| // Copyright 2017 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. |
| |
| // run-pass |
| macro_rules! fooN { |
| ($cur:ident $prev:ty) => { |
| #[allow(dead_code)] |
| enum $cur { |
| Empty, |
| First($prev), |
| Second($prev), |
| Third($prev), |
| Fourth($prev), |
| } |
| } |
| } |
| |
| fooN!(Foo0 ()); |
| fooN!(Foo1 Foo0); |
| fooN!(Foo2 Foo1); |
| fooN!(Foo3 Foo2); |
| fooN!(Foo4 Foo3); |
| fooN!(Foo5 Foo4); |
| fooN!(Foo6 Foo5); |
| fooN!(Foo7 Foo6); |
| fooN!(Foo8 Foo7); |
| fooN!(Foo9 Foo8); |
| fooN!(Foo10 Foo9); |
| fooN!(Foo11 Foo10); |
| fooN!(Foo12 Foo11); |
| fooN!(Foo13 Foo12); |
| fooN!(Foo14 Foo13); |
| fooN!(Foo15 Foo14); |
| fooN!(Foo16 Foo15); |
| fooN!(Foo17 Foo16); |
| fooN!(Foo18 Foo17); |
| fooN!(Foo19 Foo18); |
| fooN!(Foo20 Foo19); |
| fooN!(Foo21 Foo20); |
| fooN!(Foo22 Foo21); |
| fooN!(Foo23 Foo22); |
| fooN!(Foo24 Foo23); |
| fooN!(Foo25 Foo24); |
| fooN!(Foo26 Foo25); |
| fooN!(Foo27 Foo26); |
| |
| fn main() { |
| let _foo = Foo27::Empty; |
| } |
