#![feature(generator_trait)] | |
#![feature(generators)] | |
#![feature(unsized_locals)] | |
//~^ WARN the feature `unsized_locals` is incomplete and may not be safe to use and/or cause compiler crashes | |
use std::ops::Generator; | |
fn across() -> impl Generator { | |
move || { | |
let b: [u8] = *(Box::new([]) as Box<[u8]>); | |
//~^ ERROR the size for values of type `[u8]` cannot be known at compilation time | |
yield; | |
for elem in b.iter() {} | |
} | |
} | |
fn main() { | |
across(); | |
} |