| /* |
| $Id$ |
| |
| Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved. |
| |
| Redistribution and use of this software and associated documentation |
| ("Software"), with or without modification, are permitted provided |
| that the following conditions are met: |
| |
| 1. Redistributions of source code must retain copyright |
| statements and notices. Redistributions must also contain a |
| copy of this document. |
| |
| 2. Redistributions in binary form must reproduce the |
| above copyright notice, this list of conditions and the |
| following disclaimer in the documentation and/or other |
| materials provided with the distribution. |
| |
| 3. The name "groovy" must not be used to endorse or promote |
| products derived from this Software without prior written |
| permission of The Codehaus. For written permission, |
| please contact info@codehaus.org. |
| |
| 4. Products derived from this Software may not be called "groovy" |
| nor may "groovy" appear in their names without prior written |
| permission of The Codehaus. "groovy" is a registered |
| trademark of The Codehaus. |
| |
| 5. Due credit should be given to The Codehaus - |
| http://groovy.codehaus.org/ |
| |
| THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS |
| ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT |
| NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
| INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| */ |
| package org.codehaus.groovy.ast.expr; |
| |
| import java.lang.reflect.Field; |
| import java.lang.reflect.Method; |
| import java.lang.reflect.Modifier; |
| |
| import org.codehaus.groovy.ast.ClassHelper; |
| import org.codehaus.groovy.ast.GroovyCodeVisitor; |
| |
| /** |
| * Represents a property access such as the expression "foo.bar". |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> |
| * @version $Revision$ |
| */ |
| public class PropertyExpression extends Expression { |
| |
| private Expression objectExpression; |
| private Expression property; |
| private boolean spreadSafe = false; |
| private boolean safe = false; |
| private boolean isStatic = false; |
| |
| private Method getter = null; |
| private Method setter = null; |
| |
| private Field field = null; |
| private int access = -1; |
| private boolean implicitThis = false; |
| |
| public boolean isStatic() { |
| return isStatic; |
| } |
| |
| public PropertyExpression(Expression objectExpression, String property) { |
| this(objectExpression, new ConstantExpression(property), false); |
| } |
| |
| public PropertyExpression(Expression objectExpression, Expression property) { |
| this(objectExpression, property, false); |
| } |
| |
| public PropertyExpression(Expression objectExpression, Expression property, boolean safe) { |
| this.objectExpression = objectExpression; |
| this.property = property; |
| this.safe = safe; |
| } |
| |
| public void visit(GroovyCodeVisitor visitor) { |
| visitor.visitPropertyExpression(this); |
| } |
| |
| public boolean isDynamic() { |
| return true; |
| } |
| |
| public Expression transformExpression(ExpressionTransformer transformer) { |
| return this; |
| } |
| |
| public Expression getObjectExpression() { |
| return objectExpression; |
| } |
| |
| public void setObjectExpression(Expression exp) { |
| objectExpression=exp; |
| } |
| |
| public Expression getProperty() { |
| return property; |
| } |
| |
| public String getPropertyAsString() { |
| if (property==null) return null; |
| if (! (property instanceof ConstantExpression)) return null; |
| ConstantExpression constant = (ConstantExpression) property; |
| return constant.getText(); |
| } |
| |
| public String getText() { |
| return objectExpression.getText() + "." + property.getText(); |
| } |
| |
| /** |
| * @return is this a safe navigation, i.e. if true then if the source object is null |
| * then this navigation will return null |
| */ |
| public boolean isSafe() { |
| return safe; |
| } |
| |
| public boolean isSpreadSafe() { |
| return spreadSafe; |
| } |
| |
| public void setSpreadSafe(boolean value) { |
| spreadSafe = value; |
| } |
| |
| public String toString() { |
| return super.toString() + "[object: " + objectExpression + " property: " + property + "]"; |
| } |
| |
| public void setStatic(boolean aStatic) { |
| this.isStatic = aStatic; |
| } |
| |
| public Method getGetter() { |
| return getter; |
| } |
| |
| public Method getSetter() { |
| return setter; |
| } |
| |
| public void setField(Field fld) { |
| field = fld; |
| setStatic(Modifier.isStatic(fld.getModifiers())); |
| setType(ClassHelper.make(fld.getType())); |
| } |
| |
| public Field getField() { |
| return field; |
| } |
| |
| public void setAccess(int access) { |
| this.access = access; |
| } |
| |
| public int getAccess() { |
| return access; |
| } |
| |
| public boolean isImplicitThis(){ |
| return implicitThis; |
| } |
| |
| public void setImplicitThis(boolean it) { |
| implicitThis = it; |
| } |
| } |