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.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 "object_utils.h" 24 #include "scoped_thread_state_change.h" 25 #include "sirt_ref.h" 26 27 namespace art { 28 29 static jobject Array_createMultiArray(JNIEnv* env, jclass, jclass javaElementClass, jobject javaDimArray) { 30 ScopedObjectAccess soa(env); 31 DCHECK(javaElementClass != NULL); 32 mirror::Class* element_class = 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_STREQ(ClassHelper(dimensions_obj->GetClass()).GetDescriptor(), "[I"); 38 mirror::IntArray* dimensions_array = down_cast<mirror::IntArray*>(dimensions_obj); 39 mirror::Array* new_array = mirror::Array::CreateMultiArray(soa.Self(), element_class, dimensions_array); 40 return soa.AddLocalReference<jobject>(new_array); 41 } 42 43 static jobject Array_createObjectArray(JNIEnv* env, jclass, jclass javaElementClass, jint length) { 44 ScopedObjectAccess soa(env); 45 DCHECK(javaElementClass != NULL); 46 mirror::Class* element_class = soa.Decode<mirror::Class*>(javaElementClass); 47 if (UNLIKELY(length < 0)) { 48 ThrowNegativeArraySizeException(length); 49 return NULL; 50 } 51 std::string descriptor("["); 52 descriptor += ClassHelper(element_class).GetDescriptor(); 53 54 ClassLinker* class_linker = Runtime::Current()->GetClassLinker(); 55 mirror::Class* array_class = class_linker->FindClass(descriptor.c_str(), element_class->GetClassLoader()); 56 if (UNLIKELY(array_class == NULL)) { 57 CHECK(soa.Self()->IsExceptionPending()); 58 return NULL; 59 } 60 DCHECK(array_class->IsArrayClass()); 61 mirror::Array* new_array = mirror::Array::Alloc(soa.Self(), array_class, length); 62 return soa.AddLocalReference<jobject>(new_array); 63 } 64 65 static JNINativeMethod gMethods[] = { 66 NATIVE_METHOD(Array, createMultiArray, "(Ljava/lang/Class;[I)Ljava/lang/Object;"), 67 NATIVE_METHOD(Array, createObjectArray, "(Ljava/lang/Class;I)Ljava/lang/Object;"), 68 }; 69 70 void register_java_lang_reflect_Array(JNIEnv* env) { 71 REGISTER_NATIVE_METHODS("java/lang/reflect/Array"); 72 } 73 74 } // namespace art 75
