jspahrsummers

RACSequence *views = [RACSequence concat:@[
	self.buttons.rac_sequence,
	self.buttonLabels.rac_sequence,
	self.informationLabels.rac_sequence
]];

for (NSView *view in views) {
	[view.layer rac_liftSelector:@selector(addAnimation:forKey:) withObjects:refreshingAnimation, @"opacity"];
}

jspahrsummers

- (id)initWithFrame:(CGRect)rect {
    self = [super initWithFrame:rect];
    if (self == nil) return nil;

    [self initializeComponent];

    RAC(self.title.text) = RACAble(self.viewModel.model.title);
    RAC(self.userAndOrgTiles.itemSource) = RACAble(self.viewModel.userAndOrgTiles);
    self.loginButton.rac_command = self.viewModel.showLoginCommand;

jspahrsummers

- (RACSignal*)friendsId
{
    return [self enqueueWithCursor:-1];
}
 
- (RACSignal*)enqueueWithCursor:(NSInteger)cursor
{
    @weakify(self);
    return [[self idsAtCursor:cursor]
        // Map each `next` (there should only be one) to a new signal.

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;

jspahrsummers

// The weak pointer is read, and retained until the message send completes its synchronous work.
[weakValue doAThing];

jspahrsummers

// Check name validity
RACSignal *nameValid = [RACAbleWithStart(self.name) map:^(NSString *name) {
    return @(name.length > 0);
}];

RACSignal *nameValidationMessage = [nameValid map:^ id (NSNumber *valid) {
    return valid.boolValue ? nil : @"Please enter a name that matches our bullshit rules";
}];

// Check email validity

jspahrsummers

#define $(...) \
    ({ \
        __weak __typeof__(self) weakSelf = self; \
        \
        ^(__VA_ARGS__) { \
            __strong __typeof__(weakSelf) self = weakSelf; \
            $_body_

#define $_body_(...) \
            __VA_ARGS__ \

jspahrsummers

#define self \
	( \
		_Pragma("clang diagnostic push") _Pragma("clang diagnostic ignored \"-Wunused-value\"") self, \
		/* Depends on _cmd being a const copy, like other captured variables. */ \
		_Pragma("clang diagnostic pop") (*(_cmd = _cmd, &self)) \
	)

// Replace libextobjc's @weakify with one that's aware of the "self" macro.
#undef ext_weakify_
#define ext_weakify_(INDEX, CONTEXT, VAR) \

jspahrsummers

Control/Monad/Trans/Resource.hs:613:24:
    Could not deduce (m ~ IO)
    from the context (MonadBaseControl IO m)
      bound by the type signature for
                 resourceForkIO :: MonadBaseControl IO m =>
                                   ResourceT m () -> ResourceT m ThreadId
      at Control/Monad/Trans/Resource.hs:601:19-81
      `m' is a rigid type variable bound by
          the type signature for
            resourceForkIO :: MonadBaseControl IO m =>

jspahrsummers

__block void (^myRecursiveBlock)(int);
id myBlock = ^(int x) {
    if (x > 5) {
        // Release the block from its own implicit retain cycle.
        myRecursiveBlock = nil;
    } else {
        myRecursiveBlock(x + 1);
    }
};