1 /* 2 * Copyright (C) 2020 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 #pragma once 18 19 #include <error/Result.h> 20 21 namespace android { 22 // `ConversionResult` is always defined in the `::android` namespace, 23 // so that it can be found from any nested namespace. 24 // See below for the convenience alias specific to the NDK backend. 25 template <typename T> 26 using ConversionResult = ::android::error::Result<T>; 27 } // namespace android 28 29 // Include 'AidlConversionUtil.h' once if 'BACKEND_NDK' is defined, 30 // or no 'BACKEND_*' is defined (C++ backend). Include twice if 31 // 'BACKEND_CPP_NDK' is defined: once with 'BACKEND_NDK_IMPL', once w/o defines. 32 33 #if defined(BACKEND_CPP_NDK) || defined(BACKEND_NDK) 34 #define BACKEND_NDK_IMPL 35 #include <media/AidlConversionUtil-impl.h> 36 #undef BACKEND_NDK_IMPL 37 #endif 38 39 #if defined(BACKEND_CPP_NDK) || !defined(BACKEND_NDK) 40 #include <media/AidlConversionUtil-impl.h> 41 #endif 42