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 intToBasicType(int i) {
137 switch(i) {
138 case tBoolean: return T_BOOLEAN;
139 case tChar: return T_CHAR;
140 case tFloat: return T_FLOAT;
141 case tDouble: return T_DOUBLE;
142 case tByte: return T_BYTE;
143 case tShort: return T_SHORT;
144 case tInt: return T_INT;
145 case tLong: return T_LONG;
146 case tObject: return T_OBJECT;
147 case tArray: return T_ARRAY;
148 case tVoid: return T_VOID;
149 case tAddress: return T_ADDRESS;
150 case tNarrowOop: return T_NARROWOOP;
151 case tMetadata: return T_METADATA;
152 case tNarrowKlass: return T_NARROWKLASS;
153 default: return T_ILLEGAL;
154 }
155 }
156
157 public static BasicType charToBasicType(char c) {
158 switch( c ) {
159 case 'B': return T_BYTE;
160 case 'C': return T_CHAR;
161 case 'D': return T_DOUBLE;
162 case 'F': return T_FLOAT;
163 case 'I': return T_INT;
164 case 'J': return T_LONG;
165 case 'S': return T_SHORT;
166 case 'Z': return T_BOOLEAN;
167 case 'V': return T_VOID;
168 case 'L': return T_OBJECT;
169 case '[': return T_ARRAY;
170 }
171 return T_ILLEGAL;
172 }
173
174 public static int charToType(char c) {
175 return charToBasicType(c).getType();
176 }
177
178 public int getType() {
179 return type;
180 }
181
182 public String getName() {
183 switch (type) {
184 case tBoolean: return "boolean";
185 case tChar: return "char";
186 case tFloat: return "float";
187 case tDouble: return "double";
188 case tByte: return "byte";
189 case tShort: return "short";
190 case tInt: return "int";
191 case tLong: return "long";
192 case tObject: return "object";
193 case tArray: return "array";
194 case tVoid: return "void";
195 case tAddress: return "address";
196 case tNarrowOop: return "narrow oop";
197 case tMetadata: return "metadata";
198 case tNarrowKlass: return "narrow klass";
199 case tConflict: return "conflict";
200 default: return "ILLEGAL TYPE";
201 }
202 }
203
204 //-- Internals only below this point
205 private BasicType(int type) {
206 this.type = type;
207 }
208
209 private int type;
210 }