rust/tests/ui/consts/auxiliary/external_macro.rs
2023-01-11 09:32:08 +00:00

15 lines
375 B
Rust

#![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];
}
}