rust/tests/ui/generator/layout-error.rs

29 lines
648 B
Rust

// Verifies that computing a layout of a generator tainted by type errors
// doesn't ICE. Regression test for #80998.
//
// edition:2018
#![feature(type_alias_impl_trait)]
use std::future::Future;
pub struct Task<F: Future>(F);
impl<F: Future> Task<F> {
const fn new() -> Self {
todo!()
}
fn spawn(&self, _: impl FnOnce() -> F) {
todo!()
}
}
fn main() {
async fn cb() {
let a = Foo; //~ ERROR cannot find value `Foo` in this scope
}
type F = impl Future;
// Check that statics are inhabited computes they layout.
static POOL: Task<F> = Task::new();
Task::spawn(&POOL, || cb());
}