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 }