rust-lang/rustfmt

rustfmt eats attributes while formatting functions with variadic parameters

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#6,561 opened on 2025/05/11

 (4 件のコメント) (0 件のリアクション) (0 人の担当者)Rust (760 件のフォーク)batch import
C-buggood first issue

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説明

If you format...

#[allow()]
unsafe extern "C" {
    #[allow()]
    pub fn foo(#[allow()] arg: *mut u8, #[allow()]...);
}

Then it will format into

#[allow()]
unsafe extern "C" {
    #[allow()]
    pub fn foo(#[allow()] arg: *mut u8, ...);
}

(The choice of attribute seems irrelevant, I've used allow because it compiles in any position).

Note that this position is explicitly documented at https://doc.rust-lang.org/nightly/reference/attributes.html#r-attributes.allowed-position

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