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Datei: oopCast.inline.hpp Sprache: C

/*
* Copyright (c) 2022, 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_OOPS_OOPCAST_INLINE_HPP
#define SHARE_OOPS_OOPCAST_INLINE_HPP

#include "oops/oopsHierarchy.hpp"
#include "oops/oop.inline.hpp"

template<typename T>
static bool is_oop_type(oop theOop) {
  static_assert(sizeof(T) == 0, "No is_oop_type specialization found for this type");
  return false;
}
template<>
inline bool is_oop_type<instanceOop>(oop theOop) { return theOop->is_instance(); }
template<>
inline bool is_oop_type<arrayOop>(oop theOop) { return theOop->is_array(); }
template<>
inline bool is_oop_type<objArrayOop>(oop theOop) { return theOop->is_objArray(); }
template<>
inline bool is_oop_type<typeArrayOop>(oop theOop) { return theOop->is_typeArray(); }

template<typename R>
R oop_cast(oop theOop) {
  assert(is_oop_type<R>(theOop), "Invalid cast");
  return (R) theOop;
}

#endif // SHARE_OOPS_OOPCAST_INLINE_HPP

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