go-quickjs

QuickJS engine bindings for Go.

Warning: At present, both the original project quickjs and this project are still in the early stage of development. Please use this project carefully in the production environment.

Features

Evaluate script
Evaluate bytecode in []byte
Compile script into bytecode in []byte
Simple exception throwing and catching
Invoke Go function from JavaScript
Operate JavaScript values and objects in Go

Get Started

Install: (MacOS tested only)

wget https://raw.github.com/wspl/go-quickjs/master/install.sh && sh ./install.sh

Hello world:

package main

import "github.com/wspl/go-quickjs"

func main() {
	runtime := quickjs.NewJSRuntime()
	defer runtime.Free()
	context := runtime.NewContext()
	defer context.Free()

	ret, err := context.Eval("'Hello ' + 'World!'", "")
	if err != nil {
		println(err.Message())
	}
	println(ret.String())
}

Invoke Go function in JavaScript:

package main

import . "github.com/wspl/go-quickjs"

func main() {
	runtime := NewJSRuntime()
	defer runtime.Free()
	context := runtime.NewContext()
	defer context.Free()

	fn := context.NewGoFunction(func(args []*JSValue, this *JSValue) (*JSValue, *JSError) {
		println("Invoked!")
		return context.NewString("Hello World"), nil
	})
	fn.Value().Expose("hello")
	ret, err := context.Eval("hello()", "")
	if err != nil {
		println(err.Message())
	}
	println(ret.String())
}

TODOs

Test cases
Module support
Fix bugs

License

MIT

License

wspl/go-quickjs

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