1 /*
   2  * Copyright (c) 2000, 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 package sun.jvm.hotspot.runtime;
  26 
  27 /** Encapsulates the BasicType enum in globalDefinitions.hpp in the
  28     VM. */
  29 
  30 public class BasicType {
  31   public static final int tBoolean     = 4;
  32   public static final int tChar        = 5;
  33   public static final int tFloat       = 6;
  34   public static final int tDouble      = 7;
  35   public static final int tByte        = 8;
  36   public static final int tShort       = 9;
  37   public static final int tInt         = 10;
  38   public static final int tLong        = 11;
  39   public static final int tObject      = 12;
  40   public static final int tArray       = 13;
  41   public static final int tVoid        = 14;
  42   public static final int tAddress     = 15;
  43   public static final int tNarrowOop   = 16;
  44   public static final int tMetadata    = 17;
  45   public static final int tNarrowKlass = 18;
  46   public static final int tConflict    = 19;
  47   public static final int tIllegal     = 99;
  48 
  49   public static final BasicType T_BOOLEAN = new BasicType(tBoolean);
  50   public static final BasicType T_CHAR = new BasicType(tChar);
  51   public static final BasicType T_FLOAT = new BasicType(tFloat);
  52   public static final BasicType T_DOUBLE = new BasicType(tDouble);
  53   public static final BasicType T_BYTE = new BasicType(tByte);
  54   public static final BasicType T_SHORT = new BasicType(tShort);
  55   public static final BasicType T_INT = new BasicType(tInt);
  56   public static final BasicType T_LONG = new BasicType(tLong);
  57   public static final BasicType T_OBJECT = new BasicType(tObject);
  58   public static final BasicType T_ARRAY = new BasicType(tArray);
  59   public static final BasicType T_VOID = new BasicType(tVoid);
  60   public static final BasicType T_ADDRESS = new BasicType(tAddress);
  61   public static final BasicType T_NARROWOOP = new BasicType(tNarrowOop);
  62   public static final BasicType T_METADATA = new BasicType(tMetadata);
  63   public static final BasicType T_NARROWKLASS = new BasicType(tNarrowKlass);
  64   public static final BasicType T_CONFLICT = new BasicType(tConflict);
  65   public static final BasicType T_ILLEGAL = new BasicType(tIllegal);
  66 
  67   public static int getTBoolean() {
  68     return tBoolean;
  69   }
  70 
  71   public static int getTChar() {
  72     return tChar;
  73   }
  74 
  75   public static int getTFloat() {
  76     return tFloat;
  77   }
  78 
  79   public static int getTDouble() {
  80     return tDouble;
  81   }
  82 
  83   public static int getTByte() {
  84     return tByte;
  85   }
  86 
  87   public static int getTShort() {
  88     return tShort;
  89   }
  90 
  91   public static int getTInt() {
  92     return tInt;
  93   }
  94 
  95   public static int getTLong() {
  96     return tLong;
  97   }
  98 
  99   public static int getTObject() {
 100     return tObject;
 101   }
 102 
 103   public static int getTArray() {
 104     return tArray;
 105   }
 106 
 107   public static int getTVoid() {
 108     return tVoid;
 109   }
 110 
 111   public static int getTAddress() {
 112     return tAddress;
 113   }
 114 
 115   public static int getTNarrowOop() {
 116     return tNarrowOop;
 117   }
 118 
 119   public static int getTMetadata() {
 120     return tMetadata;
 121   }
 122 
 123   public static int getTNarrowKlass() {
 124     return tNarrowKlass;
 125   }
 126 
 127   /** For stack value type with conflicting contents */
 128   public static int getTConflict() {
 129     return tConflict;
 130   }
 131 
 132   public static int getTIllegal() {
 133     return tIllegal;
 134   }
 135 
 136   public static BasicType charToBasicType(char c) {
 137     switch( c ) {
 138     case 'B': return T_BYTE;
 139     case 'C': return T_CHAR;
 140     case 'D': return T_DOUBLE;
 141     case 'F': return T_FLOAT;
 142     case 'I': return T_INT;
 143     case 'J': return T_LONG;
 144     case 'S': return T_SHORT;
 145     case 'Z': return T_BOOLEAN;
 146     case 'V': return T_VOID;
 147     case 'L': return T_OBJECT;
 148     case '[': return T_ARRAY;
 149     }
 150     return T_ILLEGAL;
 151   }
 152 
 153   public static int charToType(char c) {
 154     return charToBasicType(c).getType();
 155   }
 156 
 157   public int getType() {
 158     return type;
 159   }
 160 
 161   //-- Internals only below this point
 162   private BasicType(int type) {
 163     this.type = type;
 164   }
 165 
 166   private int type;
 167 }
--- EOF ---