Matthew Purland mpurland
mpurland
/ SwiftCompilerInfiniteLoopTest.swift
Last active
December 28, 2015 00:19
Example to cause the Swift compiler to go into an infinite loop
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| import Foundation | |
| typealias Mask = UInt64 | |
| enum Category: UInt8 { | |
| case A | |
| case B | |
| case C | |
| case D | |
| case E |
mpurland
/ OptionalEquatable.swift
Created
November 13, 2015 00:23
Swift classes extending NSObject overriding ==
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| // The following shows that Equatable for NSObject is not necessarily safe | |
| // for Swift classes that extend NSObject and override Equatable. | |
| // Reference: http://natashatherobot.com/swift-equatable-with-optionals/ | |
| class TitleNSObject: NSObject { | |
| var title: String = "" | |
| init(title: String) { | |
| super.init() | |
| self.title = title |
mpurland
/ objcpropertychangemacro.m
Last active
August 29, 2015 14:13
Objective-C property change macro for better KVO using willChangeValueForKey/didChangeValueForKey
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| // Note: This requires libextobjc: https://github.com/jspahrsummers/libextobjc | |
| inline static void propertyChangeObject(NSObject *object, NSString *keypath, void (^block)()) { | |
| [object willChangeValueForKey: keypath]; | |
| block(); | |
| [object didChangeValueForKey: keypath]; | |
| } | |
| #define propertyChange(__KEY, block) propertyChangeObject(self, @keypath(self.__KEY), block) | |
| #define propertyChange2(keypath, block) propertyChangeObject(self, keypath, block) |
mpurland
/ gist:c704e67f9ceb2e00260b
Created
November 13, 2014 07:41
Swift: Generic method for enumerating all values of an enum of type Int
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| enum Reindeer: Int { | |
| case Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner, Blitzen, Rudolph | |
| static var allValues: [Reindeer] { | |
| return allValuesGenerator({ Reindeer(rawValue: $0) }) | |
| } | |
| } | |
| func allValuesGenerator<T>(fromValue: Int -> T?) -> [T] { | |
| return Array( |
mpurland
/ contents.xcplayground
Created
June 12, 2014 20:21
Swift playground multiple files or renamed files
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| <?xml version="1.0" encoding="UTF-8" standalone="yes"?> | |
| <playground version='3.0' sdk='macosx'> | |
| <sections> | |
| <code source-file-name='section-1.swift'/> | |
| <code source-file-name='section-2.swift'/> | |
| <code source-file-name='custom-filename.swift'/> | |
| </sections> | |
| <timeline fileName='timeline.xctimeline'/> | |
| </playground> |