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Diffstat (limited to 'runtime/mirror/object_array-inl.h')
-rw-r--r-- | runtime/mirror/object_array-inl.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/runtime/mirror/object_array-inl.h b/runtime/mirror/object_array-inl.h new file mode 100644 index 0000000..b130dac --- /dev/null +++ b/runtime/mirror/object_array-inl.h @@ -0,0 +1,145 @@ +/* + * Copyright (C) 2011 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. + */ + +#ifndef ART_SRC_MIRROR_OBJECT_ARRAY_INL_H_ +#define ART_SRC_MIRROR_OBJECT_ARRAY_INL_H_ + +#include "object_array.h" + +#include "gc/heap.h" +#include "mirror/class.h" +#include "mirror/field.h" +#include "runtime.h" +#include "thread.h" + +namespace art { +namespace mirror { + +template<class T> +inline ObjectArray<T>* ObjectArray<T>::Alloc(Thread* self, Class* object_array_class, int32_t length) { + Array* array = Array::Alloc(self, object_array_class, length, sizeof(Object*)); + if (UNLIKELY(array == NULL)) { + return NULL; + } else { + return array->AsObjectArray<T>(); + } +} + +template<class T> +inline T* ObjectArray<T>::Get(int32_t i) const { + if (UNLIKELY(!IsValidIndex(i))) { + return NULL; + } + MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*)); + return GetFieldObject<T*>(data_offset, false); +} + +template<class T> +inline bool ObjectArray<T>::CheckAssignable(T* object) { + if (object != NULL) { + Class* element_class = GetClass()->GetComponentType(); + if (UNLIKELY(!object->InstanceOf(element_class))) { + ThrowArrayStoreException(object); + return false; + } + } + return true; +} + +template<class T> +inline void ObjectArray<T>::Set(int32_t i, T* object) { + if (LIKELY(IsValidIndex(i) && CheckAssignable(object))) { + MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*)); + SetFieldObject(data_offset, object, false); + } else { + DCHECK(Thread::Current()->IsExceptionPending()); + } +} + +template<class T> +inline void ObjectArray<T>::SetWithoutChecks(int32_t i, T* object) { + DCHECK(IsValidIndex(i)); + MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*)); + SetFieldObject(data_offset, object, false); +} + +template<class T> +inline void ObjectArray<T>::SetPtrWithoutChecks(int32_t i, T* object) { + DCHECK(IsValidIndex(i)); + MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*)); + SetFieldPtr(data_offset, object, false); +} + +template<class T> +inline T* ObjectArray<T>::GetWithoutChecks(int32_t i) const { + DCHECK(IsValidIndex(i)); + MemberOffset data_offset(DataOffset(sizeof(Object*)).Int32Value() + i * sizeof(Object*)); + return GetFieldObject<T*>(data_offset, false); +} + +template<class T> +inline void ObjectArray<T>::Copy(const ObjectArray<T>* src, int src_pos, + ObjectArray<T>* dst, int dst_pos, + size_t length) { + if (src->IsValidIndex(src_pos) && + src->IsValidIndex(src_pos+length-1) && + dst->IsValidIndex(dst_pos) && + dst->IsValidIndex(dst_pos+length-1)) { + MemberOffset src_offset(DataOffset(sizeof(Object*)).Int32Value() + src_pos * sizeof(Object*)); + MemberOffset dst_offset(DataOffset(sizeof(Object*)).Int32Value() + dst_pos * sizeof(Object*)); + Class* array_class = dst->GetClass(); + gc::Heap* heap = Runtime::Current()->GetHeap(); + if (array_class == src->GetClass()) { + // No need for array store checks if arrays are of the same type + for (size_t i = 0; i < length; i++) { + Object* object = src->GetFieldObject<Object*>(src_offset, false); + heap->VerifyObject(object); + // directly set field, we do a bulk write barrier at the end + dst->SetField32(dst_offset, reinterpret_cast<uint32_t>(object), false, true); + src_offset = MemberOffset(src_offset.Uint32Value() + sizeof(Object*)); + dst_offset = MemberOffset(dst_offset.Uint32Value() + sizeof(Object*)); + } + } else { + Class* element_class = array_class->GetComponentType(); + CHECK(!element_class->IsPrimitive()); + for (size_t i = 0; i < length; i++) { + Object* object = src->GetFieldObject<Object*>(src_offset, false); + if (object != NULL && !object->InstanceOf(element_class)) { + dst->ThrowArrayStoreException(object); + return; + } + heap->VerifyObject(object); + // directly set field, we do a bulk write barrier at the end + dst->SetField32(dst_offset, reinterpret_cast<uint32_t>(object), false, true); + src_offset = MemberOffset(src_offset.Uint32Value() + sizeof(Object*)); + dst_offset = MemberOffset(dst_offset.Uint32Value() + sizeof(Object*)); + } + } + heap->WriteBarrierArray(dst, dst_pos, length); + } +} + +template<class T> +inline ObjectArray<T>* ObjectArray<T>::CopyOf(Thread* self, int32_t new_length) { + ObjectArray<T>* new_array = Alloc(self, GetClass(), new_length); + Copy(this, 0, new_array, 0, std::min(GetLength(), new_length)); + return new_array; +} + +} // namespace mirror +} // namespace art + +#endif // ART_SRC_MIRROR_OBJET_ARRAY_INL_H_ |