Package org.jruby.ast

Source Code of org.jruby.ast.DSymbolNode

/*
***** 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) 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"),
* 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 CPL, indicate your
* decision by deleting the provisions above and replace them with the notice
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* the provisions above, a recipient may use your version of this file under
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***** END LICENSE BLOCK *****/
package org.jruby.ast;

import org.jruby.Ruby;
import org.jruby.RubyString;
import org.jruby.ast.visitor.NodeVisitor;
import org.jruby.evaluator.Instruction;
import org.jruby.lexer.yacc.ISourcePosition;
import org.jruby.runtime.Block;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.util.ByteList;

/**
* Node representing symbol in a form like ':"3jane"'.
*/
public class DSymbolNode extends ListNode {
    /**
     * For mutating from a DStr to a DSym (we just create a new one with same contents).
     *
     * @param node to be copied
     */
    public DSymbolNode(ISourcePosition position, DStrNode node) {
        super(position, NodeType.DSYMBOLNODE);
       
        assert node != null : "node is not null";
       
        addAll(node);
    }
   
    public DSymbolNode(ISourcePosition position) {
        super(position, NodeType.DSYMBOLNODE);
    }

    @Override
    public Instruction accept(NodeVisitor visitor) {
        return visitor.visitDSymbolNode(this);
    }
   
    @Override
    public IRubyObject interpret(Ruby runtime, ThreadContext context, IRubyObject self, Block aBlock) {
        RubyString string = DStrNode.buildDynamicString(runtime, context, self, aBlock, this);
  
        return runtime.newSymbol(string.toString());
    }
}
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