Coverage Report - com.puppycrawl.tools.checkstyle.checks.indentation.AssignHandler
 
Classes in this File Line Coverage Branch Coverage Complexity
AssignHandler
90%
20/22
75%
12/16
3.5
 
 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.indentation;
 20  
 
 21  
 import com.puppycrawl.tools.checkstyle.api.DetailAST;
 22  
 import com.puppycrawl.tools.checkstyle.api.TokenTypes;
 23  
 
 24  
 /**
 25  
  * Handler for assignements.
 26  
  *
 27  
  * @author o_sukhodolsky
 28  
  */
 29  
 public class AssignHandler extends BlockParentHandler
 30  
 {
 31  
     /**
 32  
      * Construct an instance of this handler with the given indentation check,
 33  
      * abstract syntax tree, and parent handler.
 34  
      *
 35  
      * @param aIndentCheck   the indentation check
 36  
      * @param aAst           the abstract syntax tree
 37  
      * @param aParent        the parent handler
 38  
      */
 39  
     public AssignHandler(IndentationCheck aIndentCheck,
 40  
         DetailAST aAst, ExpressionHandler aParent)
 41  
     {
 42  193
         super(aIndentCheck, "assign", aAst, aParent);
 43  193
     }
 44  
 
 45  
     @Override
 46  
     public void checkIndentation()
 47  
     {
 48  193
         final IndentLevel expectedLevel = getChildrenExpectedLevel();
 49  
 
 50  
         // check indentation of assign if it starts line
 51  193
         final DetailAST assign = getMainAst();
 52  193
         if (startsLine(assign)
 53  
             && !expectedLevel.accept(expandedTabsColumnNo(assign)))
 54  
         {
 55  1
             logError(assign, "" , expandedTabsColumnNo(assign), expectedLevel);
 56  
         }
 57  
 
 58  
         // check indentation of rvalue
 59  193
         DetailAST child = assign.getFirstChild();
 60  
 
 61  
         // if this is assign in expression then skip first child,
 62  
         // because it's lvalue.
 63  193
         final DetailAST parent = assign.getParent();
 64  193
         if ((parent != null) && (parent.getType() == TokenTypes.EXPR)) {
 65  24
             child = child.getNextSibling();
 66  
         }
 67  193
         if ((parent != null)
 68  
             && (parent.getType() == TokenTypes.ANNOTATION_MEMBER_VALUE_PAIR))
 69  
         {
 70  2
             child = assign.getNextSibling();
 71  
         }
 72  
 
 73  193
         checkExpressionSubtree(child, expectedLevel, false, true);
 74  193
     }
 75  
 
 76  
     @Override
 77  
     protected boolean shouldIncreaseIndent()
 78  
     {
 79  8
         return false;
 80  
     }
 81  
 
 82  
     @Override
 83  
     public IndentLevel suggestedChildLevel(ExpressionHandler aChild)
 84  
     {
 85  11
         final DetailAST assign = getMainAst();
 86  11
         final DetailAST child = aChild.getMainAst();
 87  
 
 88  11
         if (child == assign.getFirstChild()) {
 89  
             // left side of assignment should have the same
 90  
             // indentation as "assignment"
 91  0
             return getLevel();
 92  
         }
 93  11
         if (startsLine(assign)) {
 94  0
             return new IndentLevel(expandedTabsColumnNo(assign));
 95  
         }
 96  11
         return super.suggestedChildLevel(aChild);
 97  
     }
 98  
 }