//@ check-pass use std::marker::PhantomData; struct Meta { value: i32, type_: PhantomData } trait MetaTrait { fn get_value(&self) -> i32; } impl MetaTrait for Meta { fn get_value(&self) -> i32 { self.value } } trait Bar { fn get_const(&self) -> &dyn MetaTrait; } struct Foo { _value: A } impl Foo { const CONST: &'static dyn MetaTrait = &Meta:: { value: 10, type_: PhantomData }; } impl Bar for Foo { fn get_const(&self) -> &dyn MetaTrait { Self::CONST } } fn main() { let foo = Foo:: { _value: 10 }; let bar: &dyn Bar = &foo; println!("const {}", bar.get_const().get_value()); }