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@Alex-Ozun
Alex-Ozun / typestate-tesla-car.swift
Last active January 26, 2026 18:57
Typestate in Swift
enum Parked {}
enum Driving {}
enum Gaming {}
private class EngineSystem {
static var shared = EngineSystem()
private init() {}
func start() {/**/}
func accelerate() { /* Uses gas pedal input to accelerate the real car */ }
@jjrscott
jjrscott / BidirectionalCollection+RegularExpressions.swift
Last active October 16, 2024 15:08
Reimplementation of Brian Kernighan's Regular Expression Matcher on BidirectionalCollection
//
// RegularExpression.swift
// RegularExpressions
//
// Created by John Scott on 15/07/2020.
//
// Original matching implementation Brian Kernighan : https://www.cs.princeton.edu/courses/archive/spr09/cos333/beautiful.html
// Swift port Ben Cohen : https://github.com/apple/swift/blob/a9eee38e109e3d99f103a9bee71bed4422fbb6fd/benchmark/single-source/StringMatch.swift
import Foundation
@rxwei
rxwei / upstreaming-swift-autodiff.md
Last active January 28, 2020 11:06
Upstreaming Swift AutoDiff

Upstreaming Swift AutoDiff

Author: Richard Wei (rxwei@google.com) on behalf of the Swift for TensorFlow team

Last updated: October 2, 2019

Overview

The differentiable programming feature (AutoDiff) has been incubated in the 'tensorflow' branch of apple/swift since December 2017 and released as part of the Swift for TensorFlow toolchains. The Differentiable Programming Mega-Proposal, which serves as a manifesto, received general positive feedback from the community, but there is a long way between receiving conceptual approval and obtaining Swift Evolution approval of such a large feature. We would like to merge the pieces into the 'master' branch under a gate to further development and bake the feature on master, just like Apple develops its major features

@reckenrode
reckenrode / json.swift
Created June 23, 2017 14:25
Decoding arbitrary JSON with the new Decoder in Swift 4
enum JSON: Decodable {
case bool(Bool)
case double(Double)
case string(String)
indirect case array([JSON])
indirect case dictionary([String: JSON])
init(from decoder: Decoder) throws {
if let container = try? decoder.container(keyedBy: JSONCodingKeys.self) {
self = JSON(from: container)
@joshbuchea
joshbuchea / semantic-commit-messages.md
Last active January 29, 2026 16:25
Semantic Commit Messages

Semantic Commit Messages

See how a minor change to your commit message style can make you a better programmer.

Format: <type>(<scope>): <subject>

<scope> is optional

Example

@Gankra
Gankra / OwnershipTLDR.md
Last active April 3, 2019 22:44
Swift Ownership Manifesto TL;DR

Swift Ownership Manifesto TL;DR

Most of the manifesto is background and detailed definitions -- if you're confused or want details, read the manifesto!

https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170213/032155.html

Note also that manifestos aren't complete proposals -- syntax and details may change!

One piece of background: inout is kinda complicated because it can be used on computed properties -- foo(&val.x) might be sugar for

@anandabits
anandabits / ValueSubtypeManifesto.md
Last active March 30, 2023 14:58

Value Subtypes and Generalized Enums, a manifesto

The goal of this document is to provide a comprehensive view of what value subtyping might look like in Swift and demonstrate how generalized enums play a significant role in this future.

Note: All syntax used in this document that is not currently valid Swift syntax is only intended to serve the purpose of demonstrating ideas and to serve as a point of reference for future proposals. The intent is not to propose that this exact syntax be used.

Acknowledgement: some of the ideas in this document have been inspired by Niko Matsakis' blog post exploring similar ideas in the context of Rust: http://smallcultfollowing.com/babysteps/blog/2015/08/20/virtual-structs-part-3-bringing-enums-and-structs-together/

Definition

@tomduckering
tomduckering / ValueTransformer.swift
Last active October 25, 2018 23:49 — forked from gonzalezreal/ValueTransformer.swift
Type safe NSValueTransformer
import Foundation
private class BasicValueTransformer: ValueTransformer {
let transform: (AnyObject?) -> (AnyObject?)
init(transform: @escaping (AnyObject?) -> (AnyObject?)) {
self.transform = transform
}
// MARK: NSValueTransformer
@santisbon
santisbon / Update-branch.md
Last active November 26, 2025 06:53
Deploying from Git branches adds flexibility. Bring your feature branch up to date with master and deploy it to make sure everything works. If everything looks good the branch can be merged. Otherwise, you can deploy your master branch to return production to its stable state.

Updating a feature branch

First we'll update your local master branch. Go to your local project and check out the branch you want to merge into (your local master branch)

$ git checkout master

Fetch the remote, bringing the branches and their commits from the remote repository. You can use the -p, --prune option to delete any remote-tracking references that no longer exist in the remote. Commits to master will be stored in a local branch, remotes/origin/master.




  


  




    


          
    

      

        
        

          

              @erica
          

          

            
                erica
                / with.swift
            
            

              Created
              May 25, 2016 17:16
            

          

        

      

        

  

    
    


        



  


  

        

          
          // @discardableResult to be added
        

        

          
          // @noescape needs to move to type annotation
        

        

          
          // needs to add _ for item
        

        

          
          public func with<T>(item: T, @noescape update: (inout T) throws -> Void) rethrows -> T {
        

        

          
              var this = item; try update(&this); return this
        

        

          
          }