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// build-pass (FIXME(62277): could be check-pass?)
// pretty-expanded FIXME #23616
#![feature(fn_traits, unboxed_closures)]
use std::ops::Fn;
trait Response { fn dummy(&self) { } }
trait Request { fn dummy(&self) { } }
trait Ingot<R, S> {
fn enter(&mut self, _: &mut R, _: &mut S, a: &mut Alloy) -> Status;
}
#[allow(dead_code)]
struct HelloWorld;
struct SendFile;
struct Alloy;
enum Status {
Continue
}
impl Alloy {
fn find<T>(&self) -> Option<T> {
None
}
}
impl<'b> Fn<(&'b mut (dyn Response + 'b),)> for SendFile {
extern "rust-call" fn call(&self, (_res,): (&'b mut (dyn Response + 'b),)) {}
}
impl<'b> FnMut<(&'b mut (dyn Response + 'b),)> for SendFile {
extern "rust-call" fn call_mut(&mut self, (_res,): (&'b mut (dyn Response+'b),)) {
self.call((_res,))
}
}
impl<'b> FnOnce<(&'b mut (dyn Response + 'b),)> for SendFile {
type Output = ();
extern "rust-call" fn call_once(self, (_res,): (&'b mut (dyn Response+'b),)) {
self.call((_res,))
}
}
impl<Rq: Request, Rs: Response> Ingot<Rq, Rs> for HelloWorld {
fn enter(&mut self, _req: &mut Rq, res: &mut Rs, alloy: &mut Alloy) -> Status {
let send_file = alloy.find::<SendFile>().unwrap();
send_file(res);
Status::Continue
}
}
fn main() {}
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