Happy-Ferret / gmoonscript

Moonscript Compiler for the Gopher Lua VM

gmoonscript

Moonscript compiler for the Gopher Lua VM

Very experimental... use with caution. This module provides methods for compiling Moonscript code to Lua from Go or Lua (Gopher-Lua) programs. Additionally this repository contains an amalgamation bundle of the Moonscript Lua library (modified to use only pure-Lua modules) that can be used in Lua or LuaJIT programs without any external dependencies (see examples/pure_example.lua for usage).

See the godoc for documentation...

Installation

go get -v -u github.com/rucuriousyet/gmoonscript

Usage

Example usage from Gopher-Lua:

package main

import (
	"github.com/rucuriousyet/gmoonscript"
	lua "github.com/yuin/gopher-lua"
)

func main() {
	state := lua.NewState()
	state.PreloadModule("moonc", gmoonscript.Loader)

	err := state.DoString(`
local moonscript_code = [[
class Thing
  name: "unknown"

class Person extends Thing
  say_name: => print "Hello, I am #{@name}!"

with Person!
  .name = "MoonScript"
  \say_name!
]]

local moonc = require("moonc")

lua_code, err = moonc.compile(moonscript_code)
if err ~= nil then
	print(err)
else
	loadstring(lua_code)()
end
	`)
	if err != nil {
		panic(err)
	}
}

Example usage from Go

package main

import lua "github.com/yuin/gopher-lua"
import "github.com/rucuriousyet/gmoonscript"

func main() {
	state := lua.NewState()
	moonCode := `
class Thing
  name: "unknown"

class Person extends Thing
  say_name: => print "Hello, I am #{@name}!"

with Person!
  .name = "MoonScript"
  \say_name!
  `

	luaCode, err := gmoonscript.Compile(state, moonCode)
	if err != nil {
		panic(err)
	}

	err = state.DoString(luaCode)
	if err != nil {
		panic(err)
	}
}