1 files changed, 9 insertions, 8 deletions
diff --git a/library/std/src/sys_common/wtf8.rs b/library/std/src/sys_common/wtf8.rs
index ff96c35fb..c9d3e13cf 100644
--- a/library/std/src/sys_common/wtf8.rs
+++ b/library/std/src/sys_common/wtf8.rs
@@ -570,7 +570,7 @@ impl Wtf8 {
     /// Since the byte slice is not checked for valid WTF-8, this functions is
     /// marked unsafe.
     #[inline]
-    unsafe fn from_bytes_unchecked(value: &[u8]) -> &Wtf8 {
+    pub unsafe fn from_bytes_unchecked(value: &[u8]) -> &Wtf8 {
         mem::transmute(value)
     }
 
@@ -614,19 +614,20 @@ impl Wtf8 {
         Wtf8CodePoints { bytes: self.bytes.iter() }
     }
 
+    /// Access raw bytes of WTF-8 data
+    #[inline]
+    pub fn as_bytes(&self) -> &[u8] {
+        &self.bytes
+    }
+
     /// Tries to convert the string to UTF-8 and return a `&str` slice.
     ///
     /// Returns `None` if the string contains surrogates.
     ///
     /// This does not copy the data.
     #[inline]
-    pub fn as_str(&self) -> Option<&str> {
-        // Well-formed WTF-8 is also well-formed UTF-8
-        // if and only if it contains no surrogate.
-        match self.next_surrogate(0) {
-            None => Some(unsafe { str::from_utf8_unchecked(&self.bytes) }),
-            Some(_) => None,
-        }
+    pub fn as_str(&self) -> Result<&str, str::Utf8Error> {
+        str::from_utf8(&self.bytes)
     }
 
     /// Creates an owned `Wtf8Buf` from a borrowed `Wtf8`.