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src/share/vm/oops/instanceMirrorKlass.hpp

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rev 8362 : [mq]: hotspot
   1 /*
   2  * Copyright (c) 2011, 2013, 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 
  25 #ifndef SHARE_VM_OOPS_INSTANCEMIRRORKLASS_HPP
  26 #define SHARE_VM_OOPS_INSTANCEMIRRORKLASS_HPP
  27 
  28 #include "classfile/systemDictionary.hpp"
  29 #include "memory/specialized_oop_closures.hpp"
  30 #include "oops/instanceKlass.hpp"
  31 #include "runtime/handles.hpp"
  32 #include "utilities/macros.hpp"
  33 
  34 // An InstanceMirrorKlass is a specialized InstanceKlass for
  35 // java.lang.Class instances.  These instances are special because
  36 // they contain the static fields of the class in addition to the
  37 // normal fields of Class.  This means they are variable sized
  38 // instances and need special logic for computing their size and for
  39 // iteration of their oops.
  40 
  41 
  42 class InstanceMirrorKlass: public InstanceKlass {
  43   friend class VMStructs;
  44   friend class InstanceKlass;
  45 
  46  private:
  47   static int _offset_of_static_fields;
  48 
  49   // Constructor


   1 /*
   2  * Copyright (c) 2011, 2015, 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 
  25 #ifndef SHARE_VM_OOPS_INSTANCEMIRRORKLASS_HPP
  26 #define SHARE_VM_OOPS_INSTANCEMIRRORKLASS_HPP
  27 
  28 #include "classfile/systemDictionary.hpp"
  29 #include "gc/shared/specialized_oop_closures.hpp"
  30 #include "oops/instanceKlass.hpp"
  31 #include "runtime/handles.hpp"
  32 #include "utilities/macros.hpp"
  33 
  34 // An InstanceMirrorKlass is a specialized InstanceKlass for
  35 // java.lang.Class instances.  These instances are special because
  36 // they contain the static fields of the class in addition to the
  37 // normal fields of Class.  This means they are variable sized
  38 // instances and need special logic for computing their size and for
  39 // iteration of their oops.
  40 
  41 
  42 class InstanceMirrorKlass: public InstanceKlass {
  43   friend class VMStructs;
  44   friend class InstanceKlass;
  45 
  46  private:
  47   static int _offset_of_static_fields;
  48 
  49   // Constructor


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