1 /*
   2  * Copyright (c) 1999, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 /*
  26  * COMPONENT_NAME: idl.parser
  27  *
  28  * ORIGINS: 27
  29  *
  30  * Licensed Materials - Property of IBM
  31  * 5639-D57 (C) COPYRIGHT International Business Machines Corp. 1997, 1999
  32  * RMI-IIOP v1.0
  33  *
  34  */
  35 
  36 package com.sun.tools.corba.se.idl;
  37 
  38 // NOTES:
  39 
  40 import java.io.PrintWriter;
  41 import java.util.Hashtable;
  42 
  43 import com.sun.tools.corba.se.idl.constExpr.Expression;
  44 
  45 /**
  46  * This is the symbol table entry for constants.
  47  **/
  48 public class ConstEntry extends SymtabEntry
  49 {
  50   protected ConstEntry ()
  51   {
  52     super ();
  53   } // ctor
  54 
  55   protected ConstEntry (ConstEntry that)
  56   {
  57     super (that);
  58     if (module ().equals (""))
  59       module (name ());
  60     else if (!name ().equals (""))
  61       module (module () + "/" + name ());
  62     _value = that._value;
  63   } // ctor
  64 
  65   /** This is a shallow copy constructor. */
  66   protected ConstEntry (SymtabEntry that, IDLID clone)
  67   {
  68     super (that, clone);
  69     if (module ().equals (""))
  70       module (name ());
  71     else if (!name ().equals (""))
  72       module (module () + "/" + name ());
  73   } // ctor
  74 
  75   /** This is a shallow copy clone. */
  76   public Object clone ()
  77   {
  78     return new ConstEntry (this);
  79   } // clone
  80 
  81   /** Invoke the constant generator.
  82       @param symbolTable the symbol table is a hash table whose key is
  83        a fully qualified type name and whose value is a SymtabEntry or
  84        a subclass of SymtabEntry.
  85       @param stream the stream to which the generator should sent its output.
  86       @see SymtabEntry */
  87   public void generate (Hashtable symbolTable, PrintWriter stream)
  88   {
  89     constGen.generate (symbolTable, this, stream);
  90   } // generate
  91 
  92   /** Access the constant generator.
  93       @return an object which implements the ConstGen interface.
  94       @see ConstGen */
  95   public Generator generator ()
  96   {
  97     return constGen;
  98   } // generator
  99 
 100   public Expression value ()
 101   {
 102     return _value;
 103   } // value
 104 
 105   public void value (Expression newValue)
 106   {
 107     _value = newValue;
 108   } // value
 109 
 110   static ConstGen    constGen;
 111   private Expression _value = null;
 112 } // class ConstEntry