hexo/node_modules/es-abstract/2021/WeakRefDeref.js

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2023-09-25 15:58:56 +08:00
'use strict';
var GetIntrinsic = require('get-intrinsic');
var callBound = require('call-bind/callBound');
var $TypeError = GetIntrinsic('%TypeError%');
var $deref = callBound('WeakRef.prototype.deref', true);
var isWeakRef = require('is-weakref');
var AddToKeptObjects = require('./AddToKeptObjects');
// https://262.ecma-international.org/12.0/#sec-weakrefderef
module.exports = function WeakRefDeref(weakRef) {
if (!isWeakRef(weakRef)) {
throw new $TypeError('Assertion failed: `weakRef` must be a WeakRef');
}
var target = $deref(weakRef);
if (target) {
AddToKeptObjects(target);
}
return target;
};