rust/tests/ui/issues/issue-7673-cast-generically-implemented-trait.rs
2023-01-11 09:32:08 +00:00

21 lines
330 B
Rust

// check-pass
#![allow(dead_code)]
// pretty-expanded FIXME #23616
/*
#7673 Polymorphically creating traits barely works
*/
pub fn main() {}
trait A {
fn dummy(&self) { }
}
impl<T: 'static> A for T {}
fn owned2<T: 'static>(a: Box<T>) { a as Box<dyn A>; }
fn owned3<T: 'static>(a: Box<T>) { Box::new(a) as Box<dyn A>; }