| /* |
| * 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 java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.codehaus.groovy.ast.ASTNode; |
| import org.codehaus.groovy.ast.ClassHelper; |
| import org.codehaus.groovy.ast.ClassNode; |
| |
| /** |
| * Represents a base class for expressions which evaluate as an object |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> |
| * @version $Revision$ |
| */ |
| public abstract class Expression extends ASTNode { |
| |
| private ClassNode type=ClassHelper.DYNAMIC_TYPE; |
| |
| /** |
| * Return a copy of the expression calling the transformer on any nested expressions |
| * @param transformer |
| */ |
| public abstract Expression transformExpression(ExpressionTransformer transformer); |
| |
| /** |
| * Transforms the list of expressions |
| * @return a new list of transformed expressions |
| */ |
| protected List transformExpressions(List expressions, ExpressionTransformer transformer) { |
| List list = new ArrayList(expressions.size()); |
| for (Iterator iter = expressions.iterator(); iter.hasNext(); ) { |
| list.add(transformer.transform((Expression) iter.next())); |
| } |
| return list; |
| } |
| |
| public ClassNode getType() { |
| return type; |
| } |
| |
| public void setType(ClassNode t) { |
| type=t; |
| } |
| } |