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r=e.getValue(),i=t.getValue();if(r===i||e.valueIsDuplicate()||t.valueIsDuplicate())return!0;f.assert(r);var a=r.length;if(!f.check(i)||i.length!==a)return!1;for(var s=0;s<a;++s){e.stack.push(s,r[s]),t.stack.push(s,i[s]);var o=b(e,t,n);if(e.stack.length-=2,t.stack.length-=2,!o)return!1}return!0}function S(e,t,n){var r=e.getValue(),i=t.getValue();if(d.assert(r),d.assert(i),null===r.original)return!1;if(e.needsParens()&&!t.hasParens())return!1;var a=p.getUnionOfKeys(i,r);"File"!==i.type&&"File"!==r.type||delete a.tokens,delete a.loc;var o=n.length;for(var u in a)if("_"!==u.charAt(0)){e.stack.push(u,s.getFieldValue(r,u)),t.stack.push(u,s.getFieldValue(i,u));var c=b(e,t,n);if(e.stack.length-=2,t.stack.length-=2,!c)return!1}return!(l.check(e.getNode())&&n.length>o)}x.tryToReprintComments=function(e,t,n){var r=this;if(!e.comments&&!t.comments)return!0;var a=h.default.from(e),s=h.default.from(t);a.stack.push("comments",v(e)),s.stack.push("comments",v(t));var o=[],u=E(a,s,o);return u&&o.length>0&&o.forEach(function(e){var t=e.oldPath.getValue();i.default.ok(t.leading||t.trailing),r.replace(t.loc,n(e.newPath).indentTail(t.loc.indent))}),u},x.deleteComments=function(e){if(e.comments){var t=this;e.comments.forEach(function(n){n.leading?t.replace({start:n.loc.start,end:e.loc.lines.skipSpaces(n.loc.end,!1,!1)},""):n.trailing&&t.replace({start:e.loc.lines.skipSpaces(n.loc.start,!0,!1),end:n.loc.end},"")})}},n.getReprinter=function(e){i.default.ok(e instanceof h.default);var t=e.getValue();if(o.check(t)){var n=t.original,r=n&&n.loc,s=r&&r.lines,u=[];if(s&&function(e,t){var n=e.getValue();o.assert(n);var r=n.original;if(o.assert(r),i.default.deepEqual(t,[]),n.type!==r.type)return!1;var a=new h.default(r),s=S(e,a,t);return s||(t.length=0),s}(e,u))return function(t){var i=new g(s);u.forEach(function(e){var n=e.newPath.getValue(),r=e.oldPath.getValue();c.assert(r.loc,!0);var o=!i.tryToReprintComments(n,r,t);o&&i.deleteComments(r);var u=t(e.newPath,{includeComments:o,avoidRootParens:r.type===n.type&&e.oldPath.hasParens()}).indentTail(r.loc.indent),l=function(e,t,n){var r=p.copyPos(t.start),i=e.prevPos(r)&&e.charAt(r),a=n.charAt(n.firstPos());return i&&y.test(i)&&a&&y.test(a)}(s,r.loc,u),h=function(e,t,n){var r=e.charAt(t.end),i=n.lastPos(),a=n.prevPos(i)&&n.charAt(i);return a&&y.test(a)&&r&&y.test(r)}(s,r.loc,u);if(l||h){var d=[];l&&d.push(" "),d.push(u),h&&d.push(" "),u=a.concat(d)}i.replace(r.loc,u)});var o=i.get(r).indentTail(-n.loc.indent);return e.needsParens()?a.concat(["(",o,")"]):o}}}},{"./fast-path":10,"./lines":11,"./util":17,assert:1,"ast-types":44,tslib:57}],16:[function(e,t,n){"use strict";Object.defineProperty(n,"__esModule",{value:!0}),n.Printer=void 0;var r=e("tslib"),i=r.__importDefault(e("assert")),a=e("./comments"),s=e("./lines"),o=e("./options"),u=e("./patcher"),l=r.__importStar(e("ast-types")),c=l.namedTypes,p=l.builtInTypes.string,h=l.builtInTypes.object,d=r.__importDefault(e("./fast-path")),f=r.__importStar(e("./util")),m=function e(t,n){i.default.ok(this instanceof e),p.assert(t),this.code=t,n&&(h.assert(n),this.map=n)},y=!1;m.prototype.toString=function(){return y||(console.warn("Deprecation warning: recast.print now returns an object with a .code property. 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"),r.local?a.push(e.call(n,"local")):r.id&&a.push(e.call(n,"id")),s.concat(a);case"ImportDefaultSpecifier":return r.local?e.call(n,"local"):e.call(n,"id");case"TSExportAssignment":return s.concat(["export = ",e.call(n,"expression")]);case"ExportDeclaration":case"ExportDefaultDeclaration":case"ExportNamedDeclaration":return D(e,t,n);case"ExportAllDeclaration":return a.push("export *"),r.exported&&a.push(" as ",e.call(n,"exported")),a.push(" from ",e.call(n,"source"),";"),s.concat(a);case"TSNamespaceExportDeclaration":return a.push("export as namespace ",e.call(n,"id")),B(s.concat(a));case"ExportNamespaceSpecifier":return s.concat(["* as ",e.call(n,"exported")]);case"ExportDefaultSpecifier":return e.call(n,"exported");case"Import":return s.fromString("import",t);case"ImportExpression":return s.concat(["import(",e.call(n,"source"),")"]);case"ImportDeclaration":if(a.push("import "),r.importKind&&"value"!==r.importKind&&a.push(r.importKind+" "),r.specifiers&&r.specifiers.length>0){var p=[],h=[];if(e.each(function(e){var t=e.getValue();"ImportSpecifier"===t.type?h.push(n(e)):"ImportDefaultSpecifier"!==t.type&&"ImportNamespaceSpecifier"!==t.type||p.push(n(e))},"specifiers"),p.forEach(function(e,t){t>0&&a.push(", "),a.push(e)}),h.length>0){var d=s.fromString(", ").join(h);d.getLineLength(1)>t.wrapColumn&&(d=s.concat([s.fromString(",\n").join(h).indent(t.tabWidth),","])),p.length>0&&a.push(", "),d.length>1?a.push("{\n",d,"\n}"):t.objectCurlySpacing?a.push("{ ",d," }"):a.push("{",d,"}")}a.push(" from ")}return a.push(e.call(n,"source"),";"),s.concat(a);case"BlockStatement":var m=e.call(function(e){return v(e,t,n)},"body");return!m.isEmpty()||r.directives&&0!==r.directives.length?(a.push("{\n"),r.directives&&e.each(function(e){a.push(B(n(e).indent(t.tabWidth)),r.directives.length>1||!m.isEmpty()?"\n":"")},"directives"),a.push(m.indent(t.tabWidth)),a.push("\n}"),s.concat(a)):s.fromString("{}");case"ReturnStatement":if(a.push("return"),r.argument){var y=e.call(n,"argument");y.startsWithComment()||y.length>1&&c.JSXElement&&c.JSXElement.check(r.argument)?a.push(" (\n",y.indent(t.tabWidth),"\n)"):a.push(" ",y)}return a.push(";"),s.concat(a);case"CallExpression":case"OptionalCallExpression":return a.push(e.call(n,"callee")),r.typeParameters&&a.push(e.call(n,"typeParameters")),r.typeArguments&&a.push(e.call(n,"typeArguments")),l.getFieldValue(r,"optional")&&a.push("?."),a.push(E(e,t,n)),s.concat(a);case"ObjectExpression":case"ObjectPattern":case"ObjectTypeAnnotation":var g="ObjectTypeAnnotation"===r.type,x=t.flowObjectCommas?",":g?";":",",w=[],F=!1;g&&(w.push("indexers","callProperties"),null!=r.internalSlots&&w.push("internalSlots")),w.push("properties");var _=0;w.forEach(function(e){_+=r[e].length});var N=g&&1===_||0===_,I=r.exact?"{|":"{",M=r.exact?"|}":"}";a.push(N?I:I+"\n");var O=a.length-1,L=0;if(w.forEach(function(r){e.each(function(e){var r=n(e);N||(r=r.indent(t.tabWidth));var i=!g&&r.length>1;i&&F&&a.push("\n"),a.push(r),L<_-1?(a.push(x+(i?"\n\n":"\n")),F=!i):1!==_&&g?a.push(x):!N&&f.isTrailingCommaEnabled(t,"objects")&&"RestElement"!==e.getValue().type&&a.push(x),L++},r)}),r.inexact){var j=s.fromString("...",t);N?(_>0&&a.push(x," "),a.push(j)):a.push("\n",j.indent(t.tabWidth))}return a.push(N?M:"\n"+M),0!==L&&N&&t.objectCurlySpacing&&(a[O]=I+" ",a[a.length-1]=" "+M),r.typeAnnotation&&a.push(e.call(n,"typeAnnotation")),s.concat(a);case"PropertyPattern":return s.concat([e.call(n,"key"),": ",e.call(n,"pattern")]);case"ObjectProperty":case"Property":if(r.method||"get"===r.kind||"set"===r.kind)return b(e,t,n);if(r.shorthand&&"AssignmentPattern"===r.value.type)return e.call(n,"value");var J=e.call(n,"key");return r.computed?a.push("[",J,"]"):a.push(J),r.shorthand&&r.key.name===r.value.name||a.push(": ",e.call(n,"value")),s.concat(a);case"ClassMethod":case"ObjectMethod":case"ClassPrivateMethod":case"TSDeclareMethod":return b(e,t,n);case"PrivateName":return s.concat(["#",e.call(n,"id")]);case"Decorator":return s.concat(["@",e.call(n,"expression")]);case"ArrayExpression":case"ArrayPattern":var R=r.elements,X=R.length,z=e.map(n,"elements"),U=s.fromString(", ").join(z),q=U.getLineLength(1)<=t.wrapColumn;return q?t.arrayBracketSpacing?a.push("[ "):a.push("["):a.push("[\n"),e.each(function(e){var n=e.getName(),r=e.getValue();if(r){var i=z[n];q?n>0&&a.push(" "):i=i.indent(t.tabWidth),a.push(i),(n<X-1||!q&&f.isTrailingCommaEnabled(t,"arrays"))&&a.push(","),q||a.push("\n")}else a.push(",")},"elements"),q&&t.arrayBracketSpacing?a.push(" ]"):a.push("]"),r.typeAnnotation&&a.push(e.call(n,"typeAnnotation")),s.concat(a);case"SequenceExpression":return s.fromString(", ").join(e.map(n,"expressions"));case"ThisExpression":return s.fromString("this");case"Super":return s.fromString("super");case"NullLiteral":return s.fromString("null");case"RegExpLiteral":return s.fromString(r.extra.raw);case"BigIntLiteral":return s.fromString(r.value+"n");case"NumericLiteral":return r.extra&&"string"==typeof r.extra.raw&&Number(r.extra.raw)===r.value?s.fromString(r.extra.raw,t):s.fromString(r.value,t);case"BooleanLiteral":case"StringLiteral":case"Literal":return"number"==typeof r.value&&"string"==typeof r.raw&&Number(r.raw)===r.value?s.fromString(r.raw,t):"string"!=typeof r.value?s.fromString(r.value,t):s.fromString(P(r.value,t),t);case"Directive":return e.call(n,"value");case"DirectiveLiteral":return s.fromString(P(r.value,t));case"InterpreterDirective":return s.fromString("#!"+r.value+"\n",t);case"ModuleSpecifier":if(r.local)throw new Error("The ESTree ModuleSpecifier type should be abstract");return s.fromString(P(r.value,t),t);case"UnaryExpression":return a.push(r.operator),/[a-z]$/.test(r.operator)&&a.push(" "),a.push(e.call(n,"argument")),s.concat(a);case"UpdateExpression":return a.push(e.call(n,"argument"),r.operator),r.prefix&&a.reverse(),s.concat(a);case"ConditionalExpression":return s.concat([e.call(n,"test")," ? 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H=T(e.call(n,"consequent"),t);return a.push("if (",e.call(n,"test"),")",H),r.alternate&&a.push(k(H)?" else":"\nelse",T(e.call(n,"alternate"),t)),s.concat(a);case"ForStatement":var Y=e.call(n,"init"),$=Y.length>1?";\n":"; ",Q=s.fromString($).join([Y,e.call(n,"test"),e.call(n,"update")]).indentTail("for (".length),Z=s.concat(["for (",Q,")"]),ee=T(e.call(n,"body"),t);return a.push(Z),Z.length>1&&(a.push("\n"),ee=ee.trimLeft()),a.push(ee),s.concat(a);case"WhileStatement":return s.concat(["while (",e.call(n,"test"),")",T(e.call(n,"body"),t)]);case"ForInStatement":return s.concat([r.each?"for each (":"for (",e.call(n,"left")," in ",e.call(n,"right"),")",T(e.call(n,"body"),t)]);case"ForOfStatement":case"ForAwaitStatement":return a.push("for "),(r.await||"ForAwaitStatement"===r.type)&&a.push("await "),a.push("(",e.call(n,"left")," of ",e.call(n,"right"),")",T(e.call(n,"body"),t)),s.concat(a);case"DoWhileStatement":var te=s.concat(["do",T(e.call(n,"body"),t)]);return a.push(te),k(te)?a.push(" 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s.concat(["{",e.call(n,"expression"),"}"]);case"JSXElement":case"JSXFragment":var re="opening"+("JSXElement"===r.type?"Element":"Fragment"),ie="closing"+("JSXElement"===r.type?"Element":"Fragment"),ae=e.call(n,re);if(r[re].selfClosing)return i.default.ok(!r[ie],"unexpected "+ie+" element in self-closing "+r.type),ae;var se=s.concat(e.map(function(e){var t=e.getValue();if(c.Literal.check(t)&&"string"==typeof t.value){if(/\S/.test(t.value))return t.value.replace(/^\s+|\s+$/g,"");if(/\n/.test(t.value))return"\n"}return n(e)},"children")).indentTail(t.tabWidth),oe=e.call(n,ie);return s.concat([ae,se,oe]);case"JSXOpeningElement":a.push("<",e.call(n,"name"));var ue=[];e.each(function(e){ue.push(" ",n(e))},"attributes");var le=s.concat(ue),ce=le.length>1||le.getLineLength(1)>t.wrapColumn;return ce&&(ue.forEach(function(e,t){" "===e&&(i.default.strictEqual(t%2,0),ue[t]="\n")}),le=s.concat(ue).indentTail(t.tabWidth)),a.push(le,r.selfClosing?" />":">"),s.concat(a);case"JSXClosingElement":return s.concat(["</",e.call(n,"name"),">"]);case"JSXOpeningFragment":return s.fromString("<>");case"JSXClosingFragment":return s.fromString("</>");case"JSXText":return s.fromString(r.value,t);case"JSXEmptyExpression":return s.fromString("");case"TypeAnnotatedIdentifier":return s.concat([e.call(n,"annotation")," ",e.call(n,"identifier")]);case"ClassBody":return 0===r.body.length?s.fromString("{}"):s.concat(["{\n",e.call(function(e){return v(e,t,n)},"body").indent(t.tabWidth),"\n}"]);case"ClassPropertyDefinition":return a.push("static ",e.call(n,"definition")),c.MethodDefinition.check(r.definition)||a.push(";"),s.concat(a);case"ClassProperty":r.declare&&a.push("declare ");var pe=r.accessibility||r.access;"string"==typeof pe&&a.push(pe," "),r.static&&a.push("static "),r.abstract&&a.push("abstract "),r.readonly&&a.push("readonly ");var J=e.call(n,"key");return r.computed&&(J=s.concat(["[",J,"]"])),r.variance&&(J=s.concat([A(e,n),J])),a.push(J),r.optional&&a.push("?"),r.typeAnnotation&&a.push(e.call(n,"typeAnnotation")),r.value&&a.push(" = ",e.call(n,"value")),a.push(";"),s.concat(a);case"ClassPrivateProperty":return r.static&&a.push("static "),a.push(e.call(n,"key")),r.typeAnnotation&&a.push(e.call(n,"typeAnnotation")),r.value&&a.push(" = ",e.call(n,"value")),a.push(";"),s.concat(a);case"ClassDeclaration":case"ClassExpression":return r.declare&&a.push("declare "),r.abstract&&a.push("abstract "),a.push("class"),r.id&&a.push(" ",e.call(n,"id")),r.typeParameters&&a.push(e.call(n,"typeParameters")),r.superClass&&a.push(" extends ",e.call(n,"superClass"),e.call(n,"superTypeParameters")),r.implements&&r.implements.length>0&&a.push(" implements ",s.fromString(", ").join(e.map(n,"implements"))),a.push(" ",e.call(n,"body")),s.concat(a);case"TemplateElement":return s.fromString(r.value.raw,t).lockIndentTail();case"TemplateLiteral":var he=e.map(n,"expressions");return a.push("`"),e.each(function(e){var t=e.getName();a.push(n(e)),t<he.length&&a.push("${",he[t],"}")},"quasis"),a.push("`"),s.concat(a).lockIndentTail();case"TaggedTemplateExpression":return s.concat([e.call(n,"tag"),e.call(n,"quasi")]);case"Node":case"Printable":case"SourceLocation":case"Position":case"Statement":case"Function":case"Pattern":case"Expression":case"Declaration":case"Specifier":case"NamedSpecifier":case"Comment":case"Flow":case"FlowType":case"FlowPredicate":case"MemberTypeAnnotation":case"Type":case"TSHasOptionalTypeParameterInstantiation":case"TSHasOptionalTypeParameters":case"TSHasOptionalTypeAnnotation":case"ChainElement":throw new Error("unprintable type: "+JSON.stringify(r.type));case"CommentBlock":case"Block":return s.concat(["/*",s.fromString(r.value,t),"*/"]);case"CommentLine":case"Line":return s.concat(["//",s.fromString(r.value,t)]);case"TypeAnnotation":return r.typeAnnotation?