Edition 2024: if_let_rescope triggering on types that do not have significant drop? | Rust Programming Language Community | Page 1

jagged dew Feb 22, 2025, 12:25 PM

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Why is this playground triggering if_let_rescope? &SigDrop definitely doesn't have significant drop?? Am I just missing something dumb here?

Rust Playground

A browser interface to the Rust compiler to experiment with the language

hybrid wraith Feb 22, 2025, 12:29 PM

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A similar issue has been reported at https://github.com/rust-lang/rust/issues/137411

GitHub

False postive for `if-let-rescope` on `hashbrown::HashMap::get`? · ...

hashbrown::HashMap::get returns a reference which has no significant drop. I've see this on other methods like hashbrown::HashMap::get_mut, the equivalent methods on std::collections::HashMap d...

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Maybe you should put your code as a comment there?

jagged dew Feb 22, 2025, 12:29 PM

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Yeah, with that I can reduce my code a little more

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https://github.com/rust-lang/rust/issues/137411#issuecomment-2676180656

GitHub

False postive for `if-let-rescope` on `hashbrown::HashMap::get`? · ...

hashbrown::HashMap::get returns a reference which has no significant drop. I've see this on other methods like hashbrown::HashMap::get_mut, the equivalent methods on std::collections::HashMap d...

hybrid wraith Feb 22, 2025, 12:40 PM

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That's a yikes lol ferrisballSweat

real jasper Feb 22, 2025, 3:05 PM

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Ahh, it's doing that for a reference huh. That's a bad false positive

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ferrisBehehe

#Edition 2024: if_let_rescope triggering on types that do not have significant drop?