/***** BEGIN LICENSE BLOCK *****
 * Version: CPL 1.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Common Public
 * License Version 1.0 (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.eclipse.org/legal/cpl-v10.html
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * Copyright (C) 2001-2002 Benoit Cerrina <b.cerrina@wanadoo.fr>
 * Copyright (C) 2001-2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
 * Copyright (C) 2002-2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
 * Copyright (C) 2004 Charles O Nutter <headius@headius.com>
 * Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
 * Copyright (C) 2004 Stefan Matthias Aust <sma@3plus4.de>
 * 
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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package org.jruby.ast;

import org.jruby.ast.visitor.NodeVisitor;
import org.jruby.evaluator.Instruction;
import org.jruby.lexer.yacc.ISourcePosition;

/**
 * A structuring node (linked list of other nodes).
 * This type of node is used to structure the AST.
 * Used in many places it is created throught the
 * {@link org.jruby.parser.ParserSupport#appendToBlock appendToBlock()} method
 * 
 * @author  jpetersen
 */
public class BlockNode extends ListNode {
    static final long serialVersionUID = 6070308619613804520L;
    
    public BlockNode(ISourcePosition position) {
        super(position, NodeTypes.BLOCKNODE);
    }

    /**
     * RubyMethod used by visitors.
     * accepts the visitor
     * @param iVisitor the visitor to accept
     **/
    public Instruction accept(NodeVisitor iVisitor) {
        return iVisitor.visitBlockNode(this);
    }
}