97 lines
4.2 KiB
C++
97 lines
4.2 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ART_RUNTIME_MIRROR_OBJECT_REFVISITOR_INL_H_
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#define ART_RUNTIME_MIRROR_OBJECT_REFVISITOR_INL_H_
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#include "object-inl.h"
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#include "class-refvisitor-inl.h"
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#include "class_loader-inl.h"
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#include "dex_cache-inl.h"
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namespace art {
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namespace mirror {
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template <bool kVisitNativeRoots,
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VerifyObjectFlags kVerifyFlags,
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ReadBarrierOption kReadBarrierOption,
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typename Visitor,
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typename JavaLangRefVisitor>
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inline void Object::VisitReferences(const Visitor& visitor,
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const JavaLangRefVisitor& ref_visitor) {
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visitor(this, ClassOffset(), /* is_static= */ false);
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ObjPtr<Class> klass = GetClass<kVerifyFlags, kReadBarrierOption>();
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const uint32_t class_flags = klass->GetClassFlags<kVerifyNone>();
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if (LIKELY(class_flags == kClassFlagNormal)) {
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DCHECK((!klass->IsVariableSize<kVerifyFlags>()));
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VisitInstanceFieldsReferences<kVerifyFlags, kReadBarrierOption>(klass, visitor);
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DCHECK((!klass->IsClassClass<kVerifyFlags>()));
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DCHECK(!klass->IsStringClass<kVerifyFlags>());
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DCHECK(!klass->IsClassLoaderClass<kVerifyFlags>());
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DCHECK((!klass->IsArrayClass<kVerifyFlags>()));
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} else {
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if ((class_flags & kClassFlagNoReferenceFields) == 0) {
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DCHECK(!klass->IsStringClass<kVerifyFlags>());
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if (class_flags == kClassFlagClass) {
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DCHECK((klass->IsClassClass<kVerifyFlags>()));
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ObjPtr<Class> as_klass = AsClass<kVerifyNone>();
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as_klass->VisitReferences<kVisitNativeRoots, kVerifyFlags, kReadBarrierOption>(klass,
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visitor);
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} else if (class_flags == kClassFlagObjectArray) {
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DCHECK((klass->IsObjectArrayClass<kVerifyFlags>()));
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AsObjectArray<mirror::Object, kVerifyNone>()->VisitReferences(visitor);
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} else if ((class_flags & kClassFlagReference) != 0) {
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VisitInstanceFieldsReferences<kVerifyFlags, kReadBarrierOption>(klass, visitor);
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ref_visitor(klass, AsReference<kVerifyFlags, kReadBarrierOption>());
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} else if (class_flags == kClassFlagDexCache) {
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ObjPtr<mirror::DexCache> const dex_cache = AsDexCache<kVerifyFlags, kReadBarrierOption>();
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dex_cache->VisitReferences<kVisitNativeRoots,
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kVerifyFlags,
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kReadBarrierOption>(klass, visitor);
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} else {
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ObjPtr<mirror::ClassLoader> const class_loader =
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AsClassLoader<kVerifyFlags, kReadBarrierOption>();
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class_loader->VisitReferences<kVisitNativeRoots,
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kVerifyFlags,
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kReadBarrierOption>(klass, visitor);
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}
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} else if (kIsDebugBuild) {
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CHECK((!klass->IsClassClass<kVerifyFlags>()));
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CHECK((!klass->IsObjectArrayClass<kVerifyFlags>()));
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// String still has instance fields for reflection purposes but these don't exist in
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// actual string instances.
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if (!klass->IsStringClass<kVerifyFlags>()) {
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size_t total_reference_instance_fields = 0;
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ObjPtr<Class> super_class = klass;
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do {
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total_reference_instance_fields +=
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super_class->NumReferenceInstanceFields<kVerifyFlags>();
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super_class = super_class->GetSuperClass<kVerifyFlags, kReadBarrierOption>();
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} while (super_class != nullptr);
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// The only reference field should be the object's class. This field is handled at the
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// beginning of the function.
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CHECK_EQ(total_reference_instance_fields, 1u);
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}
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}
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}
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}
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} // namespace mirror
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} // namespace art
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#endif // ART_RUNTIME_MIRROR_OBJECT_REFVISITOR_INL_H_
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