steipete

// Defines a yet undocumented method to add a warning if super isn't called.
#ifndef NS_REQUIRES_SUPER
#if __has_attribute(objc_requires_super)
#define NS_REQUIRES_SUPER __attribute((objc_requires_super))
#else
#define NS_REQUIRES_SUPER
#endif
#endif

steipete

// Taken from the commercial iOS PDF framework http://pspdfkit.com.
// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
// Licensed under MIT (http://opensource.org/licenses/MIT)
//
// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.

// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.

#import <objc/runtime.h>
#import <objc/message.h>

bencochran

// 1.
// “Safe” but retain cycle.
[self setCompletionBlock:^{
    NSLog(@"1: %@", self->_foo);
}];


// 2.
// Unsafe. Could dereference nil.
__weak BCThing *weakSelf = self;

rjw57

/* CGSPrivate.h -- Header file for undocumented CoreGraphics stuff. */

/* This file is a relicensed portion of DesktopManager and was originally released under
 * the terms of the GNU General Public Licence. Original licence text follows the new terms.
 * The contents of this file has been re-released by the original author under the following terms:
 *
 * Copyright (C) 2003, 2004, 2013 Richard J Wareham <richwareham@users.sourceforge.net>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this
 * software and associated documentation files (the "Software"), to deal in the Software

jspahrsummers

@interface RACSocketReader : NSObject

// Sends a RACSignal whenever there's new data ready to be read. Each signal
// will send an NSData upon subscription.
//
// If you only want the NSData objects as fast as possible, simply -concat
// this signal to get a eager signal of NSData values.
@property (nonatomic, strong, readonly) RACSignal *signalOfDataSignals;

- (id)initWithSocketDescriptor:(int)fildes;

jamztang

Copyright (c) 2013 Jamz Tang <jamz@jamztang.com>
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is furnished
to do so, subject to the following conditions:
 
The above copyright notice and this permission notice shall be included in all

subdigital

// Property Nonatomic Strong
// Platform: All
// Completion Scopes: ClassInterfaceMethods

@property (nonatomic, strong) <# class_name #> *<# variable_name #>;

indragiek

//
//  FGOManagedObjectContextStack.h
//
//  Created by Indragie Karunaratne on 2012-12-23.
//  Copyright (c) 2012 Indragie Karunaratne. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface FGOManagedObjectContextStack : NSObject

jspahrsummers

Simple visual illustrations of how CGRectDivideWithPadding works.

Slicing from CGRectMinXEdge

  +-------+---------+------------>
e |       |         |
d | slice | padding | remainder…
g |       |         |
e |       |         |

joshaber

self.startButton.rac_command = [RACCommand command];
self.stopButton.rac_command = [RACCommand command];

__unsafe_unretained id weakSelf = self;
id<RACSignal> tick = [[[[self.startButton.rac_command
    map:^(id _) {
        RTAFirstView *strongSelf = weakSelf;
        // Map each start button click to a new signal that fires every second
        // and stops when the stop button is clicked.
        return [[RACSignal interval:1] takeUntil:strongSelf.stopButton.rac_command];