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1   /*
2    * Copyright (c) 1999, 2004, 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  import java.util.Vector;
43  
44  import com.sun.tools.corba.se.idl.constExpr.Expression;
45  
46  /**
47   * This is the symbol table entry for typedefs.
48   **/
49  public class TypedefEntry extends SymtabEntry
50  {
51    protected TypedefEntry ()
52    {
53      super ();
54    } // ctor
55  
56    protected TypedefEntry (TypedefEntry that)
57    {
58      super (that);
59      _arrayInfo = (Vector)that._arrayInfo.clone ();
60    } // ctor
61  
62    protected TypedefEntry (SymtabEntry that, IDLID clone)
63    {
64      super (that, clone);
65      if (module ().equals (""))
66        module (name ());
67      else if (!name ().equals (""))
68        module (module () + "/" + name ());
69    } // ctor
70  
71    /** This method returns a vector of Expressions, each expression
72        represents a dimension in an array.  A zero-length vector indicates
73        no array information.*/
74    public Vector arrayInfo ()
75    {
76      return _arrayInfo;
77    } // arrayInfo
78  
79    public void addArrayInfo (Expression e)
80    {
81      _arrayInfo.addElement (e);
82    } // addArrayInfo
83  
84    public Object clone ()
85    {
86      return new TypedefEntry (this);
87    } // clone
88  
89    /** Invoke the typedef generator.
90        @param symbolTable the symbol table is a hash table whose key is
91         a fully qualified type name and whose value is a SymtabEntry or
92         a subclass of SymtabEntry.
93        @param stream the stream to which the generator should sent its output.
94        @see SymtabEntry */
95    public void generate (Hashtable symbolTable, PrintWriter stream)
96    {
97      typedefGen.generate (symbolTable, this, stream);
98    } // generate
99  
100   public boolean isReferencable()
101   {
102     // A typedef is referencable if its component
103     // type is.
104     return type().isReferencable() ;
105   }
106 
107   public void isReferencable( boolean value )
108   {
109     // NO-OP: this cannot be set for a typedef.
110   }
111 
112   /** Access the typedef generator.
113       @returns an object which implements the TypedefGen interface.
114       @see TypedefGen */
115   public Generator generator ()
116   {
117     return typedefGen;
118   } // generator
119 
120   private Vector _arrayInfo = new Vector ();
121 
122   static  TypedefGen typedefGen;
123 } // class TypedefEntry