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| author | Manish Goregaokar <manishsmail@gmail.com> | 2025-01-02 18:30:38 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-01-02 18:30:38 +0000 |
| commit | 631d9a2c5cb5136705c7003e3d7681457156addf (patch) | |
| tree | 2092ad567ca5ca6fd0aa18e70231c141467a98ea /compiler/rustc_codegen_gcc | |
| parent | 034f3d224ca797ecc7c92ece4d87c94df6afed02 (diff) | |
| parent | d67c00f7232b104817cd30f76ad7089a3be5a389 (diff) | |
| download | rust-631d9a2c5cb5136705c7003e3d7681457156addf.tar.gz rust-631d9a2c5cb5136705c7003e3d7681457156addf.zip | |
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`
Diffstat (limited to 'compiler/rustc_codegen_gcc')
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