From 099cca46d21a85fd8f2530021915067b66cf2e98 Mon Sep 17 00:00:00 2001
From: Martin Habovstiak <martin.habovstiak@gmail.com>
Date: Thu, 11 Aug 2022 16:49:26 +0200
Subject: [PATCH] `impl From<Infallible> for io::Error`

This implements the trivial conversion from (uninhabited) `Infallible`
error type.
---
 library/std/src/io/error.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/library/std/src/io/error.rs b/library/std/src/io/error.rs
index ff7fdcae16f53..514cfcd37ca2b 100644
--- a/library/std/src/io/error.rs
+++ b/library/std/src/io/error.rs
@@ -11,7 +11,7 @@ mod repr_unpacked;
 #[cfg(not(target_pointer_width = "64"))]
 use repr_unpacked::Repr;
 
-use crate::convert::From;
+use crate::convert::{From, Infallible};
 use crate::error;
 use crate::fmt;
 use crate::result;
@@ -465,6 +465,13 @@ impl From<ErrorKind> for Error {
     }
 }
 
+#[stable(feature = "io_error_from_infallible", since = "1.65.0")]
+impl From<Infallible> for Error {
+    fn from(infallible: Infallible) -> Error {
+        match infallible {}
+    }
+}
+
 impl Error {
     /// Creates a new I/O error from a known kind of error as well as an
     /// arbitrary error payload.