mayoff

The attached lldb command pblock command lets you peek inside an Objective-C block. It tries to tell you where to find the source code for the block, and the values captured by the block when it was created.

Consider this example program:

#import <Foundation/Foundation.h>

@interface Foo: NSObject
@end

@implementation Foo

DougGregor

import Darwin

@dynamicMemberLookup
struct Environment {
  subscript(dynamicMember name: String) -> String? {
    get {
      guard let value = getenv(name) else { return nil }

      return String(validatingUTF8: value)
    }

jessesquires

git config --global alias.trim '!f() { git branch | grep -v "\*" | xargs -n 1 git branch -D; }; f'

krzysztofzablocki

#!/usr/bin/env bash
<% for type in types.classes { -%>
  <%_ if type.attributes["final"] != nil || type.attributes["open"] != nil || types.based[type.name]?.isEmpty == false { continue } -%>
<%_ _%>git grep -lz 'class <%= type.name %>' | xargs -0 perl -i'' -pE "s/class <%= type.name %>(?=\s|:)/final class <%= type.name %>/g"
<% } %>

smileyborg

// 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) {

luismachado

//
//  FadeScrollView.swift
//
//  Created by Luís Machado on 23/06/2017.
//  Copyright © 2017 Luis Machado. All rights reserved.
//

import UIKit

class FadeScrollView: UIScrollView, UIScrollViewDelegate {

mayoff

@import Foundation;
@import CoreGraphics;

typedef struct __attribute__((objc_boxable)) CGPoint CGPoint;
typedef struct __attribute__((objc_boxable)) CGSize CGSize;
typedef struct __attribute__((objc_boxable)) CGRect CGRect;
typedef struct __attribute__((objc_boxable)) CGVector CGVector;

int main(int argc, const char * argv[]) {
    @autoreleasepool {

steipete

// Similar to defer in Swift
#define pspdf_defer_block_name_with_prefix(prefix, suffix) prefix ## suffix
#define pspdf_defer_block_name(suffix) pspdf_defer_block_name_with_prefix(pspdf_defer_, suffix)
#define pspdf_defer __strong void(^pspdf_defer_block_name(__LINE__))(void) __attribute__((cleanup(pspdf_defer_cleanup_block), unused)) = ^
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wunused-function"
static void pspdf_defer_cleanup_block(__strong void(^*block)(void)) {
    (*block)();
}
#pragma clang diagnostic pop

tomkowz

import Foundation

class AsyncBlockOperation: NSOperation {
    typealias Block = (Void -> Void) -> Void

    private let block: Block
    private var _executing = false
    private var _finished = false
    
    init(block: Block) {

marinbenc

import Foundation

/// Protocols confoming to this protocol will have a mock generated for them.
protocol AutoMockable {}

protocol DataServiceProtocol: AutoMockable {
    
    func fullUrl(forPath path: String)-> String
    func fetchResource(fromURL url: URL, onComplete: (Result)-> Void)