set self.is_known_utf8 to false in extend_from_slice

Borgerr · Borgerr · commit 57c2de81f2b5 · 2024-06-25T23:58:43.000-06:00
diff --git a/std/src/sys_common/wtf8.rs b/std/src/sys_common/wtf8.rs
@@ -480,7 +480,7 @@ impl Wtf8Buf {
     #[inline]
     pub(crate) fn extend_from_slice(&mut self, other: &[u8]) {
         self.bytes.extend_from_slice(other);
-        self.is_known_utf8 = self.is_known_utf8 || self.next_surrogate(0).is_none();
+        self.is_known_utf8 = false;
     }
 }
 

Original file line number	Diff line number	Diff line change
`@@ -480,7 +480,7 @@ impl Wtf8Buf {`
`480`	`480`	`#[inline]`
`481`	`481`	`pub(crate) fn extend_from_slice(&mut self, other: &[u8]) {`
`482`	`482`	`self.bytes.extend_from_slice(other);`
`483`		`- self.is_known_utf8 = self.is_known_utf8 \|\| self.next_surrogate(0).is_none();`
	`483`	`+ self.is_known_utf8 = false;`
`484`	`484`	`}`
`485`	`485`	`}`
`486`	`486`