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/*
* 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.
*/
#include "art_field.h"
#include "art_field-inl.h"
#include "class_linker-inl.h"
#include "gc/accounting/card_table-inl.h"
#include "handle_scope.h"
#include "mirror/class-inl.h"
#include "mirror/object-inl.h"
#include "mirror/object_array-inl.h"
#include "runtime.h"
#include "scoped_thread_state_change.h"
#include "utils.h"
#include "well_known_classes.h"
namespace art {
ArtField::ArtField() : access_flags_(0), field_dex_idx_(0), offset_(0) {
declaring_class_ = GcRoot<mirror::Class>(nullptr);
}
void ArtField::SetOffset(MemberOffset num_bytes) {
DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous());
if (kIsDebugBuild && Runtime::Current()->IsAotCompiler() &&
Runtime::Current()->IsCompilingBootImage()) {
Primitive::Type type = GetTypeAsPrimitiveType();
if (type == Primitive::kPrimDouble || type == Primitive::kPrimLong) {
DCHECK_ALIGNED(num_bytes.Uint32Value(), 8);
}
}
// Not called within a transaction.
offset_ = num_bytes.Uint32Value();
}
ArtField* ArtField::FindInstanceFieldWithOffset(mirror::Class* klass, uint32_t field_offset) {
DCHECK(klass != nullptr);
auto* instance_fields = klass->GetIFields();
for (size_t i = 0, count = klass->NumInstanceFields(); i < count; ++i) {
if (instance_fields[i].GetOffset().Uint32Value() == field_offset) {
return &instance_fields[i];
}
}
// We did not find field in the class: look into superclass.
return (klass->GetSuperClass() != nullptr) ?
FindInstanceFieldWithOffset(klass->GetSuperClass(), field_offset) : nullptr;
}
ArtField* ArtField::FindStaticFieldWithOffset(mirror::Class* klass, uint32_t field_offset) {
DCHECK(klass != nullptr);
auto* static_fields = klass->GetSFields();
for (size_t i = 0, count = klass->NumStaticFields(); i < count; ++i) {
if (static_fields[i].GetOffset().Uint32Value() == field_offset) {
return &static_fields[i];
}
}
return nullptr;
}
mirror::Class* ArtField::ProxyFindSystemClass(const char* descriptor) {
DCHECK(GetDeclaringClass()->IsProxyClass());
return Runtime::Current()->GetClassLinker()->FindSystemClass(Thread::Current(), descriptor);
}
mirror::Class* ArtField::ResolveGetType(uint32_t type_idx) {
return Runtime::Current()->GetClassLinker()->ResolveType(type_idx, this);
}
mirror::String* ArtField::ResolveGetStringName(Thread* self, const DexFile& dex_file,
uint32_t string_idx, mirror::DexCache* dex_cache) {
StackHandleScope<1> hs(self);
return Runtime::Current()->GetClassLinker()->ResolveString(
dex_file, string_idx, hs.NewHandle(dex_cache));
}
} // namespace art
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