computed_property_name: { code: 1171, category: ts.DiagnosticCategory.Error, key: "A_comma_expression_is_not_allowed_in_a_computed_property_name_1171", message: "A comma expression is not allowed in a computed property name." },
        extends_clause_already_seen: { code: 1172, category: ts.DiagnosticCategory.Error, key: "extends_clause_already_seen_1172", message: "'extends' clause already seen." },
        extends_clause_must_precede_implements_clause: { code: 1173, category: ts.DiagnosticCategory.Error, key: "extends_clause_must_precede_implements_clause_1173", message: "'extends' clause must precede 'implements' clause." },
        Classes_can_only_extend_a_single_class: { code: 1174, category: ts.DiagnosticCategory.Error, key: "Classes_can_only_extend_a_single_class_1174", message: "Classes can only extend a single class." },
        implements_clause_already_seen: { code: 1175, category: ts.DiagnosticCategory.Error, key: "implements_clause_already_seen_1175", message: "'implements' clause already seen." },
        Interface_declaration_cannot_have_implements_clause: { code: 1176, category: ts.DiagnosticCategory.Error, key: "Interface_declaration_cannot_have_implements_clause_1176", message: "Interface declaration cannot have 'implements' clause." },
        Binary_digit_expected: { code: 1177, category: ts.DiagnosticCategory.Error, key: "Binary_digit_expected_1177", message: "Binary digit expected." },
        Octal_digit_expected: { code: 1178, category: ts.DiagnosticCategory.Error, key: "Octal_digit_expected_1178", message: "Octal digit expected." },
        Unexpected_token_expected: { code: 1179, category: ts.DiagnosticCategory.Error, key: "Unexpected_token_expected_1179", message: "Unexpected token. '{' expected." },
        Property_destructuring_pattern_expected: { code: 1180, category: ts.DiagnosticCategory.Error, key: "Property_destructuring_pattern_expected_1180", message: "Property destructuring pattern expected." },
        Array_element_destructuring_pattern_expected: { code: 1181, category: ts.DiagnosticCategory.Error, key: "Array_element_destructuring_pattern_expected_1181", message: "Array element destructuring pattern expected." },
        A_destructuring_declaration_must_have_an_initializer: { code: 1182, category: ts.DiagnosticCategory.Error, key: "A_destructuring_declaration_must_have_an_initializer_1182", message: "A destructuring declaration must have an initializer." },
        An_implementation_cannot_be_declared_in_ambient_contexts: { code: 1183, category: ts.DiagnosticCategory.Error, key: "An_implementation_cannot_be_declared_in_ambient_contexts_1183", message: "An implementation cannot be declared in ambient contexts." },
        Modifiers_cannot_appear_here: { code: 1184, category: ts.DiagnosticCategory.Error, key: "Modifiers_cannot_appear_here_1184", message: "Modifiers cannot appear here." },
        Merge_conflict_marker_encountered: { code: 1185, category: ts.DiagnosticCategory.Error, key: "Merge_conflict_marker_encountered_1185", message: "Merge conflict marker encountered." },
        A_rest_element_cannot_have_an_initializer: { code: 1186, category: ts.DiagnosticCategory.Error, key: "A_rest_element_cannot_have_an_initializer_1186", message: "A rest element cannot have an initializer." },
        A_parameter_property_may_not_be_a_binding_pattern: { code: 1187, category: ts.DiagnosticCategory.Error, key: "A_parameter_property_may_not_be_a_binding_pattern_1187", message: "A parameter property may not be a binding pattern." },
        Only_a_single_variable_declaration_is_allowed_in_a_for_of_statement: { code: 1188, category: ts.DiagnosticCategory.Error, key: "Only_a_single_variable_declaration_is_allowed_in_a_for_of_statement_1188", message: "Only a single variable declaration is allowed in a 'for...of' statement." },
        The_variable_declaration_of_a_for_in_statement_cannot_have_an_initializer: { code: 1189, category: ts.DiagnosticCategory.Error, key: "The_variable_declaration_of_a_for_in_statement_cannot_have_an_initializer_1189", message: "The variable declaration of a 'for...in' statement cannot have an initializer." },
        The_variable_declaration_of_a_for_of_statement_cannot_have_an_initializer: { code: 1190, category: ts.DiagnosticCategory.Error, key: "The_variable_declaration_of_a_for_of_statement_cannot_have_an_initializer_1190", message: "The variable declaration of a 'for...of' statement cannot have an initializer." },
        An_import_declaration_cannot_have_modifiers: { code: 1191, category: ts.DiagnosticCategory.Error, key: "An_import_declaration_cannot_have_modifiers_1191", message: "An import declaration cannot have modifiers." },
        Module_0_has_no_default_export: { code: 1192, category: ts.DiagnosticCategory.Error, key: "Module_0_has_no_default_export_1192", message: "Module '{0}' has no default export." },
        An_export_declaration_cannot_have_modifiers: { code: 1193, category: ts.DiagnosticCategory.Error, key: "An_export_declaration_cannot_have_modifiers_1193", message: "An export declaration cannot have modifiers." },
        Export_declarations_are_not_permitted_in_a_namespace: { code: 1194, category: ts.DiagnosticCategory.Error, key: "Export_declarations_are_not_permitted_in_a_namespace_1194", message: "Export declarations are not permitted in a namespace." },
        Catch_clause_variable_name_must_be_an_identifier: { code: 1195, category: ts.DiagnosticCategory.Error, key: "Catch_clause_variable_name_must_be_an_identifier_1195", message: "Catch clause variable name must be an identifier." },
        Catch_clause_variable_cannot_have_a_type_annotation: { code: 1196, category: ts.DiagnosticCategory.Error, key: "Catch_clause_variable_cannot_have_a_type_annotation_1196", message: "Catch clause variable cannot have a type annotation." },
        Catch_clause_variable_cannot_have_an_initializer: { code: 1197, category: ts.DiagnosticCategory.Error, key: "Catch_clause_variable_cannot_have_an_initializer_1197", message: "Catch clause variable cannot have an initializer." },
        An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive: { code: 1198, category: ts.DiagnosticCategory.Error, key: "An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive_1198", message: "An extended Unicode escape value must be between 0x0 and 0x10FFFF inclusive." },
        Unterminated_Unicode_escape_sequence: { code: 1199, category: ts.DiagnosticCategory.Error, key: "Unterminated_Unicode_escape_sequence_1199", message: "Unterminated Unicode escape sequence." },
        Line_terminator_not_permitted_before_arrow: { code: 1200, category: ts.DiagnosticCategory.Error, key: "Line_terminator_not_permitted_before_arrow_1200", message: "Line terminator not permitted before arrow." },
        Import_assignment_cannot_be_used_when_targeting_ECMAScript_6_modules_Consider_using_import_Asterisk_as_ns_from_mod_import_a_from_mod_import_d_from_mod_or_another_module_format_instead: { code: 1202, category: ts.DiagnosticCategory.Error, key: "Import_assignment_cannot_be_used_when_targeting_ECMAScript_6_modules_Consider_using_import_Asterisk__1202", message: "Import assignment cannot be used when targeting ECMAScript 6 modules. Consider using 'import * as ns from \"mod\"', 'import {a} from \"mod\"', 'import d from \"mod\"', or another module format instead." },
        Export_assignment_cannot_be_used_when_targeting_ECMAScript_6_modules_Consider_using_export_default_or_another_module_format_instead: { code: 1203, category: ts.DiagnosticCategory.Error, key: "Export_assignment_cannot_be_used_when_targeting_ECMAScript_6_modules_Consider_using_export_default_o_1203", message: "Export assignment cannot be used when targeting ECMAScript 6 modules. Consider using 'export default' or another module format instead." },
        Cannot_compile_modules_into_es2015_when_targeting_ES5_or_lower: { code: 1204, category: ts.DiagnosticCategory.Error, key: "Cannot_compile_modules_into_es2015_when_targeting_ES5_or_lower_1204", message: "Cannot compile modules into 'es2015' when targeting 'ES5' or lower." },
        Decorators_are_not_valid_here: { code: 1206, category: ts.DiagnosticCategory.Error, key: "Decorators_are_not_valid_here_1206", message: "Decorators are not valid here." },
        Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name: { code: 1207, category: ts.DiagnosticCategory.Error, key: "Decorators_cannot_be_applied_to_multiple_get_Slashset_accessors_of_the_same_name_1207", message: "Decorators cannot be applied to multiple get/set accessors of the same name." },
        Cannot_compile_namespaces_when_the_isolatedModules_flag_is_provided: { code: 1208, category: ts.DiagnosticCategory.Error, key: "Cannot_compile_namespaces_when_the_isolatedModules_flag_is_provided_1208", message: "Cannot compile namespaces when the '--isolatedModules' flag is provided." },
        Ambient_const_enums_are_not_allowed_when_the_isolatedModules_flag_is_provided: { code: 1209, category: ts.DiagnosticCategory.Error, key: "Ambient_const_enums_are_not_allowed_when_the_isolatedModules_flag_is_provided_1209", message: "Ambient const enums are not allowed when the '--isolatedModules' flag is provided." },
        Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode: { code: 1210, category: ts.DiagnosticCategory.Error, key: "Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode_1210", message: "Invalid use of '{0}'. Class definitions are automatically in strict mode." },
        A_class_declaration_without_the_default_modifier_must_have_a_name: { code: 1211, category: ts.DiagnosticCategory.Error, key: "A_class_declaration_without_the_default_modifier_must_have_a_name_1211", message: "A class declaration without the 'default' modifier must have a name" },
        Identifier_expected_0_is_a_reserved_word_in_strict_mode: { code: 1212, category: ts.DiagnosticCategory.Error, key: "Identifier_expected_0_is_a_reserved_word_in_strict_mode_1212", message: "Identifier expected. '{0}' is a reserved word in strict mode" },
        Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_strict_mode: { code: 1213, category: ts.DiagnosticCategory.Error, key: "Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_stric_1213", message: "Identifier expected. '{0}' is a reserved word in strict mode. Class definitions are automatically in strict mode." },
        Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode: { code: 1214, category: ts.DiagnosticCategory.Error, key: "Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode_1214", message: "Identifier expected. '{0}' is a reserved word in strict mode. Modules are automatically in strict mode." },
        Invalid_use_of_0_Modules_are_automatically_in_strict_mode: { code: 1215, category: ts.DiagnosticCategory.Error, key: "Invalid_use_of_0_Modules_are_automatically_in_strict_mode_1215", message: "Invalid use of '{0}'. Modules are automatically in strict mode." },
        Export_assignment_is_not_supported_when_module_flag_is_system: { code: 1218, category: ts.DiagnosticCategory.Error, key: "Export_assignment_is_not_supported_when_module_flag_is_system_1218", message: "Export assignment is not supported when '--module' flag is 'system'." },
        Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_the_experimentalDecorators_option_to_remove_this_warning: { code: 1219, category: ts.DiagnosticCategory.Error, key: "Experimental_support_for_decorators_is_a_feature_that_is_subject_to_change_in_a_future_release_Set_t_1219", message: "Experimental support for decorators is a feature that is subject to change in a future release. Set the 'experimentalDecorators' option to remove this warning." },
        Generators_are_only_available_when_targeting_ECMAScript_6_or_higher: { code: 1220, category: ts.DiagnosticCategory.Error, key: "Generators_are_only_available_when_targeting_ECMAScript_6_or_higher_1220", message: "Generators are only available when targeting ECMAScript 6 or higher." },
        Generators_are_not_allowed_in_an_ambient_context: { code: 1221, category: ts.DiagnosticCategory.Error, key: "Generators_are_not_allowed_in_an_ambient_context_1221", message: "Generators are not allowed in an ambient context." },
        An_overload_signature_cannot_be_declared_as_a_generator: { code: 1222, category: ts.DiagnosticCategory.Error, key: "An_overload_signature_cannot_be_declared_as_a_generator_1222", message: "An overload signature cannot be declared as a generator." },
        _0_tag_already_specified: { code: 1223, category: ts.DiagnosticCategory.Error, key: "_0_tag_already_specified_1223", message: "'{0}' tag already specified." },
        Signature_0_must_have_a_type_predicate: { code: 1224, category: ts.DiagnosticCategory.Error, key: "Signature_0_must_have_a_type_predicate_1224", message: "Signature '{0}' must have a type predicate." },
        Cannot_find_parameter_0: { code: 1225, category: ts.DiagnosticCategory.Error, key: "Cannot_find_parameter_0_1225", message: "Cannot find parameter '{0}'." },
        Type_predicate_0_is_not_assignable_to_1: { code: 1226, category: ts.DiagnosticCategory.Error, key: "Type_predicate_0_is_not_assignable_to_1_1226", message: "Type predicate '{0}' is not assignable to '{1}'." },
        Parameter_0_is_not_in_the_same_position_as_parameter_1: { code: 1227, category: ts.DiagnosticCategory.Error, key: "Parameter_0_is_not_in_the_same_position_as_parameter_1_1227", message: "Parameter '{0}' is not in the same position as parameter '{1}'." },
        A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods: { code: 1228, category: ts.DiagnosticCategory.Error, key: "A_type_predicate_is_only_allowed_in_return_type_position_for_functions_and_methods_1228", message: "A type predicate is only allowed in return type position for functions and methods." },
        A_type_predicate_cannot_reference_a_rest_parameter: { code: 1229, category: ts.DiagnosticCategory.Error, key: "A_type_predicate_cannot_reference_a_rest_parameter_1229", message: "A type predicate cannot reference a rest parameter." },
        A_type_predicate_cannot_reference_element_0_in_a_binding_pattern: { code: 1230, category: ts.DiagnosticCategory.Error, key: "A_type_predicate_cannot_reference_element_0_in_a_binding_pattern_1230", message: "A type predicate cannot reference element '{0}' in a binding pattern." },
        An_export_assignment_can_only_be_used_in_a_module: { code: 1231, category: ts.DiagnosticCategory.Error, key: "An_export_assignment_can_only_be_used_in_a_module_1231", message: "An export assignment can only be used in a module." },
        An_import_declaration_can_only_be_used_in_a_namespace_or_module: { code: 1232, category: ts.DiagnosticCategory.Error, key: "An_import_declaration_can_only_be_used_in_a_namespace_or_module_1232", message: "An import declaration can only be used in a namespace or module." },
        An_export_declaration_can_only_be_used_in_a_module: { code: 1233, category: ts.DiagnosticCategory.Error, key: "An_export_declaration_can_only_be_used_in_a_module_1233", message: "An export declaration can only be used in a module." },
        An_ambient_module_declaration_is_only_allowed_at_the_top_level_in_a_file: { code: 1234, category: ts.DiagnosticCategory.Error, key: "An_ambient_module_declaration_is_only_allowed_at_the_top_level_in_a_file_1234", message: "An ambient module declaration is only allowed at the top level in a file." },
        A_namespace_declaration_is_only_allowed_in_a_namespace_or_module: { code: 1235, category: ts.DiagnosticCategory.Error, key: "A_namespace_declaration_is_only_allowed_in_a_namespace_or_module_1235", message: "A namespace declaration is only allowed in a namespace or module." },
        The_return_type_of_a_property_decorator_function_must_be_either_void_or_any: { code: 1236, category: ts.DiagnosticCategory.Error, key: "The_return_type_of_a_property_decorator_function_must_be_either_void_or_any_1236", message: "The return type of a property decorator function must be either 'void' or 'any'." },
        The_return_type_of_a_parameter_decorator_function_must_be_either_void_or_any: { code: 1237, category: ts.DiagnosticCategory.Error, key: "The_return_type_of_a_parameter_decorator_function_must_be_either_void_or_any_1237", message: "The return type of a parameter decorator function must be either 'void' or 'any'." },
        Unable_to_resolve_signature_of_class_decorator_when_called_as_an_expression: { code: 1238, category: ts.DiagnosticCategory.Error, key: "Unable_to_resolve_signature_of_class_decorator_when_called_as_an_expression_1238", message: "Unable to resolve signature of class decorator when called as an expression." },
        Unable_to_resolve_signature_of_parameter_decorator_when_called_as_an_expression: { code: 1239, category: ts.DiagnosticCategory.Error, key: "Unable_to_resolve_signature_of_parameter_decorator_when_called_as_an_expression_1239", message: "Unable to resolve signature of parameter decorator when called as an expression." },
        Unable_to_resolve_signature_of_property_decorator_when_called_as_an_expression: { code: 1240, category: ts.DiagnosticCategory.Error, key: "Unable_to_resolve_signature_of_property_decorator_when_called_as_an_expression_1240", message: "Unable to resolve signature of property decorator when called as an expression." },
        Unable_to_resolve_signature_of_method_decorator_when_called_as_an_expression: { code: 1241, category: ts.DiagnosticCategory.Error, key: "Unable_to_resolve_signature_of_method_decorator_when_called_as_an_expression_1241", message: "Unable to resolve signature of method decorator when called as an expression." },
        abstract_modifier_can_only_appear_on_a_class_method_or_property_declaration: { code: 1242, category: ts.DiagnosticCategory.Error, key: "abstract_modifier_can_only_appear_on_a_class_method_or_property_declaration_1242", message: "'abstract' modifier can only appear on a class, method, or property declaration." },
        _0_modifier_cannot_be_used_with_1_modifier: { code: 1243, category: ts.DiagnosticCategory.Error, key: "_0_modifier_cannot_be_used_with_1_modifier_1243", message: "'{0}' modifier cannot be used with '{1}' modifier." },
        Abstract_methods_can_only_appear_within_an_abstract_class: { code: 1244, category: ts.DiagnosticCategory.Error, key: "Abstract_methods_can_only_appear_within_an_abstract_class_1244", message: "Abstract methods can only appear within an abstract class." },
        Method_0_cannot_have_an_implementation_because_it_is_marked_abstract: { code: 1245, category: ts.DiagnosticCategory.Error, key: "Method_0_cannot_have_an_implementation_because_it_is_marked_abstract_1245", message: "Method '{0}' cannot have an implementation because it is marked abstract." },
        An_interface_property_cannot_have_an_initializer: { code: 1246, category: ts.DiagnosticCategory.Error, key: "An_interface_property_cannot_have_an_initializer_1246", message: "An interface property cannot have an initializer." },
        A_type_literal_property_cannot_have_an_initializer: { code: 1247, category: ts.DiagnosticCategory.Error, key: "A_type_literal_property_cannot_have_an_initializer_1247", message: "A type literal property cannot have an initializer." },
        A_class_member_cannot_have_the_0_keyword: { code: 1248, category: ts.DiagnosticCategory.Error, key: "A_class_member_cannot_have_the_0_keyword_1248", message: "A class member cannot have the '{0}' keyword." },
        A_decorator_can_only_decorate_a_method_implementation_not_an_overload: { code: 1249, category: ts.DiagnosticCategory.Error, key: "A_decorator_can_only_decorate_a_method_implementation_not_an_overload_1249", message: "A decorator can only decorate a method implementation, not an overload." },
        Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5: { code: 1250, category: ts.DiagnosticCategory.Error, key: "Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_1250", message: "Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'." },
        Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Class_definitions_are_automatically_in_strict_mode: { code: 1251, category: ts.DiagnosticCategory.Error, key: "Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Class_d_1251", message: "Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'. Class definitions are automatically in strict mode." },
        Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Modules_are_automatically_in_strict_mode: { code: 1252, category: ts.DiagnosticCategory.Error, key: "Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Modules_1252", message: "Function declarations are not allowed inside blocks in strict mode when targeting 'ES3' or 'ES5'. Modules are automatically in strict mode." },
        with_statements_are_not_allowed_in_an_async_function_block: { code: 1300, category: ts.DiagnosticCategory.Error, key: "with_statements_are_not_allowed_in_an_async_function_block_1300", message: "'with' statements are not allowed in an async function block." },
        await_expression_is_only_allowed_within_an_async_function: { code: 1308, category: ts.DiagnosticCategory.Error, key: "await_expression_is_only_allowed_within_an_async_function_1308", message: "'await' expression is only allowed within an async function." },
        Async_functions_are_only_available_when_targeting_ECMAScript_6_and_higher: { code: 1311, category: ts.DiagnosticCategory.Error, key: "Async_functions_are_only_available_when_targeting_ECMAScript_6_and_higher_1311", message: "Async functions are only available when targeting ECMAScript 6 and higher." },
        can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment: { code: 1312, category: ts.DiagnosticCategory.Error, key: "can_only_be_used_in_an_object_literal_property_inside_a_destructuring_assignment_1312", message: "'=' can only be used in an object literal property inside a destructuring assignment." },
        The_body_of_an_if_statement_cannot_be_the_empty_statement: { code: 1313, category: ts.DiagnosticCategory.Error, key: "The_body_of_an_if_statement_cannot_be_the_empty_statement_1313", message: "The body of an 'if' statement cannot be the empty statement." },
        Global_module_exports_may_only_appear_in_module_files: { code: 1314, category: ts.DiagnosticCategory.Error, key: "Global_module_exports_may_only_appear_in_module_files_1314", message: "Global module exports may only appear in module files." },
        Global_module_exports_may_only_appear_in_declaration_files: { code: 1315, category: ts.DiagnosticCategory.Error, key: "Global_module_exports_may_only_appear_in_declaration_files_1315", message: "Global module exports may only appear in declaration files." },
        Global_module_exports_may_only_appear_at_top_level: { code: 1316, category: ts.DiagnosticCategory.Error, key: "Global_module_exports_may_only_appear_at_top_level_1316", message: "Global module exports may only appear at top level." },
        Duplicate_identifier_0: { code: 2300, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_0_2300", message: "Duplicate identifier '{0}'." },
        Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor: { code: 2301, category: ts.DiagnosticCategory.Error, key: "Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor_2301", message: "Initializer of instance member variable '{0}' cannot reference identifier '{1}' declared in the constructor." },
        Static_members_cannot_reference_class_type_parameters: { code: 2302, category: ts.DiagnosticCategory.Error, key: "Static_members_cannot_reference_class_type_parameters_2302", message: "Static members cannot reference class type parameters." },
        Circular_definition_of_import_alias_0: { code: 2303, category: ts.DiagnosticCategory.Error, key: "Circular_definition_of_import_alias_0_2303", message: "Circular definition of import alias '{0}'." },
        Cannot_find_name_0: { code: 2304, category: ts.DiagnosticCategory.Error, key: "Cannot_find_name_0_2304", message: "Cannot find name '{0}'." },
        Module_0_has_no_exported_member_1: { code: 2305, category: ts.DiagnosticCategory.Error, key: "Module_0_has_no_exported_member_1_2305", message: "Module '{0}' has no exported member '{1}'." },
        File_0_is_not_a_module: { code: 2306, category: ts.DiagnosticCategory.Error, key: "File_0_is_not_a_module_2306", message: "File '{0}' is not a module." },
        Cannot_find_module_0: { code: 2307, category: ts.DiagnosticCategory.Error, key: "Cannot_find_module_0_2307", message: "Cannot find module '{0}'." },
        Module_0_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambiguity: { code: 2308, category: ts.DiagnosticCategory.Error, key: "Module_0_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambig_2308", message: "Module {0} has already exported a member named '{1}'. Consider explicitly re-exporting to resolve the ambiguity." },
        An_export_assignment_cannot_be_used_in_a_module_with_other_exported_elements: { code: 2309, category: ts.DiagnosticCategory.Error, key: "An_export_assignment_cannot_be_used_in_a_module_with_other_exported_elements_2309", message: "An export assignment cannot be used in a module with other exported elements." },
        Type_0_recursively_references_itself_as_a_base_type: { code: 2310, category: ts.DiagnosticCategory.Error, key: "Type_0_recursively_references_itself_as_a_base_type_2310", message: "Type '{0}' recursively references itself as a base type." },
        A_class_may_only_extend_another_class: { code: 2311, category: ts.DiagnosticCategory.Error, key: "A_class_may_only_extend_another_class_2311", message: "A class may only extend another class." },
        An_interface_may_only_extend_a_class_or_another_interface: { code: 2312, category: ts.DiagnosticCategory.Error, key: "An_interface_may_only_extend_a_class_or_another_interface_2312", message: "An interface may only extend a class or another interface." },
        Type_parameter_0_has_a_circular_constraint: { code: 2313, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_has_a_circular_constraint_2313", message: "Type parameter '{0}' has a circular constraint." },
        Generic_type_0_requires_1_type_argument_s: { code: 2314, category: ts.DiagnosticCategory.Error, key: "Generic_type_0_requires_1_type_argument_s_2314", message: "Generic type '{0}' requires {1} type argument(s)." },
        Type_0_is_not_generic: { code: 2315, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_generic_2315", message: "Type '{0}' is not generic." },
        Global_type_0_must_be_a_class_or_interface_type: { code: 2316, category: ts.DiagnosticCategory.Error, key: "Global_type_0_must_be_a_class_or_interface_type_2316", message: "Global type '{0}' must be a class or interface type." },
        Global_type_0_must_have_1_type_parameter_s: { code: 2317, category: ts.DiagnosticCategory.Error, key: "Global_type_0_must_have_1_type_parameter_s_2317", message: "Global type '{0}' must have {1} type parameter(s)." },
        Cannot_find_global_type_0: { code: 2318, category: ts.DiagnosticCategory.Error, key: "Cannot_find_global_type_0_2318", message: "Cannot find global type '{0}'." },
        Named_property_0_of_types_1_and_2_are_not_identical: { code: 2319, category: ts.DiagnosticCategory.Error, key: "Named_property_0_of_types_1_and_2_are_not_identical_2319", message: "Named property '{0}' of types '{1}' and '{2}' are not identical." },
        Interface_0_cannot_simultaneously_extend_types_1_and_2: { code: 2320, category: ts.DiagnosticCategory.Error, key: "Interface_0_cannot_simultaneously_extend_types_1_and_2_2320", message: "Interface '{0}' cannot simultaneously extend types '{1}' and '{2}'." },
        Excessive_stack_depth_comparing_types_0_and_1: { code: 2321, category: ts.DiagnosticCategory.Error, key: "Excessive_stack_depth_comparing_types_0_and_1_2321", message: "Excessive stack depth comparing types '{0}' and '{1}'." },
        Type_0_is_not_assignable_to_type_1: { code: 2322, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_assignable_to_type_1_2322", message: "Type '{0}' is not assignable to type '{1}'." },
        Cannot_redeclare_exported_variable_0: { code: 2323, category: ts.DiagnosticCategory.Error, key: "Cannot_redeclare_exported_variable_0_2323", message: "Cannot redeclare exported variable '{0}'." },
        Property_0_is_missing_in_type_1: { code: 2324, category: ts.DiagnosticCategory.Error, key: "Property_0_is_missing_in_type_1_2324", message: "Property '{0}' is missing in type '{1}'." },
        Property_0_is_private_in_type_1_but_not_in_type_2: { code: 2325, category: ts.DiagnosticCategory.Error, key: "Property_0_is_private_in_type_1_but_not_in_type_2_2325", message: "Property '{0}' is private in type '{1}' but not in type '{2}'." },
        Types_of_property_0_are_incompatible: { code: 2326, category: ts.DiagnosticCategory.Error, key: "Types_of_property_0_are_incompatible_2326", message: "Types of property '{0}' are incompatible." },
        Property_0_is_optional_in_type_1_but_required_in_type_2: { code: 2327, category: ts.DiagnosticCategory.Error, key: "Property_0_is_optional_in_type_1_but_required_in_type_2_2327", message: "Property '{0}' is optional in type '{1}' but required in type '{2}'." },
        Types_of_parameters_0_and_1_are_incompatible: { code: 2328, category: ts.DiagnosticCategory.Error, key: "Types_of_parameters_0_and_1_are_incompatible_2328", message: "Types of parameters '{0}' and '{1}' are incompatible." },
        Index_signature_is_missing_in_type_0: { code: 2329, category: ts.DiagnosticCategory.Error, key: "Index_signature_is_missing_in_type_0_2329", message: "Index signature is missing in type '{0}'." },
        Index_signatures_are_incompatible: { code: 2330, category: ts.DiagnosticCategory.Error, key: "Index_signatures_are_incompatible_2330", message: "Index signatures are incompatible." },
        this_cannot_be_referenced_in_a_module_or_namespace_body: { code: 2331, category: ts.DiagnosticCategory.Error, key: "this_cannot_be_referenced_in_a_module_or_namespace_body_2331", message: "'this' cannot be referenced in a module or namespace body." },
        this_cannot_be_referenced_in_current_location: { code: 2332, category: ts.DiagnosticCategory.Error, key: "this_cannot_be_referenced_in_current_location_2332", message: "'this' cannot be referenced in current location." },
        this_cannot_be_referenced_in_constructor_arguments: { code: 2333, category: ts.DiagnosticCategory.Error, key: "this_cannot_be_referenced_in_constructor_arguments_2333", message: "'this' cannot be referenced in constructor arguments." },
        this_cannot_be_referenced_in_a_static_property_initializer: { code: 2334, category: ts.DiagnosticCategory.Error, key: "this_cannot_be_referenced_in_a_static_property_initializer_2334", message: "'this' cannot be referenced in a static property initializer." },
        super_can_only_be_referenced_in_a_derived_class: { code: 2335, category: ts.DiagnosticCategory.Error, key: "super_can_only_be_referenced_in_a_derived_class_2335", message: "'super' can only be referenced in a derived class." },
        super_cannot_be_referenced_in_constructor_arguments: { code: 2336, category: ts.DiagnosticCategory.Error, key: "super_cannot_be_referenced_in_constructor_arguments_2336", message: "'super' cannot be referenced in constructor arguments." },
        Super_calls_are_not_permitted_outside_constructors_or_in_nested_functions_inside_constructors: { code: 2337, category: ts.DiagnosticCategory.Error, key: "Super_calls_are_not_permitted_outside_constructors_or_in_nested_functions_inside_constructors_2337", message: "Super calls are not permitted outside constructors or in nested functions inside constructors." },
        super_property_access_is_permitted_only_in_a_constructor_member_function_or_member_accessor_of_a_derived_class: { code: 2338, category: ts.DiagnosticCategory.Error, key: "super_property_access_is_permitted_only_in_a_constructor_member_function_or_member_accessor_of_a_der_2338", message: "'super' property access is permitted only in a constructor, member function, or member accessor of a derived class." },
        Property_0_does_not_exist_on_type_1: { code: 2339, category: ts.DiagnosticCategory.Error, key: "Property_0_does_not_exist_on_type_1_2339", message: "Property '{0}' does not exist on type '{1}'." },
        Only_public_and_protected_methods_of_the_base_class_are_accessible_via_the_super_keyword: { code: 2340, category: ts.DiagnosticCategory.Error, key: "Only_public_and_protected_methods_of_the_base_class_are_accessible_via_the_super_keyword_2340", message: "Only public and protected methods of the base class are accessible via the 'super' keyword." },
        Property_0_is_private_and_only_accessible_within_class_1: { code: 2341, category: ts.DiagnosticCategory.Error, key: "Property_0_is_private_and_only_accessible_within_class_1_2341", message: "Property '{0}' is private and only accessible within class '{1}'." },
        An_index_expression_argument_must_be_of_type_string_number_symbol_or_any: { code: 2342, category: ts.DiagnosticCategory.Error, key: "An_index_expression_argument_must_be_of_type_string_number_symbol_or_any_2342", message: "An index expression argument must be of type 'string', 'number', 'symbol', or 'any'." },
        Type_0_does_not_satisfy_the_constraint_1: { code: 2344, category: ts.DiagnosticCategory.Error, key: "Type_0_does_not_satisfy_the_constraint_1_2344", message: "Type '{0}' does not satisfy the constraint '{1}'." },
        Argument_of_type_0_is_not_assignable_to_parameter_of_type_1: { code: 2345, category: ts.DiagnosticCategory.Error, key: "Argument_of_type_0_is_not_assignable_to_parameter_of_type_1_2345", message: "Argument of type '{0}' is not assignable to parameter of type '{1}'." },
        Supplied_parameters_do_not_match_any_signature_of_call_target: { code: 2346, category: ts.DiagnosticCategory.Error, key: "Supplied_parameters_do_not_match_any_signature_of_call_target_2346", message: "Supplied parameters do not match any signature of call target." },
        Untyped_function_calls_may_not_accept_type_arguments: { code: 2347, category: ts.DiagnosticCategory.Error, key: "Untyped_function_calls_may_not_accept_type_arguments_2347", message: "Untyped function calls may not accept type arguments." },
        Value_of_type_0_is_not_callable_Did_you_mean_to_include_new: { code: 2348, category: ts.DiagnosticCategory.Error, key: "Value_of_type_0_is_not_callable_Did_you_mean_to_include_new_2348", message: "Value of type '{0}' is not callable. Did you mean to include 'new'?" },
        Cannot_invoke_an_expression_whose_type_lacks_a_call_signature: { code: 2349, category: ts.DiagnosticCategory.Error, key: "Cannot_invoke_an_expression_whose_type_lacks_a_call_signature_2349", message: "Cannot invoke an expression whose type lacks a call signature." },
        Only_a_void_function_can_be_called_with_the_new_keyword: { code: 2350, category: ts.DiagnosticCategory.Error, key: "Only_a_void_function_can_be_called_with_the_new_keyword_2350", message: "Only a void function can be called with the 'new' keyword." },
        Cannot_use_new_with_an_expression_whose_type_lacks_a_call_or_construct_signature: { code: 2351, category: ts.DiagnosticCategory.Error, key: "Cannot_use_new_with_an_expression_whose_type_lacks_a_call_or_construct_signature_2351", message: "Cannot use 'new' with an expression whose type lacks a call or construct signature." },
        Type_0_cannot_be_converted_to_type_1: { code: 2352, category: ts.DiagnosticCategory.Error, key: "Type_0_cannot_be_converted_to_type_1_2352", message: "Type '{0}' cannot be converted to type '{1}'." },
        Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1: { code: 2353, category: ts.DiagnosticCategory.Error, key: "Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1_2353", message: "Object literal may only specify known properties, and '{0}' does not exist in type '{1}'." },
        No_best_common_type_exists_among_return_expressions: { code: 2354, category: ts.DiagnosticCategory.Error, key: "No_best_common_type_exists_among_return_expressions_2354", message: "No best common type exists among return expressions." },
        A_function_whose_declared_type_is_neither_void_nor_any_must_return_a_value: { code: 2355, category: ts.DiagnosticCategory.Error, key: "A_function_whose_declared_type_is_neither_void_nor_any_must_return_a_value_2355", message: "A function whose declared type is neither 'void' nor 'any' must return a value." },
        An_arithmetic_operand_must_be_of_type_any_number_or_an_enum_type: { code: 2356, category: ts.DiagnosticCategory.Error, key: "An_arithmetic_operand_must_be_of_type_any_number_or_an_enum_type_2356", message: "An arithmetic operand must be of type 'any', 'number' or an enum type." },
        The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_property_or_indexer: { code: 2357, category: ts.DiagnosticCategory.Error, key: "The_operand_of_an_increment_or_decrement_operator_must_be_a_variable_property_or_indexer_2357", message: "The operand of an increment or decrement operator must be a variable, property or indexer." },
        The_left_hand_side_of_an_instanceof_expression_must_be_of_type_any_an_object_type_or_a_type_parameter: { code: 2358, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_an_instanceof_expression_must_be_of_type_any_an_object_type_or_a_type_paramete_2358", message: "The left-hand side of an 'instanceof' expression must be of type 'any', an object type or a type parameter." },
        The_right_hand_side_of_an_instanceof_expression_must_be_of_type_any_or_of_a_type_assignable_to_the_Function_interface_type: { code: 2359, category: ts.DiagnosticCategory.Error, key: "The_right_hand_side_of_an_instanceof_expression_must_be_of_type_any_or_of_a_type_assignable_to_the_F_2359", message: "The right-hand side of an 'instanceof' expression must be of type 'any' or of a type assignable to the 'Function' interface type." },
        The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol: { code: 2360, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_an_in_expression_must_be_of_type_any_string_number_or_symbol_2360", message: "The left-hand side of an 'in' expression must be of type 'any', 'string', 'number', or 'symbol'." },
        The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter: { code: 2361, category: ts.DiagnosticCategory.Error, key: "The_right_hand_side_of_an_in_expression_must_be_of_type_any_an_object_type_or_a_type_parameter_2361", message: "The right-hand side of an 'in' expression must be of type 'any', an object type or a type parameter" },
        The_left_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type: { code: 2362, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type_2362", message: "The left-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type." },
        The_right_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type: { code: 2363, category: ts.DiagnosticCategory.Error, key: "The_right_hand_side_of_an_arithmetic_operation_must_be_of_type_any_number_or_an_enum_type_2363", message: "The right-hand side of an arithmetic operation must be of type 'any', 'number' or an enum type." },
        Invalid_left_hand_side_of_assignment_expression: { code: 2364, category: ts.DiagnosticCategory.Error, key: "Invalid_left_hand_side_of_assignment_expression_2364", message: "Invalid left-hand side of assignment expression." },
        Operator_0_cannot_be_applied_to_types_1_and_2: { code: 2365, category: ts.DiagnosticCategory.Error, key: "Operator_0_cannot_be_applied_to_types_1_and_2_2365", message: "Operator '{0}' cannot be applied to types '{1}' and '{2}'." },
        Function_lacks_ending_return_statement_and_return_type_does_not_include_undefined: { code: 2366, category: ts.DiagnosticCategory.Error, key: "Function_lacks_ending_return_statement_and_return_type_does_not_include_undefined_2366", message: "Function lacks ending return statement and return type does not include 'undefined'." },
        Type_parameter_name_cannot_be_0: { code: 2368, category: ts.DiagnosticCategory.Error, key: "Type_parameter_name_cannot_be_0_2368", message: "Type parameter name cannot be '{0}'" },
        A_parameter_property_is_only_allowed_in_a_constructor_implementation: { code: 2369, category: ts.DiagnosticCategory.Error, key: "A_parameter_property_is_only_allowed_in_a_constructor_implementation_2369", message: "A parameter property is only allowed in a constructor implementation." },
        A_rest_parameter_must_be_of_an_array_type: { code: 2370, category: ts.DiagnosticCategory.Error, key: "A_rest_parameter_must_be_of_an_array_type_2370", message: "A rest parameter must be of an array type." },
        A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation: { code: 2371, category: ts.DiagnosticCategory.Error, key: "A_parameter_initializer_is_only_allowed_in_a_function_or_constructor_implementation_2371", message: "A parameter initializer is only allowed in a function or constructor implementation." },
        Parameter_0_cannot_be_referenced_in_its_initializer: { code: 2372, category: ts.DiagnosticCategory.Error, key: "Parameter_0_cannot_be_referenced_in_its_initializer_2372", message: "Parameter '{0}' cannot be referenced in its initializer." },
        Initializer_of_parameter_0_cannot_reference_identifier_1_declared_after_it: { code: 2373, category: ts.DiagnosticCategory.Error, key: "Initializer_of_parameter_0_cannot_reference_identifier_1_declared_after_it_2373", message: "Initializer of parameter '{0}' cannot reference identifier '{1}' declared after it." },
        Duplicate_string_index_signature: { code: 2374, category: ts.DiagnosticCategory.Error, key: "Duplicate_string_index_signature_2374", message: "Duplicate string index signature." },
        Duplicate_number_index_signature: { code: 2375, category: ts.DiagnosticCategory.Error, key: "Duplicate_number_index_signature_2375", message: "Duplicate number index signature." },
        A_super_call_must_be_the_first_statement_in_the_constructor_when_a_class_contains_initialized_properties_or_has_parameter_properties: { code: 2376, category: ts.DiagnosticCategory.Error, key: "A_super_call_must_be_the_first_statement_in_the_constructor_when_a_class_contains_initialized_proper_2376", message: "A 'super' call must be the first statement in the constructor when a class contains initialized properties or has parameter properties." },
        Constructors_for_derived_classes_must_contain_a_super_call: { code: 2377, category: ts.DiagnosticCategory.Error, key: "Constructors_for_derived_classes_must_contain_a_super_call_2377", message: "Constructors for derived classes must contain a 'super' call." },
        A_get_accessor_must_return_a_value: { code: 2378, category: ts.DiagnosticCategory.Error, key: "A_get_accessor_must_return_a_value_2378", message: "A 'get' accessor must return a value." },
        Getter_and_setter_accessors_do_not_agree_in_visibility: { code: 2379, category: ts.DiagnosticCategory.Error, key: "Getter_and_setter_accessors_do_not_agree_in_visibility_2379", message: "Getter and setter accessors do not agree in visibility." },
        get_and_set_accessor_must_have_the_same_type: { code: 2380, category: ts.DiagnosticCategory.Error, key: "get_and_set_accessor_must_have_the_same_type_2380", message: "'get' and 'set' accessor must have the same type." },
        A_signature_with_an_implementation_cannot_use_a_string_literal_type: { code: 2381, category: ts.DiagnosticCategory.Error, key: "A_signature_with_an_implementation_cannot_use_a_string_literal_type_2381", message: "A signature with an implementation cannot use a string literal type." },
        Specialized_overload_signature_is_not_assignable_to_any_non_specialized_signature: { code: 2382, category: ts.DiagnosticCategory.Error, key: "Specialized_overload_signature_is_not_assignable_to_any_non_specialized_signature_2382", message: "Specialized overload signature is not assignable to any non-specialized signature." },
        Overload_signatures_must_all_be_exported_or_non_exported: { code: 2383, category: ts.DiagnosticCategory.Error, key: "Overload_signatures_must_all_be_exported_or_non_exported_2383", message: "Overload signatures must all be exported or non-exported." },
        Overload_signatures_must_all_be_ambient_or_non_ambient: { code: 2384, category: ts.DiagnosticCategory.Error, key: "Overload_signatures_must_all_be_ambient_or_non_ambient_2384", message: "Overload signatures must all be ambient or non-ambient." },
        Overload_signatures_must_all_be_public_private_or_protected: { code: 2385, category: ts.DiagnosticCategory.Error, key: "Overload_signatures_must_all_be_public_private_or_protected_2385", message: "Overload signatures must all be public, private or protected." },
        Overload_signatures_must_all_be_optional_or_required: { code: 2386, category: ts.DiagnosticCategory.Error, key: "Overload_signatures_must_all_be_optional_or_required_2386", message: "Overload signatures must all be optional or required." },
        Function_overload_must_be_static: { code: 2387, category: ts.DiagnosticCategory.Error, key: "Function_overload_must_be_static_2387", message: "Function overload must be static." },
        Function_overload_must_not_be_static: { code: 2388, category: ts.DiagnosticCategory.Error, key: "Function_overload_must_not_be_static_2388", message: "Function overload must not be static." },
        Function_implementation_name_must_be_0: { code: 2389, category: ts.DiagnosticCategory.Error, key: "Function_implementation_name_must_be_0_2389", message: "Function implementation name must be '{0}'." },
        Constructor_implementation_is_missing: { code: 2390, category: ts.DiagnosticCategory.Error, key: "Constructor_implementation_is_missing_2390", message: "Constructor implementation is missing." },
        Function_implementation_is_missing_or_not_immediately_following_the_declaration: { code: 2391, category: ts.DiagnosticCategory.Error, key: "Function_implementation_is_missing_or_not_immediately_following_the_declaration_2391", message: "Function implementation is missing or not immediately following the declaration." },
        Multiple_constructor_implementations_are_not_allowed: { code: 2392, category: ts.DiagnosticCategory.Error, key: "Multiple_constructor_implementations_are_not_allowed_2392", message: "Multiple constructor implementations are not allowed." },
        Duplicate_function_implementation: { code: 2393, category: ts.DiagnosticCategory.Error, key: "Duplicate_function_implementation_2393", message: "Duplicate function implementation." },
        Overload_signature_is_not_compatible_with_function_implementation: { code: 2394, category: ts.DiagnosticCategory.Error, key: "Overload_signature_is_not_compatible_with_function_implementation_2394", message: "Overload signature is not compatible with function implementation." },
        Individual_declarations_in_merged_declaration_0_must_be_all_exported_or_all_local: { code: 2395, category: ts.DiagnosticCategory.Error, key: "Individual_declarations_in_merged_declaration_0_must_be_all_exported_or_all_local_2395", message: "Individual declarations in merged declaration '{0}' must be all exported or all local." },
        Duplicate_identifier_arguments_Compiler_uses_arguments_to_initialize_rest_parameters: { code: 2396, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_arguments_Compiler_uses_arguments_to_initialize_rest_parameters_2396", message: "Duplicate identifier 'arguments'. Compiler uses 'arguments' to initialize rest parameters." },
        Declaration_name_conflicts_with_built_in_global_identifier_0: { code: 2397, category: ts.DiagnosticCategory.Error, key: "Declaration_name_conflicts_with_built_in_global_identifier_0_2397", message: "Declaration name conflicts with built-in global identifier '{0}'." },
        Duplicate_identifier_this_Compiler_uses_variable_declaration_this_to_capture_this_reference: { code: 2399, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_this_Compiler_uses_variable_declaration_this_to_capture_this_reference_2399", message: "Duplicate identifier '_this'. Compiler uses variable declaration '_this' to capture 'this' reference." },
        Expression_resolves_to_variable_declaration_this_that_compiler_uses_to_capture_this_reference: { code: 2400, category: ts.DiagnosticCategory.Error, key: "Expression_resolves_to_variable_declaration_this_that_compiler_uses_to_capture_this_reference_2400", message: "Expression resolves to variable declaration '_this' that compiler uses to capture 'this' reference." },
        Duplicate_identifier_super_Compiler_uses_super_to_capture_base_class_reference: { code: 2401, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_super_Compiler_uses_super_to_capture_base_class_reference_2401", message: "Duplicate identifier '_super'. Compiler uses '_super' to capture base class reference." },
        Expression_resolves_to_super_that_compiler_uses_to_capture_base_class_reference: { code: 2402, category: ts.DiagnosticCategory.Error, key: "Expression_resolves_to_super_that_compiler_uses_to_capture_base_class_reference_2402", message: "Expression resolves to '_super' that compiler uses to capture base class reference." },
        Subsequent_variable_declarations_must_have_the_same_type_Variable_0_must_be_of_type_1_but_here_has_type_2: { code: 2403, category: ts.DiagnosticCategory.Error, key: "Subsequent_variable_declarations_must_have_the_same_type_Variable_0_must_be_of_type_1_but_here_has_t_2403", message: "Subsequent variable declarations must have the same type.  Variable '{0}' must be of type '{1}', but here has type '{2}'." },
        The_left_hand_side_of_a_for_in_statement_cannot_use_a_type_annotation: { code: 2404, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_in_statement_cannot_use_a_type_annotation_2404", message: "The left-hand side of a 'for...in' statement cannot use a type annotation." },
        The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any: { code: 2405, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_in_statement_must_be_of_type_string_or_any_2405", message: "The left-hand side of a 'for...in' statement must be of type 'string' or 'any'." },
        Invalid_left_hand_side_in_for_in_statement: { code: 2406, category: ts.DiagnosticCategory.Error, key: "Invalid_left_hand_side_in_for_in_statement_2406", message: "Invalid left-hand side in 'for...in' statement." },
        The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter: { code: 2407, category: ts.DiagnosticCategory.Error, key: "The_right_hand_side_of_a_for_in_statement_must_be_of_type_any_an_object_type_or_a_type_parameter_2407", message: "The right-hand side of a 'for...in' statement must be of type 'any', an object type or a type parameter." },
        Setters_cannot_return_a_value: { code: 2408, category: ts.DiagnosticCategory.Error, key: "Setters_cannot_return_a_value_2408", message: "Setters cannot return a value." },
        Return_type_of_constructor_signature_must_be_assignable_to_the_instance_type_of_the_class: { code: 2409, category: ts.DiagnosticCategory.Error, key: "Return_type_of_constructor_signature_must_be_assignable_to_the_instance_type_of_the_class_2409", message: "Return type of constructor signature must be assignable to the instance type of the class" },
        All_symbols_within_a_with_block_will_be_resolved_to_any: { code: 2410, category: ts.DiagnosticCategory.Error, key: "All_symbols_within_a_with_block_will_be_resolved_to_any_2410", message: "All symbols within a 'with' block will be resolved to 'any'." },
        Property_0_of_type_1_is_not_assignable_to_string_index_type_2: { code: 2411, category: ts.DiagnosticCategory.Error, key: "Property_0_of_type_1_is_not_assignable_to_string_index_type_2_2411", message: "Property '{0}' of type '{1}' is not assignable to string index type '{2}'." },
        Property_0_of_type_1_is_not_assignable_to_numeric_index_type_2: { code: 2412, category: ts.DiagnosticCategory.Error, key: "Property_0_of_type_1_is_not_assignable_to_numeric_index_type_2_2412", message: "Property '{0}' of type '{1}' is not assignable to numeric index type '{2}'." },
        Numeric_index_type_0_is_not_assignable_to_string_index_type_1: { code: 2413, category: ts.DiagnosticCategory.Error, key: "Numeric_index_type_0_is_not_assignable_to_string_index_type_1_2413", message: "Numeric index type '{0}' is not assignable to string index type '{1}'." },
        Class_name_cannot_be_0: { code: 2414, category: ts.DiagnosticCategory.Error, key: "Class_name_cannot_be_0_2414", message: "Class name cannot be '{0}'" },
        Class_0_incorrectly_extends_base_class_1: { code: 2415, category: ts.DiagnosticCategory.Error, key: "Class_0_incorrectly_extends_base_class_1_2415", message: "Class '{0}' incorrectly extends base class '{1}'." },
        Class_static_side_0_incorrectly_extends_base_class_static_side_1: { code: 2417, category: ts.DiagnosticCategory.Error, key: "Class_static_side_0_incorrectly_extends_base_class_static_side_1_2417", message: "Class static side '{0}' incorrectly extends base class static side '{1}'." },
        Class_0_incorrectly_implements_interface_1: { code: 2420, category: ts.DiagnosticCategory.Error, key: "Class_0_incorrectly_implements_interface_1_2420", message: "Class '{0}' incorrectly implements interface '{1}'." },
        A_class_may_only_implement_another_class_or_interface: { code: 2422, category: ts.DiagnosticCategory.Error, key: "A_class_may_only_implement_another_class_or_interface_2422", message: "A class may only implement another class or interface." },
        Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_accessor: { code: 2423, category: ts.DiagnosticCategory.Error, key: "Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_access_2423", message: "Class '{0}' defines instance member function '{1}', but extended class '{2}' defines it as instance member accessor." },
        Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_property: { code: 2424, category: ts.DiagnosticCategory.Error, key: "Class_0_defines_instance_member_function_1_but_extended_class_2_defines_it_as_instance_member_proper_2424", message: "Class '{0}' defines instance member function '{1}', but extended class '{2}' defines it as instance member property." },
        Class_0_defines_instance_member_property_1_but_extended_class_2_defines_it_as_instance_member_function: { code: 2425, category: ts.DiagnosticCategory.Error, key: "Class_0_defines_instance_member_property_1_but_extended_class_2_defines_it_as_instance_member_functi_2425", message: "Class '{0}' defines instance member property '{1}', but extended class '{2}' defines it as instance member function." },
        Class_0_defines_instance_member_accessor_1_but_extended_class_2_defines_it_as_instance_member_function: { code: 2426, category: ts.DiagnosticCategory.Error, key: "Class_0_defines_instance_member_accessor_1_but_extended_class_2_defines_it_as_instance_member_functi_2426", message: "Class '{0}' defines instance member accessor '{1}', but extended class '{2}' defines it as instance member function." },
        Interface_name_cannot_be_0: { code: 2427, category: ts.DiagnosticCategory.Error, key: "Interface_name_cannot_be_0_2427", message: "Interface name cannot be '{0}'" },
        All_declarations_of_0_must_have_identical_type_parameters: { code: 2428, category: ts.DiagnosticCategory.Error, key: "All_declarations_of_0_must_have_identical_type_parameters_2428", message: "All declarations of '{0}' must have identical type parameters." },
        Interface_0_incorrectly_extends_interface_1: { code: 2430, category: ts.DiagnosticCategory.Error, key: "Interface_0_incorrectly_extends_interface_1_2430", message: "Interface '{0}' incorrectly extends interface '{1}'." },
        Enum_name_cannot_be_0: { code: 2431, category: ts.DiagnosticCategory.Error, key: "Enum_name_cannot_be_0_2431", message: "Enum name cannot be '{0}'" },
        In_an_enum_with_multiple_declarations_only_one_declaration_can_omit_an_initializer_for_its_first_enum_element: { code: 2432, category: ts.DiagnosticCategory.Error, key: "In_an_enum_with_multiple_declarations_only_one_declaration_can_omit_an_initializer_for_its_first_enu_2432", message: "In an enum with multiple declarations, only one declaration can omit an initializer for its first enum element." },
        A_namespace_declaration_cannot_be_in_a_different_file_from_a_class_or_function_with_which_it_is_merged: { code: 2433, category: ts.DiagnosticCategory.Error, key: "A_namespace_declaration_cannot_be_in_a_different_file_from_a_class_or_function_with_which_it_is_merg_2433", message: "A namespace declaration cannot be in a different file from a class or function with which it is merged" },
        A_namespace_declaration_cannot_be_located_prior_to_a_class_or_function_with_which_it_is_merged: { code: 2434, category: ts.DiagnosticCategory.Error, key: "A_namespace_declaration_cannot_be_located_prior_to_a_class_or_function_with_which_it_is_merged_2434", message: "A namespace declaration cannot be located prior to a class or function with which it is merged" },
        Ambient_modules_cannot_be_nested_in_other_modules_or_namespaces: { code: 2435, category: ts.DiagnosticCategory.Error, key: "Ambient_modules_cannot_be_nested_in_other_modules_or_namespaces_2435", message: "Ambient modules cannot be nested in other modules or namespaces." },
        Ambient_module_declaration_cannot_specify_relative_module_name: { code: 2436, category: ts.DiagnosticCategory.Error, key: "Ambient_module_declaration_cannot_specify_relative_module_name_2436", message: "Ambient module declaration cannot specify relative module name." },
        Module_0_is_hidden_by_a_local_declaration_with_the_same_name: { code: 2437, category: ts.DiagnosticCategory.Error, key: "Module_0_is_hidden_by_a_local_declaration_with_the_same_name_2437", message: "Module '{0}' is hidden by a local declaration with the same name" },
        Import_name_cannot_be_0: { code: 2438, category: ts.DiagnosticCategory.Error, key: "Import_name_cannot_be_0_2438", message: "Import name cannot be '{0}'" },
        Import_or_export_declaration_in_an_ambient_module_declaration_cannot_reference_module_through_relative_module_name: { code: 2439, category: ts.DiagnosticCategory.Error, key: "Import_or_export_declaration_in_an_ambient_module_declaration_cannot_reference_module_through_relati_2439", message: "Import or export declaration in an ambient module declaration cannot reference module through relative module name." },
        Import_declaration_conflicts_with_local_declaration_of_0: { code: 2440, category: ts.DiagnosticCategory.Error, key: "Import_declaration_conflicts_with_local_declaration_of_0_2440", message: "Import declaration conflicts with local declaration of '{0}'" },
        Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module: { code: 2441, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_2441", message: "Duplicate identifier '{0}'. Compiler reserves name '{1}' in top level scope of a module." },
        Types_have_separate_declarations_of_a_private_property_0: { code: 2442, category: ts.DiagnosticCategory.Error, key: "Types_have_separate_declarations_of_a_private_property_0_2442", message: "Types have separate declarations of a private property '{0}'." },
        Property_0_is_protected_but_type_1_is_not_a_class_derived_from_2: { code: 2443, category: ts.DiagnosticCategory.Error, key: "Property_0_is_protected_but_type_1_is_not_a_class_derived_from_2_2443", message: "Property '{0}' is protected but type '{1}' is not a class derived from '{2}'." },
        Property_0_is_protected_in_type_1_but_public_in_type_2: { code: 2444, category: ts.DiagnosticCategory.Error, key: "Property_0_is_protected_in_type_1_but_public_in_type_2_2444", message: "Property '{0}' is protected in type '{1}' but public in type '{2}'." },
        Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses: { code: 2445, category: ts.DiagnosticCategory.Error, key: "Property_0_is_protected_and_only_accessible_within_class_1_and_its_subclasses_2445", message: "Property '{0}' is protected and only accessible within class '{1}' and its subclasses." },
        Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1: { code: 2446, category: ts.DiagnosticCategory.Error, key: "Property_0_is_protected_and_only_accessible_through_an_instance_of_class_1_2446", message: "Property '{0}' is protected and only accessible through an instance of class '{1}'." },
        The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead: { code: 2447, category: ts.DiagnosticCategory.Error, key: "The_0_operator_is_not_allowed_for_boolean_types_Consider_using_1_instead_2447", message: "The '{0}' operator is not allowed for boolean types. Consider using '{1}' instead." },
        Block_scoped_variable_0_used_before_its_declaration: { code: 2448, category: ts.DiagnosticCategory.Error, key: "Block_scoped_variable_0_used_before_its_declaration_2448", message: "Block-scoped variable '{0}' used before its declaration." },
        The_operand_of_an_increment_or_decrement_operator_cannot_be_a_constant_or_a_read_only_property: { code: 2449, category: ts.DiagnosticCategory.Error, key: "The_operand_of_an_increment_or_decrement_operator_cannot_be_a_constant_or_a_read_only_property_2449", message: "The operand of an increment or decrement operator cannot be a constant or a read-only property." },
        Left_hand_side_of_assignment_expression_cannot_be_a_constant_or_a_read_only_property: { code: 2450, category: ts.DiagnosticCategory.Error, key: "Left_hand_side_of_assignment_expression_cannot_be_a_constant_or_a_read_only_property_2450", message: "Left-hand side of assignment expression cannot be a constant or a read-only property." },
        Cannot_redeclare_block_scoped_variable_0: { code: 2451, category: ts.DiagnosticCategory.Error, key: "Cannot_redeclare_block_scoped_variable_0_2451", message: "Cannot redeclare block-scoped variable '{0}'." },
        An_enum_member_cannot_have_a_numeric_name: { code: 2452, category: ts.DiagnosticCategory.Error, key: "An_enum_member_cannot_have_a_numeric_name_2452", message: "An enum member cannot have a numeric name." },
        The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Consider_specifying_the_type_arguments_explicitly: { code: 2453, category: ts.DiagnosticCategory.Error, key: "The_type_argument_for_type_parameter_0_cannot_be_inferred_from_the_usage_Consider_specifying_the_typ_2453", message: "The type argument for type parameter '{0}' cannot be inferred from the usage. Consider specifying the type arguments explicitly." },
        Variable_0_is_used_before_being_assigned: { code: 2454, category: ts.DiagnosticCategory.Error, key: "Variable_0_is_used_before_being_assigned_2454", message: "Variable '{0}' is used before being assigned." },
        Type_argument_candidate_1_is_not_a_valid_type_argument_because_it_is_not_a_supertype_of_candidate_0: { code: 2455, category: ts.DiagnosticCategory.Error, key: "Type_argument_candidate_1_is_not_a_valid_type_argument_because_it_is_not_a_supertype_of_candidate_0_2455", message: "Type argument candidate '{1}' is not a valid type argument because it is not a supertype of candidate '{0}'." },
        Type_alias_0_circularly_references_itself: { code: 2456, category: ts.DiagnosticCategory.Error, key: "Type_alias_0_circularly_references_itself_2456", message: "Type alias '{0}' circularly references itself." },
        Type_alias_name_cannot_be_0: { code: 2457, category: ts.DiagnosticCategory.Error, key: "Type_alias_name_cannot_be_0_2457", message: "Type alias name cannot be '{0}'" },
        An_AMD_module_cannot_have_multiple_name_assignments: { code: 2458, category: ts.DiagnosticCategory.Error, key: "An_AMD_module_cannot_have_multiple_name_assignments_2458", message: "An AMD module cannot have multiple name assignments." },
        Type_0_has_no_property_1_and_no_string_index_signature: { code: 2459, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_property_1_and_no_string_index_signature_2459", message: "Type '{0}' has no property '{1}' and no string index signature." },
        Type_0_has_no_property_1: { code: 2460, category: ts.DiagnosticCategory.Error, key: "Type_0_has_no_property_1_2460", message: "Type '{0}' has no property '{1}'." },
        Type_0_is_not_an_array_type: { code: 2461, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_an_array_type_2461", message: "Type '{0}' is not an array type." },
        A_rest_element_must_be_last_in_an_array_destructuring_pattern: { code: 2462, category: ts.DiagnosticCategory.Error, key: "A_rest_element_must_be_last_in_an_array_destructuring_pattern_2462", message: "A rest element must be last in an array destructuring pattern" },
        A_binding_pattern_parameter_cannot_be_optional_in_an_implementation_signature: { code: 2463, category: ts.DiagnosticCategory.Error, key: "A_binding_pattern_parameter_cannot_be_optional_in_an_implementation_signature_2463", message: "A binding pattern parameter cannot be optional in an implementation signature." },
        A_computed_property_name_must_be_of_type_string_number_symbol_or_any: { code: 2464, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_must_be_of_type_string_number_symbol_or_any_2464", message: "A computed property name must be of type 'string', 'number', 'symbol', or 'any'." },
        this_cannot_be_referenced_in_a_computed_property_name: { code: 2465, category: ts.DiagnosticCategory.Error, key: "this_cannot_be_referenced_in_a_computed_property_name_2465", message: "'this' cannot be referenced in a computed property name." },
        super_cannot_be_referenced_in_a_computed_property_name: { code: 2466, category: ts.DiagnosticCategory.Error, key: "super_cannot_be_referenced_in_a_computed_property_name_2466", message: "'super' cannot be referenced in a computed property name." },
        A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type: { code: 2467, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type_2467", message: "A computed property name cannot reference a type parameter from its containing type." },
        Cannot_find_global_value_0: { code: 2468, category: ts.DiagnosticCategory.Error, key: "Cannot_find_global_value_0_2468", message: "Cannot find global value '{0}'." },
        The_0_operator_cannot_be_applied_to_type_symbol: { code: 2469, category: ts.DiagnosticCategory.Error, key: "The_0_operator_cannot_be_applied_to_type_symbol_2469", message: "The '{0}' operator cannot be applied to type 'symbol'." },
        Symbol_reference_does_not_refer_to_the_global_Symbol_constructor_object: { code: 2470, category: ts.DiagnosticCategory.Error, key: "Symbol_reference_does_not_refer_to_the_global_Symbol_constructor_object_2470", message: "'Symbol' reference does not refer to the global Symbol constructor object." },
        A_computed_property_name_of_the_form_0_must_be_of_type_symbol: { code: 2471, category: ts.DiagnosticCategory.Error, key: "A_computed_property_name_of_the_form_0_must_be_of_type_symbol_2471", message: "A computed property name of the form '{0}' must be of type 'symbol'." },
        Spread_operator_in_new_expressions_is_only_available_when_targeting_ECMAScript_5_and_higher: { code: 2472, category: ts.DiagnosticCategory.Error, key: "Spread_operator_in_new_expressions_is_only_available_when_targeting_ECMAScript_5_and_higher_2472", message: "Spread operator in 'new' expressions is only available when targeting ECMAScript 5 and higher." },
        Enum_declarations_must_all_be_const_or_non_const: { code: 2473, category: ts.DiagnosticCategory.Error, key: "Enum_declarations_must_all_be_const_or_non_const_2473", message: "Enum declarations must all be const or non-const." },
        In_const_enum_declarations_member_initializer_must_be_constant_expression: { code: 2474, category: ts.DiagnosticCategory.Error, key: "In_const_enum_declarations_member_initializer_must_be_constant_expression_2474", message: "In 'const' enum declarations member initializer must be constant expression." },
        const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_import_declaration_or_export_assignment: { code: 2475, category: ts.DiagnosticCategory.Error, key: "const_enums_can_only_be_used_in_property_or_index_access_expressions_or_the_right_hand_side_of_an_im_2475", message: "'const' enums can only be used in property or index access expressions or the right hand side of an import declaration or export assignment." },
        A_const_enum_member_can_only_be_accessed_using_a_string_literal: { code: 2476, category: ts.DiagnosticCategory.Error, key: "A_const_enum_member_can_only_be_accessed_using_a_string_literal_2476", message: "A const enum member can only be accessed using a string literal." },
        const_enum_member_initializer_was_evaluated_to_a_non_finite_value: { code: 2477, category: ts.DiagnosticCategory.Error, key: "const_enum_member_initializer_was_evaluated_to_a_non_finite_value_2477", message: "'const' enum member initializer was evaluated to a non-finite value." },
        const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN: { code: 2478, category: ts.DiagnosticCategory.Error, key: "const_enum_member_initializer_was_evaluated_to_disallowed_value_NaN_2478", message: "'const' enum member initializer was evaluated to disallowed value 'NaN'." },
        Property_0_does_not_exist_on_const_enum_1: { code: 2479, category: ts.DiagnosticCategory.Error, key: "Property_0_does_not_exist_on_const_enum_1_2479", message: "Property '{0}' does not exist on 'const' enum '{1}'." },
        let_is_not_allowed_to_be_used_as_a_name_in_let_or_const_declarations: { code: 2480, category: ts.DiagnosticCategory.Error, key: "let_is_not_allowed_to_be_used_as_a_name_in_let_or_const_declarations_2480", message: "'let' is not allowed to be used as a name in 'let' or 'const' declarations." },
        Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1: { code: 2481, category: ts.DiagnosticCategory.Error, key: "Cannot_initialize_outer_scoped_variable_0_in_the_same_scope_as_block_scoped_declaration_1_2481", message: "Cannot initialize outer scoped variable '{0}' in the same scope as block scoped declaration '{1}'." },
        The_left_hand_side_of_a_for_of_statement_cannot_use_a_type_annotation: { code: 2483, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_of_statement_cannot_use_a_type_annotation_2483", message: "The left-hand side of a 'for...of' statement cannot use a type annotation." },
        Export_declaration_conflicts_with_exported_declaration_of_0: { code: 2484, category: ts.DiagnosticCategory.Error, key: "Export_declaration_conflicts_with_exported_declaration_of_0_2484", message: "Export declaration conflicts with exported declaration of '{0}'" },
        The_left_hand_side_of_a_for_of_statement_cannot_be_a_constant_or_a_read_only_property: { code: 2485, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_of_statement_cannot_be_a_constant_or_a_read_only_property_2485", message: "The left-hand side of a 'for...of' statement cannot be a constant or a read-only property." },
        The_left_hand_side_of_a_for_in_statement_cannot_be_a_constant_or_a_read_only_property: { code: 2486, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_in_statement_cannot_be_a_constant_or_a_read_only_property_2486", message: "The left-hand side of a 'for...in' statement cannot be a constant or a read-only property." },
        Invalid_left_hand_side_in_for_of_statement: { code: 2487, category: ts.DiagnosticCategory.Error, key: "Invalid_left_hand_side_in_for_of_statement_2487", message: "Invalid left-hand side in 'for...of' statement." },
        Type_must_have_a_Symbol_iterator_method_that_returns_an_iterator: { code: 2488, category: ts.DiagnosticCategory.Error, key: "Type_must_have_a_Symbol_iterator_method_that_returns_an_iterator_2488", message: "Type must have a '[Symbol.iterator]()' method that returns an iterator." },
        An_iterator_must_have_a_next_method: { code: 2489, category: ts.DiagnosticCategory.Error, key: "An_iterator_must_have_a_next_method_2489", message: "An iterator must have a 'next()' method." },
        The_type_returned_by_the_next_method_of_an_iterator_must_have_a_value_property: { code: 2490, category: ts.DiagnosticCategory.Error, key: "The_type_returned_by_the_next_method_of_an_iterator_must_have_a_value_property_2490", message: "The type returned by the 'next()' method of an iterator must have a 'value' property." },
        The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern: { code: 2491, category: ts.DiagnosticCategory.Error, key: "The_left_hand_side_of_a_for_in_statement_cannot_be_a_destructuring_pattern_2491", message: "The left-hand side of a 'for...in' statement cannot be a destructuring pattern." },
        Cannot_redeclare_identifier_0_in_catch_clause: { code: 2492, category: ts.DiagnosticCategory.Error, key: "Cannot_redeclare_identifier_0_in_catch_clause_2492", message: "Cannot redeclare identifier '{0}' in catch clause" },
        Tuple_type_0_with_length_1_cannot_be_assigned_to_tuple_with_length_2: { code: 2493, category: ts.DiagnosticCategory.Error, key: "Tuple_type_0_with_length_1_cannot_be_assigned_to_tuple_with_length_2_2493", message: "Tuple type '{0}' with length '{1}' cannot be assigned to tuple with length '{2}'." },
        Using_a_string_in_a_for_of_statement_is_only_supported_in_ECMAScript_5_and_higher: { code: 2494, category: ts.DiagnosticCategory.Error, key: "Using_a_string_in_a_for_of_statement_is_only_supported_in_ECMAScript_5_and_higher_2494", message: "Using a string in a 'for...of' statement is only supported in ECMAScript 5 and higher." },
        Type_0_is_not_an_array_type_or_a_string_type: { code: 2495, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_an_array_type_or_a_string_type_2495", message: "Type '{0}' is not an array type or a string type." },
        The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_standard_function_expression: { code: 2496, category: ts.DiagnosticCategory.Error, key: "The_arguments_object_cannot_be_referenced_in_an_arrow_function_in_ES3_and_ES5_Consider_using_a_stand_2496", message: "The 'arguments' object cannot be referenced in an arrow function in ES3 and ES5. Consider using a standard function expression." },
        Module_0_resolves_to_a_non_module_entity_and_cannot_be_imported_using_this_construct: { code: 2497, category: ts.DiagnosticCategory.Error, key: "Module_0_resolves_to_a_non_module_entity_and_cannot_be_imported_using_this_construct_2497", message: "Module '{0}' resolves to a non-module entity and cannot be imported using this construct." },
        Module_0_uses_export_and_cannot_be_used_with_export_Asterisk: { code: 2498, category: ts.DiagnosticCategory.Error, key: "Module_0_uses_export_and_cannot_be_used_with_export_Asterisk_2498", message: "Module '{0}' uses 'export =' and cannot be used with 'export *'." },
        An_interface_can_only_extend_an_identifier_Slashqualified_name_with_optional_type_arguments: { code: 2499, category: ts.DiagnosticCategory.Error, key: "An_interface_can_only_extend_an_identifier_Slashqualified_name_with_optional_type_arguments_2499", message: "An interface can only extend an identifier/qualified-name with optional type arguments." },
        A_class_can_only_implement_an_identifier_Slashqualified_name_with_optional_type_arguments: { code: 2500, category: ts.DiagnosticCategory.Error, key: "A_class_can_only_implement_an_identifier_Slashqualified_name_with_optional_type_arguments_2500", message: "A class can only implement an identifier/qualified-name with optional type arguments." },
        A_rest_element_cannot_contain_a_binding_pattern: { code: 2501, category: ts.DiagnosticCategory.Error, key: "A_rest_element_cannot_contain_a_binding_pattern_2501", message: "A rest element cannot contain a binding pattern." },
        _0_is_referenced_directly_or_indirectly_in_its_own_type_annotation: { code: 2502, category: ts.DiagnosticCategory.Error, key: "_0_is_referenced_directly_or_indirectly_in_its_own_type_annotation_2502", message: "'{0}' is referenced directly or indirectly in its own type annotation." },
        Cannot_find_namespace_0: { code: 2503, category: ts.DiagnosticCategory.Error, key: "Cannot_find_namespace_0_2503", message: "Cannot find namespace '{0}'." },
        No_best_common_type_exists_among_yield_expressions: { code: 2504, category: ts.DiagnosticCategory.Error, key: "No_best_common_type_exists_among_yield_expressions_2504", message: "No best common type exists among yield expressions." },
        A_generator_cannot_have_a_void_type_annotation: { code: 2505, category: ts.DiagnosticCategory.Error, key: "A_generator_cannot_have_a_void_type_annotation_2505", message: "A generator cannot have a 'void' type annotation." },
        _0_is_referenced_directly_or_indirectly_in_its_own_base_expression: { code: 2506, category: ts.DiagnosticCategory.Error, key: "_0_is_referenced_directly_or_indirectly_in_its_own_base_expression_2506", message: "'{0}' is referenced directly or indirectly in its own base expression." },
        Type_0_is_not_a_constructor_function_type: { code: 2507, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_a_constructor_function_type_2507", message: "Type '{0}' is not a constructor function type." },
        No_base_constructor_has_the_specified_number_of_type_arguments: { code: 2508, category: ts.DiagnosticCategory.Error, key: "No_base_constructor_has_the_specified_number_of_type_arguments_2508", message: "No base constructor has the specified number of type arguments." },
        Base_constructor_return_type_0_is_not_a_class_or_interface_type: { code: 2509, category: ts.DiagnosticCategory.Error, key: "Base_constructor_return_type_0_is_not_a_class_or_interface_type_2509", message: "Base constructor return type '{0}' is not a class or interface type." },
        Base_constructors_must_all_have_the_same_return_type: { code: 2510, category: ts.DiagnosticCategory.Error, key: "Base_constructors_must_all_have_the_same_return_type_2510", message: "Base constructors must all have the same return type." },
        Cannot_create_an_instance_of_the_abstract_class_0: { code: 2511, category: ts.DiagnosticCategory.Error, key: "Cannot_create_an_instance_of_the_abstract_class_0_2511", message: "Cannot create an instance of the abstract class '{0}'." },
        Overload_signatures_must_all_be_abstract_or_non_abstract: { code: 2512, category: ts.DiagnosticCategory.Error, key: "Overload_signatures_must_all_be_abstract_or_non_abstract_2512", message: "Overload signatures must all be abstract or non-abstract." },
        Abstract_method_0_in_class_1_cannot_be_accessed_via_super_expression: { code: 2513, category: ts.DiagnosticCategory.Error, key: "Abstract_method_0_in_class_1_cannot_be_accessed_via_super_expression_2513", message: "Abstract method '{0}' in class '{1}' cannot be accessed via super expression." },
        Classes_containing_abstract_methods_must_be_marked_abstract: { code: 2514, category: ts.DiagnosticCategory.Error, key: "Classes_containing_abstract_methods_must_be_marked_abstract_2514", message: "Classes containing abstract methods must be marked abstract." },
        Non_abstract_class_0_does_not_implement_inherited_abstract_member_1_from_class_2: { code: 2515, category: ts.DiagnosticCategory.Error, key: "Non_abstract_class_0_does_not_implement_inherited_abstract_member_1_from_class_2_2515", message: "Non-abstract class '{0}' does not implement inherited abstract member '{1}' from class '{2}'." },
        All_declarations_of_an_abstract_method_must_be_consecutive: { code: 2516, category: ts.DiagnosticCategory.Error, key: "All_declarations_of_an_abstract_method_must_be_consecutive_2516", message: "All declarations of an abstract method must be consecutive." },
        Cannot_assign_an_abstract_constructor_type_to_a_non_abstract_constructor_type: { code: 2517, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_an_abstract_constructor_type_to_a_non_abstract_constructor_type_2517", message: "Cannot assign an abstract constructor type to a non-abstract constructor type." },
        A_this_based_type_guard_is_not_compatible_with_a_parameter_based_type_guard: { code: 2518, category: ts.DiagnosticCategory.Error, key: "A_this_based_type_guard_is_not_compatible_with_a_parameter_based_type_guard_2518", message: "A 'this'-based type guard is not compatible with a parameter-based type guard." },
        Duplicate_identifier_0_Compiler_uses_declaration_1_to_support_async_functions: { code: 2520, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_0_Compiler_uses_declaration_1_to_support_async_functions_2520", message: "Duplicate identifier '{0}'. Compiler uses declaration '{1}' to support async functions." },
        Expression_resolves_to_variable_declaration_0_that_compiler_uses_to_support_async_functions: { code: 2521, category: ts.DiagnosticCategory.Error, key: "Expression_resolves_to_variable_declaration_0_that_compiler_uses_to_support_async_functions_2521", message: "Expression resolves to variable declaration '{0}' that compiler uses to support async functions." },
        The_arguments_object_cannot_be_referenced_in_an_async_arrow_function_Consider_using_a_standard_async_function_expression: { code: 2522, category: ts.DiagnosticCategory.Error, key: "The_arguments_object_cannot_be_referenced_in_an_async_arrow_function_Consider_using_a_standard_async_2522", message: "The 'arguments' object cannot be referenced in an async arrow function. Consider using a standard async function expression." },
        yield_expressions_cannot_be_used_in_a_parameter_initializer: { code: 2523, category: ts.DiagnosticCategory.Error, key: "yield_expressions_cannot_be_used_in_a_parameter_initializer_2523", message: "'yield' expressions cannot be used in a parameter initializer." },
        await_expressions_cannot_be_used_in_a_parameter_initializer: { code: 2524, category: ts.DiagnosticCategory.Error, key: "await_expressions_cannot_be_used_in_a_parameter_initializer_2524", message: "'await' expressions cannot be used in a parameter initializer." },
        Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value: { code: 2525, category: ts.DiagnosticCategory.Error, key: "Initializer_provides_no_value_for_this_binding_element_and_the_binding_element_has_no_default_value_2525", message: "Initializer provides no value for this binding element and the binding element has no default value." },
        A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface: { code: 2526, category: ts.DiagnosticCategory.Error, key: "A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface_2526", message: "A 'this' type is available only in a non-static member of a class or interface." },
        The_inferred_type_of_0_references_an_inaccessible_this_type_A_type_annotation_is_necessary: { code: 2527, category: ts.DiagnosticCategory.Error, key: "The_inferred_type_of_0_references_an_inaccessible_this_type_A_type_annotation_is_necessary_2527", message: "The inferred type of '{0}' references an inaccessible 'this' type. A type annotation is necessary." },
        A_module_cannot_have_multiple_default_exports: { code: 2528, category: ts.DiagnosticCategory.Error, key: "A_module_cannot_have_multiple_default_exports_2528", message: "A module cannot have multiple default exports." },
        Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_containing_async_functions: { code: 2529, category: ts.DiagnosticCategory.Error, key: "Duplicate_identifier_0_Compiler_reserves_name_1_in_top_level_scope_of_a_module_containing_async_func_2529", message: "Duplicate identifier '{0}'. Compiler reserves name '{1}' in top level scope of a module containing async functions." },
        Property_0_is_incompatible_with_index_signature: { code: 2530, category: ts.DiagnosticCategory.Error, key: "Property_0_is_incompatible_with_index_signature_2530", message: "Property '{0}' is incompatible with index signature." },
        Object_is_possibly_null: { code: 2531, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_null_2531", message: "Object is possibly 'null'." },
        Object_is_possibly_undefined: { code: 2532, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_undefined_2532", message: "Object is possibly 'undefined'." },
        Object_is_possibly_null_or_undefined: { code: 2533, category: ts.DiagnosticCategory.Error, key: "Object_is_possibly_null_or_undefined_2533", message: "Object is possibly 'null' or 'undefined'." },
        JSX_element_attributes_type_0_may_not_be_a_union_type: { code: 2600, category: ts.DiagnosticCategory.Error, key: "JSX_element_attributes_type_0_may_not_be_a_union_type_2600", message: "JSX element attributes type '{0}' may not be a union type." },
        The_return_type_of_a_JSX_element_constructor_must_return_an_object_type: { code: 2601, category: ts.DiagnosticCategory.Error, key: "The_return_type_of_a_JSX_element_constructor_must_return_an_object_type_2601", message: "The return type of a JSX element constructor must return an object type." },
        JSX_element_implicitly_has_type_any_because_the_global_type_JSX_Element_does_not_exist: { code: 2602, category: ts.DiagnosticCategory.Error, key: "JSX_element_implicitly_has_type_any_because_the_global_type_JSX_Element_does_not_exist_2602", message: "JSX element implicitly has type 'any' because the global type 'JSX.Element' does not exist." },
        Property_0_in_type_1_is_not_assignable_to_type_2: { code: 2603, category: ts.DiagnosticCategory.Error, key: "Property_0_in_type_1_is_not_assignable_to_type_2_2603", message: "Property '{0}' in type '{1}' is not assignable to type '{2}'" },
