73 lines
3.2 KiB
C++
73 lines
3.2 KiB
C++
/*************************************************************************/
|
|
/* macros.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
|
|
#ifndef UTIL_MACROS_H
|
|
#define UTIL_MACROS_H
|
|
|
|
#define _GD_VARNAME_CONCAT_B_(m_ignore, m_name) m_name
|
|
#define _GD_VARNAME_CONCAT_A_(m_a, m_b, m_c) _GD_VARNAME_CONCAT_B_(hello there, m_a##m_b##m_c)
|
|
#define _GD_VARNAME_CONCAT_(m_a, m_b, m_c) _GD_VARNAME_CONCAT_A_(m_a, m_b, m_c)
|
|
#define GD_UNIQUE_NAME(m_name) _GD_VARNAME_CONCAT_(m_name, _, __COUNTER__)
|
|
|
|
// unreachable
|
|
|
|
#if defined(_MSC_VER)
|
|
#define GD_UNREACHABLE() __assume(0)
|
|
#elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
|
|
#define GD_UNREACHABLE() __builtin_unreachable()
|
|
#else
|
|
#define GD_UNREACHABLE() \
|
|
CRASH_NOW(); \
|
|
do { \
|
|
} while (true)
|
|
#endif
|
|
|
|
namespace gdmono {
|
|
|
|
template <typename F>
|
|
struct ScopeExit {
|
|
ScopeExit(F p_exit_func) :
|
|
exit_func(p_exit_func) {}
|
|
~ScopeExit() { exit_func(); }
|
|
F exit_func;
|
|
};
|
|
|
|
class ScopeExitAux {
|
|
public:
|
|
template <typename F>
|
|
ScopeExit<F> operator+(F p_exit_func) { return ScopeExit<F>(p_exit_func); }
|
|
};
|
|
} // namespace gdmono
|
|
|
|
#define SCOPE_EXIT \
|
|
auto GD_UNIQUE_NAME(gd_scope_exit) = gdmono::ScopeExitAux() + [=]() -> void
|
|
|
|
#endif // UTIL_MACROS_H
|