diff options
Diffstat (limited to 'include/ruby/impl/attr/nodiscard.h')
| -rw-r--r-- | include/ruby/impl/attr/nodiscard.h | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/include/ruby/impl/attr/nodiscard.h b/include/ruby/impl/attr/nodiscard.h deleted file mode 100644 index ee3a1347df..0000000000 --- a/include/ruby/impl/attr/nodiscard.h +++ /dev/null @@ -1,45 +0,0 @@ -#ifndef RBIMPL_ATTR_NODISCARD_H /*-*-C++-*-vi:se ft=cpp:*/ -#define RBIMPL_ATTR_NODISCARD_H -/** - * @file - * @author Ruby developers <ruby-core@ruby-lang.org> - * @copyright This file is a part of the programming language Ruby. - * Permission is hereby granted, to either redistribute and/or - * modify this file, provided that the conditions mentioned in the - * file COPYING are met. Consult the file for details. - * @warning Symbols prefixed with either `RBIMPL` or `rbimpl` are - * implementation details. Don't take them as canon. They could - * rapidly appear then vanish. The name (path) of this header file - * is also an implementation detail. Do not expect it to persist - * at the place it is now. Developers are free to move it anywhere - * anytime at will. - * @note To ruby-core: remember that this header can be possibly - * recursively included from extension libraries written in C++. - * Do not expect for instance `__VA_ARGS__` is always available. - * We assume C99 for ruby itself but we don't assume languages of - * extension libraries. They could be written in C++98. - * @brief Defines #RBIMPL_ATTR_NODISCARD. - */ -#include "ruby/impl/has/attribute.h" -#include "ruby/impl/has/c_attribute.h" -#include "ruby/impl/has/cpp_attribute.h" - -/** - * Wraps (or simulates) `[[nodiscard]]`. In C++ (at least since C++20) a - * nodiscard attribute can have a message why the result shall not be ignoed. - * However GCC attribute and SAL annotation cannot take them. - */ -#if RBIMPL_HAS_CPP_ATTRIBUTE(nodiscard) -# define RBIMPL_ATTR_NODISCARD() [[nodiscard]] -#elif RBIMPL_HAS_C_ATTRIBUTE(nodiscard) -# define RBIMPL_ATTR_NODISCARD() [[nodiscard]] -#elif RBIMPL_HAS_ATTRIBUTE(warn_unused_result) -# define RBIMPL_ATTR_NODISCARD() __attribute__((__warn_unused_result__)) -#elif defined(_Check_return_) -# /* Take SAL definition. */ -# define RBIMPL_ATTR_NODISCARD() _Check_return_ -#else -# define RBIMPL_ATTR_NODISCARD() /* void */ -#endif - -#endif /* RBIMPL_ATTR_NODISCARD_H */ |