        JSX_element_type_0_does_not_have_any_construct_or_call_signatures: { code: 2604, category: ts.DiagnosticCategory.Error, key: "JSX_element_type_0_does_not_have_any_construct_or_call_signatures_2604", message: "JSX element type '{0}' does not have any construct or call signatures." },
        JSX_element_type_0_is_not_a_constructor_function_for_JSX_elements: { code: 2605, category: ts.DiagnosticCategory.Error, key: "JSX_element_type_0_is_not_a_constructor_function_for_JSX_elements_2605", message: "JSX element type '{0}' is not a constructor function for JSX elements." },
        Property_0_of_JSX_spread_attribute_is_not_assignable_to_target_property: { code: 2606, category: ts.DiagnosticCategory.Error, key: "Property_0_of_JSX_spread_attribute_is_not_assignable_to_target_property_2606", message: "Property '{0}' of JSX spread attribute is not assignable to target property." },
        JSX_element_class_does_not_support_attributes_because_it_does_not_have_a_0_property: { code: 2607, category: ts.DiagnosticCategory.Error, key: "JSX_element_class_does_not_support_attributes_because_it_does_not_have_a_0_property_2607", message: "JSX element class does not support attributes because it does not have a '{0}' property" },
        The_global_type_JSX_0_may_not_have_more_than_one_property: { code: 2608, category: ts.DiagnosticCategory.Error, key: "The_global_type_JSX_0_may_not_have_more_than_one_property_2608", message: "The global type 'JSX.{0}' may not have more than one property" },
        Cannot_emit_namespaced_JSX_elements_in_React: { code: 2650, category: ts.DiagnosticCategory.Error, key: "Cannot_emit_namespaced_JSX_elements_in_React_2650", message: "Cannot emit namespaced JSX elements in React" },
        A_member_initializer_in_a_enum_declaration_cannot_reference_members_declared_after_it_including_members_defined_in_other_enums: { code: 2651, category: ts.DiagnosticCategory.Error, key: "A_member_initializer_in_a_enum_declaration_cannot_reference_members_declared_after_it_including_memb_2651", message: "A member initializer in a enum declaration cannot reference members declared after it, including members defined in other enums." },
        Merged_declaration_0_cannot_include_a_default_export_declaration_Consider_adding_a_separate_export_default_0_declaration_instead: { code: 2652, category: ts.DiagnosticCategory.Error, key: "Merged_declaration_0_cannot_include_a_default_export_declaration_Consider_adding_a_separate_export_d_2652", message: "Merged declaration '{0}' cannot include a default export declaration. Consider adding a separate 'export default {0}' declaration instead." },
        Non_abstract_class_expression_does_not_implement_inherited_abstract_member_0_from_class_1: { code: 2653, category: ts.DiagnosticCategory.Error, key: "Non_abstract_class_expression_does_not_implement_inherited_abstract_member_0_from_class_1_2653", message: "Non-abstract class expression does not implement inherited abstract member '{0}' from class '{1}'." },
        Exported_external_package_typings_file_cannot_contain_tripleslash_references_Please_contact_the_package_author_to_update_the_package_definition: { code: 2654, category: ts.DiagnosticCategory.Error, key: "Exported_external_package_typings_file_cannot_contain_tripleslash_references_Please_contact_the_pack_2654", message: "Exported external package typings file cannot contain tripleslash references. Please contact the package author to update the package definition." },
        Exported_external_package_typings_file_0_is_not_a_module_Please_contact_the_package_author_to_update_the_package_definition: { code: 2656, category: ts.DiagnosticCategory.Error, key: "Exported_external_package_typings_file_0_is_not_a_module_Please_contact_the_package_author_to_update_2656", message: "Exported external package typings file '{0}' is not a module. Please contact the package author to update the package definition." },
        JSX_expressions_must_have_one_parent_element: { code: 2657, category: ts.DiagnosticCategory.Error, key: "JSX_expressions_must_have_one_parent_element_2657", message: "JSX expressions must have one parent element" },
        Type_0_provides_no_match_for_the_signature_1: { code: 2658, category: ts.DiagnosticCategory.Error, key: "Type_0_provides_no_match_for_the_signature_1_2658", message: "Type '{0}' provides no match for the signature '{1}'" },
        super_is_only_allowed_in_members_of_object_literal_expressions_when_option_target_is_ES2015_or_higher: { code: 2659, category: ts.DiagnosticCategory.Error, key: "super_is_only_allowed_in_members_of_object_literal_expressions_when_option_target_is_ES2015_or_highe_2659", message: "'super' is only allowed in members of object literal expressions when option 'target' is 'ES2015' or higher." },
        super_can_only_be_referenced_in_members_of_derived_classes_or_object_literal_expressions: { code: 2660, category: ts.DiagnosticCategory.Error, key: "super_can_only_be_referenced_in_members_of_derived_classes_or_object_literal_expressions_2660", message: "'super' can only be referenced in members of derived classes or object literal expressions." },
        Cannot_export_0_Only_local_declarations_can_be_exported_from_a_module: { code: 2661, category: ts.DiagnosticCategory.Error, key: "Cannot_export_0_Only_local_declarations_can_be_exported_from_a_module_2661", message: "Cannot export '{0}'. Only local declarations can be exported from a module." },
        Cannot_find_name_0_Did_you_mean_the_static_member_1_0: { code: 2662, category: ts.DiagnosticCategory.Error, key: "Cannot_find_name_0_Did_you_mean_the_static_member_1_0_2662", message: "Cannot find name '{0}'. Did you mean the static member '{1}.{0}'?" },
        Cannot_find_name_0_Did_you_mean_the_instance_member_this_0: { code: 2663, category: ts.DiagnosticCategory.Error, key: "Cannot_find_name_0_Did_you_mean_the_instance_member_this_0_2663", message: "Cannot find name '{0}'. Did you mean the instance member 'this.{0}'?" },
        Invalid_module_name_in_augmentation_module_0_cannot_be_found: { code: 2664, category: ts.DiagnosticCategory.Error, key: "Invalid_module_name_in_augmentation_module_0_cannot_be_found_2664", message: "Invalid module name in augmentation, module '{0}' cannot be found." },
        Module_augmentation_cannot_introduce_new_names_in_the_top_level_scope: { code: 2665, category: ts.DiagnosticCategory.Error, key: "Module_augmentation_cannot_introduce_new_names_in_the_top_level_scope_2665", message: "Module augmentation cannot introduce new names in the top level scope." },
        Exports_and_export_assignments_are_not_permitted_in_module_augmentations: { code: 2666, category: ts.DiagnosticCategory.Error, key: "Exports_and_export_assignments_are_not_permitted_in_module_augmentations_2666", message: "Exports and export assignments are not permitted in module augmentations." },
        Imports_are_not_permitted_in_module_augmentations_Consider_moving_them_to_the_enclosing_external_module: { code: 2667, category: ts.DiagnosticCategory.Error, key: "Imports_are_not_permitted_in_module_augmentations_Consider_moving_them_to_the_enclosing_external_mod_2667", message: "Imports are not permitted in module augmentations. Consider moving them to the enclosing external module." },
        export_modifier_cannot_be_applied_to_ambient_modules_and_module_augmentations_since_they_are_always_visible: { code: 2668, category: ts.DiagnosticCategory.Error, key: "export_modifier_cannot_be_applied_to_ambient_modules_and_module_augmentations_since_they_are_always__2668", message: "'export' modifier cannot be applied to ambient modules and module augmentations since they are always visible." },
        Augmentations_for_the_global_scope_can_only_be_directly_nested_in_external_modules_or_ambient_module_declarations: { code: 2669, category: ts.DiagnosticCategory.Error, key: "Augmentations_for_the_global_scope_can_only_be_directly_nested_in_external_modules_or_ambient_module_2669", message: "Augmentations for the global scope can only be directly nested in external modules or ambient module declarations." },
        Augmentations_for_the_global_scope_should_have_declare_modifier_unless_they_appear_in_already_ambient_context: { code: 2670, category: ts.DiagnosticCategory.Error, key: "Augmentations_for_the_global_scope_should_have_declare_modifier_unless_they_appear_in_already_ambien_2670", message: "Augmentations for the global scope should have 'declare' modifier unless they appear in already ambient context." },
        Cannot_augment_module_0_because_it_resolves_to_a_non_module_entity: { code: 2671, category: ts.DiagnosticCategory.Error, key: "Cannot_augment_module_0_because_it_resolves_to_a_non_module_entity_2671", message: "Cannot augment module '{0}' because it resolves to a non-module entity." },
        Cannot_assign_a_0_constructor_type_to_a_1_constructor_type: { code: 2672, category: ts.DiagnosticCategory.Error, key: "Cannot_assign_a_0_constructor_type_to_a_1_constructor_type_2672", message: "Cannot assign a '{0}' constructor type to a '{1}' constructor type." },
        Constructor_of_class_0_is_private_and_only_accessible_within_the_class_declaration: { code: 2673, category: ts.DiagnosticCategory.Error, key: "Constructor_of_class_0_is_private_and_only_accessible_within_the_class_declaration_2673", message: "Constructor of class '{0}' is private and only accessible within the class declaration." },
        Constructor_of_class_0_is_protected_and_only_accessible_within_the_class_declaration: { code: 2674, category: ts.DiagnosticCategory.Error, key: "Constructor_of_class_0_is_protected_and_only_accessible_within_the_class_declaration_2674", message: "Constructor of class '{0}' is protected and only accessible within the class declaration." },
        Cannot_extend_a_class_0_Class_constructor_is_marked_as_private: { code: 2675, category: ts.DiagnosticCategory.Error, key: "Cannot_extend_a_class_0_Class_constructor_is_marked_as_private_2675", message: "Cannot extend a class '{0}'. Class constructor is marked as private." },
        Accessors_must_both_be_abstract_or_non_abstract: { code: 2676, category: ts.DiagnosticCategory.Error, key: "Accessors_must_both_be_abstract_or_non_abstract_2676", message: "Accessors must both be abstract or non-abstract." },
        A_type_predicate_s_type_must_be_assignable_to_its_parameter_s_type: { code: 2677, category: ts.DiagnosticCategory.Error, key: "A_type_predicate_s_type_must_be_assignable_to_its_parameter_s_type_2677", message: "A type predicate's type must be assignable to its parameter's type." },
        Type_0_is_not_comparable_to_type_1: { code: 2678, category: ts.DiagnosticCategory.Error, key: "Type_0_is_not_comparable_to_type_1_2678", message: "Type '{0}' is not comparable to type '{1}'." },
        A_function_that_is_called_with_the_new_keyword_cannot_have_a_this_type_that_is_void: { code: 2679, category: ts.DiagnosticCategory.Error, key: "A_function_that_is_called_with_the_new_keyword_cannot_have_a_this_type_that_is_void_2679", message: "A function that is called with the 'new' keyword cannot have a 'this' type that is 'void'." },
        A_this_parameter_must_be_the_first_parameter: { code: 2680, category: ts.DiagnosticCategory.Error, key: "A_this_parameter_must_be_the_first_parameter_2680", message: "A 'this' parameter must be the first parameter." },
        A_constructor_cannot_have_a_this_parameter: { code: 2681, category: ts.DiagnosticCategory.Error, key: "A_constructor_cannot_have_a_this_parameter_2681", message: "A constructor cannot have a 'this' parameter." },
        A_setter_cannot_have_a_this_parameter: { code: 2682, category: ts.DiagnosticCategory.Error, key: "A_setter_cannot_have_a_this_parameter_2682", message: "A setter cannot have a 'this' parameter." },
        this_implicitly_has_type_any_because_it_does_not_have_a_type_annotation: { code: 2683, category: ts.DiagnosticCategory.Error, key: "this_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_2683", message: "'this' implicitly has type 'any' because it does not have a type annotation." },
        The_this_context_of_type_0_is_not_assignable_to_method_s_this_of_type_1: { code: 2684, category: ts.DiagnosticCategory.Error, key: "The_this_context_of_type_0_is_not_assignable_to_method_s_this_of_type_1_2684", message: "The 'this' context of type '{0}' is not assignable to method's 'this' of type '{1}'." },
        The_this_types_of_each_signature_are_incompatible: { code: 2685, category: ts.DiagnosticCategory.Error, key: "The_this_types_of_each_signature_are_incompatible_2685", message: "The 'this' types of each signature are incompatible." },
        Import_declaration_0_is_using_private_name_1: { code: 4000, category: ts.DiagnosticCategory.Error, key: "Import_declaration_0_is_using_private_name_1_4000", message: "Import declaration '{0}' is using private name '{1}'." },
        Type_parameter_0_of_exported_class_has_or_is_using_private_name_1: { code: 4002, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_class_has_or_is_using_private_name_1_4002", message: "Type parameter '{0}' of exported class has or is using private name '{1}'." },
        Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4004, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_interface_has_or_is_using_private_name_1_4004", message: "Type parameter '{0}' of exported interface has or is using private name '{1}'." },
        Type_parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4006, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1_4006", message: "Type parameter '{0}' of constructor signature from exported interface has or is using private name '{1}'." },
        Type_parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4008, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1_4008", message: "Type parameter '{0}' of call signature from exported interface has or is using private name '{1}'." },
        Type_parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1: { code: 4010, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1_4010", message: "Type parameter '{0}' of public static method from exported class has or is using private name '{1}'." },
        Type_parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1: { code: 4012, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1_4012", message: "Type parameter '{0}' of public method from exported class has or is using private name '{1}'." },
        Type_parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1: { code: 4014, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1_4014", message: "Type parameter '{0}' of method from exported interface has or is using private name '{1}'." },
        Type_parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4016, category: ts.DiagnosticCategory.Error, key: "Type_parameter_0_of_exported_function_has_or_is_using_private_name_1_4016", message: "Type parameter '{0}' of exported function has or is using private name '{1}'." },
        Implements_clause_of_exported_class_0_has_or_is_using_private_name_1: { code: 4019, category: ts.DiagnosticCategory.Error, key: "Implements_clause_of_exported_class_0_has_or_is_using_private_name_1_4019", message: "Implements clause of exported class '{0}' has or is using private name '{1}'." },
        Extends_clause_of_exported_class_0_has_or_is_using_private_name_1: { code: 4020, category: ts.DiagnosticCategory.Error, key: "Extends_clause_of_exported_class_0_has_or_is_using_private_name_1_4020", message: "Extends clause of exported class '{0}' has or is using private name '{1}'." },
        Extends_clause_of_exported_interface_0_has_or_is_using_private_name_1: { code: 4022, category: ts.DiagnosticCategory.Error, key: "Extends_clause_of_exported_interface_0_has_or_is_using_private_name_1_4022", message: "Extends clause of exported interface '{0}' has or is using private name '{1}'." },
        Exported_variable_0_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4023, category: ts.DiagnosticCategory.Error, key: "Exported_variable_0_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named_4023", message: "Exported variable '{0}' has or is using name '{1}' from external module {2} but cannot be named." },
        Exported_variable_0_has_or_is_using_name_1_from_private_module_2: { code: 4024, category: ts.DiagnosticCategory.Error, key: "Exported_variable_0_has_or_is_using_name_1_from_private_module_2_4024", message: "Exported variable '{0}' has or is using name '{1}' from private module '{2}'." },
        Exported_variable_0_has_or_is_using_private_name_1: { code: 4025, category: ts.DiagnosticCategory.Error, key: "Exported_variable_0_has_or_is_using_private_name_1_4025", message: "Exported variable '{0}' has or is using private name '{1}'." },
        Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4026, category: ts.DiagnosticCategory.Error, key: "Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot__4026", message: "Public static property '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named." },
        Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4027, category: ts.DiagnosticCategory.Error, key: "Public_static_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2_4027", message: "Public static property '{0}' of exported class has or is using name '{1}' from private module '{2}'." },
        Public_static_property_0_of_exported_class_has_or_is_using_private_name_1: { code: 4028, category: ts.DiagnosticCategory.Error, key: "Public_static_property_0_of_exported_class_has_or_is_using_private_name_1_4028", message: "Public static property '{0}' of exported class has or is using private name '{1}'." },
        Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4029, category: ts.DiagnosticCategory.Error, key: "Public_property_0_of_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_name_4029", message: "Public property '{0}' of exported class has or is using name '{1}' from external module {2} but cannot be named." },
        Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4030, category: ts.DiagnosticCategory.Error, key: "Public_property_0_of_exported_class_has_or_is_using_name_1_from_private_module_2_4030", message: "Public property '{0}' of exported class has or is using name '{1}' from private module '{2}'." },
        Public_property_0_of_exported_class_has_or_is_using_private_name_1: { code: 4031, category: ts.DiagnosticCategory.Error, key: "Public_property_0_of_exported_class_has_or_is_using_private_name_1_4031", message: "Public property '{0}' of exported class has or is using private name '{1}'." },
        Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4032, category: ts.DiagnosticCategory.Error, key: "Property_0_of_exported_interface_has_or_is_using_name_1_from_private_module_2_4032", message: "Property '{0}' of exported interface has or is using name '{1}' from private module '{2}'." },
        Property_0_of_exported_interface_has_or_is_using_private_name_1: { code: 4033, category: ts.DiagnosticCategory.Error, key: "Property_0_of_exported_interface_has_or_is_using_private_name_1_4033", message: "Property '{0}' of exported interface has or is using private name '{1}'." },
        Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4034, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_name_1_from_private_4034", message: "Parameter '{0}' of public static property setter from exported class has or is using name '{1}' from private module '{2}'." },
        Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_private_name_1: { code: 4035, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_static_property_setter_from_exported_class_has_or_is_using_private_name_1_4035", message: "Parameter '{0}' of public static property setter from exported class has or is using private name '{1}'." },
        Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4036, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_name_1_from_private_module_4036", message: "Parameter '{0}' of public property setter from exported class has or is using name '{1}' from private module '{2}'." },
        Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_private_name_1: { code: 4037, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_property_setter_from_exported_class_has_or_is_using_private_name_1_4037", message: "Parameter '{0}' of public property setter from exported class has or is using private name '{1}'." },
        Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4038, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_externa_4038", message: "Return type of public static property getter from exported class has or is using name '{0}' from external module {1} but cannot be named." },
        Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4039, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_name_0_from_private_4039", message: "Return type of public static property getter from exported class has or is using name '{0}' from private module '{1}'." },
        Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_private_name_0: { code: 4040, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_property_getter_from_exported_class_has_or_is_using_private_name_0_4040", message: "Return type of public static property getter from exported class has or is using private name '{0}'." },
        Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4041, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_external_modul_4041", message: "Return type of public property getter from exported class has or is using name '{0}' from external module {1} but cannot be named." },
        Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4042, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_property_getter_from_exported_class_has_or_is_using_name_0_from_private_module_4042", message: "Return type of public property getter from exported class has or is using name '{0}' from private module '{1}'." },
        Return_type_of_public_property_getter_from_exported_class_has_or_is_using_private_name_0: { code: 4043, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_property_getter_from_exported_class_has_or_is_using_private_name_0_4043", message: "Return type of public property getter from exported class has or is using private name '{0}'." },
        Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4044, category: ts.DiagnosticCategory.Error, key: "Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_name_0_from_private_mod_4044", message: "Return type of constructor signature from exported interface has or is using name '{0}' from private module '{1}'." },
        Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_0: { code: 4045, category: ts.DiagnosticCategory.Error, key: "Return_type_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_0_4045", message: "Return type of constructor signature from exported interface has or is using private name '{0}'." },
        Return_type_of_call_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4046, category: ts.DiagnosticCategory.Error, key: "Return_type_of_call_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1_4046", message: "Return type of call signature from exported interface has or is using name '{0}' from private module '{1}'." },
        Return_type_of_call_signature_from_exported_interface_has_or_is_using_private_name_0: { code: 4047, category: ts.DiagnosticCategory.Error, key: "Return_type_of_call_signature_from_exported_interface_has_or_is_using_private_name_0_4047", message: "Return type of call signature from exported interface has or is using private name '{0}'." },
        Return_type_of_index_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4048, category: ts.DiagnosticCategory.Error, key: "Return_type_of_index_signature_from_exported_interface_has_or_is_using_name_0_from_private_module_1_4048", message: "Return type of index signature from exported interface has or is using name '{0}' from private module '{1}'." },
        Return_type_of_index_signature_from_exported_interface_has_or_is_using_private_name_0: { code: 4049, category: ts.DiagnosticCategory.Error, key: "Return_type_of_index_signature_from_exported_interface_has_or_is_using_private_name_0_4049", message: "Return type of index signature from exported interface has or is using private name '{0}'." },
        Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4050, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_external_module__4050", message: "Return type of public static method from exported class has or is using name '{0}' from external module {1} but cannot be named." },
        Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4051, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_method_from_exported_class_has_or_is_using_name_0_from_private_module_1_4051", message: "Return type of public static method from exported class has or is using name '{0}' from private module '{1}'." },
        Return_type_of_public_static_method_from_exported_class_has_or_is_using_private_name_0: { code: 4052, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_static_method_from_exported_class_has_or_is_using_private_name_0_4052", message: "Return type of public static method from exported class has or is using private name '{0}'." },
        Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4053, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_external_module_1_but_c_4053", message: "Return type of public method from exported class has or is using name '{0}' from external module {1} but cannot be named." },
        Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_private_module_1: { code: 4054, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_method_from_exported_class_has_or_is_using_name_0_from_private_module_1_4054", message: "Return type of public method from exported class has or is using name '{0}' from private module '{1}'." },
        Return_type_of_public_method_from_exported_class_has_or_is_using_private_name_0: { code: 4055, category: ts.DiagnosticCategory.Error, key: "Return_type_of_public_method_from_exported_class_has_or_is_using_private_name_0_4055", message: "Return type of public method from exported class has or is using private name '{0}'." },
        Return_type_of_method_from_exported_interface_has_or_is_using_name_0_from_private_module_1: { code: 4056, category: ts.DiagnosticCategory.Error, key: "Return_type_of_method_from_exported_interface_has_or_is_using_name_0_from_private_module_1_4056", message: "Return type of method from exported interface has or is using name '{0}' from private module '{1}'." },
        Return_type_of_method_from_exported_interface_has_or_is_using_private_name_0: { code: 4057, category: ts.DiagnosticCategory.Error, key: "Return_type_of_method_from_exported_interface_has_or_is_using_private_name_0_4057", message: "Return type of method from exported interface has or is using private name '{0}'." },
        Return_type_of_exported_function_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named: { code: 4058, category: ts.DiagnosticCategory.Error, key: "Return_type_of_exported_function_has_or_is_using_name_0_from_external_module_1_but_cannot_be_named_4058", message: "Return type of exported function has or is using name '{0}' from external module {1} but cannot be named." },
        Return_type_of_exported_function_has_or_is_using_name_0_from_private_module_1: { code: 4059, category: ts.DiagnosticCategory.Error, key: "Return_type_of_exported_function_has_or_is_using_name_0_from_private_module_1_4059", message: "Return type of exported function has or is using name '{0}' from private module '{1}'." },
        Return_type_of_exported_function_has_or_is_using_private_name_0: { code: 4060, category: ts.DiagnosticCategory.Error, key: "Return_type_of_exported_function_has_or_is_using_private_name_0_4060", message: "Return type of exported function has or is using private name '{0}'." },
        Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4061, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_can_4061", message: "Parameter '{0}' of constructor from exported class has or is using name '{1}' from external module {2} but cannot be named." },
        Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4062, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_constructor_from_exported_class_has_or_is_using_name_1_from_private_module_2_4062", message: "Parameter '{0}' of constructor from exported class has or is using name '{1}' from private module '{2}'." },
        Parameter_0_of_constructor_from_exported_class_has_or_is_using_private_name_1: { code: 4063, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_constructor_from_exported_class_has_or_is_using_private_name_1_4063", message: "Parameter '{0}' of constructor from exported class has or is using private name '{1}'." },
        Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4064, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_name_1_from_private_mod_4064", message: "Parameter '{0}' of constructor signature from exported interface has or is using name '{1}' from private module '{2}'." },
        Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4065, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_constructor_signature_from_exported_interface_has_or_is_using_private_name_1_4065", message: "Parameter '{0}' of constructor signature from exported interface has or is using private name '{1}'." },
        Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4066, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_name_1_from_private_module_2_4066", message: "Parameter '{0}' of call signature from exported interface has or is using name '{1}' from private module '{2}'." },
        Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1: { code: 4067, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_call_signature_from_exported_interface_has_or_is_using_private_name_1_4067", message: "Parameter '{0}' of call signature from exported interface has or is using private name '{1}'." },
        Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4068, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_external_module__4068", message: "Parameter '{0}' of public static method from exported class has or is using name '{1}' from external module {2} but cannot be named." },
        Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4069, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_name_1_from_private_module_2_4069", message: "Parameter '{0}' of public static method from exported class has or is using name '{1}' from private module '{2}'." },
        Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1: { code: 4070, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_static_method_from_exported_class_has_or_is_using_private_name_1_4070", message: "Parameter '{0}' of public static method from exported class has or is using private name '{1}'." },
        Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4071, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_external_module_2_but_c_4071", message: "Parameter '{0}' of public method from exported class has or is using name '{1}' from external module {2} but cannot be named." },
        Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_private_module_2: { code: 4072, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_method_from_exported_class_has_or_is_using_name_1_from_private_module_2_4072", message: "Parameter '{0}' of public method from exported class has or is using name '{1}' from private module '{2}'." },
        Parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1: { code: 4073, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_public_method_from_exported_class_has_or_is_using_private_name_1_4073", message: "Parameter '{0}' of public method from exported class has or is using private name '{1}'." },
        Parameter_0_of_method_from_exported_interface_has_or_is_using_name_1_from_private_module_2: { code: 4074, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_method_from_exported_interface_has_or_is_using_name_1_from_private_module_2_4074", message: "Parameter '{0}' of method from exported interface has or is using name '{1}' from private module '{2}'." },
        Parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1: { code: 4075, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_method_from_exported_interface_has_or_is_using_private_name_1_4075", message: "Parameter '{0}' of method from exported interface has or is using private name '{1}'." },
        Parameter_0_of_exported_function_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named: { code: 4076, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_name_1_from_external_module_2_but_cannot_be_named_4076", message: "Parameter '{0}' of exported function has or is using name '{1}' from external module {2} but cannot be named." },
        Parameter_0_of_exported_function_has_or_is_using_name_1_from_private_module_2: { code: 4077, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_name_1_from_private_module_2_4077", message: "Parameter '{0}' of exported function has or is using name '{1}' from private module '{2}'." },
        Parameter_0_of_exported_function_has_or_is_using_private_name_1: { code: 4078, category: ts.DiagnosticCategory.Error, key: "Parameter_0_of_exported_function_has_or_is_using_private_name_1_4078", message: "Parameter '{0}' of exported function has or is using private name '{1}'." },
        Exported_type_alias_0_has_or_is_using_private_name_1: { code: 4081, category: ts.DiagnosticCategory.Error, key: "Exported_type_alias_0_has_or_is_using_private_name_1_4081", message: "Exported type alias '{0}' has or is using private name '{1}'." },
        Default_export_of_the_module_has_or_is_using_private_name_0: { code: 4082, category: ts.DiagnosticCategory.Error, key: "Default_export_of_the_module_has_or_is_using_private_name_0_4082", message: "Default export of the module has or is using private name '{0}'." },
        Conflicting_library_definitions_for_0_found_at_1_and_2_Copy_the_correct_file_to_the_typings_folder_to_resolve_this_conflict: { code: 4090, category: ts.DiagnosticCategory.Message, key: "Conflicting_library_definitions_for_0_found_at_1_and_2_Copy_the_correct_file_to_the_typings_folder_t_4090", message: "Conflicting library definitions for '{0}' found at '{1}' and '{2}'. Copy the correct file to the 'typings' folder to resolve this conflict." },
        The_current_host_does_not_support_the_0_option: { code: 5001, category: ts.DiagnosticCategory.Error, key: "The_current_host_does_not_support_the_0_option_5001", message: "The current host does not support the '{0}' option." },
        Cannot_find_the_common_subdirectory_path_for_the_input_files: { code: 5009, category: ts.DiagnosticCategory.Error, key: "Cannot_find_the_common_subdirectory_path_for_the_input_files_5009", message: "Cannot find the common subdirectory path for the input files." },
        Cannot_read_file_0_Colon_1: { code: 5012, category: ts.DiagnosticCategory.Error, key: "Cannot_read_file_0_Colon_1_5012", message: "Cannot read file '{0}': {1}" },
        Unsupported_file_encoding: { code: 5013, category: ts.DiagnosticCategory.Error, key: "Unsupported_file_encoding_5013", message: "Unsupported file encoding." },
        Failed_to_parse_file_0_Colon_1: { code: 5014, category: ts.DiagnosticCategory.Error, key: "Failed_to_parse_file_0_Colon_1_5014", message: "Failed to parse file '{0}': {1}." },
        Unknown_compiler_option_0: { code: 5023, category: ts.DiagnosticCategory.Error, key: "Unknown_compiler_option_0_5023", message: "Unknown compiler option '{0}'." },
        Compiler_option_0_requires_a_value_of_type_1: { code: 5024, category: ts.DiagnosticCategory.Error, key: "Compiler_option_0_requires_a_value_of_type_1_5024", message: "Compiler option '{0}' requires a value of type {1}." },
        Could_not_write_file_0_Colon_1: { code: 5033, category: ts.DiagnosticCategory.Error, key: "Could_not_write_file_0_Colon_1_5033", message: "Could not write file '{0}': {1}" },
        Option_project_cannot_be_mixed_with_source_files_on_a_command_line: { code: 5042, category: ts.DiagnosticCategory.Error, key: "Option_project_cannot_be_mixed_with_source_files_on_a_command_line_5042", message: "Option 'project' cannot be mixed with source files on a command line." },
        Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES2015_or_higher: { code: 5047, category: ts.DiagnosticCategory.Error, key: "Option_isolatedModules_can_only_be_used_when_either_option_module_is_provided_or_option_target_is_ES_5047", message: "Option 'isolatedModules' can only be used when either option '--module' is provided or option 'target' is 'ES2015' or higher." },
        Option_inlineSources_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_provided: { code: 5051, category: ts.DiagnosticCategory.Error, key: "Option_inlineSources_can_only_be_used_when_either_option_inlineSourceMap_or_option_sourceMap_is_prov_5051", message: "Option 'inlineSources' can only be used when either option '--inlineSourceMap' or option '--sourceMap' is provided." },
        Option_0_cannot_be_specified_without_specifying_option_1: { code: 5052, category: ts.DiagnosticCategory.Error, key: "Option_0_cannot_be_specified_without_specifying_option_1_5052", message: "Option '{0}' cannot be specified without specifying option '{1}'." },
        Option_0_cannot_be_specified_with_option_1: { code: 5053, category: ts.DiagnosticCategory.Error, key: "Option_0_cannot_be_specified_with_option_1_5053", message: "Option '{0}' cannot be specified with option '{1}'." },
        A_tsconfig_json_file_is_already_defined_at_Colon_0: { code: 5054, category: ts.DiagnosticCategory.Error, key: "A_tsconfig_json_file_is_already_defined_at_Colon_0_5054", message: "A 'tsconfig.json' file is already defined at: '{0}'." },
        Cannot_write_file_0_because_it_would_overwrite_input_file: { code: 5055, category: ts.DiagnosticCategory.Error, key: "Cannot_write_file_0_because_it_would_overwrite_input_file_5055", message: "Cannot write file '{0}' because it would overwrite input file." },
        Cannot_write_file_0_because_it_would_be_overwritten_by_multiple_input_files: { code: 5056, category: ts.DiagnosticCategory.Error, key: "Cannot_write_file_0_because_it_would_be_overwritten_by_multiple_input_files_5056", message: "Cannot write file '{0}' because it would be overwritten by multiple input files." },
        Cannot_find_a_tsconfig_json_file_at_the_specified_directory_Colon_0: { code: 5057, category: ts.DiagnosticCategory.Error, key: "Cannot_find_a_tsconfig_json_file_at_the_specified_directory_Colon_0_5057", message: "Cannot find a tsconfig.json file at the specified directory: '{0}'" },
        The_specified_path_does_not_exist_Colon_0: { code: 5058, category: ts.DiagnosticCategory.Error, key: "The_specified_path_does_not_exist_Colon_0_5058", message: "The specified path does not exist: '{0}'" },
        Invalid_value_for_reactNamespace_0_is_not_a_valid_identifier: { code: 5059, category: ts.DiagnosticCategory.Error, key: "Invalid_value_for_reactNamespace_0_is_not_a_valid_identifier_5059", message: "Invalid value for '--reactNamespace'. '{0}' is not a valid identifier." },
        Option_paths_cannot_be_used_without_specifying_baseUrl_option: { code: 5060, category: ts.DiagnosticCategory.Error, key: "Option_paths_cannot_be_used_without_specifying_baseUrl_option_5060", message: "Option 'paths' cannot be used without specifying '--baseUrl' option." },
        Pattern_0_can_have_at_most_one_Asterisk_character: { code: 5061, category: ts.DiagnosticCategory.Error, key: "Pattern_0_can_have_at_most_one_Asterisk_character_5061", message: "Pattern '{0}' can have at most one '*' character" },
        Substitution_0_in_pattern_1_in_can_have_at_most_one_Asterisk_character: { code: 5062, category: ts.DiagnosticCategory.Error, key: "Substitution_0_in_pattern_1_in_can_have_at_most_one_Asterisk_character_5062", message: "Substitution '{0}' in pattern '{1}' in can have at most one '*' character" },
        Substututions_for_pattern_0_should_be_an_array: { code: 5063, category: ts.DiagnosticCategory.Error, key: "Substututions_for_pattern_0_should_be_an_array_5063", message: "Substututions for pattern '{0}' should be an array." },
        Substitution_0_for_pattern_1_has_incorrect_type_expected_string_got_2: { code: 5064, category: ts.DiagnosticCategory.Error, key: "Substitution_0_for_pattern_1_has_incorrect_type_expected_string_got_2_5064", message: "Substitution '{0}' for pattern '{1}' has incorrect type, expected 'string', got '{2}'." },
        Concatenate_and_emit_output_to_single_file: { code: 6001, category: ts.DiagnosticCategory.Message, key: "Concatenate_and_emit_output_to_single_file_6001", message: "Concatenate and emit output to single file." },
        Generates_corresponding_d_ts_file: { code: 6002, category: ts.DiagnosticCategory.Message, key: "Generates_corresponding_d_ts_file_6002", message: "Generates corresponding '.d.ts' file." },
        Specify_the_location_where_debugger_should_locate_map_files_instead_of_generated_locations: { code: 6003, category: ts.DiagnosticCategory.Message, key: "Specify_the_location_where_debugger_should_locate_map_files_instead_of_generated_locations_6003", message: "Specify the location where debugger should locate map files instead of generated locations." },
        Specify_the_location_where_debugger_should_locate_TypeScript_files_instead_of_source_locations: { code: 6004, category: ts.DiagnosticCategory.Message, key: "Specify_the_location_where_debugger_should_locate_TypeScript_files_instead_of_source_locations_6004", message: "Specify the location where debugger should locate TypeScript files instead of source locations." },
        Watch_input_files: { code: 6005, category: ts.DiagnosticCategory.Message, key: "Watch_input_files_6005", message: "Watch input files." },
        Redirect_output_structure_to_the_directory: { code: 6006, category: ts.DiagnosticCategory.Message, key: "Redirect_output_structure_to_the_directory_6006", message: "Redirect output structure to the directory." },
        Do_not_erase_const_enum_declarations_in_generated_code: { code: 6007, category: ts.DiagnosticCategory.Message, key: "Do_not_erase_const_enum_declarations_in_generated_code_6007", message: "Do not erase const enum declarations in generated code." },
        Do_not_emit_outputs_if_any_errors_were_reported: { code: 6008, category: ts.DiagnosticCategory.Message, key: "Do_not_emit_outputs_if_any_errors_were_reported_6008", message: "Do not emit outputs if any errors were reported." },
        Do_not_emit_comments_to_output: { code: 6009, category: ts.DiagnosticCategory.Message, key: "Do_not_emit_comments_to_output_6009", message: "Do not emit comments to output." },
        Do_not_emit_outputs: { code: 6010, category: ts.DiagnosticCategory.Message, key: "Do_not_emit_outputs_6010", message: "Do not emit outputs." },
        Allow_default_imports_from_modules_with_no_default_export_This_does_not_affect_code_emit_just_typechecking: { code: 6011, category: ts.DiagnosticCategory.Message, key: "Allow_default_imports_from_modules_with_no_default_export_This_does_not_affect_code_emit_just_typech_6011", message: "Allow default imports from modules with no default export. This does not affect code emit, just typechecking." },
        Specify_ECMAScript_target_version_Colon_ES3_default_ES5_or_ES2015: { code: 6015, category: ts.DiagnosticCategory.Message, key: "Specify_ECMAScript_target_version_Colon_ES3_default_ES5_or_ES2015_6015", message: "Specify ECMAScript target version: 'ES3' (default), 'ES5', or 'ES2015'" },
        Specify_module_code_generation_Colon_commonjs_amd_system_umd_or_es2015: { code: 6016, category: ts.DiagnosticCategory.Message, key: "Specify_module_code_generation_Colon_commonjs_amd_system_umd_or_es2015_6016", message: "Specify module code generation: 'commonjs', 'amd', 'system', 'umd' or 'es2015'" },
        Print_this_message: { code: 6017, category: ts.DiagnosticCategory.Message, key: "Print_this_message_6017", message: "Print this message." },
        Print_the_compiler_s_version: { code: 6019, category: ts.DiagnosticCategory.Message, key: "Print_the_compiler_s_version_6019", message: "Print the compiler's version." },
        Compile_the_project_in_the_given_directory: { code: 6020, category: ts.DiagnosticCategory.Message, key: "Compile_the_project_in_the_given_directory_6020", message: "Compile the project in the given directory." },
        Syntax_Colon_0: { code: 6023, category: ts.DiagnosticCategory.Message, key: "Syntax_Colon_0_6023", message: "Syntax: {0}" },
        options: { code: 6024, category: ts.DiagnosticCategory.Message, key: "options_6024", message: "options" },
        file: { code: 6025, category: ts.DiagnosticCategory.Message, key: "file_6025", message: "file" },
        Examples_Colon_0: { code: 6026, category: ts.DiagnosticCategory.Message, key: "Examples_Colon_0_6026", message: "Examples: {0}" },
        Options_Colon: { code: 6027, category: ts.DiagnosticCategory.Message, key: "Options_Colon_6027", message: "Options:" },
        Version_0: { code: 6029, category: ts.DiagnosticCategory.Message, key: "Version_0_6029", message: "Version {0}" },
        Insert_command_line_options_and_files_from_a_file: { code: 6030, category: ts.DiagnosticCategory.Message, key: "Insert_command_line_options_and_files_from_a_file_6030", message: "Insert command line options and files from a file." },
        File_change_detected_Starting_incremental_compilation: { code: 6032, category: ts.DiagnosticCategory.Message, key: "File_change_detected_Starting_incremental_compilation_6032", message: "File change detected. Starting incremental compilation..." },
        KIND: { code: 6034, category: ts.DiagnosticCategory.Message, key: "KIND_6034", message: "KIND" },
        FILE: { code: 6035, category: ts.DiagnosticCategory.Message, key: "FILE_6035", message: "FILE" },
        VERSION: { code: 6036, category: ts.DiagnosticCategory.Message, key: "VERSION_6036", message: "VERSION" },
        LOCATION: { code: 6037, category: ts.DiagnosticCategory.Message, key: "LOCATION_6037", message: "LOCATION" },
        DIRECTORY: { code: 6038, category: ts.DiagnosticCategory.Message, key: "DIRECTORY_6038", message: "DIRECTORY" },
        Compilation_complete_Watching_for_file_changes: { code: 6042, category: ts.DiagnosticCategory.Message, key: "Compilation_complete_Watching_for_file_changes_6042", message: "Compilation complete. Watching for file changes." },
        Generates_corresponding_map_file: { code: 6043, category: ts.DiagnosticCategory.Message, key: "Generates_corresponding_map_file_6043", message: "Generates corresponding '.map' file." },
        Compiler_option_0_expects_an_argument: { code: 6044, category: ts.DiagnosticCategory.Error, key: "Compiler_option_0_expects_an_argument_6044", message: "Compiler option '{0}' expects an argument." },
        Unterminated_quoted_string_in_response_file_0: { code: 6045, category: ts.DiagnosticCategory.Error, key: "Unterminated_quoted_string_in_response_file_0_6045", message: "Unterminated quoted string in response file '{0}'." },
        Argument_for_0_option_must_be_Colon_1: { code: 6046, category: ts.DiagnosticCategory.Error, key: "Argument_for_0_option_must_be_Colon_1_6046", message: "Argument for '{0}' option must be: {1}" },
        Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1: { code: 6048, category: ts.DiagnosticCategory.Error, key: "Locale_must_be_of_the_form_language_or_language_territory_For_example_0_or_1_6048", message: "Locale must be of the form <language> or <language>-<territory>. For example '{0}' or '{1}'." },
        Unsupported_locale_0: { code: 6049, category: ts.DiagnosticCategory.Error, key: "Unsupported_locale_0_6049", message: "Unsupported locale '{0}'." },
        Unable_to_open_file_0: { code: 6050, category: ts.DiagnosticCategory.Error, key: "Unable_to_open_file_0_6050", message: "Unable to open file '{0}'." },
        Corrupted_locale_file_0: { code: 6051, category: ts.DiagnosticCategory.Error, key: "Corrupted_locale_file_0_6051", message: "Corrupted locale file {0}." },
        Raise_error_on_expressions_and_declarations_with_an_implied_any_type: { code: 6052, category: ts.DiagnosticCategory.Message, key: "Raise_error_on_expressions_and_declarations_with_an_implied_any_type_6052", message: "Raise error on expressions and declarations with an implied 'any' type." },
        File_0_not_found: { code: 6053, category: ts.DiagnosticCategory.Error, key: "File_0_not_found_6053", message: "File '{0}' not found." },
        File_0_has_unsupported_extension_The_only_supported_extensions_are_1: { code: 6054, category: ts.DiagnosticCategory.Error, key: "File_0_has_unsupported_extension_The_only_supported_extensions_are_1_6054", message: "File '{0}' has unsupported extension. The only supported extensions are {1}." },
        Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures: { code: 6055, category: ts.DiagnosticCategory.Message, key: "Suppress_noImplicitAny_errors_for_indexing_objects_lacking_index_signatures_6055", message: "Suppress noImplicitAny errors for indexing objects lacking index signatures." },
        Do_not_emit_declarations_for_code_that_has_an_internal_annotation: { code: 6056, category: ts.DiagnosticCategory.Message, key: "Do_not_emit_declarations_for_code_that_has_an_internal_annotation_6056", message: "Do not emit declarations for code that has an '@internal' annotation." },
        Specify_the_root_directory_of_input_files_Use_to_control_the_output_directory_structure_with_outDir: { code: 6058, category: ts.DiagnosticCategory.Message, key: "Specify_the_root_directory_of_input_files_Use_to_control_the_output_directory_structure_with_outDir_6058", message: "Specify the root directory of input files. Use to control the output directory structure with --outDir." },
        File_0_is_not_under_rootDir_1_rootDir_is_expected_to_contain_all_source_files: { code: 6059, category: ts.DiagnosticCategory.Error, key: "File_0_is_not_under_rootDir_1_rootDir_is_expected_to_contain_all_source_files_6059", message: "File '{0}' is not under 'rootDir' '{1}'. 'rootDir' is expected to contain all source files." },
        Specify_the_end_of_line_sequence_to_be_used_when_emitting_files_Colon_CRLF_dos_or_LF_unix: { code: 6060, category: ts.DiagnosticCategory.Message, key: "Specify_the_end_of_line_sequence_to_be_used_when_emitting_files_Colon_CRLF_dos_or_LF_unix_6060", message: "Specify the end of line sequence to be used when emitting files: 'CRLF' (dos) or 'LF' (unix)." },
        NEWLINE: { code: 6061, category: ts.DiagnosticCategory.Message, key: "NEWLINE_6061", message: "NEWLINE" },
        Option_0_can_only_be_specified_in_tsconfig_json_file: { code: 6064, category: ts.DiagnosticCategory.Error, key: "Option_0_can_only_be_specified_in_tsconfig_json_file_6064", message: "Option '{0}' can only be specified in 'tsconfig.json' file." },
        Enables_experimental_support_for_ES7_decorators: { code: 6065, category: ts.DiagnosticCategory.Message, key: "Enables_experimental_support_for_ES7_decorators_6065", message: "Enables experimental support for ES7 decorators." },
        Enables_experimental_support_for_emitting_type_metadata_for_decorators: { code: 6066, category: ts.DiagnosticCategory.Message, key: "Enables_experimental_support_for_emitting_type_metadata_for_decorators_6066", message: "Enables experimental support for emitting type metadata for decorators." },
        Enables_experimental_support_for_ES7_async_functions: { code: 6068, category: ts.DiagnosticCategory.Message, key: "Enables_experimental_support_for_ES7_async_functions_6068", message: "Enables experimental support for ES7 async functions." },
        Specify_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6: { code: 6069, category: ts.DiagnosticCategory.Message, key: "Specify_module_resolution_strategy_Colon_node_Node_js_or_classic_TypeScript_pre_1_6_6069", message: "Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6)." },
        Initializes_a_TypeScript_project_and_creates_a_tsconfig_json_file: { code: 6070, category: ts.DiagnosticCategory.Message, key: "Initializes_a_TypeScript_project_and_creates_a_tsconfig_json_file_6070", message: "Initializes a TypeScript project and creates a tsconfig.json file." },
        Successfully_created_a_tsconfig_json_file: { code: 6071, category: ts.DiagnosticCategory.Message, key: "Successfully_created_a_tsconfig_json_file_6071", message: "Successfully created a tsconfig.json file." },
        Suppress_excess_property_checks_for_object_literals: { code: 6072, category: ts.DiagnosticCategory.Message, key: "Suppress_excess_property_checks_for_object_literals_6072", message: "Suppress excess property checks for object literals." },
        Stylize_errors_and_messages_using_color_and_context_experimental: { code: 6073, category: ts.DiagnosticCategory.Message, key: "Stylize_errors_and_messages_using_color_and_context_experimental_6073", message: "Stylize errors and messages using color and context. (experimental)" },
        Do_not_report_errors_on_unused_labels: { code: 6074, category: ts.DiagnosticCategory.Message, key: "Do_not_report_errors_on_unused_labels_6074", message: "Do not report errors on unused labels." },
        Report_error_when_not_all_code_paths_in_function_return_a_value: { code: 6075, category: ts.DiagnosticCategory.Message, key: "Report_error_when_not_all_code_paths_in_function_return_a_value_6075", message: "Report error when not all code paths in function return a value." },
        Report_errors_for_fallthrough_cases_in_switch_statement: { code: 6076, category: ts.DiagnosticCategory.Message, key: "Report_errors_for_fallthrough_cases_in_switch_statement_6076", message: "Report errors for fallthrough cases in switch statement." },
        Do_not_report_errors_on_unreachable_code: { code: 6077, category: ts.DiagnosticCategory.Message, key: "Do_not_report_errors_on_unreachable_code_6077", message: "Do not report errors on unreachable code." },
        Disallow_inconsistently_cased_references_to_the_same_file: { code: 6078, category: ts.DiagnosticCategory.Message, key: "Disallow_inconsistently_cased_references_to_the_same_file_6078", message: "Disallow inconsistently-cased references to the same file." },
        Specify_library_files_to_be_included_in_the_compilation_Colon: { code: 6079, category: ts.DiagnosticCategory.Message, key: "Specify_library_files_to_be_included_in_the_compilation_Colon_6079", message: "Specify library files to be included in the compilation: " },
        Specify_JSX_code_generation_Colon_preserve_or_react: { code: 6080, category: ts.DiagnosticCategory.Message, key: "Specify_JSX_code_generation_Colon_preserve_or_react_6080", message: "Specify JSX code generation: 'preserve' or 'react'" },
        Only_amd_and_system_modules_are_supported_alongside_0: { code: 6082, category: ts.DiagnosticCategory.Error, key: "Only_amd_and_system_modules_are_supported_alongside_0_6082", message: "Only 'amd' and 'system' modules are supported alongside --{0}." },
        Base_directory_to_resolve_non_absolute_module_names: { code: 6083, category: ts.DiagnosticCategory.Message, key: "Base_directory_to_resolve_non_absolute_module_names_6083", message: "Base directory to resolve non-absolute module names." },
        Specify_the_object_invoked_for_createElement_and_spread_when_targeting_react_JSX_emit: { code: 6084, category: ts.DiagnosticCategory.Message, key: "Specify_the_object_invoked_for_createElement_and_spread_when_targeting_react_JSX_emit_6084", message: "Specify the object invoked for createElement and __spread when targeting 'react' JSX emit" },
        Enable_tracing_of_the_name_resolution_process: { code: 6085, category: ts.DiagnosticCategory.Message, key: "Enable_tracing_of_the_name_resolution_process_6085", message: "Enable tracing of the name resolution process." },
        Resolving_module_0_from_1: { code: 6086, category: ts.DiagnosticCategory.Message, key: "Resolving_module_0_from_1_6086", message: "======== Resolving module '{0}' from '{1}'. ========" },
        Explicitly_specified_module_resolution_kind_Colon_0: { code: 6087, category: ts.DiagnosticCategory.Message, key: "Explicitly_specified_module_resolution_kind_Colon_0_6087", message: "Explicitly specified module resolution kind: '{0}'." },
        Module_resolution_kind_is_not_specified_using_0: { code: 6088, category: ts.DiagnosticCategory.Message, key: "Module_resolution_kind_is_not_specified_using_0_6088", message: "Module resolution kind is not specified, using '{0}'." },
        Module_name_0_was_successfully_resolved_to_1: { code: 6089, category: ts.DiagnosticCategory.Message, key: "Module_name_0_was_successfully_resolved_to_1_6089", message: "======== Module name '{0}' was successfully resolved to '{1}'. ========" },
        Module_name_0_was_not_resolved: { code: 6090, category: ts.DiagnosticCategory.Message, key: "Module_name_0_was_not_resolved_6090", message: "======== Module name '{0}' was not resolved. ========" },
        paths_option_is_specified_looking_for_a_pattern_to_match_module_name_0: { code: 6091, category: ts.DiagnosticCategory.Message, key: "paths_option_is_specified_looking_for_a_pattern_to_match_module_name_0_6091", message: "'paths' option is specified, looking for a pattern to match module name '{0}'." },
        Module_name_0_matched_pattern_1: { code: 6092, category: ts.DiagnosticCategory.Message, key: "Module_name_0_matched_pattern_1_6092", message: "Module name '{0}', matched pattern '{1}'." },
        Trying_substitution_0_candidate_module_location_Colon_1: { code: 6093, category: ts.DiagnosticCategory.Message, key: "Trying_substitution_0_candidate_module_location_Colon_1_6093", message: "Trying substitution '{0}', candidate module location: '{1}'." },
        Resolving_module_name_0_relative_to_base_url_1_2: { code: 6094, category: ts.DiagnosticCategory.Message, key: "Resolving_module_name_0_relative_to_base_url_1_2_6094", message: "Resolving module name '{0}' relative to base url '{1}' - '{2}'." },
        Loading_module_as_file_Slash_folder_candidate_module_location_0: { code: 6095, category: ts.DiagnosticCategory.Message, key: "Loading_module_as_file_Slash_folder_candidate_module_location_0_6095", message: "Loading module as file / folder, candidate module location '{0}'." },
        File_0_does_not_exist: { code: 6096, category: ts.DiagnosticCategory.Message, key: "File_0_does_not_exist_6096", message: "File '{0}' does not exist." },
        File_0_exist_use_it_as_a_name_resolution_result: { code: 6097, category: ts.DiagnosticCategory.Message, key: "File_0_exist_use_it_as_a_name_resolution_result_6097", message: "File '{0}' exist - use it as a name resolution result." },
        Loading_module_0_from_node_modules_folder: { code: 6098, category: ts.DiagnosticCategory.Message, key: "Loading_module_0_from_node_modules_folder_6098", message: "Loading module '{0}' from 'node_modules' folder." },
        Found_package_json_at_0: { code: 6099, category: ts.DiagnosticCategory.Message, key: "Found_package_json_at_0_6099", message: "Found 'package.json' at '{0}'." },
        package_json_does_not_have_types_field: { code: 6100, category: ts.DiagnosticCategory.Message, key: "package_json_does_not_have_types_field_6100", message: "'package.json' does not have 'types' field." },
        package_json_has_0_field_1_that_references_2: { code: 6101, category: ts.DiagnosticCategory.Message, key: "package_json_has_0_field_1_that_references_2_6101", message: "'package.json' has '{0}' field '{1}' that references '{2}'." },
        Allow_javascript_files_to_be_compiled: { code: 6102, category: ts.DiagnosticCategory.Message, key: "Allow_javascript_files_to_be_compiled_6102", message: "Allow javascript files to be compiled." },
        Option_0_should_have_array_of_strings_as_a_value: { code: 6103, category: ts.DiagnosticCategory.Error, key: "Option_0_should_have_array_of_strings_as_a_value_6103", message: "Option '{0}' should have array of strings as a value." },
        Checking_if_0_is_the_longest_matching_prefix_for_1_2: { code: 6104, category: ts.DiagnosticCategory.Message, key: "Checking_if_0_is_the_longest_matching_prefix_for_1_2_6104", message: "Checking if '{0}' is the longest matching prefix for '{1}' - '{2}'." },
        Expected_type_of_0_field_in_package_json_to_be_string_got_1: { code: 6105, category: ts.DiagnosticCategory.Message, key: "Expected_type_of_0_field_in_package_json_to_be_string_got_1_6105", message: "Expected type of '{0}' field in 'package.json' to be 'string', got '{1}'." },
        baseUrl_option_is_set_to_0_using_this_value_to_resolve_non_relative_module_name_1: { code: 6106, category: ts.DiagnosticCategory.Message, key: "baseUrl_option_is_set_to_0_using_this_value_to_resolve_non_relative_module_name_1_6106", message: "'baseUrl' option is set to '{0}', using this value to resolve non-relative module name '{1}'" },
        rootDirs_option_is_set_using_it_to_resolve_relative_module_name_0: { code: 6107, category: ts.DiagnosticCategory.Message, key: "rootDirs_option_is_set_using_it_to_resolve_relative_module_name_0_6107", message: "'rootDirs' option is set, using it to resolve relative module name '{0}'" },
        Longest_matching_prefix_for_0_is_1: { code: 6108, category: ts.DiagnosticCategory.Message, key: "Longest_matching_prefix_for_0_is_1_6108", message: "Longest matching prefix for '{0}' is '{1}'" },
        Loading_0_from_the_root_dir_1_candidate_location_2: { code: 6109, category: ts.DiagnosticCategory.Message, key: "Loading_0_from_the_root_dir_1_candidate_location_2_6109", message: "Loading '{0}' from the root dir '{1}', candidate location '{2}'" },
        Trying_other_entries_in_rootDirs: { code: 6110, category: ts.DiagnosticCategory.Message, key: "Trying_other_entries_in_rootDirs_6110", message: "Trying other entries in 'rootDirs'" },
        Module_resolution_using_rootDirs_has_failed: { code: 6111, category: ts.DiagnosticCategory.Message, key: "Module_resolution_using_rootDirs_has_failed_6111", message: "Module resolution using 'rootDirs' has failed" },
        Do_not_emit_use_strict_directives_in_module_output: { code: 6112, category: ts.DiagnosticCategory.Message, key: "Do_not_emit_use_strict_directives_in_module_output_6112", message: "Do not emit 'use strict' directives in module output." },
        Enable_strict_null_checks: { code: 6113, category: ts.DiagnosticCategory.Message, key: "Enable_strict_null_checks_6113", message: "Enable strict null checks." },
        Unknown_option_excludes_Did_you_mean_exclude: { code: 6114, category: ts.DiagnosticCategory.Error, key: "Unknown_option_excludes_Did_you_mean_exclude_6114", message: "Unknown option 'excludes'. Did you mean 'exclude'?" },
        Raise_error_on_this_expressions_with_an_implied_any_type: { code: 6115, category: ts.DiagnosticCategory.Message, key: "Raise_error_on_this_expressions_with_an_implied_any_type_6115", message: "Raise error on 'this' expressions with an implied 'any' type." },
        Resolving_type_reference_directive_0_containing_file_1_root_directory_2: { code: 6116, category: ts.DiagnosticCategory.Message, key: "Resolving_type_reference_directive_0_containing_file_1_root_directory_2_6116", message: "======== Resolving type reference directive '{0}', containing file '{1}', root directory '{2}'. ========" },
        Resolving_using_primary_search_paths: { code: 6117, category: ts.DiagnosticCategory.Message, key: "Resolving_using_primary_search_paths_6117", message: "Resolving using primary search paths..." },
        Resolving_from_node_modules_folder: { code: 6118, category: ts.DiagnosticCategory.Message, key: "Resolving_from_node_modules_folder_6118", message: "Resolving from node_modules folder..." },
        Type_reference_directive_0_was_successfully_resolved_to_1_primary_Colon_2: { code: 6119, category: ts.DiagnosticCategory.Message, key: "Type_reference_directive_0_was_successfully_resolved_to_1_primary_Colon_2_6119", message: "======== Type reference directive '{0}' was successfully resolved to '{1}', primary: {2}. ========" },
        Type_reference_directive_0_was_not_resolved: { code: 6120, category: ts.DiagnosticCategory.Message, key: "Type_reference_directive_0_was_not_resolved_6120", message: "======== Type reference directive '{0}' was not resolved. ========" },
        Resolving_with_primary_search_path_0: { code: 6121, category: ts.DiagnosticCategory.Message, key: "Resolving_with_primary_search_path_0_6121", message: "Resolving with primary search path '{0}'" },
        Root_directory_cannot_be_determined_skipping_primary_search_paths: { code: 6122, category: ts.DiagnosticCategory.Message, key: "Root_directory_cannot_be_determined_skipping_primary_search_paths_6122", message: "Root directory cannot be determined, skipping primary search paths." },
        Resolving_type_reference_directive_0_containing_file_1_root_directory_not_set: { code: 6123, category: ts.DiagnosticCategory.Message, key: "Resolving_type_reference_directive_0_containing_file_1_root_directory_not_set_6123", message: "======== Resolving type reference directive '{0}', containing file '{1}', root directory not set. ========" },
        Type_declaration_files_to_be_included_in_compilation: { code: 6124, category: ts.DiagnosticCategory.Message, key: "Type_declaration_files_to_be_included_in_compilation_6124", message: "Type declaration files to be included in compilation." },
        Looking_up_in_node_modules_folder_initial_location_0: { code: 6125, category: ts.DiagnosticCategory.Message, key: "Looking_up_in_node_modules_folder_initial_location_0_6125", message: "Looking up in 'node_modules' folder, initial location '{0}'" },
        Containing_file_is_not_specified_and_root_directory_cannot_be_determined_skipping_lookup_in_node_modules_folder: { code: 6126, category: ts.DiagnosticCategory.Message, key: "Containing_file_is_not_specified_and_root_directory_cannot_be_determined_skipping_lookup_in_node_mod_6126", message: "Containing file is not specified and root directory cannot be determined, skipping lookup in 'node_modules' folder." },
        Resolving_type_reference_directive_0_containing_file_not_set_root_directory_1: { code: 6127, category: ts.DiagnosticCategory.Message, key: "Resolving_type_reference_directive_0_containing_file_not_set_root_directory_1_6127", message: "======== Resolving type reference directive '{0}', containing file not set, root directory '{1}'. ========" },
        Resolving_type_reference_directive_0_containing_file_not_set_root_directory_not_set: { code: 6128, category: ts.DiagnosticCategory.Message, key: "Resolving_type_reference_directive_0_containing_file_not_set_root_directory_not_set_6128", message: "======== Resolving type reference directive '{0}', containing file not set, root directory not set. ========" },
        Variable_0_implicitly_has_an_1_type: { code: 7005, category: ts.DiagnosticCategory.Error, key: "Variable_0_implicitly_has_an_1_type_7005", message: "Variable '{0}' implicitly has an '{1}' type." },
        Parameter_0_implicitly_has_an_1_type: { code: 7006, category: ts.DiagnosticCategory.Error, key: "Parameter_0_implicitly_has_an_1_type_7006", message: "Parameter '{0}' implicitly has an '{1}' type." },
        Member_0_implicitly_has_an_1_type: { code: 7008, category: ts.DiagnosticCategory.Error, key: "Member_0_implicitly_has_an_1_type_7008", message: "Member '{0}' implicitly has an '{1}' type." },
        new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type: { code: 7009, category: ts.DiagnosticCategory.Error, key: "new_expression_whose_target_lacks_a_construct_signature_implicitly_has_an_any_type_7009", message: "'new' expression, whose target lacks a construct signature, implicitly has an 'any' type." },
        _0_which_lacks_return_type_annotation_implicitly_has_an_1_return_type: { code: 7010, category: ts.DiagnosticCategory.Error, key: "_0_which_lacks_return_type_annotation_implicitly_has_an_1_return_type_7010", message: "'{0}', which lacks return-type annotation, implicitly has an '{1}' return type." },
        Function_expression_which_lacks_return_type_annotation_implicitly_has_an_0_return_type: { code: 7011, category: ts.DiagnosticCategory.Error, key: "Function_expression_which_lacks_return_type_annotation_implicitly_has_an_0_return_type_7011", message: "Function expression, which lacks return-type annotation, implicitly has an '{0}' return type." },
        Construct_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type: { code: 7013, category: ts.DiagnosticCategory.Error, key: "Construct_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type_7013", message: "Construct signature, which lacks return-type annotation, implicitly has an 'any' return type." },
        Element_implicitly_has_an_any_type_because_index_expression_is_not_of_type_number: { code: 7015, category: ts.DiagnosticCategory.Error, key: "Element_implicitly_has_an_any_type_because_index_expression_is_not_of_type_number_7015", message: "Element implicitly has an 'any' type because index expression is not of type 'number'." },
        Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_type_annotation: { code: 7016, category: ts.DiagnosticCategory.Error, key: "Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_type_annotation_7016", message: "Property '{0}' implicitly has type 'any', because its 'set' accessor lacks a type annotation." },
        Index_signature_of_object_type_implicitly_has_an_any_type: { code: 7017, category: ts.DiagnosticCategory.Error, key: "Index_signature_of_object_type_implicitly_has_an_any_type_7017", message: "Index signature of object type implicitly has an 'any' type." },
        Object_literal_s_property_0_implicitly_has_an_1_type: { code: 7018, category: ts.DiagnosticCategory.Error, key: "Object_literal_s_property_0_implicitly_has_an_1_type_7018", message: "Object literal's property '{0}' implicitly has an '{1}' type." },
        Rest_parameter_0_implicitly_has_an_any_type: { code: 7019, category: ts.DiagnosticCategory.Error, key: "Rest_parameter_0_implicitly_has_an_any_type_7019", message: "Rest parameter '{0}' implicitly has an 'any[]' type." },
        Call_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type: { code: 7020, category: ts.DiagnosticCategory.Error, key: "Call_signature_which_lacks_return_type_annotation_implicitly_has_an_any_return_type_7020", message: "Call signature, which lacks return-type annotation, implicitly has an 'any' return type." },
        _0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or_indirectly_in_its_own_initializer: { code: 7022, category: ts.DiagnosticCategory.Error, key: "_0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or__7022", message: "'{0}' implicitly has type 'any' because it does not have a type annotation and is referenced directly or indirectly in its own initializer." },
        _0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions: { code: 7023, category: ts.DiagnosticCategory.Error, key: "_0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_reference_7023", message: "'{0}' implicitly has return type 'any' because it does not have a return type annotation and is referenced directly or indirectly in one of its return expressions." },
        Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions: { code: 7024, category: ts.DiagnosticCategory.Error, key: "Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_ref_7024", message: "Function implicitly has return type 'any' because it does not have a return type annotation and is referenced directly or indirectly in one of its return expressions." },
        Generator_implicitly_has_type_0_because_it_does_not_yield_any_values_Consider_supplying_a_return_type: { code: 7025, category: ts.DiagnosticCategory.Error, key: "Generator_implicitly_has_type_0_because_it_does_not_yield_any_values_Consider_supplying_a_return_typ_7025", message: "Generator implicitly has type '{0}' because it does not yield any values. Consider supplying a return type." },
        JSX_element_implicitly_has_type_any_because_no_interface_JSX_0_exists: { code: 7026, category: ts.DiagnosticCategory.Error, key: "JSX_element_implicitly_has_type_any_because_no_interface_JSX_0_exists_7026", message: "JSX element implicitly has type 'any' because no interface 'JSX.{0}' exists" },
        Unreachable_code_detected: { code: 7027, category: ts.DiagnosticCategory.Error, key: "Unreachable_code_detected_7027", message: "Unreachable code detected." },
        Unused_label: { code: 7028, category: ts.DiagnosticCategory.Error, key: "Unused_label_7028", message: "Unused label." },
        Fallthrough_case_in_switch: { code: 7029, category: ts.DiagnosticCategory.Error, key: "Fallthrough_case_in_switch_7029", message: "Fallthrough case in switch." },
        Not_all_code_paths_return_a_value: { code: 7030, category: ts.DiagnosticCategory.Error, key: "Not_all_code_paths_return_a_value_7030", message: "Not all code paths return a value." },
        Binding_element_0_implicitly_has_an_1_type: { code: 7031, category: ts.DiagnosticCategory.Error, key: "Binding_element_0_implicitly_has_an_1_type_7031", message: "Binding element '{0}' implicitly has an '{1}' type." },
        You_cannot_rename_this_element: { code: 8000, category: ts.DiagnosticCategory.Error, key: "You_cannot_rename_this_element_8000", message: "You cannot rename this element." },
        You_cannot_rename_elements_that_are_defined_in_the_standard_TypeScript_library: { code: 8001, category: ts.DiagnosticCategory.Error, key: "You_cannot_rename_elements_that_are_defined_in_the_standard_TypeScript_library_8001", message: "You cannot rename elements that are defined in the standard TypeScript library." },
        import_can_only_be_used_in_a_ts_file: { code: 8002, category: ts.DiagnosticCategory.Error, key: "import_can_only_be_used_in_a_ts_file_8002", message: "'import ... =' can only be used in a .ts file." },
        export_can_only_be_used_in_a_ts_file: { code: 8003, category: ts.DiagnosticCategory.Error, key: "export_can_only_be_used_in_a_ts_file_8003", message: "'export=' can only be used in a .ts file." },
        type_parameter_declarations_can_only_be_used_in_a_ts_file: { code: 8004, category: ts.DiagnosticCategory.Error, key: "type_parameter_declarations_can_only_be_used_in_a_ts_file_8004", message: "'type parameter declarations' can only be used in a .ts file." },
        implements_clauses_can_only_be_used_in_a_ts_file: { code: 8005, category: ts.DiagnosticCategory.Error, key: "implements_clauses_can_only_be_used_in_a_ts_file_8005", message: "'implements clauses' can only be used in a .ts file." },
        interface_declarations_can_only_be_used_in_a_ts_file: { code: 8006, category: ts.DiagnosticCategory.Error, key: "interface_declarations_can_only_be_used_in_a_ts_file_8006", message: "'interface declarations' can only be used in a .ts file." },
        module_declarations_can_only_be_used_in_a_ts_file: { code: 8007, category: ts.DiagnosticCategory.Error, key: "module_declarations_can_only_be_used_in_a_ts_file_8007", message: "'module declarations' can only be used in a .ts file." },
        type_aliases_can_only_be_used_in_a_ts_file: { code: 8008, category: ts.DiagnosticCategory.Error, key: "type_aliases_can_only_be_used_in_a_ts_file_8008", message: "'type aliases' can only be used in a .ts file." },
        _0_can_only_be_used_in_a_ts_file: { code: 8009, category: ts.DiagnosticCategory.Error, key: "_0_can_only_be_used_in_a_ts_file_8009", message: "'{0}' can only be used in a .ts file." },
        types_can_only_be_used_in_a_ts_file: { code: 8010, category: ts.DiagnosticCategory.Error, key: "types_can_only_be_used_in_a_ts_file_8010", message: "'types' can only be used in a .ts file." },
        type_arguments_can_only_be_used_in_a_ts_file: { code: 8011, category: ts.DiagnosticCategory.Error, key: "type_arguments_can_only_be_used_in_a_ts_file_8011", message: "'type arguments' can only be used in a .ts file." },
        parameter_modifiers_can_only_be_used_in_a_ts_file: { code: 8012, category: ts.DiagnosticCategory.Error, key: "parameter_modifiers_can_only_be_used_in_a_ts_file_8012", message: "'parameter modifiers' can only be used in a .ts file." },
        property_declarations_can_only_be_used_in_a_ts_file: { code: 8014, category: ts.DiagnosticCategory.Error, key: "property_declarations_can_only_be_used_in_a_ts_file_8014", message: "'property declarations' can only be used in a .ts file." },
        enum_declarations_can_only_be_used_in_a_ts_file: { code: 8015, category: ts.DiagnosticCategory.Error, key: "enum_declarations_can_only_be_used_in_a_ts_file_8015", message: "'enum declarations' can only be used in a .ts file." },
        type_assertion_expressions_can_only_be_used_in_a_ts_file: { code: 8016, category: ts.DiagnosticCategory.Error, key: "type_assertion_expressions_can_only_be_used_in_a_ts_file_8016", message: "'type assertion expressions' can only be used in a .ts file." },
        Only_identifiers_Slashqualified_names_with_optional_type_arguments_are_currently_supported_in_a_class_extends_clauses: { code: 9002, category: ts.DiagnosticCategory.Error, key: "Only_identifiers_Slashqualified_names_with_optional_type_arguments_are_currently_supported_in_a_clas_9002", message: "Only identifiers/qualified-names with optional type arguments are currently supported in a class 'extends' clauses." },
        class_expressions_are_not_currently_supported: { code: 9003, category: ts.DiagnosticCategory.Error, key: "class_expressions_are_not_currently_supported_9003", message: "'class' expressions are not currently supported." },
        JSX_attributes_must_only_be_assigned_a_non_empty_expression: { code: 17000, category: ts.DiagnosticCategory.Error, key: "JSX_attributes_must_only_be_assigned_a_non_empty_expression_17000", message: "JSX attributes must only be assigned a non-empty 'expression'." },
        JSX_elements_cannot_have_multiple_attributes_with_the_same_name: { code: 17001, category: ts.DiagnosticCategory.Error, key: "JSX_elements_cannot_have_multiple_attributes_with_the_same_name_17001", message: "JSX elements cannot have multiple attributes with the same name." },
        Expected_corresponding_JSX_closing_tag_for_0: { code: 17002, category: ts.DiagnosticCategory.Error, key: "Expected_corresponding_JSX_closing_tag_for_0_17002", message: "Expected corresponding JSX closing tag for '{0}'." },
        JSX_attribute_expected: { code: 17003, category: ts.DiagnosticCategory.Error, key: "JSX_attribute_expected_17003", message: "JSX attribute expected." },
        Cannot_use_JSX_unless_the_jsx_flag_is_provided: { code: 17004, category: ts.DiagnosticCategory.Error, key: "Cannot_use_JSX_unless_the_jsx_flag_is_provided_17004", message: "Cannot use JSX unless the '--jsx' flag is provided." },
        A_constructor_cannot_contain_a_super_call_when_its_class_extends_null: { code: 17005, category: ts.DiagnosticCategory.Error, key: "A_constructor_cannot_contain_a_super_call_when_its_class_extends_null_17005", message: "A constructor cannot contain a 'super' call when its class extends 'null'" },
        An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17006, category: ts.DiagnosticCategory.Error, key: "An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_ex_17006", message: "An unary expression with the '{0}' operator is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
        A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses: { code: 17007, category: ts.DiagnosticCategory.Error, key: "A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Con_17007", message: "A type assertion expression is not allowed in the left-hand side of an exponentiation expression. Consider enclosing the expression in parentheses." },
        JSX_element_0_has_no_corresponding_closing_tag: { code: 17008, category: ts.DiagnosticCategory.Error, key: "JSX_element_0_has_no_corresponding_closing_tag_17008", message: "JSX element '{0}' has no corresponding closing tag." },
        super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class: { code: 17009, category: ts.DiagnosticCategory.Error, key: "super_must_be_called_before_accessing_this_in_the_constructor_of_a_derived_class_17009", message: "'super' must be called before accessing 'this' in the constructor of a derived class." },
        Unknown_typing_option_0: { code: 17010, category: ts.DiagnosticCategory.Error, key: "Unknown_typing_option_0_17010", message: "Unknown typing option '{0}'." }
    };
})(ts || (ts = {}));
var ts;
(function (ts) {
    function tokenIsIdentifierOrKeyword(token) {
        return token >= 69;
    }
    ts.tokenIsIdentifierOrKeyword = tokenIsIdentifierOrKeyword;
    var textToToken = {
        "abstract": 115,
        "any": 117,
        "as": 116,
        "boolean": 120,
        "break": 70,
        "case": 71,
        "catch": 72,
        "class": 73,
        "continue": 75,
        "const": 74,
        "constructor": 121,
        "debugger": 76,
        "declare": 122,
        "default": 77,
        "delete": 78,
        "do": 79,
        "else": 80,
        "enum": 81,
        "export": 82,
        "extends": 83,
        "false": 84,
        "finally": 85,
        "for": 86,
        "from": 135,
        "function": 87,
        "get": 123,
        "if": 88,
        "implements": 106,
        "import": 89,
        "in": 90,
        "instanceof": 91,
        "interface": 107,
        "is": 124,
        "let": 108,
        "module": 125,
        "namespace": 126,
        "new": 92,
        "null": 93,
        "number": 129,
        "package": 109,
        "private": 110,
        "protected": 111,
        "public": 112,
        "readonly": 127,
        "require": 128,
        "global": 136,
        "return": 94,
        "set": 130,
        "static": 113,
        "string": 131,
        "super": 95,
        "switch": 96,
        "symbol": 132,
        "this": 97,
        "throw": 98,
        "true": 99,
        "try": 100,
        "type": 133,
        "typeof": 101,
        "undefined": 134,
        "var": 102,
        "void": 103,
        "while": 104,
        "with": 105,
        "yield": 114,
        "async": 118,
        "await": 119,
        "of": 137,
        "{": 15,
        "}": 16,
        "(": 17,
        ")": 18,
        "[": 19,
        "]": 20,
        ".": 21,
        "...": 22,
        ";": 23,
        ",": 24,
        "<": 25,
        ">": 27,
        "<=": 28,
        ">=": 29,
        "==": 30,
        "!=": 31,
        "===": 32,
        "!==": 33,
        "=>": 34,
        "+": 35,
        "-": 36,
        "**": 38,
        "*": 37,
        "/": 39,
        "%": 40,
        "++": 41,
        "--": 42,
        "<<": 43,
        "</": 26,
        ">>": 44,
        ">>>": 45,
        "&": 46,
        "|": 47,
        "^": 48,
        "!": 49,
        "~": 50,
        "&&": 51,
        "||": 52,
        "?": 53,
        ":": 54,
        "=": 56,
        "+=": 57,
        "-=": 58,
        "*=": 59,
        "**=": 60,
        "/=": 61,
        "%=": 62,
        "<<=": 63,
        ">>=": 64,
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11694, 11696, 11702, 11704, 11710, 11712, 11718, 11720, 11726, 11728, 11734, 11736, 11742, 11744, 11775, 11823, 11823, 12293, 12295, 12321, 12335, 12337, 12341, 12344, 12348, 12353, 12438, 12441, 12442, 12445, 12447, 12449, 12538, 12540, 12543, 12549, 12589, 12593, 12686, 12704, 12730, 12784, 12799, 13312, 19893, 19968, 40908, 40960, 42124, 42192, 42237, 42240, 42508, 42512, 42539, 42560, 42607, 42612, 42621, 42623, 42647, 42655, 42737, 42775, 42783, 42786, 42888, 42891, 42894, 42896, 42899, 42912, 42922, 43000, 43047, 43072, 43123, 43136, 43204, 43216, 43225, 43232, 43255, 43259, 43259, 43264, 43309, 43312, 43347, 43360, 43388, 43392, 43456, 43471, 43481, 43520, 43574, 43584, 43597, 43600, 43609, 43616, 43638, 43642, 43643, 43648, 43714, 43739, 43741, 43744, 43759, 43762, 43766, 43777, 43782, 43785, 43790, 43793, 43798, 43808, 43814, 43816, 43822, 43968, 44010, 44012, 44013, 44016, 44025, 44032, 55203, 55216, 55238, 55243, 55291, 63744, 64109, 64112, 64217, 64256, 64262, 64275, 64279, 64285, 64296, 64298, 64310, 64312, 64316, 64318, 64318, 64320, 64321, 64323, 64324, 64326, 64433, 64467, 64829, 64848, 64911, 64914, 64967, 65008, 65019, 65024, 65039, 65056, 65062, 65075, 65076, 65101, 65103, 65136, 65140, 65142, 65276, 65296, 65305, 65313, 65338, 65343, 65343, 65345, 65370, 65382, 65470, 65474, 65479, 65482, 65487, 65490, 65495, 65498, 65500,];
    function lookupInUnicodeMap(code, map) {
        if (code < map[0]) {
            return false;
        }
        var lo = 0;
        var hi = map.length;
        var mid;
        while (lo + 1 < hi) {
            mid = lo + (hi - lo) / 2;
            mid -= mid % 2;
            if (map[mid] <= code && code <= map[mid + 1]) {
                return true;
            }
            if (code < map[mid]) {
                hi = mid;
            }
            else {
                lo = mid + 2;
            }
        }
        return false;
    }
    function isUnicodeIdentifierStart(code, languageVersion) {
        return languageVersion >= 1 ?
            lookupInUnicodeMap(code, unicodeES5IdentifierStart) :
            lookupInUnicodeMap(code, unicodeES3IdentifierStart);
    }
    ts.isUnicodeIdentifierStart = isUnicodeIdentifierStart;
    function isUnicodeIdentifierPart(code, languageVersion) {
        return languageVersion >= 1 ?
