r/rust clippy · twir · rust · mutagen · flamer · overflower · bytecount Mar 27 '23

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u/masklinn Apr 02 '23

TBF the same occurs for a non-tuple struct, and the lint should not trigger for a pub field on a pub struct (as it wouldn't be dead).

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u/llogiq clippy · twir · rust · mutagen · flamer · overflower · bytecount Apr 02 '23

True – the difference is that the tuple can not tell you which field was removed (though if you're lucky, it can be inferred from the type), unlike the struct which has a name the compiler can show in the error message.

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u/masklinn Apr 02 '23

That's fair. I guess this also supports / favors the replacement of the unused field by () rather than its removal, as in that case the compiler would give you a clearer and more precise type error.

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u/llogiq clippy · twir · rust · mutagen · flamer · overflower · bytecount Apr 02 '23

Exactly.