("FunctionTypeAnnotation"!==r.typeAnnotation.type&&a.push(": "),a.push(e.call(n,"typeAnnotation")),s.concat(a)):s.fromString("");case"ExistentialTypeParam":case"ExistsTypeAnnotation":return s.fromString("*",t);case"EmptyTypeAnnotation":return s.fromString("empty",t);case"AnyTypeAnnotation":return s.fromString("any",t);case"MixedTypeAnnotation":return s.fromString("mixed",t);case"ArrayTypeAnnotation":return s.concat([e.call(n,"elementType"),"[]"]);case"TupleTypeAnnotation":var de=e.map(n,"types"),U=s.fromString(", ").join(de),fe=U.getLineLength(1)<=t.wrapColumn;return fe?t.arrayBracketSpacing?a.push("[ "):a.push("["):a.push("[\n"),e.each(function(e){var n=e.getName(),i=e.getValue();if(i){var s=de[n];fe?n>0&&a.push(" "):s=s.indent(t.tabWidth),a.push(s),(n<r.types.length-1||!fe&&f.isTrailingCommaEnabled(t,"arrays"))&&a.push(","),fe||a.push("\n")}else a.push(",")},"types"),fe&&t.arrayBracketSpacing?a.push(" ]"):a.push("]"),s.concat(a);case"BooleanTypeAnnotation":return s.fromString("boolean",t);case"BooleanLiteralTypeAnnotation":return i.default.strictEqual(typeof r.value,"boolean"),s.fromString(""+r.value,t);case"InterfaceTypeAnnotation":return a.push("interface"),r.extends&&r.extends.length>0&&a.push(" extends ",s.fromString(", ").join(e.map(n,"extends"))),a.push(" ",e.call(n,"body")),s.concat(a);case"DeclareClass":return C(e,["class ",e.call(n,"id")," ",e.call(n,"body")]);case"DeclareFunction":return C(e,["function ",e.call(n,"id"),";"]);case"DeclareModule":return C(e,["module ",e.call(n,"id")," ",e.call(n,"body")]);case"DeclareModuleExports":return C(e,["module.exports",e.call(n,"typeAnnotation")]);case"DeclareVariable":return C(e,["var ",e.call(n,"id"),";"]);case"DeclareExportDeclaration":case"DeclareExportAllDeclaration":return s.concat(["declare ",D(e,t,n)]);case"EnumDeclaration":return s.concat(["enum ",e.call(n,"id"),e.call(n,"body")]);case"EnumBooleanBody":case"EnumNumberBody":case"EnumStringBody":case"EnumSymbolBody":return("EnumSymbolBody"===r.type||r.explicitType)&&a.push(" of ",r.type.slice(4,-4).toLowerCase()),a.push(" {\n",s.fromString("\n").join(e.map(n,"members")).indent(t.tabWidth),"\n}"),s.concat(a);case"EnumDefaultedMember":return s.concat([e.call(n,"id"),","]);case"EnumBooleanMember":case"EnumNumberMember":case"EnumStringMember":return s.concat([e.call(n,"id")," = ",e.call(n,"init"),","]);case"InferredPredicate":return s.fromString("%checks",t);case"DeclaredPredicate":return s.concat(["%checks(",e.call(n,"value"),")"]);case"FunctionTypeAnnotation":var me=e.getParentNode(0),ye=!(c.ObjectTypeCallProperty.check(me)||c.ObjectTypeInternalSlot.check(me)&&me.method||c.DeclareFunction.check(e.getParentNode(2))),ge=ye&&!c.FunctionTypeParam.check(me)&&!c.TypeAlias.check(me);ge&&a.push(": ");var xe=!!r.typeParameters,ve=xe||1!==r.params.length||r.params[0].name;return 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function(e){this.type=r.Syntax.ThrowStatement,this.argument=e}}();t.ThrowStatement=de;var fe=function(){return function(e,t,n){this.type=r.Syntax.TryStatement,this.block=e,this.handler=t,this.finalizer=n}}();t.TryStatement=fe;var me=function(){return function(e,t){this.type=r.Syntax.UnaryExpression,this.operator=e,this.argument=t,this.prefix=!0}}();t.UnaryExpression=me;var ye=function(){return function(e,t,n){this.type=r.Syntax.UpdateExpression,this.operator=e,this.argument=t,this.prefix=n}}();t.UpdateExpression=ye;var ge=function(){return function(e,t){this.type=r.Syntax.VariableDeclaration,this.declarations=e,this.kind=t}}();t.VariableDeclaration=ge;var xe=function(){return function(e,t){this.type=r.Syntax.VariableDeclarator,this.id=e,this.init=t}}();t.VariableDeclarator=xe;var ve=function(){return function(e,t){this.type=r.Syntax.WhileStatement,this.test=e,this.body=t}}();t.WhileStatement=ve;var be=function(){return function(e,t){this.type=r.Syntax.WithStatement,this.object=e,this.body=t}}();t.WithStatement=be;var Ee=function(){return function(e,t){this.type=r.Syntax.YieldExpression,this.argument=e,this.delegate=t}}();t.YieldExpression=Ee},function(e,t,n){"use strict";Object.defineProperty(t,"__esModule",{value:!0});var r=n(9),i=n(10),a=n(11),s=n(7),o=n(12),u=n(2),l=n(13),c=function(){function e(e,t,n){void 0===t&&(t={}),this.config={range:"boolean"==typeof t.range&&t.range,loc:"boolean"==typeof t.loc&&t.loc,source:null,tokens:"boolean"==typeof t.tokens&&t.tokens,comment:"boolean"==typeof t.comment&&t.comment,tolerant:"boolean"==typeof t.tolerant&&t.tolerant},this.config.loc&&t.source&&null!==t.source&&(this.config.source=String(t.source)),this.delegate=n,this.errorHandler=new i.ErrorHandler,this.errorHandler.tolerant=this.config.tolerant,this.scanner=new 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t=[],n=1;n<arguments.length;n++)t[n-1]=arguments[n];var i=Array.prototype.slice.call(arguments,1),a=e.replace(/%(\d)/g,function(e,t){return r.assert(t<i.length,"Message reference must be in range"),i[t]}),s=this.lastMarker.index,o=this.lastMarker.line,u=this.lastMarker.column+1;throw this.errorHandler.createError(s,o,u,a)},e.prototype.tolerateError=function(e){for(var t=[],n=1;n<arguments.length;n++)t[n-1]=arguments[n];var i=Array.prototype.slice.call(arguments,1),a=e.replace(/%(\d)/g,function(e,t){return r.assert(t<i.length,"Message reference must be in range"),i[t]}),s=this.lastMarker.index,o=this.scanner.lineNumber,u=this.lastMarker.column+1;this.errorHandler.tolerateError(s,o,u,a)},e.prototype.unexpectedTokenError=function(e,t){var n,r=t||a.Messages.UnexpectedToken;if(e?(t||(r=2===e.type?a.Messages.UnexpectedEOS:3===e.type?a.Messages.UnexpectedIdentifier:6===e.type?a.Messages.UnexpectedNumber:8===e.type?a.Messages.UnexpectedString:10===e.type?a.Messages.UnexpectedTemplate:a.Messages.UnexpectedToken,4===e.type&&(this.scanner.isFutureReservedWord(e.value)?r=a.Messages.UnexpectedReserved:this.context.strict&&this.scanner.isStrictModeReservedWord(e.value)&&(r=a.Messages.StrictReservedWord))),n=e.value):n="ILLEGAL",r=r.replace("%0",n),e&&"number"==typeof e.lineNumber){var i=e.start,s=e.lineNumber,o=this.lastMarker.index-this.lastMarker.column,u=e.start-o+1;return this.errorHandler.createError(i,s,u,r)}i=this.lastMarker.index,s=this.lastMarker.line,u=this.lastMarker.column+1;return this.errorHandler.createError(i,s,u,r)},e.prototype.throwUnexpectedToken=function(e,t){throw this.unexpectedTokenError(e,t)},e.prototype.tolerateUnexpectedToken=function(e,t){this.errorHandler.tolerate(this.unexpectedTokenError(e,t))},e.prototype.collectComments=function(){if(this.config.comment){var e=this.scanner.scanComments();if(e.length>0&&this.delegate)for(var t=0;t<e.length;++t){var n=e[t],r=void 0;r={type:n.multiLine?"BlockComment":"LineComment",value:this.scanner.source.slice(n.slice[0],n.slice[1])},this.config.range&&(r.range=n.range),this.config.loc&&(r.loc=n.loc);var i={start:{line:n.loc.start.line,column:n.loc.start.column,offset:n.range[0]},end:{line:n.loc.end.line,column:n.loc.end.column,offset:n.range[1]}};this.delegate(r,i)}}else this.scanner.scanComments()},e.prototype.getTokenRaw=function(e){return this.scanner.source.slice(e.start,e.end)},e.prototype.convertToken=function(e){var t={type:l.TokenName[e.type],value:this.getTokenRaw(e)};if(this.config.range&&(t.range=[e.start,e.end]),this.config.loc&&(t.loc={start:{line:this.startMarker.line,column:this.startMarker.column},end:{line:this.scanner.lineNumber,column:this.scanner.index-this.scanner.lineStart}}),9===e.type){var n=e.pattern,r=e.flags;t.regex={pattern:n,flags:r}}return t},e.prototype.nextToken=function(){var e=this.lookahead;this.lastMarker.index=this.scanner.index,this.lastMarker.line=this.scanner.lineNumber,this.lastMarker.column=this.scanner.index-this.scanner.lineStart,this.collectComments(),this.scanner.index!==this.startMarker.index&&(this.startMarker.index=this.scanner.index,this.startMarker.line=this.scanner.lineNumber,this.startMarker.column=this.scanner.index-this.scanner.lineStart);var t=this.scanner.lex();return this.hasLineTerminator=e.lineNumber!==t.lineNumber,t&&this.context.strict&&3===t.type&&this.scanner.isStrictModeReservedWord(t.value)&&(t.type=4),this.lookahead=t,this.config.tokens&&2!==t.type&&this.tokens.push(this.convertToken(t)),e},e.prototype.nextRegexToken=function(){this.collectComments();var e=this.scanner.scanRegExp();return this.config.tokens&&(this.tokens.pop(),this.tokens.push(this.convertToken(e))),this.lookahead=e,this.nextToken(),e},e.prototype.createNode=function(){return{index:this.startMarker.index,line:this.startMarker.line,column:this.startMarker.column}},e.prototype.startNode=function(e,t){void 0===t&&(t=0);var n=e.start-e.lineStart,r=e.lineNumber;return n<0&&(n+=t,r--),{index:e.start,line:r,column:n}},e.prototype.finalize=function(e,t){if(this.config.range&&(t.range=[e.index,this.lastMarker.index]),this.config.loc&&(t.loc={start:{line:e.line,column:e.column},end:{line:this.lastMarker.line,column:this.lastMarker.column}},this.config.source&&(t.loc.source=this.config.source)),this.delegate){var n={start:{line:e.line,column:e.column,offset:e.index},end:{line:this.lastMarker.line,column:this.lastMarker.column,offset:this.lastMarker.index}};this.delegate(t,n)}return t},e.prototype.expect=function(e){var t=this.nextToken();7===t.type&&t.value===e||this.throwUnexpectedToken(t)},e.prototype.expectCommaSeparator=function(){if(this.config.tolerant){var e=this.lookahead;7===e.type&&","===e.value?this.nextToken():7===e.type&&";"===e.value?(this.nextToken(),this.tolerateUnexpectedToken(e)):this.tolerateUnexpectedToken(e,a.Messages.UnexpectedToken)}else this.expect(",")},e.prototype.expectKeyword=function(e){var t=this.nextToken();4===t.type&&t.value===e||this.throwUnexpectedToken(t)},e.prototype.match=function(e){return 7===this.lookahead.type&&this.lookahead.value===e},e.prototype.matchKeyword=function(e){return 4===this.lookahead.type&&this.lookahead.value===e},e.prototype.matchContextualKeyword=function(e){return 3===this.lookahead.type&&this.lookahead.value===e},e.prototype.matchAssign=function(){if(7!==this.lookahead.type)return!1;var e=this.lookahead.value;return"="===e||"*="===e||"**="===e||"/="===e||"%="===e||"+="===e||"-="===e||"<<="===e||">>="===e||">>>="===e||"&="===e||"^="===e||"|="===e},e.prototype.isolateCoverGrammar=function(e){var t=this.context.isBindingElement,n=this.context.isAssignmentTarget,r=this.context.firstCoverInitializedNameError;this.context.isBindingElement=!0,this.context.isAssignmentTarget=!0,this.context.firstCoverInitializedNameError=null;var i=e.call(this);return null!