From bdfdc71d0f56a592fd888fcd89e6e9c6188b156c Mon Sep 17 00:00:00 2001
From: Mike Hommey <mh@glandium.org>
Date: Wed, 29 Apr 2020 18:13:52 +0900
Subject: [PATCH] Implement FromStr for OsString

---
 src/libstd/ffi/os_str.rs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/libstd/ffi/os_str.rs b/src/libstd/ffi/os_str.rs
index 4fde3316973..7a05aaf71f2 100644
--- a/src/libstd/ffi/os_str.rs
+++ b/src/libstd/ffi/os_str.rs
@@ -4,6 +4,7 @@ use crate::fmt;
 use crate::hash::{Hash, Hasher};
 use crate::ops;
 use crate::rc::Rc;
+use crate::str::FromStr;
 use crate::sync::Arc;
 
 use crate::sys::os_str::{Buf, Slice};
@@ -1174,6 +1175,15 @@ impl AsInner<Slice> for OsStr {
     }
 }
 
+#[stable(feature = "osstring_from_str", since = "1.45.0")]
+impl FromStr for OsString {
+    type Err = core::convert::Infallible;
+
+    fn from_str(s: &str) -> Result<Self, Self::Err> {
+        Ok(OsString::from(s))
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;