tests/ui/rest_pattern_accessible_field.rs

//@aux-build:proc_macros.rs
//@aux-build:non-exhaustive-struct.rs
#![warn(clippy::rest_pattern_accessible_field)]
#![warn(clippy::unneeded_wildcard_pattern)]

use non_exhaustive_struct::{NonExhaustiveStruct, NonExhaustiveStructNoPrivateFields};

struct S {
    a: u8,
    b: u8,
    c: u8,
}

#[derive(Default)]
#[non_exhaustive]
struct LocalNonExhaustive {
    field: i32,
}

enum E {
    A { a1: u8, a2: u8 },
    B { b1: u8, b2: u8 },
    C {},
}

mod m {
    #[derive(Default)]
    pub struct Sm {
        pub a: u8,
        pub(crate) b: u8,
        c: u8,
    }
}

fn main() {
    let s = S { a: 1, b: 2, c: 3 };

    let S { a, b, .. } = s;
    //~^ rest_pattern_accessible_field

    let S { c, .. } = s;
    //~^ rest_pattern_accessible_field

    let S { a, b, c, .. } = s;

    S { a: _, b: _, .. } = S { a: 1, b: 2, c: 3 };
    //~^ rest_pattern_accessible_field

    let e = E::A { a1: 1, a2: 2 };

    match e {
        E::A { a1, a2 } => (),
        E::B { .. } => (),
        //~^ rest_pattern_accessible_field
        E::C { .. } => (),
    }

    match e {
        E::A { a1: _, a2: _ } => (),
        E::B { b1: _, .. } => (),
        //~^ rest_pattern_accessible_field
        E::C {} => (),
    }

    proc_macros::external! {
        let s1 = S { a: 1, b: 2, c: 3 };
        let S { a, b, .. } = s1;
    }

    proc_macros::with_span! {
        span
        let s2 = S { a: 1, b: 2, c: 3 };
        let S { a, b, .. } = s2;
    }

    let ne = NonExhaustiveStruct::default();
    let NonExhaustiveStruct { field1: _, .. } = ne;
    //~^ rest_pattern_accessible_field

    let ne = NonExhaustiveStruct::default();
    let NonExhaustiveStruct {
        field1: _, field2: _, ..
    } = ne;

    let ne = NonExhaustiveStructNoPrivateFields::default();
    let NonExhaustiveStructNoPrivateFields { .. } = ne;
    //~^ rest_pattern_accessible_field

    let ne = NonExhaustiveStructNoPrivateFields::default();
    let NonExhaustiveStructNoPrivateFields { field: _, .. } = ne;

    let ne = LocalNonExhaustive::default();
    let LocalNonExhaustive { field: _ } = ne;

    let ne = LocalNonExhaustive::default();
    let LocalNonExhaustive { field: _, .. } = ne;

    let ne = LocalNonExhaustive::default();
    let LocalNonExhaustive { .. } = ne;
    //~^ rest_pattern_accessible_field

    use m::Sm;

    let Sm { .. } = Sm::default();
    //~^ rest_pattern_accessible_field

    let Sm { a: _, b: _, .. } = Sm::default();
}