            lookupInUnicodeMap(code, unicodeES5IdentifierPart) :
            lookupInUnicodeMap(code, unicodeES3IdentifierPart);
    }
    function makeReverseMap(source) {
        var result = [];
        for (var name_4 in source) {
            if (source.hasOwnProperty(name_4)) {
                result[source[name_4]] = name_4;
            }
        }
        return result;
    }
    var tokenStrings = makeReverseMap(textToToken);
    function tokenToString(t) {
        return tokenStrings[t];
    }
    ts.tokenToString = tokenToString;
    function stringToToken(s) {
        return textToToken[s];
    }
    ts.stringToToken = stringToToken;
    function computeLineStarts(text) {
        var result = new Array();
        var pos = 0;
        var lineStart = 0;
        while (pos < text.length) {
            var ch = text.charCodeAt(pos);
            pos++;
            switch (ch) {
                case 13:
                    if (text.charCodeAt(pos) === 10) {
                        pos++;
                    }
                case 10:
                    result.push(lineStart);
                    lineStart = pos;
                    break;
                default:
                    if (ch > 127 && isLineBreak(ch)) {
                        result.push(lineStart);
                        lineStart = pos;
                    }
                    break;
            }
        }
        result.push(lineStart);
        return result;
    }
    ts.computeLineStarts = computeLineStarts;
    function getPositionOfLineAndCharacter(sourceFile, line, character) {
        return computePositionOfLineAndCharacter(getLineStarts(sourceFile), line, character);
    }
    ts.getPositionOfLineAndCharacter = getPositionOfLineAndCharacter;
    function computePositionOfLineAndCharacter(lineStarts, line, character) {
        ts.Debug.assert(line >= 0 && line < lineStarts.length);
        return lineStarts[line] + character;
    }
    ts.computePositionOfLineAndCharacter = computePositionOfLineAndCharacter;
    function getLineStarts(sourceFile) {
        return sourceFile.lineMap || (sourceFile.lineMap = computeLineStarts(sourceFile.text));
    }
    ts.getLineStarts = getLineStarts;
    function computeLineAndCharacterOfPosition(lineStarts, position) {
        var lineNumber = ts.binarySearch(lineStarts, position);
        if (lineNumber < 0) {
            lineNumber = ~lineNumber - 1;
            ts.Debug.assert(lineNumber !== -1, "position cannot precede the beginning of the file");
        }
        return {
            line: lineNumber,
            character: position - lineStarts[lineNumber]
        };
    }
    ts.computeLineAndCharacterOfPosition = computeLineAndCharacterOfPosition;
    function getLineAndCharacterOfPosition(sourceFile, position) {
        return computeLineAndCharacterOfPosition(getLineStarts(sourceFile), position);
    }
    ts.getLineAndCharacterOfPosition = getLineAndCharacterOfPosition;
    var hasOwnProperty = Object.prototype.hasOwnProperty;
    function isWhiteSpace(ch) {
        return ch === 32 ||
            ch === 9 ||
            ch === 11 ||
            ch === 12 ||
            ch === 160 ||
            ch === 133 ||
            ch === 5760 ||
            ch >= 8192 && ch <= 8203 ||
            ch === 8239 ||
            ch === 8287 ||
            ch === 12288 ||
            ch === 65279;
    }
    ts.isWhiteSpace = isWhiteSpace;
    function isLineBreak(ch) {
        return ch === 10 ||
            ch === 13 ||
            ch === 8232 ||
            ch === 8233;
    }
    ts.isLineBreak = isLineBreak;
    function isDigit(ch) {
        return ch >= 48 && ch <= 57;
    }
    function isOctalDigit(ch) {
        return ch >= 48 && ch <= 55;
    }
    ts.isOctalDigit = isOctalDigit;
    function couldStartTrivia(text, pos) {
        var ch = text.charCodeAt(pos);
        switch (ch) {
            case 13:
            case 10:
            case 9:
            case 11:
            case 12:
            case 32:
            case 47:
            case 60:
            case 61:
            case 62:
                return true;
            case 35:
                return pos === 0;
            default:
                return ch > 127;
        }
    }
    ts.couldStartTrivia = couldStartTrivia;
    function skipTrivia(text, pos, stopAfterLineBreak) {
        if (!(pos >= 0)) {
            return pos;
        }
        while (true) {
            var ch = text.charCodeAt(pos);
            switch (ch) {
                case 13:
                    if (text.charCodeAt(pos + 1) === 10) {
                        pos++;
                    }
                case 10:
                    pos++;
                    if (stopAfterLineBreak) {
                        return pos;
                    }
                    continue;
                case 9:
                case 11:
                case 12:
                case 32:
                    pos++;
                    continue;
                case 47:
                    if (text.charCodeAt(pos + 1) === 47) {
                        pos += 2;
                        while (pos < text.length) {
                            if (isLineBreak(text.charCodeAt(pos))) {
                                break;
                            }
                            pos++;
                        }
                        continue;
                    }
                    if (text.charCodeAt(pos + 1) === 42) {
                        pos += 2;
                        while (pos < text.length) {
                            if (text.charCodeAt(pos) === 42 && text.charCodeAt(pos + 1) === 47) {
                                pos += 2;
                                break;
                            }
                            pos++;
                        }
                        continue;
                    }
                    break;
                case 60:
                case 61:
                case 62:
                    if (isConflictMarkerTrivia(text, pos)) {
                        pos = scanConflictMarkerTrivia(text, pos);
                        continue;
                    }
                    break;
                case 35:
                    if (pos === 0 && isShebangTrivia(text, pos)) {
                        pos = scanShebangTrivia(text, pos);
                        continue;
                    }
                    break;
                default:
                    if (ch > 127 && (isWhiteSpace(ch) || isLineBreak(ch))) {
                        pos++;
                        continue;
                    }
                    break;
            }
            return pos;
        }
    }
    ts.skipTrivia = skipTrivia;
    var mergeConflictMarkerLength = "<<<<<<<".length;
    function isConflictMarkerTrivia(text, pos) {
        ts.Debug.assert(pos >= 0);
        if (pos === 0 || isLineBreak(text.charCodeAt(pos - 1))) {
            var ch = text.charCodeAt(pos);
            if ((pos + mergeConflictMarkerLength) < text.length) {
                for (var i = 0, n = mergeConflictMarkerLength; i < n; i++) {
                    if (text.charCodeAt(pos + i) !== ch) {
                        return false;
                    }
                }
                return ch === 61 ||
                    text.charCodeAt(pos + mergeConflictMarkerLength) === 32;
            }
        }
        return false;
    }
    function scanConflictMarkerTrivia(text, pos, error) {
        if (error) {
            error(ts.Diagnostics.Merge_conflict_marker_encountered, mergeConflictMarkerLength);
        }
        var ch = text.charCodeAt(pos);
        var len = text.length;
        if (ch === 60 || ch === 62) {
            while (pos < len && !isLineBreak(text.charCodeAt(pos))) {
                pos++;
            }
        }
        else {
            ts.Debug.assert(ch === 61);
            while (pos < len) {
                var ch_1 = text.charCodeAt(pos);
                if (ch_1 === 62 && isConflictMarkerTrivia(text, pos)) {
                    break;
                }
                pos++;
            }
        }
        return pos;
    }
    var shebangTriviaRegex = /^#!.*/;
    function isShebangTrivia(text, pos) {
        ts.Debug.assert(pos === 0);
        return shebangTriviaRegex.test(text);
    }
    function scanShebangTrivia(text, pos) {
        var shebang = shebangTriviaRegex.exec(text)[0];
        pos = pos + shebang.length;
        return pos;
    }
    function getCommentRanges(text, pos, trailing) {
        var result;
        var collecting = trailing || pos === 0;
        while (pos < text.length) {
            var ch = text.charCodeAt(pos);
            switch (ch) {
                case 13:
                    if (text.charCodeAt(pos + 1) === 10) {
                        pos++;
                    }
                case 10:
                    pos++;
                    if (trailing) {
                        return result;
                    }
                    collecting = true;
                    if (result && result.length) {
                        ts.lastOrUndefined(result).hasTrailingNewLine = true;
                    }
                    continue;
                case 9:
                case 11:
                case 12:
                case 32:
                    pos++;
                    continue;
                case 47:
                    var nextChar = text.charCodeAt(pos + 1);
                    var hasTrailingNewLine = false;
                    if (nextChar === 47 || nextChar === 42) {
                        var kind = nextChar === 47 ? 2 : 3;
                        var startPos = pos;
                        pos += 2;
                        if (nextChar === 47) {
                            while (pos < text.length) {
                                if (isLineBreak(text.charCodeAt(pos))) {
                                    hasTrailingNewLine = true;
                                    break;
                                }
                                pos++;
                            }
                        }
                        else {
                            while (pos < text.length) {
                                if (text.charCodeAt(pos) === 42 && text.charCodeAt(pos + 1) === 47) {
                                    pos += 2;
                                    break;
                                }
                                pos++;
                            }
                        }
                        if (collecting) {
                            if (!result) {
                                result = [];
                            }
                            result.push({ pos: startPos, end: pos, hasTrailingNewLine: hasTrailingNewLine, kind: kind });
                        }
                        continue;
                    }
                    break;
                default:
                    if (ch > 127 && (isWhiteSpace(ch) || isLineBreak(ch))) {
                        if (result && result.length && isLineBreak(ch)) {
                            ts.lastOrUndefined(result).hasTrailingNewLine = true;
                        }
                        pos++;
                        continue;
                    }
                    break;
            }
            return result;
        }
        return result;
    }
    function getLeadingCommentRanges(text, pos) {
        return getCommentRanges(text, pos, false);
    }
    ts.getLeadingCommentRanges = getLeadingCommentRanges;
    function getTrailingCommentRanges(text, pos) {
        return getCommentRanges(text, pos, true);
    }
    ts.getTrailingCommentRanges = getTrailingCommentRanges;
    function getShebang(text) {
        return shebangTriviaRegex.test(text)
            ? shebangTriviaRegex.exec(text)[0]
            : undefined;
    }
    ts.getShebang = getShebang;
    function isIdentifierStart(ch, languageVersion) {
        return ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 ||
            ch === 36 || ch === 95 ||
            ch > 127 && isUnicodeIdentifierStart(ch, languageVersion);
    }
    ts.isIdentifierStart = isIdentifierStart;
    function isIdentifierPart(ch, languageVersion) {
        return ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 ||
            ch >= 48 && ch <= 57 || ch === 36 || ch === 95 ||
            ch > 127 && isUnicodeIdentifierPart(ch, languageVersion);
    }
    ts.isIdentifierPart = isIdentifierPart;
    function isIdentifier(name, languageVersion) {
        if (!isIdentifierStart(name.charCodeAt(0), languageVersion)) {
            return false;
        }
        for (var i = 1, n = name.length; i < n; i++) {
            if (!isIdentifierPart(name.charCodeAt(i), languageVersion)) {
                return false;
            }
        }
        return true;
    }
    ts.isIdentifier = isIdentifier;
    function createScanner(languageVersion, skipTrivia, languageVariant, text, onError, start, length) {
        if (languageVariant === void 0) { languageVariant = 0; }
        var pos;
        var end;
        var startPos;
        var tokenPos;
        var token;
        var tokenValue;
        var precedingLineBreak;
        var hasExtendedUnicodeEscape;
        var tokenIsUnterminated;
        setText(text, start, length);
        return {
            getStartPos: function () { return startPos; },
            getTextPos: function () { return pos; },
            getToken: function () { return token; },
            getTokenPos: function () { return tokenPos; },
            getTokenText: function () { return text.substring(tokenPos, pos); },
            getTokenValue: function () { return tokenValue; },
            hasExtendedUnicodeEscape: function () { return hasExtendedUnicodeEscape; },
            hasPrecedingLineBreak: function () { return precedingLineBreak; },
            isIdentifier: function () { return token === 69 || token > 105; },
            isReservedWord: function () { return token >= 70 && token <= 105; },
            isUnterminated: function () { return tokenIsUnterminated; },
            reScanGreaterToken: reScanGreaterToken,
            reScanSlashToken: reScanSlashToken,
            reScanTemplateToken: reScanTemplateToken,
            scanJsxIdentifier: scanJsxIdentifier,
            reScanJsxToken: reScanJsxToken,
            scanJsxToken: scanJsxToken,
            scanJSDocToken: scanJSDocToken,
            scan: scan,
            setText: setText,
            setScriptTarget: setScriptTarget,
            setLanguageVariant: setLanguageVariant,
            setOnError: setOnError,
            setTextPos: setTextPos,
            tryScan: tryScan,
            lookAhead: lookAhead,
            scanRange: scanRange
        };
        function error(message, length) {
            if (onError) {
                onError(message, length || 0);
            }
        }
        function scanNumber() {
            var start = pos;
            while (isDigit(text.charCodeAt(pos)))
                pos++;
            if (text.charCodeAt(pos) === 46) {
                pos++;
                while (isDigit(text.charCodeAt(pos)))
                    pos++;
            }
            var end = pos;
            if (text.charCodeAt(pos) === 69 || text.charCodeAt(pos) === 101) {
                pos++;
                if (text.charCodeAt(pos) === 43 || text.charCodeAt(pos) === 45)
                    pos++;
                if (isDigit(text.charCodeAt(pos))) {
                    pos++;
                    while (isDigit(text.charCodeAt(pos)))
                        pos++;
                    end = pos;
                }
                else {
                    error(ts.Diagnostics.Digit_expected);
                }
            }
            return "" + +(text.substring(start, end));
        }
        function scanOctalDigits() {
            var start = pos;
            while (isOctalDigit(text.charCodeAt(pos))) {
                pos++;
            }
            return +(text.substring(start, pos));
        }
        function scanExactNumberOfHexDigits(count) {
            return scanHexDigits(count, false);
        }
        function scanMinimumNumberOfHexDigits(count) {
            return scanHexDigits(count, true);
        }
        function scanHexDigits(minCount, scanAsManyAsPossible) {
            var digits = 0;
            var value = 0;
            while (digits < minCount || scanAsManyAsPossible) {
                var ch = text.charCodeAt(pos);
                if (ch >= 48 && ch <= 57) {
                    value = value * 16 + ch - 48;
                }
                else if (ch >= 65 && ch <= 70) {
                    value = value * 16 + ch - 65 + 10;
                }
                else if (ch >= 97 && ch <= 102) {
                    value = value * 16 + ch - 97 + 10;
                }
                else {
                    break;
                }
                pos++;
                digits++;
            }
            if (digits < minCount) {
                value = -1;
            }
            return value;
        }
        function scanString() {
            var quote = text.charCodeAt(pos);
            pos++;
            var result = "";
            var start = pos;
            while (true) {
                if (pos >= end) {
                    result += text.substring(start, pos);
                    tokenIsUnterminated = true;
                    error(ts.Diagnostics.Unterminated_string_literal);
                    break;
                }
                var ch = text.charCodeAt(pos);
                if (ch === quote) {
                    result += text.substring(start, pos);
                    pos++;
                    break;
                }
                if (ch === 92) {
                    result += text.substring(start, pos);
                    result += scanEscapeSequence();
                    start = pos;
                    continue;
                }
                if (isLineBreak(ch)) {
                    result += text.substring(start, pos);
                    tokenIsUnterminated = true;
                    error(ts.Diagnostics.Unterminated_string_literal);
                    break;
                }
                pos++;
            }
            return result;
        }
        function scanTemplateAndSetTokenValue() {
            var startedWithBacktick = text.charCodeAt(pos) === 96;
            pos++;
            var start = pos;
            var contents = "";
            var resultingToken;
            while (true) {
                if (pos >= end) {
                    contents += text.substring(start, pos);
                    tokenIsUnterminated = true;
                    error(ts.Diagnostics.Unterminated_template_literal);
                    resultingToken = startedWithBacktick ? 11 : 14;
                    break;
                }
                var currChar = text.charCodeAt(pos);
                if (currChar === 96) {
                    contents += text.substring(start, pos);
                    pos++;
                    resultingToken = startedWithBacktick ? 11 : 14;
                    break;
                }
                if (currChar === 36 && pos + 1 < end && text.charCodeAt(pos + 1) === 123) {
                    contents += text.substring(start, pos);
                    pos += 2;
                    resultingToken = startedWithBacktick ? 12 : 13;
                    break;
                }
                if (currChar === 92) {
                    contents += text.substring(start, pos);
                    contents += scanEscapeSequence();
                    start = pos;
                    continue;
                }
                if (currChar === 13) {
                    contents += text.substring(start, pos);
                    pos++;
                    if (pos < end && text.charCodeAt(pos) === 10) {
                        pos++;
                    }
                    contents += "\n";
                    start = pos;
                    continue;
                }
                pos++;
            }
            ts.Debug.assert(resultingToken !== undefined);
            tokenValue = contents;
            return resultingToken;
        }
        function scanEscapeSequence() {
            pos++;
            if (pos >= end) {
                error(ts.Diagnostics.Unexpected_end_of_text);
                return "";
            }
            var ch = text.charCodeAt(pos);
            pos++;
            switch (ch) {
                case 48:
                    return "\0";
                case 98:
                    return "\b";
                case 116:
                    return "\t";
                case 110:
                    return "\n";
                case 118:
                    return "\v";
                case 102:
                    return "\f";
                case 114:
                    return "\r";
                case 39:
                    return "\'";
                case 34:
                    return "\"";
                case 117:
                    if (pos < end && text.charCodeAt(pos) === 123) {
                        hasExtendedUnicodeEscape = true;
                        pos++;
                        return scanExtendedUnicodeEscape();
                    }
                    return scanHexadecimalEscape(4);
                case 120:
                    return scanHexadecimalEscape(2);
                case 13:
                    if (pos < end && text.charCodeAt(pos) === 10) {
                        pos++;
                    }
                case 10:
                case 8232:
                case 8233:
                    return "";
                default:
                    return String.fromCharCode(ch);
            }
        }
        function scanHexadecimalEscape(numDigits) {
            var escapedValue = scanExactNumberOfHexDigits(numDigits);
            if (escapedValue >= 0) {
                return String.fromCharCode(escapedValue);
            }
            else {
                error(ts.Diagnostics.Hexadecimal_digit_expected);
                return "";
            }
        }
        function scanExtendedUnicodeEscape() {
            var escapedValue = scanMinimumNumberOfHexDigits(1);
            var isInvalidExtendedEscape = false;
            if (escapedValue < 0) {
                error(ts.Diagnostics.Hexadecimal_digit_expected);
                isInvalidExtendedEscape = true;
            }
            else if (escapedValue > 0x10FFFF) {
                error(ts.Diagnostics.An_extended_Unicode_escape_value_must_be_between_0x0_and_0x10FFFF_inclusive);
                isInvalidExtendedEscape = true;
            }
            if (pos >= end) {
                error(ts.Diagnostics.Unexpected_end_of_text);
                isInvalidExtendedEscape = true;
            }
            else if (text.charCodeAt(pos) === 125) {
                pos++;
            }
            else {
                error(ts.Diagnostics.Unterminated_Unicode_escape_sequence);
                isInvalidExtendedEscape = true;
            }
            if (isInvalidExtendedEscape) {
                return "";
            }
            return utf16EncodeAsString(escapedValue);
        }
        function utf16EncodeAsString(codePoint) {
            ts.Debug.assert(0x0 <= codePoint && codePoint <= 0x10FFFF);
            if (codePoint <= 65535) {
                return String.fromCharCode(codePoint);
            }
            var codeUnit1 = Math.floor((codePoint - 65536) / 1024) + 0xD800;
            var codeUnit2 = ((codePoint - 65536) % 1024) + 0xDC00;
            return String.fromCharCode(codeUnit1, codeUnit2);
        }
        function peekUnicodeEscape() {
            if (pos + 5 < end && text.charCodeAt(pos + 1) === 117) {
                var start_1 = pos;
                pos += 2;
                var value = scanExactNumberOfHexDigits(4);
                pos = start_1;
                return value;
            }
            return -1;
        }
        function scanIdentifierParts() {
            var result = "";
            var start = pos;
            while (pos < end) {
                var ch = text.charCodeAt(pos);
                if (isIdentifierPart(ch, languageVersion)) {
                    pos++;
                }
                else if (ch === 92) {
                    ch = peekUnicodeEscape();
                    if (!(ch >= 0 && isIdentifierPart(ch, languageVersion))) {
                        break;
                    }
                    result += text.substring(start, pos);
                    result += String.fromCharCode(ch);
                    pos += 6;
                    start = pos;
                }
                else {
                    break;
                }
            }
            result += text.substring(start, pos);
            return result;
        }
        function getIdentifierToken() {
            var len = tokenValue.length;
            if (len >= 2 && len <= 11) {
                var ch = tokenValue.charCodeAt(0);
                if (ch >= 97 && ch <= 122 && hasOwnProperty.call(textToToken, tokenValue)) {
                    return token = textToToken[tokenValue];
                }
            }
            return token = 69;
        }
        function scanBinaryOrOctalDigits(base) {
            ts.Debug.assert(base !== 2 || base !== 8, "Expected either base 2 or base 8");
            var value = 0;
            var numberOfDigits = 0;
            while (true) {
                var ch = text.charCodeAt(pos);
                var valueOfCh = ch - 48;
                if (!isDigit(ch) || valueOfCh >= base) {
                    break;
                }
                value = value * base + valueOfCh;
                pos++;
                numberOfDigits++;
            }
            if (numberOfDigits === 0) {
                return -1;
            }
            return value;
        }
        function scan() {
            startPos = pos;
            hasExtendedUnicodeEscape = false;
            precedingLineBreak = false;
            tokenIsUnterminated = false;
            while (true) {
                tokenPos = pos;
                if (pos >= end) {
                    return token = 1;
                }
                var ch = text.charCodeAt(pos);
                if (ch === 35 && pos === 0 && isShebangTrivia(text, pos)) {
                    pos = scanShebangTrivia(text, pos);
                    if (skipTrivia) {
                        continue;
                    }
                    else {
                        return token = 6;
                    }
                }
                switch (ch) {
                    case 10:
                    case 13:
                        precedingLineBreak = true;
                        if (skipTrivia) {
                            pos++;
                            continue;
                        }
                        else {
                            if (ch === 13 && pos + 1 < end && text.charCodeAt(pos + 1) === 10) {
                                pos += 2;
                            }
                            else {
                                pos++;
                            }
                            return token = 4;
                        }
                    case 9:
                    case 11:
                    case 12:
                    case 32:
                        if (skipTrivia) {
                            pos++;
                            continue;
                        }
                        else {
                            while (pos < end && isWhiteSpace(text.charCodeAt(pos))) {
                                pos++;
                            }
                            return token = 5;
                        }
                    case 33:
                        if (text.charCodeAt(pos + 1) === 61) {
                            if (text.charCodeAt(pos + 2) === 61) {
                                return pos += 3, token = 33;
                            }
                            return pos += 2, token = 31;
                        }
                        pos++;
                        return token = 49;
                    case 34:
                    case 39:
                        tokenValue = scanString();
                        return token = 9;
                    case 96:
                        return token = scanTemplateAndSetTokenValue();
                    case 37:
                        if (text.charCodeAt(pos + 1) === 61) {
                            return pos += 2, token = 62;
                        }
                        pos++;
                        return token = 40;
                    case 38:
                        if (text.charCodeAt(pos + 1) === 38) {
                            return pos += 2, token = 51;
                        }
                        if (text.charCodeAt(pos + 1) === 61) {
                            return pos += 2, token = 66;
                        }
                        pos++;
                        return token = 46;
                    case 40:
                        pos++;
                        return token = 17;
                    case 41:
                        pos++;
                        return token = 18;
                    case 42:
                        if (text.charCodeAt(pos + 1) === 61) {
                            return pos += 2, token = 59;
                        }
                        if (text.charCodeAt(pos + 1) === 42) {
                            if (text.charCodeAt(pos + 2) === 61) {
                                return pos += 3, token = 60;
                            }
                            return pos += 2, token = 38;
                        }
                        pos++;
                        return token = 37;
                    case 43:
                        if (text.charCodeAt(pos + 1) === 43) {
                            return pos += 2, token = 41;
                        }
                        if (text.charCodeAt(pos + 1) === 61) {
                            return pos += 2, token = 57;
                        }
                        pos++;
                        return token = 35;
                    case 44:
                        pos++;
                        return token = 24;
                    case 45:
                        if (text.charCodeAt(pos + 1) === 45) {
                            return pos += 2, token = 42;
                        }
                        if (text.charCodeAt(pos + 1) === 61) {
                            return pos += 2, token = 58;
                        }
                        pos++;
                        return token = 36;
                    case 46:
                        if (isDigit(text.charCodeAt(pos + 1))) {
                            tokenValue = scanNumber();
                            return token = 8;
                        }
                        if (text.charCodeAt(pos + 1) === 46 && text.charCodeAt(pos + 2) === 46) {
                            return pos += 3, token = 22;
                        }
                        pos++;
                        return token = 21;
                    case 47:
                        if (text.charCodeAt(pos + 1) === 47) {
                            pos += 2;
                            while (pos < end) {
                                if (isLineBreak(text.charCodeAt(pos))) {
                                    break;
                                }
                                pos++;
                            }
                            if (skipTrivia) {
                                continue;
                            }
                            else {
                                return token = 2;
                            }
                        }
                        if (text.charCodeAt(pos + 1) === 42) {
                            pos += 2;
                            var commentClosed = false;
                            while (pos < end) {
                                var ch_2 = text.charCodeAt(pos);
                                if (ch_2 === 42 && text.charCodeAt(pos + 1) === 47) {
                                    pos += 2;
                                    commentClosed = true;
                                    break;
                                }
                                if (isLineBreak(ch_2)) {
                                    precedingLineBreak = true;
                                }
                                pos++;
                            }
                            if (!commentClosed) {
                                error(ts.Diagnostics.Asterisk_Slash_expected);
                            }
                            if (skipTrivia) {
                                continue;
                            }
                            else {
                                tokenIsUnterminated = !commentClosed;
                                return token = 3;
                            }
                        }
                        if (text.charCodeAt(pos + 1) === 61) {
                            return pos += 2, token = 61;
                        }
                        pos++;
                        return token = 39;
                    case 48:
                        if (pos + 2 < end && (text.charCodeAt(pos + 1) === 88 || text.charCodeAt(pos + 1) === 120)) {
                            pos += 2;
                            var value = scanMinimumNumberOfHexDigits(1);
                            if (value < 0) {
                                error(ts.Diagnostics.Hexadecimal_digit_expected);
                                value = 0;
                            }
                            tokenValue = "" + value;
                            return token = 8;
                        }
                        else if (pos + 2 < end && (text.charCodeAt(pos + 1) === 66 || text.charCodeAt(pos + 1) === 98)) {
                            pos += 2;
                            var value = scanBinaryOrOctalDigits(2);
                            if (value < 0) {
                                error(ts.Diagnostics.Binary_digit_expected);
                                value = 0;
                            }
                            tokenValue = "" + value;
                            return token = 8;
                        }
                        else if (pos + 2 < end && (text.charCodeAt(pos + 1) === 79 || text.charCodeAt(pos + 1) === 111)) {
                            pos += 2;
                            var value = scanBinaryOrOctalDigits(8);
                            if (value < 0) {
                                error(ts.Diagnostics.Octal_digit_expected);
                                value = 0;
                            }
                            tokenValue = "" + value;
                            return token = 8;
                        }
                        if (pos + 1 < end && isOctalDigit(text.charCodeAt(pos + 1))) {
                            tokenValue = "" + scanOctalDigits();
                            return token = 8;
                        }
                    case 49:
                    case 50:
                    case 51:
                    case 52:
                    case 53:
                    case 54:
                    case 55:
                    case 56:
                    case 57:
                        tokenValue = scanNumber();
                        return token = 8;
                    case 58:
                        pos++;
                        return token = 54;
                    case 59:
                        pos++;
                        return token = 23;
                    case 60:
                        if (isConflictMarkerTrivia(text, pos)) {
                            pos = scanConflictMarkerTrivia(text, pos, error);
                            if (skipTrivia) {
                                continue;
                            }
                            else {
                                return token = 7;
                            }
                        }
                        if (text.charCodeAt(pos + 1) === 60) {
                            if (text.charCodeAt(pos + 2) === 61) {
                                return pos += 3, token = 63;
                            }
                            return pos += 2, token = 43;
                        }
                        if (text.charCodeAt(pos + 1) === 61) {
                            return pos += 2, token = 28;
                        }
                        if (languageVariant === 1 &&
                            text.charCodeAt(pos + 1) === 47 &&
                            text.charCodeAt(pos + 2) !== 42) {
                            return pos += 2, token = 26;
                        }
                        pos++;
                        return token = 25;
                    case 61:
                        if (isConflictMarkerTrivia(text, pos)) {
                            pos = scanConflictMarkerTrivia(text, pos, error);
                            if (skipTrivia) {
                                continue;
                            }
                            else {
                                return token = 7;
                            }
                        }
                        if (text.charCodeAt(pos + 1) === 61) {
                            if (text.charCodeAt(pos + 2) === 61) {
                                return pos += 3, token = 32;
                            }
                            return pos += 2, token = 30;
                        }
                        if (text.charCodeAt(pos + 1) === 62) {
                            return pos += 2, token = 34;
                        }
                        pos++;
                        return token = 56;
                    case 62:
                        if (isConflictMarkerTrivia(text, pos)) {
                            pos = scanConflictMarkerTrivia(text, pos, error);
                            if (skipTrivia) {
                                continue;
                            }
                            else {
                                return token = 7;
                            }
                        }
                        pos++;
                        return token = 27;
                    case 63:
                        pos++;
                        return token = 53;
                    case 91:
                        pos++;
                        return token = 19;
                    case 93:
                        pos++;
                        return token = 20;
                    case 94:
                        if (text.charCodeAt(pos + 1) === 61) {
                            return pos += 2, token = 68;
                        }
                        pos++;
                        return token = 48;
                    case 123:
                        pos++;
                        return token = 15;
                    case 124:
                        if (text.charCodeAt(pos + 1) === 124) {
                            return pos += 2, token = 52;
                        }
                        if (text.charCodeAt(pos + 1) === 61) {
                            return pos += 2, token = 67;
                        }
                        pos++;
                        return token = 47;
                    case 125:
                        pos++;
                        return token = 16;
                    case 126:
                        pos++;
                        return token = 50;
                    case 64:
                        pos++;
                        return token = 55;
                    case 92:
                        var cookedChar = peekUnicodeEscape();
                        if (cookedChar >= 0 && isIdentifierStart(cookedChar, languageVersion)) {
                            pos += 6;
                            tokenValue = String.fromCharCode(cookedChar) + scanIdentifierParts();
                            return token = getIdentifierToken();
                        }
                        error(ts.Diagnostics.Invalid_character);
                        pos++;
                        return token = 0;
                    default:
                        if (isIdentifierStart(ch, languageVersion)) {
                            pos++;
                            while (pos < end && isIdentifierPart(ch = text.charCodeAt(pos), languageVersion))
                                pos++;
                            tokenValue = text.substring(tokenPos, pos);
                            if (ch === 92) {
                                tokenValue += scanIdentifierParts();
                            }
                            return token = getIdentifierToken();
                        }
                        else if (isWhiteSpace(ch)) {
                            pos++;
                            continue;
                        }
                        else if (isLineBreak(ch)) {
                            precedingLineBreak = true;
                            pos++;
                            continue;
                        }
                        error(ts.Diagnostics.Invalid_character);
                        pos++;
                        return token = 0;
                }
            }
        }
        function reScanGreaterToken() {
            if (token === 27) {
                if (text.charCodeAt(pos) === 62) {
                    if (text.charCodeAt(pos + 1) === 62) {
                        if (text.charCodeAt(pos + 2) === 61) {
                            return pos += 3, token = 65;
                        }
                        return pos += 2, token = 45;
                    }
                    if (text.charCodeAt(pos + 1) === 61) {
                        return pos += 2, token = 64;
                    }
                    pos++;
                    return token = 44;
                }
                if (text.charCodeAt(pos) === 61) {
                    pos++;
                    return token = 29;
                }
            }
            return token;
        }
        function reScanSlashToken() {
            if (token === 39 || token === 61) {
                var p = tokenPos + 1;
                var inEscape = false;
                var inCharacterClass = false;
                while (true) {
                    if (p >= end) {
                        tokenIsUnterminated = true;
                        error(ts.Diagnostics.Unterminated_regular_expression_literal);
                        break;
                    }
                    var ch = text.charCodeAt(p);
                    if (isLineBreak(ch)) {
                        tokenIsUnterminated = true;
                        error(ts.Diagnostics.Unterminated_regular_expression_literal);
                        break;
                    }
                    if (inEscape) {
                        inEscape = false;
                    }
                    else if (ch === 47 && !inCharacterClass) {
                        p++;
                        break;
                    }
                    else if (ch === 91) {
                        inCharacterClass = true;
                    }
                    else if (ch === 92) {
                        inEscape = true;
                    }
                    else if (ch === 93) {
                        inCharacterClass = false;
                    }
                    p++;
                }
                while (p < end && isIdentifierPart(text.charCodeAt(p), languageVersion)) {
                    p++;
                }
                pos = p;
                tokenValue = text.substring(tokenPos, pos);
                token = 10;
            }
            return token;
        }
        function reScanTemplateToken() {
            ts.Debug.assert(token === 16, "'reScanTemplateToken' should only be called on a '}'");
            pos = tokenPos;
            return token = scanTemplateAndSetTokenValue();
        }
        function reScanJsxToken() {
            pos = tokenPos = startPos;
            return token = scanJsxToken();
        }
        function scanJsxToken() {
            startPos = tokenPos = pos;
            if (pos >= end) {
                return token = 1;
            }
            var char = text.charCodeAt(pos);
            if (char === 60) {
                if (text.charCodeAt(pos + 1) === 47) {
                    pos += 2;
                    return token = 26;
                }
                pos++;
                return token = 25;
            }
            if (char === 123) {
                pos++;
                return token = 15;
            }
            while (pos < end) {
                pos++;
                char = text.charCodeAt(pos);
                if ((char === 123) || (char === 60)) {
                    break;
                }
            }
            return token = 243;
        }
        function scanJsxIdentifier() {
            if (tokenIsIdentifierOrKeyword(token)) {
                var firstCharPosition = pos;
                while (pos < end) {
                    var ch = text.charCodeAt(pos);
                    if (ch === 45 || ((firstCharPosition === pos) ? isIdentifierStart(ch, languageVersion) : isIdentifierPart(ch, languageVersion))) {
                        pos++;
                    }
                    else {
                        break;
                    }
                }
                tokenValue += text.substr(firstCharPosition, pos - firstCharPosition);
            }
            return token;
        }
        function scanJSDocToken() {
            if (pos >= end) {
                return token = 1;
            }
            startPos = pos;
            var ch = text.charCodeAt(pos);
            while (pos < end) {
                ch = text.charCodeAt(pos);
                if (isWhiteSpace(ch)) {
                    pos++;
                }
                else {
                    break;
                }
            }
            tokenPos = pos;
            switch (ch) {
                case 64:
                    return pos += 1, token = 55;
                case 10:
                case 13:
                    return pos += 1, token = 4;
                case 42:
                    return pos += 1, token = 37;
                case 123:
                    return pos += 1, token = 15;
                case 125:
                    return pos += 1, token = 16;
                case 91:
                    return pos += 1, token = 19;
                case 93:
                    return pos += 1, token = 20;
                case 61:
                    return pos += 1, token = 56;
                case 44:
                    return pos += 1, token = 24;
            }
            if (isIdentifierStart(ch, 2)) {
                pos++;
                while (isIdentifierPart(text.charCodeAt(pos), 2) && pos < end) {
                    pos++;
                }
                return token = 69;
            }
            else {
                return pos += 1, token = 0;
            }
        }
        function speculationHelper(callback, isLookahead) {
            var savePos = pos;
            var saveStartPos = startPos;
            var saveTokenPos = tokenPos;
            var saveToken = token;
            var saveTokenValue = tokenValue;
            var savePrecedingLineBreak = precedingLineBreak;
            var result = callback();
            if (!result || isLookahead) {
                pos = savePos;
                startPos = saveStartPos;
                tokenPos = saveTokenPos;
                token = saveToken;
                tokenValue = saveTokenValue;
                precedingLineBreak = savePrecedingLineBreak;
            }
            return result;
        }
        function scanRange(start, length, callback) {
            var saveEnd = end;
            var savePos = pos;
            var saveStartPos = startPos;
            var saveTokenPos = tokenPos;
            var saveToken = token;
            var savePrecedingLineBreak = precedingLineBreak;
            var saveTokenValue = tokenValue;
            var saveHasExtendedUnicodeEscape = hasExtendedUnicodeEscape;
            var saveTokenIsUnterminated = tokenIsUnterminated;
            setText(text, start, length);
            var result = callback();
            end = saveEnd;
            pos = savePos;
            startPos = saveStartPos;
            tokenPos = saveTokenPos;
            token = saveToken;
            precedingLineBreak = savePrecedingLineBreak;
            tokenValue = saveTokenValue;
            hasExtendedUnicodeEscape = saveHasExtendedUnicodeEscape;
            tokenIsUnterminated = saveTokenIsUnterminated;
            return result;
        }
        function lookAhead(callback) {
            return speculationHelper(callback, true);
        }
        function tryScan(callback) {
            return speculationHelper(callback, false);
        }
        function setText(newText, start, length) {
            text = newText || "";
            end = length === undefined ? text.length : start + length;
            setTextPos(start || 0);
        }
        function setOnError(errorCallback) {
            onError = errorCallback;
        }
        function setScriptTarget(scriptTarget) {
            languageVersion = scriptTarget;
        }
        function setLanguageVariant(variant) {
            languageVariant = variant;
        }
        function setTextPos(textPos) {
            ts.Debug.assert(textPos >= 0);
            pos = textPos;
            startPos = textPos;
            tokenPos = textPos;
            token = 0;
            precedingLineBreak = false;
            tokenValue = undefined;
            hasExtendedUnicodeEscape = false;
            tokenIsUnterminated = false;
        }
    }
    ts.createScanner = createScanner;
})(ts || (ts = {}));
var ts;
(function (ts) {
    function getDeclarationOfKind(symbol, kind) {
        var declarations = symbol.declarations;
        if (declarations) {
            for (var _i = 0, declarations_1 = declarations; _i < declarations_1.length; _i++) {
                var declaration = declarations_1[_i];
                if (declaration.kind === kind) {
                    return declaration;
                }
            }
        }
        return undefined;
    }
    ts.getDeclarationOfKind = getDeclarationOfKind;
    var stringWriters = [];
    function getSingleLineStringWriter() {
        if (stringWriters.length === 0) {
            var str_1 = "";
            var writeText = function (text) { return str_1 += text; };
            return {
                string: function () { return str_1; },
                writeKeyword: writeText,
                writeOperator: writeText,
                writePunctuation: writeText,
                writeSpace: writeText,
                writeStringLiteral: writeText,
                writeParameter: writeText,
                writeSymbol: writeText,
                writeLine: function () { return str_1 += " "; },
                increaseIndent: function () { },
                decreaseIndent: function () { },
                clear: function () { return str_1 = ""; },
                trackSymbol: function () { },
                reportInaccessibleThisError: function () { }
            };
        }
        return stringWriters.pop();
    }
    ts.getSingleLineStringWriter = getSingleLineStringWriter;
    function releaseStringWriter(writer) {
        writer.clear();
        stringWriters.push(writer);
    }
    ts.releaseStringWriter = releaseStringWriter;
    function getFullWidth(node) {
        return node.end - node.pos;
    }
    ts.getFullWidth = getFullWidth;
    function arrayIsEqualTo(array1, array2, equaler) {
        if (!array1 || !array2) {
            return array1 === array2;
        }
        if (array1.length !== array2.length) {
            return false;
        }
        for (var i = 0; i < array1.length; i++) {
            var equals = equaler ? equaler(array1[i], array2[i]) : array1[i] === array2[i];
            if (!equals) {
                return false;
            }
        }
        return true;
    }
    ts.arrayIsEqualTo = arrayIsEqualTo;
    function hasResolvedModule(sourceFile, moduleNameText) {
        return sourceFile.resolvedModules && ts.hasProperty(sourceFile.resolvedModules, moduleNameText);
    }
    ts.hasResolvedModule = hasResolvedModule;
    function getResolvedModule(sourceFile, moduleNameText) {
        return hasResolvedModule(sourceFile, moduleNameText) ? sourceFile.resolvedModules[moduleNameText] : undefined;
    }
    ts.getResolvedModule = getResolvedModule;
    function setResolvedModule(sourceFile, moduleNameText, resolvedModule) {
        if (!sourceFile.resolvedModules) {
            sourceFile.resolvedModules = {};
        }
        sourceFile.resolvedModules[moduleNameText] = resolvedModule;
    }
    ts.setResolvedModule = setResolvedModule;
    function setResolvedTypeReferenceDirective(sourceFile, typeReferenceDirectiveName, resolvedTypeReferenceDirective) {
        if (!sourceFile.resolvedTypeReferenceDirectiveNames) {
            sourceFile.resolvedTypeReferenceDirectiveNames = {};
        }
        sourceFile.resolvedTypeReferenceDirectiveNames[typeReferenceDirectiveName] = resolvedTypeReferenceDirective;
    }
    ts.setResolvedTypeReferenceDirective = setResolvedTypeReferenceDirective;
    function moduleResolutionIsEqualTo(oldResolution, newResolution) {
        return oldResolution.resolvedFileName === newResolution.resolvedFileName && oldResolution.isExternalLibraryImport === newResolution.isExternalLibraryImport;
    }
    ts.moduleResolutionIsEqualTo = moduleResolutionIsEqualTo;
    function typeDirectiveIsEqualTo(oldResolution, newResolution) {
        return oldResolution.resolvedFileName === newResolution.resolvedFileName && oldResolution.primary === newResolution.primary;
    }
    ts.typeDirectiveIsEqualTo = typeDirectiveIsEqualTo;
    function hasChangesInResolutions(names, newResolutions, oldResolutions, comparer) {
        if (names.length !== newResolutions.length) {
            return false;
        }
        for (var i = 0; i < names.length; i++) {
            var newResolution = newResolutions[i];
            var oldResolution = oldResolutions && ts.hasProperty(oldResolutions, names[i]) ? oldResolutions[names[i]] : undefined;
            var changed = oldResolution
                ? !newResolution || !comparer(oldResolution, newResolution)
                : newResolution;
            if (changed) {
                return true;
            }
        }
        return false;
    }
    ts.hasChangesInResolutions = hasChangesInResolutions;
    function containsParseError(node) {
        aggregateChildData(node);
        return (node.flags & 268435456) !== 0;
    }
    ts.containsParseError = containsParseError;
    function aggregateChildData(node) {
        if (!(node.flags & 536870912)) {
            var thisNodeOrAnySubNodesHasError = ((node.flags & 67108864) !== 0) ||
                ts.forEachChild(node, containsParseError);
            if (thisNodeOrAnySubNodesHasError) {
                node.flags |= 268435456;
            }
            node.flags |= 536870912;
        }
    }
    function getSourceFileOfNode(node) {
        while (node && node.kind !== 255) {
            node = node.parent;
        }
        return node;
    }
    ts.getSourceFileOfNode = getSourceFileOfNode;
    function isStatementWithLocals(node) {
        switch (node.kind) {
            case 198:
            case 226:
            case 205:
            case 206:
            case 207:
                return true;
        }
        return false;
    }
    ts.isStatementWithLocals = isStatementWithLocals;
    function getStartPositionOfLine(line, sourceFile) {
        ts.Debug.assert(line >= 0);
        return ts.getLineStarts(sourceFile)[line];
    }
    ts.getStartPositionOfLine = getStartPositionOfLine;
    function nodePosToString(node) {
        var file = getSourceFileOfNode(node);
        var loc = ts.getLineAndCharacterOfPosition(file, node.pos);
        return file.fileName + "(" + (loc.line + 1) + "," + (loc.character + 1) + ")";
    }
    ts.nodePosToString = nodePosToString;
    function getStartPosOfNode(node) {
        return node.pos;
    }
    ts.getStartPosOfNode = getStartPosOfNode;
    function getEndLinePosition(line, sourceFile) {
        ts.Debug.assert(line >= 0);
        var lineStarts = ts.getLineStarts(sourceFile);
        var lineIndex = line;
        var sourceText = sourceFile.text;
        if (lineIndex + 1 === lineStarts.length) {
            return sourceText.length - 1;
        }
        else {
            var start = lineStarts[lineIndex];
            var pos = lineStarts[lineIndex + 1] - 1;
            ts.Debug.assert(ts.isLineBreak(sourceText.charCodeAt(pos)));
            while (start <= pos && ts.isLineBreak(sourceText.charCodeAt(pos))) {
                pos--;
            }
            return pos;
        }
    }
    ts.getEndLinePosition = getEndLinePosition;
    function nodeIsMissing(node) {
        if (!node) {
            return true;
        }
        return node.pos === node.end && node.pos >= 0 && node.kind !== 1;
    }
    ts.nodeIsMissing = nodeIsMissing;
    function nodeIsPresent(node) {
        return !nodeIsMissing(node);
    }
    ts.nodeIsPresent = nodeIsPresent;
    function getTokenPosOfNode(node, sourceFile) {
        if (nodeIsMissing(node)) {
            return node.pos;
        }
        return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.pos);
    }
    ts.getTokenPosOfNode = getTokenPosOfNode;
    function getNonDecoratorTokenPosOfNode(node, sourceFile) {
        if (nodeIsMissing(node) || !node.decorators) {
            return getTokenPosOfNode(node, sourceFile);
        }
        return ts.skipTrivia((sourceFile || getSourceFileOfNode(node)).text, node.decorators.end);
    }
    ts.getNonDecoratorTokenPosOfNode = getNonDecoratorTokenPosOfNode;
    function getSourceTextOfNodeFromSourceFile(sourceFile, node, includeTrivia) {
        if (includeTrivia === void 0) { includeTrivia = false; }
        if (nodeIsMissing(node)) {
            return "";
        }
        var text = sourceFile.text;
        return text.substring(includeTrivia ? node.pos : ts.skipTrivia(text, node.pos), node.end);
    }
    ts.getSourceTextOfNodeFromSourceFile = getSourceTextOfNodeFromSourceFile;
    function getTextOfNodeFromSourceText(sourceText, node) {
        if (nodeIsMissing(node)) {
            return "";
        }
        return sourceText.substring(ts.skipTrivia(sourceText, node.pos), node.end);
    }
    ts.getTextOfNodeFromSourceText = getTextOfNodeFromSourceText;
    function getTextOfNode(node, includeTrivia) {
        if (includeTrivia === void 0) { includeTrivia = false; }
        return getSourceTextOfNodeFromSourceFile(getSourceFileOfNode(node), node, includeTrivia);
    }
    ts.getTextOfNode = getTextOfNode;
    function escapeIdentifier(identifier) {
        return identifier.length >= 2 && identifier.charCodeAt(0) === 95 && identifier.charCodeAt(1) === 95 ? "_" + identifier : identifier;
    }
    ts.escapeIdentifier = escapeIdentifier;
    function unescapeIdentifier(identifier) {
        return identifier.length >= 3 && identifier.charCodeAt(0) === 95 && identifier.charCodeAt(1) === 95 && identifier.charCodeAt(2) === 95 ? identifier.substr(1) : identifier;
    }
    ts.unescapeIdentifier = unescapeIdentifier;
    function makeIdentifierFromModuleName(moduleName) {
        return ts.getBaseFileName(moduleName).replace(/^(\d)/, "_$1").replace(/\W/g, "_");
    }
    ts.makeIdentifierFromModuleName = makeIdentifierFromModuleName;
    function isBlockOrCatchScoped(declaration) {
        return (getCombinedNodeFlags(declaration) & 3072) !== 0 ||
            isCatchClauseVariableDeclaration(declaration);
    }
    ts.isBlockOrCatchScoped = isBlockOrCatchScoped;
    function isAmbientModule(node) {
        return node && node.kind === 224 &&
            (node.name.kind === 9 || isGlobalScopeAugmentation(node));
    }
    ts.isAmbientModule = isAmbientModule;
    function isBlockScopedContainerTopLevel(node) {
        return node.kind === 255 ||
            node.kind === 224 ||
            isFunctionLike(node) ||
            isFunctionBlock(node);
    }
    ts.isBlockScopedContainerTopLevel = isBlockScopedContainerTopLevel;
    function isGlobalScopeAugmentation(module) {
        return !!(module.flags & 131072);
    }
    ts.isGlobalScopeAugmentation = isGlobalScopeAugmentation;
    function isExternalModuleAugmentation(node) {
        if (!node || !isAmbientModule(node)) {
            return false;
        }
        switch (node.parent.kind) {
            case 255:
                return ts.isExternalModule(node.parent);
            case 225:
                return isAmbientModule(node.parent.parent) && !ts.isExternalModule(node.parent.parent.parent);
        }
        return false;
    }
    ts.isExternalModuleAugmentation = isExternalModuleAugmentation;
    function getEnclosingBlockScopeContainer(node) {
        var current = node.parent;
        while (current) {
            if (isFunctionLike(current)) {
                return current;
            }
            switch (current.kind) {
                case 255:
                case 226:
                case 251:
                case 224:
                case 205:
                case 206:
                case 207:
                    return current;
                case 198:
                    if (!isFunctionLike(current.parent)) {
                        return current;
                    }
            }
            current = current.parent;
        }
    }
    ts.getEnclosingBlockScopeContainer = getEnclosingBlockScopeContainer;
    function isCatchClauseVariableDeclaration(declaration) {
        return declaration &&
            declaration.kind === 217 &&
            declaration.parent &&
            declaration.parent.kind === 251;
    }
    ts.isCatchClauseVariableDeclaration = isCatchClauseVariableDeclaration;
    function declarationNameToString(name) {
        return getFullWidth(name) === 0 ? "(Missing)" : getTextOfNode(name);
    }
    ts.declarationNameToString = declarationNameToString;
    function createDiagnosticForNode(node, message, arg0, arg1, arg2) {
        var sourceFile = getSourceFileOfNode(node);
        var span = getErrorSpanForNode(sourceFile, node);
        return ts.createFileDiagnostic(sourceFile, span.start, span.length, message, arg0, arg1, arg2);
    }
    ts.createDiagnosticForNode = createDiagnosticForNode;
    function createDiagnosticForNodeFromMessageChain(node, messageChain) {
        var sourceFile = getSourceFileOfNode(node);
        var span = getErrorSpanForNode(sourceFile, node);
        return {
            file: sourceFile,
            start: span.start,
            length: span.length,
            code: messageChain.code,
            category: messageChain.category,
            messageText: messageChain.next ? messageChain : messageChain.messageText
        };
    }
    ts.createDiagnosticForNodeFromMessageChain = createDiagnosticForNodeFromMessageChain;
    function getSpanOfTokenAtPosition(sourceFile, pos) {
        var scanner = ts.createScanner(sourceFile.languageVersion, true, sourceFile.languageVariant, sourceFile.text, undefined, pos);
        scanner.scan();
        var start = scanner.getTokenPos();
        return ts.createTextSpanFromBounds(start, scanner.getTextPos());
    }
    ts.getSpanOfTokenAtPosition = getSpanOfTokenAtPosition;
    function getErrorSpanForArrowFunction(sourceFile, node) {
        var pos = ts.skipTrivia(sourceFile.text, node.pos);
        if (node.body && node.body.kind === 198) {
            var startLine = ts.getLineAndCharacterOfPosition(sourceFile, node.body.pos).line;
            var endLine = ts.getLineAndCharacterOfPosition(sourceFile, node.body.end).line;
            if (startLine < endLine) {
                return ts.createTextSpan(pos, getEndLinePosition(startLine, sourceFile) - pos + 1);
            }
        }
        return ts.createTextSpanFromBounds(pos, node.end);
    }
    function getErrorSpanForNode(sourceFile, node) {
        var errorNode = node;
        switch (node.kind) {
            case 255:
                var pos_1 = ts.skipTrivia(sourceFile.text, 0, false);
                if (pos_1 === sourceFile.text.length) {
                    return ts.createTextSpan(0, 0);
                }
                return getSpanOfTokenAtPosition(sourceFile, pos_1);
            case 217:
            case 168:
            case 220:
            case 191:
            case 221:
            case 224:
            case 223:
            case 254:
            case 219:
            case 178:
            case 146:
            case 148:
            case 149:
            case 222:
                errorNode = node.name;
                break;
            case 179:
                return getErrorSpanForArrowFunction(sourceFile, node);
        }
        if (errorNode === undefined) {
            return getSpanOfTokenAtPosition(sourceFile, node.pos);
        }
        var pos = nodeIsMissing(errorNode)
            ? errorNode.pos
            : ts.skipTrivia(sourceFile.text, errorNode.pos);
        return ts.createTextSpanFromBounds(pos, errorNode.end);
    }
    ts.getErrorSpanForNode = getErrorSpanForNode;
    function isExternalOrCommonJsModule(file) {
        return (file.externalModuleIndicator || file.commonJsModuleIndicator) !== undefined;
    }
    ts.isExternalOrCommonJsModule = isExternalOrCommonJsModule;
    function isDeclarationFile(file) {
        return file.isDeclarationFile;
    }
    ts.isDeclarationFile = isDeclarationFile;
    function isConstEnumDeclaration(node) {
        return node.kind === 223 && isConst(node);
    }
    ts.isConstEnumDeclaration = isConstEnumDeclaration;
    function walkUpBindingElementsAndPatterns(node) {
        while (node && (node.kind === 168 || isBindingPattern(node))) {
            node = node.parent;
        }
        return node;
    }
    function getCombinedNodeFlags(node) {
        node = walkUpBindingElementsAndPatterns(node);
        var flags = node.flags;
        if (node.kind === 217) {
            node = node.parent;
        }
        if (node && node.kind === 218) {
            flags |= node.flags;
            node = node.parent;
        }
        if (node && node.kind === 199) {
            flags |= node.flags;
        }
        return flags;
    }
    ts.getCombinedNodeFlags = getCombinedNodeFlags;
    function isConst(node) {
        return !!(getCombinedNodeFlags(node) & 2048);
    }
    ts.isConst = isConst;
    function isLet(node) {
        return !!(getCombinedNodeFlags(node) & 1024);
    }
    ts.isLet = isLet;
    function isSuperCallExpression(n) {
        return n.kind === 173 && n.expression.kind === 95;
    }
    ts.isSuperCallExpression = isSuperCallExpression;
    function isPrologueDirective(node) {
        return node.kind === 201 && node.expression.kind === 9;
    }
    ts.isPrologueDirective = isPrologueDirective;
    function getLeadingCommentRangesOfNode(node, sourceFileOfNode) {
        return ts.getLeadingCommentRanges(sourceFileOfNode.text, node.pos);
    }
    ts.getLeadingCommentRangesOfNode = getLeadingCommentRangesOfNode;
    function getLeadingCommentRangesOfNodeFromText(node, text) {
        return ts.getLeadingCommentRanges(text, node.pos);
    }
    ts.getLeadingCommentRangesOfNodeFromText = getLeadingCommentRangesOfNodeFromText;
    function getJsDocComments(node, sourceFileOfNode) {
        return getJsDocCommentsFromText(node, sourceFileOfNode.text);
    }
    ts.getJsDocComments = getJsDocComments;
    function getJsDocCommentsFromText(node, text) {
        var commentRanges = (node.kind === 141 || node.kind === 140) ?
            ts.concatenate(ts.getTrailingCommentRanges(text, node.pos), ts.getLeadingCommentRanges(text, node.pos)) :
            getLeadingCommentRangesOfNodeFromText(node, text);
        return ts.filter(commentRanges, isJsDocComment);
        function isJsDocComment(comment) {
            return text.charCodeAt(comment.pos + 1) === 42 &&
                text.charCodeAt(comment.pos + 2) === 42 &&
                text.charCodeAt(comment.pos + 3) !== 47;
        }
    }
    ts.getJsDocCommentsFromText = getJsDocCommentsFromText;
    ts.fullTripleSlashReferencePathRegEx = /^(\/\/\/\s*<reference\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
    ts.fullTripleSlashReferenceTypeReferenceDirectiveRegEx = /^(\/\/\/\s*<reference\s+types\s*=\s*)('|")(.+?)\2.*?\/>/;
    ts.fullTripleSlashAMDReferencePathRegEx = /^(\/\/\/\s*<amd-dependency\s+path\s*=\s*)('|")(.+?)\2.*?\/>/;
    function isTypeNode(node) {
        if (153 <= node.kind && node.kind <= 165) {
            return true;
        }
        switch (node.kind) {
            case 117:
            case 129:
            case 131:
            case 120:
            case 132:
            case 134:
                return true;
            case 103:
                return node.parent.kind !== 182;
            case 193:
                return !isExpressionWithTypeArgumentsInClassExtendsClause(node);
            case 69:
                if (node.parent.kind === 138 && node.parent.right === node) {
                    node = node.parent;
                }
                else if (node.parent.kind === 171 && node.parent.name === node) {
                    node = node.parent;
                }
                ts.Debug.assert(node.kind === 69 || node.kind === 138 || node.kind === 171, "'node' was expected to be a qualified name, identifier or property access in 'isTypeNode'.");
            case 138:
            case 171:
            case 97:
                var parent_1 = node.parent;
                if (parent_1.kind === 157) {
                    return false;
                }
                if (153 <= parent_1.kind && parent_1.kind <= 165) {
                    return true;
                }
                switch (parent_1.kind) {
                    case 193:
                        return !isExpressionWithTypeArgumentsInClassExtendsClause(parent_1);
                    case 140:
                        return node === parent_1.constraint;
                    case 144:
                    case 143:
                    case 141:
                    case 217:
                        return node === parent_1.type;
                    case 219:
                    case 178:
                    case 179:
                    case 147:
                    case 146:
                    case 145:
                    case 148:
                    case 149:
                        return node === parent_1.type;
                    case 150:
                    case 151:
                    case 152:
                        return node === parent_1.type;
                    case 176:
                        return node === parent_1.type;
                    case 173:
                    case 174:
                        return parent_1.typeArguments && ts.indexOf(parent_1.typeArguments, node) >= 0;
                    case 175:
                        return false;
                }
        }
        return false;
    }
    ts.isTypeNode = isTypeNode;
    function forEachReturnStatement(body, visitor) {
        return traverse(body);
        function traverse(node) {
            switch (node.kind) {
                case 210:
                    return visitor(node);
                case 226:
                case 198:
                case 202:
                case 203:
                case 204:
                case 205:
                case 206:
                case 207:
                case 211:
                case 212:
                case 248:
                case 249:
                case 213:
                case 215:
                case 251:
                    return ts.forEachChild(node, traverse);
            }
        }
    }
    ts.forEachReturnStatement = forEachReturnStatement;
    function forEachYieldExpression(body, visitor) {
        return traverse(body);
        function traverse(node) {
            switch (node.kind) {
                case 189:
                    visitor(node);
                    var operand = node.expression;
                    if (operand) {
                        traverse(operand);
                    }
                case 223:
                case 221:
                case 224:
                case 222:
                case 220:
                case 191:
                    return;
                default:
                    if (isFunctionLike(node)) {
                        var name_5 = node.name;
                        if (name_5 && name_5.kind === 139) {
                            traverse(name_5.expression);
                            return;
                        }
                    }
                    else if (!isTypeNode(node)) {
                        ts.forEachChild(node, traverse);
                    }
            }
        }
    }
    ts.forEachYieldExpression = forEachYieldExpression;
    function isVariableLike(node) {
        if (node) {
            switch (node.kind) {
                case 168:
                case 254:
                case 141:
                case 252:
                case 144:
                case 143:
                case 253:
                case 217:
                    return true;
            }
        }
        return false;
    }
    ts.isVariableLike = isVariableLike;
    function isAccessor(node) {
        return node && (node.kind === 148 || node.kind === 149);
    }
    ts.isAccessor = isAccessor;
    function isClassLike(node) {
        return node && (node.kind === 220 || node.kind === 191);
    }
    ts.isClassLike = isClassLike;
    function isFunctionLike(node) {
        return node && isFunctionLikeKind(node.kind);
    }
    ts.isFunctionLike = isFunctionLike;
    function isFunctionLikeKind(kind) {
        switch (kind) {
            case 147:
            case 178:
            case 219:
            case 179:
            case 146:
            case 145:
            case 148:
            case 149:
            case 150:
            case 151:
            case 152:
            case 155:
            case 156:
                return true;
        }
    }
    ts.isFunctionLikeKind = isFunctionLikeKind;
    function introducesArgumentsExoticObject(node) {
        switch (node.kind) {
            case 146:
            case 145:
            case 147:
            case 148:
            case 149:
            case 219:
            case 178:
                return true;
        }
        return false;
    }
    ts.introducesArgumentsExoticObject = introducesArgumentsExoticObject;
    function isIterationStatement(node, lookInLabeledStatements) {
        switch (node.kind) {
            case 205:
            case 206:
            case 207:
            case 203:
            case 204:
                return true;
            case 213:
                return lookInLabeledStatements && isIterationStatement(node.statement, lookInLabeledStatements);
        }
        return false;
    }
    ts.isIterationStatement = isIterationStatement;
    function isFunctionBlock(node) {
        return node && node.kind === 198 && isFunctionLike(node.parent);
    }
    ts.isFunctionBlock = isFunctionBlock;
    function isObjectLiteralMethod(node) {
        return node && node.kind === 146 && node.parent.kind === 170;
    }
    ts.isObjectLiteralMethod = isObjectLiteralMethod;
    function isIdentifierTypePredicate(predicate) {
        return predicate && predicate.kind === 1;
    }
    ts.isIdentifierTypePredicate = isIdentifierTypePredicate;
    function isThisTypePredicate(predicate) {
        return predicate && predicate.kind === 0;
    }
    ts.isThisTypePredicate = isThisTypePredicate;
    function getContainingFunction(node) {
        while (true) {
            node = node.parent;
            if (!node || isFunctionLike(node)) {
                return node;
            }
        }
    }
    ts.getContainingFunction = getContainingFunction;
    function getContainingFunctionOrModule(node) {
        while (true) {
            node = node.parent;
            if (isFunctionLike(node) || node.kind === 224 || node.kind === 255) {
                return node;
            }
        }
    }
    ts.getContainingFunctionOrModule = getContainingFunctionOrModule;
    function getContainingClass(node) {
        while (true) {
            node = node.parent;
            if (!node || isClassLike(node)) {
                return node;
            }
        }
    }
    ts.getContainingClass = getContainingClass;
    function getThisContainer(node, includeArrowFunctions) {
        while (true) {
            node = node.parent;
            if (!node) {
                return undefined;
            }
            switch (node.kind) {
                case 139:
                    if (isClassLike(node.parent.parent)) {
                        return node;
                    }
                    node = node.parent;
                    break;
                case 142:
                    if (node.parent.kind === 141 && isClassElement(node.parent.parent)) {
                        node = node.parent.parent;
                    }
                    else if (isClassElement(node.parent)) {
                        node = node.parent;
                    }
                    break;
                case 179:
                    if (!includeArrowFunctions) {
                        continue;
                    }
                case 219:
                case 178:
                case 224:
                case 144:
                case 143:
                case 146:
                case 145:
                case 147:
                case 148:
                case 149:
                case 150:
                case 151:
                case 152:
                case 223:
                case 255:
                    return node;
            }
        }
    }
    ts.getThisContainer = getThisContainer;
    function getSuperContainer(node, stopOnFunctions) {
        while (true) {
            node = node.parent;
            if (!node) {
                return node;
            }
            switch (node.kind) {
                case 139:
                    node = node.parent;
                    break;
                case 219:
                case 178:
                case 179:
                    if (!stopOnFunctions) {
                        continue;
                    }
                case 144:
                case 143:
                case 146:
                case 145:
                case 147:
                case 148:
                case 149:
                    return node;
                case 142:
                    if (node.parent.kind === 141 && isClassElement(node.parent.parent)) {
                        node = node.parent.parent;
                    }
                    else if (isClassElement(node.parent)) {
                        node = node.parent;
                    }
                    break;
            }
        }
    }
    ts.getSuperContainer = getSuperContainer;
    function isSuperPropertyOrElementAccess(node) {
        return (node.kind === 171
            || node.kind === 172)
            && node.expression.kind === 95;
    }
    ts.isSuperPropertyOrElementAccess = isSuperPropertyOrElementAccess;
    function getEntityNameFromTypeNode(node) {
        if (node) {
            switch (node.kind) {
                case 154:
                    return node.typeName;
                case 193:
                    return node.expression;
                case 69:
                case 138:
                    return node;
            }
        }
        return undefined;
    }
    ts.getEntityNameFromTypeNode = getEntityNameFromTypeNode;
    function getInvokedExpression(node) {
        if (node.kind === 175) {
            return node.tag;
        }
        return node.expression;
    }
    ts.getInvokedExpression = getInvokedExpression;
    function nodeCanBeDecorated(node) {
        switch (node.kind) {
            case 220:
                return true;
            case 144:
                return node.parent.kind === 220;
            case 148:
            case 149:
            case 146:
                return node.body !== undefined
                    && node.parent.kind === 220;
            case 141:
                return node.parent.body !== undefined
                    && (node.parent.kind === 147
                        || node.parent.kind === 146
                        || node.parent.kind === 149)
                    && node.parent.parent.kind === 220;
        }
        return false;
    }
    ts.nodeCanBeDecorated = nodeCanBeDecorated;
    function nodeIsDecorated(node) {
        return node.decorators !== undefined
            && nodeCanBeDecorated(node);
    }
    ts.nodeIsDecorated = nodeIsDecorated;
    function isPropertyAccessExpression(node) {
        return node.kind === 171;
    }
    ts.isPropertyAccessExpression = isPropertyAccessExpression;
    function isElementAccessExpression(node) {
        return node.kind === 172;
    }
    ts.isElementAccessExpression = isElementAccessExpression;
    function isJSXTagName(node) {
        var parent = node.parent;
        if (parent.kind === 242 ||
            parent.kind === 241 ||
            parent.kind === 244) {
            return parent.tagName === node;
        }
        return false;
    }
    ts.isJSXTagName = isJSXTagName;
    function isExpression(node) {
        switch (node.kind) {
            case 95:
            case 93:
            case 99:
            case 84:
            case 10:
            case 169:
            case 170:
            case 171:
            case 172:
            case 173:
            case 174:
            case 175:
            case 194:
            case 176:
            case 195:
            case 177:
            case 178:
            case 191:
            case 179:
            case 182:
            case 180:
            case 181:
            case 184:
            case 185:
            case 186:
            case 187:
            case 190:
            case 188:
            case 11:
            case 192:
            case 240:
            case 241:
            case 189:
            case 183:
                return true;
            case 138:
                while (node.parent.kind === 138) {
                    node = node.parent;
                }
                return node.parent.kind === 157 || isJSXTagName(node);
            case 69:
                if (node.parent.kind === 157 || isJSXTagName(node)) {
                    return true;
                }
            case 8:
            case 9:
            case 97:
                var parent_2 = node.parent;
                switch (parent_2.kind) {
                    case 217:
                    case 141:
                    case 144:
                    case 143:
                    case 254:
                    case 252:
                    case 168:
                        return parent_2.initializer === node;
                    case 201:
                    case 202:
                    case 203:
                    case 204:
                    case 210:
                    case 211:
                    case 212:
                    case 248:
                    case 214:
                    case 212:
                        return parent_2.expression === node;
                    case 205:
                        var forStatement = parent_2;
                        return (forStatement.initializer === node && forStatement.initializer.kind !== 218) ||
                            forStatement.condition === node ||
                            forStatement.incrementor === node;
                    case 206:
                    case 207:
                        var forInStatement = parent_2;
                        return (forInStatement.initializer === node && forInStatement.initializer.kind !== 218) ||
                            forInStatement.expression === node;
                    case 176:
                    case 194:
                        return node === parent_2.expression;
                    case 196:
                        return node === parent_2.expression;
                    case 139:
                        return node === parent_2.expression;
                    case 142:
                    case 247:
                    case 246:
                        return true;
                    case 193:
                        return parent_2.expression === node && isExpressionWithTypeArgumentsInClassExtendsClause(parent_2);
                    default:
                        if (isExpression(parent_2)) {
                            return true;
                        }
                }
        }
        return false;
    }
    ts.isExpression = isExpression;
    function isExternalModuleNameRelative(moduleName) {
        return moduleName.substr(0, 2) === "./" || moduleName.substr(0, 3) === "../" || moduleName.substr(0, 2) === ".\\" || moduleName.substr(0, 3) === "..\\";
    }
    ts.isExternalModuleNameRelative = isExternalModuleNameRelative;
    function isInstantiatedModule(node, preserveConstEnums) {
        var moduleState = ts.getModuleInstanceState(node);
        return moduleState === 1 ||
            (preserveConstEnums && moduleState === 2);
    }
    ts.isInstantiatedModule = isInstantiatedModule;
    function isExternalModuleImportEqualsDeclaration(node) {
        return node.kind === 228 && node.moduleReference.kind === 239;
    }
    ts.isExternalModuleImportEqualsDeclaration = isExternalModuleImportEqualsDeclaration;
    function getExternalModuleImportEqualsDeclarationExpression(node) {
        ts.Debug.assert(isExternalModuleImportEqualsDeclaration(node));
        return node.moduleReference.expression;
    }
    ts.getExternalModuleImportEqualsDeclarationExpression = getExternalModuleImportEqualsDeclarationExpression;
    function isInternalModuleImportEqualsDeclaration(node) {
        return node.kind === 228 && node.moduleReference.kind !== 239;
    }
    ts.isInternalModuleImportEqualsDeclaration = isInternalModuleImportEqualsDeclaration;
    function isSourceFileJavaScript(file) {
        return isInJavaScriptFile(file);
    }
    ts.isSourceFileJavaScript = isSourceFileJavaScript;
    function isInJavaScriptFile(node) {
        return node && !!(node.flags & 134217728);
    }
    ts.isInJavaScriptFile = isInJavaScriptFile;
    function isRequireCall(expression, checkArgumentIsStringLiteral) {
        var isRequire = expression.kind === 173 &&
            expression.expression.kind === 69 &&
            expression.expression.text === "require" &&
            expression.arguments.length === 1;
        return isRequire && (!checkArgumentIsStringLiteral || expression.arguments[0].kind === 9);
    }
    ts.isRequireCall = isRequireCall;
    function isSingleOrDoubleQuote(charCode) {
        return charCode === 39 || charCode === 34;
    }
    ts.isSingleOrDoubleQuote = isSingleOrDoubleQuote;
    function getSpecialPropertyAssignmentKind(expression) {
        if (!isInJavaScriptFile(expression)) {
            return 0;
        }
        if (expression.kind !== 186) {
            return 0;
        }
        var expr = expression;
        if (expr.operatorToken.kind !== 56 || expr.left.kind !== 171) {
            return 0;
        }
        var lhs = expr.left;
        if (lhs.expression.kind === 69) {
            var lhsId = lhs.expression;
            if (lhsId.text === "exports") {
                return 1;
            }
            else if (lhsId.text === "module" && lhs.name.text === "exports") {
                return 2;
            }
        }
        else if (lhs.expression.kind === 97) {
            return 4;
        }
        else if (lhs.expression.kind === 171) {
            var innerPropertyAccess = lhs.expression;
            if (innerPropertyAccess.expression.kind === 69 && innerPropertyAccess.name.text === "prototype") {
                return 3;
            }
        }
        return 0;
    }
    ts.getSpecialPropertyAssignmentKind = getSpecialPropertyAssignmentKind;
    function getExternalModuleName(node) {
        if (node.kind === 229) {
            return node.moduleSpecifier;
        }
        if (node.kind === 228) {
            var reference = node.moduleReference;
            if (reference.kind === 239) {
                return reference.expression;
            }
        }
        if (node.kind === 235) {
            return node.moduleSpecifier;
        }
        if (node.kind === 224 && node.name.kind === 9) {
            return node.name;
        }
    }
    ts.getExternalModuleName = getExternalModuleName;
    function hasQuestionToken(node) {
        if (node) {
            switch (node.kind) {
                case 141:
                case 146:
                case 145:
                case 253:
                case 252:
                case 144:
                case 143:
                    return node.questionToken !== undefined;
            }
        }
        return false;
    }
    ts.hasQuestionToken = hasQuestionToken;
    function isJSDocConstructSignature(node) {
        return node.kind === 268 &&
            node.parameters.length > 0 &&
            node.parameters[0].type.kind === 270;
    }
    ts.isJSDocConstructSignature = isJSDocConstructSignature;
    function getJSDocTag(node, kind, checkParentVariableStatement) {
        if (!node) {
            return undefined;
        }
        var jsDocComment = getJSDocComment(node, checkParentVariableStatement);
        if (!jsDocComment) {
            return undefined;
        }
        for (var _i = 0, _a = jsDocComment.tags; _i < _a.length; _i++) {
            var tag = _a[_i];
            if (tag.kind === kind) {
                return tag;
            }
        }
    }
    function getJSDocComment(node, checkParentVariableStatement) {
        if (node.jsDocComment) {
            return node.jsDocComment;
        }
        if (checkParentVariableStatement) {
            var isInitializerOfVariableDeclarationInStatement = node.parent.kind === 217 &&
                node.parent.initializer === node &&
                node.parent.parent.parent.kind === 199;
            var variableStatementNode = isInitializerOfVariableDeclarationInStatement ? node.parent.parent.parent : undefined;
            if (variableStatementNode) {
                return variableStatementNode.jsDocComment;
            }
            var parent_3 = node.parent;
            var isSourceOfAssignmentExpressionStatement = parent_3 && parent_3.parent &&
                parent_3.kind === 186 &&
                parent_3.operatorToken.kind === 56 &&
                parent_3.parent.kind === 201;
            if (isSourceOfAssignmentExpressionStatement) {
                return parent_3.parent.jsDocComment;
            }
            var isPropertyAssignmentExpression = parent_3 && parent_3.kind === 252;
            if (isPropertyAssignmentExpression) {
                return parent_3.jsDocComment;
            }
        }
        return undefined;
    }
    function getJSDocTypeTag(node) {
        return getJSDocTag(node, 276, false);
    }
    ts.getJSDocTypeTag = getJSDocTypeTag;
    function getJSDocReturnTag(node) {
        return getJSDocTag(node, 275, true);
    }
    ts.getJSDocReturnTag = getJSDocReturnTag;
    function getJSDocTemplateTag(node) {
        return getJSDocTag(node, 277, false);
    }
    ts.getJSDocTemplateTag = getJSDocTemplateTag;
    function getCorrespondingJSDocParameterTag(parameter) {
        if (parameter.name && parameter.name.kind === 69) {
            var parameterName = parameter.name.text;
            var jsDocComment = getJSDocComment(parameter.parent, true);
            if (jsDocComment) {
                for (var _i = 0, _a = jsDocComment.tags; _i < _a.length; _i++) {
                    var tag = _a[_i];
                    if (tag.kind === 274) {
                        var parameterTag = tag;
                        var name_6 = parameterTag.preParameterName || parameterTag.postParameterName;
                        if (name_6.text === parameterName) {
                            return parameterTag;
                        }
                    }
                }
            }
        }
        return undefined;
    }
    ts.getCorrespondingJSDocParameterTag = getCorrespondingJSDocParameterTag;
    function hasRestParameter(s) {
        return isRestParameter(ts.lastOrUndefined(s.parameters));
    }
    ts.hasRestParameter = hasRestParameter;
    function hasDeclaredRestParameter(s) {
        return isDeclaredRestParam(ts.lastOrUndefined(s.parameters));
    }
    ts.hasDeclaredRestParameter = hasDeclaredRestParameter;
    function isRestParameter(node) {
        if (node && (node.flags & 134217728)) {
            if (node.type && node.type.kind === 269) {
                return true;
            }
            var paramTag = getCorrespondingJSDocParameterTag(node);
            if (paramTag && paramTag.typeExpression) {
                return paramTag.typeExpression.type.kind === 269;
            }
        }
        return isDeclaredRestParam(node);
    }
    ts.isRestParameter = isRestParameter;
    function isDeclaredRestParam(node) {
        return node && node.dotDotDotToken !== undefined;
    }
    ts.isDeclaredRestParam = isDeclaredRestParam;
    function isLiteralKind(kind) {
        return 8 <= kind && kind <= 11;
    }
    ts.isLiteralKind = isLiteralKind;
    function isTextualLiteralKind(kind) {
        return kind === 9 || kind === 11;
    }
    ts.isTextualLiteralKind = isTextualLiteralKind;
    function isTemplateLiteralKind(kind) {
        return 11 <= kind && kind <= 14;
    }
    ts.isTemplateLiteralKind = isTemplateLiteralKind;
    function isBindingPattern(node) {
        return !!node && (node.kind === 167 || node.kind === 166);
    }
    ts.isBindingPattern = isBindingPattern;
    function isAssignmentTarget(node) {
        while (node.parent.kind === 177) {
            node = node.parent;
        }
        while (true) {
            var parent_4 = node.parent;
            if (parent_4.kind === 169 || parent_4.kind === 190) {
                node = parent_4;
                continue;
            }
            if (parent_4.kind === 252 || parent_4.kind === 253) {
                node = parent_4.parent;
                continue;
            }
            return parent_4.kind === 186 &&
                parent_4.operatorToken.kind === 56 &&
                parent_4.left === node ||
                (parent_4.kind === 206 || parent_4.kind === 207) &&
                    parent_4.initializer === node;
        }
    }
    ts.isAssignmentTarget = isAssignmentTarget;
    function isNodeDescendentOf(node, ancestor) {
        while (node) {
            if (node === ancestor)
                return true;
            node = node.parent;
        }
        return false;
    }
    ts.isNodeDescendentOf = isNodeDescendentOf;
    function isInAmbientContext(node) {
        while (node) {
            if (node.flags & 2 || (node.kind === 255 && node.isDeclarationFile)) {
                return true;
            }
            node = node.parent;
        }
        return false;
    }
    ts.isInAmbientContext = isInAmbientContext;
    function isDeclaration(node) {
        switch (node.kind) {
            case 179:
            case 168:
            case 220:
            case 191:
            case 147:
            case 223:
            case 254:
            case 237:
            case 219:
            case 178:
            case 148:
            case 230:
            case 228:
            case 233:
            case 221:
            case 146:
            case 145:
            case 224:
            case 231:
            case 141:
            case 252:
            case 144:
            case 143:
            case 149:
            case 253:
            case 222:
            case 140:
            case 217:
                return true;
        }
        return false;
    }
    ts.isDeclaration = isDeclaration;
    function isStatement(n) {
        switch (n.kind) {
            case 209:
            case 208:
            case 216:
            case 203:
            case 201:
            case 200:
            case 206:
            case 207:
            case 205:
            case 202:
            case 213:
            case 210:
            case 212:
            case 214:
            case 215:
            case 199:
            case 204:
            case 211:
            case 234:
                return true;
            default:
                return false;
        }
    }
    ts.isStatement = isStatement;
    function isClassElement(n) {
        switch (n.kind) {
            case 147:
            case 144:
            case 146:
            case 148:
            case 149:
            case 145:
            case 152:
                return true;
            default:
                return false;
        }
    }
    ts.isClassElement = isClassElement;
    function isDeclarationName(name) {
        if (name.kind !== 69 && name.kind !== 9 && name.kind !== 8) {
            return false;
        }
        var parent = name.parent;
        if (parent.kind === 233 || parent.kind === 237) {
            if (parent.propertyName) {
                return true;
            }
        }
        if (isDeclaration(parent)) {
            return parent.name === name;
        }
        return false;
    }
    ts.isDeclarationName = isDeclarationName;
    function isIdentifierName(node) {
        var parent = node.parent;
        switch (parent.kind) {
            case 144:
            case 143:
            case 146:
            case 145:
            case 148:
            case 149:
            case 254:
            case 252:
            case 171:
                return parent.name === node;
            case 138:
                if (parent.right === node) {
                    while (parent.kind === 138) {
                        parent = parent.parent;
                    }
                    return parent.kind === 157;
                }
                return false;
            case 168:
            case 233:
                return parent.propertyName === node;
            case 237:
                return true;
        }
        return false;
    }
    ts.isIdentifierName = isIdentifierName;
    function isAliasSymbolDeclaration(node) {
        return node.kind === 228 ||
            node.kind === 227 ||
            node.kind === 230 && !!node.name ||
            node.kind === 231 ||
            node.kind === 233 ||
            node.kind === 237 ||
            node.kind === 234 && node.expression.kind === 69;
    }
    ts.isAliasSymbolDeclaration = isAliasSymbolDeclaration;
    function getClassExtendsHeritageClauseElement(node) {
        var heritageClause = getHeritageClause(node.heritageClauses, 83);
        return heritageClause && heritageClause.types.length > 0 ? heritageClause.types[0] : undefined;
    }
    ts.getClassExtendsHeritageClauseElement = getClassExtendsHeritageClauseElement;
    function getClassImplementsHeritageClauseElements(node) {
        var heritageClause = getHeritageClause(node.heritageClauses, 106);
        return heritageClause ? heritageClause.types : undefined;
    }
    ts.getClassImplementsHeritageClauseElements = getClassImplementsHeritageClauseElements;
    function getInterfaceBaseTypeNodes(node) {
        var heritageClause = getHeritageClause(node.heritageClauses, 83);
        return heritageClause ? heritageClause.types : undefined;
    }
    ts.getInterfaceBaseTypeNodes = getInterfaceBaseTypeNodes;
    function getHeritageClause(clauses, kind) {
        if (clauses) {
            for (var _i = 0, clauses_1 = clauses; _i < clauses_1.length; _i++) {
                var clause = clauses_1[_i];
                if (clause.token === kind) {
                    return clause;
                }
            }
        }
        return undefined;
    }
    ts.getHeritageClause = getHeritageClause;
    function tryResolveScriptReference(host, sourceFile, reference) {
        if (!host.getCompilerOptions().noResolve) {
            var referenceFileName = ts.isRootedDiskPath(reference.fileName) ? reference.fileName : ts.combinePaths(ts.getDirectoryPath(sourceFile.fileName), reference.fileName);
            return host.getSourceFile(referenceFileName);
        }
    }
    ts.tryResolveScriptReference = tryResolveScriptReference;
    function getAncestor(node, kind) {
        while (node) {
            if (node.kind === kind) {
                return node;
            }
            node = node.parent;
        }
        return undefined;
    }
    ts.getAncestor = getAncestor;
    function getFileReferenceFromReferencePath(comment, commentRange) {
        var simpleReferenceRegEx = /^\/\/\/\s*<reference\s+/gim;
        var isNoDefaultLibRegEx = /^(\/\/\/\s*<reference\s+no-default-lib\s*=\s*)('|")(.+?)\2\s*\/>/gim;
        if (simpleReferenceRegEx.test(comment)) {
            if (isNoDefaultLibRegEx.test(comment)) {
                return {
                    isNoDefaultLib: true
                };
            }
            else {
                var refMatchResult = ts.fullTripleSlashReferencePathRegEx.exec(comment);
                var refLibResult = !refMatchResult && ts.fullTripleSlashReferenceTypeReferenceDirectiveRegEx.exec(comment);
                if (refMatchResult || refLibResult) {
                    var start = commentRange.pos;
                    var end = commentRange.end;
                    return {
                        fileReference: {
                            pos: start,
                            end: end,
                            fileName: (refMatchResult || refLibResult)[3]
                        },
                        isNoDefaultLib: false,
                        isTypeReferenceDirective: !!refLibResult
                    };
                }
                return {
                    diagnosticMessage: ts.Diagnostics.Invalid_reference_directive_syntax,
                    isNoDefaultLib: false
                };
            }
        }
        return undefined;
    }
    ts.getFileReferenceFromReferencePath = getFileReferenceFromReferencePath;
    function isKeyword(token) {
        return 70 <= token && token <= 137;
    }
    ts.isKeyword = isKeyword;
    function isTrivia(token) {
        return 2 <= token && token <= 7;
    }
    ts.isTrivia = isTrivia;
    function isAsyncFunctionLike(node) {
        return isFunctionLike(node) && (node.flags & 256) !== 0 && !isAccessor(node);
    }
    ts.isAsyncFunctionLike = isAsyncFunctionLike;
    function isStringOrNumericLiteral(kind) {
        return kind === 9 || kind === 8;
    }
    ts.isStringOrNumericLiteral = isStringOrNumericLiteral;
    function hasDynamicName(declaration) {
        return declaration.name && isDynamicName(declaration.name);
    }
    ts.hasDynamicName = hasDynamicName;
    function isDynamicName(name) {
        return name.kind === 139 &&
            !isStringOrNumericLiteral(name.expression.kind) &&
            !isWellKnownSymbolSyntactically(name.expression);
    }
    ts.isDynamicName = isDynamicName;
    function isWellKnownSymbolSyntactically(node) {
        return isPropertyAccessExpression(node) && isESSymbolIdentifier(node.expression);
    }
    ts.isWellKnownSymbolSyntactically = isWellKnownSymbolSyntactically;
    function getPropertyNameForPropertyNameNode(name) {
        if (name.kind === 69 || name.kind === 9 || name.kind === 8) {
            return name.text;
        }
        if (name.kind === 139) {
            var nameExpression = name.expression;
            if (isWellKnownSymbolSyntactically(nameExpression)) {
                var rightHandSideName = nameExpression.name.text;
                return getPropertyNameForKnownSymbolName(rightHandSideName);
            }
        }
        return undefined;
    }
    ts.getPropertyNameForPropertyNameNode = getPropertyNameForPropertyNameNode;
    function getPropertyNameForKnownSymbolName(symbolName) {
        return "__@" + symbolName;
    }
    ts.getPropertyNameForKnownSymbolName = getPropertyNameForKnownSymbolName;
    function isESSymbolIdentifier(node) {
        return node.kind === 69 && node.text === "Symbol";
    }
    ts.isESSymbolIdentifier = isESSymbolIdentifier;
    function isModifierKind(token) {
        switch (token) {
            case 115:
            case 118:
            case 74:
            case 122:
            case 77:
            case 82:
            case 112:
            case 110:
            case 111:
            case 127:
            case 113:
                return true;
        }
        return false;
    }
    ts.isModifierKind = isModifierKind;
    function isParameterDeclaration(node) {
        var root = getRootDeclaration(node);
        return root.kind === 141;
    }
    ts.isParameterDeclaration = isParameterDeclaration;
    function getRootDeclaration(node) {
        while (node.kind === 168) {
            node = node.parent.parent;
        }
        return node;
    }
    ts.getRootDeclaration = getRootDeclaration;
    function nodeStartsNewLexicalEnvironment(n) {
        return isFunctionLike(n) || n.kind === 224 || n.kind === 255;
    }
    ts.nodeStartsNewLexicalEnvironment = nodeStartsNewLexicalEnvironment;
    function cloneNode(node, location, flags, parent) {
        var clone = location !== undefined
            ? ts.createNode(node.kind, location.pos, location.end)
            : createSynthesizedNode(node.kind);
        for (var key in node) {
            if (clone.hasOwnProperty(key) || !node.hasOwnProperty(key)) {
                continue;
            }
            clone[key] = node[key];
        }
        if (flags !== undefined) {
            clone.flags = flags;
        }
        if (parent !== undefined) {
            clone.parent = parent;
        }
        return clone;
    }
    ts.cloneNode = cloneNode;
    function cloneEntityName(node, parent) {
        var clone = cloneNode(node, node, node.flags, parent);
        if (isQualifiedName(clone)) {
            var left = clone.left, right = clone.right;
            clone.left = cloneEntityName(left, clone);
            clone.right = cloneNode(right, right, right.flags, parent);
        }
        return clone;
    }
    ts.cloneEntityName = cloneEntityName;
    function isQualifiedName(node) {
        return node.kind === 138;
    }
    ts.isQualifiedName = isQualifiedName;
    function nodeIsSynthesized(node) {
        return node.pos === -1;
    }
    ts.nodeIsSynthesized = nodeIsSynthesized;
    function createSynthesizedNode(kind, startsOnNewLine) {
        var node = ts.createNode(kind, -1, -1);
        node.startsOnNewLine = startsOnNewLine;
        return node;
    }
    ts.createSynthesizedNode = createSynthesizedNode;
    function createSynthesizedNodeArray() {
        var array = [];
        array.pos = -1;
        array.end = -1;
        return array;
    }
    ts.createSynthesizedNodeArray = createSynthesizedNodeArray;
    function createDiagnosticCollection() {
        var nonFileDiagnostics = [];
        var fileDiagnostics = {};
        var diagnosticsModified = false;
        var modificationCount = 0;
        return {
            add: add,
            getGlobalDiagnostics: getGlobalDiagnostics,
            getDiagnostics: getDiagnostics,
            getModificationCount: getModificationCount,
            reattachFileDiagnostics: reattachFileDiagnostics
        };
        function getModificationCount() {
            return modificationCount;
        }
        function reattachFileDiagnostics(newFile) {
            if (!ts.hasProperty(fileDiagnostics, newFile.fileName)) {
                return;
            }
            for (var _i = 0, _a = fileDiagnostics[newFile.fileName]; _i < _a.length; _i++) {
                var diagnostic = _a[_i];
                diagnostic.file = newFile;
            }
        }
        function add(diagnostic) {
            var diagnostics;
            if (diagnostic.file) {
                diagnostics = fileDiagnostics[diagnostic.file.fileName];
                if (!diagnostics) {
                    diagnostics = [];
                    fileDiagnostics[diagnostic.file.fileName] = diagnostics;
                }
            }
            else {
                diagnostics = nonFileDiagnostics;
            }
            diagnostics.push(diagnostic);
            diagnosticsModified = true;
            modificationCount++;
        }
        function getGlobalDiagnostics() {
            sortAndDeduplicate();
            return nonFileDiagnostics;
        }
        function getDiagnostics(fileName) {
            sortAndDeduplicate();
            if (fileName) {
                return fileDiagnostics[fileName] || [];
            }
            var allDiagnostics = [];
            function pushDiagnostic(d) {
                allDiagnostics.push(d);
            }
            ts.forEach(nonFileDiagnostics, pushDiagnostic);
            for (var key in fileDiagnostics) {
                if (ts.hasProperty(fileDiagnostics, key)) {
                    ts.forEach(fileDiagnostics[key], pushDiagnostic);
                }
            }
            return ts.sortAndDeduplicateDiagnostics(allDiagnostics);
        }
        function sortAndDeduplicate() {
            if (!diagnosticsModified) {
                return;
            }
            diagnosticsModified = false;
            nonFileDiagnostics = ts.sortAndDeduplicateDiagnostics(nonFileDiagnostics);
            for (var key in fileDiagnostics) {
                if (ts.hasProperty(fileDiagnostics, key)) {
                    fileDiagnostics[key] = ts.sortAndDeduplicateDiagnostics(fileDiagnostics[key]);
                }
            }
        }
    }
    ts.createDiagnosticCollection = createDiagnosticCollection;
    var escapedCharsRegExp = /[\\\"\u0000-\u001f\t\v\f\b\r\n\u2028\u2029\u0085]/g;
    var escapedCharsMap = {
        "\0": "\\0",
        "\t": "\\t",
        "\v": "\\v",
        "\f": "\\f",
        "\b": "\\b",
        "\r": "\\r",
        "\n": "\\n",
        "\\": "\\\\",
        "\"": "\\\"",
        "\u2028": "\\u2028",
        "\u2029": "\\u2029",
        "\u0085": "\\u0085"
    };
    function escapeString(s) {
        s = escapedCharsRegExp.test(s) ? s.replace(escapedCharsRegExp, getReplacement) : s;
        return s;
        function getReplacement(c) {
            return escapedCharsMap[c] || get16BitUnicodeEscapeSequence(c.charCodeAt(0));
        }
    }
    ts.escapeString = escapeString;
    function isIntrinsicJsxName(name) {
        var ch = name.substr(0, 1);
        return ch.toLowerCase() === ch;
    }
    ts.isIntrinsicJsxName = isIntrinsicJsxName;
    function get16BitUnicodeEscapeSequence(charCode) {
        var hexCharCode = charCode.toString(16).toUpperCase();
        var paddedHexCode = ("0000" + hexCharCode).slice(-4);
        return "\\u" + paddedHexCode;
    }
    var nonAsciiCharacters = /[^\u0000-\u007F]/g;
    function escapeNonAsciiCharacters(s) {
        return nonAsciiCharacters.test(s) ?
