1 files changed, 105 insertions, 0 deletions
diff --git a/internal.h b/internal.h
new file mode 100644
index 0000000000..002044cfa1
--- /dev/null
+++ b/internal.h
@@ -0,0 +1,105 @@
+#ifndef RUBY_INTERNAL_H                                  /*-*-C-*-vi:se ft=c:*/
+#define RUBY_INTERNAL_H 1
+/**
+ * @author     $Author$
+ * @date       Tue May 17 11:42:20 JST 2011
+ * @copyright  Copyright (C) 2011 Yukihiro Matsumoto
+ * @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.
+ */
+#include "ruby/internal/config.h"
+
+#ifdef __cplusplus
+# error not for C++
+#endif
+
+#define LIKELY(x) RB_LIKELY(x)
+#define UNLIKELY(x) RB_UNLIKELY(x)
+
+#define numberof(array) ((int)(sizeof(array) / sizeof((array)[0])))
+#define roomof(x, y) (((x) + (y) - 1) / (y))
+#define type_roomof(x, y) roomof(sizeof(x), sizeof(y))
+
+/* Prevent compiler from reordering access */
+#define ACCESS_ONCE(type,x) (*((volatile type *)&(x)))
+
+#define UNDEF_P         RB_UNDEF_P
+#define NIL_OR_UNDEF_P  RB_NIL_OR_UNDEF_P
+
+#include "ruby/ruby.h"
+
+/* Following macros were formerly defined in this header but moved to somewhere
+ * else.  In order to detect them we undef here. */
+
+/* internal/array.h */
+#undef RARRAY_AREF
+
+/* internal/class.h */
+#undef RClass
+#undef RCLASS_SUPER
+
+/* internal/hash.h */
+#undef RHASH_IFNONE
+#undef RHASH_SIZE
+#undef RHASH_TBL
+#undef RHASH_EMPTY_P
+
+/* internal/struct.h */
+#undef RSTRUCT_LEN
+#undef RSTRUCT_PTR
+#undef RSTRUCT_SET
+#undef RSTRUCT_GET
+
+/* Also,  we  keep  the  following  macros  here.   They  are  expected  to  be
+ * overridden in each headers. */
+
+/* internal/array.h */
+#define rb_ary_new_from_args(...) rb_nonexistent_symbol(__VA_ARGS__)
+
+/* internal/string.h */
+#define rb_fstring_cstr(...) rb_nonexistent_symbol(__VA_ARGS__)
+
+/* internal/symbol.h */
+#define rb_sym_intern_ascii_cstr(...) rb_nonexistent_symbol(__VA_ARGS__)
+
+/* internal/vm.h */
+#define rb_funcallv(...) rb_nonexistent_symbol(__VA_ARGS__)
+#define rb_method_basic_definition_p(...) rb_nonexistent_symbol(__VA_ARGS__)
+
+
+/* MRI debug support */
+
+/* gc.c */
+void rb_obj_info_dump(VALUE obj);
+void rb_obj_info_dump_loc(VALUE obj, const char *file, int line, const char *func);
+
+/* debug.c */
+
+RUBY_SYMBOL_EXPORT_BEGIN
+void ruby_debug_breakpoint(void);
+PRINTF_ARGS(void ruby_debug_printf(const char*, ...), 1, 2);
+RUBY_SYMBOL_EXPORT_END
+
+// show obj data structure without any side-effect
+#define rp(obj) rb_obj_info_dump_loc((VALUE)(obj), __FILE__, __LINE__, RUBY_FUNCTION_NAME_STRING)
+
+// same as rp, but add message header
+#define rp_m(msg, obj) do { \
+    fputs((msg), stderr); \
+    rb_obj_info_dump((VALUE)(obj)); \
+} while (0)
+
+// `ruby_debug_breakpoint()` does nothing,
+// but breakpoint is set in run.gdb, so `make gdb` can stop here.
+#define bp() ruby_debug_breakpoint()
+
+#define RBOOL(v) ((v) ? Qtrue : Qfalse)
+#define RB_BIGNUM_TYPE_P(x) RB_TYPE_P((x), T_BIGNUM)
+
+#ifndef __MINGW32__
+#undef memcpy
+#define memcpy ruby_nonempty_memcpy
+#endif
+#endif /* RUBY_INTERNAL_H */