inamiy

for i in 0..<5 {
    let startTime: CFAbsoluteTime = CFAbsoluteTimeGetCurrent();
    
    for _ in 0..<100 {
        let task = Task<Float, String, NSError> { p, f, r, c in }
        //let signal = Signal<Int>.never()
    }
    
    let elapsedTime: CFAbsoluteTime = CFAbsoluteTimeGetCurrent() - startTime;
    

inamiy

- (void)testExample {
    
    MyObject* obj = [[MyObject alloc] init];
    obj.array = @[];
    
    NSMutableArray* array = [obj mutableArrayValueForKey:@"array"];
    // NSMutableArray* array = @[].mutableCopy;    // using this will pass test
    
    __weak NSMutableArray* weakArray = array;
    

inamiy

root@7093981bc8fc:~/PackageTest# swift build
Compiling Swift Module 'SwiftState' (14 sources)
swift: /home/buildslave/jenkins/workspace/oss-swift-linux-packages-ubuntu_14_04-one-off-build/swift/lib/SILPasses/IPO/CapturePromotion.cpp:831: swift::SILFunction *constructClonedFunction(swift::PartialApplyInst *, swift::FunctionRefInst *, IndicesSet &): Assertion `!genericSig && "Function type has Unexpected generic signature!"' failed.
0  swift           0x0000000002f15268 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 40
1  swift           0x0000000002f13a36 llvm::sys::RunSignalHandlers() + 54
2  swift           0x0000000002f15d9a
3  libpthread.so.0 0x00007f1e39e14340
4  libc.so.6       0x00007f1e3903ccc9 gsignal + 57
5  libc.so.6       0x00007f1e390400d8 abort + 328
6  libc.so.6       0x00007f1e39035b86

inamiy

extension String 
{
    // https://en.wikipedia.org/wiki/Boyer%E2%80%93Moore%E2%80%93Horspool_algorithm
    // http://www.cin.br/~paguso/courses/if767/bib/Horspool_1980.pdf
    public func indexOf_horspool(pattern: String) -> String.Index?
    {
        let patternLength = pattern.characters.count
        assert(patternLength > 0)
        assert(patternLength <= self.characters.count)

inamiy

Not working Working

inamiy

Reactive State Machine | iOSDC Japan 2016

2016/08/20 13:00 Track A Speaker: 稲見 泰宏 (@inamiy)

概要

ここ1, 2年のSwiftの登場とFunctional Reactive Programming (FRP)の普及によって、iOSアプリ開発の現場では劇的なパラダイムシフトが起きています。しかし一方で、副作用を伴うアプリの状態管理に苦労する点が未だ多くあり、バグの温床となっています。このプレゼンでは、状態管理の基礎理論であるオートマトン（ステートマシン）を基に、Reduxなどのフレームワークとの対比も交えながら、FRPでの効率的な設計手法について探ります。

スライド (日本語)

inamiy

// # Bug description
// `@discardableResult` won't work when:
// 1. optional chaining
// 2. function returns Optional + non-Void value
//
// ## See also
// - https://bugs.swift.org/browse/SR-1052
// - https://bugs.swift.org/browse/SR-1681
// - https://bugs.swift.org/browse/SR-1929

inamiy

diff --git Tests/ReactiveSwiftTests/SignalProducerSpec.swift Tests/ReactiveSwiftTests/SignalProducerSpec.swift
index 21362e7..a363327 100644
--- Tests/ReactiveSwiftTests/SignalProducerSpec.swift
+++ Tests/ReactiveSwiftTests/SignalProducerSpec.swift
@@ -1413,13 +1413,14 @@ class SignalProducerSpec: QuickSpec {
 				}
 			}
 
-			describe("disposal") {
+			fdescribe("disposal") {

inamiy

React & Elm inspired frameworks in Swift

This is a curated list of iOS (Swift & ObjC) frameworks which are inspired by React and Elm.

Swift frameworks

React-inspired

• ReactSwift by @ColinEberhardt
• https://github.com/ColinEberhardt/ReactSwift

inamiy

func test<T>(_ f: (T) -> Void) {}

let intF: (Int) -> Void = { _ in }
let voidF: () -> Void = { }

test(intF)  // works
//test(voidF) // error: cannot convert value of type '() -> Void' to expected argument type '(_) -> Void'

//: # Workaround for zero-argument func to be passed into `test`