esrefactor example

esrefactor.js

var esrefactor = require('esrefactor');
var code = require('./ast');
// function bar(){ var a; console.log("foo", a);}
var ctx = new esrefactor.Context(code.codeVariable);

var id = ctx.identify(21);
console.log("id", id);
//id { identifier: { type: 'Identifier', name: 'a', range: [ 20, 21 ] },
//  declaration: { type: 'Identifier', name: 'a', range: [ 20, 21 ] },
//  references: [ { type: 'Identifier', name: 'a', range: [Object] } ] }