// gate-test-const_async_blocks //@ edition:2018 //@ revisions: with_feature without_feature #![feature(rustc_attrs)] #![cfg_attr(with_feature, feature(const_async_blocks))] use std::future::Future; // From const _: i32 = { core::mem::ManuallyDrop::new(async { 0 }); 4 }; //[without_feature]~^ `async` block static _FUT: &(dyn Future + Sync) = &async {}; //[without_feature]~^ `async` block #[rustc_error] fn main() {} //[with_feature]~ fatal error triggered by #[rustc_error]