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 
26 package jdk.internal.reflect;
27 
28 /** Minimal set of class file constants for assembly of field and
29     method accessors. */
30 
31 interface 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