15 lines
320 B
JavaScript
15 lines
320 B
JavaScript
|
'use strict';
|
||
|
|
||
|
var global = require('es5-ext/global')
|
||
|
, polyfill = require('../polyfill');
|
||
|
|
||
|
module.exports = function (t, a) {
|
||
|
var cache;
|
||
|
a(typeof t(), 'boolean');
|
||
|
cache = global.WeakMap;
|
||
|
global.WeakMap = polyfill;
|
||
|
a(t(), true);
|
||
|
if (cache === undefined) delete global.WeakMap;
|
||
|
else global.WeakMap = cache;
|
||
|
};
|