rust/tests/ui/empty/empty-struct-unit-pat.rs
2024-02-16 20:02:50 +00:00

55 lines
1.4 KiB
Rust

// Can't use unit struct as tuple struct pattern
//@ aux-build:empty-struct.rs
extern crate empty_struct;
use empty_struct::*;
struct Empty2;
enum E {
Empty4
}
fn main() {
let e2 = Empty2;
let e4 = E::Empty4;
let xe2 = XEmpty2;
let xe4 = XE::XEmpty4;
match e2 {
Empty2() => () //~ ERROR expected tuple struct or tuple variant, found unit struct `Empty2`
}
match xe2 {
XEmpty2() => ()
//~^ ERROR expected tuple struct or tuple variant, found unit struct `XEmpty2`
}
match e2 {
Empty2(..) => ()
//~^ ERROR expected tuple struct or tuple variant, found unit struct `Empty2`
}
match xe2 {
XEmpty2(..) => ()
//~^ ERROR expected tuple struct or tuple variant, found unit struct `XEmpty2`
}
match e4 {
E::Empty4() => ()
//~^ ERROR expected tuple struct or tuple variant, found unit variant `E::Empty4`
}
match xe4 {
XE::XEmpty4() => (),
//~^ ERROR expected tuple struct or tuple variant, found unit variant `XE::XEmpty4`
_ => {},
}
match e4 {
E::Empty4(..) => ()
//~^ ERROR expected tuple struct or tuple variant, found unit variant `E::Empty4`
}
match xe4 {
XE::XEmpty4(..) => (),
//~^ ERROR expected tuple struct or tuple variant, found unit variant `XE::XEmpty4`
_ => {},
}
}