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 }