joshaber

class F<A> {
}

protocol Functor {
	typealias A
	typealias B
	typealias FA = F<A>
	typealias FB = F<B>
	func fmap(a: FA, fn: (A -> B)) -> FB
}

joshaber

Swift: Wanted: Generalized chaining

Summary:
Swift's Optional chaining is super cool.

It'd be really really cool if we could generalize that (monads!) to Haskell-like do-syntax.

Steps to Reproduce:

joshaber

func renderForm(state: State) -> Element<State> {
	let incButton = Button(title: "Increment", fn: { mapCount($0, inc) })
				 |> sizeToFit
				 |> offset(0, 40)

	let decButton = Button(title: "Decrement", fn: { mapCount($0, dec) })
				 |> sizeToFit

	let count = Label<State>(text: "\(state.count)")
			 |> sizeToFit

joshaber

#!/bin/bash

echo "*** Removing saved user…"

rm -rf "${HOME}/Library/Application Support/GitHub for Mac/usersByServer.plist"

echo "*** Removing keychain items…"
security -q delete-internet-password -s github.com/mac
security -q delete-generic-password -l 'GitHub for Mac — github.com'

joshaber

CGRect newFrame = [view.superview convertRect:view.frame toView:nil];
[view.window addSubview:view];
view.frame = newFrame;

joshaber

CGRect newFrame = [newSuperview convertRect:view.frame fromView:nil];
[newSuperview addSubview:view];
view.frame = newFrame;

joshaber

- (void)floatIntoWindow {
    if(self.superview == self.window) return;
    
    CGRect newFrame = [self.superview convertRect:self.frame toView:nil];
    [self.window addSubview:self];
    self.transform = [self transformForCurrentInterfaceOrientation];
    self.frame = newFrame;
}

- (void)unfloatIntoView:(UIView *)newSuperview {

joshaber

- (NSSize)sizeWithSize:(NSSize)size {
    if([self length] < 1) return NSZeroSize;
    
    NSTextContainer *textContainer = [[[NSTextContainer alloc] initWithContainerSize:size] autorelease];
    NSTextStorage *textStorage = [[[NSTextStorage alloc] initWithAttributedString:self] autorelease];
    NSLayoutManager *layoutManager = [[[NSLayoutManager alloc] init] autorelease];
    [layoutManager addTextContainer:textContainer];
    [textStorage addLayoutManager:layoutManager];
    [layoutManager setHyphenationFactor:0.0];

joshaber

NSString *base64Encode(NSData *data);
NSString *base64Encode(NSData *data) {
    BIO *context = BIO_new(BIO_s_mem());
	BIO *command = BIO_new(BIO_f_base64());
    context = BIO_push(command, context);
	
    BIO_write(context, [data bytes], (int) [data length]);
    (void) BIO_flush(context);
	
    char *outputBuffer;

joshaber

NSIndexSet *matches = [self.elements indexesOfObjectsWithOptions:NSEnumerationConcurrent
 passingTest:(BOOL ^(ChiroXMLElement *element, NSUInteger index, BOOL *stop){
 return (BOOL)([name compare:element.tag options:options] == NSOrderedSame);
})
];