1 /*
 2  * Copyright (c) 2018, 2025, 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
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 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).
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15  * You should have received a copy of the GNU General Public License version
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24 
25 #ifndef SHARE_VM_OOPS_FLATARRAYOOP_INLINE_HPP
26 #define SHARE_VM_OOPS_FLATARRAYOOP_INLINE_HPP
27 
28 #include "classfile/vmSymbols.hpp"
29 #include "oops/access.inline.hpp"
30 #include "oops/flatArrayOop.hpp"
31 #include "oops/inlineKlass.inline.hpp"
32 #include "oops/oop.inline.hpp"
33 #include "runtime/globals.hpp"
34 
35 inline void* flatArrayOopDesc::base() const { return arrayOopDesc::base(T_FLAT_ELEMENT); }
36 
37 inline void* flatArrayOopDesc::value_at_addr(int index, jint lh) const {
38   assert(is_within_bounds(index), "index out of bounds");
39 
40   address addr = (address) base();
41   addr += (index << Klass::layout_helper_log2_element_size(lh));
42   return (void*) addr;
43 }
44 
45 inline int flatArrayOopDesc::object_size() const {
46   return object_size(klass()->layout_helper(), length());
47 }
48 
49 inline oop flatArrayOopDesc::read_value_from_flat_array(int index, TRAPS) {
50   // This method assumes that the validity of the index has already been checked
51   FlatArrayKlass* faklass = FlatArrayKlass::cast(klass());
52   InlineKlass* vk = InlineKlass::cast(faklass->element_klass());
53   int offset = ((char*)value_at_addr(index, faklass->layout_helper())) - ((char*)(oopDesc*)this);
54   oop res = vk->read_payload_from_addr(this, offset, faklass->layout_kind(), CHECK_NULL);
55   return res;
56 }
57 
58 inline void flatArrayOopDesc::write_value_to_flat_array(oop value, int index, TRAPS) {
59   // This method assumes that the validity of the index has already been checked
60   FlatArrayKlass* faklass = FlatArrayKlass::cast(klass());
61   InlineKlass* vk = InlineKlass::cast(faklass->element_klass());
62   if (value != nullptr) {
63     if (value->klass() != vk) {
64       THROW(vmSymbols::java_lang_ArrayStoreException());
65     }
66   }
67   vk->write_value_to_addr(value, value_at_addr(index, faklass->layout_helper()), faklass->layout_kind(), true, CHECK);
68 }
69 
70 #endif // SHARE_VM_OOPS_FLATARRAYOOP_INLINE_HPP