Extract caller function's filename on V8

get_caller_filename.js

var dummyObject = {};
Error.captureStackTrace(dummyObject, module.exports);
dummyObject.old_prepareStackTrace = Error.prepareStackTrace;
Error.prepareStackTrace = function (dummyObject, v8StackTrace) { return v8StackTrace;};
dummyObject.v8StackTrace = dummyObject.stack;
Error.prepareStackTrace = dummyObject.old_prepareStackTrace;
var caller_filename = dummyObject.v8StackTrace[0].getFileName().split(/\\/\/g).pop();