russbishop

// Russ Bishop
// PlanGrid
// MIT licensed, use freely.

public protocol OptionalType {
    associatedtype WrappedType
    init()
}

extension Optional: OptionalType {

russbishop

// Working around Foundation deficiencies when trying to append to a file
// (and without run loops, delegates, and other BS).
// Why is this so complicated?

import Foundation


public final class TemporaryFile {
    public let handle: NSFileHandle //IUO until Swift 2.2
    public let url: NSURL

russbishop

/*
Basically what we are going to do is use and profit from NSURLRequests being conformant to NSCoding, 
and a little known API from NSURLProtocol which allows us attach info to requests.
*/

//Step 0: For the purpose of this gist, we'll already have a background session setup and assume a bunch of stuff.
NSURLSession *bgSession = [NSURLSession magicMethodWhichGivesMeTheAlreadySetupSession]; //Geeez, Methods are long in Obj-C.

//IMPORTANT: Request must be mutable in order for this to work. Got an immutable one. Make a copy. Can't? Well, Make it so!.
//Step 1: Setup your basic request.

russbishop

var sequencePoint: Int32 = 0
func printSequencePoint(context: String) {
    print("\(context): \(OSAtomicIncrement32(&sequencePoint))")
}

var g = (0..<10).generate()
let seq = lazy(AnySequence(anyGenerator { _ -> Int? in
    printSequencePoint("generator")
    return g.next()
    }))

russbishop

var g = (0..<10).generate()
let seq = lazy(AnySequence(anyGenerator { _ -> Int? in
        print("called") //prints "called" 11 times
        return g.next()
    }))
    .filter { $0 != 2 }
    .filter { $0 != 4 }

for x in seq {
    print("item: \(x)")

russbishop

//
//  ReactiveCocoa+PlanGrid.swift
//  PlanGrid
//
//  Created by Russ Bishop on 7/28/15.
//  Copyright (c) 2015 PlanGrid. All rights reserved.
//

import Foundation
import ReactiveCocoa

russbishop

private var queueContextKey = UnsafeMutablePointer<Void>.alloc(1)
private var queueContextValue = UnsafeMutablePointer<Void>.alloc(1)
private var mainQueueContextValue = UnsafeMutablePointer<Void>.alloc(1)

class QueueTest {
    private let onQueue: dispatch_queue_t

    init(useBackgroundQueue: Bool = false) {
        if useBackgroundQueue {
            let queueAttribs = dispatch_queue_attr_make_with_qos_class(DISPATCH_QUEUE_SERIAL, QOS_CLASS_UTILITY, 0)

russbishop

typealias verFunc = @convention(c) ()->UnsafePointer<CChar>

let libz = dlopen("libz.dylib", RTLD_LAZY)
let ret = dlsym(libz, "zlibVersion")
let zLibVersion = unsafeBitCast(ret, verFunc.self)
print("\(String.fromCString(zLibVersion())!)")

russbishop

import Foundation

public enum TruncateMode: Int {
    case Head = 0
    case Middle = 1
    case Tail = 2
}

public extension String {
    func nilIfEmpty() -> String? {

russbishop

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