content: /*
   * Copyright (c) 2003, 2015, 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.
   */
  
  package openjdk.tools.javac.jvm;
  
  import openjdk.tools.javac.code.*;
  import openjdk.tools.javac.util.List;
  
  import static openjdk.tools.javac.code.TypeTag.UNINITIALIZED_OBJECT;
  import static openjdk.tools.javac.code.TypeTag.UNINITIALIZED_THIS;
  
  /** These pseudo-types appear in the generated verifier tables to
   *  indicate objects that have been allocated but not yet constructed.
   *
   *  <p><b>This is NOT part of any supported API.
   *  If you write code that depends on this, you do so at your own risk.
   *  This code and its internal interfaces are subject to change or
   *  deletion without notice.</b>
   */
  class UninitializedType extends Type.DelegatedType {
  
      public static UninitializedType uninitializedThis(Type qtype) {
          return new UninitializedType(UNINITIALIZED_THIS, qtype, -1,
                                       qtype.getMetadata());
      }
  
      public static UninitializedType uninitializedObject(Type qtype, int offset) {
          return new UninitializedType(UNINITIALIZED_OBJECT, qtype, offset,
                                       qtype.getMetadata());
      }
  
      public final int offset; // PC where allocation took place
      private UninitializedType(TypeTag tag, Type qtype, int offset,
                                TypeMetadata metadata) {
          super(tag, qtype, metadata);
          this.offset = offset;
      }
  
      @Override
      public UninitializedType cloneWithMetadata(final TypeMetadata md) {
          return new UninitializedType(tag, qtype, offset, md);
      }
  
      Type initializedType() {
          return qtype;
      }
  }
  