Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Remove redundant lifetime bound from impl Borrow for Cow #99578

Merged
merged 1 commit into from
Oct 24, 2022
Merged

Remove redundant lifetime bound from impl Borrow for Cow #99578

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
1 change: 0 additions & 1 deletion library/alloc/src/borrow.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,6 @@ use Cow::*;
impl<'a, B: ?Sized> Borrow<B> for Cow<'a, B>
Copy link
Member

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

If you want it to look the same as the AsRef impl, you can also remove the 'a lifetime:

Suggested change
impl<'a, B: ?Sized> Borrow<B> for Cow<'a, B>
impl<B: ?Sized> Borrow<B> for Cow<'_, B>

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

In terms of how the rendered documentation comes out, I actually prefer the way it looks with the explicit lifetime, since otherwise it still renders as invalid Rust code with the impl<'_> part.

where
B: ToOwned,
<B as ToOwned>::Owned: 'a,
{
fn borrow(&self) -> &B {
&**self
Expand Down