==this.context.firstCoverInitializedNameError&&this.throwUnexpectedToken(this.context.firstCoverInitializedNameError),this.context.isBindingElement=t,this.context.isAssignmentTarget=n,this.context.firstCoverInitializedNameError=r,i},e.prototype.inheritCoverGrammar=function(e){var t=this.context.isBindingElement,n=this.context.isAssignmentTarget,r=this.context.firstCoverInitializedNameError;this.context.isBindingElement=!0,this.context.isAssignmentTarget=!0,this.context.firstCoverInitializedNameError=null;var i=e.call(this);return this.context.isBindingElement=this.context.isBindingElement&&t,this.context.isAssignmentTarget=this.context.isAssignmentTarget&&n,this.context.firstCoverInitializedNameError=r||this.context.firstCoverInitializedNameError,i},e.prototype.consumeSemicolon=function(){this.match(";")?this.nextToken():this.hasLineTerminator||(2===this.lookahead.type||this.match("}")||this.throwUnexpectedToken(this.lookahead),this.lastMarker.index=this.startMarker.index,this.lastMarker.line=this.startMarker.line,this.lastMarker.column=this.startMarker.column)},e.prototype.parsePrimaryExpression=function(){var e,t,n,r=this.createNode();switch(this.lookahead.type){case 3:(this.context.isModule||this.context.await)&&"await"===this.lookahead.value&&this.tolerateUnexpectedToken(this.lookahead),e=this.matchAsyncFunction()?this.parseFunctionExpression():this.finalize(r,new s.Identifier(this.nextToken().value));break;case 6:case 8:this.context.strict&&this.lookahead.octal&&this.tolerateUnexpectedToken(this.lookahead,a.Messages.StrictOctalLiteral),this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1,t=this.nextToken(),n=this.getTokenRaw(t),e=this.finalize(r,new s.Literal(t.value,n));break;case 1:this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1,t=this.nextToken(),n=this.getTokenRaw(t),e=this.finalize(r,new s.Literal("true"===t.value,n));break;case 5:this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1,t=this.nextToken(),n=this.getTokenRaw(t),e=this.finalize(r,new s.Literal(null,n));break;case 10:e=this.parseTemplateLiteral();break;case 7:switch(this.lookahead.value){case"(":this.context.isBindingElement=!1,e=this.inheritCoverGrammar(this.parseGroupExpression);break;case"[":e=this.inheritCoverGrammar(this.parseArrayInitializer);break;case"{":e=this.inheritCoverGrammar(this.parseObjectInitializer);break;case"/":case"/=":this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1,this.scanner.index=this.startMarker.index,t=this.nextRegexToken(),n=this.getTokenRaw(t),e=this.finalize(r,new s.RegexLiteral(t.regex,n,t.pattern,t.flags));break;default:e=this.throwUnexpectedToken(this.nextToken())}break;case 4:!this.context.strict&&this.context.allowYield&&this.matchKeyword("yield")?e=this.parseIdentifierName():!this.context.strict&&this.matchKeyword("let")?e=this.finalize(r,new s.Identifier(this.nextToken().value)):(this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1,this.matchKeyword("function")?e=this.parseFunctionExpression():this.matchKeyword("this")?(this.nextToken(),e=this.finalize(r,new s.ThisExpression)):e=this.matchKeyword("class")?this.parseClassExpression():this.throwUnexpectedToken(this.nextToken()));break;default:e=this.throwUnexpectedToken(this.nextToken())}return e},e.prototype.parseSpreadElement=function(){var e=this.createNode();this.expect("...");var t=this.inheritCoverGrammar(this.parseAssignmentExpression);return this.finalize(e,new s.SpreadElement(t))},e.prototype.parseArrayInitializer=function(){var e=this.createNode(),t=[];for(this.expect("[");!this.match("]");)if(this.match(","))this.nextToken(),t.push(null);else if(this.match("...")){var n=this.parseSpreadElement();this.match("]")||(this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1,this.expect(",")),t.push(n)}else t.push(this.inheritCoverGrammar(this.parseAssignmentExpression)),this.match("]")||this.expect(",");return this.expect("]"),this.finalize(e,new s.ArrayExpression(t))},e.prototype.parsePropertyMethod=function(e){this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1;var t=this.context.strict,n=this.context.allowStrictDirective;this.context.allowStrictDirective=e.simple;var r=this.isolateCoverGrammar(this.parseFunctionSourceElements);return this.context.strict&&e.firstRestricted&&this.tolerateUnexpectedToken(e.firstRestricted,e.message),this.context.strict&&e.stricted&&this.tolerateUnexpectedToken(e.stricted,e.message),this.context.strict=t,this.context.allowStrictDirective=n,r},e.prototype.parsePropertyMethodFunction=function(){var e=this.createNode(),t=this.context.allowYield;this.context.allowYield=!0;var n=this.parseFormalParameters(),r=this.parsePropertyMethod(n);return this.context.allowYield=t,this.finalize(e,new s.FunctionExpression(null,n.params,r,!1))},e.prototype.parsePropertyMethodAsyncFunction=function(){var e=this.createNode(),t=this.context.allowYield,n=this.context.await;this.context.allowYield=!1,this.context.await=!0;var r=this.parseFormalParameters(),i=this.parsePropertyMethod(r);return this.context.allowYield=t,this.context.await=n,this.finalize(e,new s.AsyncFunctionExpression(null,r.params,i))},e.prototype.parseObjectPropertyKey=function(){var e,t=this.createNode(),n=this.nextToken();switch(n.type){case 8:case 6:this.context.strict&&n.octal&&this.tolerateUnexpectedToken(n,a.Messages.StrictOctalLiteral);var r=this.getTokenRaw(n);e=this.finalize(t,new s.Literal(n.value,r));break;case 3:case 1:case 5:case 4:e=this.finalize(t,new s.Identifier(n.value));break;case 7:"["===n.value?(e=this.isolateCoverGrammar(this.parseAssignmentExpression),this.expect("]")):e=this.throwUnexpectedToken(n);break;default:e=this.throwUnexpectedToken(n)}return e},e.prototype.isPropertyKey=function(e,t){return e.type===u.Syntax.Identifier&&e.name===t||e.type===u.Syntax.Literal&&e.value===t},e.prototype.parseObjectProperty=function(e){var t,n=this.createNode(),r=this.lookahead,i=null,o=null,u=!1,l=!1,c=!1,p=!1;if(3===r.type){var h=r.value;this.nextToken(),u=this.match("["),i=(p=!(this.hasLineTerminator||"async"!==h||this.match(":")||this.match("(")||this.match("*")||this.match(",")))?this.parseObjectPropertyKey():this.finalize(n,new s.Identifier(h))}else this.match("*")?this.nextToken():(u=this.match("["),i=this.parseObjectPropertyKey());var d=this.qualifiedPropertyName(this.lookahead);if(3===r.type&&!p&&"get"===r.value&&d)t="get",u=this.match("["),i=this.parseObjectPropertyKey(),this.context.allowYield=!1,o=this.parseGetterMethod();else if(3===r.type&&!p&&"set"===r.value&&d)t="set",u=this.match("["),i=this.parseObjectPropertyKey(),o=this.parseSetterMethod();else if(7===r.type&&"*"===r.value&&d)t="init",u=this.match("["),i=this.parseObjectPropertyKey(),o=this.parseGeneratorMethod(),l=!0;else if(i||this.throwUnexpectedToken(this.lookahead),t="init",this.match(":")&&!p)!u&&this.isPropertyKey(i,"__proto__")&&(e.value&&this.tolerateError(a.Messages.DuplicateProtoProperty),e.value=!0),this.nextToken(),o=this.inheritCoverGrammar(this.parseAssignmentExpression);else if(this.match("("))o=p?this.parsePropertyMethodAsyncFunction():this.parsePropertyMethodFunction(),l=!0;else if(3===r.type){h=this.finalize(n,new s.Identifier(r.value));if(this.match("=")){this.context.firstCoverInitializedNameError=this.lookahead,this.nextToken(),c=!0;var f=this.isolateCoverGrammar(this.parseAssignmentExpression);o=this.finalize(n,new s.AssignmentPattern(h,f))}else c=!0,o=h}else this.throwUnexpectedToken(this.nextToken());return this.finalize(n,new s.Property(t,i,u,o,l,c))},e.prototype.parseObjectInitializer=function(){var e=this.createNode();this.expect("{");for(var t=[],n={value:!1};!this.match("}");)t.push(this.parseObjectProperty(n)),this.match("}")||this.expectCommaSeparator();return this.expect("}"),this.finalize(e,new s.ObjectExpression(t))},e.prototype.parseTemplateHead=function(){r.assert(this.lookahead.head,"Template literal must start with a template head");var e=this.createNode(),t=this.nextToken(),n=t.value,i=t.cooked;return this.finalize(e,new s.TemplateElement({raw:n,cooked:i},t.tail))},e.prototype.parseTemplateElement=function(){10!==this.lookahead.type&&this.throwUnexpectedToken();var e=this.createNode(),t=this.nextToken(),n=t.value,r=t.cooked;return this.finalize(e,new s.TemplateElement({raw:n,cooked:r},t.tail))},e.prototype.parseTemplateLiteral=function(){var e=this.createNode(),t=[],n=[],r=this.parseTemplateHead();for(n.push(r);!r.tail;)t.push(this.parseExpression()),r=this.parseTemplateElement(),n.push(r);return this.finalize(e,new s.TemplateLiteral(n,t))},e.prototype.reinterpretExpressionAsPattern=function(e){switch(e.type){case u.Syntax.Identifier:case u.Syntax.MemberExpression:case u.Syntax.RestElement:case u.Syntax.AssignmentPattern:break;case u.Syntax.SpreadElement:e.type=u.Syntax.RestElement,this.reinterpretExpressionAsPattern(e.argument);break;case u.Syntax.ArrayExpression:e.type=u.Syntax.ArrayPattern;for(var t=0;t<e.elements.length;t++)null!==e.elements[t]&&this.reinterpretExpressionAsPattern(e.elements[t]);break;case u.Syntax.ObjectExpression:e.type=u.Syntax.ObjectPattern;for(t=0;t<e.properties.length;t++)this.reinterpretExpressionAsPattern(e.properties[t].value);break;case u.Syntax.AssignmentExpression:e.type=u.Syntax.AssignmentPattern,delete e.operator,this.reinterpretExpressionAsPattern(e.left)}},e.prototype.parseGroupExpression=function(){var e;if(this.expect("("),this.match(")"))this.nextToken(),this.match("=>")||this.expect("=>"),e={type:"ArrowParameterPlaceHolder",params:[],async:!1};else{var t=this.lookahead,n=[];if(this.match("..."))e=this.parseRestElement(n),this.expect(")"),this.match("=>")||this.expect("=>"),e={type:"ArrowParameterPlaceHolder",params:[e],async:!1};else{var r=!1;if(this.context.isBindingElement=!0,e=this.inheritCoverGrammar(this.parseAssignmentExpression),this.match(",")){var i=[];for(this.context.isAssignmentTarget=!1,i.push(e);2!==this.lookahead.type&&this.match(",");){if(this.nextToken(),this.match(")")){this.nextToken();for(var a=0;a<i.length;a++)this.reinterpretExpressionAsPattern(i[a]);r=!0,e={type:"ArrowParameterPlaceHolder",params:i,async:!1}}else if(this.match("...")){this.context.isBindingElement||this.throwUnexpectedToken(this.lookahead),i.push(this.parseRestElement(n)),this.expect(")"),this.match("=>")||this.expect("=>"),this.context.isBindingElement=!1;for(a=0;a<i.length;a++)this.reinterpretExpressionAsPattern(i[a]);r=!0,e={type:"ArrowParameterPlaceHolder",params:i,async:!1}}else i.push(this.inheritCoverGrammar(this.parseAssignmentExpression));if(r)break}r||(e=this.finalize(this.startNode(t),new s.SequenceExpression(i)))}if(!r){if(this.expect(")"),this.match("=>")&&(e.type===u.Syntax.Identifier&&"yield"===e.name&&(r=!0,e={type:"ArrowParameterPlaceHolder",params:[e],async:!1}),!r)){if(this.context.isBindingElement||this.throwUnexpectedToken(this.lookahead),e.type===u.Syntax.SequenceExpression)for(a=0;a<e.expressions.length;a++)this.reinterpretExpressionAsPattern(e.expressions[a]);else this.reinterpretExpressionAsPattern(e);e={type:"ArrowParameterPlaceHolder",params:e.type===u.Syntax.SequenceExpression?e.expressions:[e],async:!1}}this.context.isBindingElement=!1}}}return e},e.prototype.parseArguments=function(){this.expect("(");var e=[];if(!this.match(")"))for(;;){var t=this.match("...")?this.parseSpreadElement():this.isolateCoverGrammar(this.parseAssignmentExpression);if(e.push(t),this.match(")"))break;if(this.expectCommaSeparator(),this.match(")"))break}return this.expect(")"),e},e.prototype.isIdentifierName=function(e){return 3===e.type||4===e.type||1===e.type||5===e.type},e.prototype.parseIdentifierName=function(){var e=this.createNode(),t=this.nextToken();return this.isIdentifierName(t)||this.throwUnexpectedToken(t),this.finalize(e,new s.Identifier(t.value))},e.prototype.parseNewExpression=function(){var e,t=this.createNode(),n=this.parseIdentifierName();if(r.assert("new"===n.name,"New expression must start with `new`"),this.match("."))if(this.nextToken(),3===this.lookahead.type&&this.context.inFunctionBody&&"target"===this.lookahead.value){var i=this.parseIdentifierName();e=new s.MetaProperty(n,i)}else this.throwUnexpectedToken(this.lookahead);else{var a=this.isolateCoverGrammar(this.parseLeftHandSideExpression),o=this.match("(")?this.parseArguments():[];e=new s.NewExpression(a,o),this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1}return this.finalize(t,e)},e.prototype.parseAsyncArgument=function(){var e=this.parseAssignmentExpression();return this.context.firstCoverInitializedNameError=null,e},e.prototype.parseAsyncArguments=function(){this.expect("(");var e=[];if(!this.match(")"))for(;;){var t=this.match("...")?this.parseSpreadElement():this.isolateCoverGrammar(this.parseAsyncArgument);if(e.push(t),this.match(")"))break;if(this.expectCommaSeparator(),this.match(")"))break}return this.expect(")"),e},e.prototype.parseLeftHandSideExpressionAllowCall=function(){var e,t=this.lookahead,n=this.matchContextualKeyword("async"),r=this.context.allowIn;for(this.context.allowIn=!0,this.matchKeyword("super")&&this.context.inFunctionBody?(e=this.createNode(),this.nextToken(),e=this.finalize(e,new s.Super),this.match("(")||this.match(".")