kazmasaurus

#!/bin/bash
# Assumes you're in the directory with the `.xcodeproj`
killall Xcode
xcrun -k
xcodebuild -alltargets clean
rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang/ModuleCache"
rm -rf "$(getconf DARWIN_USER_CACHE_DIR)/org.llvm.clang.$(whoami)/ModuleCache"
rm -rf ~/Library/Developer/Xcode/DerivedData/*
rm -rf ~/Library/Caches/com.apple.dt.Xcode/*
rm -rf *.xcodeproj/xcuserdata/

kazmasaurus

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

import Cocoa

protocol Feed {
	var url: String {get}
}

protocol Folder {
	typealias FeedType

kazmasaurus

func foo(completion: ((String) -> Void)?) {
    completion?("Heyo!!")
}

foo { println($0) }     // prints "Heyo"
foo(nil)                // doesn't crash

kazmasaurus

@interface ClassWithLazyProperty ()
@property (nonatomic) LazyPropertyType *lazyProperty;
@end

@implementation ClassWithLazyProperty
- (LazyPropertyType *)lazyProperty
{
    return _lazyProperty ?: (_lazyProperty = ({
        LazyPropertyType *property = [LazyPropertyType new];
        // setup property