| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.codehaus.groovy.ast.expr; |
| |
| 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 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 boolean isImplicitThis(){ |
| return implicitThis; |
| } |
| |
| public void setImplicitThis(boolean it) { |
| implicitThis = it; |
| } |
| } |