||this.match("[")||this.throwUnexpectedToken(this.lookahead)):e=this.inheritCoverGrammar(this.matchKeyword("new")?this.parseNewExpression:this.parsePrimaryExpression);;)if(this.match(".")){this.context.isBindingElement=!1,this.context.isAssignmentTarget=!0,this.expect(".");var i=this.parseIdentifierName();e=this.finalize(this.startNode(t),new s.StaticMemberExpression(e,i))}else if(this.match("(")){var a=n&&t.lineNumber===this.lookahead.lineNumber;this.context.isBindingElement=!1,this.context.isAssignmentTarget=!1;var o=a?this.parseAsyncArguments():this.parseArguments();if(e=this.finalize(this.startNode(t),new s.CallExpression(e,o)),a&&this.match("=>")){for(var u=0;u<o.length;++u)this.reinterpretExpressionAsPattern(o[u]);e={type:"ArrowParameterPlaceHolder",params:o,async:!0}}}else if(this.match("[")){this.context.isBindingElement=!1,this.context.isAssignmentTarget=!0,this.expect("[");i=this.isolateCoverGrammar(this.parseExpression);this.expect("]"),e=this.finalize(this.startNode(t),new s.ComputedMemberExpression(e,i))}else{if(10!==this.lookahead.type||!this.lookahead.head)break;var l=this.parseTemplateLiteral();e=this.finalize(this.startNode(t),new s.TaggedTemplateExpression(e,l))}return this.context.allowIn=r,e},e.prototype.parseSuper=function(){var e=this.createNode();return this.expectKeyword("super"),this.match("[")||this.match(".")||this.throwUnexpectedToken(this.lookahead),this.finalize(e,new s.Super)},e.prototype.parseLeftHandSideExpression=function(){r.assert(this.context.allowIn,"callee of new expression always allow in keyword.");for(var e=this.startNode(this.lookahead),t=this.matchKeyword("super")&&this.context.inFunctionBody?this.parseSuper():this.inheritCoverGrammar(this.matchKeyword("new")?this.parseNewExpression:this.parsePrimaryExpression);;)if(this.match("[")){this.context.isBindingElement=!1,this.context.isAssignmentTarget=!0,this.expect("[");var n=this.isolateCoverGrammar(this.parseExpression);this.expect("]"),t=this.finalize(e,new s.ComputedMemberExpression(t,n))}else if(this.match(".")){this.context.isBindingElement=!1,this.context.isAssignmentTarget=!0,this.expect(".");n=this.parseIdentifierName();t=this.finalize(e,new s.StaticMemberExpression(t,n))}else{if(10!==this.lookahead.type||!this.lookahead.head)break;var i=this.parseTemplateLiteral();t=this.finalize(e,new s.TaggedTemplateExpression(t,i))}return t},e.prototype.parseUpdateExpression=function(){var e,t=this.lookahead;if(this.match("++")||this.match("--")){var n=this.startNode(t),r=this.nextToken();e=this.inheritCoverGrammar(this.parseUnaryExpression),this.context.strict&&e.type===u.Syntax.Identifier&&this.scanner.isRestrictedWord(e.name)&&this.tolerateError(a.Messages.StrictLHSPrefix),this.context.isAssignmentTarget||this.tolerateError(a.Messages.InvalidLHSInAssignment);var i=!0;e=this.finalize(n,new s.UpdateExpression(r.value,e,i)),this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1}else if(e=this.inheritCoverGrammar(this.parseLeftHandSideExpressionAllowCall),!this.hasLineTerminator&&7===this.lookahead.type&&(this.match("++")||this.match("--"))){this.context.strict&&e.type===u.Syntax.Identifier&&this.scanner.isRestrictedWord(e.name)&&this.tolerateError(a.Messages.StrictLHSPostfix),this.context.isAssignmentTarget||this.tolerateError(a.Messages.InvalidLHSInAssignment),this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1;var o=this.nextToken().value;i=!1;e=this.finalize(this.startNode(t),new s.UpdateExpression(o,e,i))}return e},e.prototype.parseAwaitExpression=function(){var e=this.createNode();this.nextToken();var t=this.parseUnaryExpression();return this.finalize(e,new s.AwaitExpression(t))},e.prototype.parseUnaryExpression=function(){var e;if(this.match("+")||this.match("-")||this.match("~")||this.match("!")||this.matchKeyword("delete")||this.matchKeyword("void")||this.matchKeyword("typeof")){var t=this.startNode(this.lookahead),n=this.nextToken();e=this.inheritCoverGrammar(this.parseUnaryExpression),e=this.finalize(t,new s.UnaryExpression(n.value,e)),this.context.strict&&"delete"===e.operator&&e.argument.type===u.Syntax.Identifier&&this.tolerateError(a.Messages.StrictDelete),this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1}else e=this.context.await&&this.matchContextualKeyword("await")?this.parseAwaitExpression():this.parseUpdateExpression();return e},e.prototype.parseExponentiationExpression=function(){var e=this.lookahead,t=this.inheritCoverGrammar(this.parseUnaryExpression);if(t.type!==u.Syntax.UnaryExpression&&this.match("**")){this.nextToken(),this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1;var n=t,r=this.isolateCoverGrammar(this.parseExponentiationExpression);t=this.finalize(this.startNode(e),new s.BinaryExpression("**",n,r))}return t},e.prototype.binaryPrecedence=function(e){var t=e.value;return 7===e.type?this.operatorPrecedence[t]||0:4===e.type&&("instanceof"===t||this.context.allowIn&&"in"===t)?7:0},e.prototype.parseBinaryExpression=function(){var e=this.lookahead,t=this.inheritCoverGrammar(this.parseExponentiationExpression),n=this.lookahead,r=this.binaryPrecedence(n);if(r>0){this.nextToken(),this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1;for(var i=[e,this.lookahead],a=t,o=this.isolateCoverGrammar(this.parseExponentiationExpression),u=[a,n.value,o],l=[r];!((r=this.binaryPrecedence(this.lookahead))<=0);){for(;u.length>2&&r<=l[l.length-1];){o=u.pop();var c=u.pop();l.pop(),a=u.pop(),i.pop();var p=this.startNode(i[i.length-1]);u.push(this.finalize(p,new s.BinaryExpression(c,a,o)))}u.push(this.nextToken().value),l.push(r),i.push(this.lookahead),u.push(this.isolateCoverGrammar(this.parseExponentiationExpression))}var h=u.length-1;t=u[h];for(var d=i.pop();h>1;){var f=i.pop(),m=d&&d.lineStart;p=this.startNode(f,m),c=u[h-1];t=this.finalize(p,new s.BinaryExpression(c,u[h-2],t)),h-=2,d=f}}return t},e.prototype.parseConditionalExpression=function(){var e=this.lookahead,t=this.inheritCoverGrammar(this.parseBinaryExpression);if(this.match("?")){this.nextToken();var n=this.context.allowIn;this.context.allowIn=!0;var r=this.isolateCoverGrammar(this.parseAssignmentExpression);this.context.allowIn=n,this.expect(":");var i=this.isolateCoverGrammar(this.parseAssignmentExpression);t=this.finalize(this.startNode(e),new s.ConditionalExpression(t,r,i)),this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1}return t},e.prototype.checkPatternParam=function(e,t){switch(t.type){case u.Syntax.Identifier:this.validateParam(e,t,t.name);break;case u.Syntax.RestElement:this.checkPatternParam(e,t.argument);break;case u.Syntax.AssignmentPattern:this.checkPatternParam(e,t.left);break;case u.Syntax.ArrayPattern:for(var n=0;n<t.elements.length;n++)null!==t.elements[n]&&this.checkPatternParam(e,t.elements[n]);break;case u.Syntax.ObjectPattern:for(n=0;n<t.properties.length;n++)this.checkPatternParam(e,t.properties[n].value)}e.simple=e.simple&&t instanceof s.Identifier},e.prototype.reinterpretAsCoverFormalsList=function(e){var t,n=[e],r=!1;switch(e.type){case u.Syntax.Identifier:break;case"ArrowParameterPlaceHolder":n=e.params,r=e.async;break;default:return null}t={simple:!0,paramSet:{}};for(var i=0;i<n.length;++i){(s=n[i]).type===u.Syntax.AssignmentPattern?s.right.type===u.Syntax.YieldExpression&&(s.right.argument&&this.throwUnexpectedToken(this.lookahead),s.right.type=u.Syntax.Identifier,s.right.name="yield",delete s.right.argument,delete s.right.delegate):r&&s.type===u.Syntax.Identifier&&"await"===s.name&&this.throwUnexpectedToken(this.lookahead),this.checkPatternParam(t,s),n[i]=s}if(this.context.strict||!this.context.allowYield)for(i=0;i<n.length;++i){var s;(s=n[i]).type===u.Syntax.YieldExpression&&this.throwUnexpectedToken(this.lookahead)}if(t.message===a.Messages.StrictParamDupe){var o=this.context.strict?t.stricted:t.firstRestricted;this.throwUnexpectedToken(o,t.message)}return{simple:t.simple,params:n,stricted:t.stricted,firstRestricted:t.firstRestricted,message:t.message}},e.prototype.parseAssignmentExpression=function(){var e;if(!this.context.allowYield&&this.matchKeyword("yield"))e=this.parseYieldExpression();else{var t=this.lookahead,n=t;if(e=this.parseConditionalExpression(),3===n.type&&n.lineNumber===this.lookahead.lineNumber&&"async"===n.value&&(3===this.lookahead.type||this.matchKeyword("yield"))){var r=this.parsePrimaryExpression();this.reinterpretExpressionAsPattern(r),e={type:"ArrowParameterPlaceHolder",params:[r],async:!0}}if("ArrowParameterPlaceHolder"===e.type||this.match("=>")){this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1;var i=e.async,o=this.reinterpretAsCoverFormalsList(e);if(o){this.hasLineTerminator&&this.tolerateUnexpectedToken(this.lookahead),this.context.firstCoverInitializedNameError=null;var l=this.context.strict,c=this.context.allowStrictDirective;this.context.allowStrictDirective=o.simple;var p=this.context.allowYield,h=this.context.await;this.context.allowYield=!0,this.context.await=i;var d=this.startNode(t);this.expect("=>");var f=void 0;if(this.match("{")){var m=this.context.allowIn;this.context.allowIn=!0,f=this.parseFunctionSourceElements(),this.context.allowIn=m}else f=this.isolateCoverGrammar(this.parseAssignmentExpression);var y=f.type!==u.Syntax.BlockStatement;this.context.strict&&o.firstRestricted&&this.throwUnexpectedToken(o.firstRestricted,o.message),this.context.strict&&o.stricted&&this.tolerateUnexpectedToken(o.stricted,o.message),e=i?this.finalize(d,new s.AsyncArrowFunctionExpression(o.params,f,y)):this.finalize(d,new s.ArrowFunctionExpression(o.params,f,y)),this.context.strict=l,this.context.allowStrictDirective=c,this.context.allowYield=p,this.context.await=h}}else if(this.matchAssign()){if(this.context.isAssignmentTarget||this.tolerateError(a.Messages.InvalidLHSInAssignment),this.context.strict&&e.type===u.Syntax.Identifier){var g=e;this.scanner.isRestrictedWord(g.name)&&this.tolerateUnexpectedToken(n,a.Messages.StrictLHSAssignment),this.scanner.isStrictModeReservedWord(g.name)&&this.tolerateUnexpectedToken(n,a.Messages.StrictReservedWord)}this.match("=")?this.reinterpretExpressionAsPattern(e):(this.context.isAssignmentTarget=!1,this.context.isBindingElement=!1);var x=(n=this.nextToken()).value,v=this.isolateCoverGrammar(this.parseAssignmentExpression);e=this.finalize(this.startNode(t),new s.AssignmentExpression(x,e,v)),this.context.firstCoverInitializedNameError=null}}return e},e.prototype.parseExpression=function(){var e=this.lookahead,t=this.isolateCoverGrammar(this.parseAssignmentExpression);if(this.match(",")){var n=[];for(n.push(t);2!==this.lookahead.type&&this.match(",");)this.nextToken(),n.push(this.isolateCoverGrammar(this.parseAssignmentExpression));t=this.finalize(this.startNode(e),new s.SequenceExpression(n))}return t},e.prototype.parseStatementListItem=function(){var e;if(this.context.isAssignmentTarget=!0,this.context.isBindingElement=!0,4===this.lookahead.type)switch(this.lookahead.value){case"export":this.context.isModule||this.tolerateUnexpectedToken(this.lookahead,a.Messages.IllegalExportDeclaration),e=this.parseExportDeclaration();break;case"import":this.context.isModule||this.tolerateUnexpectedToken(this.lookahead,a.Messages.IllegalImportDeclaration),e=this.parseImportDeclaration();break;case"const":e=this.parseLexicalDeclaration({inFor:!1});break;case"function":e=this.parseFunctionDeclaration();break;case"class":e=this.parseClassDeclaration();break;case"let":e=this.isLexicalDeclaration()?this.parseLexicalDeclaration({inFor:!1}):this.parseStatement();break;default:e=this.parseStatement()}else e=this.parseStatement();return e},e.prototype.parseBlock=function(){var e=this.createNode();this.expect("{");for(var t=[];!this.match("}");)t.push(this.parseStatementListItem());return this.expect("}"),this.finalize(e,new s.BlockStatement(t))},e.prototype.parseLexicalBinding=function(e,t){var n=this.createNode(),r=this.parsePattern([],e);this.context.strict&&r.type===u.Syntax.Identifier&&this.scanner.isRestrictedWord(r.name)&&this.tolerateError(a.Messages.StrictVarName);var i=null;return"const"===e?this.matchKeyword("in")||this.matchContextualKeyword("of")||(this.match("=")?(this.nextToken(),i=this.isolateCoverGrammar(this.parseAssignmentExpression)):this.throwError(a.Messages.DeclarationMissingInitializer,"const")):(!t.inFor&&r.type!==u.Syntax.Identifier||this.match("="))&&(this.expect("="),i=this.isolateCoverGrammar(this.parseAssignmentExpression)),this.finalize(n,new s.VariableDeclarator(r,i))},e.prototype.parseBindingList=function(e,t){for(var n=[this.parseLexicalBinding(e,t)];this.match(",");)this.nextToken(),n.push(this.parseLexicalBinding(e,t));return n},e.prototype.isLexicalDeclaration=function(){var e=this.scanner.saveState();this.scanner.scanComments();var t=this.scanner.lex();return this.scanner.restoreState(e),3===t.type||7===t.type&&"["===t.value||7===t.type&&"{"===t.value||4===t.type&&"let"===t.value||4===t.type&&"yield"===t.value},e.prototype.parseLexicalDeclaration=function(e){var t=this.createNode(),n=this.nextToken().value;r.assert("let"===n||"const"===n,"Lexical declaration must be either let or const");var i=this.parseBindingList(n,e);return this.consumeSemicolon(),this.finalize(t,new s.VariableDeclaration(i,n))},e.prototype.parseBindingRestElement=function(e,t){var n=this.createNode();this.expect("...");var r=this.parsePattern(e,t);return this.finalize(n,new s.RestElement(r))},e.prototype.parseArrayPattern=function(e,t){var n=this.createNode();this.expect("[");for(var r=[];!this.match("]");)if(this.match(","))this.nextToken(),r.push(null);else{if(this.match("...")){r.push(this.parseBindingRestElement(e,t));break}r.push(this.parsePatternWithDefault(e,t)),this.match("]")||this.expect(",")}return this.expect("]"),this.finalize(n,new s.ArrayPattern(r))},e.prototype.parsePropertyPattern=function(e,t){var n,r,i=this.createNode(),a=!1,o=!1;if(3===this.lookahead.type){var u=this.lookahead;n=this.parseVariableIdentifier();var l=this.finalize(i,new s.Identifier(u.value));if(this.match("=")){e.push(u),o=!0,this.nextToken();var c=this.parseAssignmentExpression();r=this.finalize(this.startNode(u),new s.AssignmentPattern(l,c))}else this.match(":")?