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Sprout/sprout/assert.hpp
2017-07-29 14:20:01 +09:00

264 lines
7.4 KiB
C++

/*=============================================================================
Copyright (c) 2011-2017 Bolero MURAKAMI
https://github.com/bolero-MURAKAMI/Sprout
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef SPROUT_ASEERT_HPP
#define SPROUT_ASEERT_HPP
#if defined(SPROUT_DISABLE_ASSERTS) || defined(NDEBUG)
# include <sprout/config.hpp>
# include <sprout/preprocessor/config.hpp>
# include <sprout/preprocessor/cat.hpp>
# include <sprout/preprocessor/variadic/size.hpp>
#elif defined(SPROUT_ENABLE_ASSERT_HANDLER)
# include <sprout/config.hpp>
# include <sprout/preprocessor/config.hpp>
# include <sprout/preprocessor/cat.hpp>
# include <sprout/preprocessor/variadic/size.hpp>
#else
# include <cstdlib>
# include <iostream>
# include <sprout/config.hpp>
# include <sprout/preprocessor/config.hpp>
# include <sprout/preprocessor/cat.hpp>
# include <sprout/preprocessor/variadic/size.hpp>
#endif
#include <sprout/preprocessor/stringize.hpp>
//
// SPROUT_ASSERTION_FAILED_FORMAT
//
#ifndef SPROUT_ASSERTION_FAILED_FORMAT
# define SPROUT_ASSERTION_FAILED_FORMAT(expr, file, line) \
"***** Internal Program Error - assertion (" #expr ") failed: " file "(" SPROUT_PP_STRINGIZE(line) ")"
#endif
//
// SPROUT_ASSERT_MSG
//
#if defined(SPROUT_DISABLE_ASSERTS) || defined(NDEBUG)
# define SPROUT_ASSERT_MSG(expr, msg) \
((void)0)
#elif defined(SPROUT_ENABLE_ASSERT_HANDLER)
namespace sprout {
//
// assertion_info_msg
//
class assertion_info_msg {
private:
char const* expr_;
char const* msg_;
char const* function_;
char const* file_;
long line_;
public:
SPROUT_CONSTEXPR assertion_info_msg(char const* expr, char const* msg, char const* function, char const* file, long line)
: expr_(expr), msg_(msg), function_(function), file_(file), line_(line)
{}
SPROUT_CONSTEXPR char const* expr() const SPROUT_NOEXCEPT {
return expr_;
}
SPROUT_CONSTEXPR char const* msg() const SPROUT_NOEXCEPT {
return msg_;
}
SPROUT_CONSTEXPR char const* function() const SPROUT_NOEXCEPT {
return function_;
}
SPROUT_CONSTEXPR char const* file() const SPROUT_NOEXCEPT {
return file_;
}
SPROUT_CONSTEXPR long line() const SPROUT_NOEXCEPT {
return line_;
}
};
//
// assertion_failed_msg
// * user defined
//
void
assertion_failed_msg(sprout::assertion_info_msg const&);
} // namespace sprout
namespace sprout {
namespace detail {
inline bool
assertion_failed_msg(bool cond, char const* formatted, char const* expr, char const* msg, char const* function, char const* file, long line) {
return cond ? true
: ((void)sprout::assertion_failed_msg(sprout::assertion_info_msg(expr, msg, function, file, line)), false)
;
}
inline SPROUT_CONSTEXPR bool
assertion_check_msg(bool cond, char const* formatted, char const* expr, char const* msg, char const* function, char const* file, long line) {
return cond ? true
: sprout::detail::assertion_failed_msg(cond, formatted, expr, msg, function, file, line)
;
}
} // namespace detail
} // namespace sprout
# define SPROUT_ASSERT_MSG(expr, msg) ( \
(void)sprout::detail::assertion_check_msg( \
(expr), SPROUT_ASSERTION_FAILED_FORMAT(expr, __FILE__, __LINE__), \
#expr, msg, "(unknown)"/*SPROUT_CURRENT_FUNCTION*/, __FILE__, __LINE__ \
) \
)
#else
namespace sprout {
namespace detail {
inline SPROUT_NON_CONSTEXPR bool
assertion_failed_msg(char const* formatted, char const* msg) {
