48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_PARAMTRAITS_TIEDFIELDS_H
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#define MOZILLA_PARAMTRAITS_TIEDFIELDS_H
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#include "ipc/IPCMessageUtils.h"
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#include "mozilla/ipc/IPDLParamTraits.h"
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#include "TiedFields.h"
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namespace IPC {
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template <class T>
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struct ParamTraits_TiedFields {
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static_assert(mozilla::AssertTiedFieldsAreExhaustive<T>());
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static void Write(MessageWriter* const writer, const T& in) {
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const auto& fields = mozilla::TiedFields(in);
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mozilla::MapTuple(fields, [&](const auto& field) {
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WriteParam(writer, field);
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return true; // ignored
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});
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}
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static bool Read(MessageReader* const reader, T* const out) {
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const auto& fields = mozilla::TiedFields(*out);
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bool ok = true;
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mozilla::MapTuple(fields, [&](auto& field) {
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if (ok) {
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ok &= ReadParam(reader, &field);
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}
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return true; // ignored
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});
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return ok;
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}
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};
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// -
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template <class U, size_t N>
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struct ParamTraits<mozilla::PaddingField<U, N>> final
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: public ParamTraits_TiedFields<mozilla::PaddingField<U, N>> {};
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} // namespace IPC
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#endif
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