001    /*
002     $Id: ConstructorCallExpression.java,v 1.6 2005/02/01 10:46:54 russel 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 java.lang.reflect.Constructor;
049    
050    import org.codehaus.groovy.ast.GroovyCodeVisitor;
051    import org.codehaus.groovy.classgen.AsmClassGenerator;
052    
053    /**
054     * A constructor call
055     * 
056     * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
057     * @version $Revision: 1.6 $
058     */
059    public class ConstructorCallExpression extends Expression {
060    
061        private Expression arguments;
062    
063        public String getTypeToSet() {
064            return typeToSet;
065        }
066    
067        private String typeToSet; // type to be set on the type field. delayed until classgen time to avoid resolving to the current class.
068    
069        public Constructor getConstructor() {
070            return constructor;
071        }
072    
073        private Constructor constructor = null;
074    
075        protected boolean shouldContinue() {
076            if (super.isResolveFailed())
077                return false;
078            if (constructor == null)
079                return true;
080            return false;
081        }
082    
083        public ConstructorCallExpression(String type, Expression arguments) {
084            //super.setType(type);
085            this.typeToSet = type;
086            setTypeResolved(false); // to set it when arguments is resolved
087            this.arguments = arguments;
088        }
089        
090        public void visit(GroovyCodeVisitor visitor) {
091            visitor.visitConstructorCallExpression(this);
092        }
093        
094        public Expression transformExpression(ExpressionTransformer transformer) {
095            return new ConstructorCallExpression(type, transformer.transform(arguments)); 
096        }
097    
098        protected void resolveType(AsmClassGenerator resolver) {
099            arguments.resolve(resolver);
100            if (constructor == null) {
101                resolver.resolve(this);
102            }
103    //        if (getTypeClass() != null)
104    //            setTypeResolved(true);
105    //        else
106    //            resolver.resolve(this);
107        }
108    
109        public String getType() {
110            if (type == null) {
111                if (typeToSet != null && typeToSet.length() > 0) {
112                    return typeToSet;
113                }
114                else {
115                    return "java.lang.Object";
116                }
117            }
118            return type;
119        }
120    
121        public Expression getArguments() {
122            return arguments;
123        }
124    
125        public String getText() {
126            return "new " + type + "(" + arguments.getText() + ")";
127        }
128    
129        public String toString() {
130            return super.toString() + "[type: " + type + " arguments: " + arguments + "]";
131        }
132    
133        public void setConstructor(Constructor ctor) {
134            constructor = ctor;
135            super.setTypeClass(ctor.getDeclaringClass());
136        }
137    }