////////////////////////////////////////////////////////////////////////////////

 // checkstyle: Checks Java source code for adherence to a set of rules.

 // Copyright (C) 2001-2014  Oliver Burn

 //

 // This library is free software; you can redistribute it and/or

 // modify it under the terms of the GNU Lesser General Public

 // License as published by the Free Software Foundation; either

 // version 2.1 of the License, or (at your option) any later version.

 //

 // This library is distributed in the hope that it will be useful,

 // but WITHOUT ANY WARRANTY; without even the implied warranty of

 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 // Lesser General Public License for more details.

 //

 // You should have received a copy of the GNU Lesser General Public

 // License along with this library; if not, write to the Free Software

 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

 ////////////////////////////////////////////////////////////////////////////////

 package com.puppycrawl.tools.checkstyle.checks.indentation;

 import com.puppycrawl.tools.checkstyle.api.DetailAST;

 import com.puppycrawl.tools.checkstyle.api.TokenTypes;

 /**

  * Handler for for loops.

  *

  * @author jrichard

  */

 public class ForHandler extends BlockParentHandler

 {

     /**

      * Construct an instance of this handler with the given indentation check,

      * abstract syntax tree, and parent handler.

      *

      * @param aIndentCheck   the indentation check

      * @param aAst           the abstract syntax tree

      * @param aParent        the parent handler

      */

     public ForHandler(IndentationCheck aIndentCheck,

         DetailAST aAst, ExpressionHandler aParent)

     {

         super(aIndentCheck, "for", aAst, aParent);

     }

     /**

      * Check the indentation of the parameters of the 'for' loop.

      */

     private void checkForParams()

     {

         final IndentLevel expected =

             new IndentLevel(getLevel(), getBasicOffset());

         final DetailAST init = getMainAst().findFirstToken(TokenTypes.FOR_INIT);

         if (init != null) {

             checkExpressionSubtree(init, expected, false, false);

             final DetailAST cond =

                 getMainAst().findFirstToken(TokenTypes.FOR_CONDITION);

             checkExpressionSubtree(cond, expected, false, false);

             final DetailAST iter =

                 getMainAst().findFirstToken(TokenTypes.FOR_ITERATOR);

             checkExpressionSubtree(iter, expected, false, false);

         }

         // for each

         else {

             final DetailAST forEach =

                 getMainAst().findFirstToken(TokenTypes.FOR_EACH_CLAUSE);

             checkExpressionSubtree(forEach, expected, false, false);

         }

     }

     @Override

     public void checkIndentation()

     {

         checkForParams();

         super.checkIndentation();

     }

     @Override

     public IndentLevel suggestedChildLevel(ExpressionHandler aChild)

     {

         if (aChild instanceof ElseHandler) {

             return getLevel();

         }

         return super.suggestedChildLevel(aChild);

     }

 }