rust/tests/ui/error-codes/E0225.rs
2023-01-11 09:32:08 +00:00

11 lines
344 B
Rust

#![feature(trait_alias)]
trait Foo = std::io::Read + std::io::Write;
fn main() {
let _: Box<dyn std::io::Read + std::io::Write>;
//~^ ERROR only auto traits can be used as additional traits in a trait object [E0225]
let _: Box<dyn Foo>;
//~^ ERROR only auto traits can be used as additional traits in a trait object [E0225]
}