From cae9a028a29594d77091ca3efaaddf82049d590c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Johannes=20M=C3=BCller?= <straightshoota@gmail.com>
Date: Thu, 8 Jul 2021 12:01:40 +0200
Subject: [PATCH] Add type restriction to Iterator#each

---
 src/iterator.cr | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/iterator.cr b/src/iterator.cr
index 45686cf8d112..179e5aac0493 100644
--- a/src/iterator.cr
+++ b/src/iterator.cr
@@ -590,7 +590,7 @@ module Iterator(T)
   # iter = ["a", "b", "c"].each
   # iter.each { |x| print x, " " } # Prints "a b c"
   # ```
-  def each : Nil
+  def each(& : T -> _) : Nil
     while true
       value = self.next
       break if value.is_a?(Stop)