1 /*
 2  * Copyright (c) 2021, 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.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 
24 #ifndef SHARE_OOPS_OOPCAST_INLINE_HPP
25 #define SHARE_OOPS_OOPCAST_INLINE_HPP
26 
27 #include "oops/oopsHierarchy.hpp"
28 #include "oops/oop.inline.hpp"
29 
30 template<typename T>
31 static bool is_oop_type(oop theOop) {
32   static_assert(sizeof(T) == 0, "No is_oop_type specialization found for this type");
33   return false;
34 }
35 template<>
36 inline bool is_oop_type<instanceOop>(oop theOop) { return theOop->is_instance(); }
37 template<>
38 inline bool is_oop_type<arrayOop>(oop theOop) { return theOop->is_array(); }
39 template<>
40 inline bool is_oop_type<objArrayOop>(oop theOop) { return theOop->is_objArray(); }
41 template<>
42 inline bool is_oop_type<typeArrayOop>(oop theOop) { return theOop->is_typeArray(); }
43 
44 template<typename R>
45 R oop_cast(oop theOop) {
46   assert(is_oop_type<R>(theOop), "Invalid cast");
47   return (R) theOop;
48 }
49 
50 #endif // SHARE_OOPS_OOPCAST_INLINE_HPP