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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        @returns 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