/*
* 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_
Messung V0.5 in Prozent C=90 H=97 G=93
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-06-29)
¤
*© Formatika GbR, Deutschland