001//////////////////////////////////////////////////////////////////////////////// 002// checkstyle: Checks Java source code for adherence to a set of rules. 003// Copyright (C) 2001-2014 Oliver Burn 004// 005// This library is free software; you can redistribute it and/or 006// modify it under the terms of the GNU Lesser General Public 007// License as published by the Free Software Foundation; either 008// version 2.1 of the License, or (at your option) any later version. 009// 010// This library is distributed in the hope that it will be useful, 011// but WITHOUT ANY WARRANTY; without even the implied warranty of 012// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 013// Lesser General Public License for more details. 014// 015// You should have received a copy of the GNU Lesser General Public 016// License along with this library; if not, write to the Free Software 017// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 018//////////////////////////////////////////////////////////////////////////////// 019package com.puppycrawl.tools.checkstyle.checks.indentation; 020 021import com.puppycrawl.tools.checkstyle.api.DetailAST; 022import com.puppycrawl.tools.checkstyle.api.TokenTypes; 023 024/** 025 * Handler for while loops. 026 * 027 * @author jrichard 028 */ 029public class WhileHandler extends BlockParentHandler 030{ 031 /** 032 * Construct an instance of this handler with the given indentation check, 033 * abstract syntax tree, and parent handler. 034 * 035 * @param indentCheck the indentation check 036 * @param ast the abstract syntax tree 037 * @param parent the parent handler 038 */ 039 public WhileHandler(IndentationCheck indentCheck, 040 DetailAST ast, ExpressionHandler parent) 041 { 042 super(indentCheck, "while", ast, parent); 043 } 044 045 /** 046 * Check the indentation of the conditional expression. 047 */ 048 private void checkCondExpr() 049 { 050 final DetailAST condAst = getMainAst().findFirstToken(TokenTypes.EXPR); 051 final IndentLevel expected = 052 new IndentLevel(getLevel(), getBasicOffset()); 053 checkExpressionSubtree(condAst, expected, false, false); 054 } 055 056 @Override 057 public void checkIndentation() 058 { 059 checkCondExpr(); 060 super.checkIndentation(); 061 } 062}