From 62bb0bc823d7d792b98b5c163b8db4deaa9ffc65 Mon Sep 17 00:00:00 2001
From: ksss <co000ri@gmail.com>
Date: Thu, 27 Oct 2022 21:28:56 +0900
Subject: [PATCH] Add missing error class of IO::Buffer

---
 core/io/buffer.rbs | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/core/io/buffer.rbs b/core/io/buffer.rbs
index 4867b6e28..2e229420e 100644
--- a/core/io/buffer.rbs
+++ b/core/io/buffer.rbs
@@ -706,5 +706,20 @@ class IO
     PRIVATE: Integer
 
     READONLY: Integer
+
+    class LockedError < RuntimeError
+    end
+
+    class AllocationError < RuntimeError
+    end
+
+    class AccessError < RuntimeError
+    end
+
+    class InvalidatedError < RuntimeError
+    end
+
+    class MaskError < ArgumentError
+    end
   end
 end