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LauncherResult.h
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LauncherResult.h
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 https://mozilla.org/MPL/2.0/. */
#ifndef mozilla_LauncherResult_h
#define mozilla_LauncherResult_h
#include "mozilla/Result.h"
#include "mozilla/WinHeaderOnlyUtils.h"
namespace mozilla {
#if defined(MOZILLA_INTERNAL_API)
template <typename T>
using LauncherResult = WindowsErrorResult<T>;
#else
struct LauncherError {
LauncherError(const char* aFile, int aLine, WindowsError aWin32Error)
: mFile(aFile), mLine(aLine), mError(aWin32Error) {}
const char* mFile;
int mLine;
WindowsError mError;
bool operator==(const LauncherError& aOther) const {
return mError == aOther.mError;
}
bool operator!=(const LauncherError& aOther) const {
return mError != aOther.mError;
}
bool operator==(const WindowsError& aOther) const { return mError == aOther; }
bool operator!=(const WindowsError& aOther) const { return mError != aOther; }
};
template <typename T>
using LauncherResult = Result<T, LauncherError>;
#endif // defined(MOZILLA_INTERNAL_API)
using LauncherVoidResult = LauncherResult<Ok>;
} // namespace mozilla
#if defined(MOZILLA_INTERNAL_API)
# define LAUNCHER_ERROR_GENERIC() \
::mozilla::Err(::mozilla::WindowsError::CreateGeneric())
# define LAUNCHER_ERROR_FROM_WIN32(err) \
::mozilla::Err(::mozilla::WindowsError::FromWin32Error(err))
# define LAUNCHER_ERROR_FROM_LAST() \
::mozilla::Err(::mozilla::WindowsError::FromLastError())
# define LAUNCHER_ERROR_FROM_NTSTATUS(ntstatus) \
::mozilla::Err(::mozilla::WindowsError::FromNtStatus(ntstatus))
# define LAUNCHER_ERROR_FROM_HRESULT(hresult) \
::mozilla::Err(::mozilla::WindowsError::FromHResult(hresult))
#else
# define LAUNCHER_ERROR_GENERIC() \
::mozilla::Err(::mozilla::LauncherError( \
__FILE__, __LINE__, ::mozilla::WindowsError::CreateGeneric()))
# define LAUNCHER_ERROR_FROM_WIN32(err) \
::mozilla::Err(::mozilla::LauncherError( \
__FILE__, __LINE__, ::mozilla::WindowsError::FromWin32Error(err)))
# define LAUNCHER_ERROR_FROM_LAST() \
::mozilla::Err(::mozilla::LauncherError( \
__FILE__, __LINE__, ::mozilla::WindowsError::FromLastError()))
# define LAUNCHER_ERROR_FROM_NTSTATUS(ntstatus) \
::mozilla::Err(::mozilla::LauncherError( \
__FILE__, __LINE__, ::mozilla::WindowsError::FromNtStatus(ntstatus)))
# define LAUNCHER_ERROR_FROM_HRESULT(hresult) \
::mozilla::Err(::mozilla::LauncherError( \
__FILE__, __LINE__, ::mozilla::WindowsError::FromHResult(hresult)))
// This macro wraps the supplied WindowsError with a LauncherError
# define LAUNCHER_ERROR_FROM_MOZ_WINDOWS_ERROR(err) \
::mozilla::Err(::mozilla::LauncherError(__FILE__, __LINE__, err))
#endif // defined(MOZILLA_INTERNAL_API)
// This macro enables moving of a mozilla::LauncherError from a
// mozilla::LauncherResult<Foo> into a mozilla::LauncherResult<Bar>
#define LAUNCHER_ERROR_FROM_RESULT(result) ::mozilla::Err(result.unwrapErr())
#endif // mozilla_LauncherResult_h