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GoSwift - Go Goodies for Swift

Bring some of the more powerful features of Go to your iOS / Swift project such as channels, goroutines, and defers.

This is an experimental project. For production use of channels and sync APIs, check out the Safe project.

Built for Swift 2.0 - For Swift 1.2 support use v0.1.4 or earlier.

Features

Goroutines
Defer
Panic, Recover
Channels
- Buffered Channels
- Select, Case, Default
- Closing
Sync Package
- Mutex, Cond, Once, WaitGroup

Example

Note that the following example and all of the examples in the examples directory originated from http://gobyexample.com and Mark McGranaghan

package main

import "fmt"

func main() {
	jobs := make(chan int, 5)
	done := make(chan bool)

	go func() {
		for {
			j, more := <-jobs
			if more {
				fmt.Println("received job", j)
			} else {
				fmt.Println("received all jobs")
				done <- true
				return
			}
		}
	}()

	for j := 1; j <= 3; j++ {
		jobs <- j
		fmt.Println("sent job", j)
	}
	close(jobs)
	fmt.Println("sent all jobs")

	<-done
}

Swift

func main() {
	var jobs = Chan<Int>(5)
	var done = Chan<Bool>()

	go {
		for ;; {
			var (j, more) = <?jobs
			if more {
				println("received job \(j!)")
			} else {
				println("received all jobs")
				done <- true
				return
			}
		}
	}

	for var j = 1; j <= 3; j++ {
		jobs <- j
		println("sent job \(j)")
	}
	close(jobs)
	println("sent all jobs")

	<-done
}

Run an Example

Each example has a .swift and .go file that contain the same logic.

./run.sh examples/goroutines.swift
./run.sh examples/goroutines.go

Installation (iOS and OS X)

Carthage

Add the following to your Cartfile:

github "tidwall/GoSwift"

Then run carthage update.

Follow the current instructions in Carthage's README for up to date installation instructions.

The import GoSwift directive is required in order to access GoSwift features.

CocoaPods

Add the following to your Podfile:

use_frameworks!
pod 'GoSwift'

Then run pod install with CocoaPods 0.36 or newer.

The import GoSwift directive is required in order to access GoSwift features.

Manually

Copy the GoSwift\go.swift file into your project.

There is no need for import GoSwift when manually installing.

Contact

Josh Baker @tidwall

License

The GoSwift source code available under the MIT License.

The Go source code in the examples directory is copyright Mark McGranaghan and licensed under a Creative Commons Attribution 3.0 Unported License.

The Swift version of the example code is by Josh Baker

License

tidwall/GoSwift

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