tkersey

New Build System Tricks

Command Line

# enable internal menu
defaults write com.apple.dt.Xcode ShowDVTDebugMenu -bool YES

alias xcbuild=$(xcode-select -p)/../SharedFrameworks/XCBuild.framework/Versions/A/Support/xcbuild

patrickt

enum Either<A, B> {
    case Left(A)
    case Right(B)
}

func isLeft<A,B>(it : Either<A,B>) -> Bool {
    switch it { case .Left: return true; case .Right: return false }
}

func isRight<A,B>(it : Either<A,B>) -> Bool {

nicklockwood

Singleton.h
-------------

@protocol Singleton
@optional

+ (instancetype)sharedInstance;

@end

jacksonh

// http://stackoverflow.com/a/19277383
//
- (void)textViewDidChange:(UITextView *)textView
{
    CGRect line = [textView caretRectForPosition:textView.selectedTextRange.start];
    CGFloat overflow = line.origin.y + line.size.height
		- ( textView.contentOffset.y + textView.bounds.size.height
		- textView.contentInset.bottom - textView.contentInset.top );
    if (overflow > 0) {
        // We are at the bottom of the visible text and introduced a line feed, scroll down (iOS 7 does not do it)

kyleve

/**
 Provides the ability to verify key paths at compile time.
 
 If "keyPath" does not exist, a compile-time error will be generated.
 
 Example:
    // Verifies "isFinished" exists on "operation".
    NSString *key = SQKeyPath(operation, isFinished);
 
    // Verifies "isFinished" exists on self.

shepting

//
//  YMKeyboardLayoutHelperView.m
//  ios-chat
//
//  Created by Steven Hepting on 7/17/13.
//  Copyright (c) 2013 Yammer. All rights reserved.
//

#import "YMKeyboardLayoutHelperView.h"
#import "UIView+LayoutAdditions.h"

alloy

#import "KWMatcher.h"

typedef BOOL (^FTKiwiCustomMatcherBlock)(id subject);

@interface FTKiwiCustomBlockMatcher : KWMatcher

// Your custom matcher block will receive the expectation ‘subject’ and must
// return `YES` if the expaction passes or `NO` if it fails.
- (void)be:(FTKiwiCustomMatcherBlock)block;

ZevEisenberg

function fixXcode
{
    pushd > /dev/null

    cd
    xcodepath=`xcode-select --print-path`/..
    destination=$xcodepath/Frameworks/IDEKit.framework/Versions/A/Resources/SystemCodeSnippets.codesnippets

    shouldRelaunchXcode=false
    if [[ `osascript -e 'tell app "System Events" to count processes whose name is "Xcode"'` == 1 ]]; then

mattt

Generate the list yourself:

$ cd /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS*.sdk/System/Library/Frameworks/UIKit.framework/Headers
$ grep UI_APPEARANCE_SELECTOR ./*     | \
  sed 's/NS_AVAILABLE_IOS(.*)//g'     | \
  sed 's/NS_DEPRECATED_IOS(.*)//g'    | \
  sed 's/API_AVAILABLE(.*)//g'        | \
  sed 's/API_UNAVAILABLE(.*)//g'      | \
 sed 's/UI_APPEARANCE_SELECTOR//g' | \

calebhearth

Useful Vim mappings

...you didn't know you wanted

Convert Ruby 1.8 to 1.9 hash syntax

nnoremap <Leader>: :%s/:\([^ ]*\)\(\s*\)=>/\1:/gc<CR>