src/hotspot/share/oops/refArrayOop.inline.hpp - master - githubmirror/panama-vector

src/hotspot/share/oops/refArrayOop.inline.hpp
83 строки3 KB
Frederic Parain
8388480: System.arraycopy fails to partially copy nullable flat arrays
04 авг 2026, 22:47
04 авг 2026, 22:47b19cc6c
/*
 * Copyright (c) 2025, 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.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 *
 */

#ifndef SHARE_OOPS_REFARRAYOOP_INLINE_HPP
#define SHARE_OOPS_REFARRAYOOP_INLINE_HPP

#include "oops/refArrayOop.hpp"

#include "oops/access.hpp"
#include "oops/arrayOop.inline.hpp"
#include "oops/oop.inline.hpp"
#include "runtime/globals.hpp"

inline RefArrayKlass* refArrayOopDesc::klass() const {
  Klass* k = oopDesc::klass();
  return RefArrayKlass::cast(k);
}

inline HeapWord *refArrayOopDesc::base() const {
  return (HeapWord *)arrayOopDesc::base(T_OBJECT);
}

template <class T> T *refArrayOopDesc::obj_at_addr(int index) const {
  assert(is_within_bounds(index), "index %d out of bounds %d", index, length());
  return &((T *)base())[index];
}

inline oop refArrayOopDesc::obj_at(int index) const {
  assert(is_within_bounds(index), "index %d out of bounds %d", index, length());
  ptrdiff_t offset = UseCompressedOops ? obj_at_offset<narrowOop>(index)
                                       : obj_at_offset<oop>(index);
  return HeapAccess<IS_ARRAY>::oop_load_at(as_oop(), offset);
}

inline void refArrayOopDesc::obj_at_put(int index, oop value) {
  assert(is_within_bounds(index), "index %d out of bounds %d", index, length());
  assert(!is_null_free_array() || value != nullptr, "Trying to write null to a null free array");
  ptrdiff_t offset = UseCompressedOops ? obj_at_offset<narrowOop>(index)
                                       : obj_at_offset<oop>(index);
  HeapAccess<IS_ARRAY>::oop_store_at(as_oop(), offset, value);
}

inline void refArrayOopDesc::obj_at_put(int index, oop value, TRAPS) {
  if (is_null_free_array() && value == nullptr) {
    THROW_MSG(vmSymbols::java_lang_NullPointerException(), "Cannot store null in a null-restricted array");
  }
  if (value != nullptr && !value->klass()->is_subtype_of(this->element_klass())) {
    THROW(vmSymbols::java_lang_ArrayStoreException());
  }
  obj_at_put(index, value);
}

template <typename OopClosureType>
void refArrayOopDesc::oop_iterate_elements_range(OopClosureType* blk, int start, int end) {
  if (UseCompressedOops) {
    klass()->oop_oop_iterate_elements_range<narrowOop>(this, blk, start, end);
  } else {
    klass()->oop_oop_iterate_elements_range<oop>(this, blk, start, end);
  }
}

#endif // SHARE_OOPS_REFARRAYOOP_INLINE_HPP