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