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/*
* Copyright (C) 2022 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. ``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
* 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
namespace WebCore {
class WebCoreOpaqueRoot {
public:
template<typename T, typename = typename std::enable_if_t<!std::is_same_v<T, void>>>
explicit WebCoreOpaqueRoot(T* pointer)
: m_pointer(static_cast<void*>(pointer))
{
}
WebCoreOpaqueRoot(std::nullptr_t) { }
bool isNode() const { return false; }
void* pointer() const { return m_pointer; }
private:
void* m_pointer { nullptr };
bool m_isNode { false };
};
template<typename Visitor>
ALWAYS_INLINE void addWebCoreOpaqueRoot(Visitor& visitor, WebCoreOpaqueRoot root)
{
visitor.addOpaqueRoot(root.pointer());
}
template<typename Visitor, typename ImplType>
ALWAYS_INLINE void addWebCoreOpaqueRoot(Visitor& visitor, ImplType* impl)
{
addWebCoreOpaqueRoot(visitor, root(impl));
}
template<typename Visitor, typename ImplType>
ALWAYS_INLINE void addWebCoreOpaqueRoot(Visitor& visitor, ImplType& impl)
{
addWebCoreOpaqueRoot(visitor, root(&impl));
}
template<typename Visitor>
ALWAYS_INLINE bool containsWebCoreOpaqueRoot(Visitor& visitor, WebCoreOpaqueRoot root)
{
return visitor.containsOpaqueRoot(root.pointer());
}
template<typename Visitor, typename ImplType>
ALWAYS_INLINE bool containsWebCoreOpaqueRoot(Visitor& visitor, ImplType& impl)
{
return containsWebCoreOpaqueRoot(visitor, root(&impl));
}
template<typename Visitor, typename ImplType>
ALWAYS_INLINE bool containsWebCoreOpaqueRoot(Visitor& visitor, ImplType* impl)
{
return containsWebCoreOpaqueRoot(visitor, root(impl));
}
} // namespace WebCore
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