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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 (_tag) {
 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_QDESC_BIT):
 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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