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rust/src/test/run-pass/issue-14865.rs

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Fix #14865 Fixes a codegen bug which generates illegal non-terminated LLVM block when there are wildcard pattern with guard and enum patterns in a match expression. Also refactors the code a little. Closes #14865
2014-06-18 09:33:58 -05:00
// Copyright 2012-2014 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 X {
Foo(uint),
Bar(bool)
}
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
let x = match X::Foo(42) {
Remove all `i` suffixes
2015-01-25 15:05:03 -06:00
X::Foo(..) => 1,
Fix #14865 Fixes a codegen bug which generates illegal non-terminated LLVM block when there are wildcard pattern with guard and enum patterns in a match expression. Also refactors the code a little. Closes #14865
2014-06-18 09:33:58 -05:00
_ if true => 0,
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
X::Bar(..) => panic!("Oh dear")
Fix #14865 Fixes a codegen bug which generates illegal non-terminated LLVM block when there are wildcard pattern with guard and enum patterns in a match expression. Also refactors the code a little. Closes #14865
2014-06-18 09:33:58 -05:00
};
assert_eq!(x, 1);
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
let x = match X::Foo(42) {
Remove all `i` suffixes
2015-01-25 15:05:03 -06:00
_ if true => 0,
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
X::Foo(..) => 1,
X::Bar(..) => panic!("Oh dear")
Fix #14865 Fixes a codegen bug which generates illegal non-terminated LLVM block when there are wildcard pattern with guard and enum patterns in a match expression. Also refactors the code a little. Closes #14865
2014-06-18 09:33:58 -05:00
};
assert_eq!(x, 0);
}
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