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/*
* Copyright (C) 2008 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 "java_lang_reflect_Array.h"
#include "class_linker-inl.h"
#include "common_throws.h"
#include "dex_file-inl.h"
#include "jni_internal.h"
#include "mirror/class-inl.h"
#include "mirror/object-inl.h"
#include "scoped_fast_native_object_access.h"
#include "handle_scope-inl.h"
namespace art {
static jobject Array_createMultiArray(JNIEnv* env, jclass, jclass javaElementClass, jobject javaDimArray) {
ScopedFastNativeObjectAccess soa(env);
DCHECK(javaElementClass != NULL);
StackHandleScope<2> hs(soa.Self());
Handle<mirror::Class> element_class(hs.NewHandle(soa.Decode<mirror::Class*>(javaElementClass)));
DCHECK(element_class->IsClass());
DCHECK(javaDimArray != NULL);
mirror::Object* dimensions_obj = soa.Decode<mirror::Object*>(javaDimArray);
DCHECK(dimensions_obj->IsArrayInstance());
DCHECK_EQ(dimensions_obj->GetClass()->GetComponentType()->GetPrimitiveType(),
Primitive::kPrimInt);
Handle<mirror::IntArray> dimensions_array(
hs.NewHandle(down_cast<mirror::IntArray*>(dimensions_obj)));
mirror::Array* new_array = mirror::Array::CreateMultiArray(soa.Self(), element_class,
dimensions_array);
return soa.AddLocalReference<jobject>(new_array);
}
static jobject Array_createObjectArray(JNIEnv* env, jclass, jclass javaElementClass, jint length) {
ScopedFastNativeObjectAccess soa(env);
DCHECK(javaElementClass != NULL);
if (UNLIKELY(length < 0)) {
ThrowNegativeArraySizeException(length);
return NULL;
}
mirror::Class* element_class = soa.Decode<mirror::Class*>(javaElementClass);
Runtime* runtime = Runtime::Current();
ClassLinker* class_linker = runtime->GetClassLinker();
mirror::Class* array_class = class_linker->FindArrayClass(soa.Self(), &element_class);
if (UNLIKELY(array_class == NULL)) {
CHECK(soa.Self()->IsExceptionPending());
return NULL;
}
DCHECK(array_class->IsObjectArrayClass());
mirror::Array* new_array = mirror::Array::Alloc<true>(
soa.Self(), array_class, length,
ComponentSizeShiftWidth(sizeof(mirror::HeapReference<mirror::Object>)),
runtime->GetHeap()->GetCurrentAllocator());
return soa.AddLocalReference<jobject>(new_array);
}
static JNINativeMethod gMethods[] = {
NATIVE_METHOD(Array, createMultiArray, "!(Ljava/lang/Class;[I)Ljava/lang/Object;"),
NATIVE_METHOD(Array, createObjectArray, "!(Ljava/lang/Class;I)Ljava/lang/Object;"),
};
void register_java_lang_reflect_Array(JNIEnv* env) {
REGISTER_NATIVE_METHODS("java/lang/reflect/Array");
}
} // namespace art
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