glife/syntax/atom/qsp-package/node_modules/es6-weak-map/is-implemented.js

'use strict';

module.exports = function () {
	var map;
	if (typeof WeakMap !== 'function') return false;
	map = new WeakMap();
	if (typeof map.set !== 'function') return false;
	if (map.set({}, 1) !== map) return false;
	if (typeof map.clear !== 'function') return false;
	if (typeof map.delete !== 'function') return false;
	if (typeof map.has !== 'function') return false;

	return true;
};