modifiers.h revision 7fc8f90b7160e879143be5cfd6ea3df866398884 
1/*
2 * Copyright (C) 2012 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_MODIFIERS_H_
18#define ART_RUNTIME_MODIFIERS_H_
19
20#include <stdint.h>
21
22static constexpr uint32_t kAccPublic =       0x0001;  // class, field, method, ic
23static constexpr uint32_t kAccPrivate =      0x0002;  // field, method, ic
24static constexpr uint32_t kAccProtected =    0x0004;  // field, method, ic
25static constexpr uint32_t kAccStatic =       0x0008;  // field, method, ic
26static constexpr uint32_t kAccFinal =        0x0010;  // class, field, method, ic
27static constexpr uint32_t kAccSynchronized = 0x0020;  // method (only allowed on natives)
28static constexpr uint32_t kAccSuper =        0x0020;  // class (not used in dex)
29static constexpr uint32_t kAccVolatile =     0x0040;  // field
30static constexpr uint32_t kAccBridge =       0x0040;  // method (1.5)
31static constexpr uint32_t kAccTransient =    0x0080;  // field
32static constexpr uint32_t kAccVarargs =      0x0080;  // method (1.5)
33static constexpr uint32_t kAccNative =       0x0100;  // method
34static constexpr uint32_t kAccInterface =    0x0200;  // class, ic
35static constexpr uint32_t kAccAbstract =     0x0400;  // class, method, ic
36static constexpr uint32_t kAccStrict =       0x0800;  // method
37static constexpr uint32_t kAccSynthetic =    0x1000;  // class, field, method, ic
38static constexpr uint32_t kAccAnnotation =   0x2000;  // class, ic (1.5)
39static constexpr uint32_t kAccEnum =         0x4000;  // class, field, ic (1.5)
40
41static constexpr uint32_t kAccJavaFlagsMask = 0xffff;  // bits set from Java sources (low 16)
42
43static constexpr uint32_t kAccConstructor =          0x00010000;  // method (dex only) <(cl)init>
44static constexpr uint32_t kAccDeclaredSynchronized = 0x00020000;  // method (dex only)
45static constexpr uint32_t kAccClassIsProxy =         0x00040000;  // class  (dex only)
46static constexpr uint32_t kAccPreverified =          0x00080000;  // class (runtime),
47                                                                  // method (dex only)
48static constexpr uint32_t kAccFastNative =           0x00080000;  // method (dex only)
49static constexpr uint32_t kAccPortableCompiled =     0x00100000;  // method (dex only)
50static constexpr uint32_t kAccMiranda =              0x00200000;  // method (dex only)
51
52// Special runtime-only flags.
53// Note: if only kAccClassIsReference is set, we have a soft reference.
54
55// class/ancestor overrides finalize()
56static constexpr uint32_t kAccClassIsFinalizable        = 0x80000000;
57// class is a soft/weak/phantom ref
58static constexpr uint32_t kAccClassIsReference          = 0x08000000;
59// class is a weak reference
60static constexpr uint32_t kAccClassIsWeakReference      = 0x04000000;
61// class is a finalizer reference
62static constexpr uint32_t kAccClassIsFinalizerReference = 0x02000000;
63// class is a phantom reference
64static constexpr uint32_t kAccClassIsPhantomReference   = 0x01000000;
65
66static constexpr uint32_t kAccReferenceFlagsMask = (kAccClassIsReference
67                                                  | kAccClassIsWeakReference
68                                                  | kAccClassIsFinalizerReference
69                                                  | kAccClassIsPhantomReference);
70
71// Valid (meaningful) bits for a field.
72static constexpr uint32_t kAccValidFieldFlags = kAccPublic | kAccPrivate | kAccProtected |
73    kAccStatic | kAccFinal | kAccVolatile | kAccTransient | kAccSynthetic | kAccEnum;
74
75// Valid (meaningful) bits for a method.
76static constexpr uint32_t kAccValidMethodFlags = kAccPublic | kAccPrivate | kAccProtected |
77    kAccStatic | kAccFinal | kAccSynchronized | kAccBridge | kAccVarargs | kAccNative |
78    kAccAbstract | kAccStrict | kAccSynthetic | kAccMiranda | kAccConstructor |
79    kAccDeclaredSynchronized;
80
81// Valid (meaningful) bits for a class (not interface).
82// Note 1. These are positive bits. Other bits may have to be zero.
83// Note 2. Inner classes can expose more access flags to Java programs. That is handled by libcore.
84static constexpr uint32_t kAccValidClassFlags = kAccPublic | kAccFinal | kAccSuper |
85    kAccAbstract | kAccSynthetic | kAccEnum;
86
87// Valid (meaningful) bits for an interface.
88// Note 1. Annotations are interfaces.
89// Note 2. These are positive bits. Other bits may have to be zero.
90// Note 3. Inner classes can expose more access flags to Java programs. That is handled by libcore.
91static constexpr uint32_t kAccValidInterfaceFlags = kAccPublic | kAccInterface |
92    kAccAbstract | kAccSynthetic | kAccAnnotation;
93
94#endif  // ART_RUNTIME_MODIFIERS_H_
95
96