(this.expect(":"),r=this.parsePatternWithDefault(e,t)):(e.push(u),o=!0,r=l)}else a=this.match("["),n=this.parseObjectPropertyKey(),this.expect(":"),r=this.parsePatternWithDefault(e,t);return this.finalize(i,new s.Property("init",n,a,r,!1,o))},e.prototype.parseObjectPattern=function(e,t){var n=this.createNode(),r=[];for(this.expect("{");!this.match("}");)r.push(this.parsePropertyPattern(e,t)),this.match("}")||this.expect(",");return this.expect("}"),this.finalize(n,new s.ObjectPattern(r))},e.prototype.parsePattern=function(e,t){var n;return this.match("[")?n=this.parseArrayPattern(e,t):this.match("{")?n=this.parseObjectPattern(e,t):(!this.matchKeyword("let")||"const"!==t&&"let"!==t||this.tolerateUnexpectedToken(this.lookahead,a.Messages.LetInLexicalBinding),e.push(this.lookahead),n=this.parseVariableIdentifier(t)),n},e.prototype.parsePatternWithDefault=function(e,t){var n=this.lookahead,r=this.parsePattern(e,t);if(this.match("=")){this.nextToken();var i=this.context.allowYield;this.context.allowYield=!0;var a=this.isolateCoverGrammar(this.parseAssignmentExpression);this.context.allowYield=i,r=this.finalize(this.startNode(n),new s.AssignmentPattern(r,a))}return r},e.prototype.parseVariableIdentifier=function(e){var t=this.createNode(),n=this.nextToken();return 4===n.type&&"yield"===n.value?this.context.strict?this.tolerateUnexpectedToken(n,a.Messages.StrictReservedWord):this.context.allowYield||this.throwUnexpectedToken(n):3!==n.type?this.context.strict&&4===n.type&&this.scanner.isStrictModeReservedWord(n.value)?this.tolerateUnexpectedToken(n,a.Messages.StrictReservedWord):(this.context.strict||"let"!==n.value||"var"!==e)&&this.throwUnexpectedToken(n):(this.context.isModule||this.context.await)&&3===n.type&&"await"===n.value&&this.tolerateUnexpectedToken(n),this.finalize(t,new s.Identifier(n.value))},e.prototype.parseVariableDeclaration=function(e){var t=this.createNode(),n=this.parsePattern([],"var");this.context.strict&&n.type===u.Syntax.Identifier&&this.scanner.isRestrictedWord(n.name)&&this.tolerateError(a.Messages.StrictVarName);var r=null;return this.match("=")?(this.nextToken(),r=this.isolateCoverGrammar(this.parseAssignmentExpression)):n.type===u.Syntax.Identifier||e.inFor||this.expect("="),this.finalize(t,new s.VariableDeclarator(n,r))},e.prototype.parseVariableDeclarationList=function(e){var t={inFor:e.inFor},n=[];for(n.push(this.parseVariableDeclaration(t));this.match(",");)this.nextToken(),n.push(this.parseVariableDeclaration(t));return n},e.prototype.parseVariableStatement=function(){var e=this.createNode();this.expectKeyword("var");var t=this.parseVariableDeclarationList({inFor:!1});return this.consumeSemicolon(),this.finalize(e,new s.VariableDeclaration(t,"var"))},e.prototype.parseEmptyStatement=function(){var e=this.createNode();return this.expect(";"),this.finalize(e,new s.EmptyStatement)},e.prototype.parseExpressionStatement=function(){var e=this.createNode(),t=this.parseExpression();return this.consumeSemicolon(),this.finalize(e,new s.ExpressionStatement(t))},e.prototype.parseIfClause=function(){return this.context.strict&&this.matchKeyword("function")&&this.tolerateError(a.Messages.StrictFunction),this.parseStatement()},e.prototype.parseIfStatement=function(){var e,t=this.createNode(),n=null;this.expectKeyword("if"),this.expect("(");var r=this.parseExpression();return!this.match(")")&&this.config.tolerant?(this.tolerateUnexpectedToken(this.nextToken()),e=this.finalize(this.createNode(),new s.EmptyStatement)):(this.expect(")"),e=this.parseIfClause(),this.matchKeyword("else")&&(this.nextToken(),n=this.parseIfClause())),this.finalize(t,new s.IfStatement(r,e,n))},e.prototype.parseDoWhileStatement=function(){var e=this.createNode();this.expectKeyword("do");var t=this.context.inIteration;this.context.inIteration=!0;var n=this.parseStatement();this.context.inIteration=t,this.expectKeyword("while"),this.expect("(");var r=this.parseExpression();return!this.match(")")&&this.config.tolerant?this.tolerateUnexpectedToken(this.nextToken()):(this.expect(")"),this.match(";")&&this.nextToken()),this.finalize(e,new s.DoWhileStatement(n,r))},e.prototype.parseWhileStatement=function(){var e,t=this.createNode();this.expectKeyword("while"),this.expect("(");var n=this.parseExpression();if(!this.match(")")&&this.config.tolerant)this.tolerateUnexpectedToken(this.nextToken()),e=this.finalize(this.createNode(),new s.EmptyStatement);else{this.expect(")");var r=this.context.inIteration;this.context.inIteration=!0,e=this.parseStatement(),this.context.inIteration=r}return this.finalize(t,new s.WhileStatement(n,e))},e.prototype.parseForStatement=function(){var e,t,n,r=null,i=null,o=null,l=!0,c=this.createNode();if(this.expectKeyword("for"),this.expect("("),this.match(";"))this.nextToken();else if(this.matchKeyword("var")){r=this.createNode(),this.nextToken();var p=this.context.allowIn;this.context.allowIn=!1;var h=this.parseVariableDeclarationList({inFor:!0});if(this.context.allowIn=p,1===h.length&&this.matchKeyword("in")){var d=h[0];d.init&&(d.id.type===u.Syntax.ArrayPattern||d.id.type===u.Syntax.ObjectPattern||this.context.strict)&&this.tolerateError(a.Messages.ForInOfLoopInitializer,"for-in"),r=this.finalize(r,new s.VariableDeclaration(h,"var")),this.nextToken(),e=r,t=this.parseExpression(),r=null}else 1===h.length&&null===h[0].init&&this.matchContextualKeyword("of")?(r=this.finalize(r,new s.VariableDeclaration(h,"var")),this.nextToken(),e=r,t=this.parseAssignmentExpression(),r=null,l=!1):(r=this.finalize(r,new s.VariableDeclaration(h,"var")),this.expect(";"))}else if(this.matchKeyword("const")||this.matchKeyword("let")){r=this.createNode();var f=this.nextToken().value;if(this.context.strict||"in"!==this.lookahead.value){p=this.context.allowIn;this.context.allowIn=!1;h=this.parseBindingList(f,{inFor:!0});this.context.allowIn=p,1===h.length&&null===h[0].init&&this.matchKeyword("in")?(r=this.finalize(r,new s.VariableDeclaration(h,f)),this.nextToken(),e=r,t=this.parseExpression(),r=null):1===h.length&&null===h[0].init&&this.matchContextualKeyword("of")?(r=this.finalize(r,new s.VariableDeclaration(h,f)),this.nextToken(),e=r,t=this.parseAssignmentExpression(),r=null,l=!1):(this.consumeSemicolon(),r=this.finalize(r,new s.VariableDeclaration(h,f)))}else r=this.finalize(r,new s.Identifier(f)),this.nextToken(),e=r,t=this.parseExpression(),r=null}else{var m=this.lookahead;p=this.context.allowIn;if(this.context.allowIn=!1,r=this.inheritCoverGrammar(this.parseAssignmentExpression),this.context.allowIn=p,this.matchKeyword("in"))this.context.isAssignmentTarget&&r.type!==u.Syntax.AssignmentExpression||this.tolerateError(a.Messages.InvalidLHSInForIn),this.nextToken(),this.reinterpretExpressionAsPattern(r),e=r,t=this.parseExpression(),r=null;else if(this.matchContextualKeyword("of"))this.context.isAssignmentTarget&&r.type!==u.Syntax.AssignmentExpression||this.tolerateError(a.Messages.InvalidLHSInForLoop),this.nextToken(),this.reinterpretExpressionAsPattern(r),e=r,t=this.parseAssignmentExpression(),r=null,l=!1;else{if(this.match(",")){for(var y=[r];this.match(",");)this.nextToken(),y.push(this.isolateCoverGrammar(this.parseAssignmentExpression));r=this.finalize(this.startNode(m),new s.SequenceExpression(y))}this.expect(";")}}if(void 0===e&&(this.match(";")||(i=this.parseExpression()),this.expect(";"),this.match(")")||(o=this.parseExpression())),!this.match(")")&&this.config.tolerant)this.tolerateUnexpectedToken(this.nextToken()),n=this.finalize(this.createNode(),new s.EmptyStatement);else{this.expect(")");var g=this.context.inIteration;this.context.inIteration=!0,n=this.isolateCoverGrammar(this.parseStatement),this.context.inIteration=g}return void 0===e?this.finalize(c,new s.ForStatement(r,i,o,n)):l?this.finalize(c,new s.ForInStatement(e,t,n)):this.finalize(c,new s.ForOfStatement(e,t,n))},e.prototype.parseContinueStatement=function(){var e=this.createNode();this.expectKeyword("continue");var t=null;if(3===this.lookahead.type&&!this.hasLineTerminator){var n=this.parseVariableIdentifier();t=n;var r="$"+n.name;Object.prototype.hasOwnProperty.call(this.context.labelSet,r)||this.throwError(a.Messages.UnknownLabel,n.name)}return this.consumeSemicolon(),null!==t||this.context.inIteration||this.throwError(a.Messages.IllegalContinue),this.finalize(e,new s.ContinueStatement(t))},e.prototype.parseBreakStatement=function(){var e=this.createNode();this.expectKeyword("break");var t=null;if(3===this.lookahead.type&&!this.hasLineTerminator){var n=this.parseVariableIdentifier(),r="$"+n.name;Object.prototype.hasOwnProperty.call(this.context.labelSet,r)||this.throwError(a.Messages.UnknownLabel,n.name),t=n}return this.consumeSemicolon(),null!==t||this.context.inIteration||this.context.inSwitch||this.throwError(a.Messages.IllegalBreak),this.finalize(e,new s.BreakStatement(t))},e.prototype.parseReturnStatement=function(){this.context.inFunctionBody||this.tolerateError(a.Messages.IllegalReturn);var e=this.createNode();this.expectKeyword("return");var t=!this.match(";")&&!this.match("}")&&!this.hasLineTerminator&&2!==this.lookahead.type||8===this.lookahead.type||10===this.lookahead.type?this.parseExpression():null;return this.consumeSemicolon(),this.finalize(e,new s.ReturnStatement(t))},e.prototype.parseWithStatement=function(){this.context.strict&&this.tolerateError(a.Messages.StrictModeWith);var e,t=this.createNode();this.expectKeyword("with"),this.expect("(");var n=this.parseExpression();return!this.match(")")&&this.config.tolerant?(this.tolerateUnexpectedToken(this.nextToken()),e=this.finalize(this.createNode(),new s.EmptyStatement)):(this.expect(")"),e=this.parseStatement()),this.finalize(t,new s.WithStatement(n,e))},e.prototype.parseSwitchCase=function(){var e,t=this.createNode();this.matchKeyword("default")?(this.nextToken(),e=null):(this.expectKeyword("case"),e=this.parseExpression()),this.expect(":");for(var n=[];!(this.match("}")||this.matchKeyword("default")||this.matchKeyword("case"));)n.push(this.parseStatementListItem());return this.finalize(t,new s.SwitchCase(e,n))},e.prototype.parseSwitchStatement=function(){var e=this.createNode();this.expectKeyword("switch"),this.expect("(");var t=this.parseExpression();this.expect(")");var n=this.context.inSwitch;this.context.inSwitch=!0;var r=[],i=!1;for(this.expect("{");!this.match("}");){var o=this.parseSwitchCase();null===o.test&&(i&&this.throwError(a.Messages.MultipleDefaultsInSwitch),i=!0),r.push(o)}return this.expect("}"),this.context.inSwitch=n,this.finalize(e,new s.SwitchStatement(t,r))},e.prototype.parseLabelledStatement=function(){var e,t=this.createNode(),n=this.parseExpression();if(n.type===u.Syntax.Identifier&&this.match(":")){this.nextToken();var r=n,i="$"+r.name;Object.prototype.hasOwnProperty.call(this.context.labelSet,i)&&this.throwError(a.Messages.Redeclaration,"Label",r.name),this.context.labelSet[i]=!0;var o=void 0;if(this.matchKeyword("class"))this.tolerateUnexpectedToken(this.lookahead),o=this.parseClassDeclaration();else if(this.matchKeyword("function")){var l=this.lookahead,c=this.parseFunctionDeclaration();this.context.strict?this.tolerateUnexpectedToken(l,a.Messages.StrictFunction):c.generator&&this.tolerateUnexpectedToken(l,a.Messages.GeneratorInLegacyContext),o=c}else o=this.parseStatement();delete this.context.labelSet[i],e=new s.LabeledStatement(r,o)}else this.consumeSemicolon(),e=new s.ExpressionStatement(n);return this.finalize(t,e)},e.prototype.parseThrowStatement=function(){var e=this.createNode();this.expectKeyword("throw"),this.hasLineTerminator&&this.throwError(a.Messages.NewlineAfterThrow);var t=this.parseExpression();return this.consumeSemicolon(),this.finalize(e,new s.ThrowStatement(t))},e.prototype.parseCatchClause=function(){var e=this.createNode();this.expectKeyword("catch"),this.expect("("),this.match(")")&&this.throwUnexpectedToken(this.lookahead);for(var t=[],n=this.parsePattern(t),r={},i=0;i<t.length;i++){var