range.c: endless symbol range

* range.c (range_each): shortcirtuit endless symbol range too, as
  well as `#step`.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63297 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 2 deletions

diff --git a/range.c b/range.c
index 7f59a97725..4f45b24f0f 100644
--- a/range.c
+++ b/range.c
@@ -813,9 +813,14 @@ range_each(VALUE range)
 	    rb_yield(LONG2FIX(i));
 	}
     }
-    else if (SYMBOL_P(beg) && SYMBOL_P(end)) { /* symbols are special */
+    else if (SYMBOL_P(beg) && (NIL_P(end) || SYMBOL_P(end))) { /* symbols are special */
 	beg = rb_sym2str(beg);
-	rb_str_upto_each(beg, rb_sym2str(end), EXCL(range), sym_each_i, 0);
+	if (NIL_P(end)) {
+	    rb_str_upto_endless_each(beg, sym_each_i, 0);
+	}
+	else {
+	    rb_str_upto_each(beg, rb_sym2str(end), EXCL(range), sym_each_i, 0);
+	}
     }
     else {
 	VALUE tmp = rb_check_string_type(beg);