1*d9f75844SAndroid Build Coastguard Worker /* 2*d9f75844SAndroid Build Coastguard Worker * Copyright 2016 The WebRTC Project Authors. All rights reserved. 3*d9f75844SAndroid Build Coastguard Worker * 4*d9f75844SAndroid Build Coastguard Worker * Use of this source code is governed by a BSD-style license 5*d9f75844SAndroid Build Coastguard Worker * that can be found in the LICENSE file in the root of the source 6*d9f75844SAndroid Build Coastguard Worker * tree. An additional intellectual property rights grant can be found 7*d9f75844SAndroid Build Coastguard Worker * in the file PATENTS. All contributing project authors may 8*d9f75844SAndroid Build Coastguard Worker * be found in the AUTHORS file in the root of the source tree. 9*d9f75844SAndroid Build Coastguard Worker */ 10*d9f75844SAndroid Build Coastguard Worker 11*d9f75844SAndroid Build Coastguard Worker #ifndef SDK_OBJC_BASE_RTCMACROS_H_ 12*d9f75844SAndroid Build Coastguard Worker #define SDK_OBJC_BASE_RTCMACROS_H_ 13*d9f75844SAndroid Build Coastguard Worker 14*d9f75844SAndroid Build Coastguard Worker #ifdef WEBRTC_ENABLE_OBJC_SYMBOL_EXPORT 15*d9f75844SAndroid Build Coastguard Worker 16*d9f75844SAndroid Build Coastguard Worker #if defined(WEBRTC_LIBRARY_IMPL) 17*d9f75844SAndroid Build Coastguard Worker #define RTC_OBJC_EXPORT __attribute__((visibility("default"))) 18*d9f75844SAndroid Build Coastguard Worker #endif 19*d9f75844SAndroid Build Coastguard Worker 20*d9f75844SAndroid Build Coastguard Worker #endif // WEBRTC_ENABLE_OBJC_SYMBOL_EXPORT 21*d9f75844SAndroid Build Coastguard Worker 22*d9f75844SAndroid Build Coastguard Worker #ifndef RTC_OBJC_EXPORT 23*d9f75844SAndroid Build Coastguard Worker #define RTC_OBJC_EXPORT 24*d9f75844SAndroid Build Coastguard Worker #endif 25*d9f75844SAndroid Build Coastguard Worker 26*d9f75844SAndroid Build Coastguard Worker // Internal macros used to correctly concatenate symbols. 27*d9f75844SAndroid Build Coastguard Worker #define RTC_SYMBOL_CONCAT_HELPER(a, b) a##b 28*d9f75844SAndroid Build Coastguard Worker #define RTC_SYMBOL_CONCAT(a, b) RTC_SYMBOL_CONCAT_HELPER(a, b) 29*d9f75844SAndroid Build Coastguard Worker 30*d9f75844SAndroid Build Coastguard Worker // RTC_OBJC_TYPE_PREFIX 31*d9f75844SAndroid Build Coastguard Worker // 32*d9f75844SAndroid Build Coastguard Worker // Macro used to prepend a prefix to the API types that are exported with 33*d9f75844SAndroid Build Coastguard Worker // RTC_OBJC_EXPORT. 34*d9f75844SAndroid Build Coastguard Worker // 35*d9f75844SAndroid Build Coastguard Worker // Clients can patch the definition of this macro locally and build 36*d9f75844SAndroid Build Coastguard Worker // WebRTC.framework with their own prefix in case symbol clashing is a 37*d9f75844SAndroid Build Coastguard Worker // problem. 38*d9f75844SAndroid Build Coastguard Worker // 39*d9f75844SAndroid Build Coastguard Worker // This macro must only be defined here and not on via compiler flag to 40*d9f75844SAndroid Build Coastguard Worker // ensure it has a unique value. 41*d9f75844SAndroid Build Coastguard Worker #define RTC_OBJC_TYPE_PREFIX 42*d9f75844SAndroid Build Coastguard Worker 43*d9f75844SAndroid Build Coastguard Worker // RCT_OBJC_TYPE 44*d9f75844SAndroid Build Coastguard Worker // 45*d9f75844SAndroid Build Coastguard Worker // Macro used internally to declare API types. Declaring an API type without 46*d9f75844SAndroid Build Coastguard Worker // using this macro will not include the declared type in the set of types 47*d9f75844SAndroid Build Coastguard Worker // that will be affected by the configurable RTC_OBJC_TYPE_PREFIX. 48*d9f75844SAndroid Build Coastguard Worker #define RTC_OBJC_TYPE(type_name) RTC_SYMBOL_CONCAT(RTC_OBJC_TYPE_PREFIX, type_name) 49*d9f75844SAndroid Build Coastguard Worker 50*d9f75844SAndroid Build Coastguard Worker #if defined(__cplusplus) 51*d9f75844SAndroid Build Coastguard Worker #define RTC_EXTERN extern "C" RTC_OBJC_EXPORT 52*d9f75844SAndroid Build Coastguard Worker #else 53*d9f75844SAndroid Build Coastguard Worker #define RTC_EXTERN extern RTC_OBJC_EXPORT 54*d9f75844SAndroid Build Coastguard Worker #endif 55*d9f75844SAndroid Build Coastguard Worker 56*d9f75844SAndroid Build Coastguard Worker #ifdef __OBJC__ 57*d9f75844SAndroid Build Coastguard Worker #define RTC_FWD_DECL_OBJC_CLASS(classname) @class classname 58*d9f75844SAndroid Build Coastguard Worker #else 59*d9f75844SAndroid Build Coastguard Worker #define RTC_FWD_DECL_OBJC_CLASS(classname) typedef struct objc_object classname 60*d9f75844SAndroid Build Coastguard Worker #endif 61*d9f75844SAndroid Build Coastguard Worker 62*d9f75844SAndroid Build Coastguard Worker #endif // SDK_OBJC_BASE_RTCMACROS_H_ 63