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