rust/tests/ui/never_type/never-result.rs

22 lines
418 B
Rust

//@ run-pass
#![allow(unused_variables)]
#![allow(unreachable_code)]
// Test that we can extract a ! through pattern matching then use it as several different types.
#![feature(never_type)]
fn main() {
let x: Result<u32, !> = Ok(123);
match x {
Ok(z) => (),
Err(y) => {
let q: u32 = y;
let w: i32 = y;
let e: String = y;
y
},
}
}