0xced

@implementation UIClassSwapper

- (instancetype) initWithCoder:(UINibDecoder *)decoder
{
	NSString *className = [decoder decodeObjectForKey:@"UIClassName"];
	NSString *originalClassName = [decoder decodeObjectForKey:@"UIOriginalClassName"];
	
	Class class = NSClassFromString(className);
	Class originalClass = NSClassFromString(originalClassName);
	

steipete

// Xcode 6.3 defines new language features to declare nullability
#if __has_feature(nullability)
#define PSPDF_ASSUME_NONNULL_BEGIN _Pragma("clang assume_nonnull begin")
#define PSPDF_ASSUME_NONNULL_END _Pragma("clang assume_nonnull end")
#define ps_nullable nullable
#define ps_nonnull nonnull
#define ps_null_unspecified null_unspecified
#define ps_null_resettable null_resettable
#define __ps_nullable __nullable
#define __ps_nonnull __nonnull

JaviLorbada

Videos

• Introduction to Functional Programming Johannes Weiß - https://vimeo.com/100786088
• ReactiveCocoa at MobiDevDay Andrew Sardone - https://vimeo.com/65637501
• The Future Of ReactiveCocoa Justin Spahr-Summers - https://www.youtube.com/watch?v=ICNjRS2X8WM
• Enemy of the State Justin Spahr-Summers - https://www.youtube.com/watch?v=7AqXBuJOJkY
• WWDC 2014 Session 229 - Advanced iOS Application Architecture and Patterns Andy Matuschak - https://developer.apple.com/videos/play/wwdc2014/229/
• Functioning as a Functionalist Andy Matuschak - https://www.youtube.com/watch?v=rJosPrqBqrA
• Controlling Complexity in Swift Andy Matuschak - https://realm.io/news/andy-matuschak-controlling-complexity/

steipete

/// Performs `block` immediately and ignores subsequent calls during the same runloop.
#define pspdf_ensureCalledOnlyOncePerRunloop(block) do { \
static const char __onceKey; _pspdf_ensureCalledOnlyOncePerRunloop(self, &__onceKey, block); } while(0)
extern void _pspdf_ensureCalledOnlyOncePerRunloop(id self, const void *key, dispatch_block_t block);

void _pspdf_ensureCalledOnlyOncePerRunloop(id self, const void *key, dispatch_block_t block) {
    NSCParameterAssert(block);
    NSCParameterAssert(self);
    PSPDFAssertOnMainThread(); // run loop needs the main thread.

syncs.d

#!/usr/sbin/dtrace -q -s
/*
Overly spammy, mostly covered by the other probes (every "read" or "write" is a "request")
CFPreferencesServer$target:::request {
printf("REQUEST from pid %d at %Y ( domain: %s, user: %s, host: %s, container: %s, managed: %d)\n", arg0, walltimestamp, copyinstr(arg1) != NULL ? copyinstr(arg1) : "(NULL)" ?: "(NULL)", copyinstr(arg2) != NULL ? copyinstr(arg2) : "(NULL)", copyinstr(arg3) != NULL ? copyinstr(arg3) : "(NULL)", copyinstr(arg4) != NULL ? copyinstr(arg4) : "(NULL)", arg5);
}
*/

CFPreferencesServer$target:::write_rejected {
printf("REJECTED WRITE OF KEY %s request from pid %d for reason %s at %Y ( domain: %s, user: %s, host: %s, container: %s)\n", copyinstr(arg1) != NULL ? copyinstr(arg1) : "(NULL)", arg0, copyinstr(arg6) != NULL ? copyinstr(arg6) : "(NULL)", walltimestamp, copyinstr(arg2) != NULL ? copyinstr(arg2) : "(NULL)", copyinstr(arg3) != NULL ? copyinstr(arg3) : "(NULL)", copyinstr(arg4) != NULL ? copyinstr(arg4) : "(NULL)", copyinstr(arg5) != NULL ? copyinstr(arg5)

jspahrsummers

/// Observes a run loop to detect any stalling or blocking that occurs.
///
/// This class is thread-safe.
@interface GHRunLoopWatchdog : NSObject

/// Initializes the receiver to watch the specified run loop, using a default
/// stalling threshold.
- (id)initWithRunLoop:(CFRunLoopRef)runLoop;

/// Initializes the receiver to detect when the specified run loop blocks for

steipete

This is the code path that changed the status bar orientation on iOS 7:

* thread #1: tid = 0x698dbf, 0x00085830 WindowRotationIssue`-[AppDelegate application:willChangeStatusBarOrientation:duration:](self=0x7a041f90, _cmd=0x0137a18d, application=0x79e39cc0, newStatusBarOrientation=UIInterfaceOrientationPortraitUpsideDown, duration=0.80000000000000004) + 96 at AppDelegate.m:23, queue = 'com.apple.main-thread', stop reason = breakpoint 3.1
  * frame #0: 0x00085830 WindowRotationIssue`-[AppDelegate application:willChangeStatusBarOrientation:duration:](self=0x7a041f90, _cmd=0x0137a18d, application=0x79e39cc0, newStatusBarOrientation=UIInterfaceOrientationPortraitUpsideDown, duration=0.80000000000000004) + 96 at AppDelegate.m:23
    frame #1: 0x00bb6ab5 UIKit`-[UIApplication setStatusBarOrientation:animationParameters:notifySpringBoardAndFence:] + 242
    frame #2: 0x00bfa8e4 UIKit`-[UIWindow _setRotatableClient:toOrientation:updateStatusBar:duration:force:isRotating:] + 4761
    frame #3: 0x00bf9646 UIKit`-[UIWi

CodaFi

//
//  NUIProtocolChecker.h
//  NUIKit
//
//  Created by Robert Widmann on 1/14/15.
//  Copyright (c) 2015 CodaFi. All rights reserved.
//  Released under the MIT license.
//

#import <Foundation/Foundation.h>

chriseidhof

// This accompanies http://chris.eidhof.nl/posts/repmin-in-swift.html

import UIKit

// Unfortunately, we need Box

public class Box<T> {
    public let unbox: T
    public init(_ value: T) { self.unbox = value }
}

defagos

@implementation UILabel (SwizzlingExamples)

+ (void)load
{
    SwizzleSelectorWithBlock_Begin(self, @selector(initWithFrame:))
    ^(UILabel *self, CGRect frame) {
        if ((self = ((id (*)(id, SEL, CGRect))_imp)(self, _cmd, frame))) {
            // ...
        }
        return self;