e1f17a0b35
Not sure if we should check revision too, but this is good enough for what we want.
This will be needed to load the correct Microsoft.Build when we switch to the nuget version.
Manual cherry-pick of af4acb5b11 (relevant parts)
106 lines
4 KiB
C++
106 lines
4 KiB
C++
/*************************************************************************/
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/* macros.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef UTIL_MACROS_H
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#define UTIL_MACROS_H
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#define _GD_VARNAME_CONCAT_B_(m_ignore, m_name) m_name
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#define _GD_VARNAME_CONCAT_A_(m_a, m_b, m_c) _GD_VARNAME_CONCAT_B_(hello there, m_a##m_b##m_c)
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#define _GD_VARNAME_CONCAT_(m_a, m_b, m_c) _GD_VARNAME_CONCAT_A_(m_a, m_b, m_c)
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#define GD_UNIQUE_NAME(m_name) _GD_VARNAME_CONCAT_(m_name, _, __COUNTER__)
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// static assert
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// TODO: Get rid of this macro once we upgrade to C++11
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#ifdef __cpp_static_assert
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#define GD_STATIC_ASSERT(m_cond) static_assert((m_cond), "Condition '" #m_cond "' failed")
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#else
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#define GD_STATIC_ASSERT(m_cond) typedef int GD_UNIQUE_NAME(godot_static_assert)[((m_cond) ? 1 : -1)]
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#endif
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// final
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// TODO: Get rid of this macro once we upgrade to C++11
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#if (__cplusplus >= 201103L)
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#define GD_FINAL final
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#else
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#define GD_FINAL
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#endif
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// noreturn
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// TODO: Get rid of this macro once we upgrade to C++11
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#if (__cplusplus >= 201103L)
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#define GD_NORETURN [[noreturn]]
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#elif defined(__GNUC__)
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#define GD_NORETURN __attribute__((noreturn))
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#elif defined(_MSC_VER)
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#define GD_NORETURN __declspec(noreturn)
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#else
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#define GD_NORETURN
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#pragma message "Macro GD_NORETURN will have no effect"
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#endif
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// unreachable
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#if defined(_MSC_VER)
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#define GD_UNREACHABLE() __assume(0)
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#elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__) >= 405
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#define GD_UNREACHABLE() __builtin_unreachable()
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#else
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#define GD_UNREACHABLE() \
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CRASH_NOW(); \
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do { \
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} while (true);
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#endif
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namespace gdmono {
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template <typename F>
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struct ScopeExit {
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ScopeExit(F p_exit_func) :
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exit_func(p_exit_func) {}
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~ScopeExit() { exit_func(); }
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F exit_func;
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};
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class ScopeExitAux {
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public:
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template <typename F>
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ScopeExit<F> operator+(F p_exit_func) { return ScopeExit<F>(p_exit_func); }
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};
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} // namespace gdmono
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#define SCOPE_EXIT \
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auto GD_UNIQUE_NAME(gd_scope_exit) = gdmono::ScopeExitAux() + [=]() -> void
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#endif // UTIL_MACROS_H
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