| // Test that structural match is only permitted with a feature gate, |
| // and that if a feature gate is supplied, it permits the type to be |
| // used in a match. |
| |
| // revisions: with_gate no_gate |
| |
| // gate-test-structural_match |
| |
| #![allow(unused)] |
| #![feature(rustc_attrs)] |
| #![cfg_attr(with_gate, feature(structural_match))] |
| |
| #[structural_match] //[no_gate]~ ERROR semantics of constant patterns is not yet settled |
| struct Foo { |
| x: u32 |
| } |
| |
| const FOO: Foo = Foo { x: 0 }; |
| |
| #[rustc_error] |
| fn main() { //[with_gate]~ ERROR compilation successful |
| let y = Foo { x: 1 }; |
| match y { |
| FOO => { } |
| _ => { } |
| } |
| } |