            s.replace(nonAsciiCharacters, function (c) { return get16BitUnicodeEscapeSequence(c.charCodeAt(0)); }) :
            s;
    }
    ts.escapeNonAsciiCharacters = escapeNonAsciiCharacters;
    var indentStrings = ["", "    "];
    function getIndentString(level) {
        if (indentStrings[level] === undefined) {
            indentStrings[level] = getIndentString(level - 1) + indentStrings[1];
        }
        return indentStrings[level];
    }
    ts.getIndentString = getIndentString;
    function getIndentSize() {
        return indentStrings[1].length;
    }
    ts.getIndentSize = getIndentSize;
    function createTextWriter(newLine) {
        var output;
        var indent;
        var lineStart;
        var lineCount;
        var linePos;
        function write(s) {
            if (s && s.length) {
                if (lineStart) {
                    output += getIndentString(indent);
                    lineStart = false;
                }
                output += s;
            }
        }
        function reset() {
            output = "";
            indent = 0;
            lineStart = true;
            lineCount = 0;
            linePos = 0;
        }
        function rawWrite(s) {
            if (s !== undefined) {
                if (lineStart) {
                    lineStart = false;
                }
                output += s;
            }
        }
        function writeLiteral(s) {
            if (s && s.length) {
                write(s);
                var lineStartsOfS = ts.computeLineStarts(s);
                if (lineStartsOfS.length > 1) {
                    lineCount = lineCount + lineStartsOfS.length - 1;
                    linePos = output.length - s.length + ts.lastOrUndefined(lineStartsOfS);
                }
            }
        }
        function writeLine() {
            if (!lineStart) {
                output += newLine;
                lineCount++;
                linePos = output.length;
                lineStart = true;
            }
        }
        function writeTextOfNode(text, node) {
            write(getTextOfNodeFromSourceText(text, node));
        }
        reset();
        return {
            write: write,
            rawWrite: rawWrite,
            writeTextOfNode: writeTextOfNode,
            writeLiteral: writeLiteral,
            writeLine: writeLine,
            increaseIndent: function () { indent++; },
            decreaseIndent: function () { indent--; },
            getIndent: function () { return indent; },
            getTextPos: function () { return output.length; },
            getLine: function () { return lineCount + 1; },
            getColumn: function () { return lineStart ? indent * getIndentSize() + 1 : output.length - linePos + 1; },
            getText: function () { return output; },
            reset: reset
        };
    }
    ts.createTextWriter = createTextWriter;
    function getExternalModuleNameFromPath(host, fileName) {
        var getCanonicalFileName = function (f) { return host.getCanonicalFileName(f); };
        var dir = ts.toPath(host.getCommonSourceDirectory(), host.getCurrentDirectory(), getCanonicalFileName);
        var filePath = ts.getNormalizedAbsolutePath(fileName, host.getCurrentDirectory());
        var relativePath = ts.getRelativePathToDirectoryOrUrl(dir, filePath, dir, getCanonicalFileName, false);
        return ts.removeFileExtension(relativePath);
    }
    ts.getExternalModuleNameFromPath = getExternalModuleNameFromPath;
    function getOwnEmitOutputFilePath(sourceFile, host, extension) {
        var compilerOptions = host.getCompilerOptions();
        var emitOutputFilePathWithoutExtension;
        if (compilerOptions.outDir) {
            emitOutputFilePathWithoutExtension = ts.removeFileExtension(getSourceFilePathInNewDir(sourceFile, host, compilerOptions.outDir));
        }
        else {
            emitOutputFilePathWithoutExtension = ts.removeFileExtension(sourceFile.fileName);
        }
        return emitOutputFilePathWithoutExtension + extension;
    }
    ts.getOwnEmitOutputFilePath = getOwnEmitOutputFilePath;
    function getDeclarationEmitOutputFilePath(sourceFile, host) {
        var options = host.getCompilerOptions();
        var outputDir = options.declarationDir || options.outDir;
        if (options.declaration) {
            var path = outputDir
                ? getSourceFilePathInNewDir(sourceFile, host, outputDir)
                : sourceFile.fileName;
            return ts.removeFileExtension(path) + ".d.ts";
        }
    }
    ts.getDeclarationEmitOutputFilePath = getDeclarationEmitOutputFilePath;
    function getEmitScriptTarget(compilerOptions) {
        return compilerOptions.target || 0;
    }
    ts.getEmitScriptTarget = getEmitScriptTarget;
    function getEmitModuleKind(compilerOptions) {
        return typeof compilerOptions.module === "number" ?
            compilerOptions.module :
            getEmitScriptTarget(compilerOptions) === 2 ? ts.ModuleKind.ES6 : ts.ModuleKind.CommonJS;
    }
    ts.getEmitModuleKind = getEmitModuleKind;
    function forEachExpectedEmitFile(host, action, targetSourceFile) {
        var options = host.getCompilerOptions();
        if (options.outFile || options.out) {
            onBundledEmit(host);
        }
        else {
            var sourceFiles = targetSourceFile === undefined ? host.getSourceFiles() : [targetSourceFile];
            for (var _i = 0, sourceFiles_1 = sourceFiles; _i < sourceFiles_1.length; _i++) {
                var sourceFile = sourceFiles_1[_i];
                if (!isDeclarationFile(sourceFile)) {
                    onSingleFileEmit(host, sourceFile);
                }
            }
        }
        function onSingleFileEmit(host, sourceFile) {
            var extension = ".js";
            if (options.jsx === 1) {
                if (isSourceFileJavaScript(sourceFile)) {
                    if (ts.fileExtensionIs(sourceFile.fileName, ".jsx")) {
                        extension = ".jsx";
                    }
                }
                else if (sourceFile.languageVariant === 1) {
                    extension = ".jsx";
                }
            }
            var jsFilePath = getOwnEmitOutputFilePath(sourceFile, host, extension);
            var emitFileNames = {
                jsFilePath: jsFilePath,
                sourceMapFilePath: getSourceMapFilePath(jsFilePath, options),
                declarationFilePath: !isSourceFileJavaScript(sourceFile) ? getDeclarationEmitOutputFilePath(sourceFile, host) : undefined
            };
            action(emitFileNames, [sourceFile], false);
        }
        function onBundledEmit(host) {
            var bundledSources = ts.filter(host.getSourceFiles(), function (sourceFile) {
                return !isDeclarationFile(sourceFile)
                    && (!ts.isExternalModule(sourceFile) || !!getEmitModuleKind(options));
            });
            if (bundledSources.length) {
                var jsFilePath = options.outFile || options.out;
                var emitFileNames = {
                    jsFilePath: jsFilePath,
                    sourceMapFilePath: getSourceMapFilePath(jsFilePath, options),
                    declarationFilePath: options.declaration ? ts.removeFileExtension(jsFilePath) + ".d.ts" : undefined
                };
                action(emitFileNames, bundledSources, true);
            }
        }
        function getSourceMapFilePath(jsFilePath, options) {
            return options.sourceMap ? jsFilePath + ".map" : undefined;
        }
    }
    ts.forEachExpectedEmitFile = forEachExpectedEmitFile;
    function getSourceFilePathInNewDir(sourceFile, host, newDirPath) {
        var sourceFilePath = ts.getNormalizedAbsolutePath(sourceFile.fileName, host.getCurrentDirectory());
        sourceFilePath = sourceFilePath.replace(host.getCommonSourceDirectory(), "");
        return ts.combinePaths(newDirPath, sourceFilePath);
    }
    ts.getSourceFilePathInNewDir = getSourceFilePathInNewDir;
    function writeFile(host, diagnostics, fileName, data, writeByteOrderMark, sourceFiles) {
        host.writeFile(fileName, data, writeByteOrderMark, function (hostErrorMessage) {
            diagnostics.add(ts.createCompilerDiagnostic(ts.Diagnostics.Could_not_write_file_0_Colon_1, fileName, hostErrorMessage));
        }, sourceFiles);
    }
    ts.writeFile = writeFile;
    function getLineOfLocalPosition(currentSourceFile, pos) {
        return ts.getLineAndCharacterOfPosition(currentSourceFile, pos).line;
    }
    ts.getLineOfLocalPosition = getLineOfLocalPosition;
    function getLineOfLocalPositionFromLineMap(lineMap, pos) {
        return ts.computeLineAndCharacterOfPosition(lineMap, pos).line;
    }
    ts.getLineOfLocalPositionFromLineMap = getLineOfLocalPositionFromLineMap;
    function getFirstConstructorWithBody(node) {
        return ts.forEach(node.members, function (member) {
            if (member.kind === 147 && nodeIsPresent(member.body)) {
                return member;
            }
        });
    }
    ts.getFirstConstructorWithBody = getFirstConstructorWithBody;
    function getSetAccessorTypeAnnotationNode(accessor) {
        return accessor && accessor.parameters.length > 0 && accessor.parameters[0].type;
    }
    ts.getSetAccessorTypeAnnotationNode = getSetAccessorTypeAnnotationNode;
    function getAllAccessorDeclarations(declarations, accessor) {
        var firstAccessor;
        var secondAccessor;
        var getAccessor;
        var setAccessor;
        if (hasDynamicName(accessor)) {
            firstAccessor = accessor;
            if (accessor.kind === 148) {
                getAccessor = accessor;
            }
            else if (accessor.kind === 149) {
                setAccessor = accessor;
            }
            else {
                ts.Debug.fail("Accessor has wrong kind");
            }
        }
        else {
            ts.forEach(declarations, function (member) {
                if ((member.kind === 148 || member.kind === 149)
                    && (member.flags & 32) === (accessor.flags & 32)) {
                    var memberName = getPropertyNameForPropertyNameNode(member.name);
                    var accessorName = getPropertyNameForPropertyNameNode(accessor.name);
                    if (memberName === accessorName) {
                        if (!firstAccessor) {
                            firstAccessor = member;
                        }
                        else if (!secondAccessor) {
                            secondAccessor = member;
                        }
                        if (member.kind === 148 && !getAccessor) {
                            getAccessor = member;
                        }
                        if (member.kind === 149 && !setAccessor) {
                            setAccessor = member;
                        }
                    }
                }
            });
        }
        return {
            firstAccessor: firstAccessor,
            secondAccessor: secondAccessor,
            getAccessor: getAccessor,
            setAccessor: setAccessor
        };
    }
    ts.getAllAccessorDeclarations = getAllAccessorDeclarations;
    function emitNewLineBeforeLeadingComments(lineMap, writer, node, leadingComments) {
        if (leadingComments && leadingComments.length && node.pos !== leadingComments[0].pos &&
            getLineOfLocalPositionFromLineMap(lineMap, node.pos) !== getLineOfLocalPositionFromLineMap(lineMap, leadingComments[0].pos)) {
            writer.writeLine();
        }
    }
    ts.emitNewLineBeforeLeadingComments = emitNewLineBeforeLeadingComments;
    function emitComments(text, lineMap, writer, comments, trailingSeparator, newLine, writeComment) {
        var emitLeadingSpace = !trailingSeparator;
        ts.forEach(comments, function (comment) {
            if (emitLeadingSpace) {
                writer.write(" ");
                emitLeadingSpace = false;
            }
            writeComment(text, lineMap, writer, comment, newLine);
            if (comment.hasTrailingNewLine) {
                writer.writeLine();
            }
            else if (trailingSeparator) {
                writer.write(" ");
            }
            else {
                emitLeadingSpace = true;
            }
        });
    }
    ts.emitComments = emitComments;
    function emitDetachedComments(text, lineMap, writer, writeComment, node, newLine, removeComments) {
        var leadingComments;
        var currentDetachedCommentInfo;
        if (removeComments) {
            if (node.pos === 0) {
                leadingComments = ts.filter(ts.getLeadingCommentRanges(text, node.pos), isPinnedComment);
            }
        }
        else {
            leadingComments = ts.getLeadingCommentRanges(text, node.pos);
        }
        if (leadingComments) {
            var detachedComments = [];
            var lastComment = void 0;
            for (var _i = 0, leadingComments_1 = leadingComments; _i < leadingComments_1.length; _i++) {
                var comment = leadingComments_1[_i];
                if (lastComment) {
                    var lastCommentLine = getLineOfLocalPositionFromLineMap(lineMap, lastComment.end);
                    var commentLine = getLineOfLocalPositionFromLineMap(lineMap, comment.pos);
                    if (commentLine >= lastCommentLine + 2) {
                        break;
                    }
                }
                detachedComments.push(comment);
                lastComment = comment;
            }
            if (detachedComments.length) {
                var lastCommentLine = getLineOfLocalPositionFromLineMap(lineMap, ts.lastOrUndefined(detachedComments).end);
                var nodeLine = getLineOfLocalPositionFromLineMap(lineMap, ts.skipTrivia(text, node.pos));
                if (nodeLine >= lastCommentLine + 2) {
                    emitNewLineBeforeLeadingComments(lineMap, writer, node, leadingComments);
                    emitComments(text, lineMap, writer, detachedComments, true, newLine, writeComment);
                    currentDetachedCommentInfo = { nodePos: node.pos, detachedCommentEndPos: ts.lastOrUndefined(detachedComments).end };
                }
            }
        }
        return currentDetachedCommentInfo;
        function isPinnedComment(comment) {
            return text.charCodeAt(comment.pos + 1) === 42 &&
                text.charCodeAt(comment.pos + 2) === 33;
        }
    }
    ts.emitDetachedComments = emitDetachedComments;
    function writeCommentRange(text, lineMap, writer, comment, newLine) {
        if (text.charCodeAt(comment.pos + 1) === 42) {
            var firstCommentLineAndCharacter = ts.computeLineAndCharacterOfPosition(lineMap, comment.pos);
            var lineCount = lineMap.length;
            var firstCommentLineIndent = void 0;
            for (var pos = comment.pos, currentLine = firstCommentLineAndCharacter.line; pos < comment.end; currentLine++) {
                var nextLineStart = (currentLine + 1) === lineCount
                    ? text.length + 1
                    : lineMap[currentLine + 1];
                if (pos !== comment.pos) {
                    if (firstCommentLineIndent === undefined) {
                        firstCommentLineIndent = calculateIndent(text, lineMap[firstCommentLineAndCharacter.line], comment.pos);
                    }
                    var currentWriterIndentSpacing = writer.getIndent() * getIndentSize();
                    var spacesToEmit = currentWriterIndentSpacing - firstCommentLineIndent + calculateIndent(text, pos, nextLineStart);
                    if (spacesToEmit > 0) {
                        var numberOfSingleSpacesToEmit = spacesToEmit % getIndentSize();
                        var indentSizeSpaceString = getIndentString((spacesToEmit - numberOfSingleSpacesToEmit) / getIndentSize());
                        writer.rawWrite(indentSizeSpaceString);
                        while (numberOfSingleSpacesToEmit) {
                            writer.rawWrite(" ");
                            numberOfSingleSpacesToEmit--;
                        }
                    }
                    else {
                        writer.rawWrite("");
                    }
                }
                writeTrimmedCurrentLine(text, comment, writer, newLine, pos, nextLineStart);
                pos = nextLineStart;
            }
        }
        else {
            writer.write(text.substring(comment.pos, comment.end));
        }
    }
    ts.writeCommentRange = writeCommentRange;
    function writeTrimmedCurrentLine(text, comment, writer, newLine, pos, nextLineStart) {
        var end = Math.min(comment.end, nextLineStart - 1);
        var currentLineText = text.substring(pos, end).replace(/^\s+|\s+$/g, "");
        if (currentLineText) {
            writer.write(currentLineText);
            if (end !== comment.end) {
                writer.writeLine();
            }
        }
        else {
            writer.writeLiteral(newLine);
        }
    }
    function calculateIndent(text, pos, end) {
        var currentLineIndent = 0;
        for (; pos < end && ts.isWhiteSpace(text.charCodeAt(pos)); pos++) {
            if (text.charCodeAt(pos) === 9) {
                currentLineIndent += getIndentSize() - (currentLineIndent % getIndentSize());
            }
            else {
                currentLineIndent++;
            }
        }
        return currentLineIndent;
    }
    function modifierToFlag(token) {
        switch (token) {
            case 113: return 32;
            case 112: return 4;
            case 111: return 16;
            case 110: return 8;
            case 115: return 128;
            case 82: return 1;
            case 122: return 2;
            case 74: return 2048;
            case 77: return 512;
            case 118: return 256;
            case 127: return 64;
        }
        return 0;
    }
    ts.modifierToFlag = modifierToFlag;
    function isLeftHandSideExpression(expr) {
        if (expr) {
            switch (expr.kind) {
                case 171:
                case 172:
                case 174:
                case 173:
                case 195:
                case 240:
                case 241:
                case 175:
                case 169:
                case 177:
                case 170:
                case 191:
                case 178:
                case 69:
                case 10:
                case 8:
                case 9:
                case 11:
                case 188:
                case 84:
                case 93:
                case 97:
                case 99:
                case 95:
                    return true;
            }
        }
        return false;
    }
    ts.isLeftHandSideExpression = isLeftHandSideExpression;
    function isAssignmentOperator(token) {
        return token >= 56 && token <= 68;
    }
    ts.isAssignmentOperator = isAssignmentOperator;
    function isExpressionWithTypeArgumentsInClassExtendsClause(node) {
        return node.kind === 193 &&
            node.parent.token === 83 &&
            isClassLike(node.parent.parent);
    }
    ts.isExpressionWithTypeArgumentsInClassExtendsClause = isExpressionWithTypeArgumentsInClassExtendsClause;
    function isSupportedExpressionWithTypeArguments(node) {
        return isSupportedExpressionWithTypeArgumentsRest(node.expression);
    }
    ts.isSupportedExpressionWithTypeArguments = isSupportedExpressionWithTypeArguments;
    function isSupportedExpressionWithTypeArgumentsRest(node) {
        if (node.kind === 69) {
            return true;
        }
        else if (isPropertyAccessExpression(node)) {
            return isSupportedExpressionWithTypeArgumentsRest(node.expression);
        }
        else {
            return false;
        }
    }
    function isRightSideOfQualifiedNameOrPropertyAccess(node) {
        return (node.parent.kind === 138 && node.parent.right === node) ||
            (node.parent.kind === 171 && node.parent.name === node);
    }
    ts.isRightSideOfQualifiedNameOrPropertyAccess = isRightSideOfQualifiedNameOrPropertyAccess;
    function isEmptyObjectLiteralOrArrayLiteral(expression) {
        var kind = expression.kind;
        if (kind === 170) {
            return expression.properties.length === 0;
        }
        if (kind === 169) {
            return expression.elements.length === 0;
        }
        return false;
    }
    ts.isEmptyObjectLiteralOrArrayLiteral = isEmptyObjectLiteralOrArrayLiteral;
    function getLocalSymbolForExportDefault(symbol) {
        return symbol && symbol.valueDeclaration && (symbol.valueDeclaration.flags & 512) ? symbol.valueDeclaration.localSymbol : undefined;
    }
    ts.getLocalSymbolForExportDefault = getLocalSymbolForExportDefault;
    function hasJavaScriptFileExtension(fileName) {
        return ts.forEach(ts.supportedJavascriptExtensions, function (extension) { return ts.fileExtensionIs(fileName, extension); });
    }
    ts.hasJavaScriptFileExtension = hasJavaScriptFileExtension;
    function getExpandedCharCodes(input) {
        var output = [];
        var length = input.length;
        for (var i = 0; i < length; i++) {
            var charCode = input.charCodeAt(i);
            if (charCode < 0x80) {
                output.push(charCode);
            }
            else if (charCode < 0x800) {
                output.push((charCode >> 6) | 192);
                output.push((charCode & 63) | 128);
            }
            else if (charCode < 0x10000) {
                output.push((charCode >> 12) | 224);
                output.push(((charCode >> 6) & 63) | 128);
                output.push((charCode & 63) | 128);
            }
            else if (charCode < 0x20000) {
                output.push((charCode >> 18) | 240);
                output.push(((charCode >> 12) & 63) | 128);
                output.push(((charCode >> 6) & 63) | 128);
                output.push((charCode & 63) | 128);
            }
            else {
                ts.Debug.assert(false, "Unexpected code point");
            }
        }
        return output;
    }
    ts.stringify = typeof JSON !== "undefined" && JSON.stringify
        ? JSON.stringify
        : stringifyFallback;
    function stringifyFallback(value) {
        return value === undefined ? undefined : stringifyValue(value);
    }
    function stringifyValue(value) {
        return typeof value === "string" ? "\"" + escapeString(value) + "\""
            : typeof value === "number" ? isFinite(value) ? String(value) : "null"
                : typeof value === "boolean" ? value ? "true" : "false"
                    : typeof value === "object" && value ? ts.isArray(value) ? cycleCheck(stringifyArray, value) : cycleCheck(stringifyObject, value)
                        : "null";
    }
    function cycleCheck(cb, value) {
        ts.Debug.assert(!value.hasOwnProperty("__cycle"), "Converting circular structure to JSON");
        value.__cycle = true;
        var result = cb(value);
        delete value.__cycle;
        return result;
    }
    function stringifyArray(value) {
        return "[" + ts.reduceLeft(value, stringifyElement, "") + "]";
    }
    function stringifyElement(memo, value) {
        return (memo ? memo + "," : memo) + stringifyValue(value);
    }
    function stringifyObject(value) {
        return "{" + ts.reduceProperties(value, stringifyProperty, "") + "}";
    }
    function stringifyProperty(memo, value, key) {
        return value === undefined || typeof value === "function" || key === "__cycle" ? memo
            : (memo ? memo + "," : memo) + ("\"" + escapeString(key) + "\":" + stringifyValue(value));
    }
    var base64Digits = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
    function convertToBase64(input) {
        var result = "";
        var charCodes = getExpandedCharCodes(input);
        var i = 0;
        var length = charCodes.length;
        var byte1, byte2, byte3, byte4;
        while (i < length) {
            byte1 = charCodes[i] >> 2;
            byte2 = (charCodes[i] & 3) << 4 | charCodes[i + 1] >> 4;
            byte3 = (charCodes[i + 1] & 15) << 2 | charCodes[i + 2] >> 6;
            byte4 = charCodes[i + 2] & 63;
            if (i + 1 >= length) {
                byte3 = byte4 = 64;
            }
            else if (i + 2 >= length) {
                byte4 = 64;
            }
            result += base64Digits.charAt(byte1) + base64Digits.charAt(byte2) + base64Digits.charAt(byte3) + base64Digits.charAt(byte4);
            i += 3;
        }
        return result;
    }
    ts.convertToBase64 = convertToBase64;
    function convertToRelativePath(absoluteOrRelativePath, basePath, getCanonicalFileName) {
        return !ts.isRootedDiskPath(absoluteOrRelativePath)
            ? absoluteOrRelativePath
            : ts.getRelativePathToDirectoryOrUrl(basePath, absoluteOrRelativePath, basePath, getCanonicalFileName, false);
    }
    ts.convertToRelativePath = convertToRelativePath;
    var carriageReturnLineFeed = "\r\n";
    var lineFeed = "\n";
    function getNewLineCharacter(options) {
        if (options.newLine === 0) {
            return carriageReturnLineFeed;
        }
        else if (options.newLine === 1) {
            return lineFeed;
        }
        else if (ts.sys) {
            return ts.sys.newLine;
        }
        return carriageReturnLineFeed;
    }
    ts.getNewLineCharacter = getNewLineCharacter;
    function isWatchSet(options) {
        return options.watch && options.hasOwnProperty("watch");
    }
    ts.isWatchSet = isWatchSet;
})(ts || (ts = {}));
var ts;
(function (ts) {
    function getDefaultLibFileName(options) {
        return options.target === 2 ? "lib.es6.d.ts" : "lib.d.ts";
    }
    ts.getDefaultLibFileName = getDefaultLibFileName;
    function textSpanEnd(span) {
        return span.start + span.length;
    }
    ts.textSpanEnd = textSpanEnd;
    function textSpanIsEmpty(span) {
        return span.length === 0;
    }
    ts.textSpanIsEmpty = textSpanIsEmpty;
    function textSpanContainsPosition(span, position) {
        return position >= span.start && position < textSpanEnd(span);
    }
    ts.textSpanContainsPosition = textSpanContainsPosition;
    function textSpanContainsTextSpan(span, other) {
        return other.start >= span.start && textSpanEnd(other) <= textSpanEnd(span);
    }
    ts.textSpanContainsTextSpan = textSpanContainsTextSpan;
    function textSpanOverlapsWith(span, other) {
        var overlapStart = Math.max(span.start, other.start);
        var overlapEnd = Math.min(textSpanEnd(span), textSpanEnd(other));
        return overlapStart < overlapEnd;
    }
    ts.textSpanOverlapsWith = textSpanOverlapsWith;
    function textSpanOverlap(span1, span2) {
        var overlapStart = Math.max(span1.start, span2.start);
        var overlapEnd = Math.min(textSpanEnd(span1), textSpanEnd(span2));
        if (overlapStart < overlapEnd) {
            return createTextSpanFromBounds(overlapStart, overlapEnd);
        }
        return undefined;
    }
    ts.textSpanOverlap = textSpanOverlap;
    function textSpanIntersectsWithTextSpan(span, other) {
        return other.start <= textSpanEnd(span) && textSpanEnd(other) >= span.start;
    }
    ts.textSpanIntersectsWithTextSpan = textSpanIntersectsWithTextSpan;
    function textSpanIntersectsWith(span, start, length) {
        var end = start + length;
        return start <= textSpanEnd(span) && end >= span.start;
    }
    ts.textSpanIntersectsWith = textSpanIntersectsWith;
    function decodedTextSpanIntersectsWith(start1, length1, start2, length2) {
        var end1 = start1 + length1;
        var end2 = start2 + length2;
        return start2 <= end1 && end2 >= start1;
    }
    ts.decodedTextSpanIntersectsWith = decodedTextSpanIntersectsWith;
    function textSpanIntersectsWithPosition(span, position) {
        return position <= textSpanEnd(span) && position >= span.start;
    }
    ts.textSpanIntersectsWithPosition = textSpanIntersectsWithPosition;
    function textSpanIntersection(span1, span2) {
        var intersectStart = Math.max(span1.start, span2.start);
        var intersectEnd = Math.min(textSpanEnd(span1), textSpanEnd(span2));
        if (intersectStart <= intersectEnd) {
            return createTextSpanFromBounds(intersectStart, intersectEnd);
        }
        return undefined;
    }
    ts.textSpanIntersection = textSpanIntersection;
    function createTextSpan(start, length) {
        if (start < 0) {
            throw new Error("start < 0");
        }
        if (length < 0) {
            throw new Error("length < 0");
        }
        return { start: start, length: length };
    }
    ts.createTextSpan = createTextSpan;
    function createTextSpanFromBounds(start, end) {
        return createTextSpan(start, end - start);
    }
    ts.createTextSpanFromBounds = createTextSpanFromBounds;
    function textChangeRangeNewSpan(range) {
        return createTextSpan(range.span.start, range.newLength);
    }
    ts.textChangeRangeNewSpan = textChangeRangeNewSpan;
    function textChangeRangeIsUnchanged(range) {
        return textSpanIsEmpty(range.span) && range.newLength === 0;
    }
    ts.textChangeRangeIsUnchanged = textChangeRangeIsUnchanged;
    function createTextChangeRange(span, newLength) {
        if (newLength < 0) {
            throw new Error("newLength < 0");
        }
        return { span: span, newLength: newLength };
    }
    ts.createTextChangeRange = createTextChangeRange;
    ts.unchangedTextChangeRange = createTextChangeRange(createTextSpan(0, 0), 0);
    function collapseTextChangeRangesAcrossMultipleVersions(changes) {
        if (changes.length === 0) {
            return ts.unchangedTextChangeRange;
        }
        if (changes.length === 1) {
            return changes[0];
        }
        var change0 = changes[0];
        var oldStartN = change0.span.start;
        var oldEndN = textSpanEnd(change0.span);
        var newEndN = oldStartN + change0.newLength;
        for (var i = 1; i < changes.length; i++) {
            var nextChange = changes[i];
            var oldStart1 = oldStartN;
            var oldEnd1 = oldEndN;
            var newEnd1 = newEndN;
            var oldStart2 = nextChange.span.start;
            var oldEnd2 = textSpanEnd(nextChange.span);
            var newEnd2 = oldStart2 + nextChange.newLength;
            oldStartN = Math.min(oldStart1, oldStart2);
            oldEndN = Math.max(oldEnd1, oldEnd1 + (oldEnd2 - newEnd1));
            newEndN = Math.max(newEnd2, newEnd2 + (newEnd1 - oldEnd2));
        }
        return createTextChangeRange(createTextSpanFromBounds(oldStartN, oldEndN), newEndN - oldStartN);
    }
    ts.collapseTextChangeRangesAcrossMultipleVersions = collapseTextChangeRangesAcrossMultipleVersions;
    function getTypeParameterOwner(d) {
        if (d && d.kind === 140) {
            for (var current = d; current; current = current.parent) {
                if (ts.isFunctionLike(current) || ts.isClassLike(current) || current.kind === 221) {
                    return current;
                }
            }
        }
    }
    ts.getTypeParameterOwner = getTypeParameterOwner;
    function isParameterPropertyDeclaration(node) {
        return node.flags & 28 && node.parent.kind === 147 && ts.isClassLike(node.parent.parent);
    }
    ts.isParameterPropertyDeclaration = isParameterPropertyDeclaration;
    function startsWith(str, prefix) {
        return str.lastIndexOf(prefix, 0) === 0;
    }
    ts.startsWith = startsWith;
    function endsWith(str, suffix) {
        var expectedPos = str.length - suffix.length;
        return str.indexOf(suffix, expectedPos) === expectedPos;
    }
    ts.endsWith = endsWith;
})(ts || (ts = {}));
var ts;
(function (ts) {
    ts.parseTime = 0;
    var NodeConstructor;
    var SourceFileConstructor;
    function createNode(kind, pos, end) {
        if (kind === 255) {
            return new (SourceFileConstructor || (SourceFileConstructor = ts.objectAllocator.getSourceFileConstructor()))(kind, pos, end);
        }
        else {
            return new (NodeConstructor || (NodeConstructor = ts.objectAllocator.getNodeConstructor()))(kind, pos, end);
        }
    }
    ts.createNode = createNode;
    function visitNode(cbNode, node) {
        if (node) {
            return cbNode(node);
        }
    }
    function visitNodeArray(cbNodes, nodes) {
        if (nodes) {
            return cbNodes(nodes);
        }
    }
    function visitEachNode(cbNode, nodes) {
        if (nodes) {
            for (var _i = 0, nodes_1 = nodes; _i < nodes_1.length; _i++) {
                var node = nodes_1[_i];
                var result = cbNode(node);
                if (result) {
                    return result;
                }
            }
        }
    }
    function forEachChild(node, cbNode, cbNodeArray) {
        if (!node) {
            return;
        }
        var visitNodes = cbNodeArray ? visitNodeArray : visitEachNode;
        var cbNodes = cbNodeArray || cbNode;
        switch (node.kind) {
            case 138:
                return visitNode(cbNode, node.left) ||
                    visitNode(cbNode, node.right);
            case 140:
                return visitNode(cbNode, node.name) ||
                    visitNode(cbNode, node.constraint) ||
                    visitNode(cbNode, node.expression);
            case 253:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.name) ||
                    visitNode(cbNode, node.questionToken) ||
                    visitNode(cbNode, node.equalsToken) ||
                    visitNode(cbNode, node.objectAssignmentInitializer);
            case 141:
            case 144:
            case 143:
            case 252:
            case 217:
            case 168:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.propertyName) ||
                    visitNode(cbNode, node.dotDotDotToken) ||
                    visitNode(cbNode, node.name) ||
                    visitNode(cbNode, node.questionToken) ||
                    visitNode(cbNode, node.type) ||
                    visitNode(cbNode, node.initializer);
            case 155:
            case 156:
            case 150:
            case 151:
            case 152:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNodes(cbNodes, node.typeParameters) ||
                    visitNodes(cbNodes, node.parameters) ||
                    visitNode(cbNode, node.type);
            case 146:
            case 145:
            case 147:
            case 148:
            case 149:
            case 178:
            case 219:
            case 179:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.asteriskToken) ||
                    visitNode(cbNode, node.name) ||
                    visitNode(cbNode, node.questionToken) ||
                    visitNodes(cbNodes, node.typeParameters) ||
                    visitNodes(cbNodes, node.parameters) ||
                    visitNode(cbNode, node.type) ||
                    visitNode(cbNode, node.equalsGreaterThanToken) ||
                    visitNode(cbNode, node.body);
            case 154:
                return visitNode(cbNode, node.typeName) ||
                    visitNodes(cbNodes, node.typeArguments);
            case 153:
                return visitNode(cbNode, node.parameterName) ||
                    visitNode(cbNode, node.type);
            case 157:
                return visitNode(cbNode, node.exprName);
            case 158:
                return visitNodes(cbNodes, node.members);
            case 159:
                return visitNode(cbNode, node.elementType);
            case 160:
                return visitNodes(cbNodes, node.elementTypes);
            case 161:
            case 162:
                return visitNodes(cbNodes, node.types);
            case 163:
                return visitNode(cbNode, node.type);
            case 166:
            case 167:
                return visitNodes(cbNodes, node.elements);
            case 169:
                return visitNodes(cbNodes, node.elements);
            case 170:
                return visitNodes(cbNodes, node.properties);
            case 171:
                return visitNode(cbNode, node.expression) ||
                    visitNode(cbNode, node.dotToken) ||
                    visitNode(cbNode, node.name);
            case 172:
                return visitNode(cbNode, node.expression) ||
                    visitNode(cbNode, node.argumentExpression);
            case 173:
            case 174:
                return visitNode(cbNode, node.expression) ||
                    visitNodes(cbNodes, node.typeArguments) ||
                    visitNodes(cbNodes, node.arguments);
            case 175:
                return visitNode(cbNode, node.tag) ||
                    visitNode(cbNode, node.template);
            case 176:
                return visitNode(cbNode, node.type) ||
                    visitNode(cbNode, node.expression);
            case 177:
                return visitNode(cbNode, node.expression);
            case 180:
                return visitNode(cbNode, node.expression);
            case 181:
                return visitNode(cbNode, node.expression);
            case 182:
                return visitNode(cbNode, node.expression);
            case 184:
                return visitNode(cbNode, node.operand);
            case 189:
                return visitNode(cbNode, node.asteriskToken) ||
                    visitNode(cbNode, node.expression);
            case 183:
                return visitNode(cbNode, node.expression);
            case 185:
                return visitNode(cbNode, node.operand);
            case 186:
                return visitNode(cbNode, node.left) ||
                    visitNode(cbNode, node.operatorToken) ||
                    visitNode(cbNode, node.right);
            case 194:
                return visitNode(cbNode, node.expression) ||
                    visitNode(cbNode, node.type);
            case 195:
                return visitNode(cbNode, node.expression);
            case 187:
                return visitNode(cbNode, node.condition) ||
                    visitNode(cbNode, node.questionToken) ||
                    visitNode(cbNode, node.whenTrue) ||
                    visitNode(cbNode, node.colonToken) ||
                    visitNode(cbNode, node.whenFalse);
            case 190:
                return visitNode(cbNode, node.expression);
            case 198:
            case 225:
                return visitNodes(cbNodes, node.statements);
            case 255:
                return visitNodes(cbNodes, node.statements) ||
                    visitNode(cbNode, node.endOfFileToken);
            case 199:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.declarationList);
            case 218:
                return visitNodes(cbNodes, node.declarations);
            case 201:
                return visitNode(cbNode, node.expression);
            case 202:
                return visitNode(cbNode, node.expression) ||
                    visitNode(cbNode, node.thenStatement) ||
                    visitNode(cbNode, node.elseStatement);
            case 203:
                return visitNode(cbNode, node.statement) ||
                    visitNode(cbNode, node.expression);
            case 204:
                return visitNode(cbNode, node.expression) ||
                    visitNode(cbNode, node.statement);
            case 205:
                return visitNode(cbNode, node.initializer) ||
                    visitNode(cbNode, node.condition) ||
                    visitNode(cbNode, node.incrementor) ||
                    visitNode(cbNode, node.statement);
            case 206:
                return visitNode(cbNode, node.initializer) ||
                    visitNode(cbNode, node.expression) ||
                    visitNode(cbNode, node.statement);
            case 207:
                return visitNode(cbNode, node.initializer) ||
                    visitNode(cbNode, node.expression) ||
                    visitNode(cbNode, node.statement);
            case 208:
            case 209:
                return visitNode(cbNode, node.label);
            case 210:
                return visitNode(cbNode, node.expression);
            case 211:
                return visitNode(cbNode, node.expression) ||
                    visitNode(cbNode, node.statement);
            case 212:
                return visitNode(cbNode, node.expression) ||
                    visitNode(cbNode, node.caseBlock);
            case 226:
                return visitNodes(cbNodes, node.clauses);
            case 248:
                return visitNode(cbNode, node.expression) ||
                    visitNodes(cbNodes, node.statements);
            case 249:
                return visitNodes(cbNodes, node.statements);
            case 213:
                return visitNode(cbNode, node.label) ||
                    visitNode(cbNode, node.statement);
            case 214:
                return visitNode(cbNode, node.expression);
            case 215:
                return visitNode(cbNode, node.tryBlock) ||
                    visitNode(cbNode, node.catchClause) ||
                    visitNode(cbNode, node.finallyBlock);
            case 251:
                return visitNode(cbNode, node.variableDeclaration) ||
                    visitNode(cbNode, node.block);
            case 142:
                return visitNode(cbNode, node.expression);
            case 220:
            case 191:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.name) ||
                    visitNodes(cbNodes, node.typeParameters) ||
                    visitNodes(cbNodes, node.heritageClauses) ||
                    visitNodes(cbNodes, node.members);
            case 221:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.name) ||
                    visitNodes(cbNodes, node.typeParameters) ||
                    visitNodes(cbNodes, node.heritageClauses) ||
                    visitNodes(cbNodes, node.members);
            case 222:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.name) ||
                    visitNodes(cbNodes, node.typeParameters) ||
                    visitNode(cbNode, node.type);
            case 223:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.name) ||
                    visitNodes(cbNodes, node.members);
            case 254:
                return visitNode(cbNode, node.name) ||
                    visitNode(cbNode, node.initializer);
            case 224:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.name) ||
                    visitNode(cbNode, node.body);
            case 228:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.name) ||
                    visitNode(cbNode, node.moduleReference);
            case 229:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.importClause) ||
                    visitNode(cbNode, node.moduleSpecifier);
            case 230:
                return visitNode(cbNode, node.name) ||
                    visitNode(cbNode, node.namedBindings);
            case 227:
                return visitNode(cbNode, node.name);
            case 231:
                return visitNode(cbNode, node.name);
            case 232:
            case 236:
                return visitNodes(cbNodes, node.elements);
            case 235:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.exportClause) ||
                    visitNode(cbNode, node.moduleSpecifier);
            case 233:
            case 237:
                return visitNode(cbNode, node.propertyName) ||
                    visitNode(cbNode, node.name);
            case 234:
                return visitNodes(cbNodes, node.decorators) ||
                    visitNodes(cbNodes, node.modifiers) ||
                    visitNode(cbNode, node.expression);
            case 188:
                return visitNode(cbNode, node.head) || visitNodes(cbNodes, node.templateSpans);
            case 196:
                return visitNode(cbNode, node.expression) || visitNode(cbNode, node.literal);
            case 139:
                return visitNode(cbNode, node.expression);
            case 250:
                return visitNodes(cbNodes, node.types);
            case 193:
                return visitNode(cbNode, node.expression) ||
                    visitNodes(cbNodes, node.typeArguments);
            case 239:
                return visitNode(cbNode, node.expression);
            case 238:
                return visitNodes(cbNodes, node.decorators);
            case 240:
                return visitNode(cbNode, node.openingElement) ||
                    visitNodes(cbNodes, node.children) ||
                    visitNode(cbNode, node.closingElement);
            case 241:
            case 242:
                return visitNode(cbNode, node.tagName) ||
                    visitNodes(cbNodes, node.attributes);
            case 245:
                return visitNode(cbNode, node.name) ||
                    visitNode(cbNode, node.initializer);
            case 246:
                return visitNode(cbNode, node.expression);
            case 247:
                return visitNode(cbNode, node.expression);
            case 244:
                return visitNode(cbNode, node.tagName);
            case 256:
                return visitNode(cbNode, node.type);
            case 260:
                return visitNodes(cbNodes, node.types);
            case 261:
                return visitNodes(cbNodes, node.types);
            case 259:
                return visitNode(cbNode, node.elementType);
            case 263:
                return visitNode(cbNode, node.type);
            case 262:
                return visitNode(cbNode, node.type);
            case 264:
                return visitNodes(cbNodes, node.members);
            case 266:
                return visitNode(cbNode, node.name) ||
                    visitNodes(cbNodes, node.typeArguments);
            case 267:
                return visitNode(cbNode, node.type);
            case 268:
                return visitNodes(cbNodes, node.parameters) ||
                    visitNode(cbNode, node.type);
            case 269:
                return visitNode(cbNode, node.type);
            case 270:
                return visitNode(cbNode, node.type);
            case 271:
                return visitNode(cbNode, node.type);
            case 265:
                return visitNode(cbNode, node.name) ||
                    visitNode(cbNode, node.type);
            case 272:
                return visitNodes(cbNodes, node.tags);
            case 274:
                return visitNode(cbNode, node.preParameterName) ||
                    visitNode(cbNode, node.typeExpression) ||
                    visitNode(cbNode, node.postParameterName);
            case 275:
                return visitNode(cbNode, node.typeExpression);
            case 276:
                return visitNode(cbNode, node.typeExpression);
            case 277:
                return visitNodes(cbNodes, node.typeParameters);
        }
    }
    ts.forEachChild = forEachChild;
    function createSourceFile(fileName, sourceText, languageVersion, setParentNodes, scriptKind) {
        if (setParentNodes === void 0) { setParentNodes = false; }
        var start = new Date().getTime();
        var result = Parser.parseSourceFile(fileName, sourceText, languageVersion, undefined, setParentNodes, scriptKind);
        ts.parseTime += new Date().getTime() - start;
        return result;
    }
    ts.createSourceFile = createSourceFile;
    function isExternalModule(file) {
        return file.externalModuleIndicator !== undefined;
    }
    ts.isExternalModule = isExternalModule;
    function updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks) {
        return IncrementalParser.updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks);
    }
    ts.updateSourceFile = updateSourceFile;
    function parseIsolatedJSDocComment(content, start, length) {
        return Parser.JSDocParser.parseIsolatedJSDocComment(content, start, length);
    }
    ts.parseIsolatedJSDocComment = parseIsolatedJSDocComment;
    function parseJSDocTypeExpressionForTests(content, start, length) {
        return Parser.JSDocParser.parseJSDocTypeExpressionForTests(content, start, length);
    }
    ts.parseJSDocTypeExpressionForTests = parseJSDocTypeExpressionForTests;
    var Parser;
    (function (Parser) {
        var scanner = ts.createScanner(2, true);
        var disallowInAndDecoratorContext = 4194304 | 16777216;
        var NodeConstructor;
        var SourceFileConstructor;
        var sourceFile;
        var parseDiagnostics;
        var syntaxCursor;
        var token;
        var sourceText;
        var nodeCount;
        var identifiers;
        var identifierCount;
        var parsingContext;
        var contextFlags;
        var parseErrorBeforeNextFinishedNode = false;
        function parseSourceFile(fileName, _sourceText, languageVersion, _syntaxCursor, setParentNodes, scriptKind) {
            scriptKind = ts.ensureScriptKind(fileName, scriptKind);
            initializeState(fileName, _sourceText, languageVersion, _syntaxCursor, scriptKind);
            var result = parseSourceFileWorker(fileName, languageVersion, setParentNodes, scriptKind);
            clearState();
            return result;
        }
        Parser.parseSourceFile = parseSourceFile;
        function getLanguageVariant(scriptKind) {
            return scriptKind === 4 || scriptKind === 2 || scriptKind === 1 ? 1 : 0;
        }
        function initializeState(fileName, _sourceText, languageVersion, _syntaxCursor, scriptKind) {
            NodeConstructor = ts.objectAllocator.getNodeConstructor();
            SourceFileConstructor = ts.objectAllocator.getSourceFileConstructor();
            sourceText = _sourceText;
            syntaxCursor = _syntaxCursor;
            parseDiagnostics = [];
            parsingContext = 0;
            identifiers = {};
            identifierCount = 0;
            nodeCount = 0;
            contextFlags = scriptKind === 1 || scriptKind === 2 ? 134217728 : 0;
            parseErrorBeforeNextFinishedNode = false;
            scanner.setText(sourceText);
            scanner.setOnError(scanError);
            scanner.setScriptTarget(languageVersion);
            scanner.setLanguageVariant(getLanguageVariant(scriptKind));
        }
        function clearState() {
            scanner.setText("");
            scanner.setOnError(undefined);
            parseDiagnostics = undefined;
            sourceFile = undefined;
            identifiers = undefined;
            syntaxCursor = undefined;
            sourceText = undefined;
        }
        function parseSourceFileWorker(fileName, languageVersion, setParentNodes, scriptKind) {
            sourceFile = createSourceFile(fileName, languageVersion, scriptKind);
            sourceFile.flags = contextFlags;
            token = nextToken();
            processReferenceComments(sourceFile);
            sourceFile.statements = parseList(0, parseStatement);
            ts.Debug.assert(token === 1);
            sourceFile.endOfFileToken = parseTokenNode();
            setExternalModuleIndicator(sourceFile);
            sourceFile.nodeCount = nodeCount;
            sourceFile.identifierCount = identifierCount;
            sourceFile.identifiers = identifiers;
            sourceFile.parseDiagnostics = parseDiagnostics;
            if (setParentNodes) {
                fixupParentReferences(sourceFile);
            }
            return sourceFile;
        }
        function addJSDocComment(node) {
            if (contextFlags & 134217728) {
                var comments = ts.getLeadingCommentRangesOfNode(node, sourceFile);
                if (comments) {
                    for (var _i = 0, comments_1 = comments; _i < comments_1.length; _i++) {
                        var comment = comments_1[_i];
                        var jsDocComment = JSDocParser.parseJSDocComment(node, comment.pos, comment.end - comment.pos);
                        if (jsDocComment) {
                            node.jsDocComment = jsDocComment;
                        }
                    }
                }
            }
            return node;
        }
        function fixupParentReferences(sourceFile) {
            var parent = sourceFile;
            forEachChild(sourceFile, visitNode);
            return;
            function visitNode(n) {
                if (n.parent !== parent) {
                    n.parent = parent;
                    var saveParent = parent;
                    parent = n;
                    forEachChild(n, visitNode);
                    parent = saveParent;
                }
            }
        }
        Parser.fixupParentReferences = fixupParentReferences;
        function createSourceFile(fileName, languageVersion, scriptKind) {
            var sourceFile = new SourceFileConstructor(255, 0, sourceText.length);
            nodeCount++;
            sourceFile.text = sourceText;
            sourceFile.bindDiagnostics = [];
            sourceFile.languageVersion = languageVersion;
            sourceFile.fileName = ts.normalizePath(fileName);
            sourceFile.languageVariant = getLanguageVariant(scriptKind);
            sourceFile.isDeclarationFile = ts.fileExtensionIs(sourceFile.fileName, ".d.ts");
            sourceFile.scriptKind = scriptKind;
            return sourceFile;
        }
        function setContextFlag(val, flag) {
            if (val) {
                contextFlags |= flag;
            }
            else {
                contextFlags &= ~flag;
            }
        }
        function setDisallowInContext(val) {
            setContextFlag(val, 4194304);
        }
        function setYieldContext(val) {
            setContextFlag(val, 8388608);
        }
        function setDecoratorContext(val) {
            setContextFlag(val, 16777216);
        }
        function setAwaitContext(val) {
            setContextFlag(val, 33554432);
        }
        function doOutsideOfContext(context, func) {
            var contextFlagsToClear = context & contextFlags;
            if (contextFlagsToClear) {
                setContextFlag(false, contextFlagsToClear);
                var result = func();
                setContextFlag(true, contextFlagsToClear);
                return result;
            }
            return func();
        }
        function doInsideOfContext(context, func) {
            var contextFlagsToSet = context & ~contextFlags;
            if (contextFlagsToSet) {
                setContextFlag(true, contextFlagsToSet);
                var result = func();
                setContextFlag(false, contextFlagsToSet);
                return result;
            }
            return func();
        }
        function allowInAnd(func) {
            return doOutsideOfContext(4194304, func);
        }
        function disallowInAnd(func) {
            return doInsideOfContext(4194304, func);
        }
        function doInYieldContext(func) {
            return doInsideOfContext(8388608, func);
        }
        function doInDecoratorContext(func) {
            return doInsideOfContext(16777216, func);
        }
        function doInAwaitContext(func) {
            return doInsideOfContext(33554432, func);
        }
        function doOutsideOfAwaitContext(func) {
            return doOutsideOfContext(33554432, func);
        }
        function doInYieldAndAwaitContext(func) {
            return doInsideOfContext(8388608 | 33554432, func);
        }
        function inContext(flags) {
            return (contextFlags & flags) !== 0;
        }
        function inYieldContext() {
            return inContext(8388608);
        }
        function inDisallowInContext() {
            return inContext(4194304);
        }
        function inDecoratorContext() {
            return inContext(16777216);
        }
        function inAwaitContext() {
            return inContext(33554432);
        }
        function parseErrorAtCurrentToken(message, arg0) {
            var start = scanner.getTokenPos();
            var length = scanner.getTextPos() - start;
            parseErrorAtPosition(start, length, message, arg0);
        }
        function parseErrorAtPosition(start, length, message, arg0) {
            var lastError = ts.lastOrUndefined(parseDiagnostics);
            if (!lastError || start !== lastError.start) {
                parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, start, length, message, arg0));
            }
            parseErrorBeforeNextFinishedNode = true;
        }
        function scanError(message, length) {
            var pos = scanner.getTextPos();
            parseErrorAtPosition(pos, length || 0, message);
        }
        function getNodePos() {
            return scanner.getStartPos();
        }
        function getNodeEnd() {
            return scanner.getStartPos();
        }
        function nextToken() {
            return token = scanner.scan();
        }
        function reScanGreaterToken() {
            return token = scanner.reScanGreaterToken();
        }
        function reScanSlashToken() {
            return token = scanner.reScanSlashToken();
        }
        function reScanTemplateToken() {
            return token = scanner.reScanTemplateToken();
        }
        function scanJsxIdentifier() {
            return token = scanner.scanJsxIdentifier();
        }
        function scanJsxText() {
            return token = scanner.scanJsxToken();
        }
        function speculationHelper(callback, isLookAhead) {
            var saveToken = token;
            var saveParseDiagnosticsLength = parseDiagnostics.length;
            var saveParseErrorBeforeNextFinishedNode = parseErrorBeforeNextFinishedNode;
            var saveContextFlags = contextFlags;
            var result = isLookAhead
                ? scanner.lookAhead(callback)
                : scanner.tryScan(callback);
            ts.Debug.assert(saveContextFlags === contextFlags);
            if (!result || isLookAhead) {
                token = saveToken;
                parseDiagnostics.length = saveParseDiagnosticsLength;
                parseErrorBeforeNextFinishedNode = saveParseErrorBeforeNextFinishedNode;
            }
            return result;
        }
        function lookAhead(callback) {
            return speculationHelper(callback, true);
        }
        function tryParse(callback) {
            return speculationHelper(callback, false);
        }
        function isIdentifier() {
            if (token === 69) {
                return true;
            }
            if (token === 114 && inYieldContext()) {
                return false;
            }
            if (token === 119 && inAwaitContext()) {
                return false;
            }
            return token > 105;
        }
        function parseExpected(kind, diagnosticMessage, shouldAdvance) {
            if (shouldAdvance === void 0) { shouldAdvance = true; }
            if (token === kind) {
                if (shouldAdvance) {
                    nextToken();
                }
                return true;
            }
            if (diagnosticMessage) {
                parseErrorAtCurrentToken(diagnosticMessage);
            }
            else {
                parseErrorAtCurrentToken(ts.Diagnostics._0_expected, ts.tokenToString(kind));
            }
            return false;
        }
        function parseOptional(t) {
            if (token === t) {
                nextToken();
                return true;
            }
            return false;
        }
        function parseOptionalToken(t) {
            if (token === t) {
                return parseTokenNode();
            }
            return undefined;
        }
        function parseExpectedToken(t, reportAtCurrentPosition, diagnosticMessage, arg0) {
            return parseOptionalToken(t) ||
                createMissingNode(t, reportAtCurrentPosition, diagnosticMessage, arg0);
        }
        function parseTokenNode() {
            var node = createNode(token);
            nextToken();
            return finishNode(node);
        }
        function canParseSemicolon() {
            if (token === 23) {
                return true;
            }
            return token === 16 || token === 1 || scanner.hasPrecedingLineBreak();
        }
        function parseSemicolon() {
            if (canParseSemicolon()) {
                if (token === 23) {
                    nextToken();
                }
                return true;
            }
            else {
                return parseExpected(23);
            }
        }
        function createNode(kind, pos) {
            nodeCount++;
            if (!(pos >= 0)) {
                pos = scanner.getStartPos();
            }
            return new NodeConstructor(kind, pos, pos);
        }
        function finishNode(node, end) {
            node.end = end === undefined ? scanner.getStartPos() : end;
            if (contextFlags) {
                node.flags |= contextFlags;
            }
            if (parseErrorBeforeNextFinishedNode) {
                parseErrorBeforeNextFinishedNode = false;
                node.flags |= 67108864;
            }
            return node;
        }
        function createMissingNode(kind, reportAtCurrentPosition, diagnosticMessage, arg0) {
            if (reportAtCurrentPosition) {
                parseErrorAtPosition(scanner.getStartPos(), 0, diagnosticMessage, arg0);
            }
            else {
                parseErrorAtCurrentToken(diagnosticMessage, arg0);
            }
            var result = createNode(kind, scanner.getStartPos());
            result.text = "";
            return finishNode(result);
        }
        function internIdentifier(text) {
            text = ts.escapeIdentifier(text);
            return ts.hasProperty(identifiers, text) ? identifiers[text] : (identifiers[text] = text);
        }
        function createIdentifier(isIdentifier, diagnosticMessage) {
            identifierCount++;
            if (isIdentifier) {
                var node = createNode(69);
                if (token !== 69) {
                    node.originalKeywordKind = token;
                }
                node.text = internIdentifier(scanner.getTokenValue());
                nextToken();
                return finishNode(node);
            }
            return createMissingNode(69, false, diagnosticMessage || ts.Diagnostics.Identifier_expected);
        }
        function parseIdentifier(diagnosticMessage) {
            return createIdentifier(isIdentifier(), diagnosticMessage);
        }
        function parseIdentifierName() {
            return createIdentifier(ts.tokenIsIdentifierOrKeyword(token));
        }
        function isLiteralPropertyName() {
            return ts.tokenIsIdentifierOrKeyword(token) ||
                token === 9 ||
                token === 8;
        }
        function parsePropertyNameWorker(allowComputedPropertyNames) {
            if (token === 9 || token === 8) {
                return parseLiteralNode(true);
            }
            if (allowComputedPropertyNames && token === 19) {
                return parseComputedPropertyName();
            }
            return parseIdentifierName();
        }
        function parsePropertyName() {
            return parsePropertyNameWorker(true);
        }
        function parseSimplePropertyName() {
            return parsePropertyNameWorker(false);
        }
        function isSimplePropertyName() {
            return token === 9 || token === 8 || ts.tokenIsIdentifierOrKeyword(token);
        }
        function parseComputedPropertyName() {
            var node = createNode(139);
            parseExpected(19);
            node.expression = allowInAnd(parseExpression);
            parseExpected(20);
            return finishNode(node);
        }
        function parseContextualModifier(t) {
            return token === t && tryParse(nextTokenCanFollowModifier);
        }
        function nextTokenIsOnSameLineAndCanFollowModifier() {
            nextToken();
            if (scanner.hasPrecedingLineBreak()) {
                return false;
            }
            return canFollowModifier();
        }
        function nextTokenCanFollowModifier() {
            if (token === 74) {
                return nextToken() === 81;
            }
            if (token === 82) {
                nextToken();
                if (token === 77) {
                    return lookAhead(nextTokenIsClassOrFunction);
                }
                return token !== 37 && token !== 116 && token !== 15 && canFollowModifier();
            }
            if (token === 77) {
                return nextTokenIsClassOrFunction();
            }
            if (token === 113) {
                nextToken();
                return canFollowModifier();
            }
            return nextTokenIsOnSameLineAndCanFollowModifier();
        }
        function parseAnyContextualModifier() {
            return ts.isModifierKind(token) && tryParse(nextTokenCanFollowModifier);
        }
        function canFollowModifier() {
            return token === 19
                || token === 15
                || token === 37
                || isLiteralPropertyName();
        }
        function nextTokenIsClassOrFunction() {
            nextToken();
            return token === 73 || token === 87;
        }
        function isListElement(parsingContext, inErrorRecovery) {
            var node = currentNode(parsingContext);
            if (node) {
                return true;
            }
            switch (parsingContext) {
                case 0:
                case 1:
                case 3:
                    return !(token === 23 && inErrorRecovery) && isStartOfStatement();
                case 2:
                    return token === 71 || token === 77;
                case 4:
                    return lookAhead(isTypeMemberStart);
                case 5:
                    return lookAhead(isClassMemberStart) || (token === 23 && !inErrorRecovery);
                case 6:
                    return token === 19 || isLiteralPropertyName();
                case 12:
                    return token === 19 || token === 37 || isLiteralPropertyName();
                case 9:
                    return token === 19 || isLiteralPropertyName();
                case 7:
                    if (token === 15) {
                        return lookAhead(isValidHeritageClauseObjectLiteral);
                    }
                    if (!inErrorRecovery) {
                        return isStartOfLeftHandSideExpression() && !isHeritageClauseExtendsOrImplementsKeyword();
                    }
                    else {
                        return isIdentifier() && !isHeritageClauseExtendsOrImplementsKeyword();
                    }
                case 8:
                    return isIdentifierOrPattern();
                case 10:
                    return token === 24 || token === 22 || isIdentifierOrPattern();
                case 17:
                    return isIdentifier();
                case 11:
                case 15:
                    return token === 24 || token === 22 || isStartOfExpression();
                case 16:
                    return isStartOfParameter();
                case 18:
                case 19:
                    return token === 24 || isStartOfType();
                case 20:
                    return isHeritageClause();
                case 21:
                    return ts.tokenIsIdentifierOrKeyword(token);
                case 13:
                    return ts.tokenIsIdentifierOrKeyword(token) || token === 15;
                case 14:
                    return true;
                case 22:
                case 23:
                case 25:
                    return JSDocParser.isJSDocType();
                case 24:
                    return isSimplePropertyName();
            }
            ts.Debug.fail("Non-exhaustive case in 'isListElement'.");
        }
        function isValidHeritageClauseObjectLiteral() {
            ts.Debug.assert(token === 15);
            if (nextToken() === 16) {
                var next = nextToken();
                return next === 24 || next === 15 || next === 83 || next === 106;
            }
            return true;
        }
        function nextTokenIsIdentifier() {
            nextToken();
            return isIdentifier();
        }
        function nextTokenIsIdentifierOrKeyword() {
            nextToken();
            return ts.tokenIsIdentifierOrKeyword(token);
        }
        function isHeritageClauseExtendsOrImplementsKeyword() {
            if (token === 106 ||
                token === 83) {
                return lookAhead(nextTokenIsStartOfExpression);
            }
            return false;
        }
        function nextTokenIsStartOfExpression() {
            nextToken();
            return isStartOfExpression();
        }
        function isListTerminator(kind) {
            if (token === 1) {
                return true;
            }
            switch (kind) {
                case 1:
                case 2:
                case 4:
                case 5:
                case 6:
                case 12:
                case 9:
                case 21:
                    return token === 16;
                case 3:
                    return token === 16 || token === 71 || token === 77;
                case 7:
                    return token === 15 || token === 83 || token === 106;
                case 8:
                    return isVariableDeclaratorListTerminator();
                case 17:
                    return token === 27 || token === 17 || token === 15 || token === 83 || token === 106;
                case 11:
                    return token === 18 || token === 23;
                case 15:
                case 19:
                case 10:
                    return token === 20;
                case 16:
                    return token === 18 || token === 20;
                case 18:
                    return token === 27 || token === 17;
                case 20:
                    return token === 15 || token === 16;
                case 13:
                    return token === 27 || token === 39;
                case 14:
                    return token === 25 && lookAhead(nextTokenIsSlash);
                case 22:
                    return token === 18 || token === 54 || token === 16;
                case 23:
                    return token === 27 || token === 16;
                case 25:
                    return token === 20 || token === 16;
                case 24:
                    return token === 16;
            }
        }
        function isVariableDeclaratorListTerminator() {
            if (canParseSemicolon()) {
                return true;
            }
            if (isInOrOfKeyword(token)) {
                return true;
            }
            if (token === 34) {
                return true;
            }
            return false;
        }
        function isInSomeParsingContext() {
            for (var kind = 0; kind < 26; kind++) {
                if (parsingContext & (1 << kind)) {
                    if (isListElement(kind, true) || isListTerminator(kind)) {
                        return true;
                    }
                }
            }
            return false;
        }
        function parseList(kind, parseElement) {
            var saveParsingContext = parsingContext;
            parsingContext |= 1 << kind;
            var result = [];
            result.pos = getNodePos();
            while (!isListTerminator(kind)) {
                if (isListElement(kind, false)) {
                    var element = parseListElement(kind, parseElement);
                    result.push(element);
                    continue;
                }
                if (abortParsingListOrMoveToNextToken(kind)) {
                    break;
                }
            }
            result.end = getNodeEnd();
            parsingContext = saveParsingContext;
            return result;
        }
        function parseListElement(parsingContext, parseElement) {
            var node = currentNode(parsingContext);
            if (node) {
                return consumeNode(node);
            }
            return parseElement();
        }
        function currentNode(parsingContext) {
            if (parseErrorBeforeNextFinishedNode) {
                return undefined;
            }
            if (!syntaxCursor) {
                return undefined;
            }
            var node = syntaxCursor.currentNode(scanner.getStartPos());
            if (ts.nodeIsMissing(node)) {
                return undefined;
            }
            if (node.intersectsChange) {
                return undefined;
            }
            if (ts.containsParseError(node)) {
                return undefined;
            }
            var nodeContextFlags = node.flags & 197132288;
            if (nodeContextFlags !== contextFlags) {
                return undefined;
            }
            if (!canReuseNode(node, parsingContext)) {
                return undefined;
            }
            return node;
        }
        function consumeNode(node) {
            scanner.setTextPos(node.end);
            nextToken();
            return node;
        }
        function canReuseNode(node, parsingContext) {
            switch (parsingContext) {
                case 5:
                    return isReusableClassMember(node);
                case 2:
                    return isReusableSwitchClause(node);
                case 0:
                case 1:
                case 3:
                    return isReusableStatement(node);
                case 6:
                    return isReusableEnumMember(node);
                case 4:
                    return isReusableTypeMember(node);
                case 8:
                    return isReusableVariableDeclaration(node);
                case 16:
                    return isReusableParameter(node);
                case 20:
                case 17:
                case 19:
                case 18:
                case 11:
                case 12:
                case 7:
                case 13:
                case 14:
            }
            return false;
        }
        function isReusableClassMember(node) {
            if (node) {
                switch (node.kind) {
                    case 147:
                    case 152:
                    case 148:
                    case 149:
                    case 144:
                    case 197:
                        return true;
                    case 146:
                        var methodDeclaration = node;
                        var nameIsConstructor = methodDeclaration.name.kind === 69 &&
                            methodDeclaration.name.originalKeywordKind === 121;
                        return !nameIsConstructor;
                }
            }
            return false;
        }
        function isReusableSwitchClause(node) {
            if (node) {
                switch (node.kind) {
                    case 248:
                    case 249:
                        return true;
                }
            }
            return false;
        }
        function isReusableStatement(node) {
            if (node) {
                switch (node.kind) {
                    case 219:
                    case 199:
                    case 198:
                    case 202:
                    case 201:
                    case 214:
                    case 210:
                    case 212:
                    case 209:
                    case 208:
                    case 206:
                    case 207:
                    case 205:
                    case 204:
                    case 211:
                    case 200:
                    case 215:
                    case 213:
                    case 203:
                    case 216:
                    case 229:
                    case 228:
                    case 235:
                    case 234:
                    case 224:
                    case 220:
                    case 221:
                    case 223:
                    case 222:
                        return true;
                }
            }
            return false;
        }
        function isReusableEnumMember(node) {
            return node.kind === 254;
        }
        function isReusableTypeMember(node) {
            if (node) {
                switch (node.kind) {
                    case 151:
                    case 145:
                    case 152:
                    case 143:
                    case 150:
                        return true;
                }
            }
            return false;
        }
        function isReusableVariableDeclaration(node) {
            if (node.kind !== 217) {
                return false;
            }
            var variableDeclarator = node;
            return variableDeclarator.initializer === undefined;
        }
        function isReusableParameter(node) {
            if (node.kind !== 141) {
                return false;
            }
            var parameter = node;
            return parameter.initializer === undefined;
        }
        function abortParsingListOrMoveToNextToken(kind) {
            parseErrorAtCurrentToken(parsingContextErrors(kind));
            if (isInSomeParsingContext()) {
                return true;
            }
            nextToken();
            return false;
        }
        function parsingContextErrors(context) {
            switch (context) {
                case 0: return ts.Diagnostics.Declaration_or_statement_expected;
                case 1: return ts.Diagnostics.Declaration_or_statement_expected;
                case 2: return ts.Diagnostics.case_or_default_expected;
                case 3: return ts.Diagnostics.Statement_expected;
                case 4: return ts.Diagnostics.Property_or_signature_expected;
                case 5: return ts.Diagnostics.Unexpected_token_A_constructor_method_accessor_or_property_was_expected;
                case 6: return ts.Diagnostics.Enum_member_expected;
                case 7: return ts.Diagnostics.Expression_expected;
                case 8: return ts.Diagnostics.Variable_declaration_expected;
                case 9: return ts.Diagnostics.Property_destructuring_pattern_expected;
                case 10: return ts.Diagnostics.Array_element_destructuring_pattern_expected;
                case 11: return ts.Diagnostics.Argument_expression_expected;
                case 12: return ts.Diagnostics.Property_assignment_expected;
                case 15: return ts.Diagnostics.Expression_or_comma_expected;
                case 16: return ts.Diagnostics.Parameter_declaration_expected;
                case 17: return ts.Diagnostics.Type_parameter_declaration_expected;
                case 18: return ts.Diagnostics.Type_argument_expected;
                case 19: return ts.Diagnostics.Type_expected;
                case 20: return ts.Diagnostics.Unexpected_token_expected;
                case 21: return ts.Diagnostics.Identifier_expected;
                case 13: return ts.Diagnostics.Identifier_expected;
                case 14: return ts.Diagnostics.Identifier_expected;
                case 22: return ts.Diagnostics.Parameter_declaration_expected;
                case 23: return ts.Diagnostics.Type_argument_expected;
                case 25: return ts.Diagnostics.Type_expected;
                case 24: return ts.Diagnostics.Property_assignment_expected;
            }
        }
        ;
        function parseDelimitedList(kind, parseElement, considerSemicolonAsDelimiter) {
            var saveParsingContext = parsingContext;
            parsingContext |= 1 << kind;
            var result = [];
            result.pos = getNodePos();
            var commaStart = -1;
            while (true) {
                if (isListElement(kind, false)) {
                    result.push(parseListElement(kind, parseElement));
                    commaStart = scanner.getTokenPos();
                    if (parseOptional(24)) {
                        continue;
                    }
                    commaStart = -1;
                    if (isListTerminator(kind)) {
                        break;
                    }
                    parseExpected(24);
                    if (considerSemicolonAsDelimiter && token === 23 && !scanner.hasPrecedingLineBreak()) {
                        nextToken();
                    }
                    continue;
                }
                if (isListTerminator(kind)) {
                    break;
                }
                if (abortParsingListOrMoveToNextToken(kind)) {
                    break;
                }
            }
            if (commaStart >= 0) {
                result.hasTrailingComma = true;
            }
            result.end = getNodeEnd();
            parsingContext = saveParsingContext;
            return result;
        }
        function createMissingList() {
            var pos = getNodePos();
            var result = [];
            result.pos = pos;
            result.end = pos;
            return result;
        }
        function parseBracketedList(kind, parseElement, open, close) {
            if (parseExpected(open)) {
                var result = parseDelimitedList(kind, parseElement);
                parseExpected(close);
                return result;
            }
            return createMissingList();
        }
        function parseEntityName(allowReservedWords, diagnosticMessage) {
            var entity = parseIdentifier(diagnosticMessage);
            while (parseOptional(21)) {
                var node = createNode(138, entity.pos);
                node.left = entity;
                node.right = parseRightSideOfDot(allowReservedWords);
                entity = finishNode(node);
            }
            return entity;
        }
        function parseRightSideOfDot(allowIdentifierNames) {
            if (scanner.hasPrecedingLineBreak() && ts.tokenIsIdentifierOrKeyword(token)) {
                var matchesPattern = lookAhead(nextTokenIsIdentifierOrKeywordOnSameLine);
                if (matchesPattern) {
                    return createMissingNode(69, true, ts.Diagnostics.Identifier_expected);
                }
            }
            return allowIdentifierNames ? parseIdentifierName() : parseIdentifier();
        }
        function parseTemplateExpression() {
            var template = createNode(188);
            template.head = parseTemplateLiteralFragment();
            ts.Debug.assert(template.head.kind === 12, "Template head has wrong token kind");
            var templateSpans = [];
            templateSpans.pos = getNodePos();
            do {
                templateSpans.push(parseTemplateSpan());
            } while (ts.lastOrUndefined(templateSpans).literal.kind === 13);
            templateSpans.end = getNodeEnd();
            template.templateSpans = templateSpans;
            return finishNode(template);
        }
        function parseTemplateSpan() {
            var span = createNode(196);
            span.expression = allowInAnd(parseExpression);
            var literal;
            if (token === 16) {
                reScanTemplateToken();
                literal = parseTemplateLiteralFragment();
            }
            else {
                literal = parseExpectedToken(14, false, ts.Diagnostics._0_expected, ts.tokenToString(16));
            }
            span.literal = literal;
            return finishNode(span);
        }
        function parseStringLiteralTypeNode() {
            return parseLiteralLikeNode(165, true);
        }
        function parseLiteralNode(internName) {
            return parseLiteralLikeNode(token, internName);
        }
        function parseTemplateLiteralFragment() {
            return parseLiteralLikeNode(token, false);
        }
        function parseLiteralLikeNode(kind, internName) {
            var node = createNode(kind);
            var text = scanner.getTokenValue();
            node.text = internName ? internIdentifier(text) : text;
            if (scanner.hasExtendedUnicodeEscape()) {
                node.hasExtendedUnicodeEscape = true;
            }
            if (scanner.isUnterminated()) {
                node.isUnterminated = true;
            }
            var tokenPos = scanner.getTokenPos();
            nextToken();
            finishNode(node);
            if (node.kind === 8
                && sourceText.charCodeAt(tokenPos) === 48
                && ts.isOctalDigit(sourceText.charCodeAt(tokenPos + 1))) {
                node.isOctalLiteral = true;
            }
            return node;
        }
        function parseTypeReference() {
            var typeName = parseEntityName(false, ts.Diagnostics.Type_expected);
            var node = createNode(154, typeName.pos);
            node.typeName = typeName;
            if (!scanner.hasPrecedingLineBreak() && token === 25) {
                node.typeArguments = parseBracketedList(18, parseType, 25, 27);
            }
            return finishNode(node);
        }
        function parseThisTypePredicate(lhs) {
            nextToken();
            var node = createNode(153, lhs.pos);
            node.parameterName = lhs;
            node.type = parseType();
            return finishNode(node);
        }
        function parseThisTypeNode() {
            var node = createNode(164);
            nextToken();
            return finishNode(node);
        }
        function parseTypeQuery() {
            var node = createNode(157);
            parseExpected(101);
            node.exprName = parseEntityName(true);
            return finishNode(node);
        }
        function parseTypeParameter() {
            var node = createNode(140);
            node.name = parseIdentifier();
            if (parseOptional(83)) {
                if (isStartOfType() || !isStartOfExpression()) {
                    node.constraint = parseType();
                }
                else {
                    node.expression = parseUnaryExpressionOrHigher();
                }
            }
            return finishNode(node);
        }
        function parseTypeParameters() {
            if (token === 25) {
                return parseBracketedList(17, parseTypeParameter, 25, 27);
            }
        }
        function parseParameterType() {
            if (parseOptional(54)) {
                return parseType();
            }
            return undefined;
        }
        function isStartOfParameter() {
            return token === 22 || isIdentifierOrPattern() || ts.isModifierKind(token) || token === 55 || token === 97;
        }
        function setModifiers(node, modifiers) {
            if (modifiers) {
                node.flags |= modifiers.flags;
                node.modifiers = modifiers;
            }
        }
        function parseParameter() {
            var node = createNode(141);
            if (token === 97) {
                node.name = createIdentifier(true, undefined);
                node.type = parseParameterType();
                return finishNode(node);
            }
            node.decorators = parseDecorators();
            setModifiers(node, parseModifiers());
            node.dotDotDotToken = parseOptionalToken(22);
            node.name = parseIdentifierOrPattern();
            if (ts.getFullWidth(node.name) === 0 && node.flags === 0 && ts.isModifierKind(token)) {
                nextToken();
            }
            node.questionToken = parseOptionalToken(53);
            node.type = parseParameterType();
            node.initializer = parseBindingElementInitializer(true);
            return addJSDocComment(finishNode(node));
        }
        function parseBindingElementInitializer(inParameter) {
            return inParameter ? parseParameterInitializer() : parseNonParameterInitializer();
        }
        function parseParameterInitializer() {
            return parseInitializer(true);
        }
        function fillSignature(returnToken, yieldContext, awaitContext, requireCompleteParameterList, signature) {
            var returnTokenRequired = returnToken === 34;
            signature.typeParameters = parseTypeParameters();
            signature.parameters = parseParameterList(yieldContext, awaitContext, requireCompleteParameterList);
            if (returnTokenRequired) {
                parseExpected(returnToken);
                signature.type = parseTypeOrTypePredicate();
            }
            else if (parseOptional(returnToken)) {
                signature.type = parseTypeOrTypePredicate();
            }
        }
        function parseParameterList(yieldContext, awaitContext, requireCompleteParameterList) {
            if (parseExpected(17)) {
                var savedYieldContext = inYieldContext();
                var savedAwaitContext = inAwaitContext();
                setYieldContext(yieldContext);
                setAwaitContext(awaitContext);
                var result = parseDelimitedList(16, parseParameter);
                setYieldContext(savedYieldContext);
                setAwaitContext(savedAwaitContext);
                if (!parseExpected(18) && requireCompleteParameterList) {
                    return undefined;
                }
                return result;
            }
            return requireCompleteParameterList ? undefined : createMissingList();
        }
        function parseTypeMemberSemicolon() {
            if (parseOptional(24)) {
                return;
            }
            parseSemicolon();
        }
        function parseSignatureMember(kind) {
            var node = createNode(kind);
            if (kind === 151) {
                parseExpected(92);
            }
            fillSignature(54, false, false, false, node);
            parseTypeMemberSemicolon();
            return finishNode(node);
        }
        function isIndexSignature() {
            if (token !== 19) {
                return false;
            }
            return lookAhead(isUnambiguouslyIndexSignature);
        }
        function isUnambiguouslyIndexSignature() {
            nextToken();
            if (token === 22 || token === 20) {
                return true;
            }
            if (ts.isModifierKind(token)) {
                nextToken();
                if (isIdentifier()) {
                    return true;
                }
            }
            else if (!isIdentifier()) {
                return false;
            }
            else {
                nextToken();
            }
            if (token === 54 || token === 24) {
                return true;
            }
            if (token !== 53) {
                return false;
            }
            nextToken();
            return token === 54 || token === 24 || token === 20;
        }
        function parseIndexSignatureDeclaration(fullStart, decorators, modifiers) {
            var node = createNode(152, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            node.parameters = parseBracketedList(16, parseParameter, 19, 20);
            node.type = parseTypeAnnotation();
            parseTypeMemberSemicolon();
            return finishNode(node);
        }
        function parsePropertyOrMethodSignature(fullStart, modifiers) {
            var name = parsePropertyName();
            var questionToken = parseOptionalToken(53);
            if (token === 17 || token === 25) {
                var method = createNode(145, fullStart);
                setModifiers(method, modifiers);
                method.name = name;
                method.questionToken = questionToken;
                fillSignature(54, false, false, false, method);
                parseTypeMemberSemicolon();
                return finishNode(method);
            }
            else {
                var property = createNode(143, fullStart);
                setModifiers(property, modifiers);
                property.name = name;
                property.questionToken = questionToken;
                property.type = parseTypeAnnotation();
                if (token === 56) {
                    property.initializer = parseNonParameterInitializer();
                }
                parseTypeMemberSemicolon();
                return finishNode(property);
            }
        }
        function isTypeMemberStart() {
            var idToken;
            if (token === 17 || token === 25) {
                return true;
            }
            while (ts.isModifierKind(token)) {
                idToken = token;
                nextToken();
            }
            if (token === 19) {
                return true;
            }
            if (isLiteralPropertyName()) {
                idToken = token;
                nextToken();
            }
            if (idToken) {
                return token === 17 ||
                    token === 25 ||
                    token === 53 ||
                    token === 54 ||
                    canParseSemicolon();
            }
            return false;
        }
        function parseTypeMember() {
            if (token === 17 || token === 25) {
                return parseSignatureMember(150);
            }
            if (token === 92 && lookAhead(isStartOfConstructSignature)) {
                return parseSignatureMember(151);
            }
            var fullStart = getNodePos();
            var modifiers = parseModifiers();
            if (isIndexSignature()) {
                return parseIndexSignatureDeclaration(fullStart, undefined, modifiers);
            }
            return parsePropertyOrMethodSignature(fullStart, modifiers);
        }
        function isStartOfConstructSignature() {
            nextToken();
            return token === 17 || token === 25;
        }
        function parseTypeLiteral() {
            var node = createNode(158);
            node.members = parseObjectTypeMembers();
            return finishNode(node);
        }
        function parseObjectTypeMembers() {
            var members;
            if (parseExpected(15)) {
                members = parseList(4, parseTypeMember);
                parseExpected(16);
            }
            else {
                members = createMissingList();
            }
            return members;
        }
        function parseTupleType() {
            var node = createNode(160);
            node.elementTypes = parseBracketedList(19, parseType, 19, 20);
            return finishNode(node);
        }
        function parseParenthesizedType() {
            var node = createNode(163);
            parseExpected(17);
            node.type = parseType();
            parseExpected(18);
            return finishNode(node);
        }
        function parseFunctionOrConstructorType(kind) {
            var node = createNode(kind);
            if (kind === 156) {
                parseExpected(92);
            }
            fillSignature(34, false, false, false, node);
            return finishNode(node);
        }
        function parseKeywordAndNoDot() {
            var node = parseTokenNode();
            return token === 21 ? undefined : node;
        }
        function parseNonArrayType() {
            switch (token) {
                case 117:
                case 131:
                case 129:
                case 120:
                case 132:
                case 134:
                    var node = tryParse(parseKeywordAndNoDot);
                    return node || parseTypeReference();
                case 9:
                    return parseStringLiteralTypeNode();
                case 103:
                case 93:
                    return parseTokenNode();
                case 97: {
                    var thisKeyword = parseThisTypeNode();
                    if (token === 124 && !scanner.hasPrecedingLineBreak()) {
                        return parseThisTypePredicate(thisKeyword);
                    }
                    else {
                        return thisKeyword;
                    }
                }
                case 101:
                    return parseTypeQuery();
                case 15:
                    return parseTypeLiteral();
                case 19:
                    return parseTupleType();
                case 17:
                    return parseParenthesizedType();
                default:
                    return parseTypeReference();
            }
        }
        function isStartOfType() {
            switch (token) {
                case 117:
                case 131:
                case 129:
                case 120:
                case 132:
                case 103:
                case 134:
                case 93:
                case 97:
                case 101:
                case 15:
                case 19:
                case 25:
                case 92:
                case 9:
                    return true;
                case 17:
                    return lookAhead(isStartOfParenthesizedOrFunctionType);
                default:
                    return isIdentifier();
            }
        }
        function isStartOfParenthesizedOrFunctionType() {
            nextToken();
            return token === 18 || isStartOfParameter() || isStartOfType();
        }
        function parseArrayTypeOrHigher() {
            var type = parseNonArrayType();
            while (!scanner.hasPrecedingLineBreak() && parseOptional(19)) {
                parseExpected(20);
                var node = createNode(159, type.pos);
                node.elementType = type;
                type = finishNode(node);
            }
            return type;
        }
        function parseUnionOrIntersectionType(kind, parseConstituentType, operator) {
            var type = parseConstituentType();
            if (token === operator) {
                var types = [type];
                types.pos = type.pos;
                while (parseOptional(operator)) {
                    types.push(parseConstituentType());
                }
                types.end = getNodeEnd();
                var node = createNode(kind, type.pos);
                node.types = types;
                type = finishNode(node);
            }
            return type;
        }
        function parseIntersectionTypeOrHigher() {
            return parseUnionOrIntersectionType(162, parseArrayTypeOrHigher, 46);
        }
        function parseUnionTypeOrHigher() {
            return parseUnionOrIntersectionType(161, parseIntersectionTypeOrHigher, 47);
        }
        function isStartOfFunctionType() {
            if (token === 25) {
                return true;
            }
            return token === 17 && lookAhead(isUnambiguouslyStartOfFunctionType);
        }
        function skipParameterStart() {
            if (ts.isModifierKind(token)) {
                parseModifiers();
            }
            if (isIdentifier() || token === 97) {
                nextToken();
                return true;
            }
            if (token === 19 || token === 15) {
                var previousErrorCount = parseDiagnostics.length;
                parseIdentifierOrPattern();
                return previousErrorCount === parseDiagnostics.length;
            }
            return false;
        }
        function isUnambiguouslyStartOfFunctionType() {
            nextToken();
            if (token === 18 || token === 22) {
                return true;
            }
            if (skipParameterStart()) {
                if (token === 54 || token === 24 ||
                    token === 53 || token === 56) {
                    return true;
                }
                if (token === 18) {
                    nextToken();
                    if (token === 34) {
                        return true;
                    }
                }
            }
            return false;
        }
        function parseTypeOrTypePredicate() {
            var typePredicateVariable = isIdentifier() && tryParse(parseTypePredicatePrefix);
            var type = parseType();
            if (typePredicateVariable) {
                var node = createNode(153, typePredicateVariable.pos);
                node.parameterName = typePredicateVariable;
                node.type = type;
                return finishNode(node);
            }
            else {
                return type;
            }
        }
        function parseTypePredicatePrefix() {
            var id = parseIdentifier();
            if (token === 124 && !scanner.hasPrecedingLineBreak()) {
                nextToken();
                return id;
            }
        }
        function parseType() {
            return doOutsideOfContext(41943040, parseTypeWorker);
        }
        function parseTypeWorker() {
            if (isStartOfFunctionType()) {
                return parseFunctionOrConstructorType(155);
            }
            if (token === 92) {
                return parseFunctionOrConstructorType(156);
            }
            return parseUnionTypeOrHigher();
        }
        function parseTypeAnnotation() {
            return parseOptional(54) ? parseType() : undefined;
        }
        function isStartOfLeftHandSideExpression() {
            switch (token) {
                case 97:
                case 95:
                case 93:
                case 99:
                case 84:
                case 8:
                case 9:
                case 11:
                case 12:
                case 17:
                case 19:
                case 15:
                case 87:
                case 73:
                case 92:
                case 39:
                case 61:
                case 69:
                    return true;
                default:
                    return isIdentifier();
            }
        }
        function isStartOfExpression() {
            if (isStartOfLeftHandSideExpression()) {
                return true;
            }
            switch (token) {
                case 35:
                case 36:
                case 50:
                case 49:
                case 78:
                case 101:
                case 103:
                case 41:
                case 42:
                case 25:
                case 119:
                case 114:
                    return true;
                default:
                    if (isBinaryOperator()) {
                        return true;
                    }
                    return isIdentifier();
            }
        }
        function isStartOfExpressionStatement() {
            return token !== 15 &&
                token !== 87 &&
                token !== 73 &&
                token !== 55 &&
                isStartOfExpression();
        }
        function parseExpression() {
            var saveDecoratorContext = inDecoratorContext();
            if (saveDecoratorContext) {
                setDecoratorContext(false);
            }
            var expr = parseAssignmentExpressionOrHigher();
            var operatorToken;
            while ((operatorToken = parseOptionalToken(24))) {
                expr = makeBinaryExpression(expr, operatorToken, parseAssignmentExpressionOrHigher());
            }
            if (saveDecoratorContext) {
                setDecoratorContext(true);
            }
            return expr;
        }
        function parseInitializer(inParameter) {
            if (token !== 56) {
                if (scanner.hasPrecedingLineBreak() || (inParameter && token === 15) || !isStartOfExpression()) {
                    return undefined;
                }
            }
            parseExpected(56);
            return parseAssignmentExpressionOrHigher();
        }
        function parseAssignmentExpressionOrHigher() {
            if (isYieldExpression()) {
                return parseYieldExpression();
            }
            var arrowExpression = tryParseParenthesizedArrowFunctionExpression();
            if (arrowExpression) {
                return arrowExpression;
            }
            var expr = parseBinaryExpressionOrHigher(0);
            if (expr.kind === 69 && token === 34) {
                return parseSimpleArrowFunctionExpression(expr);
            }
            if (ts.isLeftHandSideExpression(expr) && ts.isAssignmentOperator(reScanGreaterToken())) {
                return makeBinaryExpression(expr, parseTokenNode(), parseAssignmentExpressionOrHigher());
            }
            return parseConditionalExpressionRest(expr);
        }
        function isYieldExpression() {
            if (token === 114) {
                if (inYieldContext()) {
                    return true;
                }
                return lookAhead(nextTokenIsIdentifierOrKeywordOrNumberOnSameLine);
            }
            return false;
        }
        function nextTokenIsIdentifierOnSameLine() {
            nextToken();
            return !scanner.hasPrecedingLineBreak() && isIdentifier();
        }
        function parseYieldExpression() {
            var node = createNode(189);
            nextToken();
            if (!scanner.hasPrecedingLineBreak() &&
                (token === 37 || isStartOfExpression())) {
                node.asteriskToken = parseOptionalToken(37);
                node.expression = parseAssignmentExpressionOrHigher();
                return finishNode(node);
            }
            else {
                return finishNode(node);
            }
        }
        function parseSimpleArrowFunctionExpression(identifier) {
            ts.Debug.assert(token === 34, "parseSimpleArrowFunctionExpression should only have been called if we had a =>");
            var node = createNode(179, identifier.pos);
            var parameter = createNode(141, identifier.pos);
            parameter.name = identifier;
            finishNode(parameter);
            node.parameters = [parameter];
            node.parameters.pos = parameter.pos;
            node.parameters.end = parameter.end;
            node.equalsGreaterThanToken = parseExpectedToken(34, false, ts.Diagnostics._0_expected, "=>");
            node.body = parseArrowFunctionExpressionBody(false);
            return finishNode(node);
        }
        function tryParseParenthesizedArrowFunctionExpression() {
            var triState = isParenthesizedArrowFunctionExpression();
            if (triState === 0) {
                return undefined;
            }
            var arrowFunction = triState === 1
                ? parseParenthesizedArrowFunctionExpressionHead(true)
                : tryParse(parsePossibleParenthesizedArrowFunctionExpressionHead);
            if (!arrowFunction) {
                return undefined;
            }
            var isAsync = !!(arrowFunction.flags & 256);
            var lastToken = token;
            arrowFunction.equalsGreaterThanToken = parseExpectedToken(34, false, ts.Diagnostics._0_expected, "=>");
            arrowFunction.body = (lastToken === 34 || lastToken === 15)
                ? parseArrowFunctionExpressionBody(isAsync)
                : parseIdentifier();
            return finishNode(arrowFunction);
        }
        function isParenthesizedArrowFunctionExpression() {
            if (token === 17 || token === 25 || token === 118) {
                return lookAhead(isParenthesizedArrowFunctionExpressionWorker);
            }
            if (token === 34) {
                return 1;
            }
            return 0;
        }
        function isParenthesizedArrowFunctionExpressionWorker() {
            if (token === 118) {
                nextToken();
                if (scanner.hasPrecedingLineBreak()) {
                    return 0;
                }
                if (token !== 17 && token !== 25) {
                    return 0;
                }
            }
            var first = token;
            var second = nextToken();
            if (first === 17) {
                if (second === 18) {
                    var third = nextToken();
                    switch (third) {
                        case 34:
                        case 54:
                        case 15:
                            return 1;
                        default:
                            return 0;
                    }
                }
                if (second === 19 || second === 15) {
                    return 2;
                }
                if (second === 22) {
                    return 1;
                }
                if (!isIdentifier()) {
                    return 0;
                }
                if (nextToken() === 54) {
                    return 1;
                }
                return 2;
            }
            else {
                ts.Debug.assert(first === 25);
                if (!isIdentifier()) {
                    return 0;
                }
                if (sourceFile.languageVariant === 1) {
                    var isArrowFunctionInJsx = lookAhead(function () {
                        var third = nextToken();
                        if (third === 83) {
                            var fourth = nextToken();
                            switch (fourth) {
                                case 56:
                                case 27:
                                    return false;
                                default:
                                    return true;
                            }
                        }
                        else if (third === 24) {
                            return true;
                        }
                        return false;
                    });
                    if (isArrowFunctionInJsx) {
                        return 1;
                    }
                    return 0;
                }
                return 2;
            }
        }
        function parsePossibleParenthesizedArrowFunctionExpressionHead() {
            return parseParenthesizedArrowFunctionExpressionHead(false);
        }
        function parseParenthesizedArrowFunctionExpressionHead(allowAmbiguity) {
            var node = createNode(179);
            setModifiers(node, parseModifiersForArrowFunction());
            var isAsync = !!(node.flags & 256);
            fillSignature(54, false, isAsync, !allowAmbiguity, node);
            if (!node.parameters) {
                return undefined;
            }
            if (!allowAmbiguity && token !== 34 && token !== 15) {
                return undefined;
            }
            return node;
        }
        function parseArrowFunctionExpressionBody(isAsync) {
            if (token === 15) {
                return parseFunctionBlock(false, isAsync, false);
            }
            if (token !== 23 &&
                token !== 87 &&
                token !== 73 &&
                isStartOfStatement() &&
                !isStartOfExpressionStatement()) {
                return parseFunctionBlock(false, isAsync, true);
            }
            return isAsync
                ? doInAwaitContext(parseAssignmentExpressionOrHigher)
                : doOutsideOfAwaitContext(parseAssignmentExpressionOrHigher);
        }
        function parseConditionalExpressionRest(leftOperand) {
            var questionToken = parseOptionalToken(53);
            if (!questionToken) {
                return leftOperand;
            }
            var node = createNode(187, leftOperand.pos);
            node.condition = leftOperand;
            node.questionToken = questionToken;
            node.whenTrue = doOutsideOfContext(disallowInAndDecoratorContext, parseAssignmentExpressionOrHigher);
            node.colonToken = parseExpectedToken(54, false, ts.Diagnostics._0_expected, ts.tokenToString(54));
            node.whenFalse = parseAssignmentExpressionOrHigher();
            return finishNode(node);
        }
        function parseBinaryExpressionOrHigher(precedence) {
            var leftOperand = parseUnaryExpressionOrHigher();
            return parseBinaryExpressionRest(precedence, leftOperand);
        }
        function isInOrOfKeyword(t) {
            return t === 90 || t === 137;
        }
        function parseBinaryExpressionRest(precedence, leftOperand) {
            while (true) {
                reScanGreaterToken();
                var newPrecedence = getBinaryOperatorPrecedence();
                var consumeCurrentOperator = token === 38 ?
