| // check-pass | |
| macro_rules! impl_primitive { | |
| ($ty:ty) => { impl_primitive!(impl $ty); }; | |
| (impl $ty:ty) => { fn a(_: $ty) {} } | |
| } | |
| impl_primitive! { u8 } | |
| macro_rules! test { | |
| ($ty:ty) => { compile_error!("oh no"); }; | |
| (impl &) => {}; | |
| } | |
| test!(impl &); | |
| fn main() {} |