'use strict'; var GetIntrinsic = require('get-intrinsic'); var $SyntaxError = GetIntrinsic('%SyntaxError%'); var $TypeError = GetIntrinsic('%TypeError%'); var isArrayBuffer = require('is-array-buffer'); var isSharedArrayBuffer = require('is-shared-array-buffer'); var MessageChannel; try { // eslint-disable-next-line global-require MessageChannel = require('worker_threads').MessageChannel; } catch (e) { /**/ } // https://262.ecma-international.org/9.0/#sec-detacharraybuffer /* globals postMessage */ module.exports = function DetachArrayBuffer(arrayBuffer) { if (!isArrayBuffer(arrayBuffer) || isSharedArrayBuffer(arrayBuffer)) { throw new $TypeError('Assertion failed: `arrayBuffer` must be an Object with an [[ArrayBufferData]] internal slot, and not a Shared Array Buffer'); } // commented out since there's no way to set or access this key // var key = arguments.length > 1 ? arguments[1] : void undefined; // if (!SameValue(arrayBuffer[[ArrayBufferDetachKey]], key)) { // throw new $TypeError('Assertion failed: `key` must be the value of the [[ArrayBufferDetachKey]] internal slot of `arrayBuffer`'); // } 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; };