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- 'use strict';
- var callBind = require('call-bind');
- var callBound = require('call-bind/callBound');
- var GetIntrinsic = require('get-intrinsic');
- var $ArrayBuffer = GetIntrinsic('%ArrayBuffer%', true);
- /** @type {undefined | ((receiver: ArrayBuffer) => number) | ((receiver: unknown) => never)} */
- var $byteLength = callBound('ArrayBuffer.prototype.byteLength', true);
- var $toString = callBound('Object.prototype.toString');
- // in node 0.10, ArrayBuffers have no prototype methods, but have an own slot-checking `slice` method
- var abSlice = !!$ArrayBuffer && !$byteLength && new $ArrayBuffer(0).slice;
- var $abSlice = !!abSlice && callBind(abSlice);
- /** @type {import('.')} */
- module.exports = $byteLength || $abSlice
- ? function isArrayBuffer(obj) {
- if (!obj || typeof obj !== 'object') {
- return false;
- }
- try {
- if ($byteLength) {
- // @ts-expect-error no idea why TS can't handle the overload
- $byteLength(obj);
- } else {
- // @ts-expect-error TS chooses not to type-narrow inside a closure
- $abSlice(obj, 0);
- }
- return true;
- } catch (e) {
- return false;
- }
- }
- : $ArrayBuffer
- // in node 0.8, ArrayBuffers have no prototype or own methods, but also no Symbol.toStringTag
- ? function isArrayBuffer(obj) {
- return $toString(obj) === '[object ArrayBuffer]';
- }
- : function isArrayBuffer(obj) { // eslint-disable-line no-unused-vars
- return false;
- };
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