Luna/luna/include/luna/Check.h

#pragma once

[[noreturn]] extern bool __check_failed(const char* file, const char* line, const char* func, const char* expr);

#ifndef STRINGIZE_VALUE_OF
#define STRINGIZE(x) #x
#define STRINGIZE_VALUE_OF(x) STRINGIZE(x)
#endif

#define expect(expr, message)                                                                                          \
    do {                                                                                                               \
        if (!(expr)) [[unlikely]]                                                                                      \
        {                                                                                                              \
            __check_failed(__FILE__, STRINGIZE_VALUE_OF(__LINE__), __PRETTY_FUNCTION__, message);                      \
        }                                                                                                              \
    } while (0)

#define check(expr)                                                                                                    \
    do {                                                                                                               \
        if (!(expr)) [[unlikely]]                                                                                      \
        {                                                                                                              \
            __check_failed(__FILE__, STRINGIZE_VALUE_OF(__LINE__), __PRETTY_FUNCTION__, #expr);                        \
        }                                                                                                              \
    } while (0)

#define unreachable()                                                                                                  \
    __check_failed(__FILE__, STRINGIZE_VALUE_OF(__LINE__), __PRETTY_FUNCTION__, "Reached unreachable code")