                    newPrecedence >= precedence :
                    newPrecedence > precedence;
                if (!consumeCurrentOperator) {
                    break;
                }
                if (token === 90 && inDisallowInContext()) {
                    break;
                }
                if (token === 116) {
                    if (scanner.hasPrecedingLineBreak()) {
                        break;
                    }
                    else {
                        nextToken();
                        leftOperand = makeAsExpression(leftOperand, parseType());
                    }
                }
                else {
                    leftOperand = makeBinaryExpression(leftOperand, parseTokenNode(), parseBinaryExpressionOrHigher(newPrecedence));
                }
            }
            return leftOperand;
        }
        function isBinaryOperator() {
            if (inDisallowInContext() && token === 90) {
                return false;
            }
            return getBinaryOperatorPrecedence() > 0;
        }
        function getBinaryOperatorPrecedence() {
            switch (token) {
                case 52:
                    return 1;
                case 51:
                    return 2;
                case 47:
                    return 3;
                case 48:
                    return 4;
                case 46:
                    return 5;
                case 30:
                case 31:
                case 32:
                case 33:
                    return 6;
                case 25:
                case 27:
                case 28:
                case 29:
                case 91:
                case 90:
                case 116:
                    return 7;
                case 43:
                case 44:
                case 45:
                    return 8;
                case 35:
                case 36:
                    return 9;
                case 37:
                case 39:
                case 40:
                    return 10;
                case 38:
                    return 11;
            }
            return -1;
        }
        function makeBinaryExpression(left, operatorToken, right) {
            var node = createNode(186, left.pos);
            node.left = left;
            node.operatorToken = operatorToken;
            node.right = right;
            return finishNode(node);
        }
        function makeAsExpression(left, right) {
            var node = createNode(194, left.pos);
            node.expression = left;
            node.type = right;
            return finishNode(node);
        }
        function parsePrefixUnaryExpression() {
            var node = createNode(184);
            node.operator = token;
            nextToken();
            node.operand = parseSimpleUnaryExpression();
            return finishNode(node);
        }
        function parseDeleteExpression() {
            var node = createNode(180);
            nextToken();
            node.expression = parseSimpleUnaryExpression();
            return finishNode(node);
        }
        function parseTypeOfExpression() {
            var node = createNode(181);
            nextToken();
            node.expression = parseSimpleUnaryExpression();
            return finishNode(node);
        }
        function parseVoidExpression() {
            var node = createNode(182);
            nextToken();
            node.expression = parseSimpleUnaryExpression();
            return finishNode(node);
        }
        function isAwaitExpression() {
            if (token === 119) {
                if (inAwaitContext()) {
                    return true;
                }
                return lookAhead(nextTokenIsIdentifierOnSameLine);
            }
            return false;
        }
        function parseAwaitExpression() {
            var node = createNode(183);
            nextToken();
            node.expression = parseSimpleUnaryExpression();
            return finishNode(node);
        }
        function parseUnaryExpressionOrHigher() {
            if (isAwaitExpression()) {
                return parseAwaitExpression();
            }
            if (isIncrementExpression()) {
                var incrementExpression = parseIncrementExpression();
                return token === 38 ?
                    parseBinaryExpressionRest(getBinaryOperatorPrecedence(), incrementExpression) :
                    incrementExpression;
            }
            var unaryOperator = token;
            var simpleUnaryExpression = parseSimpleUnaryExpression();
            if (token === 38) {
                var start = ts.skipTrivia(sourceText, simpleUnaryExpression.pos);
                if (simpleUnaryExpression.kind === 176) {
                    parseErrorAtPosition(start, simpleUnaryExpression.end - start, ts.Diagnostics.A_type_assertion_expression_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses);
                }
                else {
                    parseErrorAtPosition(start, simpleUnaryExpression.end - start, ts.Diagnostics.An_unary_expression_with_the_0_operator_is_not_allowed_in_the_left_hand_side_of_an_exponentiation_expression_Consider_enclosing_the_expression_in_parentheses, ts.tokenToString(unaryOperator));
                }
            }
            return simpleUnaryExpression;
        }
        function parseSimpleUnaryExpression() {
            switch (token) {
                case 35:
                case 36:
                case 50:
                case 49:
                    return parsePrefixUnaryExpression();
                case 78:
                    return parseDeleteExpression();
                case 101:
                    return parseTypeOfExpression();
                case 103:
                    return parseVoidExpression();
                case 25:
                    return parseTypeAssertion();
                default:
                    return parseIncrementExpression();
            }
        }
        function isIncrementExpression() {
            switch (token) {
                case 35:
                case 36:
                case 50:
                case 49:
                case 78:
                case 101:
                case 103:
                    return false;
                case 25:
                    if (sourceFile.languageVariant !== 1) {
                        return false;
                    }
                default:
                    return true;
            }
        }
        function parseIncrementExpression() {
            if (token === 41 || token === 42) {
                var node = createNode(184);
                node.operator = token;
                nextToken();
                node.operand = parseLeftHandSideExpressionOrHigher();
                return finishNode(node);
            }
            else if (sourceFile.languageVariant === 1 && token === 25 && lookAhead(nextTokenIsIdentifierOrKeyword)) {
                return parseJsxElementOrSelfClosingElement(true);
            }
            var expression = parseLeftHandSideExpressionOrHigher();
            ts.Debug.assert(ts.isLeftHandSideExpression(expression));
            if ((token === 41 || token === 42) && !scanner.hasPrecedingLineBreak()) {
                var node = createNode(185, expression.pos);
                node.operand = expression;
                node.operator = token;
                nextToken();
                return finishNode(node);
            }
            return expression;
        }
        function parseLeftHandSideExpressionOrHigher() {
            var expression = token === 95
                ? parseSuperExpression()
                : parseMemberExpressionOrHigher();
            return parseCallExpressionRest(expression);
        }
        function parseMemberExpressionOrHigher() {
            var expression = parsePrimaryExpression();
            return parseMemberExpressionRest(expression);
        }
        function parseSuperExpression() {
            var expression = parseTokenNode();
            if (token === 17 || token === 21 || token === 19) {
                return expression;
            }
            var node = createNode(171, expression.pos);
            node.expression = expression;
            node.dotToken = parseExpectedToken(21, false, ts.Diagnostics.super_must_be_followed_by_an_argument_list_or_member_access);
            node.name = parseRightSideOfDot(true);
            return finishNode(node);
        }
        function tagNamesAreEquivalent(lhs, rhs) {
            if (lhs.kind !== rhs.kind) {
                return false;
            }
            if (lhs.kind === 69) {
                return lhs.text === rhs.text;
            }
            return lhs.right.text === rhs.right.text &&
                tagNamesAreEquivalent(lhs.left, rhs.left);
        }
        function parseJsxElementOrSelfClosingElement(inExpressionContext) {
            var opening = parseJsxOpeningOrSelfClosingElement(inExpressionContext);
            var result;
            if (opening.kind === 242) {
                var node = createNode(240, opening.pos);
                node.openingElement = opening;
                node.children = parseJsxChildren(node.openingElement.tagName);
                node.closingElement = parseJsxClosingElement(inExpressionContext);
                if (!tagNamesAreEquivalent(node.openingElement.tagName, node.closingElement.tagName)) {
                    parseErrorAtPosition(node.closingElement.pos, node.closingElement.end - node.closingElement.pos, ts.Diagnostics.Expected_corresponding_JSX_closing_tag_for_0, ts.getTextOfNodeFromSourceText(sourceText, node.openingElement.tagName));
                }
                result = finishNode(node);
            }
            else {
                ts.Debug.assert(opening.kind === 241);
                result = opening;
            }
            if (inExpressionContext && token === 25) {
                var invalidElement = tryParse(function () { return parseJsxElementOrSelfClosingElement(true); });
                if (invalidElement) {
                    parseErrorAtCurrentToken(ts.Diagnostics.JSX_expressions_must_have_one_parent_element);
                    var badNode = createNode(186, result.pos);
                    badNode.end = invalidElement.end;
                    badNode.left = result;
                    badNode.right = invalidElement;
                    badNode.operatorToken = createMissingNode(24, false, undefined);
                    badNode.operatorToken.pos = badNode.operatorToken.end = badNode.right.pos;
                    return badNode;
                }
            }
            return result;
        }
        function parseJsxText() {
            var node = createNode(243, scanner.getStartPos());
            token = scanner.scanJsxToken();
            return finishNode(node);
        }
        function parseJsxChild() {
            switch (token) {
                case 243:
                    return parseJsxText();
                case 15:
                    return parseJsxExpression(false);
                case 25:
                    return parseJsxElementOrSelfClosingElement(false);
            }
            ts.Debug.fail("Unknown JSX child kind " + token);
        }
        function parseJsxChildren(openingTagName) {
            var result = [];
            result.pos = scanner.getStartPos();
            var saveParsingContext = parsingContext;
            parsingContext |= 1 << 14;
            while (true) {
                token = scanner.reScanJsxToken();
                if (token === 26) {
                    break;
                }
                else if (token === 1) {
                    parseErrorAtPosition(openingTagName.pos, openingTagName.end - openingTagName.pos, ts.Diagnostics.JSX_element_0_has_no_corresponding_closing_tag, ts.getTextOfNodeFromSourceText(sourceText, openingTagName));
                    break;
                }
                result.push(parseJsxChild());
            }
            result.end = scanner.getTokenPos();
            parsingContext = saveParsingContext;
            return result;
        }
        function parseJsxOpeningOrSelfClosingElement(inExpressionContext) {
            var fullStart = scanner.getStartPos();
            parseExpected(25);
            var tagName = parseJsxElementName();
            var attributes = parseList(13, parseJsxAttribute);
            var node;
            if (token === 27) {
                node = createNode(242, fullStart);
                scanJsxText();
            }
            else {
                parseExpected(39);
                if (inExpressionContext) {
                    parseExpected(27);
                }
                else {
                    parseExpected(27, undefined, false);
                    scanJsxText();
                }
                node = createNode(241, fullStart);
            }
            node.tagName = tagName;
            node.attributes = attributes;
            return finishNode(node);
        }
        function parseJsxElementName() {
            scanJsxIdentifier();
            var elementName = parseIdentifierName();
            while (parseOptional(21)) {
                scanJsxIdentifier();
                var node = createNode(138, elementName.pos);
                node.left = elementName;
                node.right = parseIdentifierName();
                elementName = finishNode(node);
            }
            return elementName;
        }
        function parseJsxExpression(inExpressionContext) {
            var node = createNode(247);
            parseExpected(15);
            if (token !== 16) {
                node.expression = parseAssignmentExpressionOrHigher();
            }
            if (inExpressionContext) {
                parseExpected(16);
            }
            else {
                parseExpected(16, undefined, false);
                scanJsxText();
            }
            return finishNode(node);
        }
        function parseJsxAttribute() {
            if (token === 15) {
                return parseJsxSpreadAttribute();
            }
            scanJsxIdentifier();
            var node = createNode(245);
            node.name = parseIdentifierName();
            if (parseOptional(56)) {
                switch (token) {
                    case 9:
                        node.initializer = parseLiteralNode();
                        break;
                    default:
                        node.initializer = parseJsxExpression(true);
                        break;
                }
            }
            return finishNode(node);
        }
        function parseJsxSpreadAttribute() {
            var node = createNode(246);
            parseExpected(15);
            parseExpected(22);
            node.expression = parseExpression();
            parseExpected(16);
            return finishNode(node);
        }
        function parseJsxClosingElement(inExpressionContext) {
            var node = createNode(244);
            parseExpected(26);
            node.tagName = parseJsxElementName();
            if (inExpressionContext) {
                parseExpected(27);
            }
            else {
                parseExpected(27, undefined, false);
                scanJsxText();
            }
            return finishNode(node);
        }
        function parseTypeAssertion() {
            var node = createNode(176);
            parseExpected(25);
            node.type = parseType();
            parseExpected(27);
            node.expression = parseSimpleUnaryExpression();
            return finishNode(node);
        }
        function parseMemberExpressionRest(expression) {
            while (true) {
                var dotToken = parseOptionalToken(21);
                if (dotToken) {
                    var propertyAccess = createNode(171, expression.pos);
                    propertyAccess.expression = expression;
                    propertyAccess.dotToken = dotToken;
                    propertyAccess.name = parseRightSideOfDot(true);
                    expression = finishNode(propertyAccess);
                    continue;
                }
                if (token === 49 && !scanner.hasPrecedingLineBreak()) {
                    nextToken();
                    var nonNullExpression = createNode(195, expression.pos);
                    nonNullExpression.expression = expression;
                    expression = finishNode(nonNullExpression);
                    continue;
                }
                if (!inDecoratorContext() && parseOptional(19)) {
                    var indexedAccess = createNode(172, expression.pos);
                    indexedAccess.expression = expression;
                    if (token !== 20) {
                        indexedAccess.argumentExpression = allowInAnd(parseExpression);
                        if (indexedAccess.argumentExpression.kind === 9 || indexedAccess.argumentExpression.kind === 8) {
                            var literal = indexedAccess.argumentExpression;
                            literal.text = internIdentifier(literal.text);
                        }
                    }
                    parseExpected(20);
                    expression = finishNode(indexedAccess);
                    continue;
                }
                if (token === 11 || token === 12) {
                    var tagExpression = createNode(175, expression.pos);
                    tagExpression.tag = expression;
                    tagExpression.template = token === 11
                        ? parseLiteralNode()
                        : parseTemplateExpression();
                    expression = finishNode(tagExpression);
                    continue;
                }
                return expression;
            }
        }
        function parseCallExpressionRest(expression) {
            while (true) {
                expression = parseMemberExpressionRest(expression);
                if (token === 25) {
                    var typeArguments = tryParse(parseTypeArgumentsInExpression);
                    if (!typeArguments) {
                        return expression;
                    }
                    var callExpr = createNode(173, expression.pos);
                    callExpr.expression = expression;
                    callExpr.typeArguments = typeArguments;
                    callExpr.arguments = parseArgumentList();
                    expression = finishNode(callExpr);
                    continue;
                }
                else if (token === 17) {
                    var callExpr = createNode(173, expression.pos);
                    callExpr.expression = expression;
                    callExpr.arguments = parseArgumentList();
                    expression = finishNode(callExpr);
                    continue;
                }
                return expression;
            }
        }
        function parseArgumentList() {
            parseExpected(17);
            var result = parseDelimitedList(11, parseArgumentExpression);
            parseExpected(18);
            return result;
        }
        function parseTypeArgumentsInExpression() {
            if (!parseOptional(25)) {
                return undefined;
            }
            var typeArguments = parseDelimitedList(18, parseType);
            if (!parseExpected(27)) {
                return undefined;
            }
            return typeArguments && canFollowTypeArgumentsInExpression()
                ? typeArguments
                : undefined;
        }
        function canFollowTypeArgumentsInExpression() {
            switch (token) {
                case 17:
                case 21:
                case 18:
                case 20:
                case 54:
                case 23:
                case 53:
                case 30:
                case 32:
                case 31:
                case 33:
                case 51:
                case 52:
                case 48:
                case 46:
                case 47:
                case 16:
                case 1:
                    return true;
                case 24:
                case 15:
                default:
                    return false;
            }
        }
        function parsePrimaryExpression() {
            switch (token) {
                case 8:
                case 9:
                case 11:
                    return parseLiteralNode();
                case 97:
                case 95:
                case 93:
                case 99:
                case 84:
                    return parseTokenNode();
                case 17:
                    return parseParenthesizedExpression();
                case 19:
                    return parseArrayLiteralExpression();
                case 15:
                    return parseObjectLiteralExpression();
                case 118:
                    if (!lookAhead(nextTokenIsFunctionKeywordOnSameLine)) {
                        break;
                    }
                    return parseFunctionExpression();
                case 73:
                    return parseClassExpression();
                case 87:
                    return parseFunctionExpression();
                case 92:
                    return parseNewExpression();
                case 39:
                case 61:
                    if (reScanSlashToken() === 10) {
                        return parseLiteralNode();
                    }
                    break;
                case 12:
                    return parseTemplateExpression();
            }
            return parseIdentifier(ts.Diagnostics.Expression_expected);
        }
        function parseParenthesizedExpression() {
            var node = createNode(177);
            parseExpected(17);
            node.expression = allowInAnd(parseExpression);
            parseExpected(18);
            return finishNode(node);
        }
        function parseSpreadElement() {
            var node = createNode(190);
            parseExpected(22);
            node.expression = parseAssignmentExpressionOrHigher();
            return finishNode(node);
        }
        function parseArgumentOrArrayLiteralElement() {
            return token === 22 ? parseSpreadElement() :
                token === 24 ? createNode(192) :
                    parseAssignmentExpressionOrHigher();
        }
        function parseArgumentExpression() {
            return doOutsideOfContext(disallowInAndDecoratorContext, parseArgumentOrArrayLiteralElement);
        }
        function parseArrayLiteralExpression() {
            var node = createNode(169);
            parseExpected(19);
            if (scanner.hasPrecedingLineBreak()) {
                node.multiLine = true;
            }
            node.elements = parseDelimitedList(15, parseArgumentOrArrayLiteralElement);
            parseExpected(20);
            return finishNode(node);
        }
        function tryParseAccessorDeclaration(fullStart, decorators, modifiers) {
            if (parseContextualModifier(123)) {
                return addJSDocComment(parseAccessorDeclaration(148, fullStart, decorators, modifiers));
            }
            else if (parseContextualModifier(130)) {
                return parseAccessorDeclaration(149, fullStart, decorators, modifiers);
            }
            return undefined;
        }
        function parseObjectLiteralElement() {
            var fullStart = scanner.getStartPos();
            var decorators = parseDecorators();
            var modifiers = parseModifiers();
            var accessor = tryParseAccessorDeclaration(fullStart, decorators, modifiers);
            if (accessor) {
                return accessor;
            }
            var asteriskToken = parseOptionalToken(37);
            var tokenIsIdentifier = isIdentifier();
            var propertyName = parsePropertyName();
            var questionToken = parseOptionalToken(53);
            if (asteriskToken || token === 17 || token === 25) {
                return parseMethodDeclaration(fullStart, decorators, modifiers, asteriskToken, propertyName, questionToken);
            }
            var isShorthandPropertyAssignment = tokenIsIdentifier && (token === 24 || token === 16 || token === 56);
            if (isShorthandPropertyAssignment) {
                var shorthandDeclaration = createNode(253, fullStart);
                shorthandDeclaration.name = propertyName;
                shorthandDeclaration.questionToken = questionToken;
                var equalsToken = parseOptionalToken(56);
                if (equalsToken) {
                    shorthandDeclaration.equalsToken = equalsToken;
                    shorthandDeclaration.objectAssignmentInitializer = allowInAnd(parseAssignmentExpressionOrHigher);
                }
                return addJSDocComment(finishNode(shorthandDeclaration));
            }
            else {
                var propertyAssignment = createNode(252, fullStart);
                propertyAssignment.modifiers = modifiers;
                propertyAssignment.name = propertyName;
                propertyAssignment.questionToken = questionToken;
                parseExpected(54);
                propertyAssignment.initializer = allowInAnd(parseAssignmentExpressionOrHigher);
                return addJSDocComment(finishNode(propertyAssignment));
            }
        }
        function parseObjectLiteralExpression() {
            var node = createNode(170);
            parseExpected(15);
            if (scanner.hasPrecedingLineBreak()) {
                node.multiLine = true;
            }
            node.properties = parseDelimitedList(12, parseObjectLiteralElement, true);
            parseExpected(16);
            return finishNode(node);
        }
        function parseFunctionExpression() {
            var saveDecoratorContext = inDecoratorContext();
            if (saveDecoratorContext) {
                setDecoratorContext(false);
            }
            var node = createNode(178);
            setModifiers(node, parseModifiers());
            parseExpected(87);
            node.asteriskToken = parseOptionalToken(37);
            var isGenerator = !!node.asteriskToken;
            var isAsync = !!(node.flags & 256);
            node.name =
                isGenerator && isAsync ? doInYieldAndAwaitContext(parseOptionalIdentifier) :
                    isGenerator ? doInYieldContext(parseOptionalIdentifier) :
                        isAsync ? doInAwaitContext(parseOptionalIdentifier) :
                            parseOptionalIdentifier();
            fillSignature(54, isGenerator, isAsync, false, node);
            node.body = parseFunctionBlock(isGenerator, isAsync, false);
            if (saveDecoratorContext) {
                setDecoratorContext(true);
            }
            return addJSDocComment(finishNode(node));
        }
        function parseOptionalIdentifier() {
            return isIdentifier() ? parseIdentifier() : undefined;
        }
        function parseNewExpression() {
            var node = createNode(174);
            parseExpected(92);
            node.expression = parseMemberExpressionOrHigher();
            node.typeArguments = tryParse(parseTypeArgumentsInExpression);
            if (node.typeArguments || token === 17) {
                node.arguments = parseArgumentList();
            }
            return finishNode(node);
        }
        function parseBlock(ignoreMissingOpenBrace, diagnosticMessage) {
            var node = createNode(198);
            if (parseExpected(15, diagnosticMessage) || ignoreMissingOpenBrace) {
                node.statements = parseList(1, parseStatement);
                parseExpected(16);
            }
            else {
                node.statements = createMissingList();
            }
            return finishNode(node);
        }
        function parseFunctionBlock(allowYield, allowAwait, ignoreMissingOpenBrace, diagnosticMessage) {
            var savedYieldContext = inYieldContext();
            setYieldContext(allowYield);
            var savedAwaitContext = inAwaitContext();
            setAwaitContext(allowAwait);
            var saveDecoratorContext = inDecoratorContext();
            if (saveDecoratorContext) {
                setDecoratorContext(false);
            }
            var block = parseBlock(ignoreMissingOpenBrace, diagnosticMessage);
            if (saveDecoratorContext) {
                setDecoratorContext(true);
            }
            setYieldContext(savedYieldContext);
            setAwaitContext(savedAwaitContext);
            return block;
        }
        function parseEmptyStatement() {
            var node = createNode(200);
            parseExpected(23);
            return finishNode(node);
        }
        function parseIfStatement() {
            var node = createNode(202);
            parseExpected(88);
            parseExpected(17);
            node.expression = allowInAnd(parseExpression);
            parseExpected(18);
            node.thenStatement = parseStatement();
            node.elseStatement = parseOptional(80) ? parseStatement() : undefined;
            return finishNode(node);
        }
        function parseDoStatement() {
            var node = createNode(203);
            parseExpected(79);
            node.statement = parseStatement();
            parseExpected(104);
            parseExpected(17);
            node.expression = allowInAnd(parseExpression);
            parseExpected(18);
            parseOptional(23);
            return finishNode(node);
        }
        function parseWhileStatement() {
            var node = createNode(204);
            parseExpected(104);
            parseExpected(17);
            node.expression = allowInAnd(parseExpression);
            parseExpected(18);
            node.statement = parseStatement();
            return finishNode(node);
        }
        function parseForOrForInOrForOfStatement() {
            var pos = getNodePos();
            parseExpected(86);
            parseExpected(17);
            var initializer = undefined;
            if (token !== 23) {
                if (token === 102 || token === 108 || token === 74) {
                    initializer = parseVariableDeclarationList(true);
                }
                else {
                    initializer = disallowInAnd(parseExpression);
                }
            }
            var forOrForInOrForOfStatement;
            if (parseOptional(90)) {
                var forInStatement = createNode(206, pos);
                forInStatement.initializer = initializer;
                forInStatement.expression = allowInAnd(parseExpression);
                parseExpected(18);
                forOrForInOrForOfStatement = forInStatement;
            }
            else if (parseOptional(137)) {
                var forOfStatement = createNode(207, pos);
                forOfStatement.initializer = initializer;
                forOfStatement.expression = allowInAnd(parseAssignmentExpressionOrHigher);
                parseExpected(18);
                forOrForInOrForOfStatement = forOfStatement;
            }
            else {
                var forStatement = createNode(205, pos);
                forStatement.initializer = initializer;
                parseExpected(23);
                if (token !== 23 && token !== 18) {
                    forStatement.condition = allowInAnd(parseExpression);
                }
                parseExpected(23);
                if (token !== 18) {
                    forStatement.incrementor = allowInAnd(parseExpression);
                }
                parseExpected(18);
                forOrForInOrForOfStatement = forStatement;
            }
            forOrForInOrForOfStatement.statement = parseStatement();
            return finishNode(forOrForInOrForOfStatement);
        }
        function parseBreakOrContinueStatement(kind) {
            var node = createNode(kind);
            parseExpected(kind === 209 ? 70 : 75);
            if (!canParseSemicolon()) {
                node.label = parseIdentifier();
            }
            parseSemicolon();
            return finishNode(node);
        }
        function parseReturnStatement() {
            var node = createNode(210);
            parseExpected(94);
            if (!canParseSemicolon()) {
                node.expression = allowInAnd(parseExpression);
            }
            parseSemicolon();
            return finishNode(node);
        }
        function parseWithStatement() {
            var node = createNode(211);
            parseExpected(105);
            parseExpected(17);
            node.expression = allowInAnd(parseExpression);
            parseExpected(18);
            node.statement = parseStatement();
            return finishNode(node);
        }
        function parseCaseClause() {
            var node = createNode(248);
            parseExpected(71);
            node.expression = allowInAnd(parseExpression);
            parseExpected(54);
            node.statements = parseList(3, parseStatement);
            return finishNode(node);
        }
        function parseDefaultClause() {
            var node = createNode(249);
            parseExpected(77);
            parseExpected(54);
            node.statements = parseList(3, parseStatement);
            return finishNode(node);
        }
        function parseCaseOrDefaultClause() {
            return token === 71 ? parseCaseClause() : parseDefaultClause();
        }
        function parseSwitchStatement() {
            var node = createNode(212);
            parseExpected(96);
            parseExpected(17);
            node.expression = allowInAnd(parseExpression);
            parseExpected(18);
            var caseBlock = createNode(226, scanner.getStartPos());
            parseExpected(15);
            caseBlock.clauses = parseList(2, parseCaseOrDefaultClause);
            parseExpected(16);
            node.caseBlock = finishNode(caseBlock);
            return finishNode(node);
        }
        function parseThrowStatement() {
            var node = createNode(214);
            parseExpected(98);
            node.expression = scanner.hasPrecedingLineBreak() ? undefined : allowInAnd(parseExpression);
            parseSemicolon();
            return finishNode(node);
        }
        function parseTryStatement() {
            var node = createNode(215);
            parseExpected(100);
            node.tryBlock = parseBlock(false);
            node.catchClause = token === 72 ? parseCatchClause() : undefined;
            if (!node.catchClause || token === 85) {
                parseExpected(85);
                node.finallyBlock = parseBlock(false);
            }
            return finishNode(node);
        }
        function parseCatchClause() {
            var result = createNode(251);
            parseExpected(72);
            if (parseExpected(17)) {
                result.variableDeclaration = parseVariableDeclaration();
            }
            parseExpected(18);
            result.block = parseBlock(false);
            return finishNode(result);
        }
        function parseDebuggerStatement() {
            var node = createNode(216);
            parseExpected(76);
            parseSemicolon();
            return finishNode(node);
        }
        function parseExpressionOrLabeledStatement() {
            var fullStart = scanner.getStartPos();
            var expression = allowInAnd(parseExpression);
            if (expression.kind === 69 && parseOptional(54)) {
                var labeledStatement = createNode(213, fullStart);
                labeledStatement.label = expression;
                labeledStatement.statement = parseStatement();
                return addJSDocComment(finishNode(labeledStatement));
            }
            else {
                var expressionStatement = createNode(201, fullStart);
                expressionStatement.expression = expression;
                parseSemicolon();
                return addJSDocComment(finishNode(expressionStatement));
            }
        }
        function nextTokenIsIdentifierOrKeywordOnSameLine() {
            nextToken();
            return ts.tokenIsIdentifierOrKeyword(token) && !scanner.hasPrecedingLineBreak();
        }
        function nextTokenIsFunctionKeywordOnSameLine() {
            nextToken();
            return token === 87 && !scanner.hasPrecedingLineBreak();
        }
        function nextTokenIsIdentifierOrKeywordOrNumberOnSameLine() {
            nextToken();
            return (ts.tokenIsIdentifierOrKeyword(token) || token === 8) && !scanner.hasPrecedingLineBreak();
        }
        function isDeclaration() {
            while (true) {
                switch (token) {
                    case 102:
                    case 108:
                    case 74:
                    case 87:
                    case 73:
                    case 81:
                        return true;
                    case 107:
                    case 133:
                        return nextTokenIsIdentifierOnSameLine();
                    case 125:
                    case 126:
                        return nextTokenIsIdentifierOrStringLiteralOnSameLine();
                    case 115:
                    case 118:
                    case 122:
                    case 110:
                    case 111:
                    case 112:
                    case 127:
                        nextToken();
                        if (scanner.hasPrecedingLineBreak()) {
                            return false;
                        }
                        continue;
                    case 136:
                        nextToken();
                        return token === 15 || token === 69 || token === 82;
                    case 89:
                        nextToken();
                        return token === 9 || token === 37 ||
                            token === 15 || ts.tokenIsIdentifierOrKeyword(token);
                    case 82:
                        nextToken();
                        if (token === 56 || token === 37 ||
                            token === 15 || token === 77 ||
                            token === 116) {
                            return true;
                        }
                        continue;
                    case 113:
                        nextToken();
                        continue;
                    default:
                        return false;
                }
            }
        }
        function isStartOfDeclaration() {
            return lookAhead(isDeclaration);
        }
        function isStartOfStatement() {
            switch (token) {
                case 55:
                case 23:
                case 15:
                case 102:
                case 108:
                case 87:
                case 73:
                case 81:
                case 88:
                case 79:
                case 104:
                case 86:
                case 75:
                case 70:
                case 94:
                case 105:
                case 96:
                case 98:
                case 100:
                case 76:
                case 72:
                case 85:
                    return true;
                case 74:
                case 82:
                case 89:
                    return isStartOfDeclaration();
                case 118:
                case 122:
                case 107:
                case 125:
                case 126:
                case 133:
                case 136:
                    return true;
                case 112:
                case 110:
                case 111:
                case 113:
                case 127:
                    return isStartOfDeclaration() || !lookAhead(nextTokenIsIdentifierOrKeywordOnSameLine);
                default:
                    return isStartOfExpression();
            }
        }
        function nextTokenIsIdentifierOrStartOfDestructuring() {
            nextToken();
            return isIdentifier() || token === 15 || token === 19;
        }
        function isLetDeclaration() {
            return lookAhead(nextTokenIsIdentifierOrStartOfDestructuring);
        }
        function parseStatement() {
            switch (token) {
                case 23:
                    return parseEmptyStatement();
                case 15:
                    return parseBlock(false);
                case 102:
                    return parseVariableStatement(scanner.getStartPos(), undefined, undefined);
                case 108:
                    if (isLetDeclaration()) {
                        return parseVariableStatement(scanner.getStartPos(), undefined, undefined);
                    }
                    break;
                case 87:
                    return parseFunctionDeclaration(scanner.getStartPos(), undefined, undefined);
                case 73:
                    return parseClassDeclaration(scanner.getStartPos(), undefined, undefined);
                case 88:
                    return parseIfStatement();
                case 79:
                    return parseDoStatement();
                case 104:
                    return parseWhileStatement();
                case 86:
                    return parseForOrForInOrForOfStatement();
                case 75:
                    return parseBreakOrContinueStatement(208);
                case 70:
                    return parseBreakOrContinueStatement(209);
                case 94:
                    return parseReturnStatement();
                case 105:
                    return parseWithStatement();
                case 96:
                    return parseSwitchStatement();
                case 98:
                    return parseThrowStatement();
                case 100:
                case 72:
                case 85:
                    return parseTryStatement();
                case 76:
                    return parseDebuggerStatement();
                case 55:
                    return parseDeclaration();
                case 118:
                case 107:
                case 133:
                case 125:
                case 126:
                case 122:
                case 74:
                case 81:
                case 82:
                case 89:
                case 110:
                case 111:
                case 112:
                case 115:
                case 113:
                case 127:
                case 136:
                    if (isStartOfDeclaration()) {
                        return parseDeclaration();
                    }
                    break;
            }
            return parseExpressionOrLabeledStatement();
        }
        function parseDeclaration() {
            var fullStart = getNodePos();
            var decorators = parseDecorators();
            var modifiers = parseModifiers();
            switch (token) {
                case 102:
                case 108:
                case 74:
                    return parseVariableStatement(fullStart, decorators, modifiers);
                case 87:
                    return parseFunctionDeclaration(fullStart, decorators, modifiers);
                case 73:
                    return parseClassDeclaration(fullStart, decorators, modifiers);
                case 107:
                    return parseInterfaceDeclaration(fullStart, decorators, modifiers);
                case 133:
                    return parseTypeAliasDeclaration(fullStart, decorators, modifiers);
                case 81:
                    return parseEnumDeclaration(fullStart, decorators, modifiers);
                case 136:
                case 125:
                case 126:
                    return parseModuleDeclaration(fullStart, decorators, modifiers);
                case 89:
                    return parseImportDeclarationOrImportEqualsDeclaration(fullStart, decorators, modifiers);
                case 82:
                    nextToken();
                    switch (token) {
                        case 77:
                        case 56:
                            return parseExportAssignment(fullStart, decorators, modifiers);
                        case 116:
                            return parseGlobalModuleExportDeclaration(fullStart, decorators, modifiers);
                        default:
                            return parseExportDeclaration(fullStart, decorators, modifiers);
                    }
                default:
                    if (decorators || modifiers) {
                        var node = createMissingNode(238, true, ts.Diagnostics.Declaration_expected);
                        node.pos = fullStart;
                        node.decorators = decorators;
                        setModifiers(node, modifiers);
                        return finishNode(node);
                    }
            }
        }
        function nextTokenIsIdentifierOrStringLiteralOnSameLine() {
            nextToken();
            return !scanner.hasPrecedingLineBreak() && (isIdentifier() || token === 9);
        }
        function parseFunctionBlockOrSemicolon(isGenerator, isAsync, diagnosticMessage) {
            if (token !== 15 && canParseSemicolon()) {
                parseSemicolon();
                return;
            }
            return parseFunctionBlock(isGenerator, isAsync, false, diagnosticMessage);
        }
        function parseArrayBindingElement() {
            if (token === 24) {
                return createNode(192);
            }
            var node = createNode(168);
            node.dotDotDotToken = parseOptionalToken(22);
            node.name = parseIdentifierOrPattern();
            node.initializer = parseBindingElementInitializer(false);
            return finishNode(node);
        }
        function parseObjectBindingElement() {
            var node = createNode(168);
            var tokenIsIdentifier = isIdentifier();
            var propertyName = parsePropertyName();
            if (tokenIsIdentifier && token !== 54) {
                node.name = propertyName;
            }
            else {
                parseExpected(54);
                node.propertyName = propertyName;
                node.name = parseIdentifierOrPattern();
            }
            node.initializer = parseBindingElementInitializer(false);
            return finishNode(node);
        }
        function parseObjectBindingPattern() {
            var node = createNode(166);
            parseExpected(15);
            node.elements = parseDelimitedList(9, parseObjectBindingElement);
            parseExpected(16);
            return finishNode(node);
        }
        function parseArrayBindingPattern() {
            var node = createNode(167);
            parseExpected(19);
            node.elements = parseDelimitedList(10, parseArrayBindingElement);
            parseExpected(20);
            return finishNode(node);
        }
        function isIdentifierOrPattern() {
            return token === 15 || token === 19 || isIdentifier();
        }
        function parseIdentifierOrPattern() {
            if (token === 19) {
                return parseArrayBindingPattern();
            }
            if (token === 15) {
                return parseObjectBindingPattern();
            }
            return parseIdentifier();
        }
        function parseVariableDeclaration() {
            var node = createNode(217);
            node.name = parseIdentifierOrPattern();
            node.type = parseTypeAnnotation();
            if (!isInOrOfKeyword(token)) {
                node.initializer = parseInitializer(false);
            }
            return finishNode(node);
        }
        function parseVariableDeclarationList(inForStatementInitializer) {
            var node = createNode(218);
            switch (token) {
                case 102:
                    break;
                case 108:
                    node.flags |= 1024;
                    break;
                case 74:
                    node.flags |= 2048;
                    break;
                default:
                    ts.Debug.fail();
            }
            nextToken();
            if (token === 137 && lookAhead(canFollowContextualOfKeyword)) {
                node.declarations = createMissingList();
            }
            else {
                var savedDisallowIn = inDisallowInContext();
                setDisallowInContext(inForStatementInitializer);
                node.declarations = parseDelimitedList(8, parseVariableDeclaration);
                setDisallowInContext(savedDisallowIn);
            }
            return finishNode(node);
        }
        function canFollowContextualOfKeyword() {
            return nextTokenIsIdentifier() && nextToken() === 18;
        }
        function parseVariableStatement(fullStart, decorators, modifiers) {
            var node = createNode(199, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            node.declarationList = parseVariableDeclarationList(false);
            parseSemicolon();
            return addJSDocComment(finishNode(node));
        }
        function parseFunctionDeclaration(fullStart, decorators, modifiers) {
            var node = createNode(219, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            parseExpected(87);
            node.asteriskToken = parseOptionalToken(37);
            node.name = node.flags & 512 ? parseOptionalIdentifier() : parseIdentifier();
            var isGenerator = !!node.asteriskToken;
            var isAsync = !!(node.flags & 256);
            fillSignature(54, isGenerator, isAsync, false, node);
            node.body = parseFunctionBlockOrSemicolon(isGenerator, isAsync, ts.Diagnostics.or_expected);
            return addJSDocComment(finishNode(node));
        }
        function parseConstructorDeclaration(pos, decorators, modifiers) {
            var node = createNode(147, pos);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            parseExpected(121);
            fillSignature(54, false, false, false, node);
            node.body = parseFunctionBlockOrSemicolon(false, false, ts.Diagnostics.or_expected);
            return addJSDocComment(finishNode(node));
        }
        function parseMethodDeclaration(fullStart, decorators, modifiers, asteriskToken, name, questionToken, diagnosticMessage) {
            var method = createNode(146, fullStart);
            method.decorators = decorators;
            setModifiers(method, modifiers);
            method.asteriskToken = asteriskToken;
            method.name = name;
            method.questionToken = questionToken;
            var isGenerator = !!asteriskToken;
            var isAsync = !!(method.flags & 256);
            fillSignature(54, isGenerator, isAsync, false, method);
            method.body = parseFunctionBlockOrSemicolon(isGenerator, isAsync, diagnosticMessage);
            return addJSDocComment(finishNode(method));
        }
        function parsePropertyDeclaration(fullStart, decorators, modifiers, name, questionToken) {
            var property = createNode(144, fullStart);
            property.decorators = decorators;
            setModifiers(property, modifiers);
            property.name = name;
            property.questionToken = questionToken;
            property.type = parseTypeAnnotation();
            property.initializer = modifiers && modifiers.flags & 32
                ? allowInAnd(parseNonParameterInitializer)
                : doOutsideOfContext(8388608 | 4194304, parseNonParameterInitializer);
            parseSemicolon();
            return finishNode(property);
        }
        function parsePropertyOrMethodDeclaration(fullStart, decorators, modifiers) {
            var asteriskToken = parseOptionalToken(37);
            var name = parsePropertyName();
            var questionToken = parseOptionalToken(53);
            if (asteriskToken || token === 17 || token === 25) {
                return parseMethodDeclaration(fullStart, decorators, modifiers, asteriskToken, name, questionToken, ts.Diagnostics.or_expected);
            }
            else {
                return parsePropertyDeclaration(fullStart, decorators, modifiers, name, questionToken);
            }
        }
        function parseNonParameterInitializer() {
            return parseInitializer(false);
        }
        function parseAccessorDeclaration(kind, fullStart, decorators, modifiers) {
            var node = createNode(kind, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            node.name = parsePropertyName();
            fillSignature(54, false, false, false, node);
            node.body = parseFunctionBlockOrSemicolon(false, false);
            return finishNode(node);
        }
        function isClassMemberModifier(idToken) {
            switch (idToken) {
                case 112:
                case 110:
                case 111:
                case 113:
                case 127:
                    return true;
                default:
                    return false;
            }
        }
        function isClassMemberStart() {
            var idToken;
            if (token === 55) {
                return true;
            }
            while (ts.isModifierKind(token)) {
                idToken = token;
                if (isClassMemberModifier(idToken)) {
                    return true;
                }
                nextToken();
            }
            if (token === 37) {
                return true;
            }
            if (isLiteralPropertyName()) {
                idToken = token;
                nextToken();
            }
            if (token === 19) {
                return true;
            }
            if (idToken !== undefined) {
                if (!ts.isKeyword(idToken) || idToken === 130 || idToken === 123) {
                    return true;
                }
                switch (token) {
                    case 17:
                    case 25:
                    case 54:
                    case 56:
                    case 53:
                        return true;
                    default:
                        return canParseSemicolon();
                }
            }
            return false;
        }
        function parseDecorators() {
            var decorators;
            while (true) {
                var decoratorStart = getNodePos();
                if (!parseOptional(55)) {
                    break;
                }
                if (!decorators) {
                    decorators = [];
                    decorators.pos = decoratorStart;
                }
                var decorator = createNode(142, decoratorStart);
                decorator.expression = doInDecoratorContext(parseLeftHandSideExpressionOrHigher);
                decorators.push(finishNode(decorator));
            }
            if (decorators) {
                decorators.end = getNodeEnd();
            }
            return decorators;
        }
        function parseModifiers(permitInvalidConstAsModifier) {
            var flags = 0;
            var modifiers;
            while (true) {
                var modifierStart = scanner.getStartPos();
                var modifierKind = token;
                if (token === 74 && permitInvalidConstAsModifier) {
                    if (!tryParse(nextTokenIsOnSameLineAndCanFollowModifier)) {
                        break;
                    }
                }
                else {
                    if (!parseAnyContextualModifier()) {
                        break;
                    }
                }
                if (!modifiers) {
                    modifiers = [];
                    modifiers.pos = modifierStart;
                }
                flags |= ts.modifierToFlag(modifierKind);
                modifiers.push(finishNode(createNode(modifierKind, modifierStart)));
            }
            if (modifiers) {
                modifiers.flags = flags;
                modifiers.end = scanner.getStartPos();
            }
            return modifiers;
        }
        function parseModifiersForArrowFunction() {
            var flags = 0;
            var modifiers;
            if (token === 118) {
                var modifierStart = scanner.getStartPos();
                var modifierKind = token;
                nextToken();
                modifiers = [];
                modifiers.pos = modifierStart;
                flags |= ts.modifierToFlag(modifierKind);
                modifiers.push(finishNode(createNode(modifierKind, modifierStart)));
                modifiers.flags = flags;
                modifiers.end = scanner.getStartPos();
            }
            return modifiers;
        }
        function parseClassElement() {
            if (token === 23) {
                var result = createNode(197);
                nextToken();
                return finishNode(result);
            }
            var fullStart = getNodePos();
            var decorators = parseDecorators();
            var modifiers = parseModifiers(true);
            var accessor = tryParseAccessorDeclaration(fullStart, decorators, modifiers);
            if (accessor) {
                return accessor;
            }
            if (token === 121) {
                return parseConstructorDeclaration(fullStart, decorators, modifiers);
            }
            if (isIndexSignature()) {
                return parseIndexSignatureDeclaration(fullStart, decorators, modifiers);
            }
            if (ts.tokenIsIdentifierOrKeyword(token) ||
                token === 9 ||
                token === 8 ||
                token === 37 ||
                token === 19) {
                return parsePropertyOrMethodDeclaration(fullStart, decorators, modifiers);
            }
            if (decorators || modifiers) {
                var name_7 = createMissingNode(69, true, ts.Diagnostics.Declaration_expected);
                return parsePropertyDeclaration(fullStart, decorators, modifiers, name_7, undefined);
            }
            ts.Debug.fail("Should not have attempted to parse class member declaration.");
        }
        function parseClassExpression() {
            return parseClassDeclarationOrExpression(scanner.getStartPos(), undefined, undefined, 191);
        }
        function parseClassDeclaration(fullStart, decorators, modifiers) {
            return parseClassDeclarationOrExpression(fullStart, decorators, modifiers, 220);
        }
        function parseClassDeclarationOrExpression(fullStart, decorators, modifiers, kind) {
            var node = createNode(kind, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            parseExpected(73);
            node.name = parseNameOfClassDeclarationOrExpression();
            node.typeParameters = parseTypeParameters();
            node.heritageClauses = parseHeritageClauses(true);
            if (parseExpected(15)) {
                node.members = parseClassMembers();
                parseExpected(16);
            }
            else {
                node.members = createMissingList();
            }
            return finishNode(node);
        }
        function parseNameOfClassDeclarationOrExpression() {
            return isIdentifier() && !isImplementsClause()
                ? parseIdentifier()
                : undefined;
        }
        function isImplementsClause() {
            return token === 106 && lookAhead(nextTokenIsIdentifierOrKeyword);
        }
        function parseHeritageClauses(isClassHeritageClause) {
            if (isHeritageClause()) {
                return parseList(20, parseHeritageClause);
            }
            return undefined;
        }
        function parseHeritageClause() {
            if (token === 83 || token === 106) {
                var node = createNode(250);
                node.token = token;
                nextToken();
                node.types = parseDelimitedList(7, parseExpressionWithTypeArguments);
                return finishNode(node);
            }
            return undefined;
        }
        function parseExpressionWithTypeArguments() {
            var node = createNode(193);
            node.expression = parseLeftHandSideExpressionOrHigher();
            if (token === 25) {
                node.typeArguments = parseBracketedList(18, parseType, 25, 27);
            }
            return finishNode(node);
        }
        function isHeritageClause() {
            return token === 83 || token === 106;
        }
        function parseClassMembers() {
            return parseList(5, parseClassElement);
        }
        function parseInterfaceDeclaration(fullStart, decorators, modifiers) {
            var node = createNode(221, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            parseExpected(107);
            node.name = parseIdentifier();
            node.typeParameters = parseTypeParameters();
            node.heritageClauses = parseHeritageClauses(false);
            node.members = parseObjectTypeMembers();
            return finishNode(node);
        }
        function parseTypeAliasDeclaration(fullStart, decorators, modifiers) {
            var node = createNode(222, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            parseExpected(133);
            node.name = parseIdentifier();
            node.typeParameters = parseTypeParameters();
            parseExpected(56);
            node.type = parseType();
            parseSemicolon();
            return finishNode(node);
        }
        function parseEnumMember() {
            var node = createNode(254, scanner.getStartPos());
            node.name = parsePropertyName();
            node.initializer = allowInAnd(parseNonParameterInitializer);
            return finishNode(node);
        }
        function parseEnumDeclaration(fullStart, decorators, modifiers) {
            var node = createNode(223, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            parseExpected(81);
            node.name = parseIdentifier();
            if (parseExpected(15)) {
                node.members = parseDelimitedList(6, parseEnumMember);
                parseExpected(16);
            }
            else {
                node.members = createMissingList();
            }
            return finishNode(node);
        }
        function parseModuleBlock() {
            var node = createNode(225, scanner.getStartPos());
            if (parseExpected(15)) {
                node.statements = parseList(1, parseStatement);
                parseExpected(16);
            }
            else {
                node.statements = createMissingList();
            }
            return finishNode(node);
        }
        function parseModuleOrNamespaceDeclaration(fullStart, decorators, modifiers, flags) {
            var node = createNode(224, fullStart);
            var namespaceFlag = flags & 4096;
            node.decorators = decorators;
            setModifiers(node, modifiers);
            node.flags |= flags;
            node.name = parseIdentifier();
            node.body = parseOptional(21)
                ? parseModuleOrNamespaceDeclaration(getNodePos(), undefined, undefined, 1 | namespaceFlag)
                : parseModuleBlock();
            return finishNode(node);
        }
        function parseAmbientExternalModuleDeclaration(fullStart, decorators, modifiers) {
            var node = createNode(224, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            if (token === 136) {
                node.name = parseIdentifier();
                node.flags |= 131072;
            }
            else {
                node.name = parseLiteralNode(true);
            }
            node.body = parseModuleBlock();
            return finishNode(node);
        }
        function parseModuleDeclaration(fullStart, decorators, modifiers) {
            var flags = modifiers ? modifiers.flags : 0;
            if (token === 136) {
                return parseAmbientExternalModuleDeclaration(fullStart, decorators, modifiers);
            }
            else if (parseOptional(126)) {
                flags |= 4096;
            }
            else {
                parseExpected(125);
                if (token === 9) {
                    return parseAmbientExternalModuleDeclaration(fullStart, decorators, modifiers);
                }
            }
            return parseModuleOrNamespaceDeclaration(fullStart, decorators, modifiers, flags);
        }
        function isExternalModuleReference() {
            return token === 128 &&
                lookAhead(nextTokenIsOpenParen);
        }
        function nextTokenIsOpenParen() {
            return nextToken() === 17;
        }
        function nextTokenIsSlash() {
            return nextToken() === 39;
        }
        function parseGlobalModuleExportDeclaration(fullStart, decorators, modifiers) {
            var exportDeclaration = createNode(227, fullStart);
            exportDeclaration.decorators = decorators;
            exportDeclaration.modifiers = modifiers;
            parseExpected(116);
            parseExpected(126);
            exportDeclaration.name = parseIdentifier();
            parseExpected(23);
            return finishNode(exportDeclaration);
        }
        function parseImportDeclarationOrImportEqualsDeclaration(fullStart, decorators, modifiers) {
            parseExpected(89);
            var afterImportPos = scanner.getStartPos();
            var identifier;
            if (isIdentifier()) {
                identifier = parseIdentifier();
                if (token !== 24 && token !== 135) {
                    var importEqualsDeclaration = createNode(228, fullStart);
                    importEqualsDeclaration.decorators = decorators;
                    setModifiers(importEqualsDeclaration, modifiers);
                    importEqualsDeclaration.name = identifier;
                    parseExpected(56);
                    importEqualsDeclaration.moduleReference = parseModuleReference();
                    parseSemicolon();
                    return finishNode(importEqualsDeclaration);
                }
            }
            var importDeclaration = createNode(229, fullStart);
            importDeclaration.decorators = decorators;
            setModifiers(importDeclaration, modifiers);
            if (identifier ||
                token === 37 ||
                token === 15) {
                importDeclaration.importClause = parseImportClause(identifier, afterImportPos);
                parseExpected(135);
            }
            importDeclaration.moduleSpecifier = parseModuleSpecifier();
            parseSemicolon();
            return finishNode(importDeclaration);
        }
        function parseImportClause(identifier, fullStart) {
            var importClause = createNode(230, fullStart);
            if (identifier) {
                importClause.name = identifier;
            }
            if (!importClause.name ||
                parseOptional(24)) {
                importClause.namedBindings = token === 37 ? parseNamespaceImport() : parseNamedImportsOrExports(232);
            }
            return finishNode(importClause);
        }
        function parseModuleReference() {
            return isExternalModuleReference()
                ? parseExternalModuleReference()
                : parseEntityName(false);
        }
        function parseExternalModuleReference() {
            var node = createNode(239);
            parseExpected(128);
            parseExpected(17);
            node.expression = parseModuleSpecifier();
            parseExpected(18);
            return finishNode(node);
        }
        function parseModuleSpecifier() {
            if (token === 9) {
                var result = parseLiteralNode();
                internIdentifier(result.text);
                return result;
            }
            else {
                return parseExpression();
            }
        }
        function parseNamespaceImport() {
            var namespaceImport = createNode(231);
            parseExpected(37);
            parseExpected(116);
            namespaceImport.name = parseIdentifier();
            return finishNode(namespaceImport);
        }
        function parseNamedImportsOrExports(kind) {
            var node = createNode(kind);
            node.elements = parseBracketedList(21, kind === 232 ? parseImportSpecifier : parseExportSpecifier, 15, 16);
            return finishNode(node);
        }
        function parseExportSpecifier() {
            return parseImportOrExportSpecifier(237);
        }
        function parseImportSpecifier() {
            return parseImportOrExportSpecifier(233);
        }
        function parseImportOrExportSpecifier(kind) {
            var node = createNode(kind);
            var checkIdentifierIsKeyword = ts.isKeyword(token) && !isIdentifier();
            var checkIdentifierStart = scanner.getTokenPos();
            var checkIdentifierEnd = scanner.getTextPos();
            var identifierName = parseIdentifierName();
            if (token === 116) {
                node.propertyName = identifierName;
                parseExpected(116);
                checkIdentifierIsKeyword = ts.isKeyword(token) && !isIdentifier();
                checkIdentifierStart = scanner.getTokenPos();
                checkIdentifierEnd = scanner.getTextPos();
                node.name = parseIdentifierName();
            }
            else {
                node.name = identifierName;
            }
            if (kind === 233 && checkIdentifierIsKeyword) {
                parseErrorAtPosition(checkIdentifierStart, checkIdentifierEnd - checkIdentifierStart, ts.Diagnostics.Identifier_expected);
            }
            return finishNode(node);
        }
        function parseExportDeclaration(fullStart, decorators, modifiers) {
            var node = createNode(235, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            if (parseOptional(37)) {
                parseExpected(135);
                node.moduleSpecifier = parseModuleSpecifier();
            }
            else {
                node.exportClause = parseNamedImportsOrExports(236);
                if (token === 135 || (token === 9 && !scanner.hasPrecedingLineBreak())) {
                    parseExpected(135);
                    node.moduleSpecifier = parseModuleSpecifier();
                }
            }
            parseSemicolon();
            return finishNode(node);
        }
        function parseExportAssignment(fullStart, decorators, modifiers) {
            var node = createNode(234, fullStart);
            node.decorators = decorators;
            setModifiers(node, modifiers);
            if (parseOptional(56)) {
                node.isExportEquals = true;
            }
            else {
                parseExpected(77);
            }
            node.expression = parseAssignmentExpressionOrHigher();
            parseSemicolon();
            return finishNode(node);
        }
        function processReferenceComments(sourceFile) {
            var triviaScanner = ts.createScanner(sourceFile.languageVersion, false, 0, sourceText);
            var referencedFiles = [];
            var typeReferenceDirectives = [];
            var amdDependencies = [];
            var amdModuleName;
            while (true) {
                var kind = triviaScanner.scan();
                if (kind !== 2) {
                    if (ts.isTrivia(kind)) {
                        continue;
                    }
                    else {
                        break;
                    }
                }
                var range = { pos: triviaScanner.getTokenPos(), end: triviaScanner.getTextPos(), kind: triviaScanner.getToken() };
                var comment = sourceText.substring(range.pos, range.end);
                var referencePathMatchResult = ts.getFileReferenceFromReferencePath(comment, range);
                if (referencePathMatchResult) {
                    var fileReference = referencePathMatchResult.fileReference;
                    sourceFile.hasNoDefaultLib = referencePathMatchResult.isNoDefaultLib;
                    var diagnosticMessage = referencePathMatchResult.diagnosticMessage;
                    if (fileReference) {
                        if (referencePathMatchResult.isTypeReferenceDirective) {
                            typeReferenceDirectives.push(fileReference);
                        }
                        else {
                            referencedFiles.push(fileReference);
                        }
                    }
                    if (diagnosticMessage) {
                        parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, range.pos, range.end - range.pos, diagnosticMessage));
                    }
                }
                else {
                    var amdModuleNameRegEx = /^\/\/\/\s*<amd-module\s+name\s*=\s*('|")(.+?)\1/gim;
                    var amdModuleNameMatchResult = amdModuleNameRegEx.exec(comment);
                    if (amdModuleNameMatchResult) {
                        if (amdModuleName) {
                            parseDiagnostics.push(ts.createFileDiagnostic(sourceFile, range.pos, range.end - range.pos, ts.Diagnostics.An_AMD_module_cannot_have_multiple_name_assignments));
                        }
                        amdModuleName = amdModuleNameMatchResult[2];
                    }
                    var amdDependencyRegEx = /^\/\/\/\s*<amd-dependency\s/gim;
                    var pathRegex = /\spath\s*=\s*('|")(.+?)\1/gim;
                    var nameRegex = /\sname\s*=\s*('|")(.+?)\1/gim;
                    var amdDependencyMatchResult = amdDependencyRegEx.exec(comment);
                    if (amdDependencyMatchResult) {
                        var pathMatchResult = pathRegex.exec(comment);
                        var nameMatchResult = nameRegex.exec(comment);
                        if (pathMatchResult) {
                            var amdDependency = { path: pathMatchResult[2], name: nameMatchResult ? nameMatchResult[2] : undefined };
                            amdDependencies.push(amdDependency);
                        }
                    }
                }
            }
            sourceFile.referencedFiles = referencedFiles;
            sourceFile.typeReferenceDirectives = typeReferenceDirectives;
            sourceFile.amdDependencies = amdDependencies;
            sourceFile.moduleName = amdModuleName;
        }
        function setExternalModuleIndicator(sourceFile) {
            sourceFile.externalModuleIndicator = ts.forEach(sourceFile.statements, function (node) {
                return node.flags & 1
                    || node.kind === 228 && node.moduleReference.kind === 239
                    || node.kind === 229
                    || node.kind === 234
                    || node.kind === 235
                    ? node
                    : undefined;
            });
        }
        var JSDocParser;
        (function (JSDocParser) {
            function isJSDocType() {
                switch (token) {
                    case 37:
                    case 53:
                    case 17:
                    case 19:
                    case 49:
                    case 15:
                    case 87:
                    case 22:
                    case 92:
                    case 97:
                        return true;
                }
                return ts.tokenIsIdentifierOrKeyword(token);
            }
            JSDocParser.isJSDocType = isJSDocType;
            function parseJSDocTypeExpressionForTests(content, start, length) {
                initializeState("file.js", content, 2, undefined, 1);
                scanner.setText(content, start, length);
                token = scanner.scan();
                var jsDocTypeExpression = parseJSDocTypeExpression();
                var diagnostics = parseDiagnostics;
                clearState();
                return jsDocTypeExpression ? { jsDocTypeExpression: jsDocTypeExpression, diagnostics: diagnostics } : undefined;
            }
            JSDocParser.parseJSDocTypeExpressionForTests = parseJSDocTypeExpressionForTests;
            function parseJSDocTypeExpression() {
                var result = createNode(256, scanner.getTokenPos());
                parseExpected(15);
                result.type = parseJSDocTopLevelType();
                parseExpected(16);
                fixupParentReferences(result);
                return finishNode(result);
            }
            JSDocParser.parseJSDocTypeExpression = parseJSDocTypeExpression;
            function parseJSDocTopLevelType() {
                var type = parseJSDocType();
                if (token === 47) {
                    var unionType = createNode(260, type.pos);
                    unionType.types = parseJSDocTypeList(type);
                    type = finishNode(unionType);
                }
                if (token === 56) {
                    var optionalType = createNode(267, type.pos);
                    nextToken();
                    optionalType.type = type;
                    type = finishNode(optionalType);
                }
                return type;
            }
            function parseJSDocType() {
                var type = parseBasicTypeExpression();
                while (true) {
                    if (token === 19) {
                        var arrayType = createNode(259, type.pos);
                        arrayType.elementType = type;
                        nextToken();
                        parseExpected(20);
                        type = finishNode(arrayType);
                    }
                    else if (token === 53) {
                        var nullableType = createNode(262, type.pos);
                        nullableType.type = type;
                        nextToken();
                        type = finishNode(nullableType);
                    }
                    else if (token === 49) {
                        var nonNullableType = createNode(263, type.pos);
                        nonNullableType.type = type;
                        nextToken();
                        type = finishNode(nonNullableType);
                    }
                    else {
                        break;
                    }
                }
                return type;
            }
            function parseBasicTypeExpression() {
                switch (token) {
                    case 37:
                        return parseJSDocAllType();
                    case 53:
                        return parseJSDocUnknownOrNullableType();
                    case 17:
                        return parseJSDocUnionType();
                    case 19:
                        return parseJSDocTupleType();
                    case 49:
                        return parseJSDocNonNullableType();
                    case 15:
                        return parseJSDocRecordType();
                    case 87:
                        return parseJSDocFunctionType();
                    case 22:
                        return parseJSDocVariadicType();
                    case 92:
                        return parseJSDocConstructorType();
                    case 97:
                        return parseJSDocThisType();
                    case 117:
                    case 131:
                    case 129:
                    case 120:
                    case 132:
                    case 103:
                        return parseTokenNode();
                }
                return parseJSDocTypeReference();
            }
            function parseJSDocThisType() {
                var result = createNode(271);
                nextToken();
                parseExpected(54);
                result.type = parseJSDocType();
                return finishNode(result);
            }
            function parseJSDocConstructorType() {
                var result = createNode(270);
                nextToken();
                parseExpected(54);
                result.type = parseJSDocType();
                return finishNode(result);
            }
            function parseJSDocVariadicType() {
                var result = createNode(269);
                nextToken();
                result.type = parseJSDocType();
                return finishNode(result);
            }
            function parseJSDocFunctionType() {
                var result = createNode(268);
                nextToken();
                parseExpected(17);
                result.parameters = parseDelimitedList(22, parseJSDocParameter);
                checkForTrailingComma(result.parameters);
                parseExpected(18);
                if (token === 54) {
                    nextToken();
                    result.type = parseJSDocType();
                }
                return finishNode(result);
            }
            function parseJSDocParameter() {
                var parameter = createNode(141);
                parameter.type = parseJSDocType();
                if (parseOptional(56)) {
                    parameter.questionToken = createNode(56);
                }
                return finishNode(parameter);
            }
            function parseJSDocTypeReference() {
                var result = createNode(266);
                result.name = parseSimplePropertyName();
                if (token === 25) {
                    result.typeArguments = parseTypeArguments();
                }
                else {
                    while (parseOptional(21)) {
                        if (token === 25) {
                            result.typeArguments = parseTypeArguments();
                            break;
                        }
                        else {
                            result.name = parseQualifiedName(result.name);
                        }
                    }
                }
                return finishNode(result);
            }
            function parseTypeArguments() {
                nextToken();
                var typeArguments = parseDelimitedList(23, parseJSDocType);
                checkForTrailingComma(typeArguments);
                checkForEmptyTypeArgumentList(typeArguments);
                parseExpected(27);
                return typeArguments;
            }
            function checkForEmptyTypeArgumentList(typeArguments) {
                if (parseDiagnostics.length === 0 && typeArguments && typeArguments.length === 0) {
                    var start = typeArguments.pos - "<".length;
                    var end = ts.skipTrivia(sourceText, typeArguments.end) + ">".length;
                    return parseErrorAtPosition(start, end - start, ts.Diagnostics.Type_argument_list_cannot_be_empty);
                }
            }
            function parseQualifiedName(left) {
                var result = createNode(138, left.pos);
                result.left = left;
                result.right = parseIdentifierName();
                return finishNode(result);
            }
            function parseJSDocRecordType() {
                var result = createNode(264);
                nextToken();
                result.members = parseDelimitedList(24, parseJSDocRecordMember);
                checkForTrailingComma(result.members);
                parseExpected(16);
                return finishNode(result);
            }
            function parseJSDocRecordMember() {
                var result = createNode(265);
                result.name = parseSimplePropertyName();
                if (token === 54) {
                    nextToken();
                    result.type = parseJSDocType();
                }
                return finishNode(result);
            }
            function parseJSDocNonNullableType() {
                var result = createNode(263);
                nextToken();
                result.type = parseJSDocType();
                return finishNode(result);
            }
            function parseJSDocTupleType() {
                var result = createNode(261);
                nextToken();
                result.types = parseDelimitedList(25, parseJSDocType);
                checkForTrailingComma(result.types);
                parseExpected(20);
                return finishNode(result);
            }
            function checkForTrailingComma(list) {
                if (parseDiagnostics.length === 0 && list.hasTrailingComma) {
                    var start = list.end - ",".length;
                    parseErrorAtPosition(start, ",".length, ts.Diagnostics.Trailing_comma_not_allowed);
                }
            }
            function parseJSDocUnionType() {
                var result = createNode(260);
                nextToken();
                result.types = parseJSDocTypeList(parseJSDocType());
                parseExpected(18);
                return finishNode(result);
            }
            function parseJSDocTypeList(firstType) {
                ts.Debug.assert(!!firstType);
                var types = [];
                types.pos = firstType.pos;
                types.push(firstType);
                while (parseOptional(47)) {
                    types.push(parseJSDocType());
                }
                types.end = scanner.getStartPos();
                return types;
            }
            function parseJSDocAllType() {
                var result = createNode(257);
                nextToken();
                return finishNode(result);
            }
            function parseJSDocUnknownOrNullableType() {
                var pos = scanner.getStartPos();
                nextToken();
                if (token === 24 ||
                    token === 16 ||
                    token === 18 ||
                    token === 27 ||
                    token === 56 ||
                    token === 47) {
                    var result = createNode(258, pos);
                    return finishNode(result);
                }
                else {
                    var result = createNode(262, pos);
                    result.type = parseJSDocType();
                    return finishNode(result);
                }
            }
            function parseIsolatedJSDocComment(content, start, length) {
                initializeState("file.js", content, 2, undefined, 1);
                sourceFile = { languageVariant: 0, text: content };
                var jsDocComment = parseJSDocCommentWorker(start, length);
                var diagnostics = parseDiagnostics;
                clearState();
                return jsDocComment ? { jsDocComment: jsDocComment, diagnostics: diagnostics } : undefined;
            }
            JSDocParser.parseIsolatedJSDocComment = parseIsolatedJSDocComment;
            function parseJSDocComment(parent, start, length) {
                var saveToken = token;
                var saveParseDiagnosticsLength = parseDiagnostics.length;
                var saveParseErrorBeforeNextFinishedNode = parseErrorBeforeNextFinishedNode;
                var comment = parseJSDocCommentWorker(start, length);
                if (comment) {
                    comment.parent = parent;
                }
                token = saveToken;
                parseDiagnostics.length = saveParseDiagnosticsLength;
                parseErrorBeforeNextFinishedNode = saveParseErrorBeforeNextFinishedNode;
                return comment;
            }
            JSDocParser.parseJSDocComment = parseJSDocComment;
            function parseJSDocCommentWorker(start, length) {
                var content = sourceText;
                start = start || 0;
                var end = length === undefined ? content.length : start + length;
                length = end - start;
                ts.Debug.assert(start >= 0);
                ts.Debug.assert(start <= end);
                ts.Debug.assert(end <= content.length);
                var tags;
                var result;
                if (content.charCodeAt(start) === 47 &&
                    content.charCodeAt(start + 1) === 42 &&
                    content.charCodeAt(start + 2) === 42 &&
                    content.charCodeAt(start + 3) !== 42) {
                    scanner.scanRange(start + 3, length - 5, function () {
                        var canParseTag = true;
                        var seenAsterisk = true;
                        nextJSDocToken();
                        while (token !== 1) {
                            switch (token) {
                                case 55:
                                    if (canParseTag) {
                                        parseTag();
                                    }
                                    seenAsterisk = false;
                                    break;
                                case 4:
                                    canParseTag = true;
                                    seenAsterisk = false;
                                    break;
                                case 37:
                                    if (seenAsterisk) {
                                        canParseTag = false;
                                    }
                                    seenAsterisk = true;
                                    break;
                                case 69:
                                    canParseTag = false;
                                    break;
                                case 1:
                                    break;
                            }
                            nextJSDocToken();
                        }
                        result = createJSDocComment();
                    });
                }
                return result;
                function createJSDocComment() {
                    if (!tags) {
                        return undefined;
                    }
                    var result = createNode(272, start);
                    result.tags = tags;
                    return finishNode(result, end);
                }
                function skipWhitespace() {
                    while (token === 5 || token === 4) {
                        nextJSDocToken();
                    }
                }
                function parseTag() {
                    ts.Debug.assert(token === 55);
                    var atToken = createNode(55, scanner.getTokenPos());
                    atToken.end = scanner.getTextPos();
                    nextJSDocToken();
                    var tagName = parseJSDocIdentifierName();
                    if (!tagName) {
                        return;
                    }
                    var tag = handleTag(atToken, tagName) || handleUnknownTag(atToken, tagName);
                    addTag(tag);
                }
                function handleTag(atToken, tagName) {
                    if (tagName) {
                        switch (tagName.text) {
                            case "param":
                                return handleParamTag(atToken, tagName);
                            case "return":
                            case "returns":
                                return handleReturnTag(atToken, tagName);
                            case "template":
                                return handleTemplateTag(atToken, tagName);
                            case "type":
                                return handleTypeTag(atToken, tagName);
                        }
                    }
                    return undefined;
                }
                function handleUnknownTag(atToken, tagName) {
                    var result = createNode(273, atToken.pos);
                    result.atToken = atToken;
                    result.tagName = tagName;
                    return finishNode(result);
                }
                function addTag(tag) {
                    if (tag) {
                        if (!tags) {
                            tags = [];
                            tags.pos = tag.pos;
                        }
                        tags.push(tag);
                        tags.end = tag.end;
                    }
                }
                function tryParseTypeExpression() {
                    if (token !== 15) {
                        return undefined;
                    }
                    var typeExpression = parseJSDocTypeExpression();
                    return typeExpression;
                }
                function handleParamTag(atToken, tagName) {
                    var typeExpression = tryParseTypeExpression();
                    skipWhitespace();
                    var name;
                    var isBracketed;
                    if (parseOptionalToken(19)) {
                        name = parseJSDocIdentifierName();
                        isBracketed = true;
                        if (parseOptionalToken(56)) {
                            parseExpression();
                        }
                        parseExpected(20);
                    }
                    else if (ts.tokenIsIdentifierOrKeyword(token)) {
                        name = parseJSDocIdentifierName();
                    }
                    if (!name) {
                        parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                        return undefined;
                    }
                    var preName, postName;
                    if (typeExpression) {
                        postName = name;
                    }
                    else {
                        preName = name;
                    }
                    if (!typeExpression) {
                        typeExpression = tryParseTypeExpression();
                    }
                    var result = createNode(274, atToken.pos);
                    result.atToken = atToken;
                    result.tagName = tagName;
                    result.preParameterName = preName;
                    result.typeExpression = typeExpression;
                    result.postParameterName = postName;
                    result.isBracketed = isBracketed;
                    return finishNode(result);
                }
                function handleReturnTag(atToken, tagName) {
                    if (ts.forEach(tags, function (t) { return t.kind === 275; })) {
                        parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                    }
                    var result = createNode(275, atToken.pos);
                    result.atToken = atToken;
                    result.tagName = tagName;
                    result.typeExpression = tryParseTypeExpression();
                    return finishNode(result);
                }
                function handleTypeTag(atToken, tagName) {
                    if (ts.forEach(tags, function (t) { return t.kind === 276; })) {
                        parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                    }
                    var result = createNode(276, atToken.pos);
                    result.atToken = atToken;
                    result.tagName = tagName;
                    result.typeExpression = tryParseTypeExpression();
                    return finishNode(result);
                }
                function handleTemplateTag(atToken, tagName) {
                    if (ts.forEach(tags, function (t) { return t.kind === 277; })) {
                        parseErrorAtPosition(tagName.pos, scanner.getTokenPos() - tagName.pos, ts.Diagnostics._0_tag_already_specified, tagName.text);
                    }
                    var typeParameters = [];
                    typeParameters.pos = scanner.getStartPos();
                    while (true) {
                        var name_8 = parseJSDocIdentifierName();
                        if (!name_8) {
                            parseErrorAtPosition(scanner.getStartPos(), 0, ts.Diagnostics.Identifier_expected);
                            return undefined;
                        }
                        var typeParameter = createNode(140, name_8.pos);
                        typeParameter.name = name_8;
                        finishNode(typeParameter);
                        typeParameters.push(typeParameter);
                        if (token === 24) {
                            nextJSDocToken();
                        }
                        else {
                            break;
                        }
                    }
                    var result = createNode(277, atToken.pos);
                    result.atToken = atToken;
                    result.tagName = tagName;
                    result.typeParameters = typeParameters;
                    finishNode(result);
                    typeParameters.end = result.end;
                    return result;
                }
                function nextJSDocToken() {
                    return token = scanner.scanJSDocToken();
                }
                function parseJSDocIdentifierName() {
                    return createJSDocIdentifier(ts.tokenIsIdentifierOrKeyword(token));
                }
                function createJSDocIdentifier(isIdentifier) {
                    if (!isIdentifier) {
                        parseErrorAtCurrentToken(ts.Diagnostics.Identifier_expected);
                        return undefined;
                    }
                    var pos = scanner.getTokenPos();
                    var end = scanner.getTextPos();
                    var result = createNode(69, pos);
                    result.text = content.substring(pos, end);
                    finishNode(result, end);
                    nextJSDocToken();
                    return result;
                }
            }
            JSDocParser.parseJSDocCommentWorker = parseJSDocCommentWorker;
        })(JSDocParser = Parser.JSDocParser || (Parser.JSDocParser = {}));
    })(Parser || (Parser = {}));
    var IncrementalParser;
    (function (IncrementalParser) {
        function updateSourceFile(sourceFile, newText, textChangeRange, aggressiveChecks) {
            aggressiveChecks = aggressiveChecks || ts.Debug.shouldAssert(2);
            checkChangeRange(sourceFile, newText, textChangeRange, aggressiveChecks);
            if (ts.textChangeRangeIsUnchanged(textChangeRange)) {
                return sourceFile;
            }
            if (sourceFile.statements.length === 0) {
                return Parser.parseSourceFile(sourceFile.fileName, newText, sourceFile.languageVersion, undefined, true, sourceFile.scriptKind);
            }
            var incrementalSourceFile = sourceFile;
            ts.Debug.assert(!incrementalSourceFile.hasBeenIncrementallyParsed);
            incrementalSourceFile.hasBeenIncrementallyParsed = true;
            var oldText = sourceFile.text;
            var syntaxCursor = createSyntaxCursor(sourceFile);
            var changeRange = extendToAffectedRange(sourceFile, textChangeRange);
            checkChangeRange(sourceFile, newText, changeRange, aggressiveChecks);
            ts.Debug.assert(changeRange.span.start <= textChangeRange.span.start);
            ts.Debug.assert(ts.textSpanEnd(changeRange.span) === ts.textSpanEnd(textChangeRange.span));
            ts.Debug.assert(ts.textSpanEnd(ts.textChangeRangeNewSpan(changeRange)) === ts.textSpanEnd(ts.textChangeRangeNewSpan(textChangeRange)));
            var delta = ts.textChangeRangeNewSpan(changeRange).length - changeRange.span.length;
            updateTokenPositionsAndMarkElements(incrementalSourceFile, changeRange.span.start, ts.textSpanEnd(changeRange.span), ts.textSpanEnd(ts.textChangeRangeNewSpan(changeRange)), delta, oldText, newText, aggressiveChecks);
            var result = Parser.parseSourceFile(sourceFile.fileName, newText, sourceFile.languageVersion, syntaxCursor, true, sourceFile.scriptKind);
            return result;
        }
        IncrementalParser.updateSourceFile = updateSourceFile;
        function moveElementEntirelyPastChangeRange(element, isArray, delta, oldText, newText, aggressiveChecks) {
            if (isArray) {
                visitArray(element);
            }
            else {
                visitNode(element);
            }
            return;
            function visitNode(node) {
                var text = "";
                if (aggressiveChecks && shouldCheckNode(node)) {
                    text = oldText.substring(node.pos, node.end);
                }
                if (node._children) {
                    node._children = undefined;
                }
                if (node.jsDocComment) {
                    node.jsDocComment = undefined;
                }
                node.pos += delta;
                node.end += delta;
                if (aggressiveChecks && shouldCheckNode(node)) {
                    ts.Debug.assert(text === newText.substring(node.pos, node.end));
                }
                forEachChild(node, visitNode, visitArray);
                checkNodePositions(node, aggressiveChecks);
            }
            function visitArray(array) {
                array._children = undefined;
                array.pos += delta;
                array.end += delta;
                for (var _i = 0, array_7 = array; _i < array_7.length; _i++) {
                    var node = array_7[_i];
                    visitNode(node);
                }
            }
        }
        function shouldCheckNode(node) {
            switch (node.kind) {
                case 9:
                case 8:
                case 69:
                    return true;
            }
            return false;
        }
        function adjustIntersectingElement(element, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta) {
            ts.Debug.assert(element.end >= changeStart, "Adjusting an element that was entirely before the change range");
            ts.Debug.assert(element.pos <= changeRangeOldEnd, "Adjusting an element that was entirely after the change range");
            ts.Debug.assert(element.pos <= element.end);
            element.pos = Math.min(element.pos, changeRangeNewEnd);
            if (element.end >= changeRangeOldEnd) {
                element.end += delta;
            }
            else {
                element.end = Math.min(element.end, changeRangeNewEnd);
            }
            ts.Debug.assert(element.pos <= element.end);
            if (element.parent) {
                ts.Debug.assert(element.pos >= element.parent.pos);
                ts.Debug.assert(element.end <= element.parent.end);
            }
        }
        function checkNodePositions(node, aggressiveChecks) {
            if (aggressiveChecks) {
                var pos_2 = node.pos;
                forEachChild(node, function (child) {
                    ts.Debug.assert(child.pos >= pos_2);
                    pos_2 = child.end;
                });
                ts.Debug.assert(pos_2 <= node.end);
            }
        }
        function updateTokenPositionsAndMarkElements(sourceFile, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta, oldText, newText, aggressiveChecks) {
            visitNode(sourceFile);
            return;
            function visitNode(child) {
                ts.Debug.assert(child.pos <= child.end);
                if (child.pos > changeRangeOldEnd) {
                    moveElementEntirelyPastChangeRange(child, false, delta, oldText, newText, aggressiveChecks);
                    return;
                }
                var fullEnd = child.end;
                if (fullEnd >= changeStart) {
                    child.intersectsChange = true;
                    child._children = undefined;
                    adjustIntersectingElement(child, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta);
                    forEachChild(child, visitNode, visitArray);
                    checkNodePositions(child, aggressiveChecks);
                    return;
                }
                ts.Debug.assert(fullEnd < changeStart);
            }
            function visitArray(array) {
                ts.Debug.assert(array.pos <= array.end);
                if (array.pos > changeRangeOldEnd) {
                    moveElementEntirelyPastChangeRange(array, true, delta, oldText, newText, aggressiveChecks);
                    return;
                }
                var fullEnd = array.end;
                if (fullEnd >= changeStart) {
                    array.intersectsChange = true;
                    array._children = undefined;
                    adjustIntersectingElement(array, changeStart, changeRangeOldEnd, changeRangeNewEnd, delta);
                    for (var _i = 0, array_8 = array; _i < array_8.length; _i++) {
                        var node = array_8[_i];
                        visitNode(node);
                    }
                    return;
                }
                ts.Debug.assert(fullEnd < changeStart);
            }
        }
        function extendToAffectedRange(sourceFile, changeRange) {
            var maxLookahead = 1;
            var start = changeRange.span.start;
            for (var i = 0; start > 0 && i <= maxLookahead; i++) {
                var nearestNode = findNearestNodeStartingBeforeOrAtPosition(sourceFile, start);
                ts.Debug.assert(nearestNode.pos <= start);
                var position = nearestNode.pos;
                start = Math.max(0, position - 1);
            }
            var finalSpan = ts.createTextSpanFromBounds(start, ts.textSpanEnd(changeRange.span));
            var finalLength = changeRange.newLength + (changeRange.span.start - start);
            return ts.createTextChangeRange(finalSpan, finalLength);
        }
        function findNearestNodeStartingBeforeOrAtPosition(sourceFile, position) {
            var bestResult = sourceFile;
            var lastNodeEntirelyBeforePosition;
            forEachChild(sourceFile, visit);
            if (lastNodeEntirelyBeforePosition) {
                var lastChildOfLastEntireNodeBeforePosition = getLastChild(lastNodeEntirelyBeforePosition);
                if (lastChildOfLastEntireNodeBeforePosition.pos > bestResult.pos) {
                    bestResult = lastChildOfLastEntireNodeBeforePosition;
                }
            }
            return bestResult;
            function getLastChild(node) {
                while (true) {
                    var lastChild = getLastChildWorker(node);
                    if (lastChild) {
                        node = lastChild;
                    }
                    else {
                        return node;
                    }
                }
            }
            function getLastChildWorker(node) {
                var last = undefined;
                forEachChild(node, function (child) {
                    if (ts.nodeIsPresent(child)) {
                        last = child;
                    }
                });
                return last;
            }
            function visit(child) {
                if (ts.nodeIsMissing(child)) {
                    return;
                }
                if (child.pos <= position) {
                    if (child.pos >= bestResult.pos) {
                        bestResult = child;
                    }
                    if (position < child.end) {
                        forEachChild(child, visit);
                        return true;
                    }
                    else {
                        ts.Debug.assert(child.end <= position);
