001    /*
002     $Id: CastExpression.java,v 1.6 2005/02/24 15:33:31 jstrachan Exp $
003    
004     Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
005    
006     Redistribution and use of this software and associated documentation
007     ("Software"), with or without modification, are permitted provided
008     that the following conditions are met:
009    
010     1. Redistributions of source code must retain copyright
011        statements and notices.  Redistributions must also contain a
012        copy of this document.
013    
014     2. Redistributions in binary form must reproduce the
015        above copyright notice, this list of conditions and the
016        following disclaimer in the documentation and/or other
017        materials provided with the distribution.
018    
019     3. The name "groovy" must not be used to endorse or promote
020        products derived from this Software without prior written
021        permission of The Codehaus.  For written permission,
022        please contact info@codehaus.org.
023    
024     4. Products derived from this Software may not be called "groovy"
025        nor may "groovy" appear in their names without prior written
026        permission of The Codehaus. "groovy" is a registered
027        trademark of The Codehaus.
028    
029     5. Due credit should be given to The Codehaus -
030        http://groovy.codehaus.org/
031    
032     THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
033     ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
034     NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
035     FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
036     THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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044    
045     */
046    package org.codehaus.groovy.ast.expr;
047    
048    import org.codehaus.groovy.ast.GroovyCodeVisitor;
049    import org.codehaus.groovy.classgen.AsmClassGenerator;
050    
051    /**
052     * Represents a type cast expression
053     * 
054     * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
055     * @version $Revision: 1.6 $
056     */
057    public class CastExpression extends Expression {
058        
059        private Expression expression;
060        private boolean ignoreAutoboxing=false;
061        private boolean coerce = false;
062    
063        public static CastExpression asExpression(String typeName, Expression expression) {
064            CastExpression answer = new CastExpression(typeName, expression);
065            answer.setCoerce(true);
066            return answer;
067        }
068    
069        public CastExpression(String type, Expression expression) {
070            super.setType(type);
071            this.expression = expression;
072        }
073    
074        public CastExpression(String type, Expression expression, boolean ignoreAutoboxing) {
075            super.setType(type);
076            this.expression = expression;
077            this.ignoreAutoboxing = ignoreAutoboxing;
078        }
079        
080        public boolean isIgnoringAutoboxing(){
081            return ignoreAutoboxing;
082        }
083    
084        public boolean isCoerce() {
085            return coerce;
086        }
087    
088        public void setCoerce(boolean coerce) {
089            this.coerce = coerce;
090        }
091    
092        public String toString() {
093            return super.toString() +"[(" + type + ") " + expression + "]";
094        }
095    
096        public void visit(GroovyCodeVisitor visitor) {
097            visitor.visitCastExpression(this);
098        }
099    
100        public Expression transformExpression(ExpressionTransformer transformer) {
101            return new CastExpression(type, transformer.transform(expression));
102        }
103        
104        public String getText() {
105            return "(" + type + ") " + expression.getText();
106        }
107    
108        public Expression getExpression() {
109            return expression;
110        }
111    
112        protected  void resolveType(AsmClassGenerator resolver) {
113            //To change body of implemented methods use File | Settings | File Templates.
114        }
115    
116    }