main
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Last change
on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
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Update repo after prototype presentation
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File size:
573 bytes
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| [d565449] | 1 | 'use strict';
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| 2 |
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| 3 | var callBound = require('call-bind/callBound');
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| 4 |
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| 5 | var $TypeError = require('es-errors/type');
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| 6 | var $deref = callBound('WeakRef.prototype.deref', true);
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| 7 |
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| 8 | var isWeakRef = require('is-weakref');
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| 9 |
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| 10 | var AddToKeptObjects = require('./AddToKeptObjects');
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| 11 |
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| 12 | // https://262.ecma-international.org/12.0/#sec-weakrefderef
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| 13 |
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| 14 | module.exports = function WeakRefDeref(weakRef) {
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| 15 | if (!isWeakRef(weakRef)) {
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| 16 | throw new $TypeError('Assertion failed: `weakRef` must be a WeakRef');
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| 17 | }
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| 18 | var target = $deref(weakRef);
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| 19 | if (target) {
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| 20 | AddToKeptObjects(target);
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| 21 | }
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| 22 | return target;
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| 23 | };
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