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原文链接：https://gist.github.com/lattner/31ed37682ef1576b16bca1432ea9f782

Swift 并发宣言

作者: Chris Lattner

内容

• 介绍
• 总的愿景

lattner

Swift Concurrency Manifesto

Author: Chris Lattner

Chinese Translation by Jason Yu

Contents

• Introduction
• Overall Vision

lattner

Async/Await for Swift

• Proposal: SE-XXXX
• Authors: Chris Lattner, Joe Groff

Introduction

Modern Cocoa development involves a lot of asynchronous programming using closures and completion handlers, but these APIs are hard to use. This gets particularly problematic when many asynchronous operations are used, error handling is required, or control flow between asynchronous calls gets complicated. This proposal describes a language extension to make this a lot more natural and less error prone.

This paper introduces a first class Coroutine model to Swift. Functions can opt into to being async, allowing the programmer to compose complex logic involving asynchronous operations, leaving the compiler in charge of producing the necessary closures and state machines to implement that logic.

Arthraim

/**
 *  Width of hairline (1px on real device screen)
 *  The dppx of screens can be found here http://dpi.lv/
 *
 *  @return CGFloat number to be set for "1px"
 */
+ (CGFloat)hairLineWidth {
    if ([UIScreen mainScreen].bounds.size.width == 414.f) { // Plus
        return 1.f / 2.46f; // 2.46 is the dppx of plus screens
    } else {

wong2

#-*-coding:utf-8-*-

import hashlib
import hmac
import time
import requests

HMAC_KEY = '5tT!TQkf5fYbabw5?KL2659XgL^JgxWw8r9Y+bAvGwP-QfteQL'

class TanTan(object):

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Videos

• Introduction to Functional Programming Johannes Weiß - https://vimeo.com/100786088
• ReactiveCocoa at MobiDevDay Andrew Sardone - https://vimeo.com/65637501
• The Future Of ReactiveCocoa Justin Spahr-Summers - https://www.youtube.com/watch?v=ICNjRS2X8WM
• Enemy of the State Justin Spahr-Summers - https://www.youtube.com/watch?v=7AqXBuJOJkY
• WWDC 2014 Session 229 - Advanced iOS Application Architecture and Patterns Andy Matuschak - https://developer.apple.com/videos/play/wwdc2014/229/
• Functioning as a Functionalist Andy Matuschak - https://www.youtube.com/watch?v=rJosPrqBqrA
• Controlling Complexity in Swift Andy Matuschak - https://realm.io/news/andy-matuschak-controlling-complexity/