Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/shared/gcId.hpp @ 21209:629cc690c4c6
Fix instanceof with checking arrays of interface
author | Stefan Anzinger <stefan.anzinger@oracle.com> |
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date | Thu, 30 Apr 2015 18:09:36 +0200 |
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1 /* |
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 * |
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23 */ |
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24 |
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25 #ifndef SHARE_VM_GC_IMPLEMENTATION_SHARED_GCID_HPP |
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26 #define SHARE_VM_GC_IMPLEMENTATION_SHARED_GCID_HPP |
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27 |
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28 #include "memory/allocation.hpp" |
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29 |
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30 class GCId VALUE_OBJ_CLASS_SPEC { |
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31 private: |
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32 uint _id; |
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33 GCId(uint id) : _id(id) {} |
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34 GCId() { } // Unused |
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35 |
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36 static uint _next_id; |
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37 static const uint UNDEFINED = (uint)-1; |
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38 |
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39 public: |
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40 uint id() const { |
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41 assert(_id != UNDEFINED, "Using undefined GC ID"); |
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42 return _id; |
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43 } |
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44 bool is_undefined() const; |
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45 |
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46 static const GCId create(); |
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47 static const GCId peek(); |
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48 static const GCId undefined(); |
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49 }; |
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50 |
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51 #endif // SHARE_VM_GC_IMPLEMENTATION_SHARED_GCID_HPP |