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
84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef MOZILLA_PARAMTRAITS_STL_H
|
|
#define MOZILLA_PARAMTRAITS_STL_H
|
|
|
|
#include "ipc/IPCMessageUtils.h"
|
|
#include "mozilla/ipc/IPDLParamTraits.h"
|
|
|
|
#include <memory>
|
|
|
|
namespace IPC {
|
|
|
|
template <typename U, size_t N>
|
|
struct ParamTraits<std::array<U, N>> final {
|
|
using T = std::array<U, N>;
|
|
|
|
static void Write(MessageWriter* const writer, const T& in) {
|
|
for (const auto& v : in) {
|
|
WriteParam(writer, v);
|
|
}
|
|
}
|
|
|
|
static bool Read(MessageReader* const reader, T* const out) {
|
|
for (auto& v : *out) {
|
|
if (!ReadParam(reader, &v)) return false;
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
|
|
// -
|
|
|
|
template <typename U, size_t N>
|
|
struct ParamTraits<U[N]> final {
|
|
using T = U[N];
|
|
static constexpr size_t kByteSize = sizeof(U) * N;
|
|
|
|
static_assert(std::is_trivial<U>::value);
|
|
|
|
static void Write(MessageWriter* const writer, const T& in) {
|
|
writer->WriteBytes(in, kByteSize);
|
|
}
|
|
|
|
static bool Read(MessageReader* const reader, T* const out) {
|
|
if (!reader->HasBytesAvailable(kByteSize)) {
|
|
return false;
|
|
}
|
|
return reader->ReadBytesInto(*out, kByteSize);
|
|
}
|
|
};
|
|
|
|
// -
|
|
|
|
template <class U>
|
|
struct ParamTraits<std::optional<U>> final {
|
|
using T = std::optional<U>;
|
|
|
|
static void Write(MessageWriter* const writer, const T& in) {
|
|
WriteParam(writer, bool{in});
|
|
if (in) {
|
|
WriteParam(writer, *in);
|
|
}
|
|
}
|
|
|
|
static bool Read(MessageReader* const reader, T* const out) {
|
|
bool isSome;
|
|
if (!ReadParam(reader, &isSome)) return false;
|
|
|
|
if (!isSome) {
|
|
out->reset();
|
|
return true;
|
|
}
|
|
out->emplace();
|
|
return ReadParam(reader, &**out);
|
|
}
|
|
};
|
|
|
|
} // namespace IPC
|
|
|
|
#endif
|