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//! This test used to ICE: rust-lang/rust#123276 because we did
//! not taint when failing to find the `Foo` type and then tried
//! to normalize it.
//@ edition:2021
async fn create_task() {
_ = Some(async { bind(documentation_filter()) });
}
async fn bind<Fut, F: Filter<Future = Fut>>(_: F) {}
fn documentation_filter() -> impl Filter {
AndThen
}
trait Filter {
type Future;
}
struct AndThen;
impl Filter for AndThen
where
Foo: Filter, //~ ERROR: cannot find type `Foo`
{
type Future = ();
}
fn main() {}
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