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Mathieu Chartierc7853442015-03-27 14:35:38 -07001/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "art_field.h"
18
19#include "art_field-inl.h"
Vladimir Marko3481ba22015-04-13 12:22:36 +010020#include "class_linker-inl.h"
Mathieu Chartierc7853442015-03-27 14:35:38 -070021#include "gc/accounting/card_table-inl.h"
Vladimir Marko3481ba22015-04-13 12:22:36 +010022#include "handle_scope.h"
Mathieu Chartiere401d142015-04-22 13:56:20 -070023#include "mirror/class-inl.h"
Mathieu Chartierc7853442015-03-27 14:35:38 -070024#include "mirror/object-inl.h"
25#include "mirror/object_array-inl.h"
26#include "runtime.h"
27#include "scoped_thread_state_change.h"
28#include "utils.h"
29#include "well_known_classes.h"
30
31namespace art {
32
33ArtField::ArtField() : access_flags_(0), field_dex_idx_(0), offset_(0) {
34 declaring_class_ = GcRoot<mirror::Class>(nullptr);
35}
36
37void ArtField::SetOffset(MemberOffset num_bytes) {
38 DCHECK(GetDeclaringClass()->IsLoaded() || GetDeclaringClass()->IsErroneous());
39 if (kIsDebugBuild && Runtime::Current()->IsAotCompiler() &&
40 Runtime::Current()->IsCompilingBootImage()) {
41 Primitive::Type type = GetTypeAsPrimitiveType();
42 if (type == Primitive::kPrimDouble || type == Primitive::kPrimLong) {
43 DCHECK_ALIGNED(num_bytes.Uint32Value(), 8);
44 }
45 }
46 // Not called within a transaction.
47 offset_ = num_bytes.Uint32Value();
48}
49
Mathieu Chartierc7853442015-03-27 14:35:38 -070050ArtField* ArtField::FindInstanceFieldWithOffset(mirror::Class* klass, uint32_t field_offset) {
51 DCHECK(klass != nullptr);
Mathieu Chartier54d220e2015-07-30 16:20:06 -070052 for (ArtField& field : klass->GetIFields()) {
53 if (field.GetOffset().Uint32Value() == field_offset) {
54 return &field;
Mathieu Chartierc7853442015-03-27 14:35:38 -070055 }
56 }
57 // We did not find field in the class: look into superclass.
58 return (klass->GetSuperClass() != nullptr) ?
59 FindInstanceFieldWithOffset(klass->GetSuperClass(), field_offset) : nullptr;
60}
61
Hiroshi Yamauchieb2baaf2015-05-13 21:14:22 -070062ArtField* ArtField::FindStaticFieldWithOffset(mirror::Class* klass, uint32_t field_offset) {
63 DCHECK(klass != nullptr);
Mathieu Chartier54d220e2015-07-30 16:20:06 -070064 for (ArtField& field : klass->GetSFields()) {
65 if (field.GetOffset().Uint32Value() == field_offset) {
66 return &field;
Hiroshi Yamauchieb2baaf2015-05-13 21:14:22 -070067 }
68 }
69 return nullptr;
70}
71
Vladimir Marko3481ba22015-04-13 12:22:36 +010072mirror::Class* ArtField::ProxyFindSystemClass(const char* descriptor) {
73 DCHECK(GetDeclaringClass()->IsProxyClass());
74 return Runtime::Current()->GetClassLinker()->FindSystemClass(Thread::Current(), descriptor);
75}
76
77mirror::Class* ArtField::ResolveGetType(uint32_t type_idx) {
78 return Runtime::Current()->GetClassLinker()->ResolveType(type_idx, this);
79}
80
81mirror::String* ArtField::ResolveGetStringName(Thread* self, const DexFile& dex_file,
82 uint32_t string_idx, mirror::DexCache* dex_cache) {
83 StackHandleScope<1> hs(self);
84 return Runtime::Current()->GetClassLinker()->ResolveString(
85 dex_file, string_idx, hs.NewHandle(dex_cache));
86}
87
Mathieu Chartierc7853442015-03-27 14:35:38 -070088} // namespace art