From af04418a0519d45af1bc41667bffc0c2fce2cef4 Mon Sep 17 00:00:00 2001
From: Jubilee Young <workingjubilee@gmail.com>
Date: Tue, 11 Jun 2024 22:55:55 -0700
Subject: Make PathBuf less Ok with adding UTF-16 then `into_string`

---
 library/std/src/sys_common/wtf8.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'library/std/src')

diff --git a/library/std/src/sys_common/wtf8.rs b/library/std/src/sys_common/wtf8.rs
index bb1e505285b..84128a4b595 100644
--- a/library/std/src/sys_common/wtf8.rs
+++ b/library/std/src/sys_common/wtf8.rs
@@ -477,6 +477,9 @@ impl Wtf8Buf {
     /// Part of a hack to make PathBuf::push/pop more efficient.
     #[inline]
     pub(crate) fn as_mut_vec_for_path_buf(&mut self) -> &mut Vec<u8> {
+        // FIXME: this function should not even exist, as it implies violating Wtf8Buf invariants
+        // For now, simply assume that is about to happen.
+        self.is_known_utf8 = false;
         &mut self.bytes
     }
 }
-- 
cgit 1.4.1-3-g733a5