test262/test/language/statements/await-using/syntax/await-using-invalid-assignment-next-expression-for.js
Ron Buckton 134a8eafba
[explicit-resource-management] Add remaining tests specific to await using statement syntax (#4481)
* Add remaining tests specific to await-using statement syntax

* PR feedback and minor fixes due to banning 'await using' in switch case/default

* Additional updates

* Fix comment formatting

* Fix esid

* Fix test implementation

* Fix error type in test
2025-11-04 09:04:25 -08:00

19 lines
658 B
JavaScript

// Copyright (C) 2023 Ron Buckton. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-declarative-environment-records-setmutablebinding-n-v-s
description: >
await using: invalid assignment in next expression. Since an `await using` declaration introduces an immutable
binding, any attempt to change it results in a TypeError.
flags: [async]
includes: [asyncHelpers.js]
features: [explicit-resource-management]
---*/
asyncTest(async function () {
await assert.throwsAsync(TypeError, async function() {
for (await using i = null; i === null; i = { [Symbol.dispose]() { } }) {}
});
});