o="$"+t[i].value;Object.prototype.hasOwnProperty.call(r,o)&&this.tolerateError(a.Messages.DuplicateBinding,t[i].value),r[o]=!0}this.context.strict&&n.type===u.Syntax.Identifier&&this.scanner.isRestrictedWord(n.name)&&this.tolerateError(a.Messages.StrictCatchVariable),this.expect(")");var l=this.parseBlock();return this.finalize(e,new s.CatchClause(n,l))},e.prototype.parseFinallyClause=function(){return this.expectKeyword("finally"),this.parseBlock()},e.prototype.parseTryStatement=function(){var e=this.createNode();this.expectKeyword("try");var t=this.parseBlock(),n=this.matchKeyword("catch")?this.parseCatchClause():null,r=this.matchKeyword("finally")?this.parseFinallyClause():null;return n||r||this.throwError(a.Messages.NoCatchOrFinally),this.finalize(e,new s.TryStatement(t,n,r))},e.prototype.parseDebuggerStatement=function(){var e=this.createNode();return this.expectKeyword("debugger"),this.consumeSemicolon(),this.finalize(e,new s.DebuggerStatement)},e.prototype.parseStatement=function(){var e;switch(this.lookahead.type){case 1:case 5:case 6:case 8:case 10:case 9:e=this.parseExpressionStatement();break;case 7:var t=this.lookahead.value;e="{"===t?this.parseBlock():"("===t?this.parseExpressionStatement():";"===t?this.parseEmptyStatement():this.parseExpressionStatement();break;case 3:e=this.matchAsyncFunction()?this.parseFunctionDeclaration():this.parseLabelledStatement();break;case 4:switch(this.lookahead.value){case"break":e=this.parseBreakStatement();break;case"continue":e=this.parseContinueStatement();break;case"debugger":e=this.parseDebuggerStatement();break;case"do":e=this.parseDoWhileStatement();break;case"for":e=this.parseForStatement();break;case"function":e=this.parseFunctionDeclaration();break;case"if":e=this.parseIfStatement();break;case"return":e=this.parseReturnStatement();break;case"switch":e=this.parseSwitchStatement();break;case"throw":e=this.parseThrowStatement();break;case"try":e=this.parseTryStatement();break;case"var":e=this.parseVariableStatement();break;case"while":e=this.parseWhileStatement();break;case"with":e=this.parseWithStatement();break;default:e=this.parseExpressionStatement()}break;default:e=this.throwUnexpectedToken(this.lookahead)}return e},e.prototype.parseFunctionSourceElements=function(){var e=this.createNode();this.expect("{");var t=this.parseDirectivePrologues(),n=this.context.labelSet,r=this.context.inIteration,i=this.context.inSwitch,a=this.context.inFunctionBody;for(this.context.labelSet={},this.context.inIteration=!1,this.context.inSwitch=!1,this.context.inFunctionBody=!0;2!==this.lookahead.type&&!this.match("}");)t.push(this.parseStatementListItem());return this.expect("}"),this.context.labelSet=n,this.context.inIteration=r,this.context.inSwitch=i,this.context.inFunctionBody=a,this.finalize(e,new s.BlockStatement(t))},e.prototype.validateParam=function(e,t,n){var r="$"+n;this.context.strict?(this.scanner.isRestrictedWord(n)&&(e.stricted=t,e.message=a.Messages.StrictParamName),Object.prototype.hasOwnProperty.call(e.paramSet,r)&&(e.stricted=t,e.message=a.Messages.StrictParamDupe)):e.firstRestricted||(this.scanner.isRestrictedWord(n)?(e.firstRestricted=t,e.message=a.Messages.StrictParamName):this.scanner.isStrictModeReservedWord(n)?(e.firstRestricted=t,e.message=a.Messages.StrictReservedWord):Object.prototype.hasOwnProperty.call(e.paramSet,r)&&(e.stricted=t,e.message=a.Messages.StrictParamDupe)),"function"==typeof Object.defineProperty?Object.defineProperty(e.paramSet,r,{value:!0,enumerable:!0,writable:!0,configurable:!0}):e.paramSet[r]=!0},e.prototype.parseRestElement=function(e){var t=this.createNode();this.expect("...");var n=this.parsePattern(e);return this.match("=")&&this.throwError(a.Messages.DefaultRestParameter),this.match(")")||this.throwError(a.Messages.ParameterAfterRestParameter),this.finalize(t,new s.RestElement(n))},e.prototype.parseFormalParameter=function(e){for(var t=[],n=this.match("...")?this.parseRestElement(t):this.parsePatternWithDefault(t),r=0;r<t.length;r++)this.validateParam(e,t[r],t[r].value);e.simple=e.simple&&n instanceof s.Identifier,e.params.push(n)},e.prototype.parseFormalParameters=function(e){var t;if(t={simple:!0,params:[],firstRestricted:e},this.expect("("),!this.match(")"))for(t.paramSet={};2!==this.lookahead.type&&(this.parseFormalParameter(t),!this.match(")"))&&(this.expect(","),!this.match(")")););return this.expect(")"),{simple:t.simple,params:t.params,stricted:t.stricted,firstRestricted:t.firstRestricted,message:t.message}},e.prototype.matchAsyncFunction=function(){var e=this.matchContextualKeyword("async");if(e){var t=this.scanner.saveState();this.scanner.scanComments();var n=this.scanner.lex();this.scanner.restoreState(t),e=t.lineNumber===n.lineNumber&&4===n.type&&"function"===n.value}return e},e.prototype.parseFunctionDeclaration=function(e){var t=this.createNode(),n=this.matchContextualKeyword("async");n&&this.nextToken(),this.expectKeyword("function");var r,i=!n&&this.match("*");i&&this.nextToken();var o=null,u=null;if(!e||!this.match("(")){var l=this.lookahead;o=this.parseVariableIdentifier(),this.context.strict?this.scanner.isRestrictedWord(l.value)&&this.tolerateUnexpectedToken(l,a.Messages.StrictFunctionName):this.scanner.isRestrictedWord(l.value)?(u=l,r=a.Messages.StrictFunctionName):this.scanner.isStrictModeReservedWord(l.value)&&(u=l,r=a.Messages.StrictReservedWord)}var c=this.context.await,p=this.context.allowYield;this.context.await=n,this.context.allowYield=!i;var h=this.parseFormalParameters(u),d=h.params,f=h.stricted;u=h.firstRestricted,h.message&&(r=h.message);var m=this.context.strict,y=this.context.allowStrictDirective;this.context.allowStrictDirective=h.simple;var g=this.parseFunctionSourceElements();return this.context.strict&&u&&this.throwUnexpectedToken(u,r),this.context.strict&&f&&this.tolerateUnexpectedToken(f,r),this.context.strict=m,this.context.allowStrictDirective=y,this.context.await=c,this.context.allowYield=p,n?this.finalize(t,new s.AsyncFunctionDeclaration(o,d,g)):this.finalize(t,new s.FunctionDeclaration(o,d,g,i))},e.prototype.parseFunctionExpression=function(){var e=this.createNode(),t=this.matchContextualKeyword("async");t&&this.nextToken(),this.expectKeyword("function");var n,r=!t&&this.match("*");r&&this.nextToken();var i,o=null,u=this.context.await,l=this.context.allowYield;if(this.context.await=t,this.context.allowYield=!r,!this.match("(")){var c=this.lookahead;o=this.context.strict||r||!this.matchKeyword("yield")?this.parseVariableIdentifier():this.parseIdentifierName(),this.context.strict?this.scanner.isRestrictedWord(c.value)&&this.tolerateUnexpectedToken(c,a.Messages.StrictFunctionName):this.scanner.isRestrictedWord(c.value)?(i=c,n=a.Messages.StrictFunctionName):this.scanner.isStrictModeReservedWord(c.value)&&(i=c,n=a.Messages.StrictReservedWord)}var p=this.parseFormalParameters(i),h=p.params,d=p.stricted;i=p.firstRestricted,p.message&&(n=p.message);var f=this.context.strict,m=this.context.allowStrictDirective;this.context.allowStrictDirective=p.simple;var y=this.parseFunctionSourceElements();return this.context.strict&&i&&this.throwUnexpectedToken(i,n),this.context.strict&&d&&this.tolerateUnexpectedToken(d,n),this.context.strict=f,this.context.allowStrictDirective=m,this.context.await=u,this.context.allowYield=l,t?this.finalize(e,new s.AsyncFunctionExpression(o,h,y)):this.finalize(e,new 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r=this.lookahead.value?a.Messages.UnexpectedToken:a.Messages.MissingFromClause;this.throwError(r,this.lookahead.value)}this.nextToken(),e=this.parseModuleSpecifier()}return this.consumeSemicolon(),this.finalize(t,new s.ImportDeclaration(n,e))},e.prototype.parseExportSpecifier=function(){var e=this.createNode(),t=this.parseIdentifierName(),n=t;return this.matchContextualKeyword("as")&&(this.nextToken(),n=this.parseIdentifierName()),this.finalize(e,new s.ExportSpecifier(t,n))},e.prototype.parseExportDeclaration=function(){this.context.inFunctionBody&&this.throwError(a.Messages.IllegalExportDeclaration);var e,t=this.createNode();if(this.expectKeyword("export"),this.matchKeyword("default"))if(this.nextToken(),this.matchKeyword("function")){var n=this.parseFunctionDeclaration(!0);e=this.finalize(t,new s.ExportDefaultDeclaration(n))}else if(this.matchKeyword("class")){n=this.parseClassDeclaration(!0);e=this.finalize(t,new s.ExportDefaultDeclaration(n))}else 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this.index=e,this.getComplexIdentifier();if(!i.Character.isIdentifierPart(t))break;++this.index}return this.source.slice(e,this.index)},e.prototype.getComplexIdentifier=function(){var e,t=this.codePointAt(this.index),n=i.Character.fromCodePoint(t);for(this.index+=n.length,92===t&&(117!==this.source.charCodeAt(this.index)&&this.throwUnexpectedToken(),++this.index,"{"===this.source[this.index]?(++this.index,e=this.scanUnicodeCodePointEscape()):null!==(e=this.scanHexEscape("u"))&&"\\"!==e&&i.Character.isIdentifierStart(e.charCodeAt(0))||this.throwUnexpectedToken(),n=e);!this.eof()&&(t=this.codePointAt(this.index),i.Character.isIdentifierPart(t));)n+=e=i.Character.fromCodePoint(t),this.index+=e.length,92===t&&(n=n.substr(0,n.length-1),117!==this.source.charCodeAt(this.index)&&this.throwUnexpectedToken(),++this.index,"{"===this.source[this.index]?(++this.index,e=this.scanUnicodeCodePointEscape()):null!==(e=this.scanHexEscape("u"))&&"\\"!==e&&i.Character.isIdentifierPart(e.charCodeAt(0))||this.throwUnexpectedToken(),n+=e);return n},e.prototype.octalToDecimal=function(e){var t="0"!==e,n=o(e);return!this.eof()&&i.Character.isOctalDigit(this.source.charCodeAt(this.index))&&(t=!0,n=8*n+o(this.source[this.index++]),"0123".indexOf(e)>=0&&!this.eof()&&i.Character.isOctalDigit(this.source.charCodeAt(this.index))&&(n=8*n+o(this.source[this.index++]))),{code:n,octal:t}},e.prototype.scanIdentifier=function(){var e,t=this.index,n=92===this.source.charCodeAt(t)?this.getComplexIdentifier():this.getIdentifier();if(3!==(e=1===n.length?3:this.isKeyword(n)?4:"null"===n?5:"true"===n||"false"===n?1:3)&&t+n.length!==this.index){var r=this.index;this.index=t,this.tolerateUnexpectedToken(a.Messages.InvalidEscapedReservedWord),this.index=r}return{type:e,value:n,lineNumber:this.lineNumber,lineStart:this.lineStart,start:t,end:this.index}},e.prototype.scanPunctuator=function(){var e=this.index,t=this.source[this.index];switch(t){case"(":case"{":"{"===t&&this.curlyStack.push("{"),++this.index;break;case".":++this.index,"."===this.source[this.index]&&"."===this.source[this.index+1]&&(this.index+=2,t="...");break;case"}":++this.index,this.curlyStack.pop();break;case")":case";":case",":case"[":case"]":case":":case"?":case"~":++this.index;break;default:">>>="===(t=this.source.substr(this.index,4))?this.index+=4:"==="===(t=t.substr(0,3))||"!=="===t||">>>"===t||"<<="===t||">>="===t||"**="===t?this.index+=3:"&&"===(t=t.substr(0,2))||"||"===t||"=="===t||"!="===t||"+="===t||"-="===t||"*="===t||"/="===t||"++"===t||"--"===t||"<<"===t||">>"===t||"&="===t||"|="===t||"^="===t||"%="===t||"<="===t||">="===t||"=>"===t||"**"===t?this.index+=2:(t=this.source[this.index],"<>=!+-*%&|^/".indexOf(t)>=0&&++this.index)}return this.index===e&&this.throwUnexpectedToken(),{type:7,value:t,lineNumber:this.lineNumber,lineStart:this.lineStart,start:e,end:this.index}},e.prototype.scanHexLiteral=function(e){for(var t="";!this.eof()&&i.Character.isHexDigit(this.source.charCodeAt(this.index));)t+=this.source[this.index++];return 0===t.length&&this.throwUnexpectedToken(),i.Character.isIdentifierStart(this.source.charCodeAt(this.index))&&this.throwUnexpectedToken(),{type:6,value:parseInt("0x"+t,16),lineNumber:this.lineNumber,lineStart:this.lineStart,start:e,end:this.index}},e.prototype.scanBinaryLiteral=function(e){for(var t,n="";!this.eof()&&("0"===(t=this.source[this.index])||"1"===t);)n+=this.source[this.index++];return 0===n.length&&this.throwUnexpectedToken(),this.eof()||(t=this.source.charCodeAt(this.index),(i.Character.isIdentifierStart(t)||i.Character.isDecimalDigit(t))&&this.throwUnexpectedToken()),{type:6,value:parseInt(n,2),lineNumber:this.lineNumber,lineStart:this.lineStart,start:e,end:this.index}},e.prototype.scanOctalLiteral=function(e,t){var n="",r=!1;for(i.Character.isOctalDigit(e.charCodeAt(0))?(r=!0,n="0"+this.source[this.index++]):++this.index;!this.eof()&&i.Character.isOctalDigit(this.source.charCodeAt(this.index));)n+=this.source[this.index++];return r||0!