Basic js obfuscator written in go

package main

import (
	"strconv"

	"github.com/google/go-js-transform/transform"
	"github.com/google/go-js-transform/js/parser"
	"github.com/google/go-js-transform/js/printer"
	"github.com/google/go-js-transform/passes/replace"
	"github.com/google/go-js-transform/passes/rename"
)

var (
	transforms = []transform.Transform{
		rename.NewRenamer(),
		replace.NewReplacer(),
	}
)

func main() {
	p := parser.New()
	for _, t := range transforms {
		p.AddTransform(t)
	}
	pr := printer.Config{
		Indent:     "  ",
		LineLength: 80,
	}

	code := `
	function add(a, b) {
		return a + b;
	}
	`
	node,