Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 | #ifndef ART_RUNTIME_MIRROR_FIELD_H_ |
| 18 | #define ART_RUNTIME_MIRROR_FIELD_H_ |
| 19 | |
| 20 | #include "accessible_object.h" |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 21 | #include "base/enums.h" |
David Sehr | 8c0961f | 2018-01-23 16:11:38 -0800 | [diff] [blame] | 22 | #include "dex/modifiers.h" |
David Sehr | 67bf42e | 2018-02-26 16:43:04 -0800 | [diff] [blame] | 23 | #include "dex/primitive.h" |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 24 | #include "obj_ptr.h" |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 25 | #include "object.h" |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 26 | #include "read_barrier_option.h" |
| 27 | |
| 28 | namespace art { |
| 29 | |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 30 | class ArtField; |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 31 | struct FieldOffsets; |
| 32 | |
| 33 | namespace mirror { |
| 34 | |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 35 | class Class; |
| 36 | class String; |
| 37 | |
| 38 | // C++ mirror of java.lang.reflect.Field. |
| 39 | class MANAGED Field : public AccessibleObject { |
| 40 | public: |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 41 | ALWAYS_INLINE uint32_t GetDexFieldIndex() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 42 | return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, dex_field_index_)); |
| 43 | } |
| 44 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 45 | mirror::Class* GetDeclaringClass() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 46 | return GetFieldObject<Class>(OFFSET_OF_OBJECT_MEMBER(Field, declaring_class_)); |
| 47 | } |
| 48 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 49 | uint32_t GetAccessFlags() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 50 | return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, access_flags_)); |
| 51 | } |
| 52 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 53 | bool IsStatic() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 54 | return (GetAccessFlags() & kAccStatic) != 0; |
| 55 | } |
| 56 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 57 | bool IsFinal() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 58 | return (GetAccessFlags() & kAccFinal) != 0; |
| 59 | } |
| 60 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 61 | bool IsVolatile() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 62 | return (GetAccessFlags() & kAccVolatile) != 0; |
| 63 | } |
| 64 | |
Andreas Gampe | 895f922 | 2017-07-05 09:53:32 -0700 | [diff] [blame] | 65 | ALWAYS_INLINE Primitive::Type GetTypeAsPrimitiveType() REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 66 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 67 | mirror::Class* GetType() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 68 | return GetFieldObject<mirror::Class>(OFFSET_OF_OBJECT_MEMBER(Field, type_)); |
| 69 | } |
| 70 | |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 71 | int32_t GetOffset() REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 72 | return GetField32(OFFSET_OF_OBJECT_MEMBER(Field, offset_)); |
| 73 | } |
| 74 | |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 75 | // Slow, try to use only for PrettyField and such. |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 76 | ArtField* GetArtField() REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 77 | |
Andreas Gampe | 542451c | 2016-07-26 09:02:02 -0700 | [diff] [blame] | 78 | template <PointerSize kPointerSize, bool kTransactionActive = false> |
Mathieu Chartier | c785344 | 2015-03-27 14:35:38 -0700 | [diff] [blame] | 79 | static mirror::Field* CreateFromArtField(Thread* self, ArtField* field, |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 80 | bool force_resolve) |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 81 | REQUIRES_SHARED(Locks::mutator_lock_) REQUIRES(!Roles::uninterruptible_); |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 82 | |
| 83 | private: |
Neil Fuller | 60458a0 | 2016-09-01 15:32:44 +0100 | [diff] [blame] | 84 | // Padding required for matching alignment with the Java peer. |
| 85 | uint8_t padding_[2]; |
| 86 | |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 87 | HeapReference<mirror::Class> declaring_class_; |
| 88 | HeapReference<mirror::Class> type_; |
| 89 | int32_t access_flags_; |
| 90 | int32_t dex_field_index_; |
| 91 | int32_t offset_; |
| 92 | |
| 93 | template<bool kTransactionActive> |
Mathieu Chartier | 3398c78 | 2016-09-30 10:27:43 -0700 | [diff] [blame] | 94 | void SetDeclaringClass(ObjPtr<mirror::Class> c) REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 95 | |
| 96 | template<bool kTransactionActive> |
Mathieu Chartier | 31e8822 | 2016-10-14 18:43:19 -0700 | [diff] [blame] | 97 | void SetType(ObjPtr<mirror::Class> type) REQUIRES_SHARED(Locks::mutator_lock_); |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 98 | |
| 99 | template<bool kTransactionActive> |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 100 | void SetAccessFlags(uint32_t flags) REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 101 | SetField32<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(Field, access_flags_), flags); |
| 102 | } |
| 103 | |
| 104 | template<bool kTransactionActive> |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 105 | void SetDexFieldIndex(uint32_t idx) REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 106 | SetField32<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(Field, dex_field_index_), idx); |
| 107 | } |
| 108 | |
| 109 | template<bool kTransactionActive> |
Andreas Gampe | bdf7f1c | 2016-08-30 16:38:47 -0700 | [diff] [blame] | 110 | void SetOffset(uint32_t offset) REQUIRES_SHARED(Locks::mutator_lock_) { |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 111 | SetField32<kTransactionActive>(OFFSET_OF_OBJECT_MEMBER(Field, offset_), offset); |
| 112 | } |
| 113 | |
Mathieu Chartier | daaf326 | 2015-03-24 13:30:28 -0700 | [diff] [blame] | 114 | friend struct art::FieldOffsets; // for verifying offset information |
| 115 | DISALLOW_IMPLICIT_CONSTRUCTORS(Field); |
| 116 | }; |
| 117 | |
| 118 | } // namespace mirror |
| 119 | } // namespace art |
| 120 | |
| 121 | #endif // ART_RUNTIME_MIRROR_FIELD_H_ |