rust-lang#126333 literal removal of PathBuf::as_mut_vec

Author: Borgerr

library/std/src/ffi/os_str.rs

@@ -551,12 +551,6 @@ impl OsString {
     pub fn leak<'a>(self) -> &'a mut OsStr {
         OsStr::from_inner_mut(self.inner.leak())
     }
-
-    /// 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> {
-        self.inner.as_mut_vec_for_path_buf()
-    }
 }
 
 #[stable(feature = "rust1", since = "1.0.0")]

library/std/src/path.rs

@@ -655,7 +655,11 @@ impl<'a> Components<'a> {
     /// how much of the prefix is left from the point of view of iteration?
     #[inline]
     fn prefix_remaining(&self) -> usize {
-        if self.front == State::Prefix { self.prefix_len() } else { 0 }
+        if self.front == State::Prefix {
+            self.prefix_len()
+        } else {
+            0
+        }
     }
 
     // Given the iteration so far, how much of the pre-State::Body path is left?
@@ -674,7 +678,11 @@ impl<'a> Components<'a> {
 
     #[inline]
     fn is_sep_byte(&self, b: u8) -> bool {
-        if self.prefix_verbatim() { is_verbatim_sep(b) } else { is_sep_byte(b) }
+        if self.prefix_verbatim() {
+            is_verbatim_sep(b)
+        } else {
+            is_sep_byte(b)
+        }
     }
 
     /// Extracts a slice corresponding to the portion of the path remaining for iteration.
@@ -1163,11 +1171,6 @@ pub struct PathBuf {
 }
 
 impl PathBuf {
-    #[inline]
-    fn as_mut_vec(&mut self) -> &mut Vec<u8> {
-        self.inner.as_mut_vec_for_path_buf()
-    }
-
     /// Allocates an empty `PathBuf`.
     ///
     /// # Examples

library/std/src/sys/os_str/bytes.rs

@@ -201,12 +201,6 @@ impl Buf {
     pub fn into_rc(&self) -> Rc<Slice> {
         self.as_slice().into_rc()
     }
-
-    /// 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> {
-        &mut self.inner
-    }
 }
 
 impl Slice {

library/std/src/sys/os_str/wtf8.rs

@@ -164,12 +164,6 @@ impl Buf {
     pub fn into_rc(&self) -> Rc<Slice> {
         self.as_slice().into_rc()
     }
-
-    /// 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> {
-        self.inner.as_mut_vec_for_path_buf()
-    }
 }
 
 impl Slice {

library/std/src/sys_common/wtf8.rs

@@ -473,15 +473,6 @@ impl Wtf8Buf {
         let bytes: Box<[u8]> = unsafe { mem::transmute(boxed) };
         Wtf8Buf { bytes: bytes.into_vec(), is_known_utf8: false }
     }
-
-    /// 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
-    }
 }
 
 /// Creates a new WTF-8 string from an iterator of code points.