arkcompiler_ets_runtime/ecmascript/js_finalization_registry.h
weng-xi 73f39aa7f3 AOT Supports VTable [PART_1]
1. Add fours fields to jshclass [LEVEL, SUPERS]
2. Add VTable class
3. Adjust type parser and TSHClass generation logic
4. Extended the weakvector class
5. Add SubtypeingOperator class

Issue: https://gitee.com/open_harmony/dashboard?issue_id=I6FVAJ
Signed-off-by: weng-xi <wengxi1@huawei.com>
Change-Id: I6640f3719fa067f505befd0f2cb0efb99d179dfc
2023-03-16 19:07:49 +08:00

97 lines
3.6 KiB
C++

/*
* 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_JS_FINALIZATION_REGISTRY_H
#define ECMASCRIPT_JS_FINALIZATION_REGISTRY_H
#include "ecmascript/js_object.h"
#include "ecmascript/record.h"
#include "ecmascript/weak_vector.h"
namespace panda::ecmascript {
class CheckAndCallScope {
public:
explicit CheckAndCallScope(JSThread *thread) : thread_(thread)
{
thread_->SetCheckAndCallEnterState(true);
}
~CheckAndCallScope()
{
thread_->SetCheckAndCallEnterState(false);
}
private:
JSThread *thread_;
};
class CellRecord final : public Record {
public:
CAST_CHECK(CellRecord, IsCellRecord);
void SetToWeakRefTarget(JSThread *thread, JSTaggedValue value)
{
JSTaggedValue weakObj = JSTaggedValue(value.CreateAndGetWeakRef());
ASSERT(weakObj.IsWeak());
SetWeakRefTarget(thread, weakObj);
}
JSTaggedValue GetFromWeakRefTarget() const
{
JSTaggedValue weakObj = GetWeakRefTarget();
if (!weakObj.IsUndefined()) {
return JSTaggedValue(weakObj.GetWeakReferent());
}
return weakObj;
}
static constexpr size_t WEAKREF_TARGET_OFFSET = Record::SIZE;
ACCESSORS(WeakRefTarget, WEAKREF_TARGET_OFFSET, HELD_VALUE_OFFSET)
ACCESSORS(HeldValue, HELD_VALUE_OFFSET, SIZE)
DECL_VISIT_OBJECT(WEAKREF_TARGET_OFFSET, SIZE)
DECL_DUMP()
};
class CellRecordVector : public WeakVector {
public:
static CellRecordVector *Cast(TaggedObject *object)
{
return static_cast<CellRecordVector *>(object);
}
static JSHandle<CellRecordVector> Append(const JSThread *thread, const JSHandle<CellRecordVector> &vector,
const JSHandle<JSTaggedValue> &value);
bool IsEmpty();
};
class JSFinalizationRegistry : public JSObject {
public:
CAST_CHECK(JSFinalizationRegistry, IsJSFinalizationRegistry);
static void Register(JSThread *thread, JSHandle<JSTaggedValue> target, JSHandle<JSTaggedValue> heldValue,
JSHandle<JSTaggedValue> unregisterToken, JSHandle<JSFinalizationRegistry> obj);
static bool Unregister(JSThread *thread, JSHandle<JSTaggedValue> UnregisterToken,
JSHandle<JSFinalizationRegistry> obj);
static void CheckAndCall(JSThread *thread);
static bool CleanupFinalizationRegistry(JSThread *thread, JSHandle<JSFinalizationRegistry> obj);
static void AddFinRegLists(JSThread *thread, JSHandle<JSFinalizationRegistry> next);
static void CleanFinRegLists(JSThread *thread, JSHandle<JSFinalizationRegistry> obj);
static constexpr size_t CLEANUP_CALLBACK_OFFSET = JSObject::SIZE;
ACCESSORS(CleanupCallback, CLEANUP_CALLBACK_OFFSET, NO_UNREGISTER_OFFSET)
ACCESSORS(NoUnregister, NO_UNREGISTER_OFFSET, MAYBE_UNREGISTER_OFFSET)
ACCESSORS(MaybeUnregister, MAYBE_UNREGISTER_OFFSET, NEXT_OFFSET)
ACCESSORS(Next, NEXT_OFFSET, PREV_OFFSET)
ACCESSORS(Prev, PREV_OFFSET, SIZE)
DECL_VISIT_OBJECT_FOR_JS_OBJECT(JSObject, CLEANUP_CALLBACK_OFFSET, SIZE)
DECL_DUMP()
};
} // namespace
#endif // ECMASCRIPT_JS_FINALIZATION_REGISTRY_H