/*
 ***** BEGIN LICENSE BLOCK *****
 * Version: EPL 2.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Eclipse Public
 * 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.eclipse.org/legal/epl-v20.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) 2002 Benoit Cerrina <b.cerrina@wanadoo.fr>
 * Copyright (C) 2002 Jan Arne Petersen <jpetersen@uni-bonn.de>
 * Copyright (C) 2004 Charles O Nutter <headius@headius.com>
 * Copyright (C) 2004 Thomas E Enebo <enebo@acm.org>
 * Copyright (C) 2004 Anders Bengtsson <ndrsbngtssn@yahoo.se>
 * 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"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * use your version of this file under the terms of the EPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the EPL, the GPL or the LGPL.
 ***** END LICENSE BLOCK *****/

package org.jruby.ast;

import java.util.List;

import org.jruby.RubySymbol;
import org.jruby.ast.types.INameNode;
import org.jruby.ast.visitor.NodeVisitor;
import org.jruby.lexer.yacc.ISourcePosition;

Represents an assignment to a global variable.
/**
 * Represents an assignment to a global variable.
 */
public class GlobalAsgnNode extends AssignableNode implements INameNode {
    private RubySymbol name;

    public GlobalAsgnNode(ISourcePosition position, RubySymbol name, Node valueNode) {
        super(position, valueNode, valueNode != null && valueNode.containsVariableAssignment());

        this.name = name;
    }

    public NodeType getNodeType() {
        return NodeType.GLOBALASGNNODE;
    }
    
    
RubyMethod used by visitors.
accepts the visitor 
Params:
iVisitor – the visitor to accept/**
     * RubyMethod used by visitors.
     * accepts the visitor 
     * @param iVisitor the visitor to accept
     **/
    public <T> T accept(NodeVisitor<T> iVisitor) {
        return iVisitor.visitGlobalAsgnNode(this);
    }
    
Gets the name.
Returns:
Returns a String/**
     * Gets the name.
     * @return Returns a String
     */
    public RubySymbol getName() {
        return name;
    }
    
    public List<Node> childNodes() {
        return createList(getValueNode());
    }

    @Override
    public boolean needsDefinitionCheck() {
        return false;
    }
}