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34 lines (27 sloc) 1.11 KB
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $SyntaxError = GetIntrinsic('%SyntaxError%');
var $TypeError = GetIntrinsic('%TypeError%');
var isArrayBuffer = require('is-array-buffer');
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 (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;
};