                        lastNodeEntirelyBeforePosition = child;
                    }
                }
                else {
                    ts.Debug.assert(child.pos > position);
                    return true;
                }
            }
        }
        function checkChangeRange(sourceFile, newText, textChangeRange, aggressiveChecks) {
            var oldText = sourceFile.text;
            if (textChangeRange) {
                ts.Debug.assert((oldText.length - textChangeRange.span.length + textChangeRange.newLength) === newText.length);
                if (aggressiveChecks || ts.Debug.shouldAssert(3)) {
                    var oldTextPrefix = oldText.substr(0, textChangeRange.span.start);
                    var newTextPrefix = newText.substr(0, textChangeRange.span.start);
                    ts.Debug.assert(oldTextPrefix === newTextPrefix);
                    var oldTextSuffix = oldText.substring(ts.textSpanEnd(textChangeRange.span), oldText.length);
                    var newTextSuffix = newText.substring(ts.textSpanEnd(ts.textChangeRangeNewSpan(textChangeRange)), newText.length);
                    ts.Debug.assert(oldTextSuffix === newTextSuffix);
                }
            }
        }
        function createSyntaxCursor(sourceFile) {
            var currentArray = sourceFile.statements;
            var currentArrayIndex = 0;
            ts.Debug.assert(currentArrayIndex < currentArray.length);
            var current = currentArray[currentArrayIndex];
            var lastQueriedPosition = -1;
            return {
                currentNode: function (position) {
                    if (position !== lastQueriedPosition) {
                        if (current && current.end === position && currentArrayIndex < (currentArray.length - 1)) {
                            currentArrayIndex++;
                            current = currentArray[currentArrayIndex];
                        }
                        if (!current || current.pos !== position) {
                            findHighestListElementThatStartsAtPosition(position);
                        }
                    }
                    lastQueriedPosition = position;
                    ts.Debug.assert(!current || current.pos === position);
                    return current;
                }
            };
            function findHighestListElementThatStartsAtPosition(position) {
                currentArray = undefined;
                currentArrayIndex = -1;
                current = undefined;
                forEachChild(sourceFile, visitNode, visitArray);
                return;
                function visitNode(node) {
                    if (position >= node.pos && position < node.end) {
                        forEachChild(node, visitNode, visitArray);
                        return true;
                    }
                    return false;
                }
                function visitArray(array) {
                    if (position >= array.pos && position < array.end) {
                        for (var i = 0, n = array.length; i < n; i++) {
                            var child = array[i];
                            if (child) {
                                if (child.pos === position) {
                                    currentArray = array;
                                    currentArrayIndex = i;
                                    current = child;
                                    return true;
                                }
                                else {
                                    if (child.pos < position && position < child.end) {
                                        forEachChild(child, visitNode, visitArray);
                                        return true;
                                    }
                                }
                            }
                        }
                    }
                    return false;
                }
            }
        }
    })(IncrementalParser || (IncrementalParser = {}));
})(ts || (ts = {}));
var ts;
(function (ts) {
    ts.bindTime = 0;
    function getModuleInstanceState(node) {
        if (node.kind === 221 || node.kind === 222) {
            return 0;
        }
        else if (ts.isConstEnumDeclaration(node)) {
            return 2;
        }
        else if ((node.kind === 229 || node.kind === 228) && !(node.flags & 1)) {
            return 0;
        }
        else if (node.kind === 225) {
            var state_1 = 0;
            ts.forEachChild(node, function (n) {
                switch (getModuleInstanceState(n)) {
                    case 0:
                        return false;
                    case 2:
                        state_1 = 2;
                        return false;
                    case 1:
                        state_1 = 1;
                        return true;
                }
            });
            return state_1;
        }
        else if (node.kind === 224) {
            return getModuleInstanceState(node.body);
        }
        else {
            return 1;
        }
    }
    ts.getModuleInstanceState = getModuleInstanceState;
    var binder = createBinder();
    function bindSourceFile(file, options) {
        var start = new Date().getTime();
        binder(file, options);
        ts.bindTime += new Date().getTime() - start;
    }
    ts.bindSourceFile = bindSourceFile;
    function createBinder() {
        var file;
        var options;
        var languageVersion;
        var parent;
        var container;
        var blockScopeContainer;
        var lastContainer;
        var seenThisKeyword;
        var hasExplicitReturn;
        var currentFlow;
        var currentBreakTarget;
        var currentContinueTarget;
        var currentTrueTarget;
        var currentFalseTarget;
        var preSwitchCaseFlow;
        var activeLabels;
        var hasClassExtends;
        var hasAsyncFunctions;
        var hasDecorators;
        var hasParameterDecorators;
        var hasJsxSpreadAttribute;
        var inStrictMode;
        var symbolCount = 0;
        var Symbol;
        var classifiableNames;
        var unreachableFlow = { kind: 0 };
        var reportedUnreachableFlow = { kind: 0 };
        function bindSourceFile(f, opts) {
            file = f;
            options = opts;
            languageVersion = ts.getEmitScriptTarget(options);
            inStrictMode = !!file.externalModuleIndicator;
            classifiableNames = {};
            Symbol = ts.objectAllocator.getSymbolConstructor();
            if (!file.locals) {
                bind(file);
                file.symbolCount = symbolCount;
                file.classifiableNames = classifiableNames;
            }
            file = undefined;
            options = undefined;
            languageVersion = undefined;
            parent = undefined;
            container = undefined;
            blockScopeContainer = undefined;
            lastContainer = undefined;
            seenThisKeyword = false;
            hasExplicitReturn = false;
            currentFlow = undefined;
            currentBreakTarget = undefined;
            currentContinueTarget = undefined;
            currentTrueTarget = undefined;
            currentFalseTarget = undefined;
            activeLabels = undefined;
            hasClassExtends = false;
            hasAsyncFunctions = false;
            hasDecorators = false;
            hasParameterDecorators = false;
            hasJsxSpreadAttribute = false;
        }
        return bindSourceFile;
        function createSymbol(flags, name) {
            symbolCount++;
            return new Symbol(flags, name);
        }
        function addDeclarationToSymbol(symbol, node, symbolFlags) {
            symbol.flags |= symbolFlags;
            node.symbol = symbol;
            if (!symbol.declarations) {
                symbol.declarations = [];
            }
            symbol.declarations.push(node);
            if (symbolFlags & 1952 && !symbol.exports) {
                symbol.exports = {};
            }
            if (symbolFlags & 6240 && !symbol.members) {
                symbol.members = {};
            }
            if (symbolFlags & 107455) {
                var valueDeclaration = symbol.valueDeclaration;
                if (!valueDeclaration ||
                    (valueDeclaration.kind !== node.kind && valueDeclaration.kind === 224)) {
                    symbol.valueDeclaration = node;
                }
            }
        }
        function getDeclarationName(node) {
            if (node.name) {
                if (ts.isAmbientModule(node)) {
                    return ts.isGlobalScopeAugmentation(node) ? "__global" : "\"" + node.name.text + "\"";
                }
                if (node.name.kind === 139) {
                    var nameExpression = node.name.expression;
                    if (ts.isStringOrNumericLiteral(nameExpression.kind)) {
                        return nameExpression.text;
                    }
                    ts.Debug.assert(ts.isWellKnownSymbolSyntactically(nameExpression));
                    return ts.getPropertyNameForKnownSymbolName(nameExpression.name.text);
                }
                return node.name.text;
            }
            switch (node.kind) {
                case 147:
                    return "__constructor";
                case 155:
                case 150:
                    return "__call";
                case 156:
                case 151:
                    return "__new";
                case 152:
                    return "__index";
                case 235:
                    return "__export";
                case 234:
                    return node.isExportEquals ? "export=" : "default";
                case 186:
                    switch (ts.getSpecialPropertyAssignmentKind(node)) {
                        case 2:
                            return "export=";
                        case 1:
                        case 4:
                            return node.left.name.text;
                        case 3:
                            return node.left.expression.name.text;
                    }
                    ts.Debug.fail("Unknown binary declaration kind");
                    break;
                case 219:
                case 220:
                    return node.flags & 512 ? "default" : undefined;
                case 268:
                    return ts.isJSDocConstructSignature(node) ? "__new" : "__call";
                case 141:
                    ts.Debug.assert(node.parent.kind === 268);
                    var functionType = node.parent;
                    var index = ts.indexOf(functionType.parameters, node);
                    return "p" + index;
            }
        }
        function getDisplayName(node) {
            return node.name ? ts.declarationNameToString(node.name) : getDeclarationName(node);
        }
        function declareSymbol(symbolTable, parent, node, includes, excludes) {
            ts.Debug.assert(!ts.hasDynamicName(node));
            var isDefaultExport = node.flags & 512;
            var name = isDefaultExport && parent ? "default" : getDeclarationName(node);
            var symbol;
            if (name !== undefined) {
                symbol = ts.hasProperty(symbolTable, name)
                    ? symbolTable[name]
                    : (symbolTable[name] = createSymbol(0, name));
                if (name && (includes & 788448)) {
                    classifiableNames[name] = name;
                }
                if (symbol.flags & excludes) {
                    if (node.name) {
                        node.name.parent = node;
                    }
                    var message_1 = symbol.flags & 2
                        ? ts.Diagnostics.Cannot_redeclare_block_scoped_variable_0
                        : ts.Diagnostics.Duplicate_identifier_0;
                    ts.forEach(symbol.declarations, function (declaration) {
                        if (declaration.flags & 512) {
                            message_1 = ts.Diagnostics.A_module_cannot_have_multiple_default_exports;
                        }
                    });
                    ts.forEach(symbol.declarations, function (declaration) {
                        file.bindDiagnostics.push(ts.createDiagnosticForNode(declaration.name || declaration, message_1, getDisplayName(declaration)));
                    });
                    file.bindDiagnostics.push(ts.createDiagnosticForNode(node.name || node, message_1, getDisplayName(node)));
                    symbol = createSymbol(0, name);
                }
            }
            else {
                symbol = createSymbol(0, "__missing");
            }
            addDeclarationToSymbol(symbol, node, includes);
            symbol.parent = parent;
            return symbol;
        }
        function declareModuleMember(node, symbolFlags, symbolExcludes) {
            var hasExportModifier = ts.getCombinedNodeFlags(node) & 1;
            if (symbolFlags & 8388608) {
                if (node.kind === 237 || (node.kind === 228 && hasExportModifier)) {
                    return declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
                }
                else {
                    return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
                }
            }
            else {
                if (!ts.isAmbientModule(node) && (hasExportModifier || container.flags & 8192)) {
                    var exportKind = (symbolFlags & 107455 ? 1048576 : 0) |
                        (symbolFlags & 793056 ? 2097152 : 0) |
                        (symbolFlags & 1536 ? 4194304 : 0);
                    var local = declareSymbol(container.locals, undefined, node, exportKind, symbolExcludes);
                    local.exportSymbol = declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
                    node.localSymbol = local;
                    return local;
                }
                else {
                    return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
                }
            }
        }
        function bindChildren(node) {
            var saveParent = parent;
            var saveContainer = container;
            var savedBlockScopeContainer = blockScopeContainer;
            parent = node;
            var containerFlags = getContainerFlags(node);
            if (containerFlags & 1) {
                container = blockScopeContainer = node;
                if (containerFlags & 4) {
                    container.locals = {};
                }
                addToContainerChain(container);
            }
            else if (containerFlags & 2) {
                blockScopeContainer = node;
                blockScopeContainer.locals = undefined;
            }
            var savedHasExplicitReturn;
            var savedCurrentFlow;
            var savedBreakTarget;
            var savedContinueTarget;
            var savedActiveLabels;
            var kind = node.kind;
            var flags = node.flags;
            flags &= ~98304;
            flags &= ~3932160;
            if (kind === 221) {
                seenThisKeyword = false;
            }
            var saveState = kind === 255 || kind === 225 || ts.isFunctionLikeKind(kind);
            if (saveState) {
                savedHasExplicitReturn = hasExplicitReturn;
                savedCurrentFlow = currentFlow;
                savedBreakTarget = currentBreakTarget;
                savedContinueTarget = currentContinueTarget;
                savedActiveLabels = activeLabels;
                hasExplicitReturn = false;
                currentFlow = { kind: 1 };
                currentBreakTarget = undefined;
                currentContinueTarget = undefined;
                activeLabels = undefined;
            }
            if (ts.isInJavaScriptFile(node) && node.jsDocComment) {
                bind(node.jsDocComment);
            }
            bindReachableStatement(node);
            if (currentFlow.kind !== 0 && ts.isFunctionLikeKind(kind) && ts.nodeIsPresent(node.body)) {
                flags |= 32768;
                if (hasExplicitReturn) {
                    flags |= 65536;
                }
            }
            if (kind === 221) {
                flags = seenThisKeyword ? flags | 16384 : flags & ~16384;
            }
            if (kind === 255) {
                if (hasClassExtends) {
                    flags |= 262144;
                }
                if (hasDecorators) {
                    flags |= 524288;
                }
                if (hasParameterDecorators) {
                    flags |= 1048576;
                }
                if (hasAsyncFunctions) {
                    flags |= 2097152;
                }
                if (hasJsxSpreadAttribute) {
                    flags |= 1073741824;
                }
            }
            node.flags = flags;
            if (saveState) {
                hasExplicitReturn = savedHasExplicitReturn;
                currentFlow = savedCurrentFlow;
                currentBreakTarget = savedBreakTarget;
                currentContinueTarget = savedContinueTarget;
                activeLabels = savedActiveLabels;
            }
            container = saveContainer;
            parent = saveParent;
            blockScopeContainer = savedBlockScopeContainer;
        }
        function bindReachableStatement(node) {
            if (checkUnreachable(node)) {
                ts.forEachChild(node, bind);
                return;
            }
            switch (node.kind) {
                case 204:
                    bindWhileStatement(node);
                    break;
                case 203:
                    bindDoStatement(node);
                    break;
                case 205:
                    bindForStatement(node);
                    break;
                case 206:
                case 207:
                    bindForInOrForOfStatement(node);
                    break;
                case 202:
                    bindIfStatement(node);
                    break;
                case 210:
                case 214:
                    bindReturnOrThrow(node);
                    break;
                case 209:
                case 208:
                    bindBreakOrContinueStatement(node);
                    break;
                case 215:
                    bindTryStatement(node);
                    break;
                case 212:
                    bindSwitchStatement(node);
                    break;
                case 226:
                    bindCaseBlock(node);
                    break;
                case 213:
                    bindLabeledStatement(node);
                    break;
                case 184:
                    bindPrefixUnaryExpressionFlow(node);
                    break;
                case 186:
                    bindBinaryExpressionFlow(node);
                    break;
                case 187:
                    bindConditionalExpressionFlow(node);
                    break;
                case 217:
                    bindVariableDeclarationFlow(node);
                    break;
                default:
                    ts.forEachChild(node, bind);
                    break;
            }
        }
        function isNarrowableReference(expr) {
            return expr.kind === 69 ||
                expr.kind === 97 ||
                expr.kind === 171 && isNarrowableReference(expr.expression);
        }
        function isNarrowingExpression(expr) {
            switch (expr.kind) {
                case 69:
                case 97:
                case 171:
                    return isNarrowableReference(expr);
                case 173:
                    return true;
                case 177:
                    return isNarrowingExpression(expr.expression);
                case 186:
                    return isNarrowingBinaryExpression(expr);
                case 184:
                    return expr.operator === 49 && isNarrowingExpression(expr.operand);
            }
            return false;
        }
        function isNarrowingBinaryExpression(expr) {
            switch (expr.operatorToken.kind) {
                case 56:
                    return isNarrowableReference(expr.left);
                case 30:
                case 31:
                case 32:
                case 33:
                    if (isNarrowingExpression(expr.left) && (expr.right.kind === 93 || expr.right.kind === 69)) {
                        return true;
                    }
                    if (expr.left.kind === 181 && isNarrowingExpression(expr.left.expression) && expr.right.kind === 9) {
                        return true;
                    }
                    return false;
                case 91:
                    return isNarrowingExpression(expr.left);
                case 24:
                    return isNarrowingExpression(expr.right);
            }
            return false;
        }
        function createFlowLabel() {
            return {
                kind: 2,
                antecedents: undefined
            };
        }
        function createFlowLoopLabel() {
            return {
                kind: 3,
                antecedents: undefined
            };
        }
        function addAntecedent(label, antecedent) {
            if (antecedent.kind !== 0 && !ts.contains(label.antecedents, antecedent)) {
                (label.antecedents || (label.antecedents = [])).push(antecedent);
            }
        }
        function createFlowCondition(antecedent, expression, assumeTrue) {
            if (antecedent.kind === 0) {
                return antecedent;
            }
            if (!expression) {
                return assumeTrue ? antecedent : unreachableFlow;
            }
            if (expression.kind === 99 && !assumeTrue || expression.kind === 84 && assumeTrue) {
                return unreachableFlow;
            }
            if (!isNarrowingExpression(expression)) {
                return antecedent;
            }
            return {
                kind: 5,
                antecedent: antecedent,
                expression: expression,
                assumeTrue: assumeTrue
            };
        }
        function createFlowAssignment(antecedent, node) {
            return {
                kind: 4,
                antecedent: antecedent,
                node: node
            };
        }
        function finishFlowLabel(flow) {
            var antecedents = flow.antecedents;
            if (!antecedents) {
                return unreachableFlow;
            }
            if (antecedents.length === 1) {
                return antecedents[0];
            }
            return flow;
        }
        function isStatementCondition(node) {
            var parent = node.parent;
            switch (parent.kind) {
                case 202:
                case 204:
                case 203:
                    return parent.expression === node;
                case 205:
                case 187:
                    return parent.condition === node;
            }
            return false;
        }
        function isLogicalExpression(node) {
            while (true) {
                if (node.kind === 177) {
                    node = node.expression;
                }
                else if (node.kind === 184 && node.operator === 49) {
                    node = node.operand;
                }
                else {
                    return node.kind === 186 && (node.operatorToken.kind === 51 ||
                        node.operatorToken.kind === 52);
                }
            }
        }
        function isTopLevelLogicalExpression(node) {
            while (node.parent.kind === 177 ||
                node.parent.kind === 184 &&
                    node.parent.operator === 49) {
                node = node.parent;
            }
            return !isStatementCondition(node) && !isLogicalExpression(node.parent);
        }
        function bindCondition(node, trueTarget, falseTarget) {
            var saveTrueTarget = currentTrueTarget;
            var saveFalseTarget = currentFalseTarget;
            currentTrueTarget = trueTarget;
            currentFalseTarget = falseTarget;
            bind(node);
            currentTrueTarget = saveTrueTarget;
            currentFalseTarget = saveFalseTarget;
            if (!node || !isLogicalExpression(node)) {
                addAntecedent(trueTarget, createFlowCondition(currentFlow, node, true));
                addAntecedent(falseTarget, createFlowCondition(currentFlow, node, false));
            }
        }
        function bindIterativeStatement(node, breakTarget, continueTarget) {
            var saveBreakTarget = currentBreakTarget;
            var saveContinueTarget = currentContinueTarget;
            currentBreakTarget = breakTarget;
            currentContinueTarget = continueTarget;
            bind(node);
            currentBreakTarget = saveBreakTarget;
            currentContinueTarget = saveContinueTarget;
        }
        function bindWhileStatement(node) {
            var preWhileLabel = createFlowLoopLabel();
            var preBodyLabel = createFlowLabel();
            var postWhileLabel = createFlowLabel();
            addAntecedent(preWhileLabel, currentFlow);
            currentFlow = preWhileLabel;
            bindCondition(node.expression, preBodyLabel, postWhileLabel);
            currentFlow = finishFlowLabel(preBodyLabel);
            bindIterativeStatement(node.statement, postWhileLabel, preWhileLabel);
            addAntecedent(preWhileLabel, currentFlow);
            currentFlow = finishFlowLabel(postWhileLabel);
        }
        function bindDoStatement(node) {
            var preDoLabel = createFlowLoopLabel();
            var preConditionLabel = createFlowLabel();
            var postDoLabel = createFlowLabel();
            addAntecedent(preDoLabel, currentFlow);
            currentFlow = preDoLabel;
            bindIterativeStatement(node.statement, postDoLabel, preConditionLabel);
            addAntecedent(preConditionLabel, currentFlow);
            currentFlow = finishFlowLabel(preConditionLabel);
            bindCondition(node.expression, preDoLabel, postDoLabel);
            currentFlow = finishFlowLabel(postDoLabel);
        }
        function bindForStatement(node) {
            var preLoopLabel = createFlowLoopLabel();
            var preBodyLabel = createFlowLabel();
            var postLoopLabel = createFlowLabel();
            bind(node.initializer);
            addAntecedent(preLoopLabel, currentFlow);
            currentFlow = preLoopLabel;
            bindCondition(node.condition, preBodyLabel, postLoopLabel);
            currentFlow = finishFlowLabel(preBodyLabel);
            bindIterativeStatement(node.statement, postLoopLabel, preLoopLabel);
            bind(node.incrementor);
            addAntecedent(preLoopLabel, currentFlow);
            currentFlow = finishFlowLabel(postLoopLabel);
        }
        function bindForInOrForOfStatement(node) {
            var preLoopLabel = createFlowLoopLabel();
            var postLoopLabel = createFlowLabel();
            addAntecedent(preLoopLabel, currentFlow);
            currentFlow = preLoopLabel;
            bind(node.expression);
            addAntecedent(postLoopLabel, currentFlow);
            bind(node.initializer);
            if (node.initializer.kind !== 218) {
                bindAssignmentTargetFlow(node.initializer);
            }
            bindIterativeStatement(node.statement, postLoopLabel, preLoopLabel);
            addAntecedent(preLoopLabel, currentFlow);
            currentFlow = finishFlowLabel(postLoopLabel);
        }
        function bindIfStatement(node) {
            var thenLabel = createFlowLabel();
            var elseLabel = createFlowLabel();
            var postIfLabel = createFlowLabel();
            bindCondition(node.expression, thenLabel, elseLabel);
            currentFlow = finishFlowLabel(thenLabel);
            bind(node.thenStatement);
            addAntecedent(postIfLabel, currentFlow);
            currentFlow = finishFlowLabel(elseLabel);
            bind(node.elseStatement);
            addAntecedent(postIfLabel, currentFlow);
            currentFlow = finishFlowLabel(postIfLabel);
        }
        function bindReturnOrThrow(node) {
            bind(node.expression);
            if (node.kind === 210) {
                hasExplicitReturn = true;
            }
            currentFlow = unreachableFlow;
        }
        function findActiveLabel(name) {
            if (activeLabels) {
                for (var _i = 0, activeLabels_1 = activeLabels; _i < activeLabels_1.length; _i++) {
                    var label = activeLabels_1[_i];
                    if (label.name === name) {
                        return label;
                    }
                }
            }
            return undefined;
        }
        function bindbreakOrContinueFlow(node, breakTarget, continueTarget) {
            var flowLabel = node.kind === 209 ? breakTarget : continueTarget;
            if (flowLabel) {
                addAntecedent(flowLabel, currentFlow);
                currentFlow = unreachableFlow;
            }
        }
        function bindBreakOrContinueStatement(node) {
            bind(node.label);
            if (node.label) {
                var activeLabel = findActiveLabel(node.label.text);
                if (activeLabel) {
                    activeLabel.referenced = true;
                    bindbreakOrContinueFlow(node, activeLabel.breakTarget, activeLabel.continueTarget);
                }
            }
            else {
                bindbreakOrContinueFlow(node, currentBreakTarget, currentContinueTarget);
            }
        }
        function bindTryStatement(node) {
            var postFinallyLabel = createFlowLabel();
            var preTryFlow = currentFlow;
            bind(node.tryBlock);
            addAntecedent(postFinallyLabel, currentFlow);
            if (node.catchClause) {
                currentFlow = preTryFlow;
                bind(node.catchClause);
                addAntecedent(postFinallyLabel, currentFlow);
            }
            if (node.finallyBlock) {
                currentFlow = preTryFlow;
                bind(node.finallyBlock);
            }
            currentFlow = finishFlowLabel(postFinallyLabel);
        }
        function bindSwitchStatement(node) {
            var postSwitchLabel = createFlowLabel();
            bind(node.expression);
            var saveBreakTarget = currentBreakTarget;
            var savePreSwitchCaseFlow = preSwitchCaseFlow;
            currentBreakTarget = postSwitchLabel;
            preSwitchCaseFlow = currentFlow;
            bind(node.caseBlock);
            addAntecedent(postSwitchLabel, currentFlow);
            var hasDefault = ts.forEach(node.caseBlock.clauses, function (c) { return c.kind === 249; });
            if (!hasDefault) {
                addAntecedent(postSwitchLabel, preSwitchCaseFlow);
            }
            currentBreakTarget = saveBreakTarget;
            preSwitchCaseFlow = savePreSwitchCaseFlow;
            currentFlow = finishFlowLabel(postSwitchLabel);
        }
        function bindCaseBlock(node) {
            var clauses = node.clauses;
            for (var i = 0; i < clauses.length; i++) {
                var clause = clauses[i];
                if (clause.statements.length) {
                    if (currentFlow.kind === 0) {
                        currentFlow = preSwitchCaseFlow;
                    }
                    else {
                        var preCaseLabel = createFlowLabel();
                        addAntecedent(preCaseLabel, preSwitchCaseFlow);
                        addAntecedent(preCaseLabel, currentFlow);
                        currentFlow = finishFlowLabel(preCaseLabel);
                    }
                    bind(clause);
                    if (currentFlow.kind !== 0 && i !== clauses.length - 1 && options.noFallthroughCasesInSwitch) {
                        errorOnFirstToken(clause, ts.Diagnostics.Fallthrough_case_in_switch);
                    }
                }
                else {
                    bind(clause);
                }
            }
        }
        function pushActiveLabel(name, breakTarget, continueTarget) {
            var activeLabel = {
                name: name,
                breakTarget: breakTarget,
                continueTarget: continueTarget,
                referenced: false
            };
            (activeLabels || (activeLabels = [])).push(activeLabel);
            return activeLabel;
        }
        function popActiveLabel() {
            activeLabels.pop();
        }
        function bindLabeledStatement(node) {
            var preStatementLabel = createFlowLoopLabel();
            var postStatementLabel = createFlowLabel();
            bind(node.label);
            addAntecedent(preStatementLabel, currentFlow);
            var activeLabel = pushActiveLabel(node.label.text, postStatementLabel, preStatementLabel);
            bind(node.statement);
            popActiveLabel();
            if (!activeLabel.referenced && !options.allowUnusedLabels) {
                file.bindDiagnostics.push(ts.createDiagnosticForNode(node.label, ts.Diagnostics.Unused_label));
            }
            addAntecedent(postStatementLabel, currentFlow);
            currentFlow = finishFlowLabel(postStatementLabel);
        }
        function bindDestructuringTargetFlow(node) {
            if (node.kind === 186 && node.operatorToken.kind === 56) {
                bindAssignmentTargetFlow(node.left);
            }
            else {
                bindAssignmentTargetFlow(node);
            }
        }
        function bindAssignmentTargetFlow(node) {
            if (isNarrowableReference(node)) {
                currentFlow = createFlowAssignment(currentFlow, node);
            }
            else if (node.kind === 169) {
                for (var _i = 0, _a = node.elements; _i < _a.length; _i++) {
                    var e = _a[_i];
                    if (e.kind === 190) {
                        bindAssignmentTargetFlow(e.expression);
                    }
                    else {
                        bindDestructuringTargetFlow(e);
                    }
                }
            }
            else if (node.kind === 170) {
                for (var _b = 0, _c = node.properties; _b < _c.length; _b++) {
                    var p = _c[_b];
                    if (p.kind === 252) {
                        bindDestructuringTargetFlow(p.initializer);
                    }
                    else if (p.kind === 253) {
                        bindAssignmentTargetFlow(p.name);
                    }
                }
            }
        }
        function bindLogicalExpression(node, trueTarget, falseTarget) {
            var preRightLabel = createFlowLabel();
            if (node.operatorToken.kind === 51) {
                bindCondition(node.left, preRightLabel, falseTarget);
            }
            else {
                bindCondition(node.left, trueTarget, preRightLabel);
            }
            currentFlow = finishFlowLabel(preRightLabel);
            bind(node.operatorToken);
            bindCondition(node.right, trueTarget, falseTarget);
        }
        function bindPrefixUnaryExpressionFlow(node) {
            if (node.operator === 49) {
                var saveTrueTarget = currentTrueTarget;
                currentTrueTarget = currentFalseTarget;
                currentFalseTarget = saveTrueTarget;
                ts.forEachChild(node, bind);
                currentFalseTarget = currentTrueTarget;
                currentTrueTarget = saveTrueTarget;
            }
            else {
                ts.forEachChild(node, bind);
            }
        }
        function bindBinaryExpressionFlow(node) {
            var operator = node.operatorToken.kind;
            if (operator === 51 || operator === 52) {
                if (isTopLevelLogicalExpression(node)) {
                    var postExpressionLabel = createFlowLabel();
                    bindLogicalExpression(node, postExpressionLabel, postExpressionLabel);
                    currentFlow = finishFlowLabel(postExpressionLabel);
                }
                else {
                    bindLogicalExpression(node, currentTrueTarget, currentFalseTarget);
                }
            }
            else {
                ts.forEachChild(node, bind);
                if (operator === 56 && !ts.isAssignmentTarget(node)) {
                    bindAssignmentTargetFlow(node.left);
                }
            }
        }
        function bindConditionalExpressionFlow(node) {
            var trueLabel = createFlowLabel();
            var falseLabel = createFlowLabel();
            var postExpressionLabel = createFlowLabel();
            bindCondition(node.condition, trueLabel, falseLabel);
            currentFlow = finishFlowLabel(trueLabel);
            bind(node.whenTrue);
            addAntecedent(postExpressionLabel, currentFlow);
            currentFlow = finishFlowLabel(falseLabel);
            bind(node.whenFalse);
            addAntecedent(postExpressionLabel, currentFlow);
            currentFlow = finishFlowLabel(postExpressionLabel);
        }
        function bindInitializedVariableFlow(node) {
            var name = node.name;
            if (ts.isBindingPattern(name)) {
                for (var _i = 0, _a = name.elements; _i < _a.length; _i++) {
                    var child = _a[_i];
                    bindInitializedVariableFlow(child);
                }
            }
            else {
                currentFlow = createFlowAssignment(currentFlow, node);
            }
        }
        function bindVariableDeclarationFlow(node) {
            ts.forEachChild(node, bind);
            if (node.initializer || node.parent.parent.kind === 206 || node.parent.parent.kind === 207) {
                bindInitializedVariableFlow(node);
            }
        }
        function getContainerFlags(node) {
            switch (node.kind) {
                case 191:
                case 220:
                case 221:
                case 223:
                case 170:
                case 158:
                case 264:
                    return 1;
                case 150:
                case 151:
                case 152:
                case 146:
                case 145:
                case 219:
                case 147:
                case 148:
                case 149:
                case 155:
                case 268:
                case 156:
                case 178:
                case 179:
                case 224:
                case 255:
                case 222:
                    return 5;
                case 251:
                case 205:
                case 206:
                case 207:
                case 226:
                    return 2;
                case 198:
                    return ts.isFunctionLike(node.parent) ? 0 : 2;
            }
            return 0;
        }
        function addToContainerChain(next) {
            if (lastContainer) {
                lastContainer.nextContainer = next;
            }
            lastContainer = next;
        }
        function declareSymbolAndAddToSymbolTable(node, symbolFlags, symbolExcludes) {
            declareSymbolAndAddToSymbolTableWorker(node, symbolFlags, symbolExcludes);
        }
        function declareSymbolAndAddToSymbolTableWorker(node, symbolFlags, symbolExcludes) {
            switch (container.kind) {
                case 224:
                    return declareModuleMember(node, symbolFlags, symbolExcludes);
                case 255:
                    return declareSourceFileMember(node, symbolFlags, symbolExcludes);
                case 191:
                case 220:
                    return declareClassMember(node, symbolFlags, symbolExcludes);
                case 223:
                    return declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes);
                case 158:
                case 170:
                case 221:
                case 264:
                    return declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
                case 155:
                case 156:
                case 150:
                case 151:
                case 152:
                case 146:
                case 145:
                case 147:
                case 148:
                case 149:
                case 219:
                case 178:
                case 179:
                case 268:
                case 222:
                    return declareSymbol(container.locals, undefined, node, symbolFlags, symbolExcludes);
            }
        }
        function declareClassMember(node, symbolFlags, symbolExcludes) {
            return node.flags & 32
                ? declareSymbol(container.symbol.exports, container.symbol, node, symbolFlags, symbolExcludes)
                : declareSymbol(container.symbol.members, container.symbol, node, symbolFlags, symbolExcludes);
        }
        function declareSourceFileMember(node, symbolFlags, symbolExcludes) {
            return ts.isExternalModule(file)
                ? declareModuleMember(node, symbolFlags, symbolExcludes)
                : declareSymbol(file.locals, undefined, node, symbolFlags, symbolExcludes);
        }
        function hasExportDeclarations(node) {
            var body = node.kind === 255 ? node : node.body;
            if (body.kind === 255 || body.kind === 225) {
                for (var _i = 0, _a = body.statements; _i < _a.length; _i++) {
                    var stat = _a[_i];
                    if (stat.kind === 235 || stat.kind === 234) {
                        return true;
                    }
                }
            }
            return false;
        }
        function setExportContextFlag(node) {
            if (ts.isInAmbientContext(node) && !hasExportDeclarations(node)) {
                node.flags |= 8192;
            }
            else {
                node.flags &= ~8192;
            }
        }
        function bindModuleDeclaration(node) {
            setExportContextFlag(node);
            if (ts.isAmbientModule(node)) {
                if (node.flags & 1) {
                    errorOnFirstToken(node, ts.Diagnostics.export_modifier_cannot_be_applied_to_ambient_modules_and_module_augmentations_since_they_are_always_visible);
                }
                if (ts.isExternalModuleAugmentation(node)) {
                    declareSymbolAndAddToSymbolTable(node, 1024, 0);
                }
                else {
                    declareSymbolAndAddToSymbolTable(node, 512, 106639);
                }
            }
            else {
                var state = getModuleInstanceState(node);
                if (state === 0) {
                    declareSymbolAndAddToSymbolTable(node, 1024, 0);
                }
                else {
                    declareSymbolAndAddToSymbolTable(node, 512, 106639);
                    if (node.symbol.flags & (16 | 32 | 256)) {
                        node.symbol.constEnumOnlyModule = false;
                    }
                    else {
                        var currentModuleIsConstEnumOnly = state === 2;
                        if (node.symbol.constEnumOnlyModule === undefined) {
                            node.symbol.constEnumOnlyModule = currentModuleIsConstEnumOnly;
                        }
                        else {
                            node.symbol.constEnumOnlyModule = node.symbol.constEnumOnlyModule && currentModuleIsConstEnumOnly;
                        }
                    }
                }
            }
        }
        function bindFunctionOrConstructorType(node) {
            var symbol = createSymbol(131072, getDeclarationName(node));
            addDeclarationToSymbol(symbol, node, 131072);
            var typeLiteralSymbol = createSymbol(2048, "__type");
            addDeclarationToSymbol(typeLiteralSymbol, node, 2048);
            typeLiteralSymbol.members = (_a = {}, _a[symbol.name] = symbol, _a);
            var _a;
        }
        function bindObjectLiteralExpression(node) {
            if (inStrictMode) {
                var seen = {};
                for (var _i = 0, _a = node.properties; _i < _a.length; _i++) {
                    var prop = _a[_i];
                    if (prop.name.kind !== 69) {
                        continue;
                    }
                    var identifier = prop.name;
                    var currentKind = prop.kind === 252 || prop.kind === 253 || prop.kind === 146
                        ? 1
                        : 2;
                    var existingKind = seen[identifier.text];
                    if (!existingKind) {
                        seen[identifier.text] = currentKind;
                        continue;
                    }
                    if (currentKind === 1 && existingKind === 1) {
                        var span = ts.getErrorSpanForNode(file, identifier);
                        file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, ts.Diagnostics.An_object_literal_cannot_have_multiple_properties_with_the_same_name_in_strict_mode));
                    }
                }
            }
            return bindAnonymousDeclaration(node, 4096, "__object");
        }
        function bindAnonymousDeclaration(node, symbolFlags, name) {
            var symbol = createSymbol(symbolFlags, name);
            addDeclarationToSymbol(symbol, node, symbolFlags);
        }
        function bindBlockScopedDeclaration(node, symbolFlags, symbolExcludes) {
            switch (blockScopeContainer.kind) {
                case 224:
                    declareModuleMember(node, symbolFlags, symbolExcludes);
                    break;
                case 255:
                    if (ts.isExternalModule(container)) {
                        declareModuleMember(node, symbolFlags, symbolExcludes);
                        break;
                    }
                default:
                    if (!blockScopeContainer.locals) {
                        blockScopeContainer.locals = {};
                        addToContainerChain(blockScopeContainer);
                    }
                    declareSymbol(blockScopeContainer.locals, undefined, node, symbolFlags, symbolExcludes);
            }
        }
        function bindBlockScopedVariableDeclaration(node) {
            bindBlockScopedDeclaration(node, 2, 107455);
        }
        function checkStrictModeIdentifier(node) {
            if (inStrictMode &&
                node.originalKeywordKind >= 106 &&
                node.originalKeywordKind <= 114 &&
                !ts.isIdentifierName(node) &&
                !ts.isInAmbientContext(node)) {
                if (!file.parseDiagnostics.length) {
                    file.bindDiagnostics.push(ts.createDiagnosticForNode(node, getStrictModeIdentifierMessage(node), ts.declarationNameToString(node)));
                }
            }
        }
        function getStrictModeIdentifierMessage(node) {
            if (ts.getContainingClass(node)) {
                return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode_Class_definitions_are_automatically_in_strict_mode;
            }
            if (file.externalModuleIndicator) {
                return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode_Modules_are_automatically_in_strict_mode;
            }
            return ts.Diagnostics.Identifier_expected_0_is_a_reserved_word_in_strict_mode;
        }
        function checkStrictModeBinaryExpression(node) {
            if (inStrictMode && ts.isLeftHandSideExpression(node.left) && ts.isAssignmentOperator(node.operatorToken.kind)) {
                checkStrictModeEvalOrArguments(node, node.left);
            }
        }
        function checkStrictModeCatchClause(node) {
            if (inStrictMode && node.variableDeclaration) {
                checkStrictModeEvalOrArguments(node, node.variableDeclaration.name);
            }
        }
        function checkStrictModeDeleteExpression(node) {
            if (inStrictMode && node.expression.kind === 69) {
                var span = ts.getErrorSpanForNode(file, node.expression);
                file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, ts.Diagnostics.delete_cannot_be_called_on_an_identifier_in_strict_mode));
            }
        }
        function isEvalOrArgumentsIdentifier(node) {
            return node.kind === 69 &&
                (node.text === "eval" || node.text === "arguments");
        }
        function checkStrictModeEvalOrArguments(contextNode, name) {
            if (name && name.kind === 69) {
                var identifier = name;
                if (isEvalOrArgumentsIdentifier(identifier)) {
                    var span = ts.getErrorSpanForNode(file, name);
                    file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, getStrictModeEvalOrArgumentsMessage(contextNode), identifier.text));
                }
            }
        }
        function getStrictModeEvalOrArgumentsMessage(node) {
            if (ts.getContainingClass(node)) {
                return ts.Diagnostics.Invalid_use_of_0_Class_definitions_are_automatically_in_strict_mode;
            }
            if (file.externalModuleIndicator) {
                return ts.Diagnostics.Invalid_use_of_0_Modules_are_automatically_in_strict_mode;
            }
            return ts.Diagnostics.Invalid_use_of_0_in_strict_mode;
        }
        function checkStrictModeFunctionName(node) {
            if (inStrictMode) {
                checkStrictModeEvalOrArguments(node, node.name);
            }
        }
        function getStrictModeBlockScopeFunctionDeclarationMessage(node) {
            if (ts.getContainingClass(node)) {
                return ts.Diagnostics.Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Class_definitions_are_automatically_in_strict_mode;
            }
            if (file.externalModuleIndicator) {
                return ts.Diagnostics.Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5_Modules_are_automatically_in_strict_mode;
            }
            return ts.Diagnostics.Function_declarations_are_not_allowed_inside_blocks_in_strict_mode_when_targeting_ES3_or_ES5;
        }
        function checkStrictModeFunctionDeclaration(node) {
            if (languageVersion < 2) {
                if (blockScopeContainer.kind !== 255 &&
                    blockScopeContainer.kind !== 224 &&
                    !ts.isFunctionLike(blockScopeContainer)) {
                    var errorSpan = ts.getErrorSpanForNode(file, node);
                    file.bindDiagnostics.push(ts.createFileDiagnostic(file, errorSpan.start, errorSpan.length, getStrictModeBlockScopeFunctionDeclarationMessage(node)));
                }
            }
        }
        function checkStrictModeNumericLiteral(node) {
            if (inStrictMode && node.isOctalLiteral) {
                file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Octal_literals_are_not_allowed_in_strict_mode));
            }
        }
        function checkStrictModePostfixUnaryExpression(node) {
            if (inStrictMode) {
                checkStrictModeEvalOrArguments(node, node.operand);
            }
        }
        function checkStrictModePrefixUnaryExpression(node) {
            if (inStrictMode) {
                if (node.operator === 41 || node.operator === 42) {
                    checkStrictModeEvalOrArguments(node, node.operand);
                }
            }
        }
        function checkStrictModeWithStatement(node) {
            if (inStrictMode) {
                errorOnFirstToken(node, ts.Diagnostics.with_statements_are_not_allowed_in_strict_mode);
            }
        }
        function errorOnFirstToken(node, message, arg0, arg1, arg2) {
            var span = ts.getSpanOfTokenAtPosition(file, node.pos);
            file.bindDiagnostics.push(ts.createFileDiagnostic(file, span.start, span.length, message, arg0, arg1, arg2));
        }
        function getDestructuringParameterName(node) {
            return "__" + ts.indexOf(node.parent.parameters, node);
        }
        function bind(node) {
            if (!node) {
                return;
            }
            node.parent = parent;
            var savedInStrictMode = inStrictMode;
            if (!savedInStrictMode) {
                updateStrictMode(node);
            }
            bindWorker(node);
            bindChildren(node);
            inStrictMode = savedInStrictMode;
        }
        function updateStrictMode(node) {
            switch (node.kind) {
                case 255:
                case 225:
                    updateStrictModeStatementList(node.statements);
                    return;
                case 198:
                    if (ts.isFunctionLike(node.parent)) {
                        updateStrictModeStatementList(node.statements);
                    }
                    return;
                case 220:
                case 191:
                    inStrictMode = true;
                    return;
            }
        }
        function updateStrictModeStatementList(statements) {
            for (var _i = 0, statements_1 = statements; _i < statements_1.length; _i++) {
                var statement = statements_1[_i];
                if (!ts.isPrologueDirective(statement)) {
                    return;
                }
                if (isUseStrictPrologueDirective(statement)) {
                    inStrictMode = true;
                    return;
                }
            }
        }
        function isUseStrictPrologueDirective(node) {
            var nodeText = ts.getTextOfNodeFromSourceText(file.text, node.expression);
            return nodeText === '"use strict"' || nodeText === "'use strict'";
        }
        function bindWorker(node) {
            switch (node.kind) {
                case 69:
                case 97:
                    if (currentFlow && (ts.isExpression(node) || parent.kind === 253)) {
                        node.flowNode = currentFlow;
                    }
                    return checkStrictModeIdentifier(node);
                case 171:
                    if (currentFlow && isNarrowableReference(node)) {
                        node.flowNode = currentFlow;
                    }
                    break;
                case 186:
                    if (ts.isInJavaScriptFile(node)) {
                        var specialKind = ts.getSpecialPropertyAssignmentKind(node);
                        switch (specialKind) {
                            case 1:
                                bindExportsPropertyAssignment(node);
                                break;
                            case 2:
                                bindModuleExportsAssignment(node);
                                break;
                            case 3:
                                bindPrototypePropertyAssignment(node);
                                break;
                            case 4:
                                bindThisPropertyAssignment(node);
                                break;
                            case 0:
                                break;
                            default:
                                ts.Debug.fail("Unknown special property assignment kind");
                        }
                    }
                    return checkStrictModeBinaryExpression(node);
                case 251:
                    return checkStrictModeCatchClause(node);
                case 180:
                    return checkStrictModeDeleteExpression(node);
                case 8:
                    return checkStrictModeNumericLiteral(node);
                case 185:
                    return checkStrictModePostfixUnaryExpression(node);
                case 184:
                    return checkStrictModePrefixUnaryExpression(node);
                case 211:
                    return checkStrictModeWithStatement(node);
                case 164:
                    seenThisKeyword = true;
                    return;
                case 153:
                    return checkTypePredicate(node);
                case 140:
                    return declareSymbolAndAddToSymbolTable(node, 262144, 530912);
                case 141:
                    return bindParameter(node);
                case 217:
                case 168:
                    return bindVariableDeclarationOrBindingElement(node);
                case 144:
                case 143:
                case 265:
                    return bindPropertyOrMethodOrAccessor(node, 4 | (node.questionToken ? 536870912 : 0), 107455);
                case 252:
                case 253:
                    return bindPropertyOrMethodOrAccessor(node, 4, 107455);
                case 254:
                    return bindPropertyOrMethodOrAccessor(node, 8, 107455);
                case 246:
                    hasJsxSpreadAttribute = true;
                    return;
                case 150:
                case 151:
                case 152:
                    return declareSymbolAndAddToSymbolTable(node, 131072, 0);
                case 146:
                case 145:
                    return bindPropertyOrMethodOrAccessor(node, 8192 | (node.questionToken ? 536870912 : 0), ts.isObjectLiteralMethod(node) ? 107455 : 99263);
                case 219:
                    return bindFunctionDeclaration(node);
                case 147:
                    return declareSymbolAndAddToSymbolTable(node, 16384, 0);
                case 148:
                    return bindPropertyOrMethodOrAccessor(node, 32768, 41919);
                case 149:
                    return bindPropertyOrMethodOrAccessor(node, 65536, 74687);
                case 155:
                case 156:
                case 268:
                    return bindFunctionOrConstructorType(node);
                case 158:
                case 264:
                    return bindAnonymousDeclaration(node, 2048, "__type");
                case 170:
                    return bindObjectLiteralExpression(node);
                case 178:
                case 179:
                    return bindFunctionExpression(node);
                case 173:
                    if (ts.isInJavaScriptFile(node)) {
                        bindCallExpression(node);
                    }
                    break;
                case 191:
                case 220:
                    return bindClassLikeDeclaration(node);
                case 221:
                    return bindBlockScopedDeclaration(node, 64, 792960);
                case 222:
                    return bindBlockScopedDeclaration(node, 524288, 793056);
                case 223:
                    return bindEnumDeclaration(node);
                case 224:
                    return bindModuleDeclaration(node);
                case 228:
                case 231:
                case 233:
                case 237:
                    return declareSymbolAndAddToSymbolTable(node, 8388608, 8388608);
                case 227:
                    return bindGlobalModuleExportDeclaration(node);
                case 230:
                    return bindImportClause(node);
                case 235:
                    return bindExportDeclaration(node);
                case 234:
                    return bindExportAssignment(node);
                case 255:
                    return bindSourceFileIfExternalModule();
            }
        }
        function checkTypePredicate(node) {
            var parameterName = node.parameterName, type = node.type;
            if (parameterName && parameterName.kind === 69) {
                checkStrictModeIdentifier(parameterName);
            }
            if (parameterName && parameterName.kind === 164) {
                seenThisKeyword = true;
            }
            bind(type);
        }
        function bindSourceFileIfExternalModule() {
            setExportContextFlag(file);
            if (ts.isExternalModule(file)) {
                bindSourceFileAsExternalModule();
            }
        }
        function bindSourceFileAsExternalModule() {
            bindAnonymousDeclaration(file, 512, "\"" + ts.removeFileExtension(file.fileName) + "\"");
        }
        function bindExportAssignment(node) {
            var boundExpression = node.kind === 234 ? node.expression : node.right;
            if (!container.symbol || !container.symbol.exports) {
                bindAnonymousDeclaration(node, 8388608, getDeclarationName(node));
            }
            else if (boundExpression.kind === 69 && node.kind === 234) {
                declareSymbol(container.symbol.exports, container.symbol, node, 8388608, 107455 | 8388608);
            }
            else {
                declareSymbol(container.symbol.exports, container.symbol, node, 4, 107455 | 8388608);
            }
        }
        function bindGlobalModuleExportDeclaration(node) {
            if (node.modifiers && node.modifiers.length) {
                file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Modifiers_cannot_appear_here));
            }
            if (node.parent.kind !== 255) {
                file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_at_top_level));
                return;
            }
            else {
                var parent_5 = node.parent;
                if (!ts.isExternalModule(parent_5)) {
                    file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_module_files));
                    return;
                }
                if (!parent_5.isDeclarationFile) {
                    file.bindDiagnostics.push(ts.createDiagnosticForNode(node, ts.Diagnostics.Global_module_exports_may_only_appear_in_declaration_files));
                    return;
                }
            }
            file.symbol.globalExports = file.symbol.globalExports || {};
            declareSymbol(file.symbol.globalExports, file.symbol, node, 8388608, 8388608);
        }
        function bindExportDeclaration(node) {
            if (!container.symbol || !container.symbol.exports) {
                bindAnonymousDeclaration(node, 1073741824, getDeclarationName(node));
            }
            else if (!node.exportClause) {
                declareSymbol(container.symbol.exports, container.symbol, node, 1073741824, 0);
            }
        }
        function bindImportClause(node) {
            if (node.name) {
                declareSymbolAndAddToSymbolTable(node, 8388608, 8388608);
            }
        }
        function setCommonJsModuleIndicator(node) {
            if (!file.commonJsModuleIndicator) {
                file.commonJsModuleIndicator = node;
                bindSourceFileAsExternalModule();
            }
        }
        function bindExportsPropertyAssignment(node) {
            setCommonJsModuleIndicator(node);
            declareSymbol(file.symbol.exports, file.symbol, node.left, 4 | 7340032, 0);
        }
        function bindModuleExportsAssignment(node) {
            setCommonJsModuleIndicator(node);
            declareSymbol(file.symbol.exports, file.symbol, node, 4 | 7340032 | 512, 0);
        }
        function bindThisPropertyAssignment(node) {
            if (container.kind === 178 || container.kind === 219) {
                container.symbol.members = container.symbol.members || {};
                declareSymbol(container.symbol.members, container.symbol, node, 4, 107455 & ~4);
            }
        }
        function bindPrototypePropertyAssignment(node) {
            var leftSideOfAssignment = node.left;
            var classPrototype = leftSideOfAssignment.expression;
            var constructorFunction = classPrototype.expression;
            leftSideOfAssignment.parent = node;
            constructorFunction.parent = classPrototype;
            classPrototype.parent = leftSideOfAssignment;
            var funcSymbol = container.locals[constructorFunction.text];
            if (!funcSymbol || !(funcSymbol.flags & 16)) {
                return;
            }
            if (!funcSymbol.members) {
                funcSymbol.members = {};
            }
            declareSymbol(funcSymbol.members, funcSymbol, leftSideOfAssignment, 4, 107455);
        }
        function bindCallExpression(node) {
            if (!file.commonJsModuleIndicator && ts.isRequireCall(node, false)) {
                setCommonJsModuleIndicator(node);
            }
        }
        function bindClassLikeDeclaration(node) {
            if (!ts.isDeclarationFile(file) && !ts.isInAmbientContext(node)) {
                if (ts.getClassExtendsHeritageClauseElement(node) !== undefined) {
                    hasClassExtends = true;
                }
                if (ts.nodeIsDecorated(node)) {
                    hasDecorators = true;
                }
            }
            if (node.kind === 220) {
                bindBlockScopedDeclaration(node, 32, 899519);
            }
            else {
                var bindingName = node.name ? node.name.text : "__class";
                bindAnonymousDeclaration(node, 32, bindingName);
                if (node.name) {
                    classifiableNames[node.name.text] = node.name.text;
                }
            }
            var symbol = node.symbol;
            var prototypeSymbol = createSymbol(4 | 134217728, "prototype");
            if (ts.hasProperty(symbol.exports, prototypeSymbol.name)) {
                if (node.name) {
                    node.name.parent = node;
                }
                file.bindDiagnostics.push(ts.createDiagnosticForNode(symbol.exports[prototypeSymbol.name].declarations[0], ts.Diagnostics.Duplicate_identifier_0, prototypeSymbol.name));
            }
            symbol.exports[prototypeSymbol.name] = prototypeSymbol;
            prototypeSymbol.parent = symbol;
        }
        function bindEnumDeclaration(node) {
            return ts.isConst(node)
                ? bindBlockScopedDeclaration(node, 128, 899967)
                : bindBlockScopedDeclaration(node, 256, 899327);
        }
        function bindVariableDeclarationOrBindingElement(node) {
            if (inStrictMode) {
                checkStrictModeEvalOrArguments(node, node.name);
            }
            if (!ts.isBindingPattern(node.name)) {
                if (ts.isBlockOrCatchScoped(node)) {
                    bindBlockScopedVariableDeclaration(node);
                }
                else if (ts.isParameterDeclaration(node)) {
                    declareSymbolAndAddToSymbolTable(node, 1, 107455);
                }
                else {
                    declareSymbolAndAddToSymbolTable(node, 1, 107454);
                }
            }
        }
        function bindParameter(node) {
            if (!ts.isDeclarationFile(file) &&
                !ts.isInAmbientContext(node) &&
                ts.nodeIsDecorated(node)) {
                hasDecorators = true;
                hasParameterDecorators = true;
            }
            if (inStrictMode) {
                checkStrictModeEvalOrArguments(node, node.name);
            }
            if (ts.isBindingPattern(node.name)) {
                bindAnonymousDeclaration(node, 1, getDestructuringParameterName(node));
            }
            else {
                declareSymbolAndAddToSymbolTable(node, 1, 107455);
            }
            if (ts.isParameterPropertyDeclaration(node)) {
                var classDeclaration = node.parent.parent;
                declareSymbol(classDeclaration.symbol.members, classDeclaration.symbol, node, 4, 107455);
            }
        }
        function bindFunctionDeclaration(node) {
            if (!ts.isDeclarationFile(file) && !ts.isInAmbientContext(node)) {
                if (ts.isAsyncFunctionLike(node)) {
                    hasAsyncFunctions = true;
                }
            }
            checkStrictModeFunctionName(node);
            if (inStrictMode) {
                checkStrictModeFunctionDeclaration(node);
                return bindBlockScopedDeclaration(node, 16, 106927);
            }
            else {
                return declareSymbolAndAddToSymbolTable(node, 16, 106927);
            }
        }
        function bindFunctionExpression(node) {
            if (!ts.isDeclarationFile(file) && !ts.isInAmbientContext(node)) {
                if (ts.isAsyncFunctionLike(node)) {
                    hasAsyncFunctions = true;
                }
            }
            checkStrictModeFunctionName(node);
            var bindingName = node.name ? node.name.text : "__function";
            return bindAnonymousDeclaration(node, 16, bindingName);
        }
        function bindPropertyOrMethodOrAccessor(node, symbolFlags, symbolExcludes) {
            if (!ts.isDeclarationFile(file) && !ts.isInAmbientContext(node)) {
                if (ts.isAsyncFunctionLike(node)) {
                    hasAsyncFunctions = true;
                }
                if (ts.nodeIsDecorated(node)) {
                    hasDecorators = true;
                }
            }
            return ts.hasDynamicName(node)
                ? bindAnonymousDeclaration(node, symbolFlags, "__computed")
                : declareSymbolAndAddToSymbolTable(node, symbolFlags, symbolExcludes);
        }
        function shouldReportErrorOnModuleDeclaration(node) {
            var instanceState = getModuleInstanceState(node);
            return instanceState === 1 || (instanceState === 2 && options.preserveConstEnums);
        }
        function checkUnreachable(node) {
            if (currentFlow.kind !== 0) {
                return false;
            }
            if (currentFlow === unreachableFlow) {
                var reportError = (ts.isStatement(node) && node.kind !== 200) ||
                    node.kind === 220 ||
                    (node.kind === 224 && shouldReportErrorOnModuleDeclaration(node)) ||
                    (node.kind === 223 && (!ts.isConstEnumDeclaration(node) || options.preserveConstEnums));
                if (reportError) {
                    currentFlow = reportedUnreachableFlow;
                    var reportUnreachableCode = !options.allowUnreachableCode &&
                        !ts.isInAmbientContext(node) &&
                        (node.kind !== 199 ||
                            ts.getCombinedNodeFlags(node.declarationList) & 3072 ||
                            ts.forEach(node.declarationList.declarations, function (d) { return d.initializer; }));
                    if (reportUnreachableCode) {
                        errorOnFirstToken(node, ts.Diagnostics.Unreachable_code_detected);
                    }
                }
            }
            return true;
        }
    }
})(ts || (ts = {}));
var ts;
(function (ts) {
    var nextSymbolId = 1;
    var nextNodeId = 1;
    var nextMergeId = 1;
    var nextFlowId = 1;
    function getNodeId(node) {
        if (!node.id) {
            node.id = nextNodeId;
            nextNodeId++;
        }
        return node.id;
    }
    ts.getNodeId = getNodeId;
    ts.checkTime = 0;
    function getSymbolId(symbol) {
        if (!symbol.id) {
            symbol.id = nextSymbolId;
            nextSymbolId++;
        }
        return symbol.id;
    }
    ts.getSymbolId = getSymbolId;
    function createTypeChecker(host, produceDiagnostics) {
        var cancellationToken;
        var Symbol = ts.objectAllocator.getSymbolConstructor();
        var Type = ts.objectAllocator.getTypeConstructor();
        var Signature = ts.objectAllocator.getSignatureConstructor();
        var typeCount = 0;
        var symbolCount = 0;
        var emptyArray = [];
        var emptySymbols = {};
        var compilerOptions = host.getCompilerOptions();
        var languageVersion = compilerOptions.target || 0;
        var modulekind = ts.getEmitModuleKind(compilerOptions);
        var allowSyntheticDefaultImports = typeof compilerOptions.allowSyntheticDefaultImports !== "undefined" ? compilerOptions.allowSyntheticDefaultImports : modulekind === ts.ModuleKind.System;
        var strictNullChecks = compilerOptions.strictNullChecks;
        var emitResolver = createResolver();
        var undefinedSymbol = createSymbol(4 | 67108864, "undefined");
        undefinedSymbol.declarations = [];
        var argumentsSymbol = createSymbol(4 | 67108864, "arguments");
        var checker = {
            getNodeCount: function () { return ts.sum(host.getSourceFiles(), "nodeCount"); },
            getIdentifierCount: function () { return ts.sum(host.getSourceFiles(), "identifierCount"); },
            getSymbolCount: function () { return ts.sum(host.getSourceFiles(), "symbolCount") + symbolCount; },
            getTypeCount: function () { return typeCount; },
            isUndefinedSymbol: function (symbol) { return symbol === undefinedSymbol; },
            isArgumentsSymbol: function (symbol) { return symbol === argumentsSymbol; },
            isUnknownSymbol: function (symbol) { return symbol === unknownSymbol; },
            getDiagnostics: getDiagnostics,
            getGlobalDiagnostics: getGlobalDiagnostics,
            getTypeOfSymbolAtLocation: getTypeOfSymbolAtLocation,
            getSymbolsOfParameterPropertyDeclaration: getSymbolsOfParameterPropertyDeclaration,
            getDeclaredTypeOfSymbol: getDeclaredTypeOfSymbol,
            getPropertiesOfType: getPropertiesOfType,
            getPropertyOfType: getPropertyOfType,
            getSignaturesOfType: getSignaturesOfType,
            getIndexTypeOfType: getIndexTypeOfType,
            getBaseTypes: getBaseTypes,
            getReturnTypeOfSignature: getReturnTypeOfSignature,
            getSymbolsInScope: getSymbolsInScope,
            getSymbolAtLocation: getSymbolAtLocation,
            getShorthandAssignmentValueSymbol: getShorthandAssignmentValueSymbol,
            getExportSpecifierLocalTargetSymbol: getExportSpecifierLocalTargetSymbol,
            getTypeAtLocation: getTypeOfNode,
            getPropertySymbolOfDestructuringAssignment: getPropertySymbolOfDestructuringAssignment,
            typeToString: typeToString,
            getSymbolDisplayBuilder: getSymbolDisplayBuilder,
            symbolToString: symbolToString,
            getAugmentedPropertiesOfType: getAugmentedPropertiesOfType,
            getRootSymbols: getRootSymbols,
            getContextualType: getContextualType,
            getFullyQualifiedName: getFullyQualifiedName,
            getResolvedSignature: getResolvedSignature,
            getConstantValue: getConstantValue,
            isValidPropertyAccess: isValidPropertyAccess,
            getSignatureFromDeclaration: getSignatureFromDeclaration,
            isImplementationOfOverload: isImplementationOfOverload,
            getAliasedSymbol: resolveAlias,
            getEmitResolver: getEmitResolver,
            getExportsOfModule: getExportsOfModuleAsArray,
            getJsxElementAttributesType: getJsxElementAttributesType,
            getJsxIntrinsicTagNames: getJsxIntrinsicTagNames,
            isOptionalParameter: isOptionalParameter
        };
        var unknownSymbol = createSymbol(4 | 67108864, "unknown");
        var resolvingSymbol = createSymbol(67108864, "__resolving__");
        var nullableWideningFlags = strictNullChecks ? 0 : 2097152;
        var anyType = createIntrinsicType(1, "any");
        var stringType = createIntrinsicType(2, "string");
        var numberType = createIntrinsicType(4, "number");
        var booleanType = createIntrinsicType(8, "boolean");
        var esSymbolType = createIntrinsicType(16777216, "symbol");
        var voidType = createIntrinsicType(16, "void");
        var undefinedType = createIntrinsicType(32 | nullableWideningFlags, "undefined");
        var nullType = createIntrinsicType(64 | nullableWideningFlags, "null");
        var emptyArrayElementType = createIntrinsicType(32 | 2097152, "undefined");
        var unknownType = createIntrinsicType(1, "unknown");
        var emptyObjectType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
        var emptyUnionType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
        var emptyGenericType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
        emptyGenericType.instantiations = {};
        var anyFunctionType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
        anyFunctionType.flags |= 8388608;
        var noConstraintType = createAnonymousType(undefined, emptySymbols, emptyArray, emptyArray, undefined, undefined);
        var anySignature = createSignature(undefined, undefined, undefined, emptyArray, anyType, undefined, 0, false, false);
        var unknownSignature = createSignature(undefined, undefined, undefined, emptyArray, unknownType, undefined, 0, false, false);
        var enumNumberIndexInfo = createIndexInfo(stringType, true);
        var globals = {};
        var getGlobalESSymbolConstructorSymbol;
        var getGlobalPromiseConstructorSymbol;
        var globalObjectType;
        var globalFunctionType;
        var globalArrayType;
        var globalReadonlyArrayType;
        var globalStringType;
        var globalNumberType;
        var globalBooleanType;
        var globalRegExpType;
        var anyArrayType;
        var anyReadonlyArrayType;
        var getGlobalTemplateStringsArrayType;
        var getGlobalESSymbolType;
        var getGlobalIterableType;
        var getGlobalIteratorType;
        var getGlobalIterableIteratorType;
        var getGlobalClassDecoratorType;
        var getGlobalParameterDecoratorType;
        var getGlobalPropertyDecoratorType;
        var getGlobalMethodDecoratorType;
        var getGlobalTypedPropertyDescriptorType;
        var getGlobalPromiseType;
        var tryGetGlobalPromiseType;
        var getGlobalPromiseLikeType;
        var getInstantiatedGlobalPromiseLikeType;
        var getGlobalPromiseConstructorLikeType;
        var getGlobalThenableType;
        var jsxElementClassType;
        var deferredNodes;
        var flowStackStart = 0;
        var flowStackCount = 0;
        var tupleTypes = {};
        var unionTypes = {};
        var intersectionTypes = {};
        var stringLiteralTypes = {};
        var resolutionTargets = [];
        var resolutionResults = [];
        var resolutionPropertyNames = [];
        var mergedSymbols = [];
        var symbolLinks = [];
        var nodeLinks = [];
        var flowTypeCaches = [];
        var flowStackNodes = [];
        var flowStackCacheKeys = [];
        var potentialThisCollisions = [];
        var awaitedTypeStack = [];
        var diagnostics = ts.createDiagnosticCollection();
        var typeofEQFacts = {
            "string": 1,
            "number": 2,
            "boolean": 4,
            "symbol": 8,
            "undefined": 16384,
            "object": 16,
            "function": 32
        };
        var typeofNEFacts = {
            "string": 128,
            "number": 256,
            "boolean": 512,
            "symbol": 1024,
            "undefined": 131072,
            "object": 2048,
            "function": 4096
        };
        var typeofTypesByName = {
            "string": stringType,
            "number": numberType,
            "boolean": booleanType,
            "symbol": esSymbolType,
            "undefined": undefinedType
        };
        var jsxElementType;
        var jsxTypes = {};
        var JsxNames = {
            JSX: "JSX",
            IntrinsicElements: "IntrinsicElements",
            ElementClass: "ElementClass",
            ElementAttributesPropertyNameContainer: "ElementAttributesProperty",
            Element: "Element",
            IntrinsicAttributes: "IntrinsicAttributes",
            IntrinsicClassAttributes: "IntrinsicClassAttributes"
        };
        var subtypeRelation = {};
        var assignableRelation = {};
        var comparableRelation = {};
        var identityRelation = {};
        var _displayBuilder;
        var builtinGlobals = (_a = {},
            _a[undefinedSymbol.name] = undefinedSymbol,
            _a
        );
        initializeTypeChecker();
        return checker;
        function getEmitResolver(sourceFile, cancellationToken) {
            getDiagnostics(sourceFile, cancellationToken);
            return emitResolver;
        }
        function error(location, message, arg0, arg1, arg2) {
            var diagnostic = location
                ? ts.createDiagnosticForNode(location, message, arg0, arg1, arg2)
                : ts.createCompilerDiagnostic(message, arg0, arg1, arg2);
            diagnostics.add(diagnostic);
        }
        function createSymbol(flags, name) {
            symbolCount++;
            return new Symbol(flags, name);
        }
        function getExcludedSymbolFlags(flags) {
            var result = 0;
            if (flags & 2)
                result |= 107455;
            if (flags & 1)
                result |= 107454;
            if (flags & 4)
                result |= 107455;
            if (flags & 8)
                result |= 107455;
            if (flags & 16)
                result |= 106927;
            if (flags & 32)
                result |= 899519;
            if (flags & 64)
                result |= 792960;
            if (flags & 256)
                result |= 899327;
            if (flags & 128)
                result |= 899967;
            if (flags & 512)
                result |= 106639;
            if (flags & 8192)
                result |= 99263;
            if (flags & 32768)
                result |= 41919;
            if (flags & 65536)
                result |= 74687;
            if (flags & 262144)
                result |= 530912;
            if (flags & 524288)
                result |= 793056;
            if (flags & 8388608)
                result |= 8388608;
            return result;
        }
        function recordMergedSymbol(target, source) {
            if (!source.mergeId) {
                source.mergeId = nextMergeId;
                nextMergeId++;
            }
            mergedSymbols[source.mergeId] = target;
        }
        function cloneSymbol(symbol) {
            var result = createSymbol(symbol.flags | 33554432, symbol.name);
            result.declarations = symbol.declarations.slice(0);
            result.parent = symbol.parent;
            if (symbol.valueDeclaration)
                result.valueDeclaration = symbol.valueDeclaration;
            if (symbol.constEnumOnlyModule)
                result.constEnumOnlyModule = true;
            if (symbol.members)
                result.members = cloneSymbolTable(symbol.members);
            if (symbol.exports)
                result.exports = cloneSymbolTable(symbol.exports);
            recordMergedSymbol(result, symbol);
            return result;
        }
        function mergeSymbol(target, source) {
            if (!(target.flags & getExcludedSymbolFlags(source.flags))) {
                if (source.flags & 512 && target.flags & 512 && target.constEnumOnlyModule && !source.constEnumOnlyModule) {
                    target.constEnumOnlyModule = false;
                }
                target.flags |= source.flags;
                if (source.valueDeclaration &&
                    (!target.valueDeclaration ||
                        (target.valueDeclaration.kind === 224 && source.valueDeclaration.kind !== 224))) {
                    target.valueDeclaration = source.valueDeclaration;
                }
                ts.forEach(source.declarations, function (node) {
                    target.declarations.push(node);
                });
                if (source.members) {
                    if (!target.members)
                        target.members = {};
                    mergeSymbolTable(target.members, source.members);
                }
                if (source.exports) {
                    if (!target.exports)
                        target.exports = {};
                    mergeSymbolTable(target.exports, source.exports);
                }
                recordMergedSymbol(target, source);
            }
            else {
                var message_2 = target.flags & 2 || source.flags & 2
                    ? ts.Diagnostics.Cannot_redeclare_block_scoped_variable_0 : ts.Diagnostics.Duplicate_identifier_0;
                ts.forEach(source.declarations, function (node) {
                    error(node.name ? node.name : node, message_2, symbolToString(source));
                });
                ts.forEach(target.declarations, function (node) {
                    error(node.name ? node.name : node, message_2, symbolToString(source));
                });
            }
        }
        function cloneSymbolTable(symbolTable) {
            var result = {};
            for (var id in symbolTable) {
                if (ts.hasProperty(symbolTable, id)) {
                    result[id] = symbolTable[id];
                }
            }
            return result;
        }
        function mergeSymbolTable(target, source) {
            for (var id in source) {
                if (ts.hasProperty(source, id)) {
                    if (!ts.hasProperty(target, id)) {
                        target[id] = source[id];
                    }
                    else {
                        var symbol = target[id];
                        if (!(symbol.flags & 33554432)) {
                            target[id] = symbol = cloneSymbol(symbol);
                        }
                        mergeSymbol(symbol, source[id]);
                    }
                }
            }
        }
        function mergeModuleAugmentation(moduleName) {
            var moduleAugmentation = moduleName.parent;
            if (moduleAugmentation.symbol.declarations[0] !== moduleAugmentation) {
                ts.Debug.assert(moduleAugmentation.symbol.declarations.length > 1);
                return;
            }
            if (ts.isGlobalScopeAugmentation(moduleAugmentation)) {
                mergeSymbolTable(globals, moduleAugmentation.symbol.exports);
            }
            else {
                var moduleNotFoundError = !ts.isInAmbientContext(moduleName.parent.parent)
                    ? ts.Diagnostics.Invalid_module_name_in_augmentation_module_0_cannot_be_found
                    : undefined;
                var mainModule = resolveExternalModuleNameWorker(moduleName, moduleName, moduleNotFoundError);
                if (!mainModule) {
                    return;
                }
                mainModule = resolveExternalModuleSymbol(mainModule);
                if (mainModule.flags & 1536) {
                    mainModule = mainModule.flags & 33554432 ? mainModule : cloneSymbol(mainModule);
                    mergeSymbol(mainModule, moduleAugmentation.symbol);
                }
                else {
                    error(moduleName, ts.Diagnostics.Cannot_augment_module_0_because_it_resolves_to_a_non_module_entity, moduleName.text);
                }
            }
        }
        function addToSymbolTable(target, source, message) {
            for (var id in source) {
                if (ts.hasProperty(source, id)) {
                    if (ts.hasProperty(target, id)) {
                        ts.forEach(target[id].declarations, addDeclarationDiagnostic(id, message));
                    }
                    else {
                        target[id] = source[id];
                    }
                }
            }
            function addDeclarationDiagnostic(id, message) {
                return function (declaration) { return diagnostics.add(ts.createDiagnosticForNode(declaration, message, id)); };
            }
        }
        function getSymbolLinks(symbol) {
            if (symbol.flags & 67108864)
                return symbol;
            var id = getSymbolId(symbol);
            return symbolLinks[id] || (symbolLinks[id] = {});
        }
        function getNodeLinks(node) {
            var nodeId = getNodeId(node);
            return nodeLinks[nodeId] || (nodeLinks[nodeId] = {});
        }
        function isGlobalSourceFile(node) {
            return node.kind === 255 && !ts.isExternalOrCommonJsModule(node);
        }
        function getSymbol(symbols, name, meaning) {
            if (meaning && ts.hasProperty(symbols, name)) {
                var symbol = symbols[name];
                ts.Debug.assert((symbol.flags & 16777216) === 0, "Should never get an instantiated symbol here.");
                if (symbol.flags & meaning) {
                    return symbol;
                }
                if (symbol.flags & 8388608) {
                    var target = resolveAlias(symbol);
                    if (target === unknownSymbol || target.flags & meaning) {
                        return symbol;
                    }
                }
            }
        }
        function getSymbolsOfParameterPropertyDeclaration(parameter, parameterName) {
            var constructorDeclaration = parameter.parent;
            var classDeclaration = parameter.parent.parent;
            var parameterSymbol = getSymbol(constructorDeclaration.locals, parameterName, 107455);
            var propertySymbol = getSymbol(classDeclaration.symbol.members, parameterName, 107455);
            if (parameterSymbol && propertySymbol) {
                return [parameterSymbol, propertySymbol];
            }
            ts.Debug.fail("There should exist two symbols, one as property declaration and one as parameter declaration");
        }
        function isBlockScopedNameDeclaredBeforeUse(declaration, usage) {
            var declarationFile = ts.getSourceFileOfNode(declaration);
            var useFile = ts.getSourceFileOfNode(usage);
            if (declarationFile !== useFile) {
                if (modulekind || (!compilerOptions.outFile && !compilerOptions.out)) {
                    return true;
                }
                var sourceFiles = host.getSourceFiles();
                return ts.indexOf(sourceFiles, declarationFile) <= ts.indexOf(sourceFiles, useFile);
            }
            if (declaration.pos <= usage.pos) {
                return declaration.kind !== 217 ||
                    !isImmediatelyUsedInInitializerOfBlockScopedVariable(declaration, usage);
            }
            return isUsedInFunctionOrNonStaticProperty(declaration, usage);
            function isImmediatelyUsedInInitializerOfBlockScopedVariable(declaration, usage) {
                var container = ts.getEnclosingBlockScopeContainer(declaration);
                if (declaration.parent.parent.kind === 199 ||
                    declaration.parent.parent.kind === 205) {
                    return isSameScopeDescendentOf(usage, declaration, container);
                }
                else if (declaration.parent.parent.kind === 207 ||
                    declaration.parent.parent.kind === 206) {
                    var expression = declaration.parent.parent.expression;
                    return isSameScopeDescendentOf(usage, expression, container);
                }
            }
            function isUsedInFunctionOrNonStaticProperty(declaration, usage) {
                var container = ts.getEnclosingBlockScopeContainer(declaration);
                var current = usage;
                while (current) {
                    if (current === container) {
                        return false;
                    }
                    if (ts.isFunctionLike(current)) {
                        return true;
                    }
                    var initializerOfNonStaticProperty = current.parent &&
                        current.parent.kind === 144 &&
                        (current.parent.flags & 32) === 0 &&
                        current.parent.initializer === current;
                    if (initializerOfNonStaticProperty) {
                        return true;
                    }
                    current = current.parent;
                }
                return false;
            }
        }
        function resolveName(location, name, meaning, nameNotFoundMessage, nameArg) {
            var result;
            var lastLocation;
            var propertyWithInvalidInitializer;
            var errorLocation = location;
            var grandparent;
            loop: while (location) {
                if (location.locals && !isGlobalSourceFile(location)) {
                    if (result = getSymbol(location.locals, name, meaning)) {
                        var useResult = true;
                        if (ts.isFunctionLike(location) && lastLocation && lastLocation !== location.body) {
                            if (meaning & result.flags & 793056 && lastLocation.kind !== 272) {
                                useResult = result.flags & 262144
                                    ? lastLocation === location.type ||
                                        lastLocation.kind === 141 ||
                                        lastLocation.kind === 140
                                    : false;
                            }
                            if (meaning & 107455 && result.flags & 1) {
                                useResult =
                                    lastLocation.kind === 141 ||
                                        (lastLocation === location.type &&
                                            result.valueDeclaration.kind === 141);
                            }
                        }
                        if (useResult) {
                            break loop;
                        }
                        else {
                            result = undefined;
                        }
                    }
                }
                switch (location.kind) {
                    case 255:
                        if (!ts.isExternalOrCommonJsModule(location))
                            break;
                    case 224:
                        var moduleExports = getSymbolOfNode(location).exports;
                        if (location.kind === 255 || ts.isAmbientModule(location)) {
                            if (result = moduleExports["default"]) {
                                var localSymbol = ts.getLocalSymbolForExportDefault(result);
                                if (localSymbol && (result.flags & meaning) && localSymbol.name === name) {
                                    break loop;
                                }
                                result = undefined;
                            }
                            if (ts.hasProperty(moduleExports, name) &&
                                moduleExports[name].flags === 8388608 &&
                                ts.getDeclarationOfKind(moduleExports[name], 237)) {
                                break;
                            }
                        }
                        if (result = getSymbol(moduleExports, name, meaning & 8914931)) {
                            break loop;
                        }
                        break;
                    case 223:
                        if (result = getSymbol(getSymbolOfNode(location).exports, name, meaning & 8)) {
                            break loop;
                        }
                        break;
                    case 144:
                    case 143:
                        if (ts.isClassLike(location.parent) && !(location.flags & 32)) {
                            var ctor = findConstructorDeclaration(location.parent);
                            if (ctor && ctor.locals) {
                                if (getSymbol(ctor.locals, name, meaning & 107455)) {
                                    propertyWithInvalidInitializer = location;
                                }
                            }
                        }
                        break;
                    case 220:
                    case 191:
                    case 221:
                        if (result = getSymbol(getSymbolOfNode(location).members, name, meaning & 793056)) {
                            if (lastLocation && lastLocation.flags & 32) {
                                error(errorLocation, ts.Diagnostics.Static_members_cannot_reference_class_type_parameters);
                                return undefined;
                            }
                            break loop;
                        }
                        if (location.kind === 191 && meaning & 32) {
                            var className = location.name;
                            if (className && name === className.text) {
                                result = location.symbol;
                                break loop;
                            }
                        }
                        break;
                    case 139:
                        grandparent = location.parent.parent;
                        if (ts.isClassLike(grandparent) || grandparent.kind === 221) {
                            if (result = getSymbol(getSymbolOfNode(grandparent).members, name, meaning & 793056)) {
                                error(errorLocation, ts.Diagnostics.A_computed_property_name_cannot_reference_a_type_parameter_from_its_containing_type);
                                return undefined;
                            }
                        }
                        break;
                    case 146:
                    case 145:
                    case 147:
                    case 148:
                    case 149:
                    case 219:
                    case 179:
                        if (meaning & 3 && name === "arguments") {
                            result = argumentsSymbol;
                            break loop;
                        }
                        break;
                    case 178:
                        if (meaning & 3 && name === "arguments") {
                            result = argumentsSymbol;
                            break loop;
                        }
                        if (meaning & 16) {
                            var functionName = location.name;
                            if (functionName && name === functionName.text) {
                                result = location.symbol;
                                break loop;
                            }
                        }
                        break;
                    case 142:
                        if (location.parent && location.parent.kind === 141) {
                            location = location.parent;
                        }
                        if (location.parent && ts.isClassElement(location.parent)) {
                            location = location.parent;
                        }
                        break;
                }
                lastLocation = location;
                location = location.parent;
            }
            if (!result) {
                result = getSymbol(globals, name, meaning);
            }
            if (!result) {
                if (nameNotFoundMessage) {
                    if (!checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg)) {
                        error(errorLocation, nameNotFoundMessage, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                    }
                }
                return undefined;
            }
            if (nameNotFoundMessage) {
                if (propertyWithInvalidInitializer) {
                    var propertyName = propertyWithInvalidInitializer.name;
                    error(errorLocation, ts.Diagnostics.Initializer_of_instance_member_variable_0_cannot_reference_identifier_1_declared_in_the_constructor, ts.declarationNameToString(propertyName), typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                    return undefined;
                }
                if (meaning & 2) {
                    var exportOrLocalSymbol = getExportSymbolOfValueSymbolIfExported(result);
                    if (exportOrLocalSymbol.flags & 2) {
                        checkResolvedBlockScopedVariable(exportOrLocalSymbol, errorLocation);
                    }
                }
            }
            return result;
        }
        function checkAndReportErrorForMissingPrefix(errorLocation, name, nameArg) {
            if (!errorLocation || (errorLocation.kind === 69 && (isTypeReferenceIdentifier(errorLocation)) || isInTypeQuery(errorLocation))) {
                return false;
            }
            var container = ts.getThisContainer(errorLocation, true);
            var location = container;
            while (location) {
                if (ts.isClassLike(location.parent)) {
                    var classSymbol = getSymbolOfNode(location.parent);
                    if (!classSymbol) {
                        break;
                    }
                    var constructorType = getTypeOfSymbol(classSymbol);
                    if (getPropertyOfType(constructorType, name)) {
                        error(errorLocation, ts.Diagnostics.Cannot_find_name_0_Did_you_mean_the_static_member_1_0, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg), symbolToString(classSymbol));
                        return true;
                    }
                    if (location === container && !(location.flags & 32)) {
                        var instanceType = getDeclaredTypeOfSymbol(classSymbol).thisType;
                        if (getPropertyOfType(instanceType, name)) {
                            error(errorLocation, ts.Diagnostics.Cannot_find_name_0_Did_you_mean_the_instance_member_this_0, typeof nameArg === "string" ? nameArg : ts.declarationNameToString(nameArg));
                            return true;
                        }
                    }
                }
                location = location.parent;
            }
            return false;
        }
        function checkResolvedBlockScopedVariable(result, errorLocation) {
            ts.Debug.assert((result.flags & 2) !== 0);
            var declaration = ts.forEach(result.declarations, function (d) { return ts.isBlockOrCatchScoped(d) ? d : undefined; });
            ts.Debug.assert(declaration !== undefined, "Block-scoped variable declaration is undefined");
            if (!isBlockScopedNameDeclaredBeforeUse(ts.getAncestor(declaration, 217), errorLocation)) {
                error(errorLocation, ts.Diagnostics.Block_scoped_variable_0_used_before_its_declaration, ts.declarationNameToString(declaration.name));
            }
        }
        function isSameScopeDescendentOf(initial, parent, stopAt) {
            if (!parent) {
                return false;
            }
            for (var current = initial; current && current !== stopAt && !ts.isFunctionLike(current); current = current.parent) {
                if (current === parent) {
                    return true;
                }
            }
            return false;
        }
        function getAnyImportSyntax(node) {
            if (ts.isAliasSymbolDeclaration(node)) {
                if (node.kind === 228) {
                    return node;
                }
                while (node && node.kind !== 229) {
                    node = node.parent;
                }
                return node;
            }
        }
        function getDeclarationOfAliasSymbol(symbol) {
            return ts.forEach(symbol.declarations, function (d) { return ts.isAliasSymbolDeclaration(d) ? d : undefined; });
        }
        function getTargetOfImportEqualsDeclaration(node) {
            if (node.moduleReference.kind === 239) {
                return resolveExternalModuleSymbol(resolveExternalModuleName(node, ts.getExternalModuleImportEqualsDeclarationExpression(node)));
            }
            return getSymbolOfPartOfRightHandSideOfImportEquals(node.moduleReference, node);
        }
        function getTargetOfImportClause(node) {
            var moduleSymbol = resolveExternalModuleName(node, node.parent.moduleSpecifier);
            if (moduleSymbol) {
                var exportDefaultSymbol = moduleSymbol.exports["export="] ?
                    getPropertyOfType(getTypeOfSymbol(moduleSymbol.exports["export="]), "default") :
                    resolveSymbol(moduleSymbol.exports["default"]);
                if (!exportDefaultSymbol && !allowSyntheticDefaultImports) {
                    error(node.name, ts.Diagnostics.Module_0_has_no_default_export, symbolToString(moduleSymbol));
                }
                else if (!exportDefaultSymbol && allowSyntheticDefaultImports) {
                    return resolveExternalModuleSymbol(moduleSymbol) || resolveSymbol(moduleSymbol);
                }
                return exportDefaultSymbol;
            }
        }
        function getTargetOfNamespaceImport(node) {
            var moduleSpecifier = node.parent.parent.moduleSpecifier;
            return resolveESModuleSymbol(resolveExternalModuleName(node, moduleSpecifier), moduleSpecifier);
        }
        function combineValueAndTypeSymbols(valueSymbol, typeSymbol) {
            if (valueSymbol.flags & (793056 | 1536)) {
                return valueSymbol;
            }
            var result = createSymbol(valueSymbol.flags | typeSymbol.flags, valueSymbol.name);
            result.declarations = ts.concatenate(valueSymbol.declarations, typeSymbol.declarations);
            result.parent = valueSymbol.parent || typeSymbol.parent;
            if (valueSymbol.valueDeclaration)
                result.valueDeclaration = valueSymbol.valueDeclaration;
            if (typeSymbol.members)
                result.members = typeSymbol.members;
            if (valueSymbol.exports)
                result.exports = valueSymbol.exports;
            return result;
        }
        function getExportOfModule(symbol, name) {
            if (symbol.flags & 1536) {
                var exports = getExportsOfSymbol(symbol);
                if (ts.hasProperty(exports, name)) {
                    return resolveSymbol(exports[name]);
                }
            }
        }
        function getPropertyOfVariable(symbol, name) {
            if (symbol.flags & 3) {
                var typeAnnotation = symbol.valueDeclaration.type;
                if (typeAnnotation) {
                    return resolveSymbol(getPropertyOfType(getTypeFromTypeNode(typeAnnotation), name));
                }
            }
        }
        function getExternalModuleMember(node, specifier) {
            var moduleSymbol = resolveExternalModuleName(node, node.moduleSpecifier);
            var targetSymbol = resolveESModuleSymbol(moduleSymbol, node.moduleSpecifier);
            if (targetSymbol) {
                var name_9 = specifier.propertyName || specifier.name;
                if (name_9.text) {
                    var symbolFromVariable = void 0;
                    if (moduleSymbol && moduleSymbol.exports && moduleSymbol.exports["export="]) {
                        symbolFromVariable = getPropertyOfType(getTypeOfSymbol(targetSymbol), name_9.text);
                    }
                    else {
                        symbolFromVariable = getPropertyOfVariable(targetSymbol, name_9.text);
                    }
                    var symbolFromModule = getExportOfModule(targetSymbol, name_9.text);
                    var symbol = symbolFromModule && symbolFromVariable ?
