Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
DefaultComesLastCheck |
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| 1.75;1.75 |
1 | //////////////////////////////////////////////////////////////////////////////// | |
2 | // checkstyle: Checks Java source code for adherence to a set of rules. | |
3 | // Copyright (C) 2001-2014 Oliver Burn | |
4 | // | |
5 | // This library is free software; you can redistribute it and/or | |
6 | // modify it under the terms of the GNU Lesser General Public | |
7 | // License as published by the Free Software Foundation; either | |
8 | // version 2.1 of the License, or (at your option) any later version. | |
9 | // | |
10 | // This library is distributed in the hope that it will be useful, | |
11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | // Lesser General Public License for more details. | |
14 | // | |
15 | // You should have received a copy of the GNU Lesser General Public | |
16 | // License along with this library; if not, write to the Free Software | |
17 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | //////////////////////////////////////////////////////////////////////////////// | |
19 | package com.puppycrawl.tools.checkstyle.checks.coding; | |
20 | ||
21 | import com.puppycrawl.tools.checkstyle.api.Check; | |
22 | import com.puppycrawl.tools.checkstyle.api.DetailAST; | |
23 | import com.puppycrawl.tools.checkstyle.api.TokenTypes; | |
24 | ||
25 | /** | |
26 | * <p> | |
27 | * Check that the <code>default</code> is after all the <code>case</code>s | |
28 | * in a <code>switch</code> statement. | |
29 | * </p> | |
30 | * <p> | |
31 | * Rationale: Java allows <code>default</code> anywhere within the | |
32 | * <code>switch</code> statement. But if it comes after the last | |
33 | * <code>case</code> then it is more readable. | |
34 | * </p> | |
35 | * <p> | |
36 | * An example of how to configure the check is: | |
37 | * </p> | |
38 | * <pre> | |
39 | * <module name="DefaultComesLast"/> | |
40 | * </pre> | |
41 | * @author o_sukhodolsky | |
42 | */ | |
43 | public class DefaultComesLastCheck extends Check | |
44 | { | |
45 | /** Creates new instance of the check. */ | |
46 | public DefaultComesLastCheck() | |
47 | 1 | { |
48 | // do nothing | |
49 | 1 | } |
50 | ||
51 | @Override | |
52 | public int[] getDefaultTokens() | |
53 | { | |
54 | 1 | return new int[] { |
55 | TokenTypes.LITERAL_DEFAULT, | |
56 | }; | |
57 | } | |
58 | ||
59 | @Override | |
60 | public int[] getAcceptableTokens() | |
61 | { | |
62 | 0 | return getDefaultTokens(); |
63 | } | |
64 | ||
65 | @Override | |
66 | public void visitToken(DetailAST aAST) | |
67 | { | |
68 | 3 | final DetailAST defaultGroupAST = aAST.getParent(); |
69 | //default keywords used in annotations too - not what we're | |
70 | //interested in | |
71 | 3 | if (defaultGroupAST.getType() != TokenTypes.ANNOTATION_FIELD_DEF) { |
72 | 2 | final DetailAST switchAST = defaultGroupAST.getParent(); |
73 | 2 | final DetailAST lastGroupAST = |
74 | switchAST.getLastChild().getPreviousSibling(); | |
75 | ||
76 | 2 | if ((defaultGroupAST.getLineNo() != lastGroupAST.getLineNo()) |
77 | || (defaultGroupAST.getColumnNo() | |
78 | != lastGroupAST.getColumnNo())) | |
79 | { | |
80 | 1 | log(aAST, "default.comes.last"); |
81 | } | |
82 | } | |
83 | 3 | } |
84 | } |