1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.bcel.generic;
20
21 import org.apache.bcel.Const;
22
23 /**
24 * Denotes basic type such as int.
25 */
26 public final class BasicType extends Type {
27
28 /**
29 * Gets the BasicType for the given type constant.
30 *
31 * @param type the type constant.
32 * @return the BasicType.
33 * @since 6.0
34 */
35 // @since 6.0 no longer final
36 public static BasicType getType(final byte type) {
37 switch (type) {
38 case Const.T_VOID:
39 return VOID;
40 case Const.T_BOOLEAN:
41 return BOOLEAN;
42 case Const.T_BYTE:
43 return BYTE;
44 case Const.T_SHORT:
45 return SHORT;
46 case Const.T_CHAR:
47 return CHAR;
48 case Const.T_INT:
49 return INT;
50 case Const.T_LONG:
51 return LONG;
52 case Const.T_DOUBLE:
53 return DOUBLE;
54 case Const.T_FLOAT:
55 return FLOAT;
56 default:
57 throw new ClassGenException("Invalid type: " + type);
58 }
59 }
60
61 /**
62 * Constructor for basic types such as int, long, 'void'
63 *
64 * @param type one of T_INT, T_BOOLEAN, ..., T_VOID.
65 * @see Const
66 */
67 BasicType(final byte type) {
68 super(type, Const.getShortTypeName(type));
69 if (type < Const.T_BOOLEAN || type > Const.T_VOID) {
70 throw new ClassGenException("Invalid type: " + type);
71 }
72 }
73
74 /**
75 * @return true if both type objects refer to the same type.
76 */
77 @Override
78 public boolean equals(final Object type) {
79 return type instanceof BasicType && ((BasicType) type).getType() == this.getType();
80 }
81
82 /**
83 * @return a hash code value for the object.
84 */
85 @Override
86 public int hashCode() {
87 return super.getType();
88 }
89 }