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Merge pull request #30 from ReactKit/playground
[Playground] Add examples.
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‎Playgrounds/01-Sync.playground/Contents.swift

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//: Playground - noun: a place where people can play
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import Cocoa
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import XCPlayground
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//
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// NOTE: custom framework needs to be built first (and restart Xcode if needed)
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//
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// Importing Custom Frameworks Into a Playground
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// https://developer.apple.com/library/prerelease/ios/recipes/Playground_Help/Chapters/ImportingaFrameworkIntoaPlayground.html
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//
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import SwiftTask
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typealias Progress = Float
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typealias Value = String
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typealias Error = NSError
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typealias MyTask = Task<Progress, Value, Error>
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let myError = NSError(domain: "MyErrorDomain", code: 0, userInfo: nil)
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//--------------------------------------------------
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// Example 1: Sync fulfilled -> success
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//--------------------------------------------------
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let task = MyTask(value: "Hello")
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.success { value -> String in
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return "\(value) World"
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}
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.success { value -> String in
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return "\(value)!!!"
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}
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task.value
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//--------------------------------------------------
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// Example 2: Sync rejected -> success -> failure
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//--------------------------------------------------
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let task2a = MyTask(error: myError)
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.success { value -> String in
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return "Never reaches here..."
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}
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let task2b = task2a
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.failure { error, isCancelled -> String in
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return "ERROR: \(error!.domain)" // recovery from failure
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}
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task2a.value
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task2a.errorInfo
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task2b.value
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task2b.errorInfo
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//--------------------------------------------------
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// Example 3: Sync fulfilled or rejected -> then
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//--------------------------------------------------
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// fulfills or rejects immediately
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let task3a = MyTask { progress, fulfill, reject, configure in
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if arc4random_uniform(2) == 0 {
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fulfill("Hello")
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}
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else {
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reject(myError)
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}
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}
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let task3b = task3a
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.then { value, errorInfo -> String in
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if let errorInfo = errorInfo {
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return "ERROR: \(errorInfo.error!.domain)"
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}
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return "\(value!) World"
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}
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task3a.value
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task3a.errorInfo
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task3b.value
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task3b.errorInfo

‎Playgrounds/01-Sync.playground/Sources/SupportCode.swift

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//
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// This file (and all other Swift source files in the Sources directory of this playground) will be precompiled into a framework which is automatically made available to 01-Sync.playground.
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//

‎Playgrounds/01-Sync.playground/contents.xcplayground

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<playground version='5.0' target-platform='osx'/>

‎Playgrounds/02-Async.playground/Contents.swift

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//: Playground - noun: a place where people can play
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import Cocoa
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import XCPlayground
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//
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// NOTE: custom framework needs to be built first (and restart Xcode if needed)
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//
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// Importing Custom Frameworks Into a Playground
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// https://developer.apple.com/library/prerelease/ios/recipes/Playground_Help/Chapters/ImportingaFrameworkIntoaPlayground.html
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//
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import SwiftTask
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typealias Progress = Float
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typealias Value = String
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typealias Error = NSError
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typealias MyTask = Task<Progress, Value, Error>
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let myError = NSError(domain: "MyErrorDomain", code: 0, userInfo: nil)
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// for async test
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XCPSetExecutionShouldContinueIndefinitely()
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// fulfills after 100ms
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func asyncTask(value: String) -> MyTask
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{
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return MyTask { progress, fulfill, reject, configure in
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dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 100_000_000), dispatch_get_main_queue()) {
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fulfill(value)
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}
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}
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}
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//--------------------------------------------------
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// Example 1: Async
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//--------------------------------------------------
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let task1a = asyncTask("Hello")
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let task1b = task1a
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.success { value -> String in
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return "\(value) World"
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}
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// NOTE: these values should be all nil because task is async
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task1a.value
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task1a.errorInfo
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task1b.value
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task1b.errorInfo
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//--------------------------------------------------
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// Example 2: Async chaining
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//--------------------------------------------------
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let task2a = asyncTask("Hello")
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let task2b = task2a
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.success { value -> MyTask in
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return asyncTask("\(value) Cruel") // next async
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}
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.success { value -> String in
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return "\(value) World"
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}

‎Playgrounds/02-Async.playground/Sources/SupportCode.swift

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//
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// This file (and all other Swift source files in the Sources directory of this playground) will be precompiled into a framework which is automatically made available to 02-Async.playground.
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//

‎Playgrounds/02-Async.playground/contents.xcplayground

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<playground version='5.0' target-platform='osx'>
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<timeline fileName='timeline.xctimeline'/>
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</playground>

‎Playgrounds/02-Async.playground/timeline.xctimeline

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<?xml version="1.0" encoding="UTF-8"?>
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<Timeline
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version = "3.0">
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<TimelineItems>
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</TimelineItems>
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</Timeline>

