src/share/vm/oops/arrayKlass.hpp

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   1 /*
   2  * Copyright (c) 1997, 2007, 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 // arrayKlass is the abstract baseclass for all array classes
  26 
  27 class arrayKlass: public Klass {
  28   friend class VMStructs;
  29  private:
  30   int      _dimension;         // This is n'th-dimensional array.
  31   klassOop _higher_dimension;  // Refers the (n+1)'th-dimensional array (if present).
  32   klassOop _lower_dimension;   // Refers the (n-1)'th-dimensional array (if present).
  33   int      _vtable_len;        // size of vtable for this klass
  34   juint    _alloc_size;        // allocation profiling support
  35   oop      _component_mirror;  // component type, as a java/lang/Class
  36 
  37  public:
  38   // Testing operation
  39   bool oop_is_array() const { return true; }
  40 
  41   // Instance variables
  42   int dimension() const                 { return _dimension;      }
  43   void set_dimension(int dimension)     { _dimension = dimension; }
  44 


 110   // Shared creation method
 111   static arrayKlassHandle base_create_array_klass(
 112                                           const Klass_vtbl& vtbl,
 113                                           int header_size, KlassHandle klass,
 114                                           TRAPS);
 115   // Return a handle.
 116   static void     complete_create_array_klass(arrayKlassHandle k, KlassHandle super_klass, TRAPS);
 117 
 118   // jvm support
 119   jint compute_modifier_flags(TRAPS) const;
 120 
 121   // JVMTI support
 122   jint jvmti_class_status() const;
 123 
 124   // Printing
 125   void oop_print_on(oop obj, outputStream* st);
 126 
 127   // Verification
 128   void oop_verify_on(oop obj, outputStream* st);
 129 };


   1 /*
   2  * Copyright (c) 1997, 2010, 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_ARRAYKLASS_HPP
  26 #define SHARE_VM_OOPS_ARRAYKLASS_HPP
  27 
  28 #include "memory/universe.hpp"
  29 #include "oops/klass.hpp"
  30 #include "oops/klassOop.hpp"
  31 #include "oops/klassVtable.hpp"
  32 
  33 // arrayKlass is the abstract baseclass for all array classes
  34 
  35 class arrayKlass: public Klass {
  36   friend class VMStructs;
  37  private:
  38   int      _dimension;         // This is n'th-dimensional array.
  39   klassOop _higher_dimension;  // Refers the (n+1)'th-dimensional array (if present).
  40   klassOop _lower_dimension;   // Refers the (n-1)'th-dimensional array (if present).
  41   int      _vtable_len;        // size of vtable for this klass
  42   juint    _alloc_size;        // allocation profiling support
  43   oop      _component_mirror;  // component type, as a java/lang/Class
  44 
  45  public:
  46   // Testing operation
  47   bool oop_is_array() const { return true; }
  48 
  49   // Instance variables
  50   int dimension() const                 { return _dimension;      }
  51   void set_dimension(int dimension)     { _dimension = dimension; }
  52 


 118   // Shared creation method
 119   static arrayKlassHandle base_create_array_klass(
 120                                           const Klass_vtbl& vtbl,
 121                                           int header_size, KlassHandle klass,
 122                                           TRAPS);
 123   // Return a handle.
 124   static void     complete_create_array_klass(arrayKlassHandle k, KlassHandle super_klass, TRAPS);
 125 
 126   // jvm support
 127   jint compute_modifier_flags(TRAPS) const;
 128 
 129   // JVMTI support
 130   jint jvmti_class_status() const;
 131 
 132   // Printing
 133   void oop_print_on(oop obj, outputStream* st);
 134 
 135   // Verification
 136   void oop_verify_on(oop obj, outputStream* st);
 137 };
 138 
 139 #endif // SHARE_VM_OOPS_ARRAYKLASS_HPP