paulrehkugler

struct Constants {
  let leftPadding: CGFloat
  let rightPadding: CGFloat

  static func defaultConfiguration() -> Constants { /* init */ }
  static func compactConfiguration() -> Constants { /* init with different stuff */ }
}

paulrehkugler

@interface TMObjectThatHasLotsOfDependenciesInjected : NSObject

- (nonnull instancetype)initWithDependency:(TMDependency * __nonnull)dependency
                         anotherDependency:(TMOtherDependency * __nonnull)anotherDependency NS_DESIGNATED_INITIALIZER;
                         
/// option 1: break inheritance
- (nullable instancetype)init __attribute__((unavailable("Use initWithDependency:anotherDependency: instead")));

@end

paulrehkugler

// Follow up to - https://gist.github.com/paulrehkugler/11063725

BOOL baseCaseCondition = NO; // obviously this should be data driven, not hardcoded

typedef void (^RecursiveBlock)(void (^)());
RecursiveBlock aRecursiveBlock;

aRecursiveBlock = ^(RecursiveBlock block){
  if ((baseCaseCondition) && block)
  {

paulrehkugler

// trying to make a block pointer
typedef void (^DoingBadStuffWithBlocks)();

DoingBadStuffWithBlocks *theCompilerHatesThis = &^{
  if (false)
  {
    *theCompilerHatesThis();
  }
}();

paulrehkugler

@interface UINavigationController(Completion)

- (void) pushViewController:(UIViewController *)viewController animated:(BOOL)animated completion:(void (^)(void))completion;

@end

paulrehkugler

// SomeProtocol.h
@protocol SomeProtocol <NSObject>

- (void) protocolMethod;

@end


// NSObject+SomeProtocolDefaultImplementation.h
@interface NSObject(SomeProtocolDefaultImplementation)

paulrehkugler

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000

#define IOS7_CODE_WITH_FALLBACK(iOS7_code, other_code) \
    do { \
        if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0")) {\
            iOS7_code \
        }\
        else { \
            other_code \
        } \

paulrehkugler

//
//  NSObject+PRKeyValueObserving.h
//  PRKeyValueObserving
//
//  Created by Paul Rehkugler on 3/8/14.
//  Copyright (c) 2014 Paul Rehkugler. All rights reserved.
//

#import <Foundation/Foundation.h>

paulrehkugler

- (BRYDescriptionBuilder *)appendInteger:(NSInteger)integer withName:(NSString *)name {
#if defined(__LP64__) && __LP64__
    return [self appendString:[NSString stringWithFormat:@"%li", integer] withName:name];
#else
    return [self appendString:[NSString stringWithFormat:@"%i", integer] withName:name];
#endif
}

- (BRYDescriptionBuilder *)appendUnsignedInteger:(NSUInteger)unsignedInteger withName:(NSString *)name {
#if defined(__LP64__) && __LP64__

paulrehkugler

/* MyModelObject.h */
@interface MyModelObject : NSObject

// this data is "publicly" immutable
@property (nonatomic, readonly) NSArray *someData;

@end