gdavis

Xcode VIM

Learning VIM in Xcode comes with its own set of challenges and limitations, but there is enough there for you to give your mousing hand a break and master the keyboard.

A limited set of commands are available in Xcode, and this document attempts help ease the learning curve of using VIM in Xcode by providing a handy reference as well as what I find works for me in practice.

NOTE: Commands are case-sensitive. A command of N means pressing shift + n on the keyboard.

This document is a work in progress! Leave a comment if you would like to see a change.

nalexn

// Copyright © 2019 Alexey Naumov. MIT License

import Combine

typealias CancelBag = Set<AnyCancellable>

extension CancelBag {
    mutating func collect(@Builder _ cancellables: () -> [AnyCancellable]) {
        formUnion(cancellables())
    }

Winchariot

lazy var accessoryToolbarWithDoneButton: UIToolbar = {

    let toolbar = UIToolbar(frame: CGRect.zero)
    //only needs to be flexible in the dimension(s) you want it to be
    //https://stackoverflow.com/questions/31822504/how-can-i-increase-the-height-of-an-inputaccessoryview
    toolbar.autoresizingMask = [.flexibleWidth, .flexibleHeight] 
    
    let leftSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
    let doneButton = UIBarButtonItem(barButtonSystemItem: .done, target: self, action: #selector(keyboardDoneButtonTapped(_:)))
    toolbar.items = [leftSpace, doneButton]

emarashliev

struct FailableDecodable<Base: Decodable>: Decodable {
    var base: Base?

    init(from decoder: Decoder) throws {
        let container = try decoder.singleValueContainer()
        do {
            base = try container.decode(Base.self)
        } catch let error {
            print(error)
        }

krin-san

typedef CF_ENUM(int, CFNetworkErrors) {

  kCFHostErrorHostNotFound = 1,
  kCFHostErrorUnknown = 2, // Query the kCFGetAddrInfoFailureKey to get the value returned from getaddrinfo; lookup in netdb.h
  // SOCKS errors; in all cases you may query kCFSOCKSStatusCodeKey to recover the status code returned by the server
  kCFSOCKSErrorUnknownClientVersion = 100,
  kCFSOCKSErrorUnsupportedServerVersion = 101, // Query the kCFSOCKSVersionKey to find the version requested by the server
  // SOCKS4-specific errors
  kCFSOCKS4ErrorRequestFailed = 110,  // request rejected or failed by the server
  kCFSOCKS4ErrorIdentdFailed = 111,  // request rejected because SOCKS server cannot connect to identd on the client

vukcevich

//: Playground - noun: a place where people can play

import UIKit

var str = "Anonymous Class in Swift"

//https://stackoverflow.com/questions/24408068/anonymous-class-in-swift
//There is no equivalent syntax.
//Regarding equivalent techniques, theoretically you could use closures and define structs and classes inside them.

magicien

import Foundation
import SceneKit

let json = """
{
    "position": [2.0, 5.0, 3.0],
    "rotation": [0.0, 0.73, 0.0, 0.73]
}
""".data(using: .utf8)!

lattner

Swift Concurrency Manifesto

Author: Chris Lattner

Chinese Translation by Jason Yu

Contents

• Introduction
• Overall Vision

mcmurrym

public extension CustomDebugStringConvertible {
    var debugDescription: String {
        return debugDescription()
    }
    
    func debugDescription(_ indentationLevel: Int = 0, includeType: Bool = true) -> String {
        
        let indentString = (0..<indentationLevel).reduce("") { tabs, _ in tabs + "\t" }
        
        var s: String

remojansen

function logClass(target: any) {
 
  // save a reference to the original constructor
  var original = target;
 
  // a utility function to generate instances of a class
  function construct(constructor, args) {
    var c : any = function () {
      return constructor.apply(this, args);
    }