Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
SlistHandler |
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| 2.888888888888889;2.889 |
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.indentation; | |
20 | ||
21 | import com.puppycrawl.tools.checkstyle.api.DetailAST; | |
22 | import com.puppycrawl.tools.checkstyle.api.TokenTypes; | |
23 | ||
24 | /** | |
25 | * Handler for a list of statements. | |
26 | * | |
27 | * @author jrichard | |
28 | */ | |
29 | public class SlistHandler extends BlockParentHandler | |
30 | { | |
31 | /** | |
32 | * Construct an instance of this handler with the given indentation check, | |
33 | * abstract syntax tree, and parent handler. | |
34 | * | |
35 | * @param aIndentCheck the indentation check | |
36 | * @param aAst the abstract syntax tree | |
37 | * @param aParent the parent handler | |
38 | */ | |
39 | public SlistHandler(IndentationCheck aIndentCheck, | |
40 | DetailAST aAst, ExpressionHandler aParent) | |
41 | { | |
42 | 426 | super(aIndentCheck, "block", aAst, aParent); |
43 | 426 | } |
44 | ||
45 | @Override | |
46 | public IndentLevel suggestedChildLevel(ExpressionHandler aChild) | |
47 | { | |
48 | // this is: | |
49 | // switch (var) { | |
50 | // case 3: { | |
51 | // break; | |
52 | // } | |
53 | // } | |
54 | // ... the case SLIST is followed by a user-created SLIST and | |
55 | // preceded by a switch | |
56 | ||
57 | // if our parent is a block handler we want to be transparent | |
58 | 539 | if (((getParent() instanceof BlockParentHandler) |
59 | && !(getParent() instanceof SlistHandler)) | |
60 | || ((getParent() instanceof CaseHandler) | |
61 | && (aChild instanceof SlistHandler))) | |
62 | { | |
63 | 489 | return getParent().suggestedChildLevel(aChild); |
64 | } | |
65 | 50 | return super.suggestedChildLevel(aChild); |
66 | } | |
67 | ||
68 | @Override | |
69 | protected DetailAST getNonlistChild() | |
70 | { | |
71 | // blocks always have either block children or they are transparent | |
72 | // and aren't checking children at all. In the later case, the | |
73 | // superclass will want to check single children, so when it | |
74 | // does tell it we have none. | |
75 | 0 | return null; |
76 | } | |
77 | ||
78 | @Override | |
79 | protected DetailAST getListChild() | |
80 | { | |
81 | 72 | return getMainAst(); |
82 | } | |
83 | ||
84 | @Override | |
85 | protected DetailAST getLCurly() | |
86 | { | |
87 | 258 | return getMainAst(); |
88 | } | |
89 | ||
90 | @Override | |
91 | protected DetailAST getRCurly() | |
92 | { | |
93 | 220 | return getMainAst().findFirstToken(TokenTypes.RCURLY); |
94 | } | |
95 | ||
96 | @Override | |
97 | protected DetailAST getToplevelAST() | |
98 | { | |
99 | 72 | return null; |
100 | } | |
101 | ||
102 | /** | |
103 | * Determine if the expression we are handling has a block parent. | |
104 | * | |
105 | * @return true if it does, false otherwise | |
106 | */ | |
107 | private boolean hasBlockParent() | |
108 | { | |
109 | 426 | final int parentType = getMainAst().getParent().getType(); |
110 | 426 | return (parentType == TokenTypes.LITERAL_IF) |
111 | || (parentType == TokenTypes.LITERAL_FOR) | |
112 | || (parentType == TokenTypes.LITERAL_WHILE) | |
113 | || (parentType == TokenTypes.LITERAL_DO) | |
114 | || (parentType == TokenTypes.LITERAL_ELSE) | |
115 | || (parentType == TokenTypes.LITERAL_TRY) | |
116 | || (parentType == TokenTypes.LITERAL_CATCH) | |
117 | || (parentType == TokenTypes.LITERAL_FINALLY) | |
118 | || (parentType == TokenTypes.CTOR_DEF) | |
119 | || (parentType == TokenTypes.METHOD_DEF) | |
120 | || (parentType == TokenTypes.STATIC_INIT); | |
121 | } | |
122 | ||
123 | @Override | |
124 | public void checkIndentation() | |
125 | { | |
126 | // only need to check this if parent is not | |
127 | // an if, else, while, do, ctor, method | |
128 | 426 | if (hasBlockParent()) { |
129 | 354 | return; |
130 | } | |
131 | 72 | super.checkIndentation(); |
132 | 72 | } |
133 | } |