parrots

@import WatchKit;

@interface CachingInterfaceController : WKInterfaceController

- (void)updateLabel:(WKInterfaceLabel *)label withString:(NSString *)string;
- (void)updateLabel:(WKInterfaceLabel *)label asHidden:(BOOL)hidden;
- (void)updateImage:(WKInterfaceImage *)image withImageNamed:(NSString *)imageName;
- (void)updateImage:(WKInterfaceImage *)image withBaseNameForAnimation:(NSString *)baseName withRange:(NSRange)range duration:(NSTimeInterval)duration repeatCount:(NSInteger)repeatCount;
- (NSString *)currentImageNameForImage:(WKInterfaceImage *)image;

ashchan

import UIKit

// How to use
//    Drag an UIView to storyboard, set constraints. 
//    Set the height constraint priority to less than 1000.
//    The view will override that to half pixel.
class HairlineView: UIView {
    override init(frame: CGRect) {
        super.init(frame: frame)
    }

chriseidhof

import Cocoa

struct Person {
    var name: String = "John"
    var age: Int = 50
    var dutch: Bool = false
    var address: Address? = Address(street: "Market St.")
}

struct Address {

dorentus

//
//  JSON.swift
//
//
//  Created by ZHANG Yi on 2015-9-1.
//
//  The MIT License (MIT)
//
//  Copyright (c) 2015 ZHANG Yi <[email protected]>
//

plumhead

extension String {
    func size(withAttributes attrs: [String:AnyObject], constrainedTo box: NSSize) -> NSRect {
        let storage = NSTextStorage(string: self)
        let container = NSTextContainer(containerSize: NSSize(width: box.width, height: box.height))
        let layout = NSLayoutManager()
        layout.addTextContainer(container)
        storage.addLayoutManager(layout)
        storage.addAttributes(attrs, range: NSMakeRange(0, storage.length))
        container.lineFragmentPadding = 0.0
        let _ = layout.glyphRangeForTextContainer(container)

ngs

internal let DEFAULT_MIME_TYPE = "application/octet-stream"

internal let mimeTypes = [
    "html": "text/html",
    "htm": "text/html",
    "shtml": "text/html",
    "css": "text/css",
    "xml": "text/xml",
    "gif": "image/gif",
    "jpeg": "image/jpeg",

preble

import Cocoa

@objc
class SomeTextStorage: NSTextStorage {
    
    private var storage: NSMutableAttributedString
    
    override init() {
        storage = NSMutableAttributedString(string: "", attributes: nil)
        super.init()

rnapier

// I'm exploring replacing subclassing with protocols and extensions. This is super-simple with a subclass,
// but I always like to explore protocol options when I can.

typealias ObserverRemover = () -> Void

protocol Notifier: class {
    typealias T
    var observers: [NSUUID: (T -> Void)] { get set } // This is an implementation detail that I don't want to be public.
    var value: T { get set }
}

zonble

import Foundation
import AudioToolbox

class KKSimplePlayer: NSObject {
	var URL: NSURL
	var URLSession: NSURLSession!
	var packets = [NSData]()
	var audioFileStreamID: AudioFileStreamID = nil
	var outputQueue: AudioQueueRef = nil
	var streamDescription: AudioStreamBasicDescription?

andymatuschak

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,