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Groovy: A powerful, dynamic language for the JVM
/*
* 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 James Strachan
* @version $Revision: 6778 $
*/
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;
}
}