rajikaimal / goruby

GoRuby, an implementation of Ruby written in Go

chidori

This project is based on the wonderful work done by GoRuby project

This is the implementation to support the work presented in my MSc Thesis

GoRuby, an implementation of Ruby written in Go. This repository contains compiler for subset of GoRuby.

$ go build chidori.go
$ ./chidori compiled <rubyfile.rb>
$ ./chidori run compiled.go

Example

Ruby source code

class Customer
		def initialize()
			@name = "Rajika"
		end
end
i = 0
a = 100

while i < a do
	i = i + 1
	class Customer
		attr_accessor :street
	end
	cust = Customer.new()
	cust.street = "5th Street"
	def cust.getStreet
			puts(@street)
	end
  cust.getStreet()
end

Transpiled Go code

package main

import "github.com/goruby/goruby/object"
import "github.com/goruby/goruby/chidorilib"

func main() {
	env := object.NewMainEnvironment()
	_, _ = env.Get("")

	methodHashMap := make(map[string]chidorilib.Method)

	v1 := chidorilib.Method{
		"initialize",
		"Customer",
		nil,
	}

	v1.Body = func(o chidorilib.Object) {
		o.SetInstanceVariables("@name", "Rajika")
	}

	methodHashMap["initialize"] = v1

	programValuesList := chidorilib.Value{}

	v2 := make(map[string]string)
	v3 := chidorilib.Class{
		ClassName:      "Customer",
		ClassVariables: v2,
		Methods:        methodHashMap,
	}

	programValuesList.Class = make(map[string]chidorilib.Class)
	programValuesList.Object = make(map[string]chidorilib.Object)
	programValuesList.Class["Customer"] = v3

	v4 := object.NewInteger(0)
	env.Set("i", v4)

	v5 := object.NewInteger(100)
	env.Set("a", v5)
	i, _ := env.Get("i")

	a, _ := env.Get("a")

	aVal, _ := a.(*object.Integer)

	iVal, _ := i.(*object.Integer)

	for iVal.Value < aVal.Value {

		i, _ := env.Get("i")

		v6 := object.NewInteger(1)
		iVal_ := i.(*object.Integer)
		iVal = iVal_
		v7 := iVal_.Value + v6.Value
		env.Set("i", &object.Integer{Value: v7})

		v8 := programValuesList.Class["Customer"]
		v8.SetInstanceVariable("@street")

		v9 := programValuesList.Class["Customer"]

		v10 := v9.Call("cust")
		programValuesList.Object["cust"] = v10

		v11 := programValuesList.Object["cust"]
		v11.SetInstanceVariableDy(v11.Class, "@street", "5th Street")
		iov12 := chidorilib.IO{Puts: v11.GetInstanceVariables()}
		iov12.Out()

		v13 := chidorilib.Method{
			"getStreet",
			"main",
			nil,
		}

		v13.Body = func(o chidorilib.Object) {

			chidorilib.IO{Puts: o.GetInstanceVariableByName("@street")}.Out()

		}

		methodHashMap["getStreet"] = v13

		v14 := programValuesList.Object["cust"]
		v14.Invoke("getStreet")

	}
}

MIT