add new macro MRB_ARGS_ARG(n1,n2) to specify required and optional arugments at once

include/mruby.h

@@ -173,6 +173,9 @@ struct RClass * mrb_define_module_under(mrb_state *mrb, struct RClass *outer, co
 #define MRB_ARGS_REQ(n)     ((mrb_aspec)((n)&0x1f) << 19)
 /* optional arguments */
 #define MRB_ARGS_OPT(n)     ((mrb_aspec)((n)&0x1f) << 14)
+/* mandatory and optinal arguments */
+#define MRB_ARGS_ARG(n1,n2)   (MRB_ARGS_REQ(n1)|MRB_ARGS_OPT(n2))
+
 /* rest argument */
 #define MRB_ARGS_REST()     ((mrb_aspec)(1 << 13))
 /* required arguments after rest */

mrbgems/mruby-time/src/time.c

@@ -691,12 +691,12 @@ mrb_mruby_time_gem_init(mrb_state* mrb)
   tc = mrb_define_class(mrb, "Time", mrb->object_class);
   MRB_SET_INSTANCE_TT(tc, MRB_TT_DATA);
   mrb_include_module(mrb, tc, mrb_class_get(mrb, "Comparable"));
-  mrb_define_class_method(mrb, tc, "at", mrb_time_at, MRB_ARGS_ANY());                    /* 15.2.19.6.1 */
-  mrb_define_class_method(mrb, tc, "gm", mrb_time_gm, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(6));       /* 15.2.19.6.2 */
-  mrb_define_class_method(mrb, tc, "local", mrb_time_local, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(6)); /* 15.2.19.6.3 */
-  mrb_define_class_method(mrb, tc, "mktime", mrb_time_local, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(6));/* 15.2.19.6.4 */
-  mrb_define_class_method(mrb, tc, "now", mrb_time_now, MRB_ARGS_NONE());                 /* 15.2.19.6.5 */
-  mrb_define_class_method(mrb, tc, "utc", mrb_time_gm, MRB_ARGS_REQ(1)|MRB_ARGS_OPT(6));      /* 15.2.19.6.6 */
+  mrb_define_class_method(mrb, tc, "at", mrb_time_at, MRB_ARGS_ANY());          /* 15.2.19.6.1 */
+  mrb_define_class_method(mrb, tc, "gm", mrb_time_gm, MRB_ARGS_ARG(1,6));       /* 15.2.19.6.2 */
+  mrb_define_class_method(mrb, tc, "local", mrb_time_local, MRB_ARGS_ARG(1,6)); /* 15.2.19.6.3 */
+  mrb_define_class_method(mrb, tc, "mktime", mrb_time_local, MRB_ARGS_ARG(1,6));/* 15.2.19.6.4 */
+  mrb_define_class_method(mrb, tc, "now", mrb_time_now, MRB_ARGS_NONE());       /* 15.2.19.6.5 */
+  mrb_define_class_method(mrb, tc, "utc", mrb_time_gm, MRB_ARGS_ARG(1,6));      /* 15.2.19.6.6 */
 
   mrb_define_method(mrb, tc, "=="     , mrb_time_eq     , MRB_ARGS_REQ(1));
   mrb_define_method(mrb, tc, "<=>"    , mrb_time_cmp    , MRB_ARGS_REQ(1)); /* 15.2.19.7.1 */