001 /*
002 $Id: FieldNode.java,v 1.14 2005/05/27 10:13:08 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;
047
048 import java.lang.reflect.Field;
049
050 import org.codehaus.groovy.ast.expr.Expression;
051 import org.codehaus.groovy.classgen.BytecodeHelper;
052 import org.objectweb.asm.Opcodes;
053
054 /**
055 * Represents a field (member variable)
056 *
057 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
058 * @version $Revision: 1.14 $
059 */
060 public class FieldNode extends AnnotatedNode implements Opcodes {
061
062 private String name;
063 private int modifiers;
064 private String type;
065 private String owner;
066 private Expression initialValueExpression;
067 private boolean dynamicType;
068 private boolean holder;
069
070 public static FieldNode newStatic(Class theClass, String name) throws SecurityException, NoSuchFieldException {
071 Field field = theClass.getField(name);
072 String fldType = field.getType().getName();
073 return new FieldNode(name, ACC_PUBLIC | ACC_STATIC, fldType, theClass.getName(), null);
074 }
075
076 public FieldNode(String name, int modifiers, String type, ClassNode owner, Expression initialValueExpression) {
077 this(name, modifiers, type, owner.getName(), initialValueExpression);
078 }
079
080 public FieldNode(String name, int modifiers, String type, String owner, Expression initialValueExpression) {
081 this.name = name;
082 this.modifiers = modifiers;
083 this.type = type;
084 this.owner = owner;
085 this.initialValueExpression = initialValueExpression;
086 if (type == null || type.length() == 0) {
087 this.dynamicType = true;
088 if (initialValueExpression != null) {
089 String initType = initialValueExpression.getType();
090 if (initType != null && initType.length() > 0){
091 this.type = initType;
092 // this.dynamicType = false;
093 }
094 else {
095 this.type = "java.lang.Object";
096 // this.dynamicType = true;
097 }
098 }
099 else {
100 this.type = "java.lang.Object";
101 // this.dynamicType = true;
102 }
103 }
104 else {
105 String boxedType = BytecodeHelper.getObjectTypeForPrimitive(type);
106 this.type = boxedType;
107 dynamicType = false;
108 }
109 }
110
111 public Expression getInitialValueExpression() {
112 return initialValueExpression;
113 }
114
115 public int getModifiers() {
116 return modifiers;
117 }
118
119 public String getName() {
120 return name;
121 }
122
123 public String getType() {
124 return type;
125 }
126
127 public void setType(String type) {
128 this.type = type;
129 }
130
131 public String getOwner() {
132 return owner;
133 }
134
135 public boolean isHolder() {
136 return holder;
137 }
138
139 public void setHolder(boolean holder) {
140 this.holder = holder;
141 }
142
143 public boolean isDynamicType() {
144 return dynamicType;
145 }
146
147 public void setModifiers(int modifiers) {
148 this.modifiers = modifiers;
149 }
150
151 /**
152 * @return true if the field is static
153 */
154 public boolean isStatic() {
155 return (modifiers & ACC_STATIC) != 0;
156 }
157 /**
158 * @param owner The owner to set.
159 */
160 public void setOwner(String owner) {
161 this.owner = owner;
162 }
163 }