1 /*
2 * Copyright (c) 1997, 2013, 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 *
92 bool is_method_handle() const { return _tag == JVM_CONSTANT_MethodHandle; }
93 bool is_invoke_dynamic() const { return _tag == JVM_CONSTANT_InvokeDynamic; }
94
95 bool is_loadable_constant() const {
96 return ((_tag >= JVM_CONSTANT_Integer && _tag <= JVM_CONSTANT_String) ||
97 is_method_type() || is_method_handle() ||
98 is_unresolved_klass());
99 }
100
101 constantTag() {
102 _tag = JVM_CONSTANT_Invalid;
103 }
104 constantTag(jbyte tag) {
105 assert((tag >= 0 && tag <= JVM_CONSTANT_NameAndType) ||
106 (tag >= JVM_CONSTANT_MethodHandle && tag <= JVM_CONSTANT_InvokeDynamic) ||
107 (tag >= JVM_CONSTANT_InternalMin && tag <= JVM_CONSTANT_InternalMax), "Invalid constant tag");
108 _tag = tag;
109 }
110
111 jbyte value() const { return _tag; }
112 jbyte non_error_value() const;
113
114 BasicType basic_type() const; // if used with ldc, what kind of value gets pushed?
115
116 const char* internal_name() const; // for error reporting
117
118 void print_on(outputStream* st) const PRODUCT_RETURN;
119 };
120
121 #endif // SHARE_VM_UTILITIES_CONSTANTTAG_HPP
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1 /*
2 * Copyright (c) 1997, 2014, 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 *
92 bool is_method_handle() const { return _tag == JVM_CONSTANT_MethodHandle; }
93 bool is_invoke_dynamic() const { return _tag == JVM_CONSTANT_InvokeDynamic; }
94
95 bool is_loadable_constant() const {
96 return ((_tag >= JVM_CONSTANT_Integer && _tag <= JVM_CONSTANT_String) ||
97 is_method_type() || is_method_handle() ||
98 is_unresolved_klass());
99 }
100
101 constantTag() {
102 _tag = JVM_CONSTANT_Invalid;
103 }
104 constantTag(jbyte tag) {
105 assert((tag >= 0 && tag <= JVM_CONSTANT_NameAndType) ||
106 (tag >= JVM_CONSTANT_MethodHandle && tag <= JVM_CONSTANT_InvokeDynamic) ||
107 (tag >= JVM_CONSTANT_InternalMin && tag <= JVM_CONSTANT_InternalMax), "Invalid constant tag");
108 _tag = tag;
109 }
110
111 jbyte value() const { return _tag; }
112 jbyte error_value() const;
113 jbyte non_error_value() const;
114
115 BasicType basic_type() const; // if used with ldc, what kind of value gets pushed?
116
117 const char* internal_name() const; // for error reporting
118
119 void print_on(outputStream* st) const PRODUCT_RETURN;
120 };
121
122 #endif // SHARE_VM_UTILITIES_CONSTANTTAG_HPP
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