26 lines
826 B
Plaintext
26 lines
826 B
Plaintext
'use strict';
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var callBound = require('call-bound');
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/** @type {undefined | ((value: ThisParameterType<typeof FinalizationRegistry.prototype.register>, ...args: Parameters<typeof FinalizationRegistry.prototype.register>) => ReturnType<typeof FinalizationRegistry.prototype.register>)} */
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var $register = callBound('FinalizationRegistry.prototype.register', true);
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/** @type {import('.')} */
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module.exports = $register
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? function isFinalizationRegistry(value) {
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if (!value || typeof value !== 'object') {
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return false;
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}
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try {
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// @ts-expect-error TS can't figure out that it's always truthy here
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$register(value, {}, null);
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return true;
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} catch (e) {
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return false;
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}
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}
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// @ts-ignore unused var
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: function isFinalizationRegistry(value) { // eslint-disable-line no-unused-vars
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return false;
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};
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