Clover coverage report - groovy - 1.0-beta-7
Coverage timestamp: Wed Sep 29 2004 16:55:52 BST
file stats: LOC: 239   Methods: 14
NCLOC: 149   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
Expression.java 0% 0% 0% 0%
coverage
 1   
 /*
 2   
  $Id: Expression.java,v 1.3 2004/07/10 03:31:37 bran Exp $
 3   
 
 4   
  Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
 5   
 
 6   
  Redistribution and use of this software and associated documentation
 7   
  ("Software"), with or without modification, are permitted provided
 8   
  that the following conditions are met:
 9   
 
 10   
  1. Redistributions of source code must retain copyright
 11   
     statements and notices.  Redistributions must also contain a
 12   
     copy of this document.
 13   
 
 14   
  2. Redistributions in binary form must reproduce the
 15   
     above copyright notice, this list of conditions and the
 16   
     following disclaimer in the documentation and/or other
 17   
     materials provided with the distribution.
 18   
 
 19   
  3. The name "groovy" must not be used to endorse or promote
 20   
     products derived from this Software without prior written
 21   
     permission of The Codehaus.  For written permission,
 22   
     please contact info@codehaus.org.
 23   
 
 24   
  4. Products derived from this Software may not be called "groovy"
 25   
     nor may "groovy" appear in their names without prior written
 26   
     permission of The Codehaus. "groovy" is a registered
 27   
     trademark of The Codehaus.
 28   
 
 29   
  5. Due credit should be given to The Codehaus -
 30   
     http://groovy.codehaus.org/
 31   
 
 32   
  THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
 33   
  ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 34   
  NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 35   
  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 36   
  THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 37   
  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 38   
  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 39   
  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 40   
  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 41   
  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 42   
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 43   
  OF THE POSSIBILITY OF SUCH DAMAGE.
 44   
 
 45   
  */
 46   
 package org.codehaus.groovy.ast.expr;
 47   
 
 48   
 import java.util.ArrayList;
 49   
 import java.util.Iterator;
 50   
 import java.util.List;
 51   
 
 52   
 import org.codehaus.groovy.ast.ASTNode;
 53   
 import org.codehaus.groovy.classgen.AsmClassGenerator2;
 54   
 import groovy.lang.GroovyRuntimeException;
 55   
 
 56   
 /**
 57   
  * Represents a base class for expressions which evaluate as an object
 58   
  * 
 59   
  * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
 60   
  * @version $Revision: 1.3 $
 61   
  */
 62   
 public abstract class Expression extends ASTNode {
 63   
     protected boolean typeResolved = false;
 64   
 
 65  0
     public boolean isResolveFailed() {
 66  0
         return resolveFailed;
 67   
     }
 68   
 
 69  0
     public void setResolveFailed(boolean resolveFailed) {
 70  0
         this.resolveFailed = resolveFailed;
 71   
     }
 72   
 
 73  0
     public String getFailure() {
 74  0
         return failure;
 75   
     }
 76   
 
 77  0
     public void setFailure(String failure) {
 78  0
         this.failure = failure;
 79   
     }
 80   
 
 81   
     String failure = "";
 82   
     private boolean resolveFailed = false;
 83   
 
 84  0
     public Class getTypeClass() {
 85  0
         return typeClass;
 86   
     }
 87   
 
 88  0
     public void setTypeClass(Class typeClass) {
 89  0
         if (typeClass != null) {
 90  0
             this.typeClass = typeClass;
 91  0
             type = typeClass.getName();
 92  0
             setTypeResolved(true);
 93   
         }
 94   
     }
 95   
 
 96   
     public Class typeClass = null;
 97   
 
 98  0
     public String getType() {
 99  0
         if (type != null){
 100  0
             return type;
 101   
         } else {
 102  0
             Class cls = getTypeClass();
 103  0
             return cls != null? cls.getName() : null;//"java.lang.Object";
 104   
         }
 105   
     }
 106   
 
 107   
     /**
 108   
      * true if the datatype can be changed, false otherwise.
 109   
      * @return
 110   
      */
 111  0
     public boolean isDynamic() {
 112  0
         return true;
 113   
     }
 114   
 
 115   
     protected String type = null;
 116   
     /**
 117   
      * Return a copy of the expression calling the transformer on any nested expressions 
 118   
      * @param transformer
 119   
      * @return
 120   
      */
 121   
     public abstract Expression transformExpression(ExpressionTransformer transformer);
 122   
     
