1 /* 2 * Copyright (c) 1997, 2018, 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 #include "precompiled.hpp" 26 #include "utilities/constantTag.hpp" 27 #include "utilities/ostream.hpp" 28 29 #ifndef PRODUCT 30 31 void constantTag::print_on(outputStream* st) const { 32 st->print("%s", internal_name()); 33 } 34 35 #endif // PRODUCT 36 37 BasicType constantTag::basic_type() const { 38 switch (value()) { 39 case JVM_CONSTANT_Integer : 40 return T_INT; 41 case JVM_CONSTANT_Float : 42 return T_FLOAT; 43 case JVM_CONSTANT_Long : 44 return T_LONG; 45 case JVM_CONSTANT_Double : 46 return T_DOUBLE; 47 48 case JVM_CONSTANT_Class : 49 case JVM_CONSTANT_String : 50 case JVM_CONSTANT_UnresolvedClass : 51 case JVM_CONSTANT_UnresolvedClassInError : 52 case JVM_CONSTANT_ClassIndex : 53 case JVM_CONSTANT_StringIndex : 54 case JVM_CONSTANT_MethodHandle : 55 case JVM_CONSTANT_MethodHandleInError : 56 case JVM_CONSTANT_MethodType : 57 case JVM_CONSTANT_MethodTypeInError : 58 return T_OBJECT; 59 60 case JVM_CONSTANT_Dynamic : 61 case JVM_CONSTANT_DynamicInError : 62 assert(false, "Dynamic constant has no fixed basic type"); 63 64 default: 65 ShouldNotReachHere(); 66 return T_ILLEGAL; 67 } 68 } 69 70 71 jbyte constantTag::non_error_value() const { 72 switch (value()) { 73 case JVM_CONSTANT_UnresolvedClassInError: 74 return JVM_CONSTANT_UnresolvedClass; 75 case JVM_CONSTANT_MethodHandleInError: 76 return JVM_CONSTANT_MethodHandle; 77 case JVM_CONSTANT_MethodTypeInError: 78 return JVM_CONSTANT_MethodType; 79 case JVM_CONSTANT_DynamicInError: 80 return JVM_CONSTANT_Dynamic; 81 default: 82 return value(); 83 } 84 } 85 86 87 jbyte constantTag::error_value() const { 88 switch (value()) { 89 case JVM_CONSTANT_UnresolvedClass: 90 return JVM_CONSTANT_UnresolvedClassInError; 91 case JVM_CONSTANT_MethodHandle: 92 return JVM_CONSTANT_MethodHandleInError; 93 case JVM_CONSTANT_MethodType: 94 return JVM_CONSTANT_MethodTypeInError; 95 case JVM_CONSTANT_Dynamic: 96 return JVM_CONSTANT_DynamicInError; 97 default: 98 ShouldNotReachHere(); 99 return JVM_CONSTANT_Invalid; 100 } 101 } 102 103 const char* constantTag::internal_name() const { 104 switch (value()) { 105 case JVM_CONSTANT_Invalid : 106 return "Invalid index"; 107 case JVM_CONSTANT_Class : 108 return "Class"; 109 case JVM_CONSTANT_Fieldref : 110 return "Field"; 111 case JVM_CONSTANT_Methodref : 112 return "Method"; 113 case JVM_CONSTANT_InterfaceMethodref : 114 return "InterfaceMethod"; 115 case JVM_CONSTANT_String : 116 return "String"; 117 case JVM_CONSTANT_Integer : 118 return "Integer"; 119 case JVM_CONSTANT_Float : 120 return "Float"; 121 case JVM_CONSTANT_Long : 122 return "Long"; 123 case JVM_CONSTANT_Double : 124 return "Double"; 125 case JVM_CONSTANT_NameAndType : 126 return "NameAndType"; 127 case JVM_CONSTANT_MethodHandle : 128 return "MethodHandle"; 129 case JVM_CONSTANT_MethodHandleInError : 130 return "MethodHandle Error"; 131 case JVM_CONSTANT_MethodType : 132 return "MethodType"; 133 case JVM_CONSTANT_MethodTypeInError : 134 return "MethodType Error"; 135 case JVM_CONSTANT_Dynamic : 136 return "Dynamic"; 137 case JVM_CONSTANT_DynamicInError : 138 return "Dynamic Error"; 139 case JVM_CONSTANT_InvokeDynamic : 140 return "InvokeDynamic"; 141 case JVM_CONSTANT_Utf8 : 142 return "Utf8"; 143 case JVM_CONSTANT_UnresolvedClass : 144 return "Unresolved Class"; 145 case JVM_CONSTANT_UnresolvedClassInError : 146 return "Unresolved Class Error"; 147 case JVM_CONSTANT_ClassIndex : 148 return "Unresolved Class Index"; 149 case JVM_CONSTANT_StringIndex : 150 return "Unresolved String Index"; 151 default: 152 ShouldNotReachHere(); 153 return "Illegal"; 154 } 155 } --- EOF ---