Coverage Report - com.puppycrawl.tools.checkstyle.checks.coding.NoFinalizerCheck
 
Classes in this File Line Coverage Branch Coverage Complexity
NoFinalizerCheck
100%
13/13
100%
6/6
1.5
 
 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.coding;
 21  
 
 22  
 import com.puppycrawl.tools.checkstyle.StatelessCheck;
 23  
 import com.puppycrawl.tools.checkstyle.api.AbstractCheck;
 24  
 import com.puppycrawl.tools.checkstyle.api.DetailAST;
 25  
 import com.puppycrawl.tools.checkstyle.api.TokenTypes;
 26  
 
 27  
 /**
 28  
  * Checks that no method having zero parameters is defined
 29  
  * using the name <em>finalize</em>.
 30  
  *
 31  
  * @author fqian@google.com (Feng Qian)
 32  
  * @author smckay@google.com (Steve McKay)
 33  
  * @author lkuehne
 34  
  */
 35  
 @StatelessCheck
 36  11
 public class NoFinalizerCheck extends AbstractCheck {
 37  
 
 38  
     /**
 39  
      * A key is pointing to the warning message text in "messages.properties"
 40  
      * file.
 41  
      */
 42  
     public static final String MSG_KEY = "avoid.finalizer.method";
 43  
 
 44  
     @Override
 45  
     public int[] getDefaultTokens() {
 46  15
         return getAcceptableTokens();
 47  
     }
 48  
 
 49  
     @Override
 50  
     public int[] getAcceptableTokens() {
 51  35
         return new int[] {TokenTypes.METHOD_DEF};
 52  
     }
 53  
 
 54  
     @Override
 55  
     public int[] getRequiredTokens() {
 56  15
         return getAcceptableTokens();
 57  
     }
 58  
 
 59  
     @Override
 60  
     public void visitToken(DetailAST aAST) {
 61  19
         final DetailAST mid = aAST.findFirstToken(TokenTypes.IDENT);
 62  19
         final String name = mid.getText();
 63  
 
 64  19
         if ("finalize".equals(name)) {
 65  
 
 66  2
             final DetailAST params = aAST.findFirstToken(TokenTypes.PARAMETERS);
 67  2
             final boolean hasEmptyParamList =
 68  2
                 params.findFirstToken(TokenTypes.PARAMETER_DEF) == null;
 69  
 
 70  2
             if (hasEmptyParamList) {
 71  1
                 log(aAST.getLineNo(), MSG_KEY);
 72  
             }
 73  
         }
 74  19
     }
 75  
 }