rust/tests/ui/async-await/async-fn/project.rs

14 lines
352 B
Rust

//@ edition:2018
//@ revisions: current next
//@ ignore-compare-mode-next-solver (explicit revisions)
//@[next] compile-flags: -Znext-solver
//@ check-pass
#![feature(async_closure, unboxed_closures, async_fn_traits)]
fn project<F: async Fn<()>>(_: F) -> Option<F::Output> { None }
fn main() {
let x: Option<i32> = project(|| async { 1i32 });
}