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25 lines
826 B
25 lines
826 B
'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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