/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-

 * vim: sw=4 ts=4 et :

 */

/* 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_throw_gcc_h

#define mozilla_throw_gcc_h

#include "mozilla/Attributes.h"

#include <stdio.h>   // snprintf

#include <string.h>  // strerror

// For gcc, we define these inline to abort so that we're absolutely

// certain that (i) no exceptions are thrown from Gecko; (ii) these

// errors are always terminal and caught by breakpad.

#include "mozilla/mozalloc_abort.h"

// libc++ 4.0.0 and higher use C++11 [[noreturn]] attributes for the functions

// below, and since clang does not allow mixing __attribute__((noreturn)) and

// [[noreturn]], we have to explicitly use the latter here.  See bug 1329520.

#if defined(__clang__)

#if __has_feature(cxx_attributes) && defined(_LIBCPP_VERSION) && \

    _LIBCPP_VERSION >= 4000

#define MOZ_THROW_NORETURN [[noreturn]]

#endif

#endif

#ifndef MOZ_THROW_NORETURN

#define MOZ_THROW_NORETURN MOZ_NORETURN

#endif

// MinGW doesn't appropriately inline these functions in debug builds,

// so we need to do some extra coercion for it to do so. Bug 1332747

#ifdef __MINGW32__

#define MOZ_THROW_INLINE MOZ_ALWAYS_INLINE_EVEN_DEBUG

#define MOZ_THROW_EXPORT

#else

#define MOZ_THROW_INLINE MOZ_ALWAYS_INLINE

#define MOZ_THROW_EXPORT MOZ_EXPORT

#endif

namespace std {

// NB: user code is not supposed to touch the std:: namespace.  We're

// doing this after careful review because we want to define our own

// exception throwing semantics.  Don't try this at home!

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_exception(

    void) {

  mozalloc_abort("fatal: STL threw bad_exception");

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_alloc(

    void) {

  mozalloc_abort("fatal: STL threw bad_alloc");

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_cast(

    void) {

  mozalloc_abort("fatal: STL threw bad_cast");

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_typeid(

    void) {

  mozalloc_abort("fatal: STL threw bad_typeid");

}

// used by <functional>

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void

__throw_bad_function_call(void) {

  mozalloc_abort("fatal: STL threw bad_function_call");

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_logic_error(

    const char* msg) {

  mozalloc_abort(msg);

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_domain_error(

    const char* msg) {

  mozalloc_abort(msg);

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void

__throw_invalid_argument(const char* msg) {

  mozalloc_abort(msg);

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_length_error(

    const char* msg) {

  mozalloc_abort(msg);

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_out_of_range(

    const char* msg) {

  mozalloc_abort(msg);

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_runtime_error(

    const char* msg) {

  mozalloc_abort(msg);

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_range_error(

    const char* msg) {

  mozalloc_abort(msg);

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void

__throw_overflow_error(const char* msg) {

  mozalloc_abort(msg);

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void

__throw_underflow_error(const char* msg) {

  mozalloc_abort(msg);

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_ios_failure(

    const char* msg) {

  mozalloc_abort(msg);

}

MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_system_error(

    int err) {

  char error[128];

  snprintf(error, sizeof(error) - 1, "fatal: STL threw system_error: %s (%d)",

           strerror(err), err);

  mozalloc_abort(error);

}

}  // namespace std

#undef MOZ_THROW_NORETURN

#undef MOZ_THROW_INLINE

#endif  // mozilla_throw_gcc_h