WebrtcLocation.h - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=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 DOM_MEDIA_WEBRTC_LIBWEBRTCGLUE_WEBRTCLOCATION_H_

#define DOM_MEDIA_WEBRTC_LIBWEBRTCGLUE_WEBRTCLOCATION_H_

// See bug 1973646 for moving this file to use std::source_location.

#ifdef __has_builtin

#  define MOZ_HAS_BUILTIN(bi) __has_builtin(bi)

#else

// Note: For toolchains without __has_builtin, we define MOZ_HAS_BUILTIN to

// return true on modern-enough MSVC, and otherwise false.

#  define MOZ_HAS_BUILTIN(bi) _MSC_VER >= 1926

#endif

#if MOZ_HAS_BUILTIN(__builtin_FUNCTION)

#  define MOZ_BUILTIN_FUNCTION __builtin_FUNCTION

#else

#  define MOZ_BUILTIN_FUNCTION() nullptr

#endif

#if MOZ_HAS_BUILTIN(__builtin_FILE)

#  define MOZ_BUILTIN_FILE __builtin_FILE

#else

#  define MOZ_BUILTIN_FILE() nullptr

#endif

#if MOZ_HAS_BUILTIN(__builtin_LINE)

#  define MOZ_BUILTIN_LINE __builtin_LINE

#else

#  define MOZ_BUILTIN_LINE() 0

#endif

namespace mozilla {

class WebrtcLocation {

 private:

  WebrtcLocation(const char* aFunction, const char* aFile, int aLine)

      : mFunction(aFunction), mFile(aFile), mLine(aLine) {}

 public:

  static WebrtcLocation Current(const char* aFunction = MOZ_BUILTIN_FUNCTION(),

                                const char* aFile = MOZ_BUILTIN_FILE(),

                                int aLine = MOZ_BUILTIN_LINE()) {

    return WebrtcLocation(aFunction, aFile, aLine);

  const char* const mFunction;

  const char* const mFile;

  const int mLine;

};

}  // namespace mozilla

#undef MOZ_BUILTIN_FUNCTION

#undef MOZ_BUILTIN_FILE

#undef MOZ_BUILTIN_LINE

#undef MOZ_HAS_BUILTIN

#endif