From 17fef63dbcbfa8ba4af24204f881e37fdddf5626 Mon Sep 17 00:00:00 2001
From: Jun Wu <quark@fb.com>
Date: Wed, 13 Oct 2021 13:25:05 -0700
Subject: [PATCH] io: make with_input provide mut Read

Summary: Without `mut`, the `Read` cannot actually read anything.

Reviewed By: yancouto

Differential Revision: D31465817

fbshipit-source-id: b069499ff0e8a371f0e27402baedfb25414e29a1
---
 eden/scm/lib/io/src/lib.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/eden/scm/lib/io/src/lib.rs b/eden/scm/lib/io/src/lib.rs
index 1de6fde4ae..ffccb33ec8 100644
--- a/eden/scm/lib/io/src/lib.rs
+++ b/eden/scm/lib/io/src/lib.rs
@@ -197,8 +197,8 @@ impl IOProgress {
 }
 
 impl IO {
-    pub fn with_input<R>(&self, f: impl FnOnce(&dyn Read) -> R) -> R {
-        f(self.inner.lock().input.as_ref())
+    pub fn with_input<R>(&self, f: impl FnOnce(&mut dyn Read) -> R) -> R {
+        f(self.inner.lock().input.as_mut())
     }
 
     pub fn with_output<R>(&self, f: impl FnOnce(&dyn Write) -> R) -> R {