New upstream version 1.44.1+dfsg1

[rustc.git] / src / libstd / sys_common / os_str_bytes.rs

diff --git a/src/libstd/sys_common/os_str_bytes.rs b/src/libstd/sys_common/os_str_bytes.rs
index eb8a881ec8881f522e75e852f785b0b2f982b291..984c032e2a388829d5f0c0b13d6cd35c9d380a90 100644 (file)
--- a/src/libstd/sys_common/os_str_bytes.rs
+++ b/src/libstd/sys_common/os_str_bytes.rs
@@ -104,10 +104,22 @@ impl Buf {
         self.inner.shrink_to(min_capacity)
     }
 
+    #[inline]
     pub fn as_slice(&self) -> &Slice {
+        // Safety: Slice just wraps [u8],
+        // and &*self.inner is &[u8], therefore
+        // transmuting &[u8] to &Slice is safe.
         unsafe { mem::transmute(&*self.inner) }
     }
 
+    #[inline]
+    pub fn as_mut_slice(&mut self) -> &mut Slice {
+        // Safety: Slice just wraps [u8],
+        // and &mut *self.inner is &mut [u8], therefore
+        // transmuting &mut [u8] to &mut Slice is safe.
+        unsafe { mem::transmute(&mut *self.inner) }
+    }
+
     pub fn into_string(self) -> Result<String, Buf> {
         String::from_utf8(self.inner).map_err(|p| Buf { inner: p.into_bytes() })
     }
@@ -161,6 +173,10 @@ impl Slice {
         Buf { inner: self.inner.to_vec() }
     }
 
+    pub fn clone_into(&self, buf: &mut Buf) {
+        self.inner.clone_into(&mut buf.inner)
+    }
+
     #[inline]
     pub fn into_box(&self) -> Box<Slice> {
         let boxed: Box<[u8]> = self.inner.into();
@@ -183,6 +199,36 @@ impl Slice {
         let rc: Rc<[u8]> = Rc::from(&self.inner);
         unsafe { Rc::from_raw(Rc::into_raw(rc) as *const Slice) }
     }
+
+    #[inline]
+    pub fn make_ascii_lowercase(&mut self) {
+        self.inner.make_ascii_lowercase()
+    }
+
+    #[inline]
+    pub fn make_ascii_uppercase(&mut self) {
+        self.inner.make_ascii_uppercase()
+    }
+
+    #[inline]
+    pub fn to_ascii_lowercase(&self) -> Buf {
+        Buf { inner: self.inner.to_ascii_lowercase() }
+    }
+
+    #[inline]
+    pub fn to_ascii_uppercase(&self) -> Buf {
+        Buf { inner: self.inner.to_ascii_uppercase() }
+    }
+
+    #[inline]
+    pub fn is_ascii(&self) -> bool {
+        self.inner.is_ascii()
+    }
+
+    #[inline]
+    pub fn eq_ignore_ascii_case(&self, other: &Self) -> bool {
+        self.inner.eq_ignore_ascii_case(&other.inner)
+    }
 }
 
 /// Platform-specific extensions to [`OsString`].