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

 Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.

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 ("Software"), with or without modification, are permitted provided
 that the following conditions are met:

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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;

/**
 * Represents a spread map expression *:m
 *         in the map expression [1, *:m, 2, "c":100]
 *      or in the method invoke expression func(1, *:m, 2, "c":100).
 * 
 * @version $Revision: 3419 $
 */
public class SpreadMapExpression extends Expression {

    private Expression expression;
	
    public SpreadMapExpression(Expression expression) {
        this.expression = expression;
    }

    public Expression getExpression() {
        return expression;
    }

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

    public Expression transformExpression(ExpressionTransformer transformer) {
        Expression ret = new SpreadMapExpression(transformer.transform(expression)); 
        ret.setSourcePosition(this);
        return ret;
    }

    public String getText() {
	return "*:" + expression.getText();
    }

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