ref_hash0        3841 ext/date/date_core.c 		    if (!NIL_P(ref_hash0(RARRAY_AREF(a, j))))
ref_hash0        3877 ext/date/date_core.c 		if (!NIL_P(ref_hash0(e)))
ref_hash0        3894 ext/date/date_core.c 		if (!NIL_P(ref_hash0(e)))
ref_hash0        3918 ext/date/date_core.c 		if (!NIL_P(ref_hash0(e)))
ref_hash0        3935 ext/date/date_core.c 		if (!NIL_P(ref_hash0(e)))