| #![feature(allow_internal_unstable)] | |
| // Macro to help ensure CONST_ERR lint errors | |
| // are not silenced in external macros. | |
| // https://github.com/rust-lang/rust/issues/65300 | |
| #[macro_export] | |
| #[allow_internal_unstable(type_ascription)] | |
| macro_rules! static_assert { | |
| ($test:expr) => { | |
| #[allow(dead_code)] | |
| const _: () = [()][!($test: bool) as usize]; | |
| } | |
| } |