25 lines
671 B
JavaScript
25 lines
671 B
JavaScript
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'use strict';
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var callBound = require('call-bound');
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/** @type {undefined | ((thisArg: SharedArrayBuffer) => number)} */
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var $byteLength = callBound('SharedArrayBuffer.prototype.byteLength', true);
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/** @type {import('.')} */
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module.exports = $byteLength
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? function isSharedArrayBuffer(obj) {
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if (!obj || typeof obj !== 'object') {
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return false;
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}
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try {
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// @ts-expect-error TS can't figure out this closed-over variable is non-nullable, and it's fine that `obj` might not be a SAB
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$byteLength(obj);
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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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: function isSharedArrayBuffer(_obj) { // eslint-disable-line no-unused-vars
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return false;
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};
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