portable_cast_entrypoints.cc revision 7655f29fabc0a12765de828914a18314382e5a35 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "common_throws.h"
18#include "entrypoints/entrypoint_utils.h"
19#include "mirror/object-inl.h"
20
21namespace art {
22
23extern "C" int32_t art_portable_is_assignable_from_code(const mirror::Class* dest_type,
24                                                        const mirror::Class* src_type)
25    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
26  DCHECK(dest_type != NULL);
27  DCHECK(src_type != NULL);
28  return dest_type->IsAssignableFrom(src_type) ? 1 : 0;
29}
30
31extern "C" void art_portable_check_cast_from_code(const mirror::Class* dest_type,
32                                                  const mirror::Class* src_type)
33    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
34  DCHECK(dest_type->IsClass()) << PrettyClass(dest_type);
35  DCHECK(src_type->IsClass()) << PrettyClass(src_type);
36  if (UNLIKELY(!dest_type->IsAssignableFrom(src_type))) {
37    ThrowClassCastException(dest_type, src_type);
38  }
39}
40
41extern "C" void art_portable_check_put_array_element_from_code(const mirror::Object* element,
42                                                               const mirror::Object* array)
43    SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
44  if (element == NULL) {
45    return;
46  }
47  DCHECK(array != NULL);
48  mirror::Class* array_class = array->GetClass();
49  DCHECK(array_class != NULL);
50  mirror::Class* component_type = array_class->GetComponentType();
51  mirror::Class* element_class = element->GetClass();
52  if (UNLIKELY(!component_type->IsAssignableFrom(element_class))) {
53    ThrowArrayStoreException(element_class, array_class);
54  }
55}
56
57}  // namespace art
58