| /* |
| * Copyright (C) 2012 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "callee_save_frame.h" |
| #include "entrypoints/entrypoint_utils.h" |
| #include "mirror/class-inl.h" |
| #include "mirror/object-inl.h" |
| #include "mirror/object_array-inl.h" |
| |
| namespace art { |
| |
| // Assignable test for code, won't throw. Null and equality tests already performed |
| extern "C" uint32_t artIsAssignableFromCode(const mirror::Class* klass, |
| const mirror::Class* ref_class) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| DCHECK(klass != NULL); |
| DCHECK(ref_class != NULL); |
| return klass->IsAssignableFrom(ref_class) ? 1 : 0; |
| } |
| |
| // Check whether it is safe to cast one class to the other, throw exception and return -1 on failure |
| extern "C" int artCheckCastFromCode(mirror::Class* src_type, mirror::Class* dest_type, |
| Thread* self, mirror::ArtMethod** sp) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| DCHECK(src_type->IsClass()) << PrettyClass(src_type); |
| DCHECK(dest_type->IsClass()) << PrettyClass(dest_type); |
| if (LIKELY(dest_type->IsAssignableFrom(src_type))) { |
| return 0; // Success |
| } else { |
| FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); |
| ThrowClassCastException(dest_type, src_type); |
| return -1; // Failure |
| } |
| } |
| |
| // Tests whether 'element' can be assigned into an array of type 'array_class'. |
| // Returns 0 on success and -1 if an exception is pending. |
| extern "C" int artCanPutArrayElementFromCode(const mirror::Object* element, |
| const mirror::Class* array_class, |
| Thread* self, mirror::ArtMethod** sp) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { |
| DCHECK(array_class != NULL); |
| // element can't be NULL as we catch this is screened in runtime_support |
| mirror::Class* element_class = element->GetClass(); |
| mirror::Class* component_type = array_class->GetComponentType(); |
| if (LIKELY(component_type->IsAssignableFrom(element_class))) { |
| return 0; // Success |
| } else { |
| FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); |
| ThrowArrayStoreException(element_class, array_class); |
| return -1; // Failure |
| } |
| } |
| |
| } // namespace art |