text: /*
   * Copyright (c) 2017, 2018, 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.
   *
   * 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.
   *
   */
  
  #ifndef SHARE_VM_OOPS_OOPHANDLE_HPP
  #define SHARE_VM_OOPS_OOPHANDLE_HPP
  
  #include "oops/oop.hpp"
  
  // Simple class for encapsulating oop pointers stored in metadata.
  // These are different from Handle.  The Handle class stores pointers
  // to oops on the stack, and manages the allocation from a thread local
  // area in the constructor.
  // This assumes that the caller will allocate the handle in the appropriate
  // area.  The reason for the encapsulation is to help with naming and to allow
  // future uses for read barriers.
  
  class OopHandle {
  private:
    oop* _obj;
  
  public:
    OopHandle() : _obj(NULL) {}
    OopHandle(oop* w) : _obj(w) {}
  
    inline oop resolve() const;
  
    // Used only for removing handle.
    oop* ptr_raw() const { return _obj; }
  };
  
  #endif // SHARE_VM_OOPS_OOPHANDLE_HPP
  