Merge pull request #2991 from shyouhei/ruby.h

Split ruby.h

1 files changed, 48 insertions, 0 deletions

diff --git a/include/ruby/3/has/declspec_attribute.h b/include/ruby/3/has/declspec_attribute.h
new file mode 100644
index 0000000000..f902ef963c
--- /dev/null
+++ b/include/ruby/3/has/declspec_attribute.h
@@ -0,0 +1,48 @@
+/**                                                     \noop-*-C++-*-vi:ft=cpp
+ * @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  `RUBY3`   or   `ruby3`   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 #RUBY3_HAS_DECLSPEC_ATTRIBUTE.
+ */
+#include "ruby/3/compiler_since.h"
+#include "ruby/3/token_paste.h"
+
+/** Wraps (or simulates) `__has_declspec_attribute`. */
+#if defined(RUBY3_HAS_DECLSPEC_ATTRIBUTE)
+# /* Take that. */
+
+#elif defined(__has_declspec_attribute)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE(_) __has_declspec_attribute(_)
+
+#else
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE(_) RUBY3_TOKEN_PASTE(RUBY3_HAS_DECLSPEC_ATTRIBUTE_, _)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_align       RUBY3_COMPILER_SINCE(MSVC, 8, 0, 0)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_deprecated  RUBY3_COMPILER_SINCE(MSVC,13, 0, 0)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_dllexport   RUBY3_COMPILER_SINCE(MSVC, 8, 0, 0)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_dllimport   RUBY3_COMPILER_SINCE(MSVC, 8, 0, 0)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_empty_bases RUBY3_COMPILER_SINCE(MSVC,19, 0, 23918)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_noalias     RUBY3_COMPILER_SINCE(MSVC, 8, 0, 0)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_noinline    RUBY3_COMPILER_SINCE(MSVC,13, 0, 0)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_noreturn    RUBY3_COMPILER_SINCE(MSVC,11, 0, 0)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_nothrow     RUBY3_COMPILER_SINCE(MSVC, 8, 0, 0)
+# define RUBY3_HAS_DECLSPEC_ATTRIBUTE_restrict    RUBY3_COMPILER_SINCE(MSVC,14, 0, 0)
+# /* Note that "8, 0, 0" might be inaccurate. */
+# if ! defined(__cplusplus)
+#  /* Clang has this in both C/C++, but MSVC has this in C++ only.*/
+#  undef RUBY3_HAS_DECLSPEC_ATTRIBUTE_nothrow
+# endif
+#endif