mirror of
				https://github.com/rust-lang/rust.git
				synced 2025-11-03 22:49:17 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			17 lines
		
	
	
		
			427 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
			
		
		
	
	
			17 lines
		
	
	
		
			427 B
		
	
	
	
		
			Rust
		
	
	
	
	
	
// edition:2021
 | 
						|
 | 
						|
// FIXME(async_closures): This needs a better error message!
 | 
						|
 | 
						|
#![feature(async_closure)]
 | 
						|
 | 
						|
fn main() {
 | 
						|
    fn needs_async_fn(_: impl async Fn()) {}
 | 
						|
 | 
						|
    let mut x = 1;
 | 
						|
    needs_async_fn(async || {
 | 
						|
        //~^ ERROR i16: ops::async_function::internal_implementation_detail::AsyncFnKindHelper<i8>
 | 
						|
        // FIXME: Should say "closure is `async FnMut` but it needs `async Fn`" or sth.
 | 
						|
        x += 1;
 | 
						|
    });
 | 
						|
}
 |