| // Copyright 2017 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef IOS_WEB_VIEW_PUBLIC_CWV_EXPORT_H_ |
| #define IOS_WEB_VIEW_PUBLIC_CWV_EXPORT_H_ |
| |
| // All public classes in //ios/web_view must be prefixed with CWV_EXPORT, so |
| // that clients of //ios/web_view dynamic library can link them. |
| // |
| // This is because a dynamic library only exports symbols marked |
| // __attribute__((visibility("default"))). |
| // |
| // Define a macro CWV_EXPORT instead of directly using __attribute__. |
| // This makes it possible to export symbols only when *building* the dynamic |
| // library (by checking CWV_IMPLEMENTATION), not when *using* the dynamic |
| // library. |
| #if defined(CWV_IMPLEMENTATION) |
| #define CWV_EXPORT __attribute__((visibility("default"))) |
| #else |
| #define CWV_EXPORT |
| #endif |
| |
| #endif // IOS_WEB_VIEW_PUBLIC_CWV_EXPORT_H_ |
