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      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 
     25 namespace art {
     26 
     27 extern "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 
     34 extern "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