ConstEntry.java revision 608:7e06bf1dcb09 
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
36package com.sun.tools.corba.se.idl;
37
38// NOTES:
39
40import java.io.PrintWriter;
41import java.util.Hashtable;
42
43import com.sun.tools.corba.se.idl.constExpr.Expression;
44
45/**
46 * This is the symbol table entry for constants.
47 **/
48public 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
113