Author: Chris Lattner
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//: [Previous](@previous) | |
import Foundation | |
struct AnyEquatable { | |
private let isEqualTo: (Any) -> Bool | |
let value: Any | |
init<A: Equatable>(_ value: A) { | |
self.value = value |
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#!/usr/bin/env bash | |
<% for type in types.classes { -%> | |
<%_ if type.attributes["final"] != nil || type.attributes["open"] != nil || types.based[type.name]?.isEmpty == false { continue } -%> | |
<%_ _%>git grep -lz 'class <%= type.name %>' | xargs -0 perl -i'' -pE "s/class <%= type.name %>(?=\s|:)/final class <%= type.name %>/g" | |
<% } %> |
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#!/bin/bash | |
# Exit the script immediately on error | |
set -e | |
# We'll work in /tmp | |
cd /tmp | |
# Clone mach_override unless we already have it | |
if [ ! -d ~/mach_override ]; then |
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// Either put this in a separate file that you only include in your macOS target | |
// or wrap the code in #if os(macOS) / #endif | |
import Cocoa | |
// Step 1: Typealias UIImage to NSImage | |
typealias UIImage = NSImage | |
// Step 2: You might want to add these APIs that UIImage has but NSImage doesn't. | |
extension NSImage { |
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import Foundation | |
extension String { | |
func hyphenated(languageCode: String) -> String { | |
let locale = Locale(identifier: languageCode) | |
return self.hyphenated(locale: locale) | |
} | |
func hyphenated(locale: Locale) -> String { |
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// | |
// Copyright © 2017 Tony Arnold. All rights reserved. | |
enum CompoundValue<Element: Hashable> { | |
case distinct(Element) | |
case indistinct(Set<Element>) | |
case empty | |
var distinctValue: Element? { | |
switch self { |
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import Foundation | |
// A lens is a getter and a setter combined | |
struct Lens<Whole, Part> { | |
let get: (Whole) -> Part | |
let set: (inout Whole, Part) -> () | |
} | |
// We can create a lens from a key path | |
extension Lens { |
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@import Foundation; | |
@import CoreGraphics; | |
typedef struct __attribute__((objc_boxable)) CGPoint CGPoint; | |
typedef struct __attribute__((objc_boxable)) CGSize CGSize; | |
typedef struct __attribute__((objc_boxable)) CGRect CGRect; | |
typedef struct __attribute__((objc_boxable)) CGVector CGVector; | |
int main(int argc, const char * argv[]) { | |
@autoreleasepool { |
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import Foundation | |
struct HashingSingleValueEncodingContainer : SingleValueEncodingContainer { | |
var owner: HashingEncoder | |
mutating func combineHash<T>(of element: T?) where T: Hashable { | |
if let elt = element { | |
owner.combine(elt, hash: elt.hashValue) { (other: Any) -> Bool in | |
if let otherValue = other as? T { | |
return elt == otherValue |