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LibJS: Bring the explicit resource management implementation up to date

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While we don't yet have a working `using` implementation with our byte
code, we can still keep our DisposableStack implementation up to date.
The changes brought in here are all editorial, and set us up to start
an AsyncDisposableStack implementation.
This commit is contained in:
Timothy Flynn 2025-01-16 16:51:26 -05:00 • committed by Andreas Kling
commit 5ea0aa5f08
Notes: github-actions[bot] 2025-01-17 19:47:35 +00:00
12 changed files with 375 additions and 258 deletions
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13
Libraries/LibJS/Runtime/DisposableStackConstructor.cpp
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@ -1,5 +1,6 @@
/*
* Copyright (c) 2022, David Tuin <davidot@serenityos.org>
* Copyright (c) 2025, Tim Flynn <trflynn89@ladybird.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
@ -22,13 +23,13 @@ void DisposableStackConstructor::initialize(Realm& realm)
auto& vm = this->vm();
Base::initialize(realm);
// 26.2.2.1 DisposableStack.prototype, https://tc39.es/ecma262/#sec-finalization-registry.prototype
// 12.3.2.1 DisposableStack.prototype, https://tc39.es/proposal-explicit-resource-management/#sec-disposablestack.prototype
define_direct_property(vm.names.prototype, realm.intrinsics().disposable_stack_prototype(), 0);
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
}
// 11.3.1.1 DisposableStack ( ), https://tc39.es/proposal-explicit-resource-management/#sec-disposablestack
// 12.3.1.1 DisposableStack ( ), https://tc39.es/proposal-explicit-resource-management/#sec-disposablestack
ThrowCompletionOr<Value> DisposableStackConstructor::call()
{
auto& vm = this->vm();
@ -37,16 +38,16 @@ ThrowCompletionOr<Value> DisposableStackConstructor::call()
return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, vm.names.DisposableStack);
}
// 11.3.1.1 DisposableStack ( ), https://tc39.es/proposal-explicit-resource-management/#sec-disposablestack
// 12.3.1.1 DisposableStack ( ), https://tc39.es/proposal-explicit-resource-management/#sec-disposablestack
ThrowCompletionOr<GC::Ref<Object>> DisposableStackConstructor::construct(FunctionObject& new_target)
{
auto& vm = this->vm();
// 2. Let disposableStack be ? OrdinaryCreateFromConstructor(NewTarget, "%DisposableStack.prototype%", « [[DisposableState]], [[DisposableResourceStack]] »).
// 2. Let disposableStack be ? OrdinaryCreateFromConstructor(NewTarget, "%DisposableStack.prototype%", « [[DisposableState]], [[DisposeCapability]] »).
// 3. Set disposableStack.[[DisposableState]] to pending.
// 4. Set disposableStack.[[DisposableResourceStack]] to a new empty List.
// 4. Set disposableStack.[[DisposeCapability]] to NewDisposeCapability().
// 5. Return disposableStack.
return TRY(ordinary_create_from_constructor<DisposableStack>(vm, new_target, &Intrinsics::disposable_stack_prototype, Vector<DisposableResource> {}));
return TRY(ordinary_create_from_constructor<DisposableStack>(vm, new_target, &Intrinsics::disposable_stack_prototype, new_dispose_capability()));
}
}