==n.length||this.throwUnexpectedToken(),(i.Character.isIdentifierStart(this.source.charCodeAt(this.index))||i.Character.isDecimalDigit(this.source.charCodeAt(this.index)))&&this.throwUnexpectedToken(),{type:6,value:parseInt(n,8),octal:r,lineNumber:this.lineNumber,lineStart:this.lineStart,start:t,end:this.index}},e.prototype.isImplicitOctalLiteral=function(){for(var e=this.index+1;e<this.length;++e){var t=this.source[e];if("8"===t||"9"===t)return!1;if(!i.Character.isOctalDigit(t.charCodeAt(0)))return!0}return!0},e.prototype.scanNumericLiteral=function(){var e=this.index,t=this.source[e];r.assert(i.Character.isDecimalDigit(t.charCodeAt(0))||"."===t,"Numeric literal must start with a decimal digit or a decimal point");var n="";if("."!==t){if(n=this.source[this.index++],t=this.source[this.index],"0"===n){if("x"===t||"X"===t)return++this.index,this.scanHexLiteral(e);if("b"===t||"B"===t)return++this.index,this.scanBinaryLiteral(e);if("o"===t||"O"===t)return this.scanOctalLiteral(t,e);if(t&&i.Character.isOctalDigit(t.charCodeAt(0))&&this.isImplicitOctalLiteral())return this.scanOctalLiteral(t,e)}for(;i.Character.isDecimalDigit(this.source.charCodeAt(this.index));)n+=this.source[this.index++];t=this.source[this.index]}if("."===t){for(n+=this.source[this.index++];i.Character.isDecimalDigit(this.source.charCodeAt(this.index));)n+=this.source[this.index++];t=this.source[this.index]}if("e"===t||"E"===t)if(n+=this.source[this.index++],"+"!==(t=this.source[this.index])&&"-"!==t||(n+=this.source[this.index++]),i.Character.isDecimalDigit(this.source.charCodeAt(this.index)))for(;i.Character.isDecimalDigit(this.source.charCodeAt(this.index));)n+=this.source[this.index++];else this.throwUnexpectedToken();return i.Character.isIdentifierStart(this.source.charCodeAt(this.index))&&this.throwUnexpectedToken(),{type:6,value:parseFloat(n),lineNumber:this.lineNumber,lineStart:this.lineStart,start:e,end:this.index}},e.prototype.scanStringLiteral=function(){var e=this.index,t=this.source[e];r.assert("'"===t||'"'===t,"String literal must starts with a quote"),++this.index;for(var n=!1,s="";!this.eof();){var o=this.source[this.index++];if(o===t){t="";break}if("\\"===o)if((o=this.source[this.index++])&&i.Character.isLineTerminator(o.charCodeAt(0)))++this.lineNumber,"\r"===o&&"\n"===this.source[this.index]&&++this.index,this.lineStart=this.index;else switch(o){case"u":if("{"===this.source[this.index])++this.index,s+=this.scanUnicodeCodePointEscape();else{var u=this.scanHexEscape(o);null===u&&this.throwUnexpectedToken(),s+=u}break;case"x":var l=this.scanHexEscape(o);null===l&&this.throwUnexpectedToken(a.Messages.InvalidHexEscapeSequence),s+=l;break;case"n":s+="\n";break;case"r":s+="\r";break;case"t":s+="\t";break;case"b":s+="\b";break;case"f":s+="\f";break;case"v":s+="\v";break;case"8":case"9":s+=o,this.tolerateUnexpectedToken();break;default:if(o&&i.Character.isOctalDigit(o.charCodeAt(0))){var c=this.octalToDecimal(o);n=c.octal||n,s+=String.fromCharCode(c.code)}else s+=o}else{if(i.Character.isLineTerminator(o.charCodeAt(0)))break;s+=o}}return""!==t&&(this.index=e,this.throwUnexpectedToken()),{type:8,value:s,octal:n,lineNumber:this.lineNumber,lineStart:this.lineStart,start:e,end:this.index}},e.prototype.scanTemplate=function(){var e="",t=!1,n=this.index,r="`"===this.source[n],s=!1,o=2;for(++this.index;!this.eof();){var u=this.source[this.index++];if("`"===u){o=1,s=!0,t=!0;break}if("$"===u){if("{"===this.source[this.index]){this.curlyStack.push("${"),++this.index,t=!0;break}e+=u}else if("\\"===u)if(u=this.source[this.index++],i.Character.isLineTerminator(u.charCodeAt(0)))++this.lineNumber,"\r"===u&&"\n"===this.source[this.index]&&++this.index,this.lineStart=this.index;else switch(u){case"n":e+="\n";break;case"r":e+="\r";break;case"t":e+="\t";break;case"u":if("{"===this.source[this.index])++this.index,e+=this.scanUnicodeCodePointEscape();else{var l=this.index,c=this.scanHexEscape(u);null!==c?e+=c:(this.index=l,e+=u)}break;case"x":var p=this.scanHexEscape(u);null===p&&this.throwUnexpectedToken(a.Messages.InvalidHexEscapeSequence),e+=p;break;case"b":e+="\b";break;case"f":e+="\f";break;case"v":e+="\v";break;default:"0"===u?(i.Character.isDecimalDigit(this.source.charCodeAt(this.index))&&this.throwUnexpectedToken(a.Messages.TemplateOctalLiteral),e+="\0"):i.Character.isOctalDigit(u.charCodeAt(0))?this.throwUnexpectedToken(a.Messages.TemplateOctalLiteral):e+=u}else i.Character.isLineTerminator(u.charCodeAt(0))?(++this.lineNumber,"\r"===u&&"\n"===this.source[this.index]&&++this.index,this.lineStart=this.index,e+="\n"):e+=u}return t||this.throwUnexpectedToken(),r||this.curlyStack.pop(),{type:10,value:this.source.slice(n+1,this.index-o),cooked:e,head:r,tail:s,lineNumber:this.lineNumber,lineStart:this.lineStart,start:n,end:this.index}},e.prototype.testRegExp=function(e,t){var n=e,r=this;t.indexOf("u")>=0&&(n=n.replace(/\\u\{([0-9a-fA-F]+)\}|\\u([a-fA-F0-9]{4})/g,function(e,t,n){var i=parseInt(t||n,16);return i>1114111&&r.throwUnexpectedToken(a.Messages.InvalidRegExp),i<=65535?String.fromCharCode(i):"￿"}).replace(/[\uD800-\uDBFF][\uDC00-\uDFFF]/g,"￿"));try{RegExp(n)}catch(e){this.throwUnexpectedToken(a.Messages.InvalidRegExp)}try{return new RegExp(e,t)}catch(e){return null}},e.prototype.scanRegExpBody=function(){var e=this.source[this.index];r.assert("/"===e,"Regular expression literal must start with a slash");for(var t=this.source[this.index++],n=!1,s=!1;!this.eof();)if(t+=e=this.source[this.index++],"\\"===e)e=this.source[this.index++],i.Character.isLineTerminator(e.charCodeAt(0))&&this.throwUnexpectedToken(a.Messages.UnterminatedRegExp),t+=e;else if(i.Character.isLineTerminator(e.charCodeAt(0)))this.throwUnexpectedToken(a.Messages.UnterminatedRegExp);else if(n)"]"===e&&(n=!1);else{if("/"===e){s=!0;break}"["===e&&(n=!0)}return s||this.throwUnexpectedToken(a.Messages.UnterminatedRegExp),t.substr(1,t.length-2)},e.prototype.scanRegExpFlags=function(){for(var e="";!this.eof();){var t=this.source[this.index];if(!i.Character.isIdentifierPart(t.charCodeAt(0)))break;if(++this.index,"\\"!==t||this.eof())e+=t,t;else if("u"===(t=this.source[this.index])){++this.index;var n=this.index,r=this.scanHexEscape("u");if(null!==r)for(e+=r,"\\u";n<this.index;++n)this.source[n];else this.index=n,e+="u","\\u";this.tolerateUnexpectedToken()}else"\\",this.tolerateUnexpectedToken()}return e},e.prototype.scanRegExp=function(){var e=this.index,t=this.scanRegExpBody(),n=this.scanRegExpFlags();return{type:9,value:"",pattern:t,flags:n,regex:this.testRegExp(t,n),lineNumber:this.lineNumber,lineStart:this.lineStart,start:e,end:this.index}},e.prototype.lex=function(){if(this.eof())return{type:2,value:"",lineNumber:this.lineNumber,lineStart:this.lineStart,start:this.index,end:this.index};var e=this.source.charCodeAt(this.index);return 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t},e.prototype.push=function(e){7===e.type||4===e.type?("{"===e.value?this.curly=this.values.length:"("===e.value&&(this.paren=this.values.length),this.values.push(e.value)):this.values.push(null)},e}(),o=function(){function e(e,t){this.errorHandler=new r.ErrorHandler,this.errorHandler.tolerant=!!t&&("boolean"==typeof t.tolerant&&t.tolerant),this.scanner=new i.Scanner(e,this.errorHandler),this.scanner.trackComment=!!t&&("boolean"==typeof t.comment&&t.comment),this.trackRange=!!t&&("boolean"==typeof t.range&&t.range),this.trackLoc=!!t&&("boolean"==typeof t.loc&&t.loc),this.buffer=[],this.reader=new s}return e.prototype.errors=function(){return this.errorHandler.errors},e.prototype.getNextToken=function(){if(0===this.buffer.length){var e=this.scanner.scanComments();if(this.scanner.trackComment)for(var t=0;t<e.length;++t){var 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r=e("./util"),i=Object.prototype.hasOwnProperty,a="undefined"!=typeof Map;function s(){this._array=[],this._set=a?new Map:Object.create(null)}s.fromArray=function(e,t){for(var n=new s,r=0,i=e.length;r<i;r++)n.add(e[r],t);return n},s.prototype.size=function(){return a?this._set.size:Object.getOwnPropertyNames(this._set).length},s.prototype.add=function(e,t){var n=a?e:r.toSetString(e),s=a?this.has(e):i.call(this._set,n),o=this._array.length;s&&!t||this._array.push(e),s||(a?this._set.set(e,o):this._set[n]=o)},s.prototype.has=function(e){if(a)return this._set.has(e);var t=r.toSetString(e);return i.call(this._set,t)},s.prototype.indexOf=function(e){if(a){var t=this._set.get(e);if(t>=0)return t}else{var n=r.toSetString(e);if(i.call(this._set,n))return this._set[n]}throw new Error('"'+e+'" is not in the set.')},s.prototype.at=function(e){if(e>=0&&e<this._array.length)return this._array[e];throw new Error("No element indexed by "+e)},s.prototype.toArray=function(){return this._array.slice()},n.ArraySet=s},{"./util":55}],47:[function(e,t,n){var r=e("./base64");n.encode=function(e){var t,n="",i=function(e){return e<0?1+(-e<<1):0+(e<<1)}(e);do{t=31&i,(i>>>=5)>0&&(t|=32),n+=r.encode(t)}while(i>0);return n},n.decode=function(e,t,n){var i,a,s,o,u=e.length,l=0,c=0;do{if(t>=u)throw new Error("Expected more digits in base 64 VLQ value.");if(-1===(a=r.decode(e.charCodeAt(t++))))throw new Error("Invalid base64 digit: "+e.charAt(t-1));i=!!(32&a),l+=(a&=31)<<c,c+=5}while(i);n.value=(o=(s=l)>>1,1==(1&s)?-o:o),n.rest=t}},{"./base64":48}],48:[function(e,t,n){var r="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split("");n.encode=function(e){if(0<=e&&e<r.length)return r[e];throw new TypeError("Must be between 0 and 63: "+e)},n.decode=function(e){return 65<=e&&e<=90?e-65:97<=e&&e<=122?e-97+26:48<=e&&e<=57?e-48+52:43==e?62:47==e?63:-1}},{}],49:[function(e,t,n){n.GREATEST_LOWER_BOUND=1,n.LEAST_UPPER_BOUND=2,n.search=function(e,t,r,i){if(0===t.length)return-1;var a=function e(t,r,i,a,s,o){var u=Math.floor((r-t)/2)+t,l=s(i,a[u],!0);return 0===l?u:l>0?r-u>1?e(u,r,i,a,s,o):o==n.LEAST_UPPER_BOUND?r<a.length?r:-1:u:u-t>1?e(t,u,i,a,s,o):o==n.LEAST_UPPER_BOUND?u:t<0?-1:t}(-1,t.length,e,t,r,i||n.GREATEST_LOWER_BOUND);if(a<0)return-1;for(;a-1>=0&&0===r(t[a],t[a-1],!0);)--a;return a}},{}],50:[function(e,t,n){var r=e("./util");function i(){this._array=[],this._sorted=!0,this._last={generatedLine:-1,generatedColumn:0}}i.prototype.unsortedForEach=function(e,t){this._array.forEach(e,t)},i.prototype.add=function(e){var t,n,i,a,s,o;t=this._last,n=e,i=t.generatedLine,a=n.generatedLine,s=t.generatedColumn,o=n.generatedColumn,a>i||a==i&&o>=s||r.compareByGeneratedPositionsInflated(t,n)<=0?(this._last=e,this._array.push(e)):(this._sorted=!1,this._array.push(e))},i.prototype.toArray=function(){return this._sorted||(this._array.sort(r.compareByGeneratedPositionsInflated),this._sorted=!0),this._array},n.MappingList=i},{"./util":55}],51:[function(e,t,n){function r(e,t,n){var r=e[t];e[t]=e[n],e[n]=r}function i(e,t,n,a){if(n<a){var s=n-1;r(e,(c=n,p=a,Math.round(c+Math.random()*(p-c))),a);for(var o=e[a],u=n;u<a;u++)t(e[u],o)<=0&&r(e,s+=1,u);r(e,s+1,u);var l=s+1;i(e,t,n,l-1),i(e,t,l+1,a)}var c,p}n.quickSort=function(e,t){i(e,t,0,e.length-1)}},{}],52:[function(e,t,n){var r=e("./util"),i=e("./binary-search"),a=e("./array-set").ArraySet,s=e("./base64-vlq"),o=e("./quick-sort").quickSort;function u(e,t){var n=e;return"string"==typeof e&&(n=r.parseSourceMapInput(e)),null!=n.sections?new p(n,t):new l(n,t)}function l(e,t){var n=e;"string"==typeof e&&(n=r.parseSourceMapInput(e));var i=r.getArg(n,"version"),s=r.getArg(n,"sources"),o=r.getArg(n,"names",[]),u=r.getArg(n,"sourceRoot",null),l=r.getArg(n,"sourcesContent",null),c=r.getArg(n,"mappings"),p=r.getArg(n,"file",null);if(i!=this._version)throw new Error("Unsupported version: "+i);u&&(u=r.normalize(u)),s=s.map(String).map(r.normalize).map(function(e){return u&&r.isAbsolute(u)&&r.isAbsolute(e)?r.relative(u,e):e}),this._names=a.fromArray(o.map(String),!0),this._sources=a.fromArray(s,!0),this._absoluteSources=this._sources.toArray().map(function(e){return r.computeSourceURL(u,e,t)}),this.sourceRoot=u,this.sourcesContent=l,this._mappings=c,this._sourceMapURL=t,this.file=p}function c(){this.generatedLine=0,this.generatedColumn=0,this.source=null,this.originalLine=null,this.originalColumn=null,this.name=null}function p(e,t){var n=e;"string"==typeof e&&(n=r.parseSourceMapInput(e));var i=r.getArg(n,"version"),s=r.getArg(n,"sections");if(i!=this._version)throw new Error("Unsupported version: "+i);this._sources=new a,this._names=new a;var o={line:-1,column:0};this._sections=s.map(function(e){if(e.url)throw new Error("Support for url field in sections not implemented.");var n=r.getArg(e,"offset"),i=r.getArg(n,"line"),a=r.getArg(n,"column");if(i<o.line||i===o.line&&a<o.column)throw new Error("Section offsets must be ordered and non-overlapping.");return o=n,{generatedOffset:{generatedLine:i+1,generatedColumn:a+1},consumer:new u(r.getArg(e,"map"),t)}})}u.fromSourceMap=function(e,t){return l.fromSourceMap(e,t)},u.prototype._version=3,u.prototype.__generatedMappings=null,Object.defineProperty(u.prototype,"_generatedMappings",{configurable:!0,enumerable:!0,get:function(){return this.__generatedMappings||this._parseMappings(this._mappings,this.sourceRoot),this.