1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.bcel.generic;
18
19 import org.apache.bcel.Const;
20
21 /**
22 * Denotes basic type such as int.
23 */
24 public final class BasicType extends Type {
25
26 // @since 6.0 no longer final
27 public static BasicType getType(final byte type) {
28 switch (type) {
29 case Const.T_VOID:
30 return VOID;
31 case Const.T_BOOLEAN:
32 return BOOLEAN;
33 case Const.T_BYTE:
34 return BYTE;
35 case Const.T_SHORT:
36 return SHORT;
37 case Const.T_CHAR:
38 return CHAR;
39 case Const.T_INT:
40 return INT;
41 case Const.T_LONG:
42 return LONG;
43 case Const.T_DOUBLE:
44 return DOUBLE;
45 case Const.T_FLOAT:
46 return FLOAT;
47 default:
48 throw new ClassGenException("Invalid type: " + type);
49 }
50 }
51
52 /**
53 * Constructor for basic types such as int, long, 'void'
54 *
55 * @param type one of T_INT, T_BOOLEAN, ..., T_VOID
56 * @see Const
57 */
58 BasicType(final byte type) {
59 super(type, Const.getShortTypeName(type));
60 if (type < Const.T_BOOLEAN || type > Const.T_VOID) {
61 throw new ClassGenException("Invalid type: " + type);
62 }
63 }
64
65 /**
66 * @return true if both type objects refer to the same type
67 */
68 @Override
69 public boolean equals(final Object type) {
70 return type instanceof BasicType && ((BasicType) type).getType() == this.getType();
71 }
72
73 /**
74 * @return a hash code value for the object.
75 */
76 @Override
77 public int hashCode() {
78 return super.getType();
79 }
80 }