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/*
* Copyright (C) 2024 The Android Open Source Project
*
* 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 ART_COMPILER_OPTIMIZING_HANDLE_CACHE_H_
#define ART_COMPILER_OPTIMIZING_HANDLE_CACHE_H_
#include "base/macros.h"
#include "class_root.h"
#include "reference_type_info.h"
namespace art HIDDEN {
class VariableSizedHandleScope;
class HandleCache {
public:
explicit HandleCache(VariableSizedHandleScope* handles) : handles_(handles) { }
VariableSizedHandleScope* GetHandles() { return handles_; }
template <typename T>
MutableHandle<T> NewHandle(T* object) REQUIRES_SHARED(Locks::mutator_lock_);
template <typename T>
MutableHandle<T> NewHandle(ObjPtr<T> object) REQUIRES_SHARED(Locks::mutator_lock_);
ReferenceTypeInfo::TypeHandle GetObjectClassHandle() {
return GetRootHandle(ClassRoot::kJavaLangObject, &object_class_handle_);
}
ReferenceTypeInfo::TypeHandle GetClassClassHandle() {
return GetRootHandle(ClassRoot::kJavaLangClass, &class_class_handle_);
}
ReferenceTypeInfo::TypeHandle GetMethodHandleClassHandle() {
return GetRootHandle(ClassRoot::kJavaLangInvokeMethodHandleImpl, &method_handle_class_handle_);
}
ReferenceTypeInfo::TypeHandle GetMethodTypeClassHandle() {
return GetRootHandle(ClassRoot::kJavaLangInvokeMethodType, &method_type_class_handle_);
}
ReferenceTypeInfo::TypeHandle GetStringClassHandle() {
return GetRootHandle(ClassRoot::kJavaLangString, &string_class_handle_);
}
ReferenceTypeInfo::TypeHandle GetThrowableClassHandle() {
return GetRootHandle(ClassRoot::kJavaLangThrowable, &throwable_class_handle_);
}
private:
inline ReferenceTypeInfo::TypeHandle GetRootHandle(ClassRoot class_root,
ReferenceTypeInfo::TypeHandle* cache) {
if (UNLIKELY(!ReferenceTypeInfo::IsValidHandle(*cache))) {
*cache = CreateRootHandle(handles_, class_root);
}
return *cache;
}
static ReferenceTypeInfo::TypeHandle CreateRootHandle(VariableSizedHandleScope* handles,
ClassRoot class_root);
VariableSizedHandleScope* handles_;
ReferenceTypeInfo::TypeHandle object_class_handle_;
ReferenceTypeInfo::TypeHandle class_class_handle_;
ReferenceTypeInfo::TypeHandle method_handle_class_handle_;
ReferenceTypeInfo::TypeHandle method_type_class_handle_;
ReferenceTypeInfo::TypeHandle string_class_handle_;
ReferenceTypeInfo::TypeHandle throwable_class_handle_;
};
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_HANDLE_CACHE_H_
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