Source code: com/puppycrawl/tools/checkstyle/checks/indentation/WhileHandler.java
1 ////////////////////////////////////////////////////////////////////////////////
2 // checkstyle: Checks Java source code for adherence to a set of rules.
3 // Copyright (C) 2001-2003 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 while loops.
26 *
27 * @author jrichard
28 */
29 public class WhileHandler 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 WhileHandler(IndentationCheck aIndentCheck,
40 DetailAST aAst, ExpressionHandler aParent)
41 {
42 super(aIndentCheck, "while", aAst, aParent);
43 }
44
45 /**
46 * Check the indentation of the conditional expression.
47 */
48 private void checkCondExpr()
49 {
50 DetailAST condAst = getMainAst().findFirstToken(TokenTypes.EXPR);
51 IndentLevel expected = new IndentLevel(getLevel(), getBasicOffset());
52
53 checkExpressionSubtree(condAst, expected, false, false);
54 }
55
56 /**
57 * Check the indentation of the expression we are handling.
58 */
59 public void checkIndentation()
60 {
61 checkCondExpr();
62 super.checkIndentation();
63 }
64 }