001 /*
002 $Id: FieldNode.java 3419 2006-01-19 00:07:02Z 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
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.objectweb.asm.Opcodes;
052
053 /**
054 * Represents a field (member variable)
055 *
056 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
057 * @version $Revision: 3419 $
058 */
059 public class FieldNode extends AnnotatedNode implements Opcodes, Variable {
060
061 private String name;
062 private int modifiers;
063 private ClassNode type;
064 private ClassNode owner;
065 private Expression initialValueExpression;
066 private boolean dynamicTyped;
067 private boolean holder;
068 private boolean closureShare = false;
069
070 public static FieldNode newStatic(Class theClass, String name) throws SecurityException, NoSuchFieldException {
071 Field field = theClass.getField(name);
072 ClassNode fldType = ClassHelper.make(field.getType());
073 return new FieldNode(name, ACC_PUBLIC | ACC_STATIC, fldType, ClassHelper.make(theClass), null);
074 }
075
076 public FieldNode(String name, int modifiers, ClassNode type, ClassNode owner, Expression initialValueExpression) {
077 this.name = name;
078 this.modifiers = modifiers;
079 this.type = type;
080 if (this.type==ClassHelper.DYNAMIC_TYPE && initialValueExpression!=null) this.setType(initialValueExpression.getType());
081 this.setType(type);
082 this.owner = owner;
083 this.initialValueExpression = initialValueExpression;
084 }
085
086 public Expression getInitialExpression() {
087 return initialValueExpression;
088 }
089
090 public int getModifiers() {
091 return modifiers;
092 }
093
094 public String getName() {
095 return name;
096 }
097
098 public ClassNode getType() {
099 return type;
100 }
101
102 public void setType(ClassNode type) {
103 this.type = type;
104 dynamicTyped |= type==ClassHelper.DYNAMIC_TYPE;
105 }
106
107 public ClassNode getOwner() {
108 return owner;
109 }
110
111 public boolean isHolder() {
112 return holder;
113 }
114
115 public void setHolder(boolean holder) {
116 this.holder = holder;
117 }
118
119 public boolean isDynamicTyped() {
120 return dynamicTyped;
121 }
122
123 public void setModifiers(int modifiers) {
124 this.modifiers = modifiers;
125 }
126
127 /**
128 * @return true if the field is static
129 */
130 public boolean isStatic() {
131 return (modifiers & ACC_STATIC) != 0;
132 }
133 /**
134 * @param owner The owner to set.
135 */
136 public void setOwner(ClassNode owner) {
137 this.owner = owner;
138 }
139
140 public boolean hasInitialExpression() {
141 return initialValueExpression!=null;
142 }
143
144 public boolean isInStaticContext() {
145 return isStatic();
146 }
147 public Expression getInitialValueExpression() {
148 return initialValueExpression;
149 }
150 public void setInitialValueExpression(Expression initialValueExpression) {
151 this.initialValueExpression = initialValueExpression;
152 }
153
154 public boolean isClosureSharedVariable() {
155 return false;
156 }
157
158 public void setClosureSharedVariable(boolean inClosure) {
159 closureShare = inClosure;
160 }
161 }