Coverage Report - com.puppycrawl.tools.checkstyle.checks.coding.AvoidInlineConditionalsCheck
 
Classes in this File Line Coverage Branch Coverage Complexity
AvoidInlineConditionalsCheck
100%
6/6
N/A
1
 
 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  
  * Detects inline conditionals.
 29  
  *
 30  
  * <p>An example inline conditional is this:
 31  
  * <pre>
 32  
  * String a = getParameter("a");
 33  
  * String b = (a==null || a.length&lt;1) ? null : a.substring(1);
 34  
  * </pre>
 35  
  * Rationale: Some developers find inline conditionals hard to read,
 36  
  * so their company's coding standards forbids them.
 37  
  *
 38  
  * @author lkuehne
 39  
  */
 40  
 @StatelessCheck
 41  9
 public class AvoidInlineConditionalsCheck extends AbstractCheck {
 42  
 
 43  
     /**
 44  
      * A key is pointing to the warning message text in "messages.properties"
 45  
      * file.
 46  
      */
 47  
     public static final String MSG_KEY = "inline.conditional.avoid";
 48  
 
 49  
     @Override
 50  
     public int[] getDefaultTokens() {
 51  11
         return getRequiredTokens();
 52  
     }
 53  
 
 54  
     @Override
 55  
     public int[] getRequiredTokens() {
 56  27
         return new int[] {TokenTypes.QUESTION};
 57  
     }
 58  
 
 59  
     @Override
 60  
     public int[] getAcceptableTokens() {
 61  5
         return getRequiredTokens();
 62  
     }
 63  
 
 64  
     @Override
 65  
     public void visitToken(DetailAST ast) {
 66  
         // the only place a QUESTION token can occur is in inline conditionals
 67  
         // so no need to do any further tricks here - pretty trivial Check!
 68  
 
 69  3
         log(ast.getLineNo(), ast.getColumnNo(), MSG_KEY);
 70  3
     }
 71  
 }