| /* |
| * 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.ClassNode; |
| import org.codehaus.groovy.ast.GroovyCodeVisitor; |
| import org.codehaus.groovy.syntax.Token; |
| |
| /** |
| * Represents a prefix expression like ++foo or --bar |
| * |
| * @author <a href="mailto:james@coredevelopers.net">James Strachan</a> |
| * @version $Revision$ |
| */ |
| public class PrefixExpression extends Expression { |
| |
| private Token operation; |
| private Expression expression; |
| |
| public PrefixExpression(Token operation, Expression expression) { |
| this.operation = operation; |
| this.expression = expression; |
| } |
| |
| public String toString() { |
| return super.toString() + "[" + operation + expression + "]"; |
| } |
| |
| public void visit(GroovyCodeVisitor visitor) { |
| visitor.visitPrefixExpression(this); |
| } |
| |
| public Expression transformExpression(ExpressionTransformer transformer) { |
| Expression ret = new PrefixExpression(operation, transformer.transform(expression)); |
| ret.setSourcePosition(this); |
| return ret; |
| } |
| |
| public void setExpression(Expression expression) { |
| this.expression = expression; |
| } |
| |
| public Token getOperation() { |
| return operation; |
| } |
| |
| public Expression getExpression() { |
| return expression; |
| } |
| |
| public String getText() { |
| return "(" + operation.getText() + expression.getText() + ")"; |
| } |
| |
| public ClassNode getType() { |
| return expression.getType(); |
| } |
| |
| } |