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src/hotspot/share/oops/arrayKlass.hpp

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   1 /*
   2  * Copyright (c) 1997, 2017, 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  *


  70   // offset of first element, including any padding for the sake of alignment
  71   int  array_header_in_bytes() const    { return layout_helper_header_size(layout_helper()); }
  72   int  log2_element_size() const        { return layout_helper_log2_element_size(layout_helper()); }
  73   // type of elements (T_OBJECT for both oop arrays and array-arrays)
  74   BasicType element_type() const        { return layout_helper_element_type(layout_helper()); }
  75 
  76   virtual Klass* java_super() const;//{ return SystemDictionary::Object_klass(); }
  77 
  78   // Allocation
  79   // Sizes points to the first dimension of the array, subsequent dimensions
  80   // are always in higher memory.  The callers of these set that up.
  81   virtual oop multi_allocate(int rank, jint* sizes, TRAPS);
  82   objArrayOop allocate_arrayArray(int n, int length, TRAPS);
  83 
  84   // find field according to JVM spec 5.4.3.2, returns the klass in which the field is defined
  85   Klass* find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const;
  86 
  87   // Lookup operations
  88   Method* uncached_lookup_method(const Symbol* name,
  89                                  const Symbol* signature,
  90                                  OverpassLookupMode overpass_mode) const;

  91 
  92   static ArrayKlass* cast(Klass* k) {
  93     return const_cast<ArrayKlass*>(cast(const_cast<const Klass*>(k)));
  94   }
  95 
  96   static const ArrayKlass* cast(const Klass* k) {
  97     assert(k->is_array_klass(), "cast to ArrayKlass");
  98     return static_cast<const ArrayKlass*>(k);
  99   }
 100 
 101   GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots,
 102                                                   Array<Klass*>* transitive_interfaces);
 103   bool compute_is_subtype_of(Klass* k);
 104 
 105   // Sizing
 106   static int static_size(int header_size);
 107 
 108   virtual void metaspace_pointers_do(MetaspaceClosure* iter);
 109 
 110 #if INCLUDE_SERVICES


   1 /*
   2  * Copyright (c) 1997, 2018, 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  *


  70   // offset of first element, including any padding for the sake of alignment
  71   int  array_header_in_bytes() const    { return layout_helper_header_size(layout_helper()); }
  72   int  log2_element_size() const        { return layout_helper_log2_element_size(layout_helper()); }
  73   // type of elements (T_OBJECT for both oop arrays and array-arrays)
  74   BasicType element_type() const        { return layout_helper_element_type(layout_helper()); }
  75 
  76   virtual Klass* java_super() const;//{ return SystemDictionary::Object_klass(); }
  77 
  78   // Allocation
  79   // Sizes points to the first dimension of the array, subsequent dimensions
  80   // are always in higher memory.  The callers of these set that up.
  81   virtual oop multi_allocate(int rank, jint* sizes, TRAPS);
  82   objArrayOop allocate_arrayArray(int n, int length, TRAPS);
  83 
  84   // find field according to JVM spec 5.4.3.2, returns the klass in which the field is defined
  85   Klass* find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const;
  86 
  87   // Lookup operations
  88   Method* uncached_lookup_method(const Symbol* name,
  89                                  const Symbol* signature,
  90                                  OverpassLookupMode overpass_mode,
  91                                  PrivateLookupMode private_mode = find_private) const;
  92 
  93   static ArrayKlass* cast(Klass* k) {
  94     return const_cast<ArrayKlass*>(cast(const_cast<const Klass*>(k)));
  95   }
  96 
  97   static const ArrayKlass* cast(const Klass* k) {
  98     assert(k->is_array_klass(), "cast to ArrayKlass");
  99     return static_cast<const ArrayKlass*>(k);
 100   }
 101 
 102   GrowableArray<Klass*>* compute_secondary_supers(int num_extra_slots,
 103                                                   Array<Klass*>* transitive_interfaces);
 104   bool compute_is_subtype_of(Klass* k);
 105 
 106   // Sizing
 107   static int static_size(int header_size);
 108 
 109   virtual void metaspace_pointers_do(MetaspaceClosure* iter);
 110 
 111 #if INCLUDE_SERVICES


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