rust/src/test/compile-fail/empty-struct-tuple-pat.rs
Vadim Petrochenkov 59be332a1b Remove restrictions from tuple structs/variants
Hard errors are turned into feature gates
2016-08-13 00:08:14 +03:00

48 lines
1.3 KiB
Rust

// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
// Can't use unit struct as enum pattern
// aux-build:empty-struct.rs
#![feature(relaxed_adts)]
extern crate empty_struct;
use empty_struct::*;
struct Empty2();
enum E {
Empty4()
}
// remove attribute after warning cycle and promoting warnings to errors
fn main() {
let e2 = Empty2();
let e4 = E::Empty4();
let xe6 = XEmpty6();
let xe5 = XE::XEmpty5();
match e2 {
Empty2 => () //~ ERROR `Empty2` does not name a unit variant, unit struct or a constant
}
match xe6 {
XEmpty6 => () //~ ERROR `XEmpty6` does not name a unit variant, unit struct or a constant
}
match e4 {
E::Empty4 => () //~ ERROR `E::Empty4` does not name a unit variant, unit struct or a
}
match xe5 {
XE::XEmpty5 => (), //~ ERROR `XE::XEmpty5` does not name a unit variant, unit struct or a
_ => {},
}
}