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/*
* Copyright (C) 2015 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 "field-inl.h"
#include "class-inl.h"
#include "dex_cache-inl.h"
#include "object-inl.h"
#include "object_array-inl.h"
namespace art {
namespace mirror {
GcRoot<Class> Field::static_class_;
GcRoot<Class> Field::array_class_;
void Field::SetClass(ObjPtr<Class> klass) {
CHECK(static_class_.IsNull()) << static_class_.Read() << " " << klass;
CHECK(klass != nullptr);
static_class_ = GcRoot<Class>(klass);
}
void Field::ResetClass() {
CHECK(!static_class_.IsNull());
static_class_ = GcRoot<Class>(nullptr);
}
void Field::SetArrayClass(ObjPtr<Class> klass) {
CHECK(array_class_.IsNull()) << array_class_.Read() << " " << klass;
CHECK(klass != nullptr);
array_class_ = GcRoot<Class>(klass);
}
void Field::ResetArrayClass() {
CHECK(!array_class_.IsNull());
array_class_ = GcRoot<Class>(nullptr);
}
void Field::VisitRoots(RootVisitor* visitor) {
static_class_.VisitRootIfNonNull(visitor, RootInfo(kRootStickyClass));
array_class_.VisitRootIfNonNull(visitor, RootInfo(kRootStickyClass));
}
ArtField* Field::GetArtField() {
mirror::Class* declaring_class = GetDeclaringClass();
if (UNLIKELY(declaring_class->IsProxyClass())) {
DCHECK(IsStatic());
DCHECK_EQ(declaring_class->NumStaticFields(), 2U);
// 0 == Class[] interfaces; 1 == Class[][] throws;
if (GetDexFieldIndex() == 0) {
return &declaring_class->GetSFieldsPtr()->At(0);
} else {
DCHECK_EQ(GetDexFieldIndex(), 1U);
return &declaring_class->GetSFieldsPtr()->At(1);
}
}
mirror::DexCache* const dex_cache = declaring_class->GetDexCache();
ArtField* art_field = dex_cache->GetResolvedField(GetDexFieldIndex(), kRuntimePointerSize);
if (UNLIKELY(art_field == nullptr)) {
if (IsStatic()) {
art_field = declaring_class->FindDeclaredStaticField(dex_cache, GetDexFieldIndex());
} else {
art_field = declaring_class->FindInstanceField(dex_cache, GetDexFieldIndex());
}
CHECK(art_field != nullptr);
dex_cache->SetResolvedField(GetDexFieldIndex(), art_field, kRuntimePointerSize);
}
CHECK_EQ(declaring_class, art_field->GetDeclaringClass());
return art_field;
}
} // namespace mirror
} // namespace art