New Way Of Working Around With Closures.

Related tags

Concurrency swift ios xcode concurrency foundation closure dispatchqueue property-wrapper
Overview

Closured

Swift Platforms CocoaPods Compatible Twitter Build Status

New Way Of Working Around With Closures.

Are you tired of old-school callback closures?

Are you always mess up with capturing references on async closures?

Then Using Closured Will Bring You New Style.

Features

  • Use propertyWrapper To Wrap Closure
  • Captures Weak References Inside Closure
  • Perform Closure On Different Queues
  • Fully Error Handled On Performing Closure
  • Fully Documented With DocC
  • Provide UnitTest

Requirements

Platform Minimum Swift Version Installation Status
iOS 9.0+ 5.3 CocoaPods Tested

Installation

CocoaPods

CocoaPods is a dependency manager for Cocoa projects. For usage and installation instructions, visit their website. To integrate Closured into your Xcode project using CocoaPods, specify it in your Podfile:

pod 'Closured'

Sample

I have provided one sample project in the repository. To use it clone the repo, Source files for these are in the Example directory in project navigator. Have fun!

Usage

Using Closured is so easy, It uses PropertyWrapper in swift.

You just need to annotate your closures with provided Wrappers.

import Closured

class Example {

	// provide queue or the default is main
	// all the method without queue will use this queue to perform
	@Closured(queue: .main) var voidCallBack: (() -> Void)?
	
	@Closured10(queue: .main) var intCallBack: ((Int) -> Void)?
	
	private func call() {
		try? voidCallBack.sync() // perform on Main Queue
		
		try? voidCallBack.sync(on: .global(.background)) // perform on global Queue
		
		try? voidCallBack.async() // perform on Main Queue
		
		try? voidCallBack.async(on: .global(.utility)) 
		
		
		try? intCallBack.sync(on: .global(.utility), 89) 
		
		try? intCallBack.async(10) // perform on Main Queue
	}
}

class Container {
	
	private let ref = Example()
	
	func bind() {
		ref.$voidCallBack.byWrapping(self) { strongSelf in
			// strongSelf is unwrapped reference to self
			// self is not retained
			// this closure won't be executed if self was deallocated
		}
		
		ref.$intCallBack.byWrapping(self) { strongSelf, integer in
			// strongSelf is unwrapped reference to self
			// self is not retained
			// this closure won't be executed if self was deallocated
			// this closure will be called twice in two different queue, and provide 2 numbers = 89 and 10 
		}
	}
}

Contributors

Feel free to share your ideas or any other problems. Pull requests are welcomed.

License

CocoAttributedStringBuilder is released under an MIT license. See LICENSE for more information.

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