Clover coverage report - Drools - 2.0-rc2
Coverage timestamp: Wed May 11 2005 07:12:26 BST
file stats: LOC: 124   Methods: 3
NCLOC: 24   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
PythonExprVisitor.java - 100% 100% 100%
coverage
 1    package org.drools.semantics.python;
 2   
 3    /*
 4    * $Id: PythonExprVisitor.java,v 1.2 2005/02/04 02:13:38 mproctor Exp $
 5    *
 6    * Copyright 2002 (C) The Werken Company. All Rights Reserved.
 7    *
 8    * Redistribution and use of this software and associated documentation
 9    * ("Software"), with or without modification, are permitted provided that the
 10    * following conditions are met:
 11    *
 12    * 1. Redistributions of source code must retain copyright statements and
 13    * notices. Redistributions must also contain a copy of this document.
 14    *
 15    * 2. Redistributions in binary form must reproduce the above copyright notice,
 16    * this list of conditions and the following disclaimer in the documentation
 17    * and/or other materials provided with the distribution.
 18    *
 19    * 3. The name "drools" must not be used to endorse or promote products derived
 20    * from this Software without prior written permission of The Werken Company.
 21    * For written permission, please contact bob@werken.com.
 22    *
 23    * 4. Products derived from this Software may not be called "drools" nor may
 24    * "drools" appear in their names without prior written permission of The Werken
 25    * Company. "drools" is a registered trademark of The Werken Company.
 26    *
 27    * 5. Due credit should be given to The Werken Company.
 28    * (http://drools.werken.com/).
 29    *
 30    * THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS ``AS IS''
 31    * AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 32    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 33    * ARE DISCLAIMED. IN NO EVENT SHALL THE WERKEN COMPANY OR ITS CONTRIBUTORS BE
 34    * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 35    * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 36    * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 37    * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 38    * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 39    * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 40    * POSSIBILITY OF SUCH DAMAGE.
 41    *
 42    */
 43    /*
 44    * (c) Copyright 2001, 2002 Tonic Software, Inc. All Rights Reserved
 45    */
 46   
 47    import java.util.HashSet;
 48    import java.util.Set;
 49   
 50    import org.python.parser.SimpleNode;
 51    import org.python.parser.Visitor;
 52    import org.python.parser.ast.Name;
 53   
 54    /**
 55    * Visits nodes in a Jython parse tree to extract the individual expression
 56    * criteria.
 57    *
 58    * @author <a href="martin@tonic.com">Martin Chilvers </a>
 59    * @author <a href="bob@werken.com">bob mcwhirter </a>
 60    * @author <a href="mailto:christiaan@dacelo.nl">Christiaan ten Klooster </a>
 61    */
 62    public class PythonExprVisitor extends Visitor
 63    {
 64    // ------------------------------------------------------------
 65    // Instance members
 66    // ------------------------------------------------------------
 67   
 68    /** List of the variables as we parse an expression. */
 69    private Set variables;
 70   
 71    // ------------------------------------------------------------
 72    // Constructors
 73    // ------------------------------------------------------------
 74   
 75    /**
 76    * Construct.
 77    */
 78  21 PythonExprVisitor()
 79    {
 80    // intentionally left blank.
 81    }
 82   
 83    // ------------------------------------------------------------
 84    // Instance methods
 85    // ------------------------------------------------------------
 86   
 87    // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 88    // org.python.parser.Visitor
 89    // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 90   
 91    /**
 92    * Visite the node.
 93    *
 94    * @param node The node.
 95    *
 96    * @return Set of variable names.
 97    *
 98    * @throws Exception If an error occurs while traversing.
 99    */
 100  21 public Object eval_input( SimpleNode node ) throws Exception
 101    {
 102  21 variables = new HashSet( );
 103   
 104  21 traverse( node );
 105   
 106  21 return variables;
 107    }
 108   
 109    /**
 110    * Visit a Name node.
 111    *
 112    * @param node The node.
 113    *
 114    * @return The node.
 115    *
 116    * @throws Exception If an error occurs while traversing.
 117    */
 118  26 public Object visitName( Name node ) throws Exception
 119    {
 120  26 variables.add( node.id );
 121   
 122  26 return node;
 123    }
 124    }