/*

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * particular file as subject to the "Classpath" exception as provided

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 */

/*

 * COMPONENT_NAME: idl.parser

 *

 * ORIGINS: 27

 *

 * Licensed Materials - Property of IBM

 * 5639-D57 (C) COPYRIGHT International Business Machines Corp. 1997, 1999

 * RMI-IIOP v1.0

 *

 */

package com.sun.tools.corba.se.idl;

// NOTES:

import java.io.PrintWriter;

import java.util.Hashtable;

import java.util.Vector;

import com.sun.tools.corba.se.idl.constExpr.Expression;

/**

 * This is the symbol table entry for typedefs.

 **/

public class TypedefEntry extends SymtabEntry

{

  protected TypedefEntry ()

  {

    super ();

  } // ctor

  protected TypedefEntry (TypedefEntry that)

  {

    super (that);

    _arrayInfo = (Vector)that._arrayInfo.clone ();

  } // ctor

  protected TypedefEntry (SymtabEntry that, IDLID clone)

  {

    super (that, clone);

    if (module ().equals (""))

      module (name ());

    else if (!name ().equals (""))

      module (module () + "/" + name ());

  } // ctor

  /** This method returns a vector of Expressions, each expression

      represents a dimension in an array.  A zero-length vector indicates

      no array information.*/

  public Vector arrayInfo ()

  {

    return _arrayInfo;

  } // arrayInfo

  public void addArrayInfo (Expression e)

  {

    _arrayInfo.addElement (e);

  } // addArrayInfo

  public Object clone ()

  {

    return new TypedefEntry (this);

  } // clone

  /** Invoke the typedef generator.

      @param symbolTable the symbol table is a hash table whose key is

       a fully qualified type name and whose value is a SymtabEntry or

       a subclass of SymtabEntry.

      @param stream the stream to which the generator should sent its output.

      @see SymtabEntry */

  public void generate (Hashtable symbolTable, PrintWriter stream)

  {

    typedefGen.generate (symbolTable, this, stream);

  } // generate

  public boolean isReferencable()

  {

    // A typedef is referencable if its component

    // type is.

    return type().isReferencable() ;

  }

  public void isReferencable( boolean value )

  {

    // NO-OP: this cannot be set for a typedef.

  }

  /** Access the typedef generator.

      @returns an object which implements the TypedefGen interface.

      @see TypedefGen */

  public Generator generator ()

  {

    return typedefGen;

  } // generator

  private Vector _arrayInfo = new Vector ();

  static  TypedefGen typedefGen;

} // class TypedefEntry