Accessing line number in V8 JavaScript (Chrome & Node.js)

gistfile1.js

// from http://stackoverflow.com/questions/11386492/accessing-line-number-in-v8-javascript-chrome-node-js/11386493#11386493

Object.defineProperty(global, '__stack', {
  get: function(){
    var orig = Error.prepareStackTrace;
    Error.prepareStackTrace = function(_, stack){ return stack; };
    var err = new Error;
    Error.captureStackTrace(err, arguments.callee);
    var stack = err.stack;
    Error.prepareStackTrace = orig;
    return stack;
  }
});

Object.defineProperty(global, '__line', {
  get: function(){
    return __stack[1].getLineNumber();
  }
});

console.log(__line); // show 21