/*
 $Id: PostfixExpression.java 3419 2006-01-19 00:07:02Z blackdrag $

 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.

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    products derived from this Software without prior written
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    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
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 */
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 postfix expression like foo++ or bar++
 * 
 * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
 * @version $Revision: 3419 $
 */
public class PostfixExpression extends Expression {

    private Token operation;
    private Expression expression;

    public PostfixExpression(Expression expression, Token operation) {
        this.operation = operation;
        this.expression = expression;
    }

    public String toString() {
        return super.toString() + "[" + expression + operation + "]";
    }

    public void visit(GroovyCodeVisitor visitor) {
        visitor.visitPostfixExpression(this);
    }

    public Expression transformExpression(ExpressionTransformer transformer) {
        Expression ret = new PostfixExpression(transformer.transform(expression), operation); 
        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 "(" + expression.getText() + operation.getText() + ")";
    }

    public ClassNode getType() {
        return expression.getType();
    }

}