unused_parens now fires on cast expression #110189
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r? @b-naber (rustbot has picked a reviewer for you, use r? to override) |
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b-naber
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(force-pushed to drop accidental changes in stdarch submodule) should it be fixed in this PR as well as other occurrences? |
@KisaragiEffective I'd suggest doing so if it isn't against the reviewer's descretion since that'll be the only way the CI passes and the compiler builds fully :) |
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submitted rust-lang/stdarch#1411, marking this as a draft until it is synced. |
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It's merged 🚀 |
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Can you please squash your commits? |
Sure! However, I'd like to rebase (and squash) after stdarch update is landed in order to reduce force-push, so I'll submit another PR first. |
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submitted #110285, this PR remains to be a draft. Once it has approved and merged, I will rebase and squash commit. |
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☔ The latest upstream changes (presumably #110458) made this pull request unmergeable. Please resolve the merge conflicts. |
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…Amanieu stdarch: update submodule We need [this commit](rust-lang/stdarch@cf3deea) introduced by [stdarch#1411](rust-lang/stdarch#1411) in order to merge rust-lang#110189.
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…anieu stdarch: update submodule We need [this commit](rust-lang/stdarch@cf3deea) introduced by [stdarch#1411](rust-lang/stdarch#1411) in order to merge rust-lang#110189. Note to myself: `git pull && git submodule update --remote library/stdarch`
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It looks like another PR to stdarch is needed. |
RalfJung
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Jun 19, 2023
| @@ -198,7 +198,7 @@ fn casts() { | |||
| assert_eq::<i32>(f32::INFINITY as i32, i32::MAX); | |||
| assert_eq::<i32>(f32::NEG_INFINITY as i32, i32::MIN); | |||
| assert_eq::<i32>(f32::NAN as i32, 0); | |||
| assert_eq::<i32>((-f32::NAN) as i32, 0); | |||
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I don't think we should lint against (-expr) as i32. Looking at -expr as i32 I have no idea whether the as or the - are executed first, and I might care about that (in particular when casting to an unsigned type). (The formatting indicates that - goes first but I don't know if that actually matches how this is parsed.)
Parentheses to disambiguate parsing precedence are a good thing, we should not steer people away from them.
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I agreed :)
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Thanks! The diff in the Miri test can hopefully be removed then. :)
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The job Click to see the possible cause of the failure (guessed by this bot) |
RalfJung
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Jun 20, 2023
| // cast is left-assoc | ||
| let _ = (true as u8) as u16; | ||
| //~^ WARN unnecessary parentheses around cast expression | ||
| // should not fire |
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Please add unary - to this block (and other unary operator as well?)
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Does your intention include *expr as Ty and &expr as Ty?
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☔ The latest upstream changes (presumably #113151) made this pull request unmergeable. Please resolve the merge conflicts. |
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@KisaragiEffective any updates on it? |
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Closing this as inactive. Feel free to reöpen this pr or create a new pr if you get the time to work on this. Thanks |
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close rust-lang/rust-clippy#10557.
close rust-lang/rust-clippy#10625.
@llogiq suggested submit PR to solve the issue.