 123   
     /**
 124   
      * Transforms the list of expressions
 125   
      * @return a new list of transformed expressions
 126   
      */
 127  0
     protected List transformExpressions(List expressions, ExpressionTransformer transformer) {
 128  0
         List list = new ArrayList(expressions.size());
 129  0
         for (Iterator iter = expressions.iterator(); iter.hasNext(); ) {
 130  0
             list.add(transformer.transform((Expression) iter.next()));
 131   
         }
 132  0
         return list;
 133   
     }
 134   
 
 135  0
     public void setType(String name) {
 136  0
         if (name == null)
 137  0
             throw new GroovyRuntimeException("cannot set null on type");
 138   
         // handle primitives first
 139  0
         if (name.equals("int")) {
 140  0
             setTypeClass(Integer.TYPE);
 141  0
             return;
 142   
         }
 143  0
         else if (name.equals("long")) {
 144  0
             setTypeClass(Long.TYPE);
 145  0
             return;
 146   
         }
 147  0
         else if (name.equals("short")) {
 148  0
             setTypeClass(Short.TYPE);
 149  0
             return;
 150   
         }
 151  0
         else if (name.equals("float")) {
 152  0
             setTypeClass(Float.TYPE);
 153  0
             return;
 154   
         }
 155  0
         else if (name.equals("double")) {
 156  0
             setTypeClass(Double.TYPE);
 157  0
             return;
 158   
         }
 159  0
         else if (name.equals("byte")) {
 160  0
             setTypeClass(Byte.TYPE);
 161  0
             return;
 162   
         }
 163  0
         else if (name.equals("char")) {
 164  0
             setTypeClass(Character.TYPE);
 165  0
             return;
 166   
         }
 167  0
         else if (name.equals("boolean")) {
 168  0
             setTypeClass(Boolean.TYPE);
 169  0
             return;
 170   
         }
 171   
 
 172  0
         if (name.endsWith("[]")) {
 173  0
             String prefix = "[";
 174  0
             name = name.substring(0, name.length() - 2);
 175   
 
 176  0
             if (name.equals("int")) {
 177  0
                 type = prefix + "I";
 178   
             }
 179  0
             else if (name.equals("long")) {
 180  0
                 type = prefix + "J";
 181   
             }
 182  0
             else if (name.equals("short")) {
 183  0
                 type = prefix + "S";
 184   
             }
 185  0
             else if (name.equals("float")) {
 186  0
                 type = prefix + "F";
 187   
             }
 188  0
             else if (name.equals("double")) {
 189  0
                 type = prefix + "D";
 190   
             }
 191  0
             else if (name.equals("byte")) {
 192  0
                 type = prefix + "B";
 193   
             }
 194  0
             else if (name.equals("char")) {
 195  0
                 type = prefix + "C";
 196   
             }
 197  0
             else if (name.equals("boolean")) {
 198  0
                 type = prefix + "Z";
 199   
             } else {
 200  0
                 type = prefix + "L" + name + ";";
 201   
             }
 202   
         }
 203   
         else {
 204  0
             type = name;
 205   
         }
 206  0
         if (type == null) {
 207  0
             System.out.println("Expression.setType(): null");
 208  0
             System.out.println("name = " + name);
 209   
         }
 210  0
         try {
 211  0
             this.setTypeClass(Class.forName(type, false, this.getClass().getClassLoader()));
 212   
         } catch (Throwable e) {
 213  0
             this.typeResolved = false;
 214   
         }
 215   
     }
 216   
 
 217  0
     public boolean isTypeResolved() {
 218  0
         return typeResolved;
 219   
     }
 220   
 
 221  0
     public void setTypeResolved(boolean b) {
 222  0
         this.typeResolved = b;
 223  0
         this.resolveFailed = false;
 224   
     }
 225   
 
 226  0
     public void resolve(AsmClassGenerator2 cg) {
 227  0
         if (shouldContinue()) {
 228  0
             resolveType(cg);
 229   
         }
 230   
     }
 231   
 
 232   
     protected abstract void resolveType(AsmClassGenerator2 resolver);
 233   
 
 234  0
     protected boolean shouldContinue() {
 235  0
         return !isResolveFailed() && !isTypeResolved();
 236   
     }
 237   
 
 238   
 }
 239