ladybird/Userland/Libraries/LibJS/Runtime/AsyncFunctionDriverWrapper.h
Andreas Kling 3dc5f467a8 LibJS: Always allocate ExecutionContext objects on the malloc heap
Instead of allocating these in a mixture of ways, we now always put
them on the malloc heap, and keep an intrusive linked list of them
that we can iterate for GC marking purposes.
2023-11-29 09:48:18 +01:00

45 lines
1.3 KiB
C++

/*
* Copyright (c) 2021, Ali Mohammad Pur <mpfard@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibJS/Bytecode/Interpreter.h>
#include <LibJS/Runtime/ECMAScriptFunctionObject.h>
#include <LibJS/Runtime/GeneratorObject.h>
#include <LibJS/Runtime/Object.h>
#include <LibJS/Runtime/Promise.h>
namespace JS {
class AsyncFunctionDriverWrapper final : public Promise {
JS_OBJECT(AsyncFunctionDriverWrapper, Promise);
JS_DECLARE_ALLOCATOR(AsyncFunctionDriverWrapper);
public:
enum class IsInitialExecution {
No,
Yes,
};
[[nodiscard]] static NonnullGCPtr<Promise> create(Realm&, GeneratorObject*);
virtual ~AsyncFunctionDriverWrapper() override = default;
void visit_edges(Cell::Visitor&) override;
void continue_async_execution(VM&, Value, bool is_successful, IsInitialExecution is_initial_execution = IsInitialExecution::No);
private:
AsyncFunctionDriverWrapper(Realm&, NonnullGCPtr<GeneratorObject>, NonnullGCPtr<Promise> top_level_promise);
ThrowCompletionOr<void> await(Value);
NonnullGCPtr<GeneratorObject> m_generator_object;
NonnullGCPtr<Promise> m_top_level_promise;
GCPtr<Promise> m_current_promise { nullptr };
Handle<AsyncFunctionDriverWrapper> m_self_handle;
OwnPtr<ExecutionContext> m_suspended_execution_context;
};
}