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Last change
on this file since d565449 was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
Update repo after prototype presentation
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Property mode
set to
100644
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File size:
1007 bytes
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[d565449] | 1 | 'use strict';
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| 2 |
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| 3 | var $TypeError = require('es-errors/type');
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| 4 |
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| 5 | var $byteLength = require('array-buffer-byte-length');
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| 6 | var availableTypedArrays = require('available-typed-arrays')();
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| 7 | var callBound = require('call-bind/callBound');
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| 8 | var isArrayBuffer = require('is-array-buffer');
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| 9 | var isSharedArrayBuffer = require('is-shared-array-buffer');
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| 10 |
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| 11 | var $sabByteLength = callBound('SharedArrayBuffer.prototype.byteLength', true);
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| 12 |
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| 13 | // https://262.ecma-international.org/8.0/#sec-isdetachedbuffer
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| 14 |
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| 15 | module.exports = function IsDetachedBuffer(arrayBuffer) {
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| 16 | var isSAB = isSharedArrayBuffer(arrayBuffer);
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| 17 | if (!isArrayBuffer(arrayBuffer) && !isSAB) {
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| 18 | throw new $TypeError('Assertion failed: `arrayBuffer` must be an Object with an [[ArrayBufferData]] internal slot');
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| 19 | }
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| 20 | if ((isSAB ? $sabByteLength : $byteLength)(arrayBuffer) === 0) {
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| 21 | try {
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| 22 | new global[availableTypedArrays[0]](arrayBuffer); // eslint-disable-line no-new
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| 23 | } catch (error) {
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| 24 | return !!error && error.name === 'TypeError';
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| 25 | }
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| 26 | }
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| 27 | return false;
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| 28 | };
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