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@shazron
shazron / sim-run.sh
Created October 25, 2011 21:53
Run Xcode Simulator project from the command line
#!/bin/bash
#
# Build and iPhone Simulator Helper Script
# Shazron Abdullah 2011
#
# WARN: - if your .xcodeproj name is not the same as your .app name,
# this won't work without modifications
# - you must run this script in where your .xcodeproj file is
PROJECTNAME=$1
@nuthatch
nuthatch / NSManagedObject+Serialization.h
Last active May 8, 2019 11:25 — forked from pkclsoft/NSManagedObject+Serialization.h
Fixes for Peter Easdown's category 1. don't assume each Entity name matches the Class name. 2. strip DATE_ATTR_PREFIX when deserializing dates back into NSManagedObject 3. add support for NSOrderedSet 4. use set to keep traversal history, and allow classes to opt-out with serializationObjectsToSkip
@interface NSManagedObject (Serialization)
- (NSDictionary*) toDictionary;
- (void) populateFromDictionary:(NSDictionary*)dict;
+ (NSManagedObject*) createManagedObjectFromDictionary:(NSDictionary*)dict
inContext:(NSManagedObjectContext*)context;
@end
@calebd
calebd / AsynchronousOperation.swift
Last active April 29, 2023 13:12
Concurrent NSOperation in Swift
import Foundation
/// An abstract class that makes building simple asynchronous operations easy.
/// Subclasses must implement `execute()` to perform any work and call
/// `finish()` when they are done. All `NSOperation` work will be handled
/// automatically.
open class AsynchronousOperation: Operation {
// MARK: - Properties
@grosch
grosch / CoreDataFetchController.swift
Last active October 28, 2017 01:25
Better NSFetchedResultscontroller
//
// CoreDataFetchController.swift
//
// Created by Scott Grosch on 12/18/14.
// Copyright (c) 2014 Gargoyle Software, LLC. All rights reserved.
//
import CoreData
final class CoreDataFetchController<T : NSManagedObject> {
@pietbrauer
pietbrauer / Makefile
Created April 26, 2015 10:03
Shutdown and reset all iOS Simulators
erase_sim:
./reset_sim.sh 2>/dev/null; true
@doozMen
doozMen / gist:15981fef2e025ad63608
Created June 10, 2015 10:52
A swift vertical layout alternative
//
// Layout.swift
//
// Created by Stijn Willems on 10/06/15.
// Copyright (c) 2015 dooZ. All rights reserved.
//
import Foundation
@sharplet
sharplet / trap.swift
Created November 23, 2015 03:46
Simple signal handling in Swift
import Darwin
enum Signal: Int32 {
case HUP = 1
case INT = 2
case QUIT = 3
case ABRT = 6
case KILL = 9
case ALRM = 14
case TERM = 15
@andymatuschak
andymatuschak / States-v3.md
Last active June 12, 2024 04:17
A composable pattern for pure state machines with effects (draft v3)

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,

@algal
algal / PrintToStdErr.swift
Last active July 27, 2022 06:47
print to stderr in Swift 3
// known-good: Xcode 8, Swift 3
import Foundation
var standardError = FileHandle.standardError
extension FileHandle : TextOutputStream {
public func write(_ string: String) {
guard let data = string.data(using: .utf8) else { return }