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codeql-action/node_modules/es-abstract/2021/DetachArrayBuffer.js
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'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; | |
}; |