81f5969704
This fixes an incorrect suggestion from the `useless_attribute` lint when using `cfg_attr`. Additionally, it will not show a suggestion anymore, if the attribute begins on a previous line, because it is much harder to construct the span of multi-line `cfg_attr` attributes as they don't appear in the AST. To fix it completely, one would have to parse upwards into the file, and find the beginning of the `cfg_attr` attribute.
16 lines
698 B
Text
16 lines
698 B
Text
error: useless lint attribute
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--> $DIR/useless_attribute.rs:5:1
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5 | #[allow(dead_code, unused_extern_crates)]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if you just forgot a `!`, use: `#![allow(dead_code, unused_extern_crates)]`
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= note: `-D useless-attribute` implied by `-D warnings`
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error: useless lint attribute
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--> $DIR/useless_attribute.rs:6:1
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6 | #[cfg_attr(feature = "cargo-clippy", allow(dead_code, unused_extern_crates))]
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| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if you just forgot a `!`, use: `#![cfg_attr(feature = "cargo-clippy", allow(dead_code, unused_extern_crates))`
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error: aborting due to 2 previous errors
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