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- 'use strict';
- var $TypeError = require('es-errors/type');
- var $byteLength = require('array-buffer-byte-length');
- var availableTypedArrays = require('available-typed-arrays')();
- var callBound = require('call-bind/callBound');
- var isArrayBuffer = require('is-array-buffer');
- var isSharedArrayBuffer = require('is-shared-array-buffer');
- var $sabByteLength = callBound('SharedArrayBuffer.prototype.byteLength', true);
- // https://262.ecma-international.org/8.0/#sec-isdetachedbuffer
- module.exports = function IsDetachedBuffer(arrayBuffer) {
- var isSAB = isSharedArrayBuffer(arrayBuffer);
- if (!isArrayBuffer(arrayBuffer) && !isSAB) {
- throw new $TypeError('Assertion failed: `arrayBuffer` must be an Object with an [[ArrayBufferData]] internal slot');
- }
- if ((isSAB ? $sabByteLength : $byteLength)(arrayBuffer) === 0) {
- try {
- new global[availableTypedArrays[0]](arrayBuffer); // eslint-disable-line no-new
- } catch (error) {
- return !!error && error.name === 'TypeError';
- }
- }
- return false;
- };
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