/* * Copyright (C) 2011 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_RUNTIME_MIRROR_OBJECT_REFVISITOR_INL_H_ #define ART_RUNTIME_MIRROR_OBJECT_REFVISITOR_INL_H_ #include "object-inl.h" #include "class-refvisitor-inl.h" #include "class_loader-inl.h" #include "dex_cache-inl.h" namespace art { namespace mirror { template <bool kVisitNativeRoots, VerifyObjectFlags kVerifyFlags, ReadBarrierOption kReadBarrierOption, typename Visitor, typename JavaLangRefVisitor> inline void Object::VisitReferences(const Visitor& visitor, const JavaLangRefVisitor& ref_visitor) { visitor(this, ClassOffset(), /* is_static= */ false); ObjPtr<Class> klass = GetClass<kVerifyFlags, kReadBarrierOption>(); const uint32_t class_flags = klass->GetClassFlags<kVerifyNone>(); if (LIKELY(class_flags == kClassFlagNormal)) { DCHECK((!klass->IsVariableSize<kVerifyFlags>())); VisitInstanceFieldsReferences<kVerifyFlags, kReadBarrierOption>(klass, visitor); DCHECK((!klass->IsClassClass<kVerifyFlags>())); DCHECK(!klass->IsStringClass<kVerifyFlags>()); DCHECK(!klass->IsClassLoaderClass<kVerifyFlags>()); DCHECK((!klass->IsArrayClass<kVerifyFlags>())); } else { if ((class_flags & kClassFlagNoReferenceFields) == 0) { DCHECK(!klass->IsStringClass<kVerifyFlags>()); if (class_flags == kClassFlagClass) { DCHECK((klass->IsClassClass<kVerifyFlags>())); ObjPtr<Class> as_klass = AsClass<kVerifyNone>(); as_klass->VisitReferences<kVisitNativeRoots, kVerifyFlags, kReadBarrierOption>(klass, visitor); } else if (class_flags == kClassFlagObjectArray) { DCHECK((klass->IsObjectArrayClass<kVerifyFlags>())); AsObjectArray<mirror::Object, kVerifyNone>()->VisitReferences(visitor); } else if ((class_flags & kClassFlagReference) != 0) { VisitInstanceFieldsReferences<kVerifyFlags, kReadBarrierOption>(klass, visitor); ref_visitor(klass, AsReference<kVerifyFlags, kReadBarrierOption>()); } else if (class_flags == kClassFlagDexCache) { ObjPtr<mirror::DexCache> const dex_cache = AsDexCache<kVerifyFlags, kReadBarrierOption>(); dex_cache->VisitReferences<kVisitNativeRoots, kVerifyFlags, kReadBarrierOption>(klass, visitor); } else { ObjPtr<mirror::ClassLoader> const class_loader = AsClassLoader<kVerifyFlags, kReadBarrierOption>(); class_loader->VisitReferences<kVisitNativeRoots, kVerifyFlags, kReadBarrierOption>(klass, visitor); } } else if (kIsDebugBuild) { CHECK((!klass->IsClassClass<kVerifyFlags>())); CHECK((!klass->IsObjectArrayClass<kVerifyFlags>())); // String still has instance fields for reflection purposes but these don't exist in // actual string instances. if (!klass->IsStringClass<kVerifyFlags>()) { size_t total_reference_instance_fields = 0; ObjPtr<Class> super_class = klass; do { total_reference_instance_fields += super_class->NumReferenceInstanceFields<kVerifyFlags>(); super_class = super_class->GetSuperClass<kVerifyFlags, kReadBarrierOption>(); } while (super_class != nullptr); // The only reference field should be the object's class. This field is handled at the // beginning of the function. CHECK_EQ(total_reference_instance_fields, 1u); } } } } } // namespace mirror } // namespace art #endif // ART_RUNTIME_MIRROR_OBJECT_REFVISITOR_INL_H_