unsafe_test.cc revision 1c83cbc4a817acbd7f9abb5b29a2d418a958e6a1 
1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "jni.h"
18#include "mirror/array.h"
19#include "mirror/art_method-inl.h"
20#include "mirror/class.h"
21#include "mirror/class-inl.h"
22#include "mirror/object-inl.h"
23#include "scoped_thread_state_change.h"
24
25namespace art {
26
27extern "C" JNIEXPORT jint JNICALL Java_Main_vmArrayBaseOffset(JNIEnv* env, jclass, jobject classObj) {
28  ScopedObjectAccess soa(env);
29  mirror::Class* klass = soa.Decode<mirror::Class*>(classObj);
30  return mirror::Array::DataOffset(
31      Primitive::ComponentSize(klass->GetComponentType()->GetPrimitiveType())).Int32Value();
32}
33
34extern "C" JNIEXPORT jint JNICALL Java_Main_vmArrayIndexScale(JNIEnv* env, jclass, jobject classObj) {
35  ScopedObjectAccess soa(env);
36  mirror::Class* klass = soa.Decode<mirror::Class*>(classObj);
37  return Primitive::ComponentSize(klass->GetComponentType()->GetPrimitiveType());
38}
39
40}  // namespace art
41