87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "java_lang_reflect_Array.h"
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#include "nativehelper/jni_macros.h"
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#include "class_linker-inl.h"
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#include "common_throws.h"
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#include "dex/dex_file-inl.h"
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#include "handle_scope-inl.h"
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#include "jni/jni_internal.h"
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#include "mirror/class-inl.h"
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#include "mirror/object_array-alloc-inl.h"
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#include "mirror/object-inl.h"
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#include "native_util.h"
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#include "scoped_fast_native_object_access-inl.h"
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namespace art {
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static jobject Array_createMultiArray(
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JNIEnv* env, jclass, jclass javaElementClass, jintArray javaDimArray) {
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ScopedFastNativeObjectAccess soa(env);
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DCHECK(javaElementClass != nullptr);
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StackHandleScope<2> hs(soa.Self());
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Handle<mirror::Class> element_class(hs.NewHandle(soa.Decode<mirror::Class>(javaElementClass)));
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DCHECK(element_class->IsClass());
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DCHECK(javaDimArray != nullptr);
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ObjPtr<mirror::Object> dimensions_obj = soa.Decode<mirror::Object>(javaDimArray);
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DCHECK(dimensions_obj->IsArrayInstance());
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DCHECK_EQ(dimensions_obj->GetClass()->GetComponentType()->GetPrimitiveType(),
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Primitive::kPrimInt);
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Handle<mirror::IntArray> dimensions_array(
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hs.NewHandle(ObjPtr<mirror::IntArray>::DownCast(dimensions_obj)));
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ObjPtr<mirror::Array> new_array =
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mirror::Array::CreateMultiArray(soa.Self(), element_class, dimensions_array);
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return soa.AddLocalReference<jobject>(new_array);
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}
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static jobject Array_createObjectArray(JNIEnv* env, jclass, jclass javaElementClass, jint length) {
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ScopedFastNativeObjectAccess soa(env);
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DCHECK(javaElementClass != nullptr);
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if (UNLIKELY(length < 0)) {
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ThrowNegativeArraySizeException(length);
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return nullptr;
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}
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Runtime* runtime = Runtime::Current();
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ClassLinker* class_linker = runtime->GetClassLinker();
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ObjPtr<mirror::Class> array_class =
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class_linker->FindArrayClass(soa.Self(), soa.Decode<mirror::Class>(javaElementClass));
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if (UNLIKELY(array_class == nullptr)) {
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CHECK(soa.Self()->IsExceptionPending());
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return nullptr;
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}
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DCHECK(array_class->IsObjectArrayClass());
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ObjPtr<mirror::Array> new_array = mirror::ObjectArray<mirror::Object>::Alloc(
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soa.Self(),
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array_class,
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length,
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runtime->GetHeap()->GetCurrentAllocator());
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return soa.AddLocalReference<jobject>(new_array);
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}
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static JNINativeMethod gMethods[] = {
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FAST_NATIVE_METHOD(Array, createMultiArray, "(Ljava/lang/Class;[I)Ljava/lang/Object;"),
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FAST_NATIVE_METHOD(Array, createObjectArray, "(Ljava/lang/Class;I)Ljava/lang/Object;"),
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};
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void register_java_lang_reflect_Array(JNIEnv* env) {
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REGISTER_NATIVE_METHODS("java/lang/reflect/Array");
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}
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} // namespace art
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