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| author | Daniel Henry-Mantilla <daniel.henry.mantilla@gmail.com> | 2020-11-04 14:54:22 +0100 |
|---|---|---|
| committer | Daniel Henry-Mantilla <daniel.henry.mantilla@gmail.com> | 2020-11-04 14:54:22 +0100 |
| commit | 69e5729c58481e1a2ce4e4a5982d38deab1fc6b2 (patch) | |
| tree | 72cbbeb4d21e07058e3e339418409d8dabdb5357 | |
| parent | 56293097f7f877f1350a6cd00f79d03132f16515 (diff) | |
| download | rust-69e5729c58481e1a2ce4e4a5982d38deab1fc6b2.tar.gz rust-69e5729c58481e1a2ce4e4a5982d38deab1fc6b2.zip | |
Simplify the implementation of `get_mut` (no unsafe)
| -rw-r--r-- | library/core/src/cell.rs | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/library/core/src/cell.rs b/library/core/src/cell.rs index 7140218fa91..ef2a5dd570f 100644 --- a/library/core/src/cell.rs +++ b/library/core/src/cell.rs @@ -1733,8 +1733,7 @@ impl<T: ?Sized> UnsafeCell<T> { #[inline] #[unstable(feature = "unsafe_cell_get_mut", issue = "76943")] pub fn get_mut(&mut self) -> &mut T { - // SAFETY: (outer) `&mut` guarantees unique access. - unsafe { &mut *self.get() } + &mut self.value } /// Gets a mutable pointer to the wrapped value. |