--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/share/vm/oops/arrayKlass.hpp	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,134 @@
+/*
+ * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ *
+ */
+
+// arrayKlass is the abstract baseclass for all array classes
+
+class arrayKlass: public Klass {
+  friend class VMStructs;
+ private:
+  int      _dimension;         // This is n'th-dimensional array.
+  klassOop _higher_dimension;  // Refers the (n+1)'th-dimensional array (if present).
+  klassOop _lower_dimension;   // Refers the (n-1)'th-dimensional array (if present).
+  int      _vtable_len;        // size of vtable for this klass
+  juint    _alloc_size;        // allocation profiling support
+  oop      _component_mirror;  // component type, as a java/lang/Class
+
+ public:
+  // Testing operation
+  bool oop_is_array() const { return true; }
+
+  // Instance variables
+  int dimension() const                 { return _dimension;      }
+  void set_dimension(int dimension)     { _dimension = dimension; }
+
+  klassOop higher_dimension() const     { return _higher_dimension; }
+  void set_higher_dimension(klassOop k) { oop_store_without_check((oop*) &_higher_dimension, (oop) k); }
+  oop* adr_higher_dimension()           { return (oop*)&this->_higher_dimension;}
+
+  klassOop lower_dimension() const      { return _lower_dimension; }
+  void set_lower_dimension(klassOop k)  { oop_store_without_check((oop*) &_lower_dimension, (oop) k); }
+  oop* adr_lower_dimension()            { return (oop*)&this->_lower_dimension;}
+
+  // Allocation profiling support
+  juint alloc_size() const              { return _alloc_size; }
+  void set_alloc_size(juint n)          { _alloc_size = n; }
+
+  // offset of first element, including any padding for the sake of alignment
+  int  array_header_in_bytes() const    { return layout_helper_header_size(layout_helper()); }
+  int  log2_element_size() const        { return layout_helper_log2_element_size(layout_helper()); }
+  // type of elements (T_OBJECT for both oop arrays and array-arrays)
+  BasicType element_type() const        { return layout_helper_element_type(layout_helper()); }
+
+  oop  component_mirror() const         { return _component_mirror; }
+  void set_component_mirror(oop m)      { oop_store((oop*) &_component_mirror, m); }
+  oop* adr_component_mirror()           { return (oop*)&this->_component_mirror;}
+
+  // Compiler/Interpreter offset
+  static ByteSize component_mirror_offset() { return byte_offset_of(arrayKlass, _component_mirror); }
+
+  virtual klassOop java_super() const;//{ return SystemDictionary::object_klass(); }
+
+  // Allocation
+  // Sizes points to the first dimension of the array, subsequent dimensions
+  // are always in higher memory.  The callers of these set that up.
+  virtual oop multi_allocate(int rank, jint* sizes, TRAPS);
+  objArrayOop allocate_arrayArray(int n, int length, TRAPS);
+
+  // Lookup operations
+  methodOop uncached_lookup_method(symbolOop name, symbolOop signature) const;
+
+  // Casting from klassOop
+  static arrayKlass* cast(klassOop k) {
+    Klass* kp = k->klass_part();
+    assert(kp->null_vtbl() || kp->oop_is_array(), "cast to arrayKlass");
+    return (arrayKlass*) kp;
+  }
+
+  objArrayOop compute_secondary_supers(int num_extra_slots, TRAPS);
+  bool compute_is_subtype_of(klassOop k);
+
+  // Sizing
+  static int header_size()                 { return oopDesc::header_size() + sizeof(arrayKlass)/HeapWordSize; }
+  int object_size(int header_size) const;
+
+  bool object_is_parsable() const          { return _vtable_len > 0; }
+
+  // Java vtable
+  klassVtable* vtable() const;             // return new klassVtable
+  int  vtable_length() const               { return _vtable_len; }
+  static int base_vtable_length()          { return Universe::base_vtable_size(); }
+  void set_vtable_length(int len)          { assert(len == base_vtable_length(), "bad length"); _vtable_len = len; }
+ protected:
+  inline intptr_t* start_of_vtable() const;
+
+ public:
+  // Iterators
+  void array_klasses_do(void f(klassOop k));
+  void with_array_klasses_do(void f(klassOop k));
+
+  // Shared creation method
+  static arrayKlassHandle base_create_array_klass(
+                                          const Klass_vtbl& vtbl,
+                                          int header_size, KlassHandle klass,
+                                          TRAPS);
+  // Return a handle.
+  static void     complete_create_array_klass(arrayKlassHandle k, KlassHandle super_klass, TRAPS);
+
+ public:
+   // jvm support
+   jint compute_modifier_flags(TRAPS) const;
+
+ public:
+   // JVMTI support
+   jint jvmti_class_status() const;
+
+#ifndef PRODUCT
+ public:
+  // Printing
+  void oop_print_on(oop obj, outputStream* st);
+#endif
+ public:
+  // Verification
+  void oop_verify_on(oop obj, outputStream* st);
+};