Merge pull request #2991 from shyouhei/ruby.h

Split ruby.h

1 files changed, 27 insertions, 0 deletions

diff --git a/include/ruby/backward/2/r_cast.h b/include/ruby/backward/2/r_cast.h
new file mode 100644
index 0000000000..ed529c8968
--- /dev/null
+++ b/include/ruby/backward/2/r_cast.h
@@ -0,0 +1,27 @@
+/**                                                     \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 old #R_CAST
+ *
+ * Nobody is actively using this macro.
+ */
+#ifndef RUBY_BACKWARD2_R_CAST_H
+#define RUBY_BACKWARD2_R_CAST_H
+#define R_CAST(st)   (struct st*)
+#define RMOVED(obj)  (R_CAST(RMoved)(obj))
+#endif /* RUBY_BACKWARD2_R_CAST_H */