nicklockwood

Thoughts on Swift 2 Errors

When Swift was first announced, I was gratified to see that one of the (few) philosophies that it shared with Objective-C was that exceptions should not be used for control flow, only for highlighting fatal programming errors at development time.

So it came as a surprise to me when Swift 2 brought (What appeared to be) traditional exception handling to the language.

Similarly surprised were the functional Swift programmers, who had put their faith in the Haskell-style approach to error handling, where every function returns an enum (or monad, if you like) containing either a valid result or an error. This seemed like a natural fit for Swift, so why did Apple instead opt for a solution originally designed for clumsy imperative languages?

I'm going to cover three things in this post:

mxpr

import plistlib

# Read Plists
myAppInfoPlist = plistlib.readPlist(“MyApp/Info.plist”)
watchKitExtensionInfoPlist =  plistlib.readPlist(“WatchKitExtension/Info.plist”)
watchKitAppInfoPlist = plistlib.readPlist(“WatchKitApp/Info.plist”)

# Update Watch Kit Extension Plist
watchKitExtensionInfoPlist[“NSExtension”][“NSExtensionAttributes”][“WKAppBundleIdentifier”] = watchKitAppInfoPlist[“CFBundleIdentifier”]
watchKitExtensionInfoPlist[“CFBundleVersion”] = myAppInfoPlist[“CFBundleVersion”]

scottdelly

//If you have a Bridging-Header:
#import <FBSDKCoreKit/FBSDKCoreKit.h>
#import <FBSDKLoginKit/FBSDKLoginKit.h>

//In your AppDelegate:

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [String: AnyObject]?) -> Bool {
    //App launch code
    FBSDKApplicationDelegate.sharedInstance().application(application, didFinishLaunchingWithOptions: launchOptions)
    //Optionally add to ensure your credentials are valid:

joshaber

import Cocoa

class GeneralThing<S> {
	var stuff: S?

	func doIt() {
		if let s = stuff {
			doWithStuff(s)
		}
	}

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

OmeGak

function GinkgoGames::SinglePlayerLevel::onQuit() {
    // Achievement check begins
    rbx = *(rdi + 0x70);                                                    //     rbx = ID of current scenario
    rax = GIN::Symbolize("sp_forst_destructor");                            //     rax = representation of scenario "sp_forst_destructor"
    if (rbx == rax) {                                                       //     check if we are in scenario "sp_forst_destructor"
        rax = GIN::Node::getPropertyValue(
            GIN::Node::find(GIN::Symbolize("destructionDirector")),         //     destructionDirector is the unavoidable mechanism
                            "Capacitor",                                    //     that starts once all 8 shards are plugged in
                            "killCounter",
                            "charge",

alan-mushi

/*
 * This is a simple example of "scrolling" form with ncurses.
 * It use "page" to allow forms with more fields than your window can print.
 *
 * It prints a "label" (inactive field) and a regular field and let you
 * "scroll" pages of the form.
 *
 * How to compile:
 *	gcc -o test scrolling_form.c -lform -lncurses
 */

randomsequence

@implementation CIContext (IntermediateImage)

- (CIImage *)rsq_renderToIntermediateImage:(CIImage *)image {
    CIImage *intermediateImage = nil;
    CGSize size = image.extent.size;
    CVPixelBufferRef pixelBuffer = NULL;
    CVReturn status = CVPixelBufferCreate(kCFAllocatorDefault,
                                          size.width,
                                          size.height,
                                          kCVPixelFormatType_32ARGB,

alloy

# Do *not* load any libs here that are *not* part of Ruby’s standard-lib. Ever.

desc "Install all dependencies"
task :bootstrap do
  if system('which bundle')
    sh "bundle install"
    sh "git submodule update --init"
    # etc
  else
    $stderr.puts "\033[0;31m[!] Please install the bundler gem manually: $ [sudo] gem install bundler\e[0m"

steipete

UIView *PSPDFFindFirstResponderBeneathView(UIView *view) {
    // Stop if e.g. we show an UIAlertView with a text field.
    if (UIApplication.sharedApplication.keyWindow != view.window) return nil;

    // Search recursively for first responder.
    for (UIView *childView in view.subviews) {
        if ([childView respondsToSelector:@selector(isFirstResponder)] && childView.isFirstResponder) return childView;
        UIView *result = PSPDFFindFirstResponderBeneathView(childView);
        if (result) return result;
    }