Auto merge of #35856 - phimuemue:master, r=brson

[rust.git] / src / liballoc / raw_vec.rs

diff --git a/src/liballoc/raw_vec.rs b/src/liballoc/raw_vec.rs
index 58c841151c0f0e1b4bf0b46d0db8196c215ffdd1..23542215fa890a7f4ddffb236a6cc714bc4a7ca2 100644 (file)
--- a/src/liballoc/raw_vec.rs
+++ b/src/liballoc/raw_vec.rs
@@ -17,7 +17,7 @@
 use core::ops::Drop;
 use core::cmp;
 
-/// A low-level utility for more ergonomically allocating, reallocating, and deallocating a
+/// A low-level utility for more ergonomically allocating, reallocating, and deallocating
 /// a buffer of memory on the heap without having to worry about all the corner cases
 /// involved. This type is excellent for building your own data structures like Vec and VecDeque.
 /// In particular:
@@ -44,7 +44,7 @@
 /// `shrink_to_fit`, and `from_box` will actually set RawVec's private capacity
 /// field. This allows zero-sized types to not be special-cased by consumers of
 /// this type.
-#[unsafe_no_drop_flag]
+#[cfg_attr(stage0, unsafe_no_drop_flag)]
 pub struct RawVec<T> {
     ptr: Unique<T>,
     cap: usize,
@@ -534,8 +534,8 @@ pub fn shrink_to_fit(&mut self, amount: usize) {
     /// Converts the entire buffer into `Box<[T]>`.
     ///
     /// While it is not *strictly* Undefined Behavior to call
-    /// this procedure while some of the RawVec is unintialized,
-    /// it cetainly makes it trivial to trigger it.
+    /// this procedure while some of the RawVec is uninitialized,
+    /// it certainly makes it trivial to trigger it.
     ///
     /// Note that this will correctly reconstitute any `cap` changes
     /// that may have been performed. (see description of type for details)
@@ -546,13 +546,6 @@ pub unsafe fn into_box(self) -> Box<[T]> {
         mem::forget(self);
         output
     }
-
-    /// This is a stupid name in the hopes that someone will find this in the
-    /// not too distant future and remove it with the rest of
-    /// #[unsafe_no_drop_flag]
-    pub fn unsafe_no_drop_flag_needs_drop(&self) -> bool {
-        self.cap != mem::POST_DROP_USIZE
-    }
 }
 
 impl<T> Drop for RawVec<T> {
@@ -560,7 +553,7 @@ impl<T> Drop for RawVec<T> {
     /// Frees the memory owned by the RawVec *without* trying to Drop its contents.
     fn drop(&mut self) {
         let elem_size = mem::size_of::<T>();
-        if elem_size != 0 && self.cap != 0 && self.unsafe_no_drop_flag_needs_drop() {
+        if elem_size != 0 && self.cap != 0 {
             let align = mem::align_of::<T>();
 
             let num_bytes = elem_size * self.cap;