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,
037 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
038 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
039 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
040 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
041 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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.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 }