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@gonzalezreal
gonzalezreal / TGRAsyncTestHelper.m
Last active August 29, 2015 13:58
TGRAsyncTestHelper
#import <Foundation/Foundation.h>
#define TGR_RUNLOOP_INTERVAL 0.05
#define TGR_TIMEOUT_INTERVAL 1.0
#define TGR_RUNLOOP_COUNT TGR_TIMEOUT_INTERVAL / TGR_RUNLOOP_INTERVAL
#define TGR_CAT(x, y) x ## y
#define TGR_TOKCAT(x, y) TGR_CAT(x, y)
#define __runLoopCount TGR_TOKCAT(__runLoopCount,__LINE__)
@gonzalezreal
gonzalezreal / Singleton.swift
Last active February 1, 2018 09:23
A naive? attempt to create a Singleton in Swift
class FileManager {
struct StaticInstance {
static var instance = FileManager()
}
class var defaultManager : FileManager {
return StaticInstance.instance
}
}
@kristopherjohnson
kristopherjohnson / pipe-forward.swift
Last active March 29, 2024 19:44
Swift: define F#-style pipe-forward (|>) operator that evaluates from left to right.
// F#'s "pipe-forward" |> operator
//
// Also "Optional-chaining" operators |>! and |>&
//
// And adapters for standard library map/filter/sorted
infix operator |> { precedence 50 associativity left }
infix operator |>! { precedence 50 associativity left }
infix operator |>& { precedence 50 associativity left }
infix operator |>* { precedence 50 associativity left }
@staltz
staltz / introrx.md
Last active April 14, 2026 03:11
The introduction to Reactive Programming you've been missing
@kristopherjohnson
kristopherjohnson / enumerateEnum.swift
Last active May 12, 2017 01:56
Helper functions for enumerating values of a Swift enum
// Protocol for a type that supports a fromRaw(Int) conversion
// (such as "enum Foo: Int { ... }")
protocol ConvertibleFromRawInt {
class func fromRaw(raw: Int) -> Self?
}
// Note: Tried to use Swift's standard RawRepresentable protocol rather
// than ConvertibleFromRawInt, but couldn't get it to compile.
// Don't know whether it is a Swift bug or something I was doing wrong.
@stilist
stilist / gist:cd7fdfabbf9ec5ed89b7
Created July 3, 2014 21:46
Installing OpenCV on OS X (using Homebrew)

Based on http://jjyap.wordpress.com/2014/02/21/installing-opencv-2-4-8-on-mac-osx-with-python-support/

  1. edit .bashrc or .bash_profile to include: export PATH="/Library/Frameworks/Python.framework/Versions/Current/bin:/Library/Python/2.7/site-packages/:$PATH"
  2. brew update
  3. brew tap homebrew/science
  4. brew install opencv
  5. cd /Library/Python/2.7/site-packages/
  6. ln -s /usr/local/Cellar/opencv/2.4.9/lib/python2.7/site-packages/cv.py cv.py
  7. ln -s /usr/local/Cellar/opencv/2.4.9/lib/python2.7/site-packages/cv2.so cv2.so
@nicklockwood
nicklockwood / Hacking UIView Animation Blocks.md
Last active August 24, 2024 17:08
This article was originally written for objc.io issue 12, but didn't make the cut. It was intended to be read in the context of the other articles, so if you aren't familiar with concepts such as CALayer property animations and the role of actionForKey:, read the articles in that issue first.

Hacking UIView animation blocks for fun and profit

In this article, I'm going to explore a way that we can create views that implement custom Core Animation property animations in a natural way.

As we know, layers in iOS come in two flavours: Backing layers and hosted layers. The only difference between them is that the view acts as the layer delegate for its backing layer, but not for any hosted sublayers.

In order to implement the UIView transactional animation blocks, UIView disables all animations by default and then re-enables them individually as required. It does this using the actionForLayer:forKey: method.

Somewhat strangely, UIView doesn't enable animations for every property that CALayer does by default. A notable example is the layer.contents property, which is animatable by default for a hosted layer, but cannot be animated using a UIView animation block.

@chriseidhof
chriseidhof / LICENSE
Last active October 30, 2025 15:50
A tiny networking library
Copyright 2015 Chris Eidhof
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHE
@Pitometsu
Pitometsu / appfuncr.swift
Last active May 13, 2020 03:26
Applicative functor in swift for (->)r type
// lets define Applicative Functor for (->)r type (function of function)
// tip: similar to Reader monad.
infix operator <*> { associativity left precedence 150 }
func <*> <A, B, C> (f : A -> B -> C, g : A -> B)(x : A) -> C {
return f (x) (g(x))
}
infix operator <|> { associativity left precedence 150 }
func <|> <A, B, C> (f : A -> B -> C, g : C -> A) -> C -> B -> C {
return pure(f) <*> g