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/*
* Copyright (C) 2018 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
#include <wtf/Optional.h>
namespace WebCore {
// Frame identifier that is unique across all WebContent processes.
struct GlobalFrameIdentifier {
uint64_t pageID;
uint64_t frameID;
template<class Encoder> void encode(Encoder&) const;
template<class Decoder> static std::optional<GlobalFrameIdentifier> decode(Decoder&);
};
template<class Encoder>
void GlobalFrameIdentifier::encode(Encoder& encoder) const
{
encoder << pageID << frameID;
}
template<class Decoder>
std::optional<GlobalFrameIdentifier> GlobalFrameIdentifier::decode(Decoder& decoder)
{
std::optional<uint64_t> pageID;
decoder >> pageID;
if (!pageID)
return std::nullopt;
std::optional<uint64_t> frameID;
decoder >> frameID;
if (!frameID)
return std::nullopt;
return { { WTFMove(*pageID), WTFMove(*frameID) } };
}
} // namespace WebCore