lerno

class Bar : NSObject
{
	var ref : (()->Bool)?
	deinit { println("Bye from bar!") }
}

class Foo : NSObject
{
	var bar : Bar
	override init()

lerno

#import <objc/runtime.h>

@interface TestObject : NSObject
@property (nonatomic, strong) NSString *aString;
@property (nonatomic, assign) int aNumber;
@property (nonatomic, strong) NSArray *anArray;
@property (nonatomic, strong) NSDictionary *aDict;
@property (nonatomic, strong) TestObject *childObject;
@end

lerno

- (void)setProperties:(NSDictionary *)keyToPropertyDictionary fromDictionary:(NSDictionary *)properties
{
	for (id key in [keyToPropertyDictionary keyEnumerator])
	{
		id value = properties[key];
		if (!value) continue;
		value = [NSNull null] == value ? nil : value;
		id realKey = keyToPropertyDictionary[key];
		NSError *error = nil;
		if (![self validateValue:&value forKey:realKey error:&error])

lerno

extension GameCenter
{
	struct NotificationKey
	{
		static let Error = "error"
		static let Achievement = "achievement"
	}
	
	struct Notification
	{