                        combineValueAndTypeSymbols(symbolFromVariable, symbolFromModule) :
                        symbolFromModule || symbolFromVariable;
                    if (!symbol) {
                        error(name_9, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(moduleSymbol), ts.declarationNameToString(name_9));
                    }
                    return symbol;
                }
            }
        }
        function getTargetOfImportSpecifier(node) {
            return getExternalModuleMember(node.parent.parent.parent, node);
        }
        function getTargetOfGlobalModuleExportDeclaration(node) {
            return resolveExternalModuleSymbol(node.parent.symbol);
        }
        function getTargetOfExportSpecifier(node) {
            return node.parent.parent.moduleSpecifier ?
                getExternalModuleMember(node.parent.parent, node) :
                resolveEntityName(node.propertyName || node.name, 107455 | 793056 | 1536);
        }
        function getTargetOfExportAssignment(node) {
            return resolveEntityName(node.expression, 107455 | 793056 | 1536);
        }
        function getTargetOfAliasDeclaration(node) {
            switch (node.kind) {
                case 228:
                    return getTargetOfImportEqualsDeclaration(node);
                case 230:
                    return getTargetOfImportClause(node);
                case 231:
                    return getTargetOfNamespaceImport(node);
                case 233:
                    return getTargetOfImportSpecifier(node);
                case 237:
                    return getTargetOfExportSpecifier(node);
                case 234:
                    return getTargetOfExportAssignment(node);
                case 227:
                    return getTargetOfGlobalModuleExportDeclaration(node);
            }
        }
        function resolveSymbol(symbol) {
            return symbol && symbol.flags & 8388608 && !(symbol.flags & (107455 | 793056 | 1536)) ? resolveAlias(symbol) : symbol;
        }
        function resolveAlias(symbol) {
            ts.Debug.assert((symbol.flags & 8388608) !== 0, "Should only get Alias here.");
            var links = getSymbolLinks(symbol);
            if (!links.target) {
                links.target = resolvingSymbol;
                var node = getDeclarationOfAliasSymbol(symbol);
                var target = getTargetOfAliasDeclaration(node);
                if (links.target === resolvingSymbol) {
                    links.target = target || unknownSymbol;
                }
                else {
                    error(node, ts.Diagnostics.Circular_definition_of_import_alias_0, symbolToString(symbol));
                }
            }
            else if (links.target === resolvingSymbol) {
                links.target = unknownSymbol;
            }
            return links.target;
        }
        function markExportAsReferenced(node) {
            var symbol = getSymbolOfNode(node);
            var target = resolveAlias(symbol);
            if (target) {
                var markAlias = (target === unknownSymbol && compilerOptions.isolatedModules) ||
                    (target !== unknownSymbol && (target.flags & 107455) && !isConstEnumOrConstEnumOnlyModule(target));
                if (markAlias) {
                    markAliasSymbolAsReferenced(symbol);
                }
            }
        }
        function markAliasSymbolAsReferenced(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.referenced) {
                links.referenced = true;
                var node = getDeclarationOfAliasSymbol(symbol);
                if (node.kind === 234) {
                    checkExpressionCached(node.expression);
                }
                else if (node.kind === 237) {
                    checkExpressionCached(node.propertyName || node.name);
                }
                else if (ts.isInternalModuleImportEqualsDeclaration(node)) {
                    checkExpressionCached(node.moduleReference);
                }
            }
        }
        function getSymbolOfPartOfRightHandSideOfImportEquals(entityName, importDeclaration) {
            if (!importDeclaration) {
                importDeclaration = ts.getAncestor(entityName, 228);
                ts.Debug.assert(importDeclaration !== undefined);
            }
            if (entityName.kind === 69 && ts.isRightSideOfQualifiedNameOrPropertyAccess(entityName)) {
                entityName = entityName.parent;
            }
            if (entityName.kind === 69 || entityName.parent.kind === 138) {
                return resolveEntityName(entityName, 1536);
            }
            else {
                ts.Debug.assert(entityName.parent.kind === 228);
                return resolveEntityName(entityName, 107455 | 793056 | 1536);
            }
        }
        function getFullyQualifiedName(symbol) {
            return symbol.parent ? getFullyQualifiedName(symbol.parent) + "." + symbolToString(symbol) : symbolToString(symbol);
        }
        function resolveEntityName(name, meaning, ignoreErrors) {
            if (ts.nodeIsMissing(name)) {
                return undefined;
            }
            var symbol;
            if (name.kind === 69) {
                var message = meaning === 1536 ? ts.Diagnostics.Cannot_find_namespace_0 : ts.Diagnostics.Cannot_find_name_0;
                symbol = resolveName(name, name.text, meaning, ignoreErrors ? undefined : message, name);
                if (!symbol) {
                    return undefined;
                }
            }
            else if (name.kind === 138 || name.kind === 171) {
                var left = name.kind === 138 ? name.left : name.expression;
                var right = name.kind === 138 ? name.right : name.name;
                var namespace = resolveEntityName(left, 1536, ignoreErrors);
                if (!namespace || namespace === unknownSymbol || ts.nodeIsMissing(right)) {
                    return undefined;
                }
                symbol = getSymbol(getExportsOfSymbol(namespace), right.text, meaning);
                if (!symbol) {
                    if (!ignoreErrors) {
                        error(right, ts.Diagnostics.Module_0_has_no_exported_member_1, getFullyQualifiedName(namespace), ts.declarationNameToString(right));
                    }
                    return undefined;
                }
            }
            else {
                ts.Debug.fail("Unknown entity name kind.");
            }
            ts.Debug.assert((symbol.flags & 16777216) === 0, "Should never get an instantiated symbol here.");
            return symbol.flags & meaning ? symbol : resolveAlias(symbol);
        }
        function resolveExternalModuleName(location, moduleReferenceExpression) {
            return resolveExternalModuleNameWorker(location, moduleReferenceExpression, ts.Diagnostics.Cannot_find_module_0);
        }
        function resolveExternalModuleNameWorker(location, moduleReferenceExpression, moduleNotFoundError) {
            if (moduleReferenceExpression.kind !== 9) {
                return;
            }
            var moduleReferenceLiteral = moduleReferenceExpression;
            var moduleName = ts.escapeIdentifier(moduleReferenceLiteral.text);
            if (moduleName === undefined) {
                return;
            }
            var isRelative = ts.isExternalModuleNameRelative(moduleName);
            if (!isRelative) {
                var symbol = getSymbol(globals, '"' + moduleName + '"', 512);
                if (symbol) {
                    return getMergedSymbol(symbol);
                }
            }
            var resolvedModule = ts.getResolvedModule(ts.getSourceFileOfNode(location), moduleReferenceLiteral.text);
            var sourceFile = resolvedModule && host.getSourceFile(resolvedModule.resolvedFileName);
            if (sourceFile) {
                if (sourceFile.symbol) {
                    return getMergedSymbol(sourceFile.symbol);
                }
                if (moduleNotFoundError) {
                    error(moduleReferenceLiteral, ts.Diagnostics.File_0_is_not_a_module, sourceFile.fileName);
                }
                return undefined;
            }
            if (moduleNotFoundError) {
                error(moduleReferenceLiteral, moduleNotFoundError, moduleName);
            }
            return undefined;
        }
        function resolveExternalModuleSymbol(moduleSymbol) {
            return moduleSymbol && getMergedSymbol(resolveSymbol(moduleSymbol.exports["export="])) || moduleSymbol;
        }
        function resolveESModuleSymbol(moduleSymbol, moduleReferenceExpression) {
            var symbol = resolveExternalModuleSymbol(moduleSymbol);
            if (symbol && !(symbol.flags & (1536 | 3))) {
                error(moduleReferenceExpression, ts.Diagnostics.Module_0_resolves_to_a_non_module_entity_and_cannot_be_imported_using_this_construct, symbolToString(moduleSymbol));
                symbol = undefined;
            }
            return symbol;
        }
        function hasExportAssignmentSymbol(moduleSymbol) {
            return moduleSymbol.exports["export="] !== undefined;
        }
        function getExportsOfModuleAsArray(moduleSymbol) {
            return symbolsToArray(getExportsOfModule(moduleSymbol));
        }
        function getExportsOfSymbol(symbol) {
            return symbol.flags & 1536 ? getExportsOfModule(symbol) : symbol.exports || emptySymbols;
        }
        function getExportsOfModule(moduleSymbol) {
            var links = getSymbolLinks(moduleSymbol);
            return links.resolvedExports || (links.resolvedExports = getExportsForModule(moduleSymbol));
        }
        function extendExportSymbols(target, source, lookupTable, exportNode) {
            for (var id in source) {
                if (id !== "default" && !ts.hasProperty(target, id)) {
                    target[id] = source[id];
                    if (lookupTable && exportNode) {
                        lookupTable[id] = {
                            specifierText: ts.getTextOfNode(exportNode.moduleSpecifier)
                        };
                    }
                }
                else if (lookupTable && exportNode && id !== "default" && ts.hasProperty(target, id) && resolveSymbol(target[id]) !== resolveSymbol(source[id])) {
                    if (!lookupTable[id].exportsWithDuplicate) {
                        lookupTable[id].exportsWithDuplicate = [exportNode];
                    }
                    else {
                        lookupTable[id].exportsWithDuplicate.push(exportNode);
                    }
                }
            }
        }
        function getExportsForModule(moduleSymbol) {
            var visitedSymbols = [];
            return visit(moduleSymbol) || moduleSymbol.exports;
            function visit(symbol) {
                if (!(symbol && symbol.flags & 1952 && !ts.contains(visitedSymbols, symbol))) {
                    return;
                }
                visitedSymbols.push(symbol);
                var symbols = cloneSymbolTable(symbol.exports);
                var exportStars = symbol.exports["__export"];
                if (exportStars) {
                    var nestedSymbols = {};
                    var lookupTable = {};
                    for (var _i = 0, _a = exportStars.declarations; _i < _a.length; _i++) {
                        var node = _a[_i];
                        var resolvedModule = resolveExternalModuleName(node, node.moduleSpecifier);
                        var exportedSymbols = visit(resolvedModule);
                        extendExportSymbols(nestedSymbols, exportedSymbols, lookupTable, node);
                    }
                    for (var id in lookupTable) {
                        var exportsWithDuplicate = lookupTable[id].exportsWithDuplicate;
                        if (id === "export=" || !(exportsWithDuplicate && exportsWithDuplicate.length) || ts.hasProperty(symbols, id)) {
                            continue;
                        }
                        for (var _b = 0, exportsWithDuplicate_1 = exportsWithDuplicate; _b < exportsWithDuplicate_1.length; _b++) {
                            var node = exportsWithDuplicate_1[_b];
                            diagnostics.add(ts.createDiagnosticForNode(node, ts.Diagnostics.Module_0_has_already_exported_a_member_named_1_Consider_explicitly_re_exporting_to_resolve_the_ambiguity, lookupTable[id].specifierText, id));
                        }
                    }
                    extendExportSymbols(symbols, nestedSymbols);
                }
                return symbols;
            }
        }
        function getMergedSymbol(symbol) {
            var merged;
            return symbol && symbol.mergeId && (merged = mergedSymbols[symbol.mergeId]) ? merged : symbol;
        }
        function getSymbolOfNode(node) {
            return getMergedSymbol(node.symbol);
        }
        function getParentOfSymbol(symbol) {
            return getMergedSymbol(symbol.parent);
        }
        function getExportSymbolOfValueSymbolIfExported(symbol) {
            return symbol && (symbol.flags & 1048576) !== 0
                ? getMergedSymbol(symbol.exportSymbol)
                : symbol;
        }
        function symbolIsValue(symbol) {
            if (symbol.flags & 16777216) {
                return symbolIsValue(getSymbolLinks(symbol).target);
            }
            if (symbol.flags & 107455) {
                return true;
            }
            if (symbol.flags & 8388608) {
                return (resolveAlias(symbol).flags & 107455) !== 0;
            }
            return false;
        }
        function findConstructorDeclaration(node) {
            var members = node.members;
            for (var _i = 0, members_1 = members; _i < members_1.length; _i++) {
                var member = members_1[_i];
                if (member.kind === 147 && ts.nodeIsPresent(member.body)) {
                    return member;
                }
            }
        }
        function createType(flags) {
            var result = new Type(checker, flags);
            result.id = typeCount;
            typeCount++;
            return result;
        }
        function createIntrinsicType(kind, intrinsicName) {
            var type = createType(kind);
            type.intrinsicName = intrinsicName;
            return type;
        }
        function createObjectType(kind, symbol) {
            var type = createType(kind);
            type.symbol = symbol;
            return type;
        }
        function isReservedMemberName(name) {
            return name.charCodeAt(0) === 95 &&
                name.charCodeAt(1) === 95 &&
                name.charCodeAt(2) !== 95 &&
                name.charCodeAt(2) !== 64;
        }
        function getNamedMembers(members) {
            var result;
            for (var id in members) {
                if (ts.hasProperty(members, id)) {
                    if (!isReservedMemberName(id)) {
                        if (!result)
                            result = [];
                        var symbol = members[id];
                        if (symbolIsValue(symbol)) {
                            result.push(symbol);
                        }
                    }
                }
            }
            return result || emptyArray;
        }
        function setObjectTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo) {
            type.members = members;
            type.properties = getNamedMembers(members);
            type.callSignatures = callSignatures;
            type.constructSignatures = constructSignatures;
            if (stringIndexInfo)
                type.stringIndexInfo = stringIndexInfo;
            if (numberIndexInfo)
                type.numberIndexInfo = numberIndexInfo;
            return type;
        }
        function createAnonymousType(symbol, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo) {
            return setObjectTypeMembers(createObjectType(65536, symbol), members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
        }
        function forEachSymbolTableInScope(enclosingDeclaration, callback) {
            var result;
            for (var location_1 = enclosingDeclaration; location_1; location_1 = location_1.parent) {
                if (location_1.locals && !isGlobalSourceFile(location_1)) {
                    if (result = callback(location_1.locals)) {
                        return result;
                    }
                }
                switch (location_1.kind) {
                    case 255:
                        if (!ts.isExternalOrCommonJsModule(location_1)) {
                            break;
                        }
                    case 224:
                        if (result = callback(getSymbolOfNode(location_1).exports)) {
                            return result;
                        }
                        break;
                }
            }
            return callback(globals);
        }
        function getQualifiedLeftMeaning(rightMeaning) {
            return rightMeaning === 107455 ? 107455 : 1536;
        }
        function getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, useOnlyExternalAliasing) {
            function getAccessibleSymbolChainFromSymbolTable(symbols) {
                function canQualifySymbol(symbolFromSymbolTable, meaning) {
                    if (!needsQualification(symbolFromSymbolTable, enclosingDeclaration, meaning)) {
                        return true;
                    }
                    var accessibleParent = getAccessibleSymbolChain(symbolFromSymbolTable.parent, enclosingDeclaration, getQualifiedLeftMeaning(meaning), useOnlyExternalAliasing);
                    return !!accessibleParent;
                }
                function isAccessible(symbolFromSymbolTable, resolvedAliasSymbol) {
                    if (symbol === (resolvedAliasSymbol || symbolFromSymbolTable)) {
                        return !ts.forEach(symbolFromSymbolTable.declarations, hasExternalModuleSymbol) &&
                            canQualifySymbol(symbolFromSymbolTable, meaning);
                    }
                }
                if (isAccessible(ts.lookUp(symbols, symbol.name))) {
                    return [symbol];
                }
                return ts.forEachValue(symbols, function (symbolFromSymbolTable) {
                    if (symbolFromSymbolTable.flags & 8388608
                        && symbolFromSymbolTable.name !== "export="
                        && !ts.getDeclarationOfKind(symbolFromSymbolTable, 237)) {
                        if (!useOnlyExternalAliasing ||
                            ts.forEach(symbolFromSymbolTable.declarations, ts.isExternalModuleImportEqualsDeclaration)) {
                            var resolvedImportedSymbol = resolveAlias(symbolFromSymbolTable);
                            if (isAccessible(symbolFromSymbolTable, resolveAlias(symbolFromSymbolTable))) {
                                return [symbolFromSymbolTable];
                            }
                            var accessibleSymbolsFromExports = resolvedImportedSymbol.exports ? getAccessibleSymbolChainFromSymbolTable(resolvedImportedSymbol.exports) : undefined;
                            if (accessibleSymbolsFromExports && canQualifySymbol(symbolFromSymbolTable, getQualifiedLeftMeaning(meaning))) {
                                return [symbolFromSymbolTable].concat(accessibleSymbolsFromExports);
                            }
                        }
                    }
                });
            }
            if (symbol) {
                if (!(isPropertyOrMethodDeclarationSymbol(symbol))) {
                    return forEachSymbolTableInScope(enclosingDeclaration, getAccessibleSymbolChainFromSymbolTable);
                }
            }
        }
        function needsQualification(symbol, enclosingDeclaration, meaning) {
            var qualify = false;
            forEachSymbolTableInScope(enclosingDeclaration, function (symbolTable) {
                if (!ts.hasProperty(symbolTable, symbol.name)) {
                    return false;
                }
                var symbolFromSymbolTable = symbolTable[symbol.name];
                if (symbolFromSymbolTable === symbol) {
                    return true;
                }
                symbolFromSymbolTable = (symbolFromSymbolTable.flags & 8388608 && !ts.getDeclarationOfKind(symbolFromSymbolTable, 237)) ? resolveAlias(symbolFromSymbolTable) : symbolFromSymbolTable;
                if (symbolFromSymbolTable.flags & meaning) {
                    qualify = true;
                    return true;
                }
                return false;
            });
            return qualify;
        }
        function isPropertyOrMethodDeclarationSymbol(symbol) {
            if (symbol.declarations && symbol.declarations.length) {
                for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
                    var declaration = _a[_i];
                    switch (declaration.kind) {
                        case 144:
                        case 146:
                        case 148:
                        case 149:
                            continue;
                        default:
                            return false;
                    }
                }
                return true;
            }
            return false;
        }
        function isSymbolAccessible(symbol, enclosingDeclaration, meaning) {
            if (symbol && enclosingDeclaration && !(symbol.flags & 262144)) {
                var initialSymbol = symbol;
                var meaningToLook = meaning;
                while (symbol) {
                    var accessibleSymbolChain = getAccessibleSymbolChain(symbol, enclosingDeclaration, meaningToLook, false);
                    if (accessibleSymbolChain) {
                        var hasAccessibleDeclarations = hasVisibleDeclarations(accessibleSymbolChain[0]);
                        if (!hasAccessibleDeclarations) {
                            return {
                                accessibility: 1,
                                errorSymbolName: symbolToString(initialSymbol, enclosingDeclaration, meaning),
                                errorModuleName: symbol !== initialSymbol ? symbolToString(symbol, enclosingDeclaration, 1536) : undefined
                            };
                        }
                        return hasAccessibleDeclarations;
                    }
                    meaningToLook = getQualifiedLeftMeaning(meaning);
                    symbol = getParentOfSymbol(symbol);
                }
                var symbolExternalModule = ts.forEach(initialSymbol.declarations, getExternalModuleContainer);
                if (symbolExternalModule) {
                    var enclosingExternalModule = getExternalModuleContainer(enclosingDeclaration);
                    if (symbolExternalModule !== enclosingExternalModule) {
                        return {
                            accessibility: 2,
                            errorSymbolName: symbolToString(initialSymbol, enclosingDeclaration, meaning),
                            errorModuleName: symbolToString(symbolExternalModule)
                        };
                    }
                }
                return {
                    accessibility: 1,
                    errorSymbolName: symbolToString(initialSymbol, enclosingDeclaration, meaning)
                };
            }
            return { accessibility: 0 };
            function getExternalModuleContainer(declaration) {
                for (; declaration; declaration = declaration.parent) {
                    if (hasExternalModuleSymbol(declaration)) {
                        return getSymbolOfNode(declaration);
                    }
                }
            }
        }
        function hasExternalModuleSymbol(declaration) {
            return ts.isAmbientModule(declaration) || (declaration.kind === 255 && ts.isExternalOrCommonJsModule(declaration));
        }
        function hasVisibleDeclarations(symbol) {
            var aliasesToMakeVisible;
            if (ts.forEach(symbol.declarations, function (declaration) { return !getIsDeclarationVisible(declaration); })) {
                return undefined;
            }
            return { accessibility: 0, aliasesToMakeVisible: aliasesToMakeVisible };
            function getIsDeclarationVisible(declaration) {
                if (!isDeclarationVisible(declaration)) {
                    var anyImportSyntax = getAnyImportSyntax(declaration);
                    if (anyImportSyntax &&
                        !(anyImportSyntax.flags & 1) &&
                        isDeclarationVisible(anyImportSyntax.parent)) {
                        getNodeLinks(declaration).isVisible = true;
                        if (aliasesToMakeVisible) {
                            if (!ts.contains(aliasesToMakeVisible, anyImportSyntax)) {
                                aliasesToMakeVisible.push(anyImportSyntax);
                            }
                        }
                        else {
                            aliasesToMakeVisible = [anyImportSyntax];
                        }
                        return true;
                    }
                    return false;
                }
                return true;
            }
        }
        function isEntityNameVisible(entityName, enclosingDeclaration) {
            var meaning;
            if (entityName.parent.kind === 157 || ts.isExpressionWithTypeArgumentsInClassExtendsClause(entityName.parent)) {
                meaning = 107455 | 1048576;
            }
            else if (entityName.kind === 138 || entityName.kind === 171 ||
                entityName.parent.kind === 228) {
                meaning = 1536;
            }
            else {
                meaning = 793056;
            }
            var firstIdentifier = getFirstIdentifier(entityName);
            var symbol = resolveName(enclosingDeclaration, firstIdentifier.text, meaning, undefined, undefined);
            return (symbol && hasVisibleDeclarations(symbol)) || {
                accessibility: 1,
                errorSymbolName: ts.getTextOfNode(firstIdentifier),
                errorNode: firstIdentifier
            };
        }
        function writeKeyword(writer, kind) {
            writer.writeKeyword(ts.tokenToString(kind));
        }
        function writePunctuation(writer, kind) {
            writer.writePunctuation(ts.tokenToString(kind));
        }
        function writeSpace(writer) {
            writer.writeSpace(" ");
        }
        function symbolToString(symbol, enclosingDeclaration, meaning) {
            var writer = ts.getSingleLineStringWriter();
            getSymbolDisplayBuilder().buildSymbolDisplay(symbol, writer, enclosingDeclaration, meaning);
            var result = writer.string();
            ts.releaseStringWriter(writer);
            return result;
        }
        function signatureToString(signature, enclosingDeclaration, flags, kind) {
            var writer = ts.getSingleLineStringWriter();
            getSymbolDisplayBuilder().buildSignatureDisplay(signature, writer, enclosingDeclaration, flags, kind);
            var result = writer.string();
            ts.releaseStringWriter(writer);
            return result;
        }
        function typeToString(type, enclosingDeclaration, flags) {
            var writer = ts.getSingleLineStringWriter();
            getSymbolDisplayBuilder().buildTypeDisplay(type, writer, enclosingDeclaration, flags);
            var result = writer.string();
            ts.releaseStringWriter(writer);
            var maxLength = compilerOptions.noErrorTruncation || flags & 4 ? undefined : 100;
            if (maxLength && result.length >= maxLength) {
                result = result.substr(0, maxLength - "...".length) + "...";
            }
            return result;
        }
        function typePredicateToString(typePredicate, enclosingDeclaration, flags) {
            var writer = ts.getSingleLineStringWriter();
            getSymbolDisplayBuilder().buildTypePredicateDisplay(typePredicate, writer, enclosingDeclaration, flags);
            var result = writer.string();
            ts.releaseStringWriter(writer);
            return result;
        }
        function visibilityToString(flags) {
            if (flags === 8) {
                return "private";
            }
            if (flags === 16) {
                return "protected";
            }
            return "public";
        }
        function getTypeAliasForTypeLiteral(type) {
            if (type.symbol && type.symbol.flags & 2048) {
                var node = type.symbol.declarations[0].parent;
                while (node.kind === 163) {
                    node = node.parent;
                }
                if (node.kind === 222) {
                    return getSymbolOfNode(node);
                }
            }
            return undefined;
        }
        function isTopLevelInExternalModuleAugmentation(node) {
            return node && node.parent &&
                node.parent.kind === 225 &&
                ts.isExternalModuleAugmentation(node.parent.parent);
        }
        function getSymbolDisplayBuilder() {
            function getNameOfSymbol(symbol) {
                if (symbol.declarations && symbol.declarations.length) {
                    var declaration = symbol.declarations[0];
                    if (declaration.name) {
                        return ts.declarationNameToString(declaration.name);
                    }
                    switch (declaration.kind) {
                        case 191:
                            return "(Anonymous class)";
                        case 178:
                        case 179:
                            return "(Anonymous function)";
                    }
                }
                return symbol.name;
            }
            function appendSymbolNameOnly(symbol, writer) {
                writer.writeSymbol(getNameOfSymbol(symbol), symbol);
            }
            function appendPropertyOrElementAccessForSymbol(symbol, writer) {
                var symbolName = getNameOfSymbol(symbol);
                var firstChar = symbolName.charCodeAt(0);
                var needsElementAccess = !ts.isIdentifierStart(firstChar, languageVersion);
                if (needsElementAccess) {
                    writePunctuation(writer, 19);
                    if (ts.isSingleOrDoubleQuote(firstChar)) {
                        writer.writeStringLiteral(symbolName);
                    }
                    else {
                        writer.writeSymbol(symbolName, symbol);
                    }
                    writePunctuation(writer, 20);
                }
                else {
                    writePunctuation(writer, 21);
                    writer.writeSymbol(symbolName, symbol);
                }
            }
            function buildSymbolDisplay(symbol, writer, enclosingDeclaration, meaning, flags, typeFlags) {
                var parentSymbol;
                function appendParentTypeArgumentsAndSymbolName(symbol) {
                    if (parentSymbol) {
                        if (flags & 1) {
                            if (symbol.flags & 16777216) {
                                buildDisplayForTypeArgumentsAndDelimiters(getTypeParametersOfClassOrInterface(parentSymbol), symbol.mapper, writer, enclosingDeclaration);
                            }
                            else {
                                buildTypeParameterDisplayFromSymbol(parentSymbol, writer, enclosingDeclaration);
                            }
                        }
                        appendPropertyOrElementAccessForSymbol(symbol, writer);
                    }
                    else {
                        appendSymbolNameOnly(symbol, writer);
                    }
                    parentSymbol = symbol;
                }
                writer.trackSymbol(symbol, enclosingDeclaration, meaning);
                function walkSymbol(symbol, meaning) {
                    if (symbol) {
                        var accessibleSymbolChain = getAccessibleSymbolChain(symbol, enclosingDeclaration, meaning, !!(flags & 2));
                        if (!accessibleSymbolChain ||
                            needsQualification(accessibleSymbolChain[0], enclosingDeclaration, accessibleSymbolChain.length === 1 ? meaning : getQualifiedLeftMeaning(meaning))) {
                            walkSymbol(getParentOfSymbol(accessibleSymbolChain ? accessibleSymbolChain[0] : symbol), getQualifiedLeftMeaning(meaning));
                        }
                        if (accessibleSymbolChain) {
                            for (var _i = 0, accessibleSymbolChain_1 = accessibleSymbolChain; _i < accessibleSymbolChain_1.length; _i++) {
                                var accessibleSymbol = accessibleSymbolChain_1[_i];
                                appendParentTypeArgumentsAndSymbolName(accessibleSymbol);
                            }
                        }
                        else {
                            if (!parentSymbol && ts.forEach(symbol.declarations, hasExternalModuleSymbol)) {
                                return;
                            }
                            if (symbol.flags & 2048 || symbol.flags & 4096) {
                                return;
                            }
                            appendParentTypeArgumentsAndSymbolName(symbol);
                        }
                    }
                }
                var isTypeParameter = symbol.flags & 262144;
                var typeFormatFlag = 128 & typeFlags;
                if (!isTypeParameter && (enclosingDeclaration || typeFormatFlag)) {
                    walkSymbol(symbol, meaning);
                    return;
                }
                return appendParentTypeArgumentsAndSymbolName(symbol);
            }
            function buildTypeDisplay(type, writer, enclosingDeclaration, globalFlags, symbolStack) {
                var globalFlagsToPass = globalFlags & 16;
                var inObjectTypeLiteral = false;
                return writeType(type, globalFlags);
                function writeType(type, flags) {
                    if (type.flags & 16777343) {
                        writer.writeKeyword(!(globalFlags & 16) && isTypeAny(type)
                            ? "any"
                            : type.intrinsicName);
                    }
                    else if (type.flags & 33554432) {
                        if (inObjectTypeLiteral) {
                            writer.reportInaccessibleThisError();
                        }
                        writer.writeKeyword("this");
                    }
                    else if (type.flags & 4096) {
                        writeTypeReference(type, flags);
                    }
                    else if (type.flags & (1024 | 2048 | 128 | 512)) {
                        buildSymbolDisplay(type.symbol, writer, enclosingDeclaration, 793056, 0, flags);
                    }
                    else if (type.flags & 8192) {
                        writeTupleType(type);
                    }
                    else if (type.flags & 49152) {
                        writeUnionOrIntersectionType(type, flags);
                    }
                    else if (type.flags & 65536) {
                        if (type === emptyUnionType) {
                            writer.writeKeyword("nothing");
                        }
                        else {
                            writeAnonymousType(type, flags);
                        }
                    }
                    else if (type.flags & 256) {
                        writer.writeStringLiteral("\"" + ts.escapeString(type.text) + "\"");
                    }
                    else {
                        writePunctuation(writer, 15);
                        writeSpace(writer);
                        writePunctuation(writer, 22);
                        writeSpace(writer);
                        writePunctuation(writer, 16);
                    }
                }
                function writeTypeList(types, delimiter) {
                    for (var i = 0; i < types.length; i++) {
                        if (i > 0) {
                            if (delimiter !== 24) {
                                writeSpace(writer);
                            }
                            writePunctuation(writer, delimiter);
                            writeSpace(writer);
                        }
                        writeType(types[i], delimiter === 24 ? 0 : 64);
                    }
                }
                function writeSymbolTypeReference(symbol, typeArguments, pos, end, flags) {
                    if (symbol.flags & 32 || !isReservedMemberName(symbol.name)) {
                        buildSymbolDisplay(symbol, writer, enclosingDeclaration, 793056, 0, flags);
                    }
                    if (pos < end) {
                        writePunctuation(writer, 25);
                        writeType(typeArguments[pos], 256);
                        pos++;
                        while (pos < end) {
                            writePunctuation(writer, 24);
                            writeSpace(writer);
                            writeType(typeArguments[pos], 0);
                            pos++;
                        }
                        writePunctuation(writer, 27);
                    }
                }
                function writeTypeReference(type, flags) {
                    var typeArguments = type.typeArguments || emptyArray;
                    if (type.target === globalArrayType && !(flags & 1)) {
                        writeType(typeArguments[0], 64);
                        writePunctuation(writer, 19);
                        writePunctuation(writer, 20);
                    }
                    else {
                        var outerTypeParameters = type.target.outerTypeParameters;
                        var i = 0;
                        if (outerTypeParameters) {
                            var length_1 = outerTypeParameters.length;
                            while (i < length_1) {
                                var start = i;
                                var parent_6 = getParentSymbolOfTypeParameter(outerTypeParameters[i]);
                                do {
                                    i++;
                                } while (i < length_1 && getParentSymbolOfTypeParameter(outerTypeParameters[i]) === parent_6);
                                if (!ts.rangeEquals(outerTypeParameters, typeArguments, start, i)) {
                                    writeSymbolTypeReference(parent_6, typeArguments, start, i, flags);
                                    writePunctuation(writer, 21);
                                }
                            }
                        }
                        var typeParameterCount = (type.target.typeParameters || emptyArray).length;
                        writeSymbolTypeReference(type.symbol, typeArguments, i, typeParameterCount, flags);
                    }
                }
                function writeTupleType(type) {
                    writePunctuation(writer, 19);
                    writeTypeList(type.elementTypes, 24);
                    writePunctuation(writer, 20);
                }
                function writeUnionOrIntersectionType(type, flags) {
                    if (flags & 64) {
                        writePunctuation(writer, 17);
                    }
                    writeTypeList(type.types, type.flags & 16384 ? 47 : 46);
                    if (flags & 64) {
                        writePunctuation(writer, 18);
                    }
                }
                function writeAnonymousType(type, flags) {
                    var symbol = type.symbol;
                    if (symbol) {
                        if (symbol.flags & (32 | 384 | 512)) {
                            writeTypeOfSymbol(type, flags);
                        }
                        else if (shouldWriteTypeOfFunctionSymbol()) {
                            writeTypeOfSymbol(type, flags);
                        }
                        else if (ts.contains(symbolStack, symbol)) {
                            var typeAlias = getTypeAliasForTypeLiteral(type);
                            if (typeAlias) {
                                buildSymbolDisplay(typeAlias, writer, enclosingDeclaration, 793056, 0, flags);
                            }
                            else {
                                writeKeyword(writer, 117);
                            }
                        }
                        else {
                            if (!symbolStack) {
                                symbolStack = [];
                            }
                            symbolStack.push(symbol);
                            writeLiteralType(type, flags);
                            symbolStack.pop();
                        }
                    }
                    else {
                        writeLiteralType(type, flags);
                    }
                    function shouldWriteTypeOfFunctionSymbol() {
                        var isStaticMethodSymbol = !!(symbol.flags & 8192 &&
                            ts.forEach(symbol.declarations, function (declaration) { return declaration.flags & 32; }));
                        var isNonLocalFunctionSymbol = !!(symbol.flags & 16) &&
                            (symbol.parent ||
                                ts.forEach(symbol.declarations, function (declaration) {
                                    return declaration.parent.kind === 255 || declaration.parent.kind === 225;
                                }));
                        if (isStaticMethodSymbol || isNonLocalFunctionSymbol) {
                            return !!(flags & 2) ||
                                (ts.contains(symbolStack, symbol));
                        }
                    }
                }
                function writeTypeOfSymbol(type, typeFormatFlags) {
                    writeKeyword(writer, 101);
                    writeSpace(writer);
                    buildSymbolDisplay(type.symbol, writer, enclosingDeclaration, 107455, 0, typeFormatFlags);
                }
                function writeIndexSignature(info, keyword) {
                    if (info) {
                        if (info.isReadonly) {
                            writeKeyword(writer, 127);
                            writeSpace(writer);
                        }
                        writePunctuation(writer, 19);
                        writer.writeParameter(info.declaration ? ts.declarationNameToString(info.declaration.parameters[0].name) : "x");
                        writePunctuation(writer, 54);
                        writeSpace(writer);
                        writeKeyword(writer, keyword);
                        writePunctuation(writer, 20);
                        writePunctuation(writer, 54);
                        writeSpace(writer);
                        writeType(info.type, 0);
                        writePunctuation(writer, 23);
                        writer.writeLine();
                    }
                }
                function writePropertyWithModifiers(prop) {
                    if (isReadonlySymbol(prop)) {
                        writeKeyword(writer, 127);
                        writeSpace(writer);
                    }
                    buildSymbolDisplay(prop, writer);
                    if (prop.flags & 536870912) {
                        writePunctuation(writer, 53);
                    }
                }
                function shouldAddParenthesisAroundFunctionType(callSignature, flags) {
                    if (flags & 64) {
                        return true;
                    }
                    else if (flags & 256) {
                        var typeParameters = callSignature.target && (flags & 32) ?
                            callSignature.target.typeParameters : callSignature.typeParameters;
                        return typeParameters && typeParameters.length !== 0;
                    }
                    return false;
                }
                function writeLiteralType(type, flags) {
                    var resolved = resolveStructuredTypeMembers(type);
                    if (!resolved.properties.length && !resolved.stringIndexInfo && !resolved.numberIndexInfo) {
                        if (!resolved.callSignatures.length && !resolved.constructSignatures.length) {
                            writePunctuation(writer, 15);
                            writePunctuation(writer, 16);
                            return;
                        }
                        if (resolved.callSignatures.length === 1 && !resolved.constructSignatures.length) {
                            var parenthesizeSignature = shouldAddParenthesisAroundFunctionType(resolved.callSignatures[0], flags);
                            if (parenthesizeSignature) {
                                writePunctuation(writer, 17);
                            }
                            buildSignatureDisplay(resolved.callSignatures[0], writer, enclosingDeclaration, globalFlagsToPass | 8, undefined, symbolStack);
                            if (parenthesizeSignature) {
                                writePunctuation(writer, 18);
                            }
                            return;
                        }
                        if (resolved.constructSignatures.length === 1 && !resolved.callSignatures.length) {
                            if (flags & 64) {
                                writePunctuation(writer, 17);
                            }
                            writeKeyword(writer, 92);
                            writeSpace(writer);
                            buildSignatureDisplay(resolved.constructSignatures[0], writer, enclosingDeclaration, globalFlagsToPass | 8, undefined, symbolStack);
                            if (flags & 64) {
                                writePunctuation(writer, 18);
                            }
                            return;
                        }
                    }
                    var saveInObjectTypeLiteral = inObjectTypeLiteral;
                    inObjectTypeLiteral = true;
                    writePunctuation(writer, 15);
                    writer.writeLine();
                    writer.increaseIndent();
                    for (var _i = 0, _a = resolved.callSignatures; _i < _a.length; _i++) {
                        var signature = _a[_i];
                        buildSignatureDisplay(signature, writer, enclosingDeclaration, globalFlagsToPass, undefined, symbolStack);
                        writePunctuation(writer, 23);
                        writer.writeLine();
                    }
                    for (var _b = 0, _c = resolved.constructSignatures; _b < _c.length; _b++) {
                        var signature = _c[_b];
                        buildSignatureDisplay(signature, writer, enclosingDeclaration, globalFlagsToPass, 1, symbolStack);
                        writePunctuation(writer, 23);
                        writer.writeLine();
                    }
                    writeIndexSignature(resolved.stringIndexInfo, 131);
                    writeIndexSignature(resolved.numberIndexInfo, 129);
                    for (var _d = 0, _e = resolved.properties; _d < _e.length; _d++) {
                        var p = _e[_d];
                        var t = getTypeOfSymbol(p);
                        if (p.flags & (16 | 8192) && !getPropertiesOfObjectType(t).length) {
                            var signatures = getSignaturesOfType(t, 0);
                            for (var _f = 0, signatures_1 = signatures; _f < signatures_1.length; _f++) {
                                var signature = signatures_1[_f];
                                writePropertyWithModifiers(p);
                                buildSignatureDisplay(signature, writer, enclosingDeclaration, globalFlagsToPass, undefined, symbolStack);
                                writePunctuation(writer, 23);
                                writer.writeLine();
                            }
                        }
                        else {
                            writePropertyWithModifiers(p);
                            writePunctuation(writer, 54);
                            writeSpace(writer);
                            writeType(t, 0);
                            writePunctuation(writer, 23);
                            writer.writeLine();
                        }
                    }
                    writer.decreaseIndent();
                    writePunctuation(writer, 16);
                    inObjectTypeLiteral = saveInObjectTypeLiteral;
                }
            }
            function buildTypeParameterDisplayFromSymbol(symbol, writer, enclosingDeclaration, flags) {
                var targetSymbol = getTargetSymbol(symbol);
                if (targetSymbol.flags & 32 || targetSymbol.flags & 64 || targetSymbol.flags & 524288) {
                    buildDisplayForTypeParametersAndDelimiters(getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol), writer, enclosingDeclaration, flags);
                }
            }
            function buildTypeParameterDisplay(tp, writer, enclosingDeclaration, flags, symbolStack) {
                appendSymbolNameOnly(tp.symbol, writer);
                var constraint = getConstraintOfTypeParameter(tp);
                if (constraint) {
                    writeSpace(writer);
                    writeKeyword(writer, 83);
                    writeSpace(writer);
                    buildTypeDisplay(constraint, writer, enclosingDeclaration, flags, symbolStack);
                }
            }
            function buildParameterDisplay(p, writer, enclosingDeclaration, flags, symbolStack) {
                var parameterNode = p.valueDeclaration;
                if (ts.isRestParameter(parameterNode)) {
                    writePunctuation(writer, 22);
                }
                if (ts.isBindingPattern(parameterNode.name)) {
                    buildBindingPatternDisplay(parameterNode.name, writer, enclosingDeclaration, flags, symbolStack);
                }
                else {
                    appendSymbolNameOnly(p, writer);
                }
                if (isOptionalParameter(parameterNode)) {
                    writePunctuation(writer, 53);
                }
                writePunctuation(writer, 54);
                writeSpace(writer);
                buildTypeDisplay(getTypeOfSymbol(p), writer, enclosingDeclaration, flags, symbolStack);
            }
            function buildBindingPatternDisplay(bindingPattern, writer, enclosingDeclaration, flags, symbolStack) {
                if (bindingPattern.kind === 166) {
                    writePunctuation(writer, 15);
                    buildDisplayForCommaSeparatedList(bindingPattern.elements, writer, function (e) { return buildBindingElementDisplay(e, writer, enclosingDeclaration, flags, symbolStack); });
                    writePunctuation(writer, 16);
                }
                else if (bindingPattern.kind === 167) {
                    writePunctuation(writer, 19);
                    var elements = bindingPattern.elements;
                    buildDisplayForCommaSeparatedList(elements, writer, function (e) { return buildBindingElementDisplay(e, writer, enclosingDeclaration, flags, symbolStack); });
                    if (elements && elements.hasTrailingComma) {
                        writePunctuation(writer, 24);
                    }
                    writePunctuation(writer, 20);
                }
            }
            function buildBindingElementDisplay(bindingElement, writer, enclosingDeclaration, flags, symbolStack) {
                if (bindingElement.kind === 192) {
                    return;
                }
                ts.Debug.assert(bindingElement.kind === 168);
                if (bindingElement.propertyName) {
                    writer.writeSymbol(ts.getTextOfNode(bindingElement.propertyName), bindingElement.symbol);
                    writePunctuation(writer, 54);
                    writeSpace(writer);
                }
                if (ts.isBindingPattern(bindingElement.name)) {
                    buildBindingPatternDisplay(bindingElement.name, writer, enclosingDeclaration, flags, symbolStack);
                }
                else {
                    if (bindingElement.dotDotDotToken) {
                        writePunctuation(writer, 22);
                    }
                    appendSymbolNameOnly(bindingElement.symbol, writer);
                }
            }
            function buildDisplayForTypeParametersAndDelimiters(typeParameters, writer, enclosingDeclaration, flags, symbolStack) {
                if (typeParameters && typeParameters.length) {
                    writePunctuation(writer, 25);
                    buildDisplayForCommaSeparatedList(typeParameters, writer, function (p) { return buildTypeParameterDisplay(p, writer, enclosingDeclaration, flags, symbolStack); });
                    writePunctuation(writer, 27);
                }
            }
            function buildDisplayForCommaSeparatedList(list, writer, action) {
                for (var i = 0; i < list.length; i++) {
                    if (i > 0) {
                        writePunctuation(writer, 24);
                        writeSpace(writer);
                    }
                    action(list[i]);
                }
            }
            function buildDisplayForTypeArgumentsAndDelimiters(typeParameters, mapper, writer, enclosingDeclaration, flags, symbolStack) {
                if (typeParameters && typeParameters.length) {
                    writePunctuation(writer, 25);
                    var flags_1 = 256;
                    for (var i = 0; i < typeParameters.length; i++) {
                        if (i > 0) {
                            writePunctuation(writer, 24);
                            writeSpace(writer);
                            flags_1 = 0;
                        }
                        buildTypeDisplay(mapper(typeParameters[i]), writer, enclosingDeclaration, flags_1);
                    }
                    writePunctuation(writer, 27);
                }
            }
            function buildDisplayForParametersAndDelimiters(thisType, parameters, writer, enclosingDeclaration, flags, symbolStack) {
                writePunctuation(writer, 17);
                if (thisType) {
                    writeKeyword(writer, 97);
                    writePunctuation(writer, 54);
                    writeSpace(writer);
                    buildTypeDisplay(thisType, writer, enclosingDeclaration, flags, symbolStack);
                }
                for (var i = 0; i < parameters.length; i++) {
                    if (i > 0 || thisType) {
                        writePunctuation(writer, 24);
                        writeSpace(writer);
                    }
                    buildParameterDisplay(parameters[i], writer, enclosingDeclaration, flags, symbolStack);
                }
                writePunctuation(writer, 18);
            }
            function buildTypePredicateDisplay(predicate, writer, enclosingDeclaration, flags, symbolStack) {
                if (ts.isIdentifierTypePredicate(predicate)) {
                    writer.writeParameter(predicate.parameterName);
                }
                else {
                    writeKeyword(writer, 97);
                }
                writeSpace(writer);
                writeKeyword(writer, 124);
                writeSpace(writer);
                buildTypeDisplay(predicate.type, writer, enclosingDeclaration, flags, symbolStack);
            }
            function buildReturnTypeDisplay(signature, writer, enclosingDeclaration, flags, symbolStack) {
                if (flags & 8) {
                    writeSpace(writer);
                    writePunctuation(writer, 34);
                }
                else {
                    writePunctuation(writer, 54);
                }
                writeSpace(writer);
                if (signature.typePredicate) {
                    buildTypePredicateDisplay(signature.typePredicate, writer, enclosingDeclaration, flags, symbolStack);
                }
                else {
                    var returnType = getReturnTypeOfSignature(signature);
                    buildTypeDisplay(returnType, writer, enclosingDeclaration, flags, symbolStack);
                }
            }
            function buildSignatureDisplay(signature, writer, enclosingDeclaration, flags, kind, symbolStack) {
                if (kind === 1) {
                    writeKeyword(writer, 92);
                    writeSpace(writer);
                }
                if (signature.target && (flags & 32)) {
                    buildDisplayForTypeArgumentsAndDelimiters(signature.target.typeParameters, signature.mapper, writer, enclosingDeclaration);
                }
                else {
                    buildDisplayForTypeParametersAndDelimiters(signature.typeParameters, writer, enclosingDeclaration, flags, symbolStack);
                }
                buildDisplayForParametersAndDelimiters(signature.thisType, signature.parameters, writer, enclosingDeclaration, flags, symbolStack);
                buildReturnTypeDisplay(signature, writer, enclosingDeclaration, flags, symbolStack);
            }
            return _displayBuilder || (_displayBuilder = {
                buildSymbolDisplay: buildSymbolDisplay,
                buildTypeDisplay: buildTypeDisplay,
                buildTypeParameterDisplay: buildTypeParameterDisplay,
                buildTypePredicateDisplay: buildTypePredicateDisplay,
                buildParameterDisplay: buildParameterDisplay,
                buildDisplayForParametersAndDelimiters: buildDisplayForParametersAndDelimiters,
                buildDisplayForTypeParametersAndDelimiters: buildDisplayForTypeParametersAndDelimiters,
                buildTypeParameterDisplayFromSymbol: buildTypeParameterDisplayFromSymbol,
                buildSignatureDisplay: buildSignatureDisplay,
                buildReturnTypeDisplay: buildReturnTypeDisplay
            });
        }
        function isDeclarationVisible(node) {
            if (node) {
                var links = getNodeLinks(node);
                if (links.isVisible === undefined) {
                    links.isVisible = !!determineIfDeclarationIsVisible();
                }
                return links.isVisible;
            }
            return false;
            function determineIfDeclarationIsVisible() {
                switch (node.kind) {
                    case 168:
                        return isDeclarationVisible(node.parent.parent);
                    case 217:
                        if (ts.isBindingPattern(node.name) &&
                            !node.name.elements.length) {
                            return false;
                        }
                    case 224:
                    case 220:
                    case 221:
                    case 222:
                    case 219:
                    case 223:
                    case 228:
                        if (ts.isExternalModuleAugmentation(node)) {
                            return true;
                        }
                        var parent_7 = getDeclarationContainer(node);
                        if (!(ts.getCombinedNodeFlags(node) & 1) &&
                            !(node.kind !== 228 && parent_7.kind !== 255 && ts.isInAmbientContext(parent_7))) {
                            return isGlobalSourceFile(parent_7);
                        }
                        return isDeclarationVisible(parent_7);
                    case 144:
                    case 143:
                    case 148:
                    case 149:
                    case 146:
                    case 145:
                        if (node.flags & (8 | 16)) {
                            return false;
                        }
                    case 147:
                    case 151:
                    case 150:
                    case 152:
                    case 141:
                    case 225:
                    case 155:
                    case 156:
                    case 158:
                    case 154:
                    case 159:
                    case 160:
                    case 161:
                    case 162:
                    case 163:
                        return isDeclarationVisible(node.parent);
                    case 230:
                    case 231:
                    case 233:
                        return false;
                    case 140:
                    case 255:
                        return true;
                    case 234:
                        return false;
                    default:
                        return false;
                }
            }
        }
        function collectLinkedAliases(node) {
            var exportSymbol;
            if (node.parent && node.parent.kind === 234) {
                exportSymbol = resolveName(node.parent, node.text, 107455 | 793056 | 1536 | 8388608, ts.Diagnostics.Cannot_find_name_0, node);
            }
            else if (node.parent.kind === 237) {
                var exportSpecifier = node.parent;
                exportSymbol = exportSpecifier.parent.parent.moduleSpecifier ?
                    getExternalModuleMember(exportSpecifier.parent.parent, exportSpecifier) :
                    resolveEntityName(exportSpecifier.propertyName || exportSpecifier.name, 107455 | 793056 | 1536 | 8388608);
            }
            var result = [];
            if (exportSymbol) {
                buildVisibleNodeList(exportSymbol.declarations);
            }
            return result;
            function buildVisibleNodeList(declarations) {
                ts.forEach(declarations, function (declaration) {
                    getNodeLinks(declaration).isVisible = true;
                    var resultNode = getAnyImportSyntax(declaration) || declaration;
                    if (!ts.contains(result, resultNode)) {
                        result.push(resultNode);
                    }
                    if (ts.isInternalModuleImportEqualsDeclaration(declaration)) {
                        var internalModuleReference = declaration.moduleReference;
                        var firstIdentifier = getFirstIdentifier(internalModuleReference);
                        var importSymbol = resolveName(declaration, firstIdentifier.text, 107455 | 793056 | 1536, ts.Diagnostics.Cannot_find_name_0, firstIdentifier);
                        if (importSymbol) {
                            buildVisibleNodeList(importSymbol.declarations);
                        }
                    }
                });
            }
        }
        function pushTypeResolution(target, propertyName) {
            var resolutionCycleStartIndex = findResolutionCycleStartIndex(target, propertyName);
            if (resolutionCycleStartIndex >= 0) {
                var length_2 = resolutionTargets.length;
                for (var i = resolutionCycleStartIndex; i < length_2; i++) {
                    resolutionResults[i] = false;
                }
                return false;
            }
            resolutionTargets.push(target);
            resolutionResults.push(true);
            resolutionPropertyNames.push(propertyName);
            return true;
        }
        function findResolutionCycleStartIndex(target, propertyName) {
            for (var i = resolutionTargets.length - 1; i >= 0; i--) {
                if (hasType(resolutionTargets[i], resolutionPropertyNames[i])) {
                    return -1;
                }
                if (resolutionTargets[i] === target && resolutionPropertyNames[i] === propertyName) {
                    return i;
                }
            }
            return -1;
        }
        function hasType(target, propertyName) {
            if (propertyName === 0) {
                return getSymbolLinks(target).type;
            }
            if (propertyName === 2) {
                return getSymbolLinks(target).declaredType;
            }
            if (propertyName === 1) {
                ts.Debug.assert(!!(target.flags & 1024));
                return target.resolvedBaseConstructorType;
            }
            if (propertyName === 3) {
                return target.resolvedReturnType;
            }
            ts.Debug.fail("Unhandled TypeSystemPropertyName " + propertyName);
        }
        function popTypeResolution() {
            resolutionTargets.pop();
            resolutionPropertyNames.pop();
            return resolutionResults.pop();
        }
        function getDeclarationContainer(node) {
            node = ts.getRootDeclaration(node);
            while (node) {
                switch (node.kind) {
                    case 217:
                    case 218:
                    case 233:
                    case 232:
                    case 231:
                    case 230:
                        node = node.parent;
                        break;
                    default:
                        return node.parent;
                }
            }
        }
        function getTypeOfPrototypeProperty(prototype) {
            var classType = getDeclaredTypeOfSymbol(getParentOfSymbol(prototype));
            return classType.typeParameters ? createTypeReference(classType, ts.map(classType.typeParameters, function (_) { return anyType; })) : classType;
        }
        function getTypeOfPropertyOfType(type, name) {
            var prop = getPropertyOfType(type, name);
            return prop ? getTypeOfSymbol(prop) : undefined;
        }
        function isTypeAny(type) {
            return type && (type.flags & 1) !== 0;
        }
        function getTypeForBindingElementParent(node) {
            var symbol = getSymbolOfNode(node);
            return symbol && getSymbolLinks(symbol).type || getTypeForVariableLikeDeclaration(node);
        }
        function getTextOfPropertyName(name) {
            switch (name.kind) {
                case 69:
                    return name.text;
                case 9:
                case 8:
                    return name.text;
                case 139:
                    if (ts.isStringOrNumericLiteral(name.expression.kind)) {
                        return name.expression.text;
                    }
            }
            return undefined;
        }
        function isComputedNonLiteralName(name) {
            return name.kind === 139 && !ts.isStringOrNumericLiteral(name.expression.kind);
        }
        function getTypeForBindingElement(declaration) {
            var pattern = declaration.parent;
            var parentType = getTypeForBindingElementParent(pattern.parent);
            if (parentType === unknownType) {
                return unknownType;
            }
            if (!parentType || isTypeAny(parentType)) {
                if (declaration.initializer) {
                    return checkExpressionCached(declaration.initializer);
                }
                return parentType;
            }
            var type;
            if (pattern.kind === 166) {
                var name_10 = declaration.propertyName || declaration.name;
                if (isComputedNonLiteralName(name_10)) {
                    return anyType;
                }
                if (declaration.initializer) {
                    getContextualType(declaration.initializer);
                }
                var text = getTextOfPropertyName(name_10);
                type = getTypeOfPropertyOfType(parentType, text) ||
                    isNumericLiteralName(text) && getIndexTypeOfType(parentType, 1) ||
                    getIndexTypeOfType(parentType, 0);
                if (!type) {
                    error(name_10, ts.Diagnostics.Type_0_has_no_property_1_and_no_string_index_signature, typeToString(parentType), ts.declarationNameToString(name_10));
                    return unknownType;
                }
            }
            else {
                var elementType = checkIteratedTypeOrElementType(parentType, pattern, false);
                if (!declaration.dotDotDotToken) {
                    var propName = "" + ts.indexOf(pattern.elements, declaration);
                    type = isTupleLikeType(parentType)
                        ? getTypeOfPropertyOfType(parentType, propName)
                        : elementType;
                    if (!type) {
                        if (isTupleType(parentType)) {
                            error(declaration, ts.Diagnostics.Tuple_type_0_with_length_1_cannot_be_assigned_to_tuple_with_length_2, typeToString(parentType), parentType.elementTypes.length, pattern.elements.length);
                        }
                        else {
                            error(declaration, ts.Diagnostics.Type_0_has_no_property_1, typeToString(parentType), propName);
                        }
                        return unknownType;
                    }
                }
                else {
                    type = createArrayType(elementType);
                }
            }
            if (strictNullChecks && declaration.initializer && !(getNullableKind(checkExpressionCached(declaration.initializer)) & 32)) {
                type = getTypeWithFacts(type, 131072);
            }
            return type;
        }
        function getTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
            var jsDocType = getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration);
            if (jsDocType) {
                return getTypeFromTypeNode(jsDocType);
            }
        }
        function getJSDocTypeForVariableLikeDeclarationFromJSDocComment(declaration) {
            var typeTag = ts.getJSDocTypeTag(declaration);
            if (typeTag && typeTag.typeExpression) {
                return typeTag.typeExpression.type;
            }
            if (declaration.kind === 217 &&
                declaration.parent.kind === 218 &&
                declaration.parent.parent.kind === 199) {
                var annotation = ts.getJSDocTypeTag(declaration.parent.parent);
                if (annotation && annotation.typeExpression) {
                    return annotation.typeExpression.type;
                }
            }
            else if (declaration.kind === 141) {
                var paramTag = ts.getCorrespondingJSDocParameterTag(declaration);
                if (paramTag && paramTag.typeExpression) {
                    return paramTag.typeExpression.type;
                }
            }
            return undefined;
        }
        function getTypeForVariableLikeDeclaration(declaration) {
            if (declaration.flags & 134217728) {
                var type = getTypeForVariableLikeDeclarationFromJSDocComment(declaration);
                if (type && type !== unknownType) {
                    return type;
                }
            }
            if (declaration.parent.parent.kind === 206) {
                return stringType;
            }
            if (declaration.parent.parent.kind === 207) {
                return checkRightHandSideOfForOf(declaration.parent.parent.expression) || anyType;
            }
            if (ts.isBindingPattern(declaration.parent)) {
                return getTypeForBindingElement(declaration);
            }
            if (declaration.type) {
                var type = getTypeFromTypeNode(declaration.type);
                return strictNullChecks && declaration.questionToken ? addNullableKind(type, 32) : type;
            }
            if (declaration.kind === 141) {
                var func = declaration.parent;
                if (func.kind === 149 && !ts.hasDynamicName(func)) {
                    var getter = ts.getDeclarationOfKind(declaration.parent.symbol, 148);
                    if (getter) {
                        return getReturnTypeOfSignature(getSignatureFromDeclaration(getter));
                    }
                }
                var type = declaration.symbol.name === "this"
                    ? getContextuallyTypedThisType(func)
                    : getContextuallyTypedParameterType(declaration);
                if (type) {
                    return strictNullChecks && declaration.questionToken ? addNullableKind(type, 32) : type;
                }
            }
            if (declaration.initializer) {
                return checkExpressionCached(declaration.initializer);
            }
            if (declaration.kind === 253) {
                return checkIdentifier(declaration.name);
            }
            if (ts.isBindingPattern(declaration.name)) {
                return getTypeFromBindingPattern(declaration.name, false);
            }
            return undefined;
        }
        function getTypeFromBindingElement(element, includePatternInType) {
            if (element.initializer) {
                var type = checkExpressionCached(element.initializer);
                reportErrorsFromWidening(element, type);
                return getWidenedType(type);
            }
            if (ts.isBindingPattern(element.name)) {
                return getTypeFromBindingPattern(element.name, includePatternInType);
            }
            if (compilerOptions.noImplicitAny && !declarationBelongsToPrivateAmbientMember(element)) {
                reportImplicitAnyError(element, anyType);
            }
            return anyType;
        }
        function getTypeFromObjectBindingPattern(pattern, includePatternInType) {
            var members = {};
            var hasComputedProperties = false;
            ts.forEach(pattern.elements, function (e) {
                var name = e.propertyName || e.name;
                if (isComputedNonLiteralName(name)) {
                    hasComputedProperties = true;
                    return;
                }
                var text = getTextOfPropertyName(name);
                var flags = 4 | 67108864 | (e.initializer ? 536870912 : 0);
                var symbol = createSymbol(flags, text);
                symbol.type = getTypeFromBindingElement(e, includePatternInType);
                symbol.bindingElement = e;
                members[symbol.name] = symbol;
            });
            var result = createAnonymousType(undefined, members, emptyArray, emptyArray, undefined, undefined);
            if (includePatternInType) {
                result.pattern = pattern;
            }
            if (hasComputedProperties) {
                result.flags |= 67108864;
            }
            return result;
        }
        function getTypeFromArrayBindingPattern(pattern, includePatternInType) {
            var elements = pattern.elements;
            if (elements.length === 0 || elements[elements.length - 1].dotDotDotToken) {
                return languageVersion >= 2 ? createIterableType(anyType) : anyArrayType;
            }
            var elementTypes = ts.map(elements, function (e) { return e.kind === 192 ? anyType : getTypeFromBindingElement(e, includePatternInType); });
            if (includePatternInType) {
                var result = createNewTupleType(elementTypes);
                result.pattern = pattern;
                return result;
            }
            return createTupleType(elementTypes);
        }
        function getTypeFromBindingPattern(pattern, includePatternInType) {
            return pattern.kind === 166
                ? getTypeFromObjectBindingPattern(pattern, includePatternInType)
                : getTypeFromArrayBindingPattern(pattern, includePatternInType);
        }
        function getWidenedTypeForVariableLikeDeclaration(declaration, reportErrors) {
            var type = getTypeForVariableLikeDeclaration(declaration);
            if (type) {
                if (reportErrors) {
                    reportErrorsFromWidening(declaration, type);
                }
                if (declaration.kind === 252) {
                    return type;
                }
                return getWidenedType(type);
            }
            type = declaration.dotDotDotToken ? anyArrayType : anyType;
            if (reportErrors && compilerOptions.noImplicitAny) {
                if (!declarationBelongsToPrivateAmbientMember(declaration)) {
                    reportImplicitAnyError(declaration, type);
                }
            }
            return type;
        }
        function declarationBelongsToPrivateAmbientMember(declaration) {
            var root = ts.getRootDeclaration(declaration);
            var memberDeclaration = root.kind === 141 ? root.parent : root;
            return isPrivateWithinAmbient(memberDeclaration);
        }
        function getTypeOfVariableOrParameterOrProperty(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.type) {
                if (symbol.flags & 134217728) {
                    return links.type = getTypeOfPrototypeProperty(symbol);
                }
                var declaration = symbol.valueDeclaration;
                if (declaration.parent.kind === 251) {
                    return links.type = anyType;
                }
                if (declaration.kind === 234) {
                    return links.type = checkExpression(declaration.expression);
                }
                if (declaration.kind === 186) {
                    return links.type = getUnionType(ts.map(symbol.declarations, function (decl) { return checkExpressionCached(decl.right); }));
                }
                if (declaration.kind === 171) {
                    if (declaration.parent.kind === 186) {
                        return links.type = checkExpressionCached(declaration.parent.right);
                    }
                }
                if (!pushTypeResolution(symbol, 0)) {
                    return unknownType;
                }
                var type = getWidenedTypeForVariableLikeDeclaration(declaration, true);
                if (!popTypeResolution()) {
                    if (symbol.valueDeclaration.type) {
                        type = unknownType;
                        error(symbol.valueDeclaration, ts.Diagnostics._0_is_referenced_directly_or_indirectly_in_its_own_type_annotation, symbolToString(symbol));
                    }
                    else {
                        type = anyType;
                        if (compilerOptions.noImplicitAny) {
                            error(symbol.valueDeclaration, ts.Diagnostics._0_implicitly_has_type_any_because_it_does_not_have_a_type_annotation_and_is_referenced_directly_or_indirectly_in_its_own_initializer, symbolToString(symbol));
                        }
                    }
                }
                links.type = type;
            }
            return links.type;
        }
        function getAnnotatedAccessorType(accessor) {
            if (accessor) {
                if (accessor.kind === 148) {
                    return accessor.type && getTypeFromTypeNode(accessor.type);
                }
                else {
                    var setterTypeAnnotation = ts.getSetAccessorTypeAnnotationNode(accessor);
                    return setterTypeAnnotation && getTypeFromTypeNode(setterTypeAnnotation);
                }
            }
            return undefined;
        }
        function getTypeOfAccessors(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.type) {
                var getter = ts.getDeclarationOfKind(symbol, 148);
                var setter = ts.getDeclarationOfKind(symbol, 149);
                if (getter && getter.flags & 134217728) {
                    var jsDocType = getTypeForVariableLikeDeclarationFromJSDocComment(getter);
                    if (jsDocType) {
                        return links.type = jsDocType;
                    }
                }
                if (!pushTypeResolution(symbol, 0)) {
                    return unknownType;
                }
                var type = void 0;
                var getterReturnType = getAnnotatedAccessorType(getter);
                if (getterReturnType) {
                    type = getterReturnType;
                }
                else {
                    var setterParameterType = getAnnotatedAccessorType(setter);
                    if (setterParameterType) {
                        type = setterParameterType;
                    }
                    else {
                        if (getter && getter.body) {
                            type = getReturnTypeFromBody(getter);
                        }
                        else {
                            if (compilerOptions.noImplicitAny) {
                                error(setter, ts.Diagnostics.Property_0_implicitly_has_type_any_because_its_set_accessor_lacks_a_type_annotation, symbolToString(symbol));
                            }
                            type = anyType;
                        }
                    }
                }
                if (!popTypeResolution()) {
                    type = anyType;
                    if (compilerOptions.noImplicitAny) {
                        var getter_1 = ts.getDeclarationOfKind(symbol, 148);
                        error(getter_1, ts.Diagnostics._0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions, symbolToString(symbol));
                    }
                }
                links.type = type;
            }
            return links.type;
        }
        function getTypeOfFuncClassEnumModule(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.type) {
                links.type = createObjectType(65536, symbol);
            }
            return links.type;
        }
        function getTypeOfEnumMember(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.type) {
                links.type = getDeclaredTypeOfEnum(getParentOfSymbol(symbol));
            }
            return links.type;
        }
        function getTypeOfAlias(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.type) {
                var targetSymbol = resolveAlias(symbol);
                links.type = targetSymbol.flags & 107455
                    ? getTypeOfSymbol(targetSymbol)
                    : unknownType;
            }
            return links.type;
        }
        function getTypeOfInstantiatedSymbol(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.type) {
                links.type = instantiateType(getTypeOfSymbol(links.target), links.mapper);
            }
            return links.type;
        }
        function getTypeOfSymbol(symbol) {
            if (symbol.flags & 16777216) {
                return getTypeOfInstantiatedSymbol(symbol);
            }
            if (symbol.flags & (3 | 4)) {
                return getTypeOfVariableOrParameterOrProperty(symbol);
            }
            if (symbol.flags & (16 | 8192 | 32 | 384 | 512)) {
                return getTypeOfFuncClassEnumModule(symbol);
            }
            if (symbol.flags & 8) {
                return getTypeOfEnumMember(symbol);
            }
            if (symbol.flags & 98304) {
                return getTypeOfAccessors(symbol);
            }
            if (symbol.flags & 8388608) {
                return getTypeOfAlias(symbol);
            }
            return unknownType;
        }
        function getTargetType(type) {
            return type.flags & 4096 ? type.target : type;
        }
        function hasBaseType(type, checkBase) {
            return check(type);
            function check(type) {
                var target = getTargetType(type);
                return target === checkBase || ts.forEach(getBaseTypes(target), check);
            }
        }
        function appendTypeParameters(typeParameters, declarations) {
            for (var _i = 0, declarations_2 = declarations; _i < declarations_2.length; _i++) {
                var declaration = declarations_2[_i];
                var tp = getDeclaredTypeOfTypeParameter(getSymbolOfNode(declaration));
                if (!typeParameters) {
                    typeParameters = [tp];
                }
                else if (!ts.contains(typeParameters, tp)) {
                    typeParameters.push(tp);
                }
            }
            return typeParameters;
        }
        function appendOuterTypeParameters(typeParameters, node) {
            while (true) {
                node = node.parent;
                if (!node) {
                    return typeParameters;
                }
                if (node.kind === 220 || node.kind === 191 ||
                    node.kind === 219 || node.kind === 178 ||
                    node.kind === 146 || node.kind === 179) {
                    var declarations = node.typeParameters;
                    if (declarations) {
                        return appendTypeParameters(appendOuterTypeParameters(typeParameters, node), declarations);
                    }
                }
            }
        }
        function getOuterTypeParametersOfClassOrInterface(symbol) {
            var declaration = symbol.flags & 32 ? symbol.valueDeclaration : ts.getDeclarationOfKind(symbol, 221);
            return appendOuterTypeParameters(undefined, declaration);
        }
        function getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol) {
            var result;
            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
                var node = _a[_i];
                if (node.kind === 221 || node.kind === 220 ||
                    node.kind === 191 || node.kind === 222) {
                    var declaration = node;
                    if (declaration.typeParameters) {
                        result = appendTypeParameters(result, declaration.typeParameters);
                    }
                }
            }
            return result;
        }
        function getTypeParametersOfClassOrInterface(symbol) {
            return ts.concatenate(getOuterTypeParametersOfClassOrInterface(symbol), getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol));
        }
        function isConstructorType(type) {
            return type.flags & 80896 && getSignaturesOfType(type, 1).length > 0;
        }
        function getBaseTypeNodeOfClass(type) {
            return ts.getClassExtendsHeritageClauseElement(type.symbol.valueDeclaration);
        }
        function getConstructorsForTypeArguments(type, typeArgumentNodes) {
            var typeArgCount = typeArgumentNodes ? typeArgumentNodes.length : 0;
            return ts.filter(getSignaturesOfType(type, 1), function (sig) { return (sig.typeParameters ? sig.typeParameters.length : 0) === typeArgCount; });
        }
        function getInstantiatedConstructorsForTypeArguments(type, typeArgumentNodes) {
            var signatures = getConstructorsForTypeArguments(type, typeArgumentNodes);
            if (typeArgumentNodes) {
                var typeArguments_1 = ts.map(typeArgumentNodes, getTypeFromTypeNode);
                signatures = ts.map(signatures, function (sig) { return getSignatureInstantiation(sig, typeArguments_1); });
            }
            return signatures;
        }
        function getBaseConstructorTypeOfClass(type) {
            if (!type.resolvedBaseConstructorType) {
                var baseTypeNode = getBaseTypeNodeOfClass(type);
                if (!baseTypeNode) {
                    return type.resolvedBaseConstructorType = undefinedType;
                }
                if (!pushTypeResolution(type, 1)) {
                    return unknownType;
                }
                var baseConstructorType = checkExpression(baseTypeNode.expression);
                if (baseConstructorType.flags & 80896) {
                    resolveStructuredTypeMembers(baseConstructorType);
                }
                if (!popTypeResolution()) {
                    error(type.symbol.valueDeclaration, ts.Diagnostics._0_is_referenced_directly_or_indirectly_in_its_own_base_expression, symbolToString(type.symbol));
                    return type.resolvedBaseConstructorType = unknownType;
                }
                if (baseConstructorType !== unknownType && baseConstructorType !== nullType && !isConstructorType(baseConstructorType)) {
                    error(baseTypeNode.expression, ts.Diagnostics.Type_0_is_not_a_constructor_function_type, typeToString(baseConstructorType));
                    return type.resolvedBaseConstructorType = unknownType;
                }
                type.resolvedBaseConstructorType = baseConstructorType;
            }
            return type.resolvedBaseConstructorType;
        }
        function getBaseTypes(type) {
            var isClass = type.symbol.flags & 32;
            var isInterface = type.symbol.flags & 64;
            if (!type.resolvedBaseTypes) {
                if (!isClass && !isInterface) {
                    ts.Debug.fail("type must be class or interface");
                }
                if (isClass) {
                    resolveBaseTypesOfClass(type);
                }
                if (isInterface) {
                    resolveBaseTypesOfInterface(type);
                }
            }
            return type.resolvedBaseTypes;
        }
        function resolveBaseTypesOfClass(type) {
            type.resolvedBaseTypes = type.resolvedBaseTypes || emptyArray;
            var baseConstructorType = getBaseConstructorTypeOfClass(type);
            if (!(baseConstructorType.flags & 80896)) {
                return;
            }
            var baseTypeNode = getBaseTypeNodeOfClass(type);
            var baseType;
            var originalBaseType = baseConstructorType && baseConstructorType.symbol ? getDeclaredTypeOfSymbol(baseConstructorType.symbol) : undefined;
            if (baseConstructorType.symbol && baseConstructorType.symbol.flags & 32 &&
                areAllOuterTypeParametersApplied(originalBaseType)) {
                baseType = getTypeFromClassOrInterfaceReference(baseTypeNode, baseConstructorType.symbol);
            }
            else {
                var constructors = getInstantiatedConstructorsForTypeArguments(baseConstructorType, baseTypeNode.typeArguments);
                if (!constructors.length) {
                    error(baseTypeNode.expression, ts.Diagnostics.No_base_constructor_has_the_specified_number_of_type_arguments);
                    return;
                }
                baseType = getReturnTypeOfSignature(constructors[0]);
            }
            if (baseType === unknownType) {
                return;
            }
            if (!(getTargetType(baseType).flags & (1024 | 2048))) {
                error(baseTypeNode.expression, ts.Diagnostics.Base_constructor_return_type_0_is_not_a_class_or_interface_type, typeToString(baseType));
                return;
            }
            if (type === baseType || hasBaseType(baseType, type)) {
                error(type.symbol.valueDeclaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 1));
                return;
            }
            if (type.resolvedBaseTypes === emptyArray) {
                type.resolvedBaseTypes = [baseType];
            }
            else {
                type.resolvedBaseTypes.push(baseType);
            }
        }
        function areAllOuterTypeParametersApplied(type) {
            var outerTypeParameters = type.outerTypeParameters;
            if (outerTypeParameters) {
                var last = outerTypeParameters.length - 1;
                var typeArguments = type.typeArguments;
                return outerTypeParameters[last].symbol !== typeArguments[last].symbol;
            }
            return true;
        }
        function resolveBaseTypesOfInterface(type) {
            type.resolvedBaseTypes = type.resolvedBaseTypes || emptyArray;
            for (var _i = 0, _a = type.symbol.declarations; _i < _a.length; _i++) {
                var declaration = _a[_i];
                if (declaration.kind === 221 && ts.getInterfaceBaseTypeNodes(declaration)) {
                    for (var _b = 0, _c = ts.getInterfaceBaseTypeNodes(declaration); _b < _c.length; _b++) {
                        var node = _c[_b];
                        var baseType = getTypeFromTypeNode(node);
                        if (baseType !== unknownType) {
                            if (getTargetType(baseType).flags & (1024 | 2048)) {
                                if (type !== baseType && !hasBaseType(baseType, type)) {
                                    if (type.resolvedBaseTypes === emptyArray) {
                                        type.resolvedBaseTypes = [baseType];
                                    }
                                    else {
                                        type.resolvedBaseTypes.push(baseType);
                                    }
                                }
                                else {
                                    error(declaration, ts.Diagnostics.Type_0_recursively_references_itself_as_a_base_type, typeToString(type, undefined, 1));
                                }
                            }
                            else {
                                error(node, ts.Diagnostics.An_interface_may_only_extend_a_class_or_another_interface);
                            }
                        }
                    }
                }
            }
        }
        function isIndependentInterface(symbol) {
            for (var _i = 0, _a = symbol.declarations; _i < _a.length; _i++) {
                var declaration = _a[_i];
                if (declaration.kind === 221) {
                    if (declaration.flags & 16384) {
                        return false;
                    }
                    var baseTypeNodes = ts.getInterfaceBaseTypeNodes(declaration);
                    if (baseTypeNodes) {
                        for (var _b = 0, baseTypeNodes_1 = baseTypeNodes; _b < baseTypeNodes_1.length; _b++) {
                            var node = baseTypeNodes_1[_b];
                            if (ts.isSupportedExpressionWithTypeArguments(node)) {
                                var baseSymbol = resolveEntityName(node.expression, 793056, true);
                                if (!baseSymbol || !(baseSymbol.flags & 64) || getDeclaredTypeOfClassOrInterface(baseSymbol).thisType) {
                                    return false;
                                }
                            }
                        }
                    }
                }
            }
            return true;
        }
        function getDeclaredTypeOfClassOrInterface(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.declaredType) {
                var kind = symbol.flags & 32 ? 1024 : 2048;
                var type = links.declaredType = createObjectType(kind, symbol);
                var outerTypeParameters = getOuterTypeParametersOfClassOrInterface(symbol);
                var localTypeParameters = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol);
                if (outerTypeParameters || localTypeParameters || kind === 1024 || !isIndependentInterface(symbol)) {
                    type.flags |= 4096;
                    type.typeParameters = ts.concatenate(outerTypeParameters, localTypeParameters);
                    type.outerTypeParameters = outerTypeParameters;
                    type.localTypeParameters = localTypeParameters;
                    type.instantiations = {};
                    type.instantiations[getTypeListId(type.typeParameters)] = type;
                    type.target = type;
                    type.typeArguments = type.typeParameters;
                    type.thisType = createType(512 | 33554432);
                    type.thisType.symbol = symbol;
                    type.thisType.constraint = type;
                }
            }
            return links.declaredType;
        }
        function getDeclaredTypeOfTypeAlias(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.declaredType) {
                if (!pushTypeResolution(symbol, 2)) {
                    return unknownType;
                }
                var declaration = ts.getDeclarationOfKind(symbol, 222);
                var type = getTypeFromTypeNode(declaration.type);
                if (popTypeResolution()) {
                    links.typeParameters = getLocalTypeParametersOfClassOrInterfaceOrTypeAlias(symbol);
                    if (links.typeParameters) {
                        links.instantiations = {};
                        links.instantiations[getTypeListId(links.typeParameters)] = type;
                    }
                }
                else {
                    type = unknownType;
                    error(declaration.name, ts.Diagnostics.Type_alias_0_circularly_references_itself, symbolToString(symbol));
                }
                links.declaredType = type;
            }
            return links.declaredType;
        }
        function getDeclaredTypeOfEnum(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.declaredType) {
                var type = createType(128);
                type.symbol = symbol;
                links.declaredType = type;
            }
            return links.declaredType;
        }
        function getDeclaredTypeOfTypeParameter(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.declaredType) {
                var type = createType(512);
                type.symbol = symbol;
                if (!ts.getDeclarationOfKind(symbol, 140).constraint) {
                    type.constraint = noConstraintType;
                }
                links.declaredType = type;
            }
            return links.declaredType;
        }
        function getDeclaredTypeOfAlias(symbol) {
            var links = getSymbolLinks(symbol);
            if (!links.declaredType) {
                links.declaredType = getDeclaredTypeOfSymbol(resolveAlias(symbol));
            }
            return links.declaredType;
        }
        function getDeclaredTypeOfSymbol(symbol) {
            ts.Debug.assert((symbol.flags & 16777216) === 0);
            if (symbol.flags & (32 | 64)) {
                return getDeclaredTypeOfClassOrInterface(symbol);
            }
            if (symbol.flags & 524288) {
                return getDeclaredTypeOfTypeAlias(symbol);
            }
            if (symbol.flags & 384) {
                return getDeclaredTypeOfEnum(symbol);
            }
            if (symbol.flags & 262144) {
                return getDeclaredTypeOfTypeParameter(symbol);
            }
            if (symbol.flags & 8388608) {
                return getDeclaredTypeOfAlias(symbol);
            }
            return unknownType;
        }
        function isIndependentTypeReference(node) {
            if (node.typeArguments) {
                for (var _i = 0, _a = node.typeArguments; _i < _a.length; _i++) {
                    var typeNode = _a[_i];
                    if (!isIndependentType(typeNode)) {
                        return false;
                    }
                }
            }
            return true;
        }
        function isIndependentType(node) {
            switch (node.kind) {
                case 117:
                case 131:
                case 129:
                case 120:
                case 132:
                case 103:
                case 134:
                case 93:
                case 165:
                    return true;
                case 159:
                    return isIndependentType(node.elementType);
                case 154:
                    return isIndependentTypeReference(node);
            }
            return false;
        }
        function isIndependentVariableLikeDeclaration(node) {
            return node.type && isIndependentType(node.type) || !node.type && !node.initializer;
        }
        function isIndependentFunctionLikeDeclaration(node) {
            if (node.kind !== 147 && (!node.type || !isIndependentType(node.type))) {
                return false;
            }
            for (var _i = 0, _a = node.parameters; _i < _a.length; _i++) {
                var parameter = _a[_i];
                if (!isIndependentVariableLikeDeclaration(parameter)) {
                    return false;
                }
            }
            return true;
        }
        function isIndependentMember(symbol) {
            if (symbol.declarations && symbol.declarations.length === 1) {
                var declaration = symbol.declarations[0];
                if (declaration) {
                    switch (declaration.kind) {
                        case 144:
                        case 143:
                            return isIndependentVariableLikeDeclaration(declaration);
                        case 146:
                        case 145:
                        case 147:
                            return isIndependentFunctionLikeDeclaration(declaration);
                    }
                }
            }
            return false;
        }
        function createSymbolTable(symbols) {
            var result = {};
            for (var _i = 0, symbols_1 = symbols; _i < symbols_1.length; _i++) {
                var symbol = symbols_1[_i];
                result[symbol.name] = symbol;
            }
            return result;
        }
        function createInstantiatedSymbolTable(symbols, mapper, mappingThisOnly) {
            var result = {};
            for (var _i = 0, symbols_2 = symbols; _i < symbols_2.length; _i++) {
                var symbol = symbols_2[_i];
                result[symbol.name] = mappingThisOnly && isIndependentMember(symbol) ? symbol : instantiateSymbol(symbol, mapper);
            }
            return result;
        }
        function addInheritedMembers(symbols, baseSymbols) {
            for (var _i = 0, baseSymbols_1 = baseSymbols; _i < baseSymbols_1.length; _i++) {
                var s = baseSymbols_1[_i];
                if (!ts.hasProperty(symbols, s.name)) {
                    symbols[s.name] = s;
                }
            }
        }
        function resolveDeclaredMembers(type) {
            if (!type.declaredProperties) {
                var symbol = type.symbol;
                type.declaredProperties = getNamedMembers(symbol.members);
                type.declaredCallSignatures = getSignaturesOfSymbol(symbol.members["__call"]);
                type.declaredConstructSignatures = getSignaturesOfSymbol(symbol.members["__new"]);
                type.declaredStringIndexInfo = getIndexInfoOfSymbol(symbol, 0);
                type.declaredNumberIndexInfo = getIndexInfoOfSymbol(symbol, 1);
            }
            return type;
        }
        function getTypeWithThisArgument(type, thisArgument) {
            if (type.flags & 4096) {
                return createTypeReference(type.target, ts.concatenate(type.typeArguments, [thisArgument || type.target.thisType]));
            }
            return type;
        }
        function resolveObjectTypeMembers(type, source, typeParameters, typeArguments) {
            var mapper = identityMapper;
            var members = source.symbol.members;
            var callSignatures = source.declaredCallSignatures;
            var constructSignatures = source.declaredConstructSignatures;
            var stringIndexInfo = source.declaredStringIndexInfo;
            var numberIndexInfo = source.declaredNumberIndexInfo;
            if (!ts.rangeEquals(typeParameters, typeArguments, 0, typeParameters.length)) {
                mapper = createTypeMapper(typeParameters, typeArguments);
                members = createInstantiatedSymbolTable(source.declaredProperties, mapper, typeParameters.length === 1);
                callSignatures = instantiateList(source.declaredCallSignatures, mapper, instantiateSignature);
                constructSignatures = instantiateList(source.declaredConstructSignatures, mapper, instantiateSignature);
                stringIndexInfo = instantiateIndexInfo(source.declaredStringIndexInfo, mapper);
                numberIndexInfo = instantiateIndexInfo(source.declaredNumberIndexInfo, mapper);
            }
            var baseTypes = getBaseTypes(source);
            if (baseTypes.length) {
                if (members === source.symbol.members) {
                    members = createSymbolTable(source.declaredProperties);
                }
                var thisArgument = ts.lastOrUndefined(typeArguments);
                for (var _i = 0, baseTypes_1 = baseTypes; _i < baseTypes_1.length; _i++) {
                    var baseType = baseTypes_1[_i];
                    var instantiatedBaseType = thisArgument ? getTypeWithThisArgument(instantiateType(baseType, mapper), thisArgument) : baseType;
                    addInheritedMembers(members, getPropertiesOfObjectType(instantiatedBaseType));
                    callSignatures = ts.concatenate(callSignatures, getSignaturesOfType(instantiatedBaseType, 0));
                    constructSignatures = ts.concatenate(constructSignatures, getSignaturesOfType(instantiatedBaseType, 1));
                    stringIndexInfo = stringIndexInfo || getIndexInfoOfType(instantiatedBaseType, 0);
                    numberIndexInfo = numberIndexInfo || getIndexInfoOfType(instantiatedBaseType, 1);
                }
            }
            setObjectTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
        }
        function resolveClassOrInterfaceMembers(type) {
            resolveObjectTypeMembers(type, resolveDeclaredMembers(type), emptyArray, emptyArray);
        }
        function resolveTypeReferenceMembers(type) {
            var source = resolveDeclaredMembers(type.target);
            var typeParameters = ts.concatenate(source.typeParameters, [source.thisType]);
            var typeArguments = type.typeArguments && type.typeArguments.length === typeParameters.length ?
