Mercurial > jdk8-mips64-public > corba / file revision

 /*

  * Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.  Oracle designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the LICENSE file that accompanied this code.

  *

  * This code is distributed in the hope that it will be useful, but WITHOUT

  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  */

 /*

  * Licensed Materials - Property of IBM

  * RMI-IIOP v1.0

  * Copyright IBM Corp. 1998 1999  All Rights Reserved

  *

  */

 package sun.rmi.rmic.iiop;

 import sun.tools.java.ClassNotFound;

 import sun.tools.java.CompilerError;

 import sun.tools.java.Identifier;

 import sun.tools.java.ClassDefinition;

 /**

  * SpecialClassType represents any one of the following types:

  * <pre>

  *    java.lang.Object

  *    java.lang.String

  * </pre>

  * all of which are treated as special cases.

  * <p>

  * The static forSpecial(...) method must be used to obtain an instance, and

  * will return null if the type is non-conforming.

  *

  * @author      Bryan Atsatt

  */

 public class SpecialClassType extends ClassType {

     //_____________________________________________________________________

     // Public Interfaces

     //_____________________________________________________________________

     /**

      * Create a SpecialClassType object for the given class.

      *

      * If the class is not a properly formed or if some other error occurs, the

      * return value will be null, and errors will have been reported to the

      * supplied BatchEnvironment.

      */

     public static SpecialClassType forSpecial (ClassDefinition theClass,

                                                ContextStack stack) {

         if (stack.anyErrors()) return null;

         sun.tools.java.Type type = theClass.getType();

         // Do we already have it?

         String typeKey = type.toString() + stack.getContextCodeString();

         Type existing = getType(typeKey,stack);

         if (existing != null) {

             if (!(existing instanceof SpecialClassType)) return null; // False hit.

             // Yep, so return it...

             return (SpecialClassType) existing;

         }

         // Is it a special type?

         int typeCode = getTypeCode(type,theClass,stack);

         if (typeCode != TYPE_NONE) {

             // Yes...

             SpecialClassType result = new SpecialClassType(stack,typeCode,theClass);

             putType(typeKey,result,stack);

             stack.push(result);

             stack.pop(true);

             return result;

         } else {

             return null;

         }

     }

     /**

      * Return a string describing this type.

      */

     public String getTypeDescription () {

         return "Special class";

     }

     //_____________________________________________________________________

     // Subclass/Internal Interfaces

     //_____________________________________________________________________

     /**

      * Create an SpecialClassType instance for the given class.

      */

     private SpecialClassType(ContextStack stack, int typeCode,

                              ClassDefinition theClass) {

         super(stack,typeCode | TM_SPECIAL_CLASS | TM_CLASS | TM_COMPOUND, theClass);

         Identifier id = theClass.getName();

         String idlName = null;

         String[] idlModuleName = null;

         boolean constant = stack.size() > 0 && stack.getContext().isConstant();

         // Set names...

         switch (typeCode) {

         case TYPE_STRING:   {

             idlName = IDLNames.getTypeName(typeCode,constant);

             if (!constant) {

                 idlModuleName = IDL_CORBA_MODULE;

             }

             break;

         }

         case TYPE_ANY:   {

             idlName = IDL_JAVA_LANG_OBJECT;

             idlModuleName = IDL_JAVA_LANG_MODULE;

             break;

         }

         }

         setNames(id,idlModuleName,idlName);

         // Init parents...

         if (!initParents(stack)) {

             // Should not be possible!

             throw new CompilerError("SpecialClassType found invalid parent.");

         }

         // Initialize CompoundType...

         initialize(null,null,null,stack,false);

     }

     private static int getTypeCode(sun.tools.java.Type type, ClassDefinition theClass, ContextStack stack) {

         if (type.isType(TC_CLASS)) {

             Identifier id = type.getClassName();

             if (id == idJavaLangString) return TYPE_STRING;

             if (id == idJavaLangObject) return TYPE_ANY;

         }

         return TYPE_NONE;

     }

 }