rust/clippy_lints
Manish Goregaokar 631d9a2c5c
Add lint for calling Iterator::last() on DoubleEndedIterator (#13922)
I [recently realized that `.last()` might not call `next_back()` when it
is
available](https://qsantos.fr/2025/01/01/rust-gotcha-last-on-doubleendediterator/).
Although the implementor could make sure to implement `last()` to do so,
this is not what will happen by default. As a result, I think it is
useful to add a lint to promote using `.next_back()` over `.last()` on
`DoubleEndedIterator`.

If this is merged, we might want to close #1822.

changelog: [`double_ended_iterator_last`]: Add lint for calling
`Iterator::last()` on `DoubleEndedIterator`
2025-01-02 18:30:38 +00:00
..
src Add lint for calling Iterator::last() on DoubleEndedIterator (#13922) 2025-01-02 18:30:38 +00:00
Cargo.toml Merge commit 'ff4a26d442' into clippy-subtree-update 2024-11-28 19:38:59 +01:00
README.md clippy_lints: readme: don't mention crates.io since it is no longer used to publish clippy. 2020-03-10 01:05:54 +01:00

This crate contains Clippy lints. For the main crate, check GitHub.