//@ run-rustfix #![allow(unused)] // for rustfix #[derive(Clone, Copy)] struct S; trait T { fn foo((x, y): (i32, i32)); //~ ERROR patterns aren't allowed in methods without bodies fn bar((x, y): (i32, i32)) {} //~ ERROR patterns aren't allowed in methods without bodies fn method(S { .. }: S) {} //~ ERROR patterns aren't allowed in methods without bodies fn f(&ident: &S) {} // ok fn g(&&ident: &&S) {} // ok fn h(mut ident: S) {} // ok } fn main() {}