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