001    /*
002     $Id: CastExpression.java 3982 2006-08-14 20:18:35Z blackdrag $
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,
037     INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
038     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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042     ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
043     OF THE POSSIBILITY OF SUCH DAMAGE.
044    
045     */
046    package org.codehaus.groovy.ast.expr;
047    
048    import org.codehaus.groovy.ast.ClassNode;
049    import org.codehaus.groovy.ast.GroovyCodeVisitor;
050    
051    /**
052     * Represents a type cast expression
053     * 
054     * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
055     * @version $Revision: 3982 $
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(ClassNode type, Expression expression) {
064            CastExpression answer = new CastExpression(type, expression);
065            answer.setCoerce(true);
066            return answer;
067        }
068    
069        public CastExpression(ClassNode type, Expression expression) {
070            this(type,expression,false);
071        }
072    
073        public CastExpression(ClassNode type, Expression expression, boolean ignoreAutoboxing) {
074            super.setType(type);
075            this.expression = expression;
076            this.ignoreAutoboxing = ignoreAutoboxing;
077        }
078        
079        public boolean isIgnoringAutoboxing(){
080            return ignoreAutoboxing;
081        }
082    
083        public boolean isCoerce() {
084            return coerce;
085        }
086    
087        public void setCoerce(boolean coerce) {
088            this.coerce = coerce;
089        }
090    
091        public String toString() {
092            return super.toString() +"[(" + getType().getName() + ") " + expression + "]";
093        }
094    
095        public void visit(GroovyCodeVisitor visitor) {
096            visitor.visitCastExpression(this);
097        }
098    
099        public Expression transformExpression(ExpressionTransformer transformer) {
100            CastExpression ret =  new CastExpression(getType(), transformer.transform(expression));
101            ret.setSourcePosition(this);
102            ret.setCoerce(this.isCoerce());
103            return ret;
104        }
105        
106        public String getText() {
107            return "(" + getType() + ") " + expression.getText();
108        }
109     
110        public Expression getExpression() {
111            return expression;
112        }
113        
114        public void setType(ClassNode t) {
115            super.setType(t);
116        }
117    
118    }