diff options
Diffstat (limited to 'third_party/libwebrtc/sdk/objc/base/RTCMacros.h')
| -rw-r--r-- | third_party/libwebrtc/sdk/objc/base/RTCMacros.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/third_party/libwebrtc/sdk/objc/base/RTCMacros.h b/third_party/libwebrtc/sdk/objc/base/RTCMacros.h new file mode 100644 index 0000000000..469e3c93bd --- /dev/null +++ b/third_party/libwebrtc/sdk/objc/base/RTCMacros.h @@ -0,0 +1,62 @@ +/* + * Copyright 2016 The WebRTC Project Authors. All rights reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +#ifndef SDK_OBJC_BASE_RTCMACROS_H_ +#define SDK_OBJC_BASE_RTCMACROS_H_ + +#ifdef WEBRTC_ENABLE_OBJC_SYMBOL_EXPORT + +#if defined(WEBRTC_LIBRARY_IMPL) +#define RTC_OBJC_EXPORT __attribute__((visibility("default"))) +#endif + +#endif // WEBRTC_ENABLE_OBJC_SYMBOL_EXPORT + +#ifndef RTC_OBJC_EXPORT +#define RTC_OBJC_EXPORT +#endif + +// Internal macros used to correctly concatenate symbols. +#define RTC_SYMBOL_CONCAT_HELPER(a, b) a##b +#define RTC_SYMBOL_CONCAT(a, b) RTC_SYMBOL_CONCAT_HELPER(a, b) + +// RTC_OBJC_TYPE_PREFIX +// +// Macro used to prepend a prefix to the API types that are exported with +// RTC_OBJC_EXPORT. +// +// Clients can patch the definition of this macro locally and build +// WebRTC.framework with their own prefix in case symbol clashing is a +// problem. +// +// This macro must only be defined here and not on via compiler flag to +// ensure it has a unique value. +#define RTC_OBJC_TYPE_PREFIX + +// RCT_OBJC_TYPE +// +// Macro used internally to declare API types. Declaring an API type without +// using this macro will not include the declared type in the set of types +// that will be affected by the configurable RTC_OBJC_TYPE_PREFIX. +#define RTC_OBJC_TYPE(type_name) RTC_SYMBOL_CONCAT(RTC_OBJC_TYPE_PREFIX, type_name) + +#if defined(__cplusplus) +#define RTC_EXTERN extern "C" RTC_OBJC_EXPORT +#else +#define RTC_EXTERN extern RTC_OBJC_EXPORT +#endif + +#ifdef __OBJC__ +#define RTC_FWD_DECL_OBJC_CLASS(classname) @class classname +#else +#define RTC_FWD_DECL_OBJC_CLASS(classname) typedef struct objc_object classname +#endif + +#endif // SDK_OBJC_BASE_RTCMACROS_H_ |