d6075a00e6
This means other headers that need these ParamTraits don't also include all the other things that WebGLIpdl.h needs, like WebGLTypes.h. This reduces the preprocessed size of modules outside of dom/canvas, hopefully improving compilation speed, and reducing breadth of recompiles. Differential Revision: https://phabricator.services.mozilla.com/D229865
49 lines
1.3 KiB
C++
49 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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