/*
 * Copyright (c) 2022 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef ECMASCRIPT_MEM_VISITOR_H
#define ECMASCRIPT_MEM_VISITOR_H

#include <functional>

#include <ecmascript/mem/slots.h>
#include <ecmascript/mem/tagged_object.h>

namespace panda::ecmascript {
enum class Root {
    ROOT_FRAME,
    ROOT_HANDLE,
    ROOT_VM,
    ROOT_STRING,
    ROOT_INTERNAL_CALL_PARAMS,
};

enum class VisitObjectArea {
    NORMAL,
    NATIVE_POINTER,
    IN_OBJECT
};

enum class VisitType : size_t { SEMI_GC_VISIT, OLD_GC_VISIT, SNAPSHOT_VISIT };

using RootVisitor = std::function<void(Root type, ObjectSlot p)>;
using RootRangeVisitor = std::function<void(Root type, ObjectSlot start, ObjectSlot end)>;
using RootBaseAndDerivedVisitor =
    std::function<void(Root type, ObjectSlot base, ObjectSlot derived, uintptr_t baseOldObject)>;
using EcmaObjectRangeVisitor = std::function<void(TaggedObject *root, ObjectSlot start, ObjectSlot end,
                                                  VisitObjectArea area)>;
using WeakRootVisitor = std::function<TaggedObject *(TaggedObject *p)>;
}  // namespace panda::ecmascript
#endif  // ECMASCRIPT_MEM_VISITOR_H