From 780342eddb880a1c0a457311b005398ce36d0c9f Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Wed, 15 May 2019 14:59:48 +0900
Subject: Add Enumerator support to `String#each_byte`.

`String#each_byte` is not defined in ISO Ruby but it is implemented in
the core mruby because it's useful.
---
 mrblib/string.rb | 1 +
 1 file changed, 1 insertion(+)

(limited to 'mrblib')

diff --git a/mrblib/string.rb b/mrblib/string.rb
index 42d594055..b0fe4033e 100644
--- a/mrblib/string.rb
+++ b/mrblib/string.rb
@@ -167,6 +167,7 @@ class String
   ##
   # Call the given block for each byte of +self+.
   def each_byte(&block)
+    return to_enum(:each_byte, &block) unless block
     bytes = self.bytes
     pos = 0
     while pos < bytes.size
-- 
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