ClassFileConstants.java revision 14176:8606d027b2c2 
1/*
2 * Copyright (c) 2001, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package jdk.internal.reflect;
27
28/** Minimal set of class file constants for assembly of field and
29    method accessors. */
30
31interface ClassFileConstants {
32    // Constants
33    public static final byte opc_aconst_null   = (byte) 0x1;
34    public static final byte opc_sipush        = (byte) 0x11;
35    public static final byte opc_ldc           = (byte) 0x12;
36
37    // Local variable loads and stores
38    public static final byte opc_iload_0       = (byte) 0x1a;
39    public static final byte opc_iload_1       = (byte) 0x1b;
40    public static final byte opc_iload_2       = (byte) 0x1c;
41    public static final byte opc_iload_3       = (byte) 0x1d;
42    public static final byte opc_lload_0       = (byte) 0x1e;
43    public static final byte opc_lload_1       = (byte) 0x1f;
44    public static final byte opc_lload_2       = (byte) 0x20;
45    public static final byte opc_lload_3       = (byte) 0x21;
46    public static final byte opc_fload_0       = (byte) 0x22;
47    public static final byte opc_fload_1       = (byte) 0x23;
48    public static final byte opc_fload_2       = (byte) 0x24;
49    public static final byte opc_fload_3       = (byte) 0x25;
50    public static final byte opc_dload_0       = (byte) 0x26;
51    public static final byte opc_dload_1       = (byte) 0x27;
52    public static final byte opc_dload_2       = (byte) 0x28;
53    public static final byte opc_dload_3       = (byte) 0x29;
54    public static final byte opc_aload_0       = (byte) 0x2a;
55    public static final byte opc_aload_1       = (byte) 0x2b;
56    public static final byte opc_aload_2       = (byte) 0x2c;
57    public static final byte opc_aload_3       = (byte) 0x2d;
58    public static final byte opc_aaload        = (byte) 0x32;
59    public static final byte opc_astore_0      = (byte) 0x4b;
60    public static final byte opc_astore_1      = (byte) 0x4c;
61    public static final byte opc_astore_2      = (byte) 0x4d;
62    public static final byte opc_astore_3      = (byte) 0x4e;
63
64    // Stack manipulation
65    public static final byte opc_pop           = (byte) 0x57;
66    public static final byte opc_dup           = (byte) 0x59;
67    public static final byte opc_dup_x1        = (byte) 0x5a;
68    public static final byte opc_swap          = (byte) 0x5f;
69
70    // Conversions
71    public static final byte opc_i2l           = (byte) 0x85;
72    public static final byte opc_i2f           = (byte) 0x86;
73    public static final byte opc_i2d           = (byte) 0x87;
74    public static final byte opc_l2i           = (byte) 0x88;
75    public static final byte opc_l2f           = (byte) 0x89;
76    public static final byte opc_l2d           = (byte) 0x8a;
77    public static final byte opc_f2i           = (byte) 0x8b;
78    public static final byte opc_f2l           = (byte) 0x8c;
79    public static final byte opc_f2d           = (byte) 0x8d;
80    public static final byte opc_d2i           = (byte) 0x8e;
81    public static final byte opc_d2l           = (byte) 0x8f;
82    public static final byte opc_d2f           = (byte) 0x90;
83    public static final byte opc_i2b           = (byte) 0x91;
84    public static final byte opc_i2c           = (byte) 0x92;
85    public static final byte opc_i2s           = (byte) 0x93;
86
87    // Control flow
88    public static final byte opc_ifeq          = (byte) 0x99;
89    public static final byte opc_if_icmpeq     = (byte) 0x9f;
90    public static final byte opc_goto          = (byte) 0xa7;
91
92    // Return instructions
93    public static final byte opc_ireturn       = (byte) 0xac;
94    public static final byte opc_lreturn       = (byte) 0xad;
95    public static final byte opc_freturn       = (byte) 0xae;
96    public static final byte opc_dreturn       = (byte) 0xaf;
97    public static final byte opc_areturn       = (byte) 0xb0;
98    public static final byte opc_return        = (byte) 0xb1;
99
100    // Field operations
101    public static final byte opc_getstatic     = (byte) 0xb2;
102    public static final byte opc_putstatic     = (byte) 0xb3;
103    public static final byte opc_getfield      = (byte) 0xb4;
104    public static final byte opc_putfield      = (byte) 0xb5;
105
106    // Method invocations
107    public static final byte opc_invokevirtual   = (byte) 0xb6;
108    public static final byte opc_invokespecial   = (byte) 0xb7;
109    public static final byte opc_invokestatic    = (byte) 0xb8;
110    public static final byte opc_invokeinterface = (byte) 0xb9;
111
112    // Array length
113    public static final byte opc_arraylength     = (byte) 0xbe;
114
115    // New
116    public static final byte opc_new           = (byte) 0xbb;
117
118    // Athrow
119    public static final byte opc_athrow        = (byte) 0xbf;
120
121    // Checkcast and instanceof
122    public static final byte opc_checkcast     = (byte) 0xc0;
123    public static final byte opc_instanceof    = (byte) 0xc1;
124
125    // Ifnull and ifnonnull
126    public static final byte opc_ifnull        = (byte) 0xc6;
127    public static final byte opc_ifnonnull     = (byte) 0xc7;
128
129    // Constant pool tags
130    public static final byte CONSTANT_Class              = (byte) 7;
131    public static final byte CONSTANT_Fieldref           = (byte) 9;
132    public static final byte CONSTANT_Methodref          = (byte) 10;
133    public static final byte CONSTANT_InterfaceMethodref = (byte) 11;
134    public static final byte CONSTANT_NameAndType        = (byte) 12;
135    public static final byte CONSTANT_String             = (byte) 8;
136    public static final byte CONSTANT_Utf8               = (byte) 1;
137
138    // Access flags
139    public static final short ACC_PUBLIC = (short) 0x0001;
140}
141