rnapier

// Creating a generic recursive data structure with autoclosure. (READ ALL NOTES; THIS MAY NOT DO WHAT YOU WANT.)
// Closures are reference types, so the size is known (? I think ?)
// Note that this is just because of unimplemented features in the compiler in Beta5
// There's no reason to think this is a long-term requirement.

// IMPORTANT: the closure will run every time you access this value, so if that has
// side effects, this won't work. It's only possible on pure value types.

// But the fact that this works as expected is actually kind of incredible.
// Think about what is required for it to work out the type for NestedList.Elem("first").

andelf

struct HashSet<T : Hashable> {
    typealias Element = T

    var _map: Dictionary<T, ()> = [:]

    var count: Int {
        return _map.count
    }

    var isEmpty: Bool {

jorgenisaksson

// Adapted from Cocoa Drawing Guide's "Create a CGPathRef fram an NSBezierPath Object"
func CGPathFromNSBezierPath(nsPath: NSBezierPath) -> CGPath! {
    
    if nsPath.elementCount == 0 {
        return nil
    }
    
    let path = CGPathCreateMutable()
    var didClosePath = false
    

floriankugler

NSURLConnection                                                                                             | NSURLSession
------------------------------------------------------------------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------
NSURLConnectionDelegate            connectionShouldUseCredentialStorage:                                    |
------------------------------------------------------------------------------------------------------------+--------------------------------------------------------------------------------------------------------------------------------------
NSURLConnectionDelegate            connection:willSendRequestForAuthenticationChallenge:                    | NSURLSessionDelegate            URLSession:didReceiveChallenge:completionHandler:
                                                                                                            | N

jacob414

#include <stdarg.h>
#import <Foundation/Foundation.h>

@interface Cls : NSObject {}

-(int) takes_block: (int)limit withBlock:(int (^)(int first, ...))block;
@end

@implementation Cls
-(int) takes_block: (int)limit withBlock:(int (^)(int first, ...))block {

andymatuschak

//
//  NSObject+BlockObservation.h
//  Version 1.0
//
//  Andy Matuschak
//  andy@andymatuschak.org
//  Public domain because I love you. Let me know how you use it.
//

#import <Cocoa/Cocoa.h>