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@CodaFi
CodaFi / Sections.swift
Last active August 29, 2015 14:10
Operator sections for the Swift STL.
/// Sectional Sale
prefix operator >> {}
postfix operator >> {}
public prefix func >>(rhs: UInt16) -> UInt16 -> UInt16 {
return { lhs in lhs >> rhs }
}
public postfix func >>(lhs: UInt16) -> UInt16 -> UInt16 {
@jonsterling
jonsterling / Example.m
Created May 13, 2012 02:55
Safe keypaths without macros!
NSString *safe = self.keys.url.port.stringValue;
NSString *unsafe = @"url.port.stringValue";
assert([safe isEqualToString:unsafe]);
@steipete
steipete / PSPDFViewController.h
Last active June 6, 2017 03:56
This method will help to prevent a lot of emails about "weird bugs".
// Defines a yet undocumented method to add a warning if super isn't called.
#ifndef NS_REQUIRES_SUPER
#if __has_attribute(objc_requires_super)
#define NS_REQUIRES_SUPER __attribute((objc_requires_super))
#else
#define NS_REQUIRES_SUPER
#endif
#endif
@interface UIViewController (SubclassingWarnings)
@andymatuschak
andymatuschak / gist:2b311461caf740f5726f
Created December 28, 2014 18:17
A pragmatic and intentionally non-abstract solution to JSON decoding / initialization that doesn't require learning about five new operators.
struct User {
let id: Int
let name: String
let email: String?
}
extension User: JSONDecodable {
static func create(id: Int, name: String, email: String?) -> User {
return User(id: id, name: name, email: email)
}
@chriseidhof
chriseidhof / json.swift
Last active March 21, 2019 07:45
Reflection
import Cocoa
struct Person {
var name: String = "John"
var age: Int = 50
var dutch: Bool = false
var address: Address? = Address(street: "Market St.")
}
struct Address {
@BigZaphod
BigZaphod / Pathfinding.swift
Created November 24, 2015 17:33
AStar pathfinding in Swift
// uses PriorityQueue from https://github.com/mauriciosantos/Buckets-Swift
protocol Pathfinding {
typealias Node: Hashable
func neighborsFor(node: Node) -> [Node]
func costFrom(from: Node, to: Node) -> Int
func heuristicFrom(from: Node, to: Node) -> Int
}
@sahrens
sahrens / React Native: Animated - Code
Last active July 4, 2020 00:07
Example code from ReactEurope 2015 talk - React Native: Animated
/**
* The examples provided by Facebook are for non-commercial testing and
* evaluation purposes only.
*
* Facebook reserves all rights not expressly granted.
*
* 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 NON INFRINGEMENT. IN NO EVENT SHALL
* FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
@andymatuschak
andymatuschak / CollectionViewDataSource.swift
Last active February 12, 2021 09:44
Type-safe value-oriented collection view data source
//
// CollectionViewDataSource.swift
// Khan Academy
//
// Created by Andy Matuschak on 10/14/14.
// Copyright (c) 2014 Khan Academy. All rights reserved.
//
import UIKit
@orta
orta / gist:7117853
Created October 23, 2013 12:36
HTML -> NSAttributedString using only UIKit
+ (NSAttributedString *)artsyBodyTextAttributedStringFromHTML:(NSString *)HTML withFont:(UIFont *)font
{
NSMutableParagraphStyle *style = [[NSMutableParagraphStyle alloc] init];
style.lineHeightMultiple = 1.2;
style.paragraphSpacing = font.pointSize * .5;
NSDictionary *textParams = @{
NSFontAttributeName : font,
NSParagraphStyleAttributeName : style,
; Comments start with semicolons.
; Clojure is written in "forms", which are just
; lists of things inside parentheses, separated by whitespace.
;
; The clojure reader assumes that the first thing is a
; function or macro to call, and the rest are arguments.
;
; Here's a function that sets the current namespace:
(ns test)