Embed a scripting language inside Go

Question

Is it possible to embed a language inside Go? I need it to create plugins inside my application.

Answer 1

I found the list on Virtual Machines and Languages.

• Gelo - Extensible, embeddable interpreter
• GoForth - A simple Forth parser
• GoLightly - A flexible and lightweight virtual machine with runtime-configurable instruction set
• Golog - Prolog interpreter in Go
• Minima - A language implemented in Go.
• RubyGoLightly - An experimental port of TinyRb to Go
• forego - Forth virtual machine
• go-python - go bindings for CPython C-API
• GoEmPHP - This package is built for Embedding PHP into Go.
• goenv - Create an isolated environment where you install Go packages, binaries, or even C libraries. Very similar to virtualenv for Python.
• golemon - A port of the Lemon parser-generator
• goll1e - An LL(1) parser generator for the Go programming language.
• golua - Go wrapper for LUA's C API
• golua-fork - A fork of GoLua that works on current releases of Go
• gotcl - Tcl interpreter in Go
• meme - Scheme interpreter in Go
• ngaro - An ngaro virtual machine to run retroForth images
• otto - A JavaScript parser and interpreter written natively in Go
• monkey - Embed SpiderMonkey, the Mozilla JavaScript engine, in your Go program.
• go-v8 - V8 JavaScript engine bindings for Go
• gomruby - mruby (mini Ruby) bindings for Go
• LispEx - A dialect of Lisp extended to support for concurrent programming, written in Go.

Update:

• Tengo - a small, dynamic, fast, secure script language for Go. (similar syntax with Go)
• glua, GoLuaJit, gijit, and others - LuaJIT, one of fastest JIT implementation
• Elsa - Typescript and Javascript, based on QuickJS, same person who creates qemu, ffmpeg, tcc

Answer 2

goja - ECMAScript 5.1(+) implementation in Go.

Answer 3

At the first, I'll explain cgo. Go provides API to export values into C language.

http://golang.org/cmd/cgo/

For example, you can export string as char* like below.

package main

/*
#include <stdio.h>
static void myputs(char* s) {
    puts(s);
}
*/
import "C"

func main() {
    s := "hello world"
    C.myputs(C.CString(s))
}

So you need to write functions to access C library. But there are some packages to use script languages. See:

https://github.com/mattn/go-mruby

https://github.com/mattn/go-v8

Or if you don't want to use C language. You can use native go language like otto

https://github.com/robertkrimen/otto

https://github.com/mattn/anko