org.jruby.truffle.parser.ast.ConstDeclParseNode Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jruby-truffle Show documentation
The newest version!
/*
 ***** BEGIN LICENSE BLOCK *****
 * Version: EPL 1.0/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Eclipse 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/epl-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) 2002 Jan Arne Petersen 
 * Copyright (C) 2002 Benoit Cerrina 
 * Copyright (C) 2002-2004 Anders Bengtsson 
 * Copyright (C) 2004 Thomas E Enebo 
 * 
 * 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
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * 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.truffle.parser.ast;

import org.jruby.truffle.language.SourceIndexLength;
import org.jruby.truffle.parser.ast.types.INameNode;
import org.jruby.truffle.parser.ast.visitor.NodeVisitor;

import java.util.List;

/**
 * Declaration (and assignment) of a Constant.
 */
public class ConstDeclParseNode extends AssignableParseNode implements INameNode {
    private final String name;
    private final INameNode constNode;

    // TODO: Split this into two sub-classes so that name and constNode can be specified seperately.
    public ConstDeclParseNode(SourceIndexLength position, String name, INameNode constNode, ParseNode valueNode) {
        super(position, valueNode, valueNode != null && valueNode.containsVariableAssignment());

        this.name = name;
        this.constNode = constNode;
    }

    public NodeType getNodeType() {
        return NodeType.CONSTDECLNODE;
    }

    /**
     * Accept for the visitor pattern.
     * @param iVisitor the visitor
     **/
    public  T accept(NodeVisitor iVisitor) {
        return iVisitor.visitConstDeclNode(this);
    }

    /**
     * Gets the name (this is the rightmost element of lhs (in Foo::BAR it is BAR).
	 * name is the constant Name, it normally starts with a Capital
     * @return name
     */
    public String getName() {
    	return (name == null ? constNode.getName() : name);
    }

    /**
     * Get the full path, including the name of the new constant (in Foo::BAR it is Foo::BAR) or null.
     * Your probably want to extract the left part with
     * ((Colon2ParseNode) node.getConstNode()).getLeftNode()
     * if node.getConstNode() is a Colon2ConstParseNode.
     * @return pathNode
     */
    public ParseNode getConstNode() {
        return (ParseNode) constNode;
    }

    public List childNodes() {
        return createList(getConstNode(), getValueNode());
    }

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