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author卜部昌平 <shyouhei@ruby-lang.org>2020-05-08 18:10:13 +0900
committer卜部昌平 <shyouhei@ruby-lang.org>2020-05-11 09:24:08 +0900
commitb85fd1d690b65efaa126cf9c24da73f31eee7a4e (patch)
treee9bb5dbc7cea460fa8f209308c798eb783a33167 /include/ruby/impl/has/cpp_attribute.h
parent0d88fe3a7278e3dab2675c1fe2c0f184d0624da2 (diff)
downloadruby-b85fd1d690b65efaa126cf9c24da73f31eee7a4e.tar.gz
mv include/ruby/{impl,internal}
Devs do not love "impl".
Diffstat (limited to 'include/ruby/impl/has/cpp_attribute.h')
-rw-r--r--include/ruby/impl/has/cpp_attribute.h79
1 files changed, 0 insertions, 79 deletions
diff --git a/include/ruby/impl/has/cpp_attribute.h b/include/ruby/impl/has/cpp_attribute.h
deleted file mode 100644
index 12847a11d6..0000000000
--- a/include/ruby/impl/has/cpp_attribute.h
+++ /dev/null
@@ -1,79 +0,0 @@
-#ifndef RBIMPL_HAS_CPP_ATTRIBUTE_H /*-*-C++-*-vi:se ft=cpp:*/
-#define RBIMPL_HAS_CPP_ATTRIBUTE_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_HAS_CPP_ATTRIBUTE.
- */
-#include "ruby/impl/compiler_is.h"
-#include "ruby/impl/compiler_since.h"
-#include "ruby/impl/token_paste.h"
-
-/** @cond INTERNAL_MACRO */
-#if defined(__has_cpp_attribute)
-# define RBIMPL_HAS_CPP_ATTRIBUTE0(_) __has_cpp_attribute(_)
-
-#elif RBIMPL_COMPILER_IS(MSVC)
-# /* MSVC has never updated its __cplusplus since forever (unless specified
-# * explicitly by a compiler flag). They also lack __has_cpp_attribute until
-# * 2019. However, they do have attributes since 2015 or so. */
-# /* https://docs.microsoft.com/en-us/cpp/overview/visual-cpp-language-conformance */
-# define RBIMPL_HAS_CPP_ATTRIBUTE0(_) RBIMPL_TOKEN_PASTE(RBIMPL_HAS_CPP_ATTRIBUTE_, _)
-# define RBIMPL_HAS_CPP_ATTRIBUTE_noreturn 200809 * RBIMPL_COMPILER_SINCE(MSVC, 19, 00, 0)
-# define RBIMPL_HAS_CPP_ATTRIBUTE_carries_dependency 200809 * RBIMPL_COMPILER_SINCE(MSVC, 19, 00, 0)
-# define RBIMPL_HAS_CPP_ATTRIBUTE_deprecated 201309 * RBIMPL_COMPILER_SINCE(MSVC, 19, 10, 0)
-# define RBIMPL_HAS_CPP_ATTRIBUTE_fallthrough 201603 * RBIMPL_COMPILER_SINCE(MSVC, 19, 10, 0)
-# define RBIMPL_HAS_CPP_ATTRIBUTE_maybe_unused 201603 * RBIMPL_COMPILER_SINCE(MSVC, 19, 11, 0)
-# define RBIMPL_HAS_CPP_ATTRIBUTE_nodiscard 201603 * RBIMPL_COMPILER_SINCE(MSVC, 19, 11, 0)
-
-#elif RBIMPL_COMPILER_BEFORE(Clang, 3, 6, 0)
-# /* Clang 3.6.0 introduced __has_cpp_attribute. Prior to that following
-# * attributes were already there. */
-# /* https://clang.llvm.org/cxx_status.html */
-# define RBIMPL_HAS_CPP_ATTRIBUTE0(_) RBIMPL_TOKEN_PASTE(RBIMPL_HAS_CPP_ATTRIBUTE_, _)
-# define RBIMPL_HAS_CPP_ATTRIBUTE_noreturn 200809 * RBIMPL_COMPILER_SINCE(Clang, 3, 3, 0)
-# define RBIMPL_HAS_CPP_ATTRIBUTE_deprecated 201309 * RBIMPL_COMPILER_SINCE(Clang, 3, 4, 0)
-
-#elif RBIMPL_COMPILER_BEFORE(GCC, 5, 0, 0)
-# /* GCC 5+ have __has_cpp_attribute, while 4.x had following attributes. */
-# /* https://gcc.gnu.org/projects/cxx-status.html */
-# define RBIMPL_HAS_CPP_ATTRIBUTE0(_) RBIMPL_TOKEN_PASTE(RBIMPL_HAS_CPP_ATTRIBUTE_, _)
-# define RBIMPL_HAS_CPP_ATTRIBUTE_noreturn 200809 * RBIMPL_COMPILER_SINCE(GCC, 4, 8, 0)
-# define RBIMPL_HAS_CPP_ATTRIBUTE_deprecated 201309 * RBIMPL_COMPILER_SINCE(GCC, 4, 9, 0)
-
-#else
-# /* :FIXME:
-# * Candidate compilers to list here:
-# * - icpc: They have __INTEL_CXX11_MODE__.
-# * - SunPro: Seems they support C++11.
-# */
-# define RBIMPL_HAS_CPP_ATTRIBUTE0(_) 0
-#endif
-/** @endcond */
-
-/** Wraps (or simulates) `__has_cpp_attribute`. */
-#if ! defined(__cplusplus)
-# /* Makes no sense. */
-# define RBIMPL_HAS_CPP_ATTRIBUTE(_) 0
-#else
-# /* GCC needs workarounds. See https://gcc.godbolt.org/z/jdz3pa */
-# define RBIMPL_HAS_CPP_ATTRIBUTE(_) \
- ((RBIMPL_HAS_CPP_ATTRIBUTE0(_) <= __cplusplus) ? RBIMPL_HAS_CPP_ATTRIBUTE0(_) : 0)
-#endif
-
-#endif /* RBIMPL_HAS_CPP_ATTRIBUTE_H */