Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
AssignHandler |
|
| 3.5;3.5 |
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 assignements. | |
26 | * | |
27 | * @author o_sukhodolsky | |
28 | */ | |
29 | public class AssignHandler 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 AssignHandler(IndentationCheck aIndentCheck, | |
40 | DetailAST aAst, ExpressionHandler aParent) | |
41 | { | |
42 | 193 | super(aIndentCheck, "assign", aAst, aParent); |
43 | 193 | } |
44 | ||
45 | @Override | |
46 | public void checkIndentation() | |
47 | { | |
48 | 193 | final IndentLevel expectedLevel = getChildrenExpectedLevel(); |
49 | ||
50 | // check indentation of assign if it starts line | |
51 | 193 | final DetailAST assign = getMainAst(); |
52 | 193 | if (startsLine(assign) |
53 | && !expectedLevel.accept(expandedTabsColumnNo(assign))) | |
54 | { | |
55 | 1 | logError(assign, "" , expandedTabsColumnNo(assign), expectedLevel); |
56 | } | |
57 | ||
58 | // check indentation of rvalue | |
59 | 193 | DetailAST child = assign.getFirstChild(); |
60 | ||
61 | // if this is assign in expression then skip first child, | |
62 | // because it's lvalue. | |
63 | 193 | final DetailAST parent = assign.getParent(); |
64 | 193 | if ((parent != null) && (parent.getType() == TokenTypes.EXPR)) { |
65 | 24 | child = child.getNextSibling(); |
66 | } | |
67 | 193 | if ((parent != null) |
68 | && (parent.getType() == TokenTypes.ANNOTATION_MEMBER_VALUE_PAIR)) | |
69 | { | |
70 | 2 | child = assign.getNextSibling(); |
71 | } | |
72 | ||
73 | 193 | checkExpressionSubtree(child, expectedLevel, false, true); |
74 | 193 | } |
75 | ||
76 | @Override | |
77 | protected boolean shouldIncreaseIndent() | |
78 | { | |
79 | 8 | return false; |
80 | } | |
81 | ||
82 | @Override | |
83 | public IndentLevel suggestedChildLevel(ExpressionHandler aChild) | |
84 | { | |
85 | 11 | final DetailAST assign = getMainAst(); |
86 | 11 | final DetailAST child = aChild.getMainAst(); |
87 | ||
88 | 11 | if (child == assign.getFirstChild()) { |
89 | // left side of assignment should have the same | |
90 | // indentation as "assignment" | |
91 | 0 | return getLevel(); |
92 | } | |
93 | 11 | if (startsLine(assign)) { |
94 | 0 | return new IndentLevel(expandedTabsColumnNo(assign)); |
95 | } | |
96 | 11 | return super.suggestedChildLevel(aChild); |
97 | } | |
98 | } |