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@oleganza
oleganza / async_swift_proposal.md
Last active Jun 21, 2022
Concrete proposal for async semantics in Swift
View async_swift_proposal.md

Async semantics proposal for Swift

Modern Cocoa development involves a lot of asynchronous programming using blocks and NSOperations. A lot of APIs are exposing blocks and they are more natural to write a lot of logic, so we'll only focus on block-based APIs.

Block-based APIs are hard to use when number of operations grows and dependencies between them become more complicated. In this paper I introduce asynchronous semantics and Promise type to Swift language (borrowing ideas from design of throw-try-catch and optionals). Functions can opt-in to become async, programmer can compose complex logic involving asynchronous operations while compiler produces necessary closures to implement that logic. This proposal does not propose new runtime model, nor "actors" or "coroutines".

Table of contents

@steipete
steipete / KeyCommand.swift
Last active May 24, 2022
Add Keyboard Shortcuts to SwiftUI on iOS 13 when using `UIHostingController`. Requires using KeyboardEnabledHostingController as hosting class) See https://steipete.com/posts/fixing-keyboardshortcut-in-swiftui/
View KeyCommand.swift
//
// KeyCommand.swift
// Adds Keyboard Shortcuts to SwiftUI on iOS 13
// See https://steipete.com/posts/fixing-keyboardshortcut-in-swiftui/
// License: MIT
//
// Usage: (wrap view in `KeyboardEnabledHostingController`)
// Button(action: {
// print("Button Tapped!!")
// }) {
@kirpit
kirpit / bash.py
Last active May 17, 2022
Enables to run subprocess commands in a different thread with TIMEOUT option!
View bash.py
#! /usr/bin/env python
import threading
import subprocess
import traceback
import shlex
class Command(object):
"""
Enables to run subprocess commands in a different thread with TIMEOUT option.
@rodneyrehm
rodneyrehm / gist:40e7946c0cff68a31cea
Last active May 14, 2022
Diagrams for Documentation
View gist:40e7946c0cff68a31cea

some tools for diagrams in software documentation

Diagrams For Documentation

Obvious Choices

ASCII

@lattner
lattner / async_swift_proposal.md
Last active May 10, 2022 — forked from oleganza/async_swift_proposal.md
Concrete proposal for async semantics in Swift
View async_swift_proposal.md

Async/Await for Swift

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.

@s-aska
s-aska / Keychain.swift
Last active May 4, 2022
Swift Keychain class ( supported Xcode 6.0.1 )
View Keychain.swift
import UIKit
import Security
class Keychain {
class func save(key: String, data: NSData) -> Bool {
let query = [
kSecClass as String : kSecClassGenericPassword as String,
kSecAttrAccount as String : key,
kSecValueData as String : data ]
@Daniel-ltw
Daniel-ltw / from.yaml
Last active May 3, 2022
Github Actions repository_dispatch example
View from.yaml
name: Build Artifacts
on: [push]
jobs:
build:
runs-on: ubuntu-latest
steps:
View boilerplate.swift
// Run any SwiftUI view as a Mac app.
import Cocoa
import SwiftUI
NSApplication.shared.run {
VStack {
Text("Hello, World")
.padding()
.background(Capsule().fill(Color.blue))
@smileyborg
smileyborg / InteractiveTransitionCollectionViewDeselection.m
Last active Feb 6, 2022
Animate table & collection view deselection alongside interactive transition (for iOS 11 and later)
View InteractiveTransitionCollectionViewDeselection.m
// UICollectionView Objective-C example
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
NSIndexPath *selectedIndexPath = [[self.collectionView indexPathsForSelectedItems] firstObject];
if (selectedIndexPath != nil) {
id<UIViewControllerTransitionCoordinator> coordinator = self.transitionCoordinator;
if (coordinator != nil) {
[coordinator animateAlongsideTransition:^(id<UIViewControllerTransitionCoordinatorContext> context) {
@johanneswuerbach
johanneswuerbach / .travis.yml
Last active Feb 3, 2022
Deploy an iOS app to testflight using Travis CI
View .travis.yml
---
language: objective-c
before_script:
- ./scripts/travis/add-key.sh
after_script:
- ./scripts/travis/remove-key.sh
after_success:
- ./scripts/travis/testflight.sh
env:
global: