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_CLASS_FLAGS_H_
18#define ART_RUNTIME_MIRROR_CLASS_FLAGS_H_
19
20#include <stdint.h>
21
22namespace art {
23namespace mirror {
24
25// Normal instance with at least one ref field other than the class.
26static constexpr uint32_t kClassFlagNormal             = 0x00000000;
27
28// Only normal objects which have no reference fields, e.g. string or primitive array or normal
29// class instance with no fields other than klass.
30static constexpr uint32_t kClassFlagNoReferenceFields  = 0x00000001;
31
32// Class is java.lang.String.class.
33static constexpr uint32_t kClassFlagString             = 0x00000004;
34
35// Class is an object array class.
36static constexpr uint32_t kClassFlagObjectArray        = 0x00000008;
37
38// Class is java.lang.Class.class.
39static constexpr uint32_t kClassFlagClass              = 0x00000010;
40
41// Class is ClassLoader or one of its subclasses.
42static constexpr uint32_t kClassFlagClassLoader        = 0x00000020;
43
44// Class is DexCache.
45static constexpr uint32_t kClassFlagDexCache           = 0x00000040;
46
47// Class is a soft/weak/phantom class.
48static constexpr uint32_t kClassFlagSoftReference      = 0x00000080;
49
50// Class is a weak reference class.
51static constexpr uint32_t kClassFlagWeakReference      = 0x00000100;
52
53// Class is a finalizer reference class.
54static constexpr uint32_t kClassFlagFinalizerReference = 0x00000200;
55
56// Class is the phantom reference class.
57static constexpr uint32_t kClassFlagPhantomReference   = 0x00000400;
58
59// Combination of flags to figure out if the class is either the weak/soft/phantom/finalizer
60// reference class.
61static constexpr uint32_t kClassFlagReference =
62    kClassFlagSoftReference |
63    kClassFlagWeakReference |
64    kClassFlagFinalizerReference |
65    kClassFlagPhantomReference;
66
67}  // namespace mirror
68}  // namespace art
69
70#endif  // ART_RUNTIME_MIRROR_CLASS_FLAGS_H_
71
72