001 /*
002 $Id: FieldExpression.java,v 1.4 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 org.codehaus.groovy.ast.FieldNode;
049 import org.codehaus.groovy.ast.GroovyCodeVisitor;
050 import org.codehaus.groovy.classgen.AsmClassGenerator;
051
052 /**
053 * Represents a field access such as the expression "this.foo".
054 *
055 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
056 * @version $Revision: 1.4 $
057 */
058 public class FieldExpression extends Expression {
059
060 private FieldNode field;
061
062 public FieldExpression(FieldNode field) {
063 this.field = field;
064 }
065
066 public void visit(GroovyCodeVisitor visitor) {
067 visitor.visitFieldExpression(this);
068 }
069
070 public Expression transformExpression(ExpressionTransformer transformer) {
071 return this;
072 }
073
074 public String getFieldName() {
075 return field.getName();
076 }
077
078 public String getTypeName() {
079 return field.getType();
080 }
081
082 public FieldNode getField() {
083 return field;
084 }
085
086 public String getText() {
087 return "this." + field.getName();
088 }
089
090 public boolean isDynamic() {
091 return field.isDynamicType();
092 }
093
094 public String getType() {
095 return getTypeName();
096 }
097
098 public void setTypeClass(Class typeClass) {
099 super.setTypeClass(typeClass);
100 field.setType(typeClass.getName());
101 }
102
103 public void setType(String type) {
104 super.setType(type);
105 field.setType(type);
106 }
107
108 protected void resolveType(AsmClassGenerator resolver) {
109 String fldType = field.getType();
110 setType(fldType);
111 }
112 }