enum Enum { Foo { a: usize, b: usize }, Bar(usize, usize), } fn main() { let x = Enum::Foo(a: 3, b: 4); //~^ ERROR invalid `struct` delimiters or `fn` call arguments match x { Enum::Foo(a, b) => {} //~^ ERROR expected tuple struct or tuple variant, found struct variant `Enum::Foo` Enum::Bar { a, b } => {} //~^ ERROR tuple variant `Enum::Bar` written as struct variant } }