rust/tests/ui/traits/trait-upcasting/multiple_supertrait_upcastable.rs

11 lines
200 B
Rust

#![feature(multiple_supertrait_upcastable)]
#![deny(multiple_supertrait_upcastable)]
trait A {}
trait B {}
trait C: A + B {}
//~^ ERROR `C` is object-safe and has multiple supertraits
fn main() {}