1 /* 2 * Copyright (C) 2008 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 "class_linker-inl.h" 18 #include "common_throws.h" 19 #include "dex_file-inl.h" 20 #include "jni_internal.h" 21 #include "mirror/class-inl.h" 22 #include "mirror/object-inl.h" 23 #include "scoped_fast_native_object_access.h" 24 #include "handle_scope-inl.h" 25 26 namespace art { 27 28 static jobject Array_createMultiArray(JNIEnv* env, jclass, jclass javaElementClass, jobject javaDimArray) { 29 ScopedFastNativeObjectAccess soa(env); 30 DCHECK(javaElementClass != NULL); 31 StackHandleScope<2> hs(soa.Self()); 32 Handle<mirror::Class> element_class(hs.NewHandle(soa.Decode<mirror::Class*>(javaElementClass))); 33 DCHECK(element_class->IsClass()); 34 DCHECK(javaDimArray != NULL); 35 mirror::Object* dimensions_obj = soa.Decode<mirror::Object*>(javaDimArray); 36 DCHECK(dimensions_obj->IsArrayInstance()); 37 DCHECK_EQ(dimensions_obj->GetClass()->GetComponentType()->GetPrimitiveType(), 38 Primitive::kPrimInt); 39 Handle<mirror::IntArray> dimensions_array( 40 hs.NewHandle(down_cast<mirror::IntArray*>(dimensions_obj))); 41 mirror::Array* new_array = mirror::Array::CreateMultiArray(soa.Self(), element_class, 42 dimensions_array); 43 return soa.AddLocalReference<jobject>(new_array); 44 } 45 46 static jobject Array_createObjectArray(JNIEnv* env, jclass, jclass javaElementClass, jint length) { 47 ScopedFastNativeObjectAccess soa(env); 48 DCHECK(javaElementClass != NULL); 49 if (UNLIKELY(length < 0)) { 50 ThrowNegativeArraySizeException(length); 51 return NULL; 52 } 53 mirror::Class* element_class = soa.Decode<mirror::Class*>(javaElementClass); 54 Runtime* runtime = Runtime::Current(); 55 ClassLinker* class_linker = runtime->GetClassLinker(); 56 mirror::Class* array_class = class_linker->FindArrayClass(soa.Self(), &element_class); 57 if (UNLIKELY(array_class == NULL)) { 58 CHECK(soa.Self()->IsExceptionPending()); 59 return NULL; 60 } 61 DCHECK(array_class->IsObjectArrayClass()); 62 mirror::Array* new_array = mirror::Array::Alloc<true>(soa.Self(), array_class, length, 63 sizeof(mirror::HeapReference<mirror::Object>), 64 runtime->GetHeap()->GetCurrentAllocator()); 65 return soa.AddLocalReference<jobject>(new_array); 66 } 67 68 static JNINativeMethod gMethods[] = { 69 NATIVE_METHOD(Array, createMultiArray, "!(Ljava/lang/Class;[I)Ljava/lang/Object;"), 70 NATIVE_METHOD(Array, createObjectArray, "!(Ljava/lang/Class;I)Ljava/lang/Object;"), 71 }; 72 73 void register_java_lang_reflect_Array(JNIEnv* env) { 74 REGISTER_NATIVE_METHODS("java/lang/reflect/Array"); 75 } 76 77 } // namespace art 78
