caller.js - mozsearch

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'use strict';

var $Error = require('es-errors');

module.exports = function () {

    // see https://code.google.com/p/v8/wiki/JavaScriptStackTraceApi

    var origPrepareStackTrace = $Error.prepareStackTrace;

    $Error.prepareStackTrace = function (_, stack) { return stack; };

    var stack = (new $Error()).stack;

    $Error.prepareStackTrace = origPrepareStackTrace;

    return stack[2].getFileName();

};