                type.typeArguments : ts.concatenate(type.typeArguments, [type]);
            resolveObjectTypeMembers(type, source, typeParameters, typeArguments);
        }
        function createSignature(declaration, typeParameters, thisType, parameters, resolvedReturnType, typePredicate, minArgumentCount, hasRestParameter, hasStringLiterals) {
            var sig = new Signature(checker);
            sig.declaration = declaration;
            sig.typeParameters = typeParameters;
            sig.parameters = parameters;
            sig.thisType = thisType;
            sig.resolvedReturnType = resolvedReturnType;
            sig.typePredicate = typePredicate;
            sig.minArgumentCount = minArgumentCount;
            sig.hasRestParameter = hasRestParameter;
            sig.hasStringLiterals = hasStringLiterals;
            return sig;
        }
        function cloneSignature(sig) {
            return createSignature(sig.declaration, sig.typeParameters, sig.thisType, sig.parameters, sig.resolvedReturnType, sig.typePredicate, sig.minArgumentCount, sig.hasRestParameter, sig.hasStringLiterals);
        }
        function getDefaultConstructSignatures(classType) {
            var baseConstructorType = getBaseConstructorTypeOfClass(classType);
            var baseSignatures = getSignaturesOfType(baseConstructorType, 1);
            if (baseSignatures.length === 0) {
                return [createSignature(undefined, classType.localTypeParameters, undefined, emptyArray, classType, undefined, 0, false, false)];
            }
            var baseTypeNode = getBaseTypeNodeOfClass(classType);
            var typeArguments = ts.map(baseTypeNode.typeArguments, getTypeFromTypeNode);
            var typeArgCount = typeArguments ? typeArguments.length : 0;
            var result = [];
            for (var _i = 0, baseSignatures_1 = baseSignatures; _i < baseSignatures_1.length; _i++) {
                var baseSig = baseSignatures_1[_i];
                var typeParamCount = baseSig.typeParameters ? baseSig.typeParameters.length : 0;
                if (typeParamCount === typeArgCount) {
                    var sig = typeParamCount ? getSignatureInstantiation(baseSig, typeArguments) : cloneSignature(baseSig);
                    sig.typeParameters = classType.localTypeParameters;
                    sig.resolvedReturnType = classType;
                    result.push(sig);
                }
            }
            return result;
        }
        function createTupleTypeMemberSymbols(memberTypes) {
            var members = {};
            for (var i = 0; i < memberTypes.length; i++) {
                var symbol = createSymbol(4 | 67108864, "" + i);
                symbol.type = memberTypes[i];
                members[i] = symbol;
            }
            return members;
        }
        function resolveTupleTypeMembers(type) {
            var arrayElementType = getUnionType(type.elementTypes, true);
            var arrayType = resolveStructuredTypeMembers(createTypeFromGenericGlobalType(globalArrayType, [arrayElementType, type]));
            var members = createTupleTypeMemberSymbols(type.elementTypes);
            addInheritedMembers(members, arrayType.properties);
            setObjectTypeMembers(type, members, arrayType.callSignatures, arrayType.constructSignatures, arrayType.stringIndexInfo, arrayType.numberIndexInfo);
        }
        function findMatchingSignature(signatureList, signature, partialMatch, ignoreThisTypes, ignoreReturnTypes) {
            for (var _i = 0, signatureList_1 = signatureList; _i < signatureList_1.length; _i++) {
                var s = signatureList_1[_i];
                if (compareSignaturesIdentical(s, signature, partialMatch, ignoreThisTypes, ignoreReturnTypes, compareTypesIdentical)) {
                    return s;
                }
            }
        }
        function findMatchingSignatures(signatureLists, signature, listIndex) {
            if (signature.typeParameters) {
                if (listIndex > 0) {
                    return undefined;
                }
                for (var i = 1; i < signatureLists.length; i++) {
                    if (!findMatchingSignature(signatureLists[i], signature, false, false, false)) {
                        return undefined;
                    }
                }
                return [signature];
            }
            var result = undefined;
            for (var i = 0; i < signatureLists.length; i++) {
                var match = i === listIndex ? signature : findMatchingSignature(signatureLists[i], signature, true, true, true);
                if (!match) {
                    return undefined;
                }
                if (!ts.contains(result, match)) {
                    (result || (result = [])).push(match);
                }
            }
            return result;
        }
        function getUnionSignatures(types, kind) {
            var signatureLists = ts.map(types, function (t) { return getSignaturesOfType(t, kind); });
            var result = undefined;
            for (var i = 0; i < signatureLists.length; i++) {
                for (var _i = 0, _a = signatureLists[i]; _i < _a.length; _i++) {
                    var signature = _a[_i];
                    if (!result || !findMatchingSignature(result, signature, false, true, true)) {
                        var unionSignatures = findMatchingSignatures(signatureLists, signature, i);
                        if (unionSignatures) {
                            var s = signature;
                            if (unionSignatures.length > 1) {
                                s = cloneSignature(signature);
                                if (ts.forEach(unionSignatures, function (sig) { return sig.thisType; })) {
                                    s.thisType = getUnionType(ts.map(unionSignatures, function (sig) { return sig.thisType || anyType; }));
                                }
                                s.resolvedReturnType = undefined;
                                s.unionSignatures = unionSignatures;
                            }
                            (result || (result = [])).push(s);
                        }
                    }
                }
            }
            return result || emptyArray;
        }
        function getUnionIndexInfo(types, kind) {
            var indexTypes = [];
            var isAnyReadonly = false;
            for (var _i = 0, types_1 = types; _i < types_1.length; _i++) {
                var type = types_1[_i];
                var indexInfo = getIndexInfoOfType(type, kind);
                if (!indexInfo) {
                    return undefined;
                }
                indexTypes.push(indexInfo.type);
                isAnyReadonly = isAnyReadonly || indexInfo.isReadonly;
            }
            return createIndexInfo(getUnionType(indexTypes), isAnyReadonly);
        }
        function resolveUnionTypeMembers(type) {
            var callSignatures = getUnionSignatures(type.types, 0);
            var constructSignatures = getUnionSignatures(type.types, 1);
            var stringIndexInfo = getUnionIndexInfo(type.types, 0);
            var numberIndexInfo = getUnionIndexInfo(type.types, 1);
            setObjectTypeMembers(type, emptySymbols, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
        }
        function intersectTypes(type1, type2) {
            return !type1 ? type2 : !type2 ? type1 : getIntersectionType([type1, type2]);
        }
        function intersectIndexInfos(info1, info2) {
            return !info1 ? info2 : !info2 ? info1 : createIndexInfo(getIntersectionType([info1.type, info2.type]), info1.isReadonly && info2.isReadonly);
        }
        function resolveIntersectionTypeMembers(type) {
            var callSignatures = emptyArray;
            var constructSignatures = emptyArray;
            var stringIndexInfo = undefined;
            var numberIndexInfo = undefined;
            for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
                var t = _a[_i];
                callSignatures = ts.concatenate(callSignatures, getSignaturesOfType(t, 0));
                constructSignatures = ts.concatenate(constructSignatures, getSignaturesOfType(t, 1));
                stringIndexInfo = intersectIndexInfos(stringIndexInfo, getIndexInfoOfType(t, 0));
                numberIndexInfo = intersectIndexInfos(numberIndexInfo, getIndexInfoOfType(t, 1));
            }
            setObjectTypeMembers(type, emptySymbols, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
        }
        function resolveAnonymousTypeMembers(type) {
            var symbol = type.symbol;
            if (type.target) {
                var members = createInstantiatedSymbolTable(getPropertiesOfObjectType(type.target), type.mapper, false);
                var callSignatures = instantiateList(getSignaturesOfType(type.target, 0), type.mapper, instantiateSignature);
                var constructSignatures = instantiateList(getSignaturesOfType(type.target, 1), type.mapper, instantiateSignature);
                var stringIndexInfo = instantiateIndexInfo(getIndexInfoOfType(type.target, 0), type.mapper);
                var numberIndexInfo = instantiateIndexInfo(getIndexInfoOfType(type.target, 1), type.mapper);
                setObjectTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
            }
            else if (symbol.flags & 2048) {
                var members = symbol.members;
                var callSignatures = getSignaturesOfSymbol(members["__call"]);
                var constructSignatures = getSignaturesOfSymbol(members["__new"]);
                var stringIndexInfo = getIndexInfoOfSymbol(symbol, 0);
                var numberIndexInfo = getIndexInfoOfSymbol(symbol, 1);
                setObjectTypeMembers(type, members, callSignatures, constructSignatures, stringIndexInfo, numberIndexInfo);
            }
            else {
                var members = emptySymbols;
                var constructSignatures = emptyArray;
                if (symbol.flags & 1952) {
                    members = getExportsOfSymbol(symbol);
                }
                if (symbol.flags & 32) {
                    var classType = getDeclaredTypeOfClassOrInterface(symbol);
                    constructSignatures = getSignaturesOfSymbol(symbol.members["__constructor"]);
                    if (!constructSignatures.length) {
                        constructSignatures = getDefaultConstructSignatures(classType);
                    }
                    var baseConstructorType = getBaseConstructorTypeOfClass(classType);
                    if (baseConstructorType.flags & 80896) {
                        members = createSymbolTable(getNamedMembers(members));
                        addInheritedMembers(members, getPropertiesOfObjectType(baseConstructorType));
                    }
                }
                var numberIndexInfo = symbol.flags & 384 ? enumNumberIndexInfo : undefined;
                setObjectTypeMembers(type, members, emptyArray, constructSignatures, undefined, numberIndexInfo);
                if (symbol.flags & (16 | 8192)) {
                    type.callSignatures = getSignaturesOfSymbol(symbol);
                }
            }
        }
        function resolveStructuredTypeMembers(type) {
            if (!type.members) {
                if (type.flags & 4096) {
                    resolveTypeReferenceMembers(type);
                }
                else if (type.flags & (1024 | 2048)) {
                    resolveClassOrInterfaceMembers(type);
                }
                else if (type.flags & 65536) {
                    resolveAnonymousTypeMembers(type);
                }
                else if (type.flags & 8192) {
                    resolveTupleTypeMembers(type);
                }
                else if (type.flags & 16384) {
                    resolveUnionTypeMembers(type);
                }
                else if (type.flags & 32768) {
                    resolveIntersectionTypeMembers(type);
                }
            }
            return type;
        }
        function getPropertiesOfObjectType(type) {
            if (type.flags & 80896) {
                return resolveStructuredTypeMembers(type).properties;
            }
            return emptyArray;
        }
        function getPropertyOfObjectType(type, name) {
            if (type.flags & 80896) {
                var resolved = resolveStructuredTypeMembers(type);
                if (ts.hasProperty(resolved.members, name)) {
                    var symbol = resolved.members[name];
                    if (symbolIsValue(symbol)) {
                        return symbol;
                    }
                }
            }
        }
        function getPropertiesOfUnionOrIntersectionType(type) {
            for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
                var current = _a[_i];
                for (var _b = 0, _c = getPropertiesOfType(current); _b < _c.length; _b++) {
                    var prop = _c[_b];
                    getPropertyOfUnionOrIntersectionType(type, prop.name);
                }
                if (type.flags & 16384) {
                    break;
                }
            }
            return type.resolvedProperties ? symbolsToArray(type.resolvedProperties) : emptyArray;
        }
        function getPropertiesOfType(type) {
            type = getApparentType(type);
            return type.flags & 49152 ? getPropertiesOfUnionOrIntersectionType(type) : getPropertiesOfObjectType(type);
        }
        function getApparentTypeOfTypeParameter(type) {
            if (!type.resolvedApparentType) {
                var constraintType = getConstraintOfTypeParameter(type);
                while (constraintType && constraintType.flags & 512) {
                    constraintType = getConstraintOfTypeParameter(constraintType);
                }
                type.resolvedApparentType = getTypeWithThisArgument(constraintType || emptyObjectType, type);
            }
            return type.resolvedApparentType;
        }
        function getApparentType(type) {
            if (type.flags & 512) {
                type = getApparentTypeOfTypeParameter(type);
            }
            if (type.flags & 258) {
                type = globalStringType;
            }
            else if (type.flags & 132) {
                type = globalNumberType;
            }
            else if (type.flags & 8) {
                type = globalBooleanType;
            }
            else if (type.flags & 16777216) {
                type = getGlobalESSymbolType();
            }
            return type;
        }
        function createUnionOrIntersectionProperty(containingType, name) {
            var types = containingType.types;
            var props;
            var commonFlags = (containingType.flags & 32768) ? 536870912 : 0;
            for (var _i = 0, types_2 = types; _i < types_2.length; _i++) {
                var current = types_2[_i];
                var type = getApparentType(current);
                if (type !== unknownType) {
                    var prop = getPropertyOfType(type, name);
                    if (prop && !(getDeclarationFlagsFromSymbol(prop) & (8 | 16))) {
                        commonFlags &= prop.flags;
                        if (!props) {
                            props = [prop];
                        }
                        else if (!ts.contains(props, prop)) {
                            props.push(prop);
                        }
                    }
                    else if (containingType.flags & 16384) {
                        return undefined;
                    }
                }
            }
            if (!props) {
                return undefined;
            }
            if (props.length === 1) {
                return props[0];
            }
            var propTypes = [];
            var declarations = [];
            for (var _a = 0, props_1 = props; _a < props_1.length; _a++) {
                var prop = props_1[_a];
                if (prop.declarations) {
                    ts.addRange(declarations, prop.declarations);
                }
                propTypes.push(getTypeOfSymbol(prop));
            }
            var result = createSymbol(4 |
                67108864 |
                268435456 |
                commonFlags, name);
            result.containingType = containingType;
            result.declarations = declarations;
            result.type = containingType.flags & 16384 ? getUnionType(propTypes) : getIntersectionType(propTypes);
            return result;
        }
        function getPropertyOfUnionOrIntersectionType(type, name) {
            var properties = type.resolvedProperties || (type.resolvedProperties = {});
            if (ts.hasProperty(properties, name)) {
                return properties[name];
            }
            var property = createUnionOrIntersectionProperty(type, name);
            if (property) {
                properties[name] = property;
            }
            return property;
        }
        function getPropertyOfType(type, name) {
            type = getApparentType(type);
            if (type.flags & 80896) {
                var resolved = resolveStructuredTypeMembers(type);
                if (ts.hasProperty(resolved.members, name)) {
                    var symbol = resolved.members[name];
                    if (symbolIsValue(symbol)) {
                        return symbol;
                    }
                }
                if (resolved === anyFunctionType || resolved.callSignatures.length || resolved.constructSignatures.length) {
                    var symbol = getPropertyOfObjectType(globalFunctionType, name);
                    if (symbol) {
                        return symbol;
                    }
                }
                return getPropertyOfObjectType(globalObjectType, name);
            }
            if (type.flags & 49152) {
                return getPropertyOfUnionOrIntersectionType(type, name);
            }
            return undefined;
        }
        function getSignaturesOfStructuredType(type, kind) {
            if (type.flags & 130048) {
                var resolved = resolveStructuredTypeMembers(type);
                return kind === 0 ? resolved.callSignatures : resolved.constructSignatures;
            }
            return emptyArray;
        }
        function getSignaturesOfType(type, kind) {
            return getSignaturesOfStructuredType(getApparentType(type), kind);
        }
        function getIndexInfoOfStructuredType(type, kind) {
            if (type.flags & 130048) {
                var resolved = resolveStructuredTypeMembers(type);
                return kind === 0 ? resolved.stringIndexInfo : resolved.numberIndexInfo;
            }
        }
        function getIndexTypeOfStructuredType(type, kind) {
            var info = getIndexInfoOfStructuredType(type, kind);
            return info && info.type;
        }
        function getIndexInfoOfType(type, kind) {
            return getIndexInfoOfStructuredType(getApparentType(type), kind);
        }
        function getIndexTypeOfType(type, kind) {
            return getIndexTypeOfStructuredType(getApparentType(type), kind);
        }
        function getImplicitIndexTypeOfType(type, kind) {
            if (isObjectLiteralType(type)) {
                var propTypes = [];
                for (var _i = 0, _a = getPropertiesOfType(type); _i < _a.length; _i++) {
                    var prop = _a[_i];
                    if (kind === 0 || isNumericLiteralName(prop.name)) {
                        propTypes.push(getTypeOfSymbol(prop));
                    }
                }
                if (propTypes.length) {
                    return getUnionType(propTypes);
                }
            }
            return undefined;
        }
        function getTypeParametersFromJSDocTemplate(declaration) {
            if (declaration.flags & 134217728) {
                var templateTag = ts.getJSDocTemplateTag(declaration);
                if (templateTag) {
                    return getTypeParametersFromDeclaration(templateTag.typeParameters);
                }
            }
            return undefined;
        }
        function getTypeParametersFromDeclaration(typeParameterDeclarations) {
            var result = [];
            ts.forEach(typeParameterDeclarations, function (node) {
                var tp = getDeclaredTypeOfTypeParameter(node.symbol);
                if (!ts.contains(result, tp)) {
                    result.push(tp);
                }
            });
            return result;
        }
        function symbolsToArray(symbols) {
            var result = [];
            for (var id in symbols) {
                if (!isReservedMemberName(id)) {
                    result.push(symbols[id]);
                }
            }
            return result;
        }
        function isOptionalParameter(node) {
            if (node.flags & 134217728) {
                if (node.type && node.type.kind === 267) {
                    return true;
                }
                var paramTag = ts.getCorrespondingJSDocParameterTag(node);
                if (paramTag) {
                    if (paramTag.isBracketed) {
                        return true;
                    }
                    if (paramTag.typeExpression) {
                        return paramTag.typeExpression.type.kind === 267;
                    }
                }
            }
            if (ts.hasQuestionToken(node)) {
                return true;
            }
            if (node.initializer) {
                var signatureDeclaration = node.parent;
                var signature = getSignatureFromDeclaration(signatureDeclaration);
                var parameterIndex = ts.indexOf(signatureDeclaration.parameters, node);
                ts.Debug.assert(parameterIndex >= 0);
                return parameterIndex >= signature.minArgumentCount;
            }
            return false;
        }
        function createTypePredicateFromTypePredicateNode(node) {
            if (node.parameterName.kind === 69) {
                var parameterName = node.parameterName;
                return {
                    kind: 1,
                    parameterName: parameterName ? parameterName.text : undefined,
                    parameterIndex: parameterName ? getTypePredicateParameterIndex(node.parent.parameters, parameterName) : undefined,
                    type: getTypeFromTypeNode(node.type)
                };
            }
            else {
                return {
                    kind: 0,
                    type: getTypeFromTypeNode(node.type)
                };
            }
        }
        function getSignatureFromDeclaration(declaration) {
            var links = getNodeLinks(declaration);
            if (!links.resolvedSignature) {
                var classType = declaration.kind === 147 ?
                    getDeclaredTypeOfClassOrInterface(getMergedSymbol(declaration.parent.symbol))
                    : undefined;
                var typeParameters = classType ? classType.localTypeParameters :
                    declaration.typeParameters ? getTypeParametersFromDeclaration(declaration.typeParameters) :
                        getTypeParametersFromJSDocTemplate(declaration);
                var parameters = [];
                var hasStringLiterals = false;
                var minArgumentCount = -1;
                var thisType = undefined;
                var hasThisParameter = void 0;
                var isJSConstructSignature = ts.isJSDocConstructSignature(declaration);
                var returnType = undefined;
                var typePredicate = undefined;
                for (var i = isJSConstructSignature ? 1 : 0, n = declaration.parameters.length; i < n; i++) {
                    var param = declaration.parameters[i];
                    var paramSymbol = param.symbol;
                    if (paramSymbol && !!(paramSymbol.flags & 4) && !ts.isBindingPattern(param.name)) {
                        var resolvedSymbol = resolveName(param, paramSymbol.name, 107455, undefined, undefined);
                        paramSymbol = resolvedSymbol;
                    }
                    if (i === 0 && paramSymbol.name === "this") {
                        hasThisParameter = true;
                        thisType = param.type ? getTypeFromTypeNode(param.type) : unknownType;
                    }
                    else {
                        parameters.push(paramSymbol);
                    }
                    if (param.type && param.type.kind === 165) {
                        hasStringLiterals = true;
                    }
                    if (param.initializer || param.questionToken || param.dotDotDotToken) {
                        if (minArgumentCount < 0) {
                            minArgumentCount = i - (hasThisParameter ? 1 : 0);
                        }
                    }
                    else {
                        minArgumentCount = -1;
                    }
                }
                if (minArgumentCount < 0) {
                    minArgumentCount = declaration.parameters.length - (hasThisParameter ? 1 : 0);
                }
                if (isJSConstructSignature) {
                    minArgumentCount--;
                    returnType = getTypeFromTypeNode(declaration.parameters[0].type);
                }
                else if (classType) {
                    returnType = classType;
                }
                else if (declaration.type) {
                    returnType = getTypeFromTypeNode(declaration.type);
                    if (declaration.type.kind === 153) {
                        typePredicate = createTypePredicateFromTypePredicateNode(declaration.type);
                    }
                }
                else {
                    if (declaration.flags & 134217728) {
                        var type = getReturnTypeFromJSDocComment(declaration);
                        if (type && type !== unknownType) {
                            returnType = type;
                        }
                    }
                    if (declaration.kind === 148 && !ts.hasDynamicName(declaration)) {
                        var setter = ts.getDeclarationOfKind(declaration.symbol, 149);
                        returnType = getAnnotatedAccessorType(setter);
                    }
                    if (!returnType && ts.nodeIsMissing(declaration.body)) {
                        returnType = anyType;
                    }
                }
                links.resolvedSignature = createSignature(declaration, typeParameters, thisType, parameters, returnType, typePredicate, minArgumentCount, ts.hasRestParameter(declaration), hasStringLiterals);
            }
            return links.resolvedSignature;
        }
        function getSignaturesOfSymbol(symbol) {
            if (!symbol)
                return emptyArray;
            var result = [];
            for (var i = 0, len = symbol.declarations.length; i < len; i++) {
                var node = symbol.declarations[i];
                switch (node.kind) {
                    case 155:
                    case 156:
                    case 219:
                    case 146:
                    case 145:
                    case 147:
                    case 150:
                    case 151:
                    case 152:
                    case 148:
                    case 149:
                    case 178:
                    case 179:
                    case 268:
                        if (i > 0 && node.body) {
                            var previous = symbol.declarations[i - 1];
                            if (node.parent === previous.parent && node.kind === previous.kind && node.pos === previous.end) {
                                break;
                            }
                        }
                        result.push(getSignatureFromDeclaration(node));
                }
            }
            return result;
        }
        function resolveExternalModuleTypeByLiteral(name) {
            var moduleSym = resolveExternalModuleName(name, name);
            if (moduleSym) {
                var resolvedModuleSymbol = resolveExternalModuleSymbol(moduleSym);
                if (resolvedModuleSymbol) {
                    return getTypeOfSymbol(resolvedModuleSymbol);
                }
            }
            return anyType;
        }
        function getReturnTypeOfSignature(signature) {
            if (!signature.resolvedReturnType) {
                if (!pushTypeResolution(signature, 3)) {
                    return unknownType;
                }
                var type = void 0;
                if (signature.target) {
                    type = instantiateType(getReturnTypeOfSignature(signature.target), signature.mapper);
                }
                else if (signature.unionSignatures) {
                    type = getUnionType(ts.map(signature.unionSignatures, getReturnTypeOfSignature));
                }
                else {
                    type = getReturnTypeFromBody(signature.declaration);
                }
                if (!popTypeResolution()) {
                    type = anyType;
                    if (compilerOptions.noImplicitAny) {
                        var declaration = signature.declaration;
                        if (declaration.name) {
                            error(declaration.name, ts.Diagnostics._0_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions, ts.declarationNameToString(declaration.name));
                        }
                        else {
                            error(declaration, ts.Diagnostics.Function_implicitly_has_return_type_any_because_it_does_not_have_a_return_type_annotation_and_is_referenced_directly_or_indirectly_in_one_of_its_return_expressions);
                        }
                    }
                }
                signature.resolvedReturnType = type;
            }
            return signature.resolvedReturnType;
        }
        function getRestTypeOfSignature(signature) {
            if (signature.hasRestParameter) {
                var type = getTypeOfSymbol(ts.lastOrUndefined(signature.parameters));
                if (type.flags & 4096 && type.target === globalArrayType) {
                    return type.typeArguments[0];
                }
            }
            return anyType;
        }
        function getSignatureInstantiation(signature, typeArguments) {
            return instantiateSignature(signature, createTypeMapper(signature.typeParameters, typeArguments), true);
        }
        function getErasedSignature(signature) {
            if (!signature.typeParameters)
                return signature;
            if (!signature.erasedSignatureCache) {
                if (signature.target) {
                    signature.erasedSignatureCache = instantiateSignature(getErasedSignature(signature.target), signature.mapper);
                }
                else {
                    signature.erasedSignatureCache = instantiateSignature(signature, createTypeEraser(signature.typeParameters), true);
                }
            }
            return signature.erasedSignatureCache;
        }
        function getOrCreateTypeFromSignature(signature) {
            if (!signature.isolatedSignatureType) {
                var isConstructor = signature.declaration.kind === 147 || signature.declaration.kind === 151;
                var type = createObjectType(65536 | 262144);
                type.members = emptySymbols;
                type.properties = emptyArray;
                type.callSignatures = !isConstructor ? [signature] : emptyArray;
                type.constructSignatures = isConstructor ? [signature] : emptyArray;
                signature.isolatedSignatureType = type;
            }
            return signature.isolatedSignatureType;
        }
        function getIndexSymbol(symbol) {
            return symbol.members["__index"];
        }
        function getIndexDeclarationOfSymbol(symbol, kind) {
            var syntaxKind = kind === 1 ? 129 : 131;
            var indexSymbol = getIndexSymbol(symbol);
            if (indexSymbol) {
                for (var _i = 0, _a = indexSymbol.declarations; _i < _a.length; _i++) {
                    var decl = _a[_i];
                    var node = decl;
                    if (node.parameters.length === 1) {
                        var parameter = node.parameters[0];
                        if (parameter && parameter.type && parameter.type.kind === syntaxKind) {
                            return node;
                        }
                    }
                }
            }
            return undefined;
        }
        function createIndexInfo(type, isReadonly, declaration) {
            return { type: type, isReadonly: isReadonly, declaration: declaration };
        }
        function getIndexInfoOfSymbol(symbol, kind) {
            var declaration = getIndexDeclarationOfSymbol(symbol, kind);
            if (declaration) {
                return createIndexInfo(declaration.type ? getTypeFromTypeNode(declaration.type) : anyType, (declaration.flags & 64) !== 0, declaration);
            }
            return undefined;
        }
        function getConstraintDeclaration(type) {
            return ts.getDeclarationOfKind(type.symbol, 140).constraint;
        }
        function hasConstraintReferenceTo(type, target) {
            var checked;
            while (type && !(type.flags & 33554432) && type.flags & 512 && !ts.contains(checked, type)) {
                if (type === target) {
                    return true;
                }
                (checked || (checked = [])).push(type);
                var constraintDeclaration = getConstraintDeclaration(type);
                type = constraintDeclaration && getTypeFromTypeNode(constraintDeclaration);
            }
            return false;
        }
        function getConstraintOfTypeParameter(typeParameter) {
            if (!typeParameter.constraint) {
                if (typeParameter.target) {
                    var targetConstraint = getConstraintOfTypeParameter(typeParameter.target);
                    typeParameter.constraint = targetConstraint ? instantiateType(targetConstraint, typeParameter.mapper) : noConstraintType;
                }
                else {
                    var constraintDeclaration = getConstraintDeclaration(typeParameter);
                    var constraint = getTypeFromTypeNode(constraintDeclaration);
                    if (hasConstraintReferenceTo(constraint, typeParameter)) {
                        error(constraintDeclaration, ts.Diagnostics.Type_parameter_0_has_a_circular_constraint, typeToString(typeParameter));
                        constraint = unknownType;
                    }
                    typeParameter.constraint = constraint;
                }
            }
            return typeParameter.constraint === noConstraintType ? undefined : typeParameter.constraint;
        }
        function getParentSymbolOfTypeParameter(typeParameter) {
            return getSymbolOfNode(ts.getDeclarationOfKind(typeParameter.symbol, 140).parent);
        }
        function getTypeListId(types) {
            if (types) {
                switch (types.length) {
                    case 1:
                        return "" + types[0].id;
                    case 2:
                        return types[0].id + "," + types[1].id;
                    default:
                        var result = "";
                        for (var i = 0; i < types.length; i++) {
                            if (i > 0) {
                                result += ",";
                            }
                            result += types[i].id;
                        }
                        return result;
                }
            }
            return "";
        }
        function getPropagatingFlagsOfTypes(types, excludeKinds) {
            var result = 0;
            for (var _i = 0, types_3 = types; _i < types_3.length; _i++) {
                var type = types_3[_i];
                if (!(type.flags & excludeKinds)) {
                    result |= type.flags;
                }
            }
            return result & 14680064;
        }
        function createTypeReference(target, typeArguments) {
            var id = getTypeListId(typeArguments);
            var type = target.instantiations[id];
            if (!type) {
                var propagatedFlags = typeArguments ? getPropagatingFlagsOfTypes(typeArguments, 0) : 0;
                var flags = 4096 | propagatedFlags;
                type = target.instantiations[id] = createObjectType(flags, target.symbol);
                type.target = target;
                type.typeArguments = typeArguments;
            }
            return type;
        }
        function getTypeFromClassOrInterfaceReference(node, symbol) {
            var type = getDeclaredTypeOfSymbol(getMergedSymbol(symbol));
            var typeParameters = type.localTypeParameters;
            if (typeParameters) {
                if (!node.typeArguments || node.typeArguments.length !== typeParameters.length) {
                    error(node, ts.Diagnostics.Generic_type_0_requires_1_type_argument_s, typeToString(type, undefined, 1), typeParameters.length);
                    return unknownType;
                }
                return createTypeReference(type, ts.concatenate(type.outerTypeParameters, ts.map(node.typeArguments, getTypeFromTypeNode)));
            }
            if (node.typeArguments) {
                error(node, ts.Diagnostics.Type_0_is_not_generic, typeToString(type));
                return unknownType;
            }
            return type;
        }
        function getTypeFromTypeAliasReference(node, symbol) {
            var type = getDeclaredTypeOfSymbol(symbol);
            var links = getSymbolLinks(symbol);
            var typeParameters = links.typeParameters;
            if (typeParameters) {
                if (!node.typeArguments || node.typeArguments.length !== typeParameters.length) {
                    error(node, ts.Diagnostics.Generic_type_0_requires_1_type_argument_s, symbolToString(symbol), typeParameters.length);
                    return unknownType;
                }
                var typeArguments = ts.map(node.typeArguments, getTypeFromTypeNode);
                var id = getTypeListId(typeArguments);
                return links.instantiations[id] || (links.instantiations[id] = instantiateType(type, createTypeMapper(typeParameters, typeArguments)));
            }
            if (node.typeArguments) {
                error(node, ts.Diagnostics.Type_0_is_not_generic, symbolToString(symbol));
                return unknownType;
            }
            return type;
        }
        function getTypeFromNonGenericTypeReference(node, symbol) {
            if (node.typeArguments) {
                error(node, ts.Diagnostics.Type_0_is_not_generic, symbolToString(symbol));
                return unknownType;
            }
            return getDeclaredTypeOfSymbol(symbol);
        }
        function getTypeReferenceName(node) {
            switch (node.kind) {
                case 154:
                    return node.typeName;
                case 266:
                    return node.name;
                case 193:
                    if (ts.isSupportedExpressionWithTypeArguments(node)) {
                        return node.expression;
                    }
            }
            return undefined;
        }
        function resolveTypeReferenceName(node, typeReferenceName) {
            if (!typeReferenceName) {
                return unknownSymbol;
            }
            return resolveEntityName(typeReferenceName, 793056) || unknownSymbol;
        }
        function getTypeReferenceType(node, symbol) {
            if (symbol === unknownSymbol) {
                return unknownType;
            }
            if (symbol.flags & (32 | 64)) {
                return getTypeFromClassOrInterfaceReference(node, symbol);
            }
            if (symbol.flags & 524288) {
                return getTypeFromTypeAliasReference(node, symbol);
            }
            if (symbol.flags & 107455 && node.kind === 266) {
                return getTypeOfSymbol(symbol);
            }
            return getTypeFromNonGenericTypeReference(node, symbol);
        }
        function getTypeFromTypeReference(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                var symbol = void 0;
                var type = void 0;
                if (node.kind === 266) {
                    var typeReferenceName = getTypeReferenceName(node);
                    symbol = resolveTypeReferenceName(node, typeReferenceName);
                    type = getTypeReferenceType(node, symbol);
                    links.resolvedSymbol = symbol;
                    links.resolvedType = type;
                }
                else {
                    var typeNameOrExpression = node.kind === 154 ? node.typeName :
                        ts.isSupportedExpressionWithTypeArguments(node) ? node.expression :
                            undefined;
                    symbol = typeNameOrExpression && resolveEntityName(typeNameOrExpression, 793056) || unknownSymbol;
                    type = symbol === unknownSymbol ? unknownType :
                        symbol.flags & (32 | 64) ? getTypeFromClassOrInterfaceReference(node, symbol) :
                            symbol.flags & 524288 ? getTypeFromTypeAliasReference(node, symbol) :
                                getTypeFromNonGenericTypeReference(node, symbol);
                }
                links.resolvedSymbol = symbol;
                links.resolvedType = type;
            }
            return links.resolvedType;
        }
        function getTypeFromTypeQueryNode(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                links.resolvedType = getWidenedType(checkExpression(node.exprName));
            }
            return links.resolvedType;
        }
        function getTypeOfGlobalSymbol(symbol, arity) {
            function getTypeDeclaration(symbol) {
                var declarations = symbol.declarations;
                for (var _i = 0, declarations_3 = declarations; _i < declarations_3.length; _i++) {
                    var declaration = declarations_3[_i];
                    switch (declaration.kind) {
                        case 220:
                        case 221:
                        case 223:
                            return declaration;
                    }
                }
            }
            if (!symbol) {
                return arity ? emptyGenericType : emptyObjectType;
            }
            var type = getDeclaredTypeOfSymbol(symbol);
            if (!(type.flags & 80896)) {
                error(getTypeDeclaration(symbol), ts.Diagnostics.Global_type_0_must_be_a_class_or_interface_type, symbol.name);
                return arity ? emptyGenericType : emptyObjectType;
            }
            if ((type.typeParameters ? type.typeParameters.length : 0) !== arity) {
                error(getTypeDeclaration(symbol), ts.Diagnostics.Global_type_0_must_have_1_type_parameter_s, symbol.name, arity);
                return arity ? emptyGenericType : emptyObjectType;
            }
            return type;
        }
        function getGlobalValueSymbol(name) {
            return getGlobalSymbol(name, 107455, ts.Diagnostics.Cannot_find_global_value_0);
        }
        function getGlobalTypeSymbol(name) {
            return getGlobalSymbol(name, 793056, ts.Diagnostics.Cannot_find_global_type_0);
        }
        function getGlobalSymbol(name, meaning, diagnostic) {
            return resolveName(undefined, name, meaning, diagnostic, name);
        }
        function getGlobalType(name, arity) {
            if (arity === void 0) { arity = 0; }
            return getTypeOfGlobalSymbol(getGlobalTypeSymbol(name), arity);
        }
        function getExportedTypeFromNamespace(namespace, name) {
            var namespaceSymbol = getGlobalSymbol(namespace, 1536, undefined);
            var typeSymbol = namespaceSymbol && getSymbol(namespaceSymbol.exports, name, 793056);
            return typeSymbol && getDeclaredTypeOfSymbol(typeSymbol);
        }
        function createTypedPropertyDescriptorType(propertyType) {
            var globalTypedPropertyDescriptorType = getGlobalTypedPropertyDescriptorType();
            return globalTypedPropertyDescriptorType !== emptyGenericType
                ? createTypeReference(globalTypedPropertyDescriptorType, [propertyType])
                : emptyObjectType;
        }
        function createTypeFromGenericGlobalType(genericGlobalType, typeArguments) {
            return genericGlobalType !== emptyGenericType ? createTypeReference(genericGlobalType, typeArguments) : emptyObjectType;
        }
        function createIterableType(elementType) {
            return createTypeFromGenericGlobalType(getGlobalIterableType(), [elementType]);
        }
        function createIterableIteratorType(elementType) {
            return createTypeFromGenericGlobalType(getGlobalIterableIteratorType(), [elementType]);
        }
        function createArrayType(elementType) {
            return createTypeFromGenericGlobalType(globalArrayType, [elementType]);
        }
        function getTypeFromArrayTypeNode(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                links.resolvedType = createArrayType(getTypeFromTypeNode(node.elementType));
            }
            return links.resolvedType;
        }
        function createTupleType(elementTypes) {
            var id = getTypeListId(elementTypes);
            return tupleTypes[id] || (tupleTypes[id] = createNewTupleType(elementTypes));
        }
        function createNewTupleType(elementTypes) {
            var propagatedFlags = getPropagatingFlagsOfTypes(elementTypes, 0);
            var type = createObjectType(8192 | propagatedFlags);
            type.elementTypes = elementTypes;
            return type;
        }
        function getTypeFromTupleTypeNode(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                links.resolvedType = createTupleType(ts.map(node.elementTypes, getTypeFromTypeNode));
            }
            return links.resolvedType;
        }
        function addTypeToSet(typeSet, type, typeSetKind) {
            if (type.flags & typeSetKind) {
                addTypesToSet(typeSet, type.types, typeSetKind);
            }
            else if (type.flags & (1 | 32 | 64)) {
                if (type.flags & 1)
                    typeSet.containsAny = true;
                if (type.flags & 32)
                    typeSet.containsUndefined = true;
                if (type.flags & 64)
                    typeSet.containsNull = true;
            }
            else if (type !== emptyUnionType && !ts.contains(typeSet, type)) {
                typeSet.push(type);
            }
        }
        function addTypesToSet(typeSet, types, typeSetKind) {
            for (var _i = 0, types_4 = types; _i < types_4.length; _i++) {
                var type = types_4[_i];
                addTypeToSet(typeSet, type, typeSetKind);
            }
        }
        function isSubtypeOfAny(candidate, types) {
            for (var i = 0, len = types.length; i < len; i++) {
                if (candidate !== types[i] && isTypeSubtypeOf(candidate, types[i])) {
                    return true;
                }
            }
            return false;
        }
        function removeSubtypes(types) {
            var i = types.length;
            while (i > 0) {
                i--;
                if (isSubtypeOfAny(types[i], types)) {
                    types.splice(i, 1);
                }
            }
        }
        function getUnionType(types, noSubtypeReduction) {
            if (types.length === 0) {
                return emptyUnionType;
            }
            var typeSet = [];
            addTypesToSet(typeSet, types, 16384);
            if (typeSet.containsAny) {
                return anyType;
            }
            if (strictNullChecks) {
                if (typeSet.containsNull)
                    typeSet.push(nullType);
                if (typeSet.containsUndefined)
                    typeSet.push(undefinedType);
            }
            if (!noSubtypeReduction) {
                removeSubtypes(typeSet);
            }
            if (typeSet.length === 0) {
                return typeSet.containsNull ? nullType :
                    typeSet.containsUndefined ? undefinedType :
                        emptyUnionType;
            }
            else if (typeSet.length === 1) {
                return typeSet[0];
            }
            var id = getTypeListId(typeSet);
            var type = unionTypes[id];
            if (!type) {
                var propagatedFlags = getPropagatingFlagsOfTypes(typeSet, 96);
                type = unionTypes[id] = createObjectType(16384 | propagatedFlags);
                type.types = typeSet;
            }
            return type;
        }
        function getTypeFromUnionTypeNode(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                links.resolvedType = getUnionType(ts.map(node.types, getTypeFromTypeNode), true);
            }
            return links.resolvedType;
        }
        function getIntersectionType(types) {
            if (types.length === 0) {
                return emptyObjectType;
            }
            var typeSet = [];
            addTypesToSet(typeSet, types, 32768);
            if (typeSet.containsAny) {
                return anyType;
            }
            if (strictNullChecks) {
                if (typeSet.containsNull)
                    typeSet.push(nullType);
                if (typeSet.containsUndefined)
                    typeSet.push(undefinedType);
            }
            if (typeSet.length === 1) {
                return typeSet[0];
            }
            var id = getTypeListId(typeSet);
            var type = intersectionTypes[id];
            if (!type) {
                var propagatedFlags = getPropagatingFlagsOfTypes(typeSet, 96);
                type = intersectionTypes[id] = createObjectType(32768 | propagatedFlags);
                type.types = typeSet;
            }
            return type;
        }
        function getTypeFromIntersectionTypeNode(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                links.resolvedType = getIntersectionType(ts.map(node.types, getTypeFromTypeNode));
            }
            return links.resolvedType;
        }
        function getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                links.resolvedType = createObjectType(65536, node.symbol);
            }
            return links.resolvedType;
        }
        function getStringLiteralTypeForText(text) {
            if (ts.hasProperty(stringLiteralTypes, text)) {
                return stringLiteralTypes[text];
            }
            var type = stringLiteralTypes[text] = createType(256);
            type.text = text;
            return type;
        }
        function getTypeFromStringLiteralTypeNode(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                links.resolvedType = getStringLiteralTypeForText(node.text);
            }
            return links.resolvedType;
        }
        function getTypeFromJSDocVariadicType(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                var type = getTypeFromTypeNode(node.type);
                links.resolvedType = type ? createArrayType(type) : unknownType;
            }
            return links.resolvedType;
        }
        function getTypeFromJSDocTupleType(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                var types = ts.map(node.types, getTypeFromTypeNode);
                links.resolvedType = createTupleType(types);
            }
            return links.resolvedType;
        }
        function getThisType(node) {
            var container = ts.getThisContainer(node, false);
            var parent = container && container.parent;
            if (parent && (ts.isClassLike(parent) || parent.kind === 221)) {
                if (!(container.flags & 32) &&
                    (container.kind !== 147 || ts.isNodeDescendentOf(node, container.body))) {
                    return getDeclaredTypeOfClassOrInterface(getSymbolOfNode(parent)).thisType;
                }
            }
            error(node, ts.Diagnostics.A_this_type_is_available_only_in_a_non_static_member_of_a_class_or_interface);
            return unknownType;
        }
        function getTypeFromThisTypeNode(node) {
            var links = getNodeLinks(node);
            if (!links.resolvedType) {
                links.resolvedType = getThisType(node);
            }
            return links.resolvedType;
        }
        function getTypeFromTypeNode(node) {
            switch (node.kind) {
                case 117:
                case 257:
                case 258:
                    return anyType;
                case 131:
                    return stringType;
                case 129:
                    return numberType;
                case 120:
                    return booleanType;
                case 132:
                    return esSymbolType;
                case 103:
                    return voidType;
                case 134:
                    return undefinedType;
                case 93:
                    return nullType;
                case 164:
                    return getTypeFromThisTypeNode(node);
                case 165:
                    return getTypeFromStringLiteralTypeNode(node);
                case 154:
                case 266:
                    return getTypeFromTypeReference(node);
                case 153:
                    return booleanType;
                case 193:
                    return getTypeFromTypeReference(node);
                case 157:
                    return getTypeFromTypeQueryNode(node);
                case 159:
                case 259:
                    return getTypeFromArrayTypeNode(node);
                case 160:
                    return getTypeFromTupleTypeNode(node);
                case 161:
                case 260:
                    return getTypeFromUnionTypeNode(node);
                case 162:
                    return getTypeFromIntersectionTypeNode(node);
                case 163:
                case 262:
                case 263:
                case 270:
                case 271:
                case 267:
                    return getTypeFromTypeNode(node.type);
                case 155:
                case 156:
                case 158:
                case 268:
                case 264:
                    return getTypeFromTypeLiteralOrFunctionOrConstructorTypeNode(node);
                case 69:
                case 138:
                    var symbol = getSymbolAtLocation(node);
                    return symbol && getDeclaredTypeOfSymbol(symbol);
                case 261:
                    return getTypeFromJSDocTupleType(node);
                case 269:
                    return getTypeFromJSDocVariadicType(node);
                default:
                    return unknownType;
            }
        }
        function instantiateList(items, mapper, instantiator) {
            if (items && items.length) {
                var result = [];
                for (var _i = 0, items_1 = items; _i < items_1.length; _i++) {
                    var v = items_1[_i];
                    result.push(instantiator(v, mapper));
                }
                return result;
            }
            return items;
        }
        function createUnaryTypeMapper(source, target) {
            return function (t) { return t === source ? target : t; };
        }
        function createBinaryTypeMapper(source1, target1, source2, target2) {
            return function (t) { return t === source1 ? target1 : t === source2 ? target2 : t; };
        }
        function createArrayTypeMapper(sources, targets) {
            return function (t) {
                for (var i = 0; i < sources.length; i++) {
                    if (t === sources[i]) {
                        return targets ? targets[i] : anyType;
                    }
                }
                return t;
            };
        }
        function createTypeMapper(sources, targets) {
            var count = sources.length;
            var mapper = count == 1 ? createUnaryTypeMapper(sources[0], targets ? targets[0] : anyType) :
                count == 2 ? createBinaryTypeMapper(sources[0], targets ? targets[0] : anyType, sources[1], targets ? targets[1] : anyType) :
                    createArrayTypeMapper(sources, targets);
            mapper.mappedTypes = sources;
            return mapper;
        }
        function createTypeEraser(sources) {
            return createTypeMapper(sources, undefined);
        }
        function getInferenceMapper(context) {
            if (!context.mapper) {
                var mapper = function (t) {
                    var typeParameters = context.typeParameters;
                    for (var i = 0; i < typeParameters.length; i++) {
                        if (t === typeParameters[i]) {
                            context.inferences[i].isFixed = true;
                            return getInferredType(context, i);
                        }
                    }
                    return t;
                };
                mapper.mappedTypes = context.typeParameters;
                mapper.context = context;
                context.mapper = mapper;
            }
            return context.mapper;
        }
        function identityMapper(type) {
            return type;
        }
        function combineTypeMappers(mapper1, mapper2) {
            var mapper = function (t) { return instantiateType(mapper1(t), mapper2); };
            mapper.mappedTypes = mapper1.mappedTypes;
            return mapper;
        }
        function cloneTypeParameter(typeParameter) {
            var result = createType(512);
            result.symbol = typeParameter.symbol;
            result.target = typeParameter;
            return result;
        }
        function cloneTypePredicate(predicate, mapper) {
            if (ts.isIdentifierTypePredicate(predicate)) {
                return {
                    kind: 1,
                    parameterName: predicate.parameterName,
                    parameterIndex: predicate.parameterIndex,
                    type: instantiateType(predicate.type, mapper)
                };
            }
            else {
                return {
                    kind: 0,
                    type: instantiateType(predicate.type, mapper)
                };
            }
        }
        function instantiateSignature(signature, mapper, eraseTypeParameters) {
            var freshTypeParameters;
            var freshTypePredicate;
            if (signature.typeParameters && !eraseTypeParameters) {
                freshTypeParameters = ts.map(signature.typeParameters, cloneTypeParameter);
                mapper = combineTypeMappers(createTypeMapper(signature.typeParameters, freshTypeParameters), mapper);
                for (var _i = 0, freshTypeParameters_1 = freshTypeParameters; _i < freshTypeParameters_1.length; _i++) {
                    var tp = freshTypeParameters_1[_i];
                    tp.mapper = mapper;
                }
            }
            if (signature.typePredicate) {
                freshTypePredicate = cloneTypePredicate(signature.typePredicate, mapper);
            }
            var result = createSignature(signature.declaration, freshTypeParameters, signature.thisType && instantiateType(signature.thisType, mapper), instantiateList(signature.parameters, mapper, instantiateSymbol), instantiateType(signature.resolvedReturnType, mapper), freshTypePredicate, signature.minArgumentCount, signature.hasRestParameter, signature.hasStringLiterals);
            result.target = signature;
            result.mapper = mapper;
            return result;
        }
        function instantiateSymbol(symbol, mapper) {
            if (symbol.flags & 16777216) {
                var links = getSymbolLinks(symbol);
                symbol = links.target;
                mapper = combineTypeMappers(links.mapper, mapper);
            }
            var result = createSymbol(16777216 | 67108864 | symbol.flags, symbol.name);
            result.declarations = symbol.declarations;
            result.parent = symbol.parent;
            result.target = symbol;
            result.mapper = mapper;
            if (symbol.valueDeclaration) {
                result.valueDeclaration = symbol.valueDeclaration;
            }
            return result;
        }
        function instantiateAnonymousType(type, mapper) {
            if (mapper.instantiations) {
                var cachedType = mapper.instantiations[type.id];
                if (cachedType) {
                    return cachedType;
                }
            }
            else {
                mapper.instantiations = [];
            }
            var result = createObjectType(65536 | 131072, type.symbol);
            result.target = type;
            result.mapper = mapper;
            mapper.instantiations[type.id] = result;
            return result;
        }
        function isSymbolInScopeOfMappedTypeParameter(symbol, mapper) {
            var mappedTypes = mapper.mappedTypes;
            var node = symbol.declarations[0].parent;
            while (node) {
                switch (node.kind) {
                    case 155:
                    case 156:
                    case 219:
                    case 146:
                    case 145:
                    case 147:
                    case 150:
                    case 151:
                    case 152:
                    case 148:
                    case 149:
                    case 178:
                    case 179:
                    case 220:
                    case 191:
                    case 221:
                    case 222:
                        var declaration = node;
                        if (declaration.typeParameters) {
                            for (var _i = 0, _a = declaration.typeParameters; _i < _a.length; _i++) {
                                var d = _a[_i];
                                if (ts.contains(mappedTypes, getDeclaredTypeOfTypeParameter(d.symbol))) {
                                    return true;
                                }
                            }
                        }
                        if (ts.isClassLike(node) || node.kind === 221) {
                            var thisType = getDeclaredTypeOfClassOrInterface(getSymbolOfNode(node)).thisType;
                            if (thisType && ts.contains(mappedTypes, thisType)) {
                                return true;
                            }
                        }
                        break;
                    case 224:
                    case 255:
                        return false;
                }
                node = node.parent;
            }
            return false;
        }
        function instantiateType(type, mapper) {
            if (type && mapper !== identityMapper) {
                if (type.flags & 512) {
                    return mapper(type);
                }
                if (type.flags & 65536) {
                    return type.symbol &&
                        type.symbol.flags & (16 | 8192 | 32 | 2048 | 4096) &&
                        (type.flags & 131072 || isSymbolInScopeOfMappedTypeParameter(type.symbol, mapper)) ?
                        instantiateAnonymousType(type, mapper) : type;
                }
                if (type.flags & 4096) {
                    return createTypeReference(type.target, instantiateList(type.typeArguments, mapper, instantiateType));
                }
                if (type.flags & 8192) {
                    return createTupleType(instantiateList(type.elementTypes, mapper, instantiateType));
                }
                if (type.flags & 16384) {
                    return getUnionType(instantiateList(type.types, mapper, instantiateType), true);
                }
                if (type.flags & 32768) {
                    return getIntersectionType(instantiateList(type.types, mapper, instantiateType));
                }
            }
            return type;
        }
        function instantiateIndexInfo(info, mapper) {
            return info && createIndexInfo(instantiateType(info.type, mapper), info.isReadonly, info.declaration);
        }
        function isContextSensitive(node) {
            ts.Debug.assert(node.kind !== 146 || ts.isObjectLiteralMethod(node));
            switch (node.kind) {
                case 178:
                case 179:
                    return isContextSensitiveFunctionLikeDeclaration(node);
                case 170:
                    return ts.forEach(node.properties, isContextSensitive);
                case 169:
                    return ts.forEach(node.elements, isContextSensitive);
                case 187:
                    return isContextSensitive(node.whenTrue) ||
                        isContextSensitive(node.whenFalse);
                case 186:
                    return node.operatorToken.kind === 52 &&
                        (isContextSensitive(node.left) || isContextSensitive(node.right));
                case 252:
                    return isContextSensitive(node.initializer);
                case 146:
                case 145:
                    return isContextSensitiveFunctionLikeDeclaration(node);
                case 177:
                    return isContextSensitive(node.expression);
            }
            return false;
        }
        function isContextSensitiveFunctionLikeDeclaration(node) {
            var areAllParametersUntyped = !ts.forEach(node.parameters, function (p) { return p.type; });
            var isNullaryArrow = node.kind === 179 && !node.parameters.length;
            return !node.typeParameters && areAllParametersUntyped && !isNullaryArrow;
        }
        function isContextSensitiveFunctionOrObjectLiteralMethod(func) {
            return (isFunctionExpressionOrArrowFunction(func) || ts.isObjectLiteralMethod(func)) && isContextSensitiveFunctionLikeDeclaration(func);
        }
        function getTypeWithoutSignatures(type) {
            if (type.flags & 80896) {
                var resolved = resolveStructuredTypeMembers(type);
                if (resolved.constructSignatures.length) {
                    var result = createObjectType(65536, type.symbol);
                    result.members = resolved.members;
                    result.properties = resolved.properties;
                    result.callSignatures = emptyArray;
                    result.constructSignatures = emptyArray;
                    type = result;
                }
            }
            return type;
        }
        function isTypeIdenticalTo(source, target) {
            return checkTypeRelatedTo(source, target, identityRelation, undefined);
        }
        function compareTypesIdentical(source, target) {
            return checkTypeRelatedTo(source, target, identityRelation, undefined) ? -1 : 0;
        }
        function compareTypesAssignable(source, target) {
            return checkTypeRelatedTo(source, target, assignableRelation, undefined) ? -1 : 0;
        }
        function isTypeSubtypeOf(source, target) {
            return checkTypeSubtypeOf(source, target, undefined);
        }
        function isTypeAssignableTo(source, target) {
            return checkTypeAssignableTo(source, target, undefined);
        }
        function isTypeComparableTo(source, target) {
            return checkTypeComparableTo(source, target, undefined);
        }
        function checkTypeSubtypeOf(source, target, errorNode, headMessage, containingMessageChain) {
            return checkTypeRelatedTo(source, target, subtypeRelation, errorNode, headMessage, containingMessageChain);
        }
        function checkTypeAssignableTo(source, target, errorNode, headMessage, containingMessageChain) {
            return checkTypeRelatedTo(source, target, assignableRelation, errorNode, headMessage, containingMessageChain);
        }
        function checkTypeComparableTo(source, target, errorNode, headMessage, containingMessageChain) {
            return checkTypeRelatedTo(source, target, comparableRelation, errorNode, headMessage, containingMessageChain);
        }
        function isSignatureAssignableTo(source, target, ignoreReturnTypes) {
            return compareSignaturesRelated(source, target, ignoreReturnTypes, false, undefined, compareTypesAssignable) !== 0;
        }
        function compareSignaturesRelated(source, target, ignoreReturnTypes, reportErrors, errorReporter, compareTypes) {
            if (source === target) {
                return -1;
            }
            if (!target.hasRestParameter && source.minArgumentCount > target.parameters.length) {
                return 0;
            }
            source = getErasedSignature(source);
            target = getErasedSignature(target);
            var result = -1;
            if (source.thisType && target.thisType && source.thisType !== voidType) {
                var related = compareTypes(source.thisType, target.thisType, false)
                    || compareTypes(target.thisType, source.thisType, reportErrors);
                if (!related) {
                    if (reportErrors) {
                        errorReporter(ts.Diagnostics.The_this_types_of_each_signature_are_incompatible);
                    }
                    return 0;
                }
                result &= related;
            }
            var sourceMax = getNumNonRestParameters(source);
            var targetMax = getNumNonRestParameters(target);
            var checkCount = getNumParametersToCheckForSignatureRelatability(source, sourceMax, target, targetMax);
            var sourceParams = source.parameters;
            var targetParams = target.parameters;
            for (var i = 0; i < checkCount; i++) {
                var s = i < sourceMax ? getTypeOfParameter(sourceParams[i]) : getRestTypeOfSignature(source);
                var t = i < targetMax ? getTypeOfParameter(targetParams[i]) : getRestTypeOfSignature(target);
                var related = compareTypes(s, t, false) || compareTypes(t, s, reportErrors);
                if (!related) {
                    if (reportErrors) {
                        errorReporter(ts.Diagnostics.Types_of_parameters_0_and_1_are_incompatible, sourceParams[i < sourceMax ? i : sourceMax].name, targetParams[i < targetMax ? i : targetMax].name);
                    }
                    return 0;
                }
                result &= related;
            }
            if (!ignoreReturnTypes) {
                var targetReturnType = getReturnTypeOfSignature(target);
                if (targetReturnType === voidType) {
                    return result;
                }
                var sourceReturnType = getReturnTypeOfSignature(source);
                if (target.typePredicate) {
                    if (source.typePredicate) {
                        result &= compareTypePredicateRelatedTo(source.typePredicate, target.typePredicate, reportErrors, errorReporter, compareTypes);
                    }
                    else if (ts.isIdentifierTypePredicate(target.typePredicate)) {
                        if (reportErrors) {
                            errorReporter(ts.Diagnostics.Signature_0_must_have_a_type_predicate, signatureToString(source));
                        }
                        return 0;
                    }
                }
                else {
                    result &= compareTypes(sourceReturnType, targetReturnType, reportErrors);
                }
            }
            return result;
        }
        function compareTypePredicateRelatedTo(source, target, reportErrors, errorReporter, compareTypes) {
            if (source.kind !== target.kind) {
                if (reportErrors) {
                    errorReporter(ts.Diagnostics.A_this_based_type_guard_is_not_compatible_with_a_parameter_based_type_guard);
                    errorReporter(ts.Diagnostics.Type_predicate_0_is_not_assignable_to_1, typePredicateToString(source), typePredicateToString(target));
                }
                return 0;
            }
            if (source.kind === 1) {
                var sourceIdentifierPredicate = source;
                var targetIdentifierPredicate = target;
                if (sourceIdentifierPredicate.parameterIndex !== targetIdentifierPredicate.parameterIndex) {
                    if (reportErrors) {
                        errorReporter(ts.Diagnostics.Parameter_0_is_not_in_the_same_position_as_parameter_1, sourceIdentifierPredicate.parameterName, targetIdentifierPredicate.parameterName);
                        errorReporter(ts.Diagnostics.Type_predicate_0_is_not_assignable_to_1, typePredicateToString(source), typePredicateToString(target));
                    }
                    return 0;
                }
            }
            var related = compareTypes(source.type, target.type, reportErrors);
            if (related === 0 && reportErrors) {
                errorReporter(ts.Diagnostics.Type_predicate_0_is_not_assignable_to_1, typePredicateToString(source), typePredicateToString(target));
            }
            return related;
        }
        function isImplementationCompatibleWithOverload(implementation, overload) {
            var erasedSource = getErasedSignature(implementation);
            var erasedTarget = getErasedSignature(overload);
            var sourceReturnType = getReturnTypeOfSignature(erasedSource);
            var targetReturnType = getReturnTypeOfSignature(erasedTarget);
            if (targetReturnType === voidType
                || checkTypeRelatedTo(targetReturnType, sourceReturnType, assignableRelation, undefined)
                || checkTypeRelatedTo(sourceReturnType, targetReturnType, assignableRelation, undefined)) {
                return isSignatureAssignableTo(erasedSource, erasedTarget, true);
            }
            return false;
        }
        function getNumNonRestParameters(signature) {
            var numParams = signature.parameters.length;
            return signature.hasRestParameter ?
                numParams - 1 :
                numParams;
        }
        function getNumParametersToCheckForSignatureRelatability(source, sourceNonRestParamCount, target, targetNonRestParamCount) {
            if (source.hasRestParameter === target.hasRestParameter) {
                if (source.hasRestParameter) {
                    return Math.max(sourceNonRestParamCount, targetNonRestParamCount) + 1;
                }
                else {
                    return Math.min(sourceNonRestParamCount, targetNonRestParamCount);
                }
            }
            else {
                return source.hasRestParameter ?
                    targetNonRestParamCount :
                    sourceNonRestParamCount;
            }
        }
        function checkTypeRelatedTo(source, target, relation, errorNode, headMessage, containingMessageChain) {
            var errorInfo;
            var sourceStack;
            var targetStack;
            var maybeStack;
            var expandingFlags;
            var depth = 0;
            var overflow = false;
            ts.Debug.assert(relation !== identityRelation || !errorNode, "no error reporting in identity checking");
            var result = isRelatedTo(source, target, !!errorNode, headMessage);
            if (overflow) {
                error(errorNode, ts.Diagnostics.Excessive_stack_depth_comparing_types_0_and_1, typeToString(source), typeToString(target));
            }
            else if (errorInfo) {
                if (containingMessageChain) {
                    errorInfo = ts.concatenateDiagnosticMessageChains(containingMessageChain, errorInfo);
                }
                diagnostics.add(ts.createDiagnosticForNodeFromMessageChain(errorNode, errorInfo));
            }
            return result !== 0;
            function reportError(message, arg0, arg1, arg2) {
                ts.Debug.assert(!!errorNode);
                errorInfo = ts.chainDiagnosticMessages(errorInfo, message, arg0, arg1, arg2);
            }
            function reportRelationError(message, source, target) {
                var sourceType = typeToString(source);
                var targetType = typeToString(target);
                if (sourceType === targetType) {
                    sourceType = typeToString(source, undefined, 128);
                    targetType = typeToString(target, undefined, 128);
                }
                if (!message) {
                    message = relation === comparableRelation ?
                        ts.Diagnostics.Type_0_is_not_comparable_to_type_1 :
                        ts.Diagnostics.Type_0_is_not_assignable_to_type_1;
                }
                reportError(message, sourceType, targetType);
            }
            function isRelatedTo(source, target, reportErrors, headMessage) {
                var result;
                if (source === target)
                    return -1;
                if (relation === identityRelation) {
                    return isIdenticalTo(source, target);
                }
                if (target.flags & 1)
                    return -1;
                if (source.flags & 32) {
                    if (!strictNullChecks || target.flags & (32 | 16) || source === emptyArrayElementType)
                        return -1;
                }
                if (source.flags & 64) {
                    if (!strictNullChecks || target.flags & 64)
                        return -1;
                }
                if (source.flags & 128 && target === numberType)
                    return -1;
                if (source.flags & 128 && target.flags & 128) {
                    if (result = enumRelatedTo(source, target, reportErrors)) {
                        return result;
                    }
                }
                if (source.flags & 256 && target === stringType)
                    return -1;
                if (relation === assignableRelation || relation === comparableRelation) {
                    if (isTypeAny(source))
                        return -1;
                    if (source === numberType && target.flags & 128)
                        return -1;
                }
                if (source.flags & 8 && target.flags & 8) {
                    return -1;
                }
                if (source.flags & 1048576) {
                    if (hasExcessProperties(source, target, reportErrors)) {
                        if (reportErrors) {
                            reportRelationError(headMessage, source, target);
                        }
                        return 0;
                    }
                    if (target.flags & 49152) {
                        source = getRegularTypeOfObjectLiteral(source);
                    }
                }
                var saveErrorInfo = errorInfo;
                if (source.flags & 16384) {
                    if (relation === comparableRelation) {
                        result = someTypeRelatedToType(source, target, reportErrors);
                    }
                    else {
                        result = eachTypeRelatedToType(source, target, reportErrors);
                    }
                    if (result) {
                        return result;
                    }
                }
                else if (target.flags & 32768) {
                    result = typeRelatedToEachType(source, target, reportErrors);
                    if (result) {
                        return result;
                    }
                }
                else {
                    if (source.flags & 32768) {
                        if (result = someTypeRelatedToType(source, target, false)) {
                            return result;
                        }
                    }
                    if (target.flags & 16384) {
                        if (result = typeRelatedToSomeType(source, target, reportErrors && !(source.flags & 16777726))) {
                            return result;
                        }
                    }
                }
                if (source.flags & 512) {
                    var constraint = getConstraintOfTypeParameter(source);
                    if (!constraint || constraint.flags & 1) {
                        constraint = emptyObjectType;
                    }
                    var reportConstraintErrors = reportErrors && constraint !== emptyObjectType;
                    if (result = isRelatedTo(constraint, target, reportConstraintErrors)) {
                        errorInfo = saveErrorInfo;
                        return result;
                    }
                }
                else {
                    if (source.flags & 4096 && target.flags & 4096 && source.target === target.target) {
                        if (result = typeArgumentsRelatedTo(source, target, reportErrors)) {
                            return result;
                        }
                    }
                    var apparentSource = getApparentType(source);
                    if (apparentSource.flags & (80896 | 32768) && target.flags & 80896) {
                        var reportStructuralErrors = reportErrors && errorInfo === saveErrorInfo && !(source.flags & 16777726);
                        if (result = objectTypeRelatedTo(apparentSource, source, target, reportStructuralErrors)) {
                            errorInfo = saveErrorInfo;
                            return result;
                        }
                    }
                }
                if (reportErrors) {
                    reportRelationError(headMessage, source, target);
                }
                return 0;
            }
            function isIdenticalTo(source, target) {
                var result;
                if (source.flags & 80896 && target.flags & 80896) {
                    if (source.flags & 4096 && target.flags & 4096 && source.target === target.target) {
                        if (result = typeArgumentsRelatedTo(source, target, false)) {
                            return result;
                        }
                    }
                    return objectTypeRelatedTo(source, source, target, false);
                }
                if (source.flags & 16384 && target.flags & 16384 ||
                    source.flags & 32768 && target.flags & 32768) {
                    if (result = eachTypeRelatedToSomeType(source, target, false)) {
                        if (result &= eachTypeRelatedToSomeType(target, source, false)) {
                            return result;
                        }
                    }
                }
                return 0;
            }
            function isKnownProperty(type, name) {
                if (type.flags & 80896) {
                    var resolved = resolveStructuredTypeMembers(type);
                    if ((relation === assignableRelation || relation === comparableRelation) &&
                        (type === globalObjectType || resolved.properties.length === 0) ||
                        resolved.stringIndexInfo || resolved.numberIndexInfo || getPropertyOfType(type, name)) {
                        return true;
                    }
                }
                else if (type.flags & 49152) {
                    for (var _i = 0, _a = type.types; _i < _a.length; _i++) {
                        var t = _a[_i];
                        if (isKnownProperty(t, name)) {
                            return true;
                        }
                    }
                }
                return false;
            }
            function hasExcessProperties(source, target, reportErrors) {
                if (!(target.flags & 67108864) && maybeTypeOfKind(target, 80896)) {
                    for (var _i = 0, _a = getPropertiesOfObjectType(source); _i < _a.length; _i++) {
                        var prop = _a[_i];
                        if (!isKnownProperty(target, prop.name)) {
                            if (reportErrors) {
                                ts.Debug.assert(!!errorNode);
                                errorNode = prop.valueDeclaration;
                                reportError(ts.Diagnostics.Object_literal_may_only_specify_known_properties_and_0_does_not_exist_in_type_1, symbolToString(prop), typeToString(target));
                            }
                            return true;
                        }
                    }
                }
                return false;
            }
            function eachTypeRelatedToSomeType(source, target, reportErrors) {
                var result = -1;
                var sourceTypes = source.types;
                for (var _i = 0, sourceTypes_1 = sourceTypes; _i < sourceTypes_1.length; _i++) {
                    var sourceType = sourceTypes_1[_i];
                    var related = typeRelatedToSomeType(sourceType, target, false);
                    if (!related) {
                        return 0;
                    }
                    result &= related;
                }
                return result;
            }
            function typeRelatedToSomeType(source, target, reportErrors) {
                var targetTypes = target.types;
                var len = targetTypes.length;
                while (len >= 2 && targetTypes[len - 1].flags & 96) {
                    var related = isRelatedTo(source, targetTypes[len - 1], false);
                    if (related) {
                        return related;
                    }
                    len--;
                }
                for (var i = 0; i < len; i++) {
                    var related = isRelatedTo(source, targetTypes[i], reportErrors && i === len - 1);
                    if (related) {
                        return related;
                    }
                }
                return 0;
            }
            function typeRelatedToEachType(source, target, reportErrors) {
                var result = -1;
                var targetTypes = target.types;
                for (var _i = 0, targetTypes_1 = targetTypes; _i < targetTypes_1.length; _i++) {
                    var targetType = targetTypes_1[_i];
                    var related = isRelatedTo(source, targetType, reportErrors);
                    if (!related) {
                        return 0;
                    }
                    result &= related;
                }
                return result;
            }
            function someTypeRelatedToType(source, target, reportErrors) {
                var sourceTypes = source.types;
                var len = sourceTypes.length;
                while (len >= 2 && sourceTypes[len - 1].flags & 96) {
                    var related = isRelatedTo(sourceTypes[len - 1], target, false);
                    if (related) {
                        return related;
                    }
                    len--;
                }
                for (var i = 0; i < len; i++) {
                    var related = isRelatedTo(sourceTypes[i], target, reportErrors && i === len - 1);
                    if (related) {
                        return related;
                    }
                }
                return 0;
            }
            function eachTypeRelatedToType(source, target, reportErrors) {
                var result = -1;
                var sourceTypes = source.types;
                for (var _i = 0, sourceTypes_2 = sourceTypes; _i < sourceTypes_2.length; _i++) {
                    var sourceType = sourceTypes_2[_i];
                    var related = isRelatedTo(sourceType, target, reportErrors);
                    if (!related) {
                        return 0;
                    }
                    result &= related;
                }
                return result;
            }
            function typeArgumentsRelatedTo(source, target, reportErrors) {
                var sources = source.typeArguments || emptyArray;
                var targets = target.typeArguments || emptyArray;
                if (sources.length !== targets.length && relation === identityRelation) {
                    return 0;
                }
                var length = sources.length <= targets.length ? sources.length : targets.length;
                var result = -1;
                for (var i = 0; i < length; i++) {
                    var related = isRelatedTo(sources[i], targets[i], reportErrors);
                    if (!related) {
                        return 0;
                    }
                    result &= related;
                }
                return result;
            }
            function objectTypeRelatedTo(source, originalSource, target, reportErrors) {
                if (overflow) {
                    return 0;
                }
                var id = relation !== identityRelation || source.id < target.id ? source.id + "," + target.id : target.id + "," + source.id;
                var related = relation[id];
                if (related !== undefined) {
                    if (reportErrors && related === 2) {
                        relation[id] = 3;
                    }
                    else {
                        return related === 1 ? -1 : 0;
                    }
                }
                if (depth > 0) {
                    for (var i = 0; i < depth; i++) {
                        if (maybeStack[i][id]) {
                            return 1;
                        }
                    }
                    if (depth === 100) {
                        overflow = true;
                        return 0;
                    }
                }
                else {
                    sourceStack = [];
                    targetStack = [];
                    maybeStack = [];
                    expandingFlags = 0;
                }
                sourceStack[depth] = source;
                targetStack[depth] = target;
                maybeStack[depth] = {};
                maybeStack[depth][id] = 1;
                depth++;
                var saveExpandingFlags = expandingFlags;
                if (!(expandingFlags & 1) && isDeeplyNestedGeneric(source, sourceStack, depth))
                    expandingFlags |= 1;
                if (!(expandingFlags & 2) && isDeeplyNestedGeneric(target, targetStack, depth))
                    expandingFlags |= 2;
                var result;
                if (expandingFlags === 3) {
                    result = 1;
                }
                else {
                    result = propertiesRelatedTo(source, target, reportErrors);
                    if (result) {
                        result &= signaturesRelatedTo(source, target, 0, reportErrors);
                        if (result) {
                            result &= signaturesRelatedTo(source, target, 1, reportErrors);
                            if (result) {
                                result &= indexTypesRelatedTo(source, originalSource, target, 0, reportErrors);
                                if (result) {
                                    result &= indexTypesRelatedTo(source, originalSource, target, 1, reportErrors);
                                }
                            }
                        }
                    }
                }
                expandingFlags = saveExpandingFlags;
                depth--;
                if (result) {
                    var maybeCache = maybeStack[depth];
                    var destinationCache = (result === -1 || depth === 0) ? relation : maybeStack[depth - 1];
                    ts.copyMap(maybeCache, destinationCache);
                }
                else {
                    relation[id] = reportErrors ? 3 : 2;
                }
                return result;
            }
            function propertiesRelatedTo(source, target, reportErrors) {
                if (relation === identityRelation) {
                    return propertiesIdenticalTo(source, target);
                }
                var result = -1;
                var properties = getPropertiesOfObjectType(target);
                var requireOptionalProperties = relation === subtypeRelation && !(source.flags & 524288);
                for (var _i = 0, properties_1 = properties; _i < properties_1.length; _i++) {
                    var targetProp = properties_1[_i];
                    var sourceProp = getPropertyOfType(source, targetProp.name);
                    if (sourceProp !== targetProp) {
                        if (!sourceProp) {
                            if (!(targetProp.flags & 536870912) || requireOptionalProperties) {
                                if (reportErrors) {
                                    reportError(ts.Diagnostics.Property_0_is_missing_in_type_1, symbolToString(targetProp), typeToString(source));
                                }
                                return 0;
                            }
                        }
                        else if (!(targetProp.flags & 134217728)) {
                            var sourcePropFlags = getDeclarationFlagsFromSymbol(sourceProp);
                            var targetPropFlags = getDeclarationFlagsFromSymbol(targetProp);
                            if (sourcePropFlags & 8 || targetPropFlags & 8) {
                                if (sourceProp.valueDeclaration !== targetProp.valueDeclaration) {
                                    if (reportErrors) {
                                        if (sourcePropFlags & 8 && targetPropFlags & 8) {
                                            reportError(ts.Diagnostics.Types_have_separate_declarations_of_a_private_property_0, symbolToString(targetProp));
                                        }
                                        else {
                                            reportError(ts.Diagnostics.Property_0_is_private_in_type_1_but_not_in_type_2, symbolToString(targetProp), typeToString(sourcePropFlags & 8