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/*
* Copyright (C) 2025 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#ifdef __cplusplus
#include <WebKit/WKType.h>
namespace detail {
template<typename> struct TypeCheckHelper;
}
#define TYPE_CHECKER(type, checker) \
extern "C" WK_EXPORT WKTypeID checker(void); \
namespace detail { \
template<> struct TypeCheckHelper<type> { \
static WKTypeID typeID() { return checker(); } \
};\
} // namespace detail
TYPE_CHECKER(WKArrayRef, WKArrayGetTypeID);
TYPE_CHECKER(WKBooleanRef, WKBooleanGetTypeID);
TYPE_CHECKER(WKContextMenuItemRef, WKContextMenuItemGetTypeID);
TYPE_CHECKER(WKDataRef, WKDataGetTypeID);
TYPE_CHECKER(WKDictionaryRef, WKDictionaryGetTypeID);
TYPE_CHECKER(WKDoubleRef, WKDoubleGetTypeID);
TYPE_CHECKER(WKJSHandleRef, WKJSHandleGetTypeID);
TYPE_CHECKER(WKStringRef, WKStringGetTypeID);
TYPE_CHECKER(WKUInt64Ref, WKUInt64GetTypeID);
TYPE_CHECKER(WKURLRef, WKURLGetTypeID);
namespace WebKit {
template<typename T, typename U> inline T dynamic_wk_cast(U* object)
{
if (!object || WKGetTypeID(object) != detail::TypeCheckHelper<T>::typeID())
return nullptr;
return reinterpret_cast<T>(object);
}
template<typename> class WKRetainPtr;
template<typename T, typename U> inline WKRetainPtr<T> dynamic_wk_cast(RetainPtr<U> object)
{
return dynamic_wk_cast<T>(object.get());
}
} // namespace WebKit
using WebKit::dynamic_wk_cast;
#endif
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