ladybird/Userland/Libraries/LibJS/Runtime/PromiseResolvingFunction.h

47 lines
1.3 KiB
C++

/*
* Copyright (c) 2021-2022, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/StringView.h>
#include <LibJS/Runtime/NativeFunction.h>
namespace JS {
struct AlreadyResolved final : public Cell {
bool value { false };
virtual StringView class_name() const override { return "AlreadyResolved"sv; }
protected:
// Allocated cells must be >= sizeof(FreelistEntry), which is 24 bytes -
// but AlreadyResolved is only 16 bytes without this.
u8 dummy[8];
};
class PromiseResolvingFunction final : public NativeFunction {
JS_OBJECT(PromiseResolvingFunction, NativeFunction);
public:
using FunctionType = Function<ThrowCompletionOr<Value>(VM&, Promise&, AlreadyResolved&)>;
static PromiseResolvingFunction* create(Realm&, Promise&, AlreadyResolved&, FunctionType);
explicit PromiseResolvingFunction(Promise&, AlreadyResolved&, FunctionType, Object& prototype);
virtual void initialize(Realm&) override;
virtual ~PromiseResolvingFunction() override = default;
virtual ThrowCompletionOr<Value> call() override;
private:
virtual void visit_edges(Visitor&) override;
Promise& m_promise;
AlreadyResolved& m_already_resolved;
FunctionType m_native_function;
};
}