Coverage Report - com.puppycrawl.tools.checkstyle.checks.coding.DefaultComesLastCheck
 
Classes in this File Line Coverage Branch Coverage Complexity
DefaultComesLastCheck
90%
10/11
83%
5/6
1.75
 
 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.coding;
 20  
 
 21  
 import com.puppycrawl.tools.checkstyle.api.Check;
 22  
 import com.puppycrawl.tools.checkstyle.api.DetailAST;
 23  
 import com.puppycrawl.tools.checkstyle.api.TokenTypes;
 24  
 
 25  
 /**
 26  
  * <p>
 27  
  * Check that the <code>default</code> is after all the <code>case</code>s
 28  
  * in a <code>switch</code> statement.
 29  
  * </p>
 30  
  * <p>
 31  
  * Rationale: Java allows <code>default</code> anywhere within the
 32  
  * <code>switch</code> statement. But if it comes after the last
 33  
  * <code>case</code> then it is more readable.
 34  
  * </p>
 35  
  * <p>
 36  
  * An example of how to configure the check is:
 37  
  * </p>
 38  
  * <pre>
 39  
  * &lt;module name="DefaultComesLast"/&gt;
 40  
  * </pre>
 41  
  * @author o_sukhodolsky
 42  
  */
 43  
 public class DefaultComesLastCheck extends Check
 44  
 {
 45  
     /** Creates new instance of the check. */
 46  
     public DefaultComesLastCheck()
 47  1
     {
 48  
         // do nothing
 49  1
     }
 50  
 
 51  
     @Override
 52  
     public int[] getDefaultTokens()
 53  
     {
 54  1
         return new int[] {
 55  
             TokenTypes.LITERAL_DEFAULT,
 56  
         };
 57  
     }
 58  
 
 59  
     @Override
 60  
     public int[] getAcceptableTokens()
 61  
     {
 62  0
         return getDefaultTokens();
 63  
     }
 64  
 
 65  
     @Override
 66  
     public void visitToken(DetailAST aAST)
 67  
     {
 68  3
         final DetailAST defaultGroupAST = aAST.getParent();
 69  
         //default keywords used in annotations too - not what we're
 70  
         //interested in
 71  3
         if (defaultGroupAST.getType() != TokenTypes.ANNOTATION_FIELD_DEF) {
 72  2
             final DetailAST switchAST = defaultGroupAST.getParent();
 73  2
             final DetailAST lastGroupAST =
 74  
                 switchAST.getLastChild().getPreviousSibling();
 75  
 
 76  2
             if ((defaultGroupAST.getLineNo() != lastGroupAST.getLineNo())
 77  
                 || (defaultGroupAST.getColumnNo()
 78  
                     != lastGroupAST.getColumnNo()))
 79  
             {
 80  1
                 log(aAST, "default.comes.last");
 81  
             }
 82  
         }
 83  3
     }
 84  
 }