Source code: com/puppycrawl/tools/checkstyle/checks/usage/transmogrify/PrimitiveClasses.java
1
2 // Transmogrify License
3 //
4 // Copyright (c) 2001, ThoughtWorks, Inc.
5 // All rights reserved.
6 // Redistribution and use in source and binary forms, with or without
7 // modification, are permitted provided that the following conditions
8 // are met:
9 // - Redistributions of source code must retain the above copyright notice,
10 // this list of conditions and the following disclaimer.
11 // - Redistributions in binary form must reproduce the above copyright
12 // notice, this list of conditions and the following disclaimer in the
13 // documentation and/or other materials provided with the distribution.
14 // Neither the name of the ThoughtWorks, Inc. nor the names of its
15 // contributors may be used to endorse or promote products derived from this
16 // software without specific prior written permission.
17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
19 // TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 // OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 // WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 // OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
27 // ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28
29 package com.puppycrawl.tools.checkstyle.checks.usage.transmogrify;
30
31 import java.util.ArrayList;
32 import java.util.List;
33
34 public class PrimitiveClasses {
35
36 public static ExternalClass BOOLEAN = new ExternalClass(Boolean.TYPE);
37 public static ExternalClass CHAR = new ExternalClass(Character.TYPE);
38 public static ExternalClass BYTE = new ExternalClass(Byte.TYPE);
39 public static ExternalClass SHORT = new ExternalClass(Short.TYPE);
40 public static ExternalClass INT = new ExternalClass(Integer.TYPE);
41 public static ExternalClass LONG = new ExternalClass(Long.TYPE);
42 public static ExternalClass FLOAT = new ExternalClass(Float.TYPE);
43 public static ExternalClass DOUBLE = new ExternalClass(Double.TYPE);
44
45 private static List order;
46
47 static {
48 order = new ArrayList();
49 order.add(DOUBLE);
50 order.add(FLOAT);
51 order.add(LONG);
52 order.add(INT);
53 order.add(SHORT);
54 order.add(BYTE);
55 }
56
57 public static boolean typesAreCompatible(ExternalClass hole,
58 ExternalClass peg) {
59 boolean result = false;
60
61 if (hole.equals(BOOLEAN)) {
62 result = peg.equals(BOOLEAN);
63 }
64 else if (hole.equals(CHAR)) {
65 result = peg.equals(CHAR);
66 }
67 else if (peg.equals(CHAR)) {
68 result = (hole.equals(CHAR) ||
69 order.indexOf(hole) <= order.indexOf(INT));
70 }
71 else {
72 result = (order.indexOf(hole) <= order.indexOf(peg));
73 }
74
75 return result;
76 }
77
78 public static IClass unaryPromote(IClass type) {
79 IClass result = type;
80
81 if (type.equals(BYTE) || type.equals(SHORT) || type.equals(CHAR)) {
82 result = INT;
83 }
84
85 return result;
86 }
87
88 public static IClass binaryPromote(IClass a, IClass b) {
89 IClass result = null;
90
91 if (a.equals(DOUBLE) || b.equals(DOUBLE)) {
92 result = DOUBLE;
93 }
94 else if (a.equals(FLOAT) || b.equals(FLOAT)) {
95 result = FLOAT;
96 }
97 else if (a.equals(LONG) || b.equals(LONG)) {
98 result = LONG;
99 }
100 else {
101 result = INT;
102 }
103
104 return result;
105 }
106
107 }