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       @return 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