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src/hotspot/share/utilities/constantTag.cpp

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  1 /*
  2  * Copyright (c) 1997, 2017, 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 (_tag) {
 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 (_tag) {
 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 _tag;
 83   }
 84 }
 85 
 86 
 87 jbyte constantTag::error_value() const {
 88   switch (_tag) {
 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 (_tag) {
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";

  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_Class | (jbyte)JVM_CONSTANT_QDescBit):
110       return "Q-Descriptor";
111     case JVM_CONSTANT_Fieldref :
112       return "Field";
113     case JVM_CONSTANT_Methodref :
114       return "Method";
115     case JVM_CONSTANT_InterfaceMethodref :
116       return "InterfaceMethod";
117     case JVM_CONSTANT_String :
118       return "String";
119     case JVM_CONSTANT_Integer :
120       return "Integer";
121     case JVM_CONSTANT_Float :
122       return "Float";
123     case JVM_CONSTANT_Long :
124       return "Long";
125     case JVM_CONSTANT_Double :
126       return "Double";
127     case JVM_CONSTANT_NameAndType :
128       return "NameAndType";
129     case JVM_CONSTANT_MethodHandle :
130       return "MethodHandle";
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