1 /*
 2  * Copyright (c) 1999, 2023, 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 #include "precompiled.hpp"
26 #include "ci/ciNullObject.hpp"
27 #include "ci/ciObjArray.hpp"
28 #include "ci/ciUtilities.inline.hpp"
29 #include "oops/objArrayOop.inline.hpp"
30 #include "oops/oop.inline.hpp"
31 
32 // ciObjArray
33 //
34 // This class represents an objArrayOop in the HotSpot virtual
35 // machine.
36 
37 ciObject* ciObjArray::obj_at(int index) {
38   VM_ENTRY_MARK;
39   objArrayOop array = get_objArrayOop();
40   assert(index >= 0 && index < array->length(), "OOB access");
41   oop o = array->obj_at(index);
42   if (o == nullptr) {
43     return ciNullObject::make();
44   } else {
45     return CURRENT_ENV->get_object(o);
46   }
47 }
48 
49 bool ciObjArray::is_null_free() {
50   VM_ENTRY_MARK;
51   return get_objArrayOop()->is_null_free_array();
52 }