/*
 * Copyright (c) 2015, 2018, Oracle and/or its affiliates. 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.
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#ifndef SHARE_VM_OOPS_VALUEARRAYOOP_HPP
#define SHARE_VM_OOPS_VALUEARRAYOOP_HPP

#include "oops/arrayOop.hpp"
#include "oops/klass.hpp"
#include "oops/oop.inline.hpp"

// A valueArrayOop is an array containing value types (may include flatten embedded oop elements).

class valueArrayOopDesc : public arrayOopDesc {

 public:
  void*  base() const;
  void* value_at_addr(int index, jint lh) const;

  // Return a buffered element from index
  static oop value_copy_from_index(valueArrayHandle vah, int index, TRAPS);
  void value_copy_from_index(int index, oop dst) const;
  void value_copy_to_index(oop src, int index) const;

  // Sizing
  static size_t element_size(int lh, int nof_elements) {
    return nof_elements << Klass::layout_helper_log2_element_size(lh);
  }

  static int object_size(int lh, int length) {
    julong size_in_bytes = header_size_in_bytes() + element_size(lh, length);
    julong size_in_words = ((size_in_bytes + (HeapWordSize-1)) >> LogHeapWordSize);
    assert(size_in_words <= (julong)max_jint, "no overflow");
    return align_object_size((intptr_t)size_in_words);
  }

  int object_size() const;

};

#endif // SHARE_VM_OOPS_VALUEARRAYOOP_HPP