Coverage Report - com.puppycrawl.tools.checkstyle.checks.coding.ArrayTrailingCommaCheck
 
Classes in this File Line Coverage Branch Coverage Complexity
ArrayTrailingCommaCheck
100%
9/9
100%
6/6
3
 
 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.TokenTypes;
 23  
 import com.puppycrawl.tools.checkstyle.api.DetailAST;
 24  
 
 25  
 /**
 26  
  * <p>
 27  
  * Checks if array initialization contains optional trailing comma.
 28  
  * </p>
 29  
  * <p>
 30  
  * Rationale: Putting this comma in make is easier to change the
 31  
  * order of the elements or add new elements on the end.
 32  
  * </p>
 33  
  * <p>
 34  
  * An example of how to configure the check is:
 35  
  * </p>
 36  
  * <pre>
 37  
  * &lt;module name="ArrayTrailingComma"/&gt;
 38  
  * </pre>
 39  
  * @author o_sukhodolsky
 40  
  */
 41  1
 public class ArrayTrailingCommaCheck extends Check
 42  
 {
 43  
     @Override
 44  
     public int[] getDefaultTokens()
 45  
     {
 46  1
         return new int[] {TokenTypes.ARRAY_INIT};
 47  
     }
 48  
 
 49  
     @Override
 50  
     public void visitToken(DetailAST aArrayInit)
 51  
     {
 52  21
         final DetailAST rcurly = aArrayInit.findFirstToken(TokenTypes.RCURLY);
 53  
 
 54  
         // if curlys are on the same line
 55  
         // or array is empty then check nothing
 56  21
         if ((aArrayInit.getLineNo() == rcurly.getLineNo())
 57  
             || (aArrayInit.getChildCount() == 1))
 58  
         {
 59  16
             return;
 60  
         }
 61  
 
 62  5
         final DetailAST prev = rcurly.getPreviousSibling();
 63  5
         if (prev.getType() != TokenTypes.COMMA) {
 64  3
             log(rcurly.getLineNo(), "array.trailing.comma");
 65  
         }
 66  5
     }
 67  
 }