__generatedMappings}}),u.prototype.__originalMappings=null,Object.defineProperty(u.prototype,"_originalMappings",{configurable:!0,enumerable:!0,get:function(){return this.__originalMappings||this._parseMappings(this._mappings,this.sourceRoot),this.__originalMappings}}),u.prototype._charIsMappingSeparator=function(e,t){var n=e.charAt(t);return";"===n||","===n},u.prototype._parseMappings=function(e,t){throw new Error("Subclasses must implement _parseMappings")},u.GENERATED_ORDER=1,u.ORIGINAL_ORDER=2,u.GREATEST_LOWER_BOUND=1,u.LEAST_UPPER_BOUND=2,u.prototype.eachMapping=function(e,t,n){var i,a=t||null;switch(n||u.GENERATED_ORDER){case u.GENERATED_ORDER:i=this._generatedMappings;break;case u.ORIGINAL_ORDER:i=this._originalMappings;break;default:throw new Error("Unknown order of iteration.")}var s=this.sourceRoot;i.map(function(e){var t=null===e.source?null:this._sources.at(e.source);return{source:t=r.computeSourceURL(s,t,this._sourceMapURL),generatedLine:e.generatedLine,generatedColumn:e.generatedColumn,originalLine:e.originalLine,originalColumn:e.originalColumn,name:null===e.name?null:this._names.at(e.name)}},this).forEach(e,a)},u.prototype.allGeneratedPositionsFor=function(e){var t=r.getArg(e,"line"),n={source:r.getArg(e,"source"),originalLine:t,originalColumn:r.getArg(e,"column",0)};if(n.source=this._findSourceIndex(n.source),n.source<0)return[];var a=[],s=this._findMapping(n,this._originalMappings,"originalLine","originalColumn",r.compareByOriginalPositions,i.LEAST_UPPER_BOUND);if(s>=0){var o=this._originalMappings[s];if(void 0===e.column)for(var u=o.originalLine;o&&o.originalLine===u;)a.push({line:r.getArg(o,"generatedLine",null),column:r.getArg(o,"generatedColumn",null),lastColumn:r.getArg(o,"lastGeneratedColumn",null)}),o=this._originalMappings[++s];else for(var l=o.originalColumn;o&&o.originalLine===t&&o.originalColumn==l;)a.push({line:r.getArg(o,"generatedLine",null),column:r.getArg(o,"generatedColumn",null),lastColumn:r.getArg(o,"lastGeneratedColumn",null)}),o=this._originalMappings[++s]}return a},n.SourceMapConsumer=u,l.prototype=Object.create(u.prototype),l.prototype.consumer=u,l.prototype._findSourceIndex=function(e){var t,n=e;if(null!=this.sourceRoot&&(n=r.relative(this.sourceRoot,n)),this._sources.has(n))return this._sources.indexOf(n);for(t=0;t<this._absoluteSources.length;++t)if(this._absoluteSources[t]==e)return t;return-1},l.fromSourceMap=function(e,t){var n=Object.create(l.prototype),i=n._names=a.fromArray(e._names.toArray(),!0),s=n._sources=a.fromArray(e._sources.toArray(),!0);n.sourceRoot=e._sourceRoot,n.sourcesContent=e._generateSourcesContent(n._sources.toArray(),n.sourceRoot),n.file=e._file,n._sourceMapURL=t,n._absoluteSources=n._sources.toArray().map(function(e){return r.computeSourceURL(n.sourceRoot,e,t)});for(var u=e._mappings.toArray().slice(),p=n.__generatedMappings=[],h=n.__originalMappings=[],d=0,f=u.length;d<f;d++){var m=u[d],y=new c;y.generatedLine=m.generatedLine,y.generatedColumn=m.generatedColumn,m.source&&(y.source=s.indexOf(m.source),y.originalLine=m.originalLine,y.originalColumn=m.originalColumn,m.name&&(y.name=i.indexOf(m.name)),h.push(y)),p.push(y)}return o(n.__originalMappings,r.compareByOriginalPositions),n},l.prototype._version=3,Object.defineProperty(l.prototype,"sources",{get:function(){return this._absoluteSources.slice()}}),l.prototype._parseMappings=function(e,t){for(var n,i,a,u,l,p=1,h=0,d=0,f=0,m=0,y=0,g=e.length,x=0,v={},b={},E=[],S=[];x<g;)if(";"===e.charAt(x))p++,x++,h=0;else if(","===e.charAt(x))x++;else{for((n=new c).generatedLine=p,u=x;u<g&&!this._charIsMappingSeparator(e,u);u++);if(a=v[i=e.slice(x,u)])x+=i.length;else{for(a=[];x<u;)s.decode(e,x,b),l=b.value,x=b.rest,a.push(l);if(2===a.length)throw new Error("Found a source, but no line and column");if(3===a.length)throw new Error("Found a source and line, but no column");v[i]=a}n.generatedColumn=h+a[0],h=n.generatedColumn,a.length>1&&(n.source=m+a[1],m+=a[1],n.originalLine=d+a[2],d=n.originalLine,n.originalLine+=1,n.originalColumn=f+a[3],f=n.originalColumn,a.length>4&&(n.name=y+a[4],y+=a[4])),S.push(n),"number"==typeof n.originalLine&&E.push(n)}o(S,r.compareByGeneratedPositionsDeflated),this.__generatedMappings=S,o(E,r.compareByOriginalPositions),this.__originalMappings=E},l.prototype._findMapping=function(e,t,n,r,a,s){if(e[n]<=0)throw new TypeError("Line must be greater than or equal to 1, got "+e[n]);if(e[r]<0)throw new TypeError("Column must be greater than or equal to 0, got "+e[r]);return i.search(e,t,a,s)},l.prototype.computeColumnSpans=function(){for(var e=0;e<this._generatedMappings.length;++e){var t=this._generatedMappings[e];if(e+1<this._generatedMappings.length){var n=this._generatedMappings[e+1];if(t.generatedLine===n.generatedLine){t.lastGeneratedColumn=n.generatedColumn-1;continue}}t.lastGeneratedColumn=1/0}},l.prototype.originalPositionFor=function(e){var t={generatedLine:r.getArg(e,"line"),generatedColumn:r.getArg(e,"column")},n=this._findMapping(t,this._generatedMappings,"generatedLine","generatedColumn",r.compareByGeneratedPositionsDeflated,r.getArg(e,"bias",u.GREATEST_LOWER_BOUND));if(n>=0){var i=this._generatedMappings[n];if(i.generatedLine===t.generatedLine){var a=r.getArg(i,"source",null);null!==a&&(a=this._sources.at(a),a=r.computeSourceURL(this.sourceRoot,a,this._sourceMapURL));var s=r.getArg(i,"name",null);return null!==s&&(s=this._names.at(s)),{source:a,line:r.getArg(i,"originalLine",null),column:r.getArg(i,"originalColumn",null),name:s}}}return{source:null,line:null,column:null,name:null}},l.prototype.hasContentsOfAllSources=function(){return!!this.sourcesContent&&(this.sourcesContent.length>=this._sources.size()&&!this.sourcesContent.some(function(e){return null==e}))},l.prototype.sourceContentFor=function(e,t){if(!this.sourcesContent)return null;var n=this._findSourceIndex(e);if(n>=0)return this.sourcesContent[n];var i,a=e;if(null!=this.sourceRoot&&(a=r.relative(this.sourceRoot,a)),null!=this.sourceRoot&&(i=r.urlParse(this.sourceRoot))){var s=a.replace(/^file:\/\//,"");if("file"==i.scheme&&this._sources.has(s))return this.sourcesContent[this._sources.indexOf(s)];if((!i.path||"/"==i.path)&&this._sources.has("/"+a))return this.sourcesContent[this._sources.indexOf("/"+a)]}if(t)return null;throw new Error('"'+a+'" is not in the SourceMap.')},l.prototype.generatedPositionFor=function(e){var t=r.getArg(e,"source");if((t=this._findSourceIndex(t))<0)return{line:null,column:null,lastColumn:null};var n={source:t,originalLine:r.getArg(e,"line"),originalColumn:r.getArg(e,"column")},i=this._findMapping(n,this._originalMappings,"originalLine","originalColumn",r.compareByOriginalPositions,r.getArg(e,"bias",u.GREATEST_LOWER_BOUND));if(i>=0){var a=this._originalMappings[i];if(a.source===n.source)return{line:r.getArg(a,"generatedLine",null),column:r.getArg(a,"generatedColumn",null),lastColumn:r.getArg(a,"lastGeneratedColumn",null)}}return{line:null,column:null,lastColumn:null}},n.BasicSourceMapConsumer=l,p.prototype=Object.create(u.prototype),p.prototype.constructor=u,p.prototype._version=3,Object.defineProperty(p.prototype,"sources",{get:function(){for(var e=[],t=0;t<this._sections.length;t++)for(var n=0;n<this._sections[t].consumer.sources.length;n++)e.push(this._sections[t].consumer.sources[n]);return e}}),p.prototype.originalPositionFor=function(e){var t={generatedLine:r.getArg(e,"line"),generatedColumn:r.getArg(e,"column")},n=i.search(t,this._sections,function(e,t){var n=e.generatedLine-t.generatedOffset.generatedLine;return n||e.generatedColumn-t.generatedOffset.generatedColumn}),a=this._sections[n];return a?a.consumer.originalPositionFor({line:t.generatedLine-(a.generatedOffset.generatedLine-1),column:t.generatedColumn-(a.generatedOffset.generatedLine===t.generatedLine?a.generatedOffset.generatedColumn-1:0),bias:e.bias}):{source:null,line:null,column:null,name:null}},p.prototype.hasContentsOfAllSources=function(){return this._sections.every(function(e){return e.consumer.hasContentsOfAllSources()})},p.prototype.sourceContentFor=function(e,t){for(var n=0;n<this._sections.length;n++){var r=this._sections[n].consumer.sourceContentFor(e,!0);if(r)return r}if(t)return null;throw new Error('"'+e+'" is not in the SourceMap.')},p.prototype.generatedPositionFor=function(e){for(var t=0;t<this._sections.length;t++){var n=this._sections[t];if(-1!==n.consumer._findSourceIndex(r.getArg(e,"source"))){var i=n.consumer.generatedPositionFor(e);if(i)return{line:i.line+(n.generatedOffset.generatedLine-1),column:i.column+(n.generatedOffset.generatedLine===i.line?n.generatedOffset.generatedColumn-1:0)}}}return{line:null,column:null}},p.prototype._parseMappings=function(e,t){this.__generatedMappings=[],this.__originalMappings=[];for(var n=0;n<this._sections.length;n++)for(var i=this._sections[n],a=i.consumer._generatedMappings,s=0;s<a.length;s++){var u=a[s],l=i.consumer._sources.at(u.source);l=r.computeSourceURL(i.consumer.sourceRoot,l,this._sourceMapURL),this._sources.add(l),l=this._sources.indexOf(l);var c=null;u.name&&(c=i.consumer._names.at(u.name),this._names.add(c),c=this._names.indexOf(c));var p={source:l,generatedLine:u.generatedLine+(i.generatedOffset.generatedLine-1),generatedColumn:u.generatedColumn+(i.generatedOffset.generatedLine===u.generatedLine?i.generatedOffset.generatedColumn-1:0),originalLine:u.originalLine,originalColumn:u.originalColumn,name:c};this.__generatedMappings.push(p),"number"==typeof p.originalLine&&this.__originalMappings.push(p)}o(this.__generatedMappings,r.compareByGeneratedPositionsDeflated),o(this.__originalMappings,r.compareByOriginalPositions)},n.IndexedSourceMapConsumer=p},{"./array-set":46,"./base64-vlq":47,"./binary-search":49,"./quick-sort":51,"./util":55}],53:[function(e,t,n){var r=e("./base64-vlq"),i=e("./util"),a=e("./array-set").ArraySet,s=e("./mapping-list").MappingList;function o(e){e||(e={}),this._file=i.getArg(e,"file",null),this._sourceRoot=i.getArg(e,"sourceRoot",null),this._skipValidation=i.getArg(e,"skipValidation",!1),this._sources=new a,this._names=new a,this._mappings=new s,this._sourcesContents=null}o.prototype._version=3,o.fromSourceMap=function(e){var t=e.sourceRoot,n=new o({file:e.file,sourceRoot:t});return e.eachMapping(function(e){var r={generated:{line:e.generatedLine,column:e.generatedColumn}};null!=e.source&&(r.source=e.source,null!=t&&(r.source=i.relative(t,r.source)),r.original={line:e.originalLine,column:e.originalColumn},null!=e.name&&(r.name=e.name)),n.addMapping(r)}),e.sources.forEach(function(r){var a=r;null!==t&&(a=i.relative(t,r)),n._sources.has(a)||n._sources.add(a);var s=e.sourceContentFor(r);null!=s&&n.setSourceContent(r,s)}),n},o.prototype.addMapping=function(e){var t=i.getArg(e,"generated"),n=i.getArg(e,"original",null),r=i.getArg(e,"source",null),a=i.getArg(e,"name",null);this._skipValidation||this._validateMapping(t,n,r,a),null!=r&&(r=String(r),this._sources.has(r)||this._sources.add(r)),null!=a&&(a=String(a),this._names.has(a)||this._names.add(a)),this._mappings.add({generatedLine:t.line,generatedColumn:t.column,originalLine:null!=n&&n.line,originalColumn:null!=n&&n.column,source:r,name:a})},o.prototype.setSourceContent=function(e,t){var n=e;null!=this._sourceRoot&&(n=i.relative(this._sourceRoot,n)),null!=t?(this._sourcesContents||(this._sourcesContents=Object.create(null)),this._sourcesContents[i.toSetString(n)]=t):this._sourcesContents&&(delete this._sourcesContents[i.toSetString(n)],0===Object.keys(this._sourcesContents).length&&(this._sourcesContents=null))},o.prototype.applySourceMap=function(e,t,n){var r=t;if(null==t){if(null==e.file)throw new Error('SourceMapGenerator.prototype.applySourceMap requires either an explicit source file, or the source map\'s "file" property. Both were omitted.');r=e.file}var s=this._sourceRoot;null!=s&&(r=i.relative(s,r));var o=new a,u=new a;this._mappings.unsortedForEach(function(t){if(t.source===r&&null!=t.originalLine){var a=e.originalPositionFor({line:t.originalLine,column:t.originalColumn});null!=a.source&&(t.source=a.source,null!=n&&(t.source=i.join(n,t.source)),null!=s&&(t.source=i.relative(s,t.source)),t.originalLine=a.line,t.originalColumn=a.column,null!=a.name&&(t.name=a.name))}var l=t.source;null==l||o.has(l)||o.add(l);var c=t.name;null==c||u.has(c)||u.add(c)},this),this._sources=o,this._names=u,e.sources.forEach(function(t){var r=e.sourceContentFor(t);null!=r&&(null!=n&&(t=i.join(n,t)),null!=s&&(t=i.relative(s,t)),this.setSourceContent(t,r))},this)},o.prototype._validateMapping=function(e,t,n,r){if(t&&"number"!=typeof t.line&&"number"!=typeof t.column)throw new Error("original.line and original.column are not numbers -- you probably meant to omit the original mapping entirely and only map the generated position. 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