rust/tests/ui/borrowck/borrowck-use-uninitialized-in-cast-trait.fixed
2024-04-10 20:36:14 +00:00

13 lines
328 B
Rust

// Variation on `borrowck-use-uninitialized-in-cast` in which we do a
// trait cast from an uninitialized source. Issue #20791.
//@ run-rustfix
#![allow(unused_variables, dead_code)]
trait Foo { fn dummy(&self) { } }
impl Foo for i32 { }
fn main() {
let x: &i32 = &42;
let y = x as *const dyn Foo; //~ ERROR [E0381]
}