aaac7fed
 liuqimichale
add
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'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;
};
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