errors.h

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#pragma once
 
#if (__cpp_lib_unreachable >= 202202L)
#include <utility>
#endif
 
#include <SDL3/SDL_log.h>
#include <SDL3/SDL_assert.h>
#include <stdexcept>
#include <string>
#include <string_view>
#include <format>
#include <source_location>
 
namespace candlewick {
 
[[noreturn]] inline void unreachable() {
#if (__cpp_lib_unreachable >= 202202L)
  std::unreachable();
#elif defined(_MSC_VER)
  __assume(false);
#else
  __builtin_unreachable();
#endif
}

struct RAIIException : std::runtime_error {
  RAIIException(std::string_view msg, std::source_location location =
                                          std::source_location::current());
};
 
namespace detail {
 
  std::string _error_message_impl(std::string_view fname,
                                  std::string_view fmtstr,
                                  std::format_args args);
 
  template <typename... Ts>
  std::string error_message_format(std::string_view fname,
                                   std::string_view _fmtstr, Ts &&...args) {
    return _error_message_impl(fname.data(), _fmtstr,
                               std::make_format_args(args...));
  }
 
} // namespace detail
 
template <typename... Ts>
[[noreturn]]
void terminate_with_message(std::source_location location, std::string_view fmt,
                            Ts &&...args) {
  throw std::runtime_error(detail::error_message_format(
      location.function_name(), fmt, std::forward<Ts>(args)...));
}
 
template <typename... Ts>
[[noreturn]]
void terminate_with_message(std::string_view fmt, Ts &&...args) {
  terminate_with_message(std::source_location::current(), fmt,
                         std::forward<Ts>(args)...);
}
 
[[noreturn]]
inline void unreachable_with_message(
    std::string_view msg,
    std::source_location location = std::source_location::current()) {
  SDL_LogError(
      SDL_LOG_CATEGORY_APPLICATION, "%s",
      detail::error_message_format(location.function_name(), "{:s}", msg)
          .c_str());
  ::candlewick::unreachable();
}
 
} // namespace candlewick