rust/src/test/compile-fail/issue-5358-1.rs

// Copyright 2013 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.

enum Either<T, U> { Left(T), Right(U) }
struct S(Either<uint, uint>);

fn main() {
    match S(Either::Left(5)) {
        Either::Right(_) => {}  //~ ERROR mismatched types: expected `S`, found `Either
        _ => {}
    }
}
rustc: Handle struct patterns where the expected type is an enum Previously, rustc would ICE if you matched on an enum-typed thing with a structure pattern. Error out correctly. 2013-05-02 17:38:19 -05:00			`// Copyright 2013 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.`

Remove std::either 2013-12-25 23:55:05 -06:00			`enum Either<T, U> { Left(T), Right(U) }`
rustc: Handle struct patterns where the expected type is an enum Previously, rustc would ICE if you matched on an enum-typed thing with a structure pattern. Error out correctly. 2013-05-02 17:38:19 -05:00			`struct S(Either<uint, uint>);`

			`fn main() {`
Switch to purely namespaced enums This breaks code that referred to variant names in the same namespace as their enum. Reexport the variants in the old location or alter code to refer to the new locations: ``` pub enum Foo { A, B } fn main() { let a = A; } ``` => ``` pub use self::Foo::{A, B}; pub enum Foo { A, B } fn main() { let a = A; } ``` or ``` pub enum Foo { A, B } fn main() { let a = Foo::A; } ``` [breaking-change] 2014-11-06 02:05:53 -06:00			`match S(Either::Left(5)) {`
			Either::Right(_) => {} //~ ERROR mismatched types: expected `S`, found `Either
rustc: Handle struct patterns where the expected type is an enum Previously, rustc would ICE if you matched on an enum-typed thing with a structure pattern. Error out correctly. 2013-05-02 17:38:19 -05:00			`_ => {}`
			`}`
			`}`