001 /*
002 * This file is part of the Jikes RVM project (http://jikesrvm.org).
003 *
004 * This file is licensed to You under the Eclipse Public License (EPL);
005 * You may not use this file except in compliance with the License. You
006 * may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/eclipse-1.0.php
009 *
010 * See the COPYRIGHT.txt file distributed with this work for information
011 * regarding copyright ownership.
012 */
013 package org.jikesrvm.classloader;
014
015 public interface ClassLoaderConstants {
016 // Attribute modifiers for class-, method-, and field- descriptions.
017 //
018 // applicability
019 // name value class field method
020 // --------------- -------- ----- ----- ------
021 short ACC_PUBLIC = 0x0001; // X X X
022 short ACC_PRIVATE = 0x0002; // X X X (applicable to inner classes)
023 short ACC_PROTECTED = 0x0004; // X X X (applicable to inner classes)
024 short ACC_STATIC = 0x0008; // X X X (applicable to inner classes)
025 short ACC_FINAL = 0x0010; // X X X
026 short ACC_SYNCHRONIZED = 0x0020; // - - X <- same value as ACC_SUPER
027 short ACC_SUPER = 0x0020; // X - - <- same value as ACC_SYNCHRONIZED
028 short ACC_VOLATILE = 0x0040; // - X -
029 short BRIDGE = 0x0040; // - - X <- same value as ACC_VOLATILE
030 short ACC_TRANSIENT = 0x0080; // - X -
031 short VARARGS = 0x0080; // - - X <- same value as ACC_TRANSIENT
032 short ACC_NATIVE = 0x0100; // - - X
033 short ACC_INTERFACE = 0x0200; // X - -
034 short ACC_ABSTRACT = 0x0400; // X - X
035 short ACC_STRICT = 0x0800; // - - X
036 short ACC_SYNTHETIC = 0x1000; // X X X
037 short ACC_ANNOTATION = 0x2000; // X - -
038 short ACC_ENUM = 0x4000; // X X -
039
040 short APPLICABLE_TO_FIELDS =
041 (ACC_PUBLIC |
042 ACC_PRIVATE |
043 ACC_PROTECTED |
044 ACC_STATIC |
045 ACC_FINAL |
046 ACC_VOLATILE |
047 ACC_TRANSIENT |
048 ACC_SYNTHETIC |
049 ACC_ENUM);
050
051 short APPLICABLE_TO_METHODS =
052 (ACC_PUBLIC |
053 ACC_PRIVATE |
054 ACC_PROTECTED |
055 ACC_STATIC |
056 ACC_FINAL |
057 ACC_SYNCHRONIZED |
058 BRIDGE |
059 VARARGS |
060 ACC_NATIVE |
061 ACC_ABSTRACT |
062 ACC_STRICT |
063 ACC_SYNTHETIC);
064
065 short APPLICABLE_TO_CLASSES =
066 (ACC_PUBLIC |
067 ACC_PRIVATE |
068 ACC_STATIC |
069 ACC_FINAL |
070 ACC_SUPER |
071 ACC_INTERFACE |
072 ACC_ABSTRACT |
073 ACC_SYNTHETIC |
074 ACC_ANNOTATION |
075 ACC_ENUM);
076
077 /* Possible states of a class description. */
078 /** nothing present yet */
079 byte CLASS_VACANT = 0;
080 /** .class file contents read successfully */
081 byte CLASS_LOADED = 1;
082 /** fields & methods laid out, tib & statics allocated */
083 byte CLASS_RESOLVED = 2;
084 /** tib and jtoc populated */
085 byte CLASS_INSTANTIATED = 3;
086 /** <clinit> running (allocations possible) */
087 byte CLASS_INITIALIZING = 4;
088 /** exception occurred while running <clinit> class cannot be initialized successfully */
089 byte CLASS_INITIALIZER_FAILED = 5;
090 /** statics initialized */
091 byte CLASS_INITIALIZED = 6;
092
093 // Constant pool entry tags.
094 //
095 byte TAG_UTF = 1;
096 byte TAG_UNUSED = 2;
097 byte TAG_INT = 3;
098 byte TAG_FLOAT = 4;
099 byte TAG_LONG = 5;
100 byte TAG_DOUBLE = 6;
101 byte TAG_TYPEREF = 7;
102 byte TAG_STRING = 8;
103 byte TAG_FIELDREF = 9;
104 byte TAG_METHODREF = 10;
105 byte TAG_INTERFACE_METHODREF = 11;
106 byte TAG_MEMBERNAME_AND_DESCRIPTOR = 12;
107
108 // Type codes for class, array, and primitive types.
109 //
110 byte ClassTypeCode = (byte) 'L';
111 byte ArrayTypeCode = (byte) '[';
112 byte VoidTypeCode = (byte) 'V';
113 byte BooleanTypeCode = (byte) 'Z';
114 byte ByteTypeCode = (byte) 'B';
115 byte ShortTypeCode = (byte) 'S';
116 byte IntTypeCode = (byte) 'I';
117 byte LongTypeCode = (byte) 'J';
118 byte FloatTypeCode = (byte) 'F';
119 byte DoubleTypeCode = (byte) 'D';
120 byte CharTypeCode = (byte) 'C';
121
122 // Constants for our internal encoding of constant pools.
123 /** Constant pool entry for a UTF-8 encoded atom */
124 byte CP_UTF = 0;
125 /** Constant pool entry for int literal */
126 byte CP_INT = 1;
127 /** Constant pool entry for long literal */
128 byte CP_LONG = 2;
129 /** Constant pool entry for float literal */
130 byte CP_FLOAT = 3;
131 /** Constant pool entry for double literal */
132 byte CP_DOUBLE = 4;
133 /** Constant pool entry for string literal (for annotations, may be other objects) */
134 byte CP_STRING = 5;
135 /** Constant pool entry for member (field or method) reference */
136 byte CP_MEMBER = 6;
137 /** Constant pool entry for type reference or class literal */
138 byte CP_CLASS = 7;
139 }