‎Playgrounds/03-Alamofire.playground/Contents.swift

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//: Playground - noun: a place where people can play
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import Cocoa
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import XCPlayground
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//
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// NOTE: custom framework needs to be built first (and restart Xcode if needed)
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//
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// Importing Custom Frameworks Into a Playground
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// https://developer.apple.com/library/prerelease/ios/recipes/Playground_Help/Chapters/ImportingaFrameworkIntoaPlayground.html
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//
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import SwiftTask
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import Alamofire
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typealias Progress = (bytesWritten: Int64, totalBytesWritten: Int64, totalBytesExpectedToWrite: Int64)
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typealias Value = String
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typealias Error = NSError
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typealias AlamofireTask = Task<Progress, Value, Error>
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let myError = NSError(domain: "MyErrorDomain", code: 0, userInfo: nil)
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// for async test
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XCPSetExecutionShouldContinueIndefinitely()
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//--------------------------------------------------
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// Example 1: Alamofire progress
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//--------------------------------------------------
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// define task
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let task = AlamofireTask { progress, fulfill, reject, configure in
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let request = Alamofire.download(.GET, "http://httpbin.org/stream/100", Request.suggestedDownloadDestination(directory: .DocumentDirectory, domain: .UserDomainMask))
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request
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.progress { (bytesWritten, totalBytesWritten, totalBytesExpectedToWrite) in
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progress((bytesWritten, totalBytesWritten, totalBytesExpectedToWrite) as Progress)
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}
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.response { (request, response, data, error) in
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// print
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data
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error?.localizedDescription
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if let error = error {
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reject(error)
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return
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}
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fulfill("OK")
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}
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}
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task
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.progress { oldProgress, newProgress in
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// print
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newProgress.bytesWritten
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newProgress.totalBytesWritten
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}
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.then { value, errorInfo -> String in
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if let errorInfo = errorInfo {
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return "ERROR: \(errorInfo.error!.domain)"
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}
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return "\(value!) World"
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}

‎Playgrounds/03-Alamofire.playground/Sources/SupportCode.swift

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//
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// This file (and all other Swift source files in the Sources directory of this playground) will be precompiled into a framework which is automatically made available to 03-Alamofire.playground.
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//

‎Playgrounds/03-Alamofire.playground/contents.xcplayground

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<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
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<playground version='5.0' target-platform='osx'>
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<timeline fileName='timeline.xctimeline'/>
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</playground>

‎Playgrounds/03-Alamofire.playground/timeline.xctimeline

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<?xml version="1.0" encoding="UTF-8"?>
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<Timeline
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version = "3.0">
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<TimelineItems>
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<LoggerValueHistoryTimelineItem
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documentLocation = "#CharacterRangeLen=19&amp;CharacterRangeLoc=1785&amp;EndingColumnNumber=23&amp;EndingLineNumber=58&amp;StartingColumnNumber=9&amp;StartingLineNumber=58&amp;Timestamp=450426052.187599"
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selectedRepresentationIndex = "0"
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shouldTrackSuperviewWidth = "NO">
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</LoggerValueHistoryTimelineItem>
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<LoggerValueHistoryTimelineItem
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documentLocation = "#CharacterRangeLen=0&amp;CharacterRangeLoc=1804&amp;EndingColumnNumber=42&amp;EndingLineNumber=58&amp;StartingColumnNumber=9&amp;StartingLineNumber=58&amp;Timestamp=450426052.18781"
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selectedRepresentationIndex = "1"
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shouldTrackSuperviewWidth = "NO">
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</LoggerValueHistoryTimelineItem>
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<LoggerValueHistoryTimelineItem
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documentLocation = "#CharacterRangeLen=29&amp;CharacterRangeLoc=1776&amp;EndingColumnNumber=38&amp;EndingLineNumber=58&amp;StartingColumnNumber=9&amp;StartingLineNumber=58&amp;Timestamp=450426052.187982"
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selectedRepresentationIndex = "0"
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shouldTrackSuperviewWidth = "NO">
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</LoggerValueHistoryTimelineItem>
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<LoggerValueHistoryTimelineItem
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documentLocation = "#CharacterRangeLen=24&amp;CharacterRangeLoc=1743&amp;EndingColumnNumber=33&amp;EndingLineNumber=57&amp;StartingColumnNumber=9&amp;StartingLineNumber=57&amp;Timestamp=450426052.188093"
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selectedRepresentationIndex = "0"
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shouldTrackSuperviewWidth = "NO">
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</LoggerValueHistoryTimelineItem>
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</TimelineItems>
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</Timeline>

‎SwiftTask.xcworkspace/contents.xcworkspacedata

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