return (std::cerr << formatted << ": " << msg << std::endl), std::abort(), false;
}
inline SPROUT_CONSTEXPR bool
assertion_check_msg(bool cond, char const* formatted, char const* msg) {
return cond ? true
: sprout::detail::assertion_failed_msg(formatted, msg)
;
}
} // namespace detail
} // namespace sprout
# define SPROUT_ASSERT_MSG(expr, msg) \
((void)sprout::detail::assertion_check_msg((expr), SPROUT_ASSERTION_FAILED_FORMAT(expr, __FILE__, __LINE__), msg))
#endif
//
// SPROUT_ASSERT
//
#if defined(SPROUT_DISABLE_ASSERTS) || defined(NDEBUG)
# define SPROUT_ASSERT_1(expr) \
((void)0)
#elif defined(SPROUT_ENABLE_ASSERT_HANDLER)
namespace sprout {
//
// assertion_info
//
class assertion_info {
private:
char const* expr_;
char const* function_;
char const* file_;
long line_;
public:
SPROUT_CONSTEXPR assertion_info(char const* expr, char const* function, char const* file, long line)
: expr_(expr), function_(function), file_(file), line_(line)
{}
SPROUT_CONSTEXPR char const* expr() const SPROUT_NOEXCEPT {
return expr_;
}
SPROUT_CONSTEXPR char const* function() const SPROUT_NOEXCEPT {
return function_;
}
SPROUT_CONSTEXPR char const* file() const SPROUT_NOEXCEPT {
return file_;
}
SPROUT_CONSTEXPR long line() const SPROUT_NOEXCEPT {
return line_;
}
};
//
// assertion_failed
// * user defined
//
void
assertion_failed(sprout::assertion_info const&);
} // namespace sprout
namespace sprout {
namespace detail {
inline SPROUT_NON_CONSTEXPR bool
assertion_failed(bool cond, char const* formatted, char const* expr, char const* function, char const* file, long line) {
return cond ? true
: ((void)sprout::assertion_failed(sprout::assertion_info(expr, function, file, line)), false)
;
}
inline SPROUT_CONSTEXPR bool
assertion_check(bool cond, char const* formatted, char const* expr, char const* function, char const* file, long line) {
return cond ? true
: sprout::detail::assertion_failed(cond, formatted, expr, function, file, line)
;
}
} // namespace detail
} // namespace sprout
# define SPROUT_ASSERT_1(expr) \
(void)sprout::detail::assertion_check( \
(expr), SPROUT_ASSERTION_FAILED_FORMAT(expr, __FILE__, __LINE__), \
#expr, "(unknown)"/*SPROUT_CURRENT_FUNCTION*/, __FILE__, __LINE__ \
) \
)
#else
namespace sprout {
namespace detail {
inline SPROUT_NON_CONSTEXPR bool
assertion_failed(char const* formatted) {
return (std::cerr << formatted << std::endl), std::abort(), false;
}
inline SPROUT_CONSTEXPR bool
assertion_check(bool cond, char const* formatted) {
return cond ? true
: sprout::detail::assertion_failed(formatted)
;
}
} // namespace detail
} // namespace sprout
# define SPROUT_ASSERT_1(expr) \
((void)sprout::detail::assertion_check((expr), SPROUT_ASSERTION_FAILED_FORMAT(expr, __FILE__, __LINE__)))
#endif
#if SPROUT_PP_VARIADICS
# define SPROUT_ASSERT_2(expr, msg) \
SPROUT_ASSERT_MSG(expr, msg)
# define SPROUT_ASSERT(...) \
SPROUT_PP_CAT(SPROUT_ASSERT_, SPROUT_PP_VARIADIC_SIZE(__VA_ARGS__))(__VA_ARGS__)
#else
# define SPROUT_ASSERT(expr) \
SPROUT_ASSERT_1(expr)
#endif
//
// SPROUT_VERIFY
//
#if defined(SPROUT_DISABLE_ASSERTS) || (!defined(SPROUT_ENABLE_ASSERT_HANDLER) && defined(NDEBUG))
namespace sprout {
namespace detail {
inline SPROUT_CONSTEXPR bool
verification_disabled(bool) SPROUT_NOEXCEPT {
return true;
}
} // namespace detail
} // namespace sprout
# define SPROUT_VERIFY(expr) \
((void)(sprout::detail::verification_disabled((expr))))
#else
# define SPROUT_VERIFY(expr) \
SPROUT_ASSERT(expr)
#endif
#endif // #ifndef SPROUT_ASEERT_HPP