#![feature(const_trait_impl)] //@ edition: 2021 const trait Trait {} fn main() { let _: &dyn const Trait; //~ ERROR const trait bounds are not allowed in trait object types let _: &dyn [const] Trait; //~ ERROR `[const]` is not allowed here } // Regression test for issue #119525. trait NonConst {} const fn handle(_: &dyn const NonConst) {} //~^ ERROR const trait bounds are not allowed in trait object types //~| ERROR `const` can only be applied to `const` traits const fn take(_: &dyn [const] NonConst) {} //~^ ERROR `[const]` is not allowed here //~| ERROR `[const]` can only be applied to `const` traits