lix-website/themes/lix/assets/bootstrap/node_modules/es-abstract/2015/DetachArrayBuffer.js
2024-04-26 22:49:34 -06:00

39 lines
1.2 KiB
JavaScript

'use strict';
var $SyntaxError = require('es-errors/syntax');
var $TypeError = require('es-errors/type');
var isArrayBuffer = require('is-array-buffer');
var IsDetachedBuffer = require('./IsDetachedBuffer');
var MessageChannel;
try {
// eslint-disable-next-line global-require
MessageChannel = require('worker_threads').MessageChannel; // node 11.7+
} catch (e) { /**/ }
// https://262.ecma-international.org/6.0/#sec-detacharraybuffer
/* globals postMessage */
module.exports = function DetachArrayBuffer(arrayBuffer) {
if (!isArrayBuffer(arrayBuffer)) {
throw new $TypeError('Assertion failed: `arrayBuffer` must be an Object with an [[ArrayBufferData]] internal slot');
}
if (!IsDetachedBuffer(arrayBuffer)) { // node v21.0.0+ throws when you structuredClone a detached buffer
if (typeof structuredClone === 'function') {
structuredClone(arrayBuffer, { transfer: [arrayBuffer] });
} else if (typeof postMessage === 'function') {
postMessage('', '/', [arrayBuffer]); // TODO: see if this might trigger listeners
} else if (MessageChannel) {
(new MessageChannel()).port1.postMessage(null, [arrayBuffer]);
} else {
throw new $SyntaxError('DetachArrayBuffer is not supported in this environment');
}
}
return null;
};