From 709ea7469f5093fb488607fcb966445c63d49a7a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?A=C3=AFssata?= <aimaiga2@gmail.com>
Date: Mon, 11 Jul 2022 13:12:41 +0000
Subject: [PATCH 1/3] Add Read Impl for &Stdin

---
 library/std/src/io/stdio.rs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/library/std/src/io/stdio.rs b/library/std/src/io/stdio.rs
index 261b570dee74f..e929eaa639696 100644
--- a/library/std/src/io/stdio.rs
+++ b/library/std/src/io/stdio.rs
@@ -445,6 +445,29 @@ impl Read for Stdin {
     }
 }
 
+#[stable(feature = "rust1", since = "1.0.0")]
+impl Read for &Stdin {
+    fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
+        self.lock().read(buf)
+    }
+    fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
+        self.lock().read_vectored(bufs)
+    }
+    #[inline]
+    fn is_read_vectored(&self) -> bool {
+        self.lock().is_read_vectored()
+    }
+    fn read_to_end(&mut self, buf: &mut Vec<u8>) -> io::Result<usize> {
+        self.lock().read_to_end(buf)
+    }
+    fn read_to_string(&mut self, buf: &mut String) -> io::Result<usize> {
+        self.lock().read_to_string(buf)
+    }
+    fn read_exact(&mut self, buf: &mut [u8]) -> io::Result<()> {
+        self.lock().read_exact(buf)
+    }
+}
+
 // only used by platform-dependent io::copy specializations, i.e. unused on some platforms
 #[cfg(any(target_os = "linux", target_os = "android"))]
 impl StdinLock<'_> {

From b921a34f1738a615c17db513868b6c5219f32893 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Sun, 25 Feb 2024 23:47:10 -0800
Subject: [PATCH 2/3] Fix stable feature name and stabilization version of Read
 for &Stdin

---
 library/std/src/io/stdio.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/library/std/src/io/stdio.rs b/library/std/src/io/stdio.rs
index e929eaa639696..6920281f24bf2 100644
--- a/library/std/src/io/stdio.rs
+++ b/library/std/src/io/stdio.rs
@@ -445,7 +445,7 @@ impl Read for Stdin {
     }
 }
 
-#[stable(feature = "rust1", since = "1.0.0")]
+#[stable(feature = "read_shared_stdin", since = "CURRENT_RUSTC_VERSION")]
 impl Read for &Stdin {
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
         self.lock().read(buf)

From b18280f9d5d07ff1a1b5352924c383c1ed3024e9 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Sun, 25 Feb 2024 23:50:00 -0800
Subject: [PATCH 3/3] Fill in Read::read_buf for &Stdin

---
 library/std/src/io/stdio.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/library/std/src/io/stdio.rs b/library/std/src/io/stdio.rs
index 6920281f24bf2..19ed03056a2f9 100644
--- a/library/std/src/io/stdio.rs
+++ b/library/std/src/io/stdio.rs
@@ -450,6 +450,9 @@ impl Read for &Stdin {
     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
         self.lock().read(buf)
     }
+    fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> io::Result<()> {
+        self.lock().read_buf(buf)
+    }
     fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
         self.lock().read_vectored(bufs)
     }