upload android base code part3

android/art/runtime/native/java_lang_reflect_Array.cc

@@ -0,0 +1,86 @@
+/*
+ * 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 "nativehelper/jni_macros.h"
+
+#include "class_linker-inl.h"
+#include "common_throws.h"
+#include "dex_file-inl.h"
+#include "handle_scope-inl.h"
+#include "jni_internal.h"
+#include "mirror/class-inl.h"
+#include "mirror/object-inl.h"
+#include "native_util.h"
+#include "scoped_fast_native_object_access-inl.h"
+
+namespace art {
+
+static jobject Array_createMultiArray(
+    JNIEnv* env, jclass, jclass javaElementClass, jobject javaDimArray) {
+  ScopedFastNativeObjectAccess soa(env);
+  DCHECK(javaElementClass != nullptr);
+  StackHandleScope<2> hs(soa.Self());
+  Handle<mirror::Class> element_class(hs.NewHandle(soa.Decode<mirror::Class>(javaElementClass)));
+  DCHECK(element_class->IsClass());
+  DCHECK(javaDimArray != nullptr);
+  ObjPtr<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(ObjPtr<mirror::IntArray>::DownCast(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 != nullptr);
+  if (UNLIKELY(length < 0)) {
+    ThrowNegativeArraySizeException(length);
+    return nullptr;
+  }
+  ObjPtr<mirror::Class> element_class = soa.Decode<mirror::Class>(javaElementClass);
+  Runtime* runtime = Runtime::Current();
+  ClassLinker* class_linker = runtime->GetClassLinker();
+  ObjPtr<mirror::Class> array_class = class_linker->FindArrayClass(soa.Self(), &element_class);
+  if (UNLIKELY(array_class == nullptr)) {
+    CHECK(soa.Self()->IsExceptionPending());
+    return nullptr;
+  }
+  DCHECK(array_class->IsObjectArrayClass());
+  ObjPtr<mirror::Array> new_array = mirror::ObjectArray<mirror::Object*>::Alloc(
+      soa.Self(),
+      array_class,
+      length,
+      runtime->GetHeap()->GetCurrentAllocator());
+  return soa.AddLocalReference<jobject>(new_array);
+}
+
+static JNINativeMethod gMethods[] = {
+  FAST_NATIVE_METHOD(Array, createMultiArray, "(Ljava/lang/Class;[I)Ljava/lang/Object;"),
+  FAST_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