mirror of
https://github.com/LadybirdBrowser/ladybird.git
synced 2025-04-26 06:18:59 +00:00
b84f8fb55b
Some of these are allocated upon initialization of the intrinsics, and some lazily, but in neither case the getters actually return a nullptr. This saves us a whole bunch of pointer dereferences (as NonnullGCPtr has an `operator T&()`), and also has the interesting side effect of forcing us to explicitly use the FunctionObject& overload of call(), as passing a NonnullGCPtr is ambigous - it could implicitly be turned into a Value _or_ a FunctionObject& (so we have to dereference manually).
52 lines
2 KiB
C++
52 lines
2 KiB
C++
/*
|
|
* Copyright (c) 2022, David Tuin <davidot@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#include <LibJS/Runtime/AbstractOperations.h>
|
|
#include <LibJS/Runtime/DisposableStack.h>
|
|
#include <LibJS/Runtime/DisposableStackConstructor.h>
|
|
|
|
namespace JS {
|
|
|
|
DisposableStackConstructor::DisposableStackConstructor(Realm& realm)
|
|
: NativeFunction(realm.vm().names.DisposableStack.as_string(), realm.intrinsics().function_prototype())
|
|
{
|
|
}
|
|
|
|
ThrowCompletionOr<void> DisposableStackConstructor::initialize(Realm& realm)
|
|
{
|
|
auto& vm = this->vm();
|
|
MUST_OR_THROW_OOM(NativeFunction::initialize(realm));
|
|
|
|
// 26.2.2.1 DisposableStack.prototype, https://tc39.es/ecma262/#sec-finalization-registry.prototype
|
|
define_direct_property(vm.names.prototype, realm.intrinsics().disposable_stack_prototype(), 0);
|
|
|
|
define_direct_property(vm.names.length, Value(0), Attribute::Configurable);
|
|
|
|
return {};
|
|
}
|
|
|
|
// 11.3.1.1 DisposableStack ( ), https://tc39.es/proposal-explicit-resource-management/#sec-disposablestack
|
|
ThrowCompletionOr<Value> DisposableStackConstructor::call()
|
|
{
|
|
auto& vm = this->vm();
|
|
|
|
// 1. If NewTarget is undefined, throw a TypeError exception.
|
|
return vm.throw_completion<TypeError>(ErrorType::ConstructorWithoutNew, vm.names.DisposableStack);
|
|
}
|
|
|
|
// 11.3.1.1 DisposableStack ( ), https://tc39.es/proposal-explicit-resource-management/#sec-disposablestack
|
|
ThrowCompletionOr<NonnullGCPtr<Object>> DisposableStackConstructor::construct(FunctionObject& new_target)
|
|
{
|
|
auto& vm = this->vm();
|
|
|
|
// 2. Let disposableStack be ? OrdinaryCreateFromConstructor(NewTarget, "%DisposableStack.prototype%", « [[DisposableState]], [[DisposableResourceStack]] »).
|
|
// 3. Set disposableStack.[[DisposableState]] to pending.
|
|
// 4. Set disposableStack.[[DisposableResourceStack]] to a new empty List.
|
|
// 5. Return disposableStack.
|
|
return TRY(ordinary_create_from_constructor<DisposableStack>(vm, new_target, &Intrinsics::disposable_stack_prototype, Vector<DisposableResource> {}));
|
|
}
|
|
|
|
}
|