Coverage Report - com.puppycrawl.tools.checkstyle.checks.indentation.ForHandler
 
Classes in this File Line Coverage Branch Coverage Complexity
ForHandler
100%
23/23
100%
2/2
1.25
 
 1  
 ////////////////////////////////////////////////////////////////////////////////
 2  
 // checkstyle: Checks Java source code for adherence to a set of rules.
 3  
 // Copyright (C) 2001-2017 the original author or authors.
 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  
 
 20  
 package com.puppycrawl.tools.checkstyle.checks.indentation;
 21  
 
 22  
 import com.puppycrawl.tools.checkstyle.api.DetailAST;
 23  
 import com.puppycrawl.tools.checkstyle.api.TokenTypes;
 24  
 
 25  
 /**
 26  
  * Handler for for loops.
 27  
  *
 28  
  * @author jrichard
 29  
  */
 30  
 public class ForHandler extends BlockParentHandler {
 31  
     /**
 32  
      * Construct an instance of this handler with the given indentation check,
 33  
      * abstract syntax tree, and parent handler.
 34  
      *
 35  
      * @param indentCheck   the indentation check
 36  
      * @param ast           the abstract syntax tree
 37  
      * @param parent        the parent handler
 38  
      */
 39  
     public ForHandler(IndentationCheck indentCheck,
 40  
         DetailAST ast, AbstractExpressionHandler parent) {
 41  33
         super(indentCheck, "for", ast, parent);
 42  33
     }
 43  
 
 44  
     /**
 45  
      * Check the indentation of the parameters of the 'for' loop.
 46  
      */
 47  
     private void checkForParams() {
 48  33
         final IndentLevel expected =
 49  33
             new IndentLevel(getIndent(), getBasicOffset());
 50  33
         final DetailAST init = getMainAst().findFirstToken(TokenTypes.FOR_INIT);
 51  
 
 52  33
         if (init == null) {
 53  
             // for each
 54  5
             final DetailAST forEach =
 55  5
                     getMainAst().findFirstToken(TokenTypes.FOR_EACH_CLAUSE);
 56  5
             checkExpressionSubtree(forEach, expected, false, false);
 57  5
         }
 58  
         else {
 59  28
             checkExpressionSubtree(init, expected, false, false);
 60  
 
 61  28
             final DetailAST cond =
 62  28
                     getMainAst().findFirstToken(TokenTypes.FOR_CONDITION);
 63  28
             checkExpressionSubtree(cond, expected, false, false);
 64  
 
 65  28
             final DetailAST forIterator =
 66  28
                     getMainAst().findFirstToken(TokenTypes.FOR_ITERATOR);
 67  28
             checkExpressionSubtree(forIterator, expected, false, false);
 68  
         }
 69  33
     }
 70  
 
 71  
     @Override
 72  
     public void checkIndentation() {
 73  33
         checkForParams();
 74  33
         super.checkIndentation();
 75  33
         checkWrappingIndentation(getMainAst(), getForLoopRightParen(getMainAst()));
 76  33
     }
 77  
 
 78  
     /**
 79  
      * Returns right parenthesis of for-loop statement.
 80  
      * @param literalForAst
 81  
      *          literal-for ast node(TokenTypes.LITERAL_FOR)
 82  
      * @return right parenthesis of for-loop statement.
 83  
      */
 84  
     private static DetailAST getForLoopRightParen(DetailAST literalForAst) {
 85  33
         return literalForAst.findFirstToken(TokenTypes.RPAREN);
 86  
     }
 87  
 }