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@b3ll
b3ll / LayoutInvalidating.swift
Last active February 1, 2021 12:50
@propertyWrapper
public final class LayoutInvalidating<Value> where Value: Equatable {
public static subscript<EnclosingSelf>(
_enclosingInstance observed: EnclosingSelf,
wrapped wrappedKeyPath: ReferenceWritableKeyPath<EnclosingSelf, Value>,
storage storageKeyPath: ReferenceWritableKeyPath<EnclosingSelf, LayoutInvalidating>
) -> Value where EnclosingSelf: UIView {
get {
return observed[keyPath: storageKeyPath].stored
@capttaco
capttaco / Fetchable.swift
Last active May 3, 2019 17:28
A utility protocol for custom NSManagedObjects that makes querying contexts simpler and more convenient. Requires Swift 2.
import CoreData
protocol Fetchable
{
typealias FetchableType: NSManagedObject
static func entityName() -> String
static func objectsInContext(context: NSManagedObjectContext, predicate: NSPredicate?, sortedBy: String?, ascending: Bool) throws -> [FetchableType]
static func singleObjectInContext(context: NSManagedObjectContext, predicate: NSPredicate?, sortedBy: String?, ascending: Bool) throws -> FetchableType?
static func objectCountInContext(context: NSManagedObjectContext, predicate: NSPredicate?) -> Int
@langford
langford / gist:68b86eb3ee274f426f35
Created January 30, 2015 20:03
Doing IPA builds from the command line because you're tired of the lack of repeatability in Xcode Adhoc builds
#!/bin/sh
# Current as working as of 2014/09/22
# modified form of http://stackoverflow.com/questions/25056144/xcode-6-how-to-pick-signing-certificate-provisioning-profile-for-ad-hoc-distri
# Xcode 6
MYAPP="HELLOWORLD"
OUTPUTDIR="$HOME/Desktop/$MYAPP"
APPNAME="ANAppName"
SCHEME="ASchemeName"
@monkeydom
monkeydom / swiftc.sh
Last active October 24, 2015 23:50
Script to be used in a hashbang to conditionally compile and then run the swift script referenced. usage #!/usr/bin/env swiftc.sh in your swift file, and put in path
#!/bin/sh
SWIFT=$(/usr/bin/env xcrun -f swift)
SCRIPTPATH=$1
COMPILEDPATH="$SCRIPTPATH.o"
SDKPATH=$(/usr/bin/env xcrun --show-sdk-path --sdk macosx)
#compile if necessary
@OdNairy
OdNairy / main.m
Last active December 21, 2015 00:28
// Source: https://devforums.apple.com/message/866487#866487
typedef int (*PYStdWriter)(void *, const char *, int);
static PYStdWriter _oldStdWrite;
int __pyStderrWrite(void *inFD, const char *buffer, int size)
{
if ( strncmp(buffer, "AssertMacros: queueEntry", 24) == 0 ) {
return 0;
@steipete
steipete / PSPDFUIKitMainThreadGuard.m
Last active May 27, 2024 12:11
This is a guard that tracks down UIKit access on threads other than main. This snippet is taken from the commercial iOS PDF framework http://pspdfkit.com, but relicensed under MIT. Works because a lot of calls internally call setNeedsDisplay or setNeedsLayout. Won't catch everything, but it's very lightweight and usually does the job.You might n…
// Taken from the commercial iOS PDF framework http://pspdfkit.com.
// Copyright (c) 2014 Peter Steinberger, PSPDFKit GmbH. All rights reserved.
// Licensed under MIT (http://opensource.org/licenses/MIT)
//
// You should only use this in debug builds. It doesn't use private API, but I wouldn't ship it.
// PLEASE DUPE rdar://27192338 (https://openradar.appspot.com/27192338) if you would like to see this in UIKit.
#import <objc/runtime.h>
#import <objc/message.h>
@twobitlabs
twobitlabs / gist:4226365
Created December 6, 2012 17:35
Blocks cheat sheet
// http://cocoawithlove.com/2009/10/ugly-side-of-blocks-explicit.html has a nice breakdown of the syntax--it helps to think of the ^ as similar to a pointer dereference symbol *
// block typedef:
typedef void(^Block)();
typedef void(^ConditionalBlock)(BOOL);
typedef NSString*(^BlockThatReturnsString)();
typedef NSString*(^ConditionalBlockThatReturnsString)(BOOL);
// block property with typedef:
@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this: