1 /*
2 * Copyright (c) 1997, 2008, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 // constant tags in Java .class files
26
27
28 enum {
29 // See jvm.h for shared JVM_CONSTANT_XXX tags
30 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
31 // Hotspot specific tags
32 JVM_CONSTANT_Invalid = 0, // For bad value initialization
33 JVM_CONSTANT_InternalMin = 100, // First implementation tag (aside from bad value of course)
34 JVM_CONSTANT_UnresolvedClass = 100, // Temporary tag until actual use
35 JVM_CONSTANT_ClassIndex = 101, // Temporary tag while constructing constant pool
36 JVM_CONSTANT_UnresolvedString = 102, // Temporary tag until actual use
37 JVM_CONSTANT_StringIndex = 103, // Temporary tag while constructing constant pool
38 JVM_CONSTANT_UnresolvedClassInError = 104, // Error tag due to resolution error
39 JVM_CONSTANT_Object = 105, // Required for BoundMethodHandle arguments.
40 JVM_CONSTANT_InternalMax = 105 // Last implementation tag
41 };
42
43
44 class constantTag VALUE_OBJ_CLASS_SPEC {
83 bool is_invoke_dynamic() const { return _tag == JVM_CONSTANT_InvokeDynamic; }
84
85 constantTag() {
86 _tag = JVM_CONSTANT_Invalid;
87 }
88 constantTag(jbyte tag) {
89 assert((tag >= 0 && tag <= JVM_CONSTANT_NameAndType) ||
90 (tag >= JVM_CONSTANT_MethodHandle && tag <= JVM_CONSTANT_InvokeDynamic) ||
91 (tag >= JVM_CONSTANT_InternalMin && tag <= JVM_CONSTANT_InternalMax), "Invalid constant tag");
92 _tag = tag;
93 }
94
95 jbyte value() { return _tag; }
96
97 BasicType basic_type() const; // if used with ldc, what kind of value gets pushed?
98
99 const char* internal_name() const; // for error reporting
100
101 void print_on(outputStream* st) const PRODUCT_RETURN;
102 };
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1 /*
2 * Copyright (c) 1997, 2010, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_UTILITIES_CONSTANTTAG_HPP
26 #define SHARE_VM_UTILITIES_CONSTANTTAG_HPP
27
28 #include "prims/jvm.h"
29 #include "utilities/top.hpp"
30
31 // constant tags in Java .class files
32
33
34 enum {
35 // See jvm.h for shared JVM_CONSTANT_XXX tags
36 // NOTE: replicated in SA in vm/agent/sun/jvm/hotspot/utilities/ConstantTag.java
37 // Hotspot specific tags
38 JVM_CONSTANT_Invalid = 0, // For bad value initialization
39 JVM_CONSTANT_InternalMin = 100, // First implementation tag (aside from bad value of course)
40 JVM_CONSTANT_UnresolvedClass = 100, // Temporary tag until actual use
41 JVM_CONSTANT_ClassIndex = 101, // Temporary tag while constructing constant pool
42 JVM_CONSTANT_UnresolvedString = 102, // Temporary tag until actual use
43 JVM_CONSTANT_StringIndex = 103, // Temporary tag while constructing constant pool
44 JVM_CONSTANT_UnresolvedClassInError = 104, // Error tag due to resolution error
45 JVM_CONSTANT_Object = 105, // Required for BoundMethodHandle arguments.
46 JVM_CONSTANT_InternalMax = 105 // Last implementation tag
47 };
48
49
50 class constantTag VALUE_OBJ_CLASS_SPEC {
89 bool is_invoke_dynamic() const { return _tag == JVM_CONSTANT_InvokeDynamic; }
90
91 constantTag() {
92 _tag = JVM_CONSTANT_Invalid;
93 }
94 constantTag(jbyte tag) {
95 assert((tag >= 0 && tag <= JVM_CONSTANT_NameAndType) ||
96 (tag >= JVM_CONSTANT_MethodHandle && tag <= JVM_CONSTANT_InvokeDynamic) ||
97 (tag >= JVM_CONSTANT_InternalMin && tag <= JVM_CONSTANT_InternalMax), "Invalid constant tag");
98 _tag = tag;
99 }
100
101 jbyte value() { return _tag; }
102
103 BasicType basic_type() const; // if used with ldc, what kind of value gets pushed?
104
105 const char* internal_name() const; // for error reporting
106
107 void print_on(outputStream* st) const PRODUCT_RETURN;
108 };
109
110 #endif // SHARE_VM_UTILITIES_CONSTANTTAG_HPP
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