tests/ui/traits/const-traits/conditionally-const-assoc-fn-in-trait-impl.rs


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// Regression test for issue #119700.
//@ check-pass
//@ compile-flags: -Znext-solver
#![feature(const_trait_impl)]

#[const_trait]
trait Main {
    fn compute<T: [const] Aux>() -> u32;
}

impl const Main for () {
    fn compute<T: [const] Aux>() -> u32 {
        T::generate()
    }
}

#[const_trait]
trait Aux {
    fn generate() -> u32;
}

impl const Aux for () {
    fn generate() -> u32 { 1024 }
}

fn main() {
    const _: u32 = <()>::compute::<()>();
    let _ = <()>::compute::<()>();
}