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rust/common/uninit: Fix Clippy's complaints about lifetime

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Clippy complains about the following cases and following its suggestion
to fix these warnings.

warning: the following explicit lifetimes could be elided: 'a
  --> common/src/uninit.rs:38:6
   |
38 | impl<'a, T, U> Deref for MaybeUninitField<'a, T, U> {
   |      ^^                                   ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
   = note: `#[warn(clippy::needless_lifetimes)]` on by default
help: elide the lifetimes
   |
38 - impl<'a, T, U> Deref for MaybeUninitField<'a, T, U> {
38 + impl<T, U> Deref for MaybeUninitField<'_, T, U> {
   |

warning: the following explicit lifetimes could be elided: 'a
  --> common/src/uninit.rs:49:6
   |
49 | impl<'a, T, U> DerefMut for MaybeUninitField<'a, T, U> {
   |      ^^                                      ^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#needless_lifetimes
help: elide the lifetimes
   |
49 - impl<'a, T, U> DerefMut for MaybeUninitField<'a, T, U> {
49 + impl<T, U> DerefMut for MaybeUninitField<'_, T, U> {
   |

warning: `common` (lib) generated 2 warnings (run `cargo clippy --fix --lib -p common` to apply 2 suggestions)

Reviewed-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20250920160520.3699591-5-zhao1.liu@intel.com
This commit is contained in:
Zhao Liu
2025-09-21 00:05:12 +08:00
committed by Paolo Bonzini
parent 1bbac0ca88
commit 35d7735f76
1 changed files with 2 additions and 2 deletions
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rust/common/src/uninit.rs
+2 -2
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@@ -35,7 +35,7 @@ impl<'a, T, U> MaybeUninitField<'a, T, U> {
}
}
impl<'a, T, U> Deref for MaybeUninitField<'a, T, U> {
impl<T, U> Deref for MaybeUninitField<'_, T, U> {
type Target = MaybeUninit<U>;
fn deref(&self) -> &MaybeUninit<U> {
@@ -46,7 +46,7 @@ impl<'a, T, U> Deref for MaybeUninitField<'a, T, U> {
}
}
impl<'a, T, U> DerefMut for MaybeUninitField<'a, T, U> {
impl<T, U> DerefMut for MaybeUninitField<'_, T, U> {
fn deref_mut(&mut self) -> &mut MaybeUninit<U> {
// SAFETY: self.child was obtained by dereferencing a valid mutable
// reference; the content of the memory may be invalid or uninitialized