rust/tests/ui/impl-trait/impl-fn-predefined-lifetimes.rs
2024-03-28 06:00:26 +00:00

14 lines
272 B
Rust

#![feature(impl_trait_in_fn_trait_return)]
use std::fmt::Debug;
fn a<'a>() -> impl Fn(&'a u8) -> (impl Debug + '_) {
|x| x
//~^ ERROR expected generic lifetime parameter, found `'_`
}
fn _b<'a>() -> impl Fn(&'a u8) -> (impl Debug + 'a) {
a()
}
fn main() {}