'use strict'; // Call this function in a another function to find out the file from // which that function was called from. (Inspects the v8 stack trace) // // Inspired by http://stackoverflow.com/questions/13227489 module.exports = function getCallerFile(_position) { var oldPrepareStackTrace = Error.prepareStackTrace; Error.prepareStackTrace = function(err, stack) { return stack; }; var stack = new Error().stack; Error.prepareStackTrace = oldPrepareStackTrace; var position = _position ? _position : 2; // stack[0] holds this file // stack[1] holds where this function was called // stack[2] holds the file we're interested in return stack[position] ? stack[position].getFileName() : undefined; };