diff options
| -rw-r--r-- | library/core/src/io/borrowed_buf.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/library/core/src/io/borrowed_buf.rs b/library/core/src/io/borrowed_buf.rs index dbc60aa8154..4227e503ba7 100644 --- a/library/core/src/io/borrowed_buf.rs +++ b/library/core/src/io/borrowed_buf.rs @@ -108,6 +108,26 @@ impl<'data> BorrowedBuf<'data> { } } + /// Returns a shared reference to the filled portion of the buffer with its original lifetime. + #[inline] + pub fn into_filled(self) -> &'data [u8] { + // SAFETY: We only slice the filled part of the buffer, which is always valid + unsafe { + let buf = self.buf.get_unchecked(..self.filled); + MaybeUninit::slice_assume_init_ref(buf) + } + } + + /// Returns a mutable reference to the filled portion of the buffer with its original lifetime. + #[inline] + pub fn into_filled_mut(self) -> &'data mut [u8] { + // SAFETY: We only slice the filled part of the buffer, which is always valid + unsafe { + let buf = self.buf.get_unchecked_mut(..self.filled); + MaybeUninit::slice_assume_init_mut(buf) + } + } + /// Returns a cursor over the unfilled part of the buffer. #[inline] pub fn unfilled<'this>(&'this mut self) -> BorrowedCursor<'this> { |