Coverage Report - com.puppycrawl.tools.checkstyle.checks.whitespace.WhitespaceAfterCheck
 
Classes in this File Line Coverage Branch Coverage Complexity
WhitespaceAfterCheck
95%
19/20
90%
18/20
7
 
 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.whitespace;
 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 that a token is followed by whitespace, with the exception that it
 28  
  * does not check for whitespace after the semicolon of an empty for iterator.
 29  
  * Use Check {@link EmptyForIteratorPadCheck EmptyForIteratorPad} to validate
 30  
  * empty for iterators.
 31  
  * </p>
 32  
  * <p> By default the check will check the following tokens:
 33  
  *  {@link TokenTypes#COMMA COMMA},
 34  
  *  {@link TokenTypes#SEMI SEMI},
 35  
  *  {@link TokenTypes#TYPECAST TYPECAST}.
 36  
  * </p>
 37  
  * <p>
 38  
  * An example of how to configure the check is:
 39  
  * </p>
 40  
  * <pre>
 41  
  * &lt;module name="WhitespaceAfter"/&gt;
 42  
  * </pre>
 43  
  * <p> An example of how to configure the check for whitespace only after
 44  
  * {@link TokenTypes#COMMA COMMA} and {@link TokenTypes#SEMI SEMI} tokens is:
 45  
  * </p>
 46  
  * <pre>
 47  
  * &lt;module name="WhitespaceAfter"&gt;
 48  
  *     &lt;property name="tokens" value="COMMA, SEMI"/&gt;
 49  
  * &lt;/module&gt;
 50  
  * </pre>
 51  
  * @author Oliver Burn
 52  
  * @author Rick Giles
 53  
  * @version 1.0
 54  
  */
 55  6
 public class WhitespaceAfterCheck
 56  
     extends Check
 57  
 {
 58  
     @Override
 59  
     public int[] getDefaultTokens()
 60  
     {
 61  6
         return new int[] {
 62  
             TokenTypes.COMMA,
 63  
             TokenTypes.SEMI,
 64  
             TokenTypes.TYPECAST,
 65  
         };
 66  
     }
 67  
 
 68  
     @Override
 69  
     public void visitToken(DetailAST aAST)
 70  
     {
 71  
         final Object[] message;
 72  
         final DetailAST targetAST;
 73  202
         if (aAST.getType() == TokenTypes.TYPECAST) {
 74  5
             targetAST = aAST.findFirstToken(TokenTypes.RPAREN);
 75  
             // TODO: i18n
 76  5
             message = new Object[]{"cast"};
 77  
         }
 78  
         else {
 79  197
             targetAST = aAST;
 80  197
             message = new Object[]{aAST.getText()};
 81  
         }
 82  202
         final String line = getLines()[targetAST.getLineNo() - 1];
 83  202
         final int after =
 84  
             targetAST.getColumnNo() + targetAST.getText().length();
 85  
 
 86  202
         if (after < line.length()) {
 87  
 
 88  81
             final char charAfter = line.charAt(after);
 89  81
             if ((targetAST.getType() == TokenTypes.SEMI)
 90  
                 && ((charAfter == ';') || (charAfter == ')')))
 91  
             {
 92  4
                 return;
 93  
             }
 94  77
             if (!Character.isWhitespace(charAfter)) {
 95  
                 //empty FOR_ITERATOR?
 96  11
                 if (targetAST.getType() == TokenTypes.SEMI) {
 97  5
                     final DetailAST sibling =
 98  
                         targetAST.getNextSibling();
 99  5
                     if ((sibling != null)
 100  
                         && (sibling.getType() == TokenTypes.FOR_ITERATOR)
 101  
                         && (sibling.getChildCount() == 0))
 102  
                     {
 103  0
                         return;
 104  
                     }
 105  
                 }
 106  11
                 log(targetAST.getLineNo(),
 107  
                     targetAST.getColumnNo() + targetAST.getText().length(),
 108  
                     "ws.notFollowed",
 109  
                     message);
 110  
             }
 111  
         }
 112  198
     }
 113  
 }