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// |reftest| shell-option(--enable-explicit-resource-management) skip-if(!(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('explicit-resource-management'))||!xulRuntime.shell) async -- explicit-resource-management is not enabled unconditionally, requires shell-options
// Copyright (C) 2023 Ron Buckton. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-let-and-const-declarations-runtime-semantics-evaluation
description: Assignment of function `name` attribute (FunctionExpression)
info: |
LexicalBinding : BindingIdentifier Initializer
...
3. If IsAnonymousFunctionDefinition(Initializer) is true, then
a. Let value be NamedEvaluation of Initializer with argument bindingId
flags: [async]
includes: [propertyHelper.js, asyncHelpers.js]
features: [explicit-resource-management]
---*/
// NOTE: only way to verify is to patch `Function.prototype` so as not to trigger a TypeError from AddDisposableResource
Function.prototype[Symbol.dispose] = function () {}
asyncTest(async function() {
await using xFn = function x() {};
await using fn = function() {};
assert(xFn.name !== 'xFn');
assert.sameValue(fn.name, 'fn');
verifyNotEnumerable(fn, 'name');
verifyNotWritable(fn, 'name');
verifyConfigurable(fn, 'name');
});