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Better suggestion for panic!(format!(..)) #82110

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m-ou-se opened this issue Feb 14, 2021 · 0 comments · Fixed by #82113
Closed

Better suggestion for panic!(format!(..)) #82110

m-ou-se opened this issue Feb 14, 2021 · 0 comments · Fixed by #82113
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A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix`. D-confusing Diagnostics: Confusing error or lint that should be reworked.

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m-ou-se commented Feb 14, 2021

The non_fmt_panic lint should have a special case for panic!(format!(..)) to suggest panic!(..) by removing format( and ).
@m-ou-se m-ou-se added A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix`. D-confusing Diagnostics: Confusing error or lint that should be reworked. labels Feb 14, 2021
@m-ou-se m-ou-se self-assigned this Feb 14, 2021
HeroicKatora added a commit to HeroicKatora/image that referenced this issue Feb 14, 2021
@HeroicKatora
Fix forward compatibility of panicking
fa9f629 
The panic macro will change in edition2021 such that it is consistent
between core and std. Currently, only one permits a single formattable
value as the only argument. Instead, it will work more like write and
format itself. This also means that format itself is unnecessary.

Fixed like it should be suggested for: rust-lang/rust#82110
@HeroicKatora HeroicKatora mentioned this issue Feb 14, 2021
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@m-ou-se m-ou-se mentioned this issue Feb 14, 2021
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@bors bors closed this as completed in 547b3ad Feb 23, 2021
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A-suggestion-diagnostics Area: Suggestions generated by the compiler applied by `cargo fix`. D-confusing Diagnostics: Confusing error or lint that should be reworked.
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Improve non_fmt_panic lint. m-ou-se/rust
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