| // rust-lang/rust#57979 : the initial support for `impl Trait` didn't | |
| // properly check syntax hidden behind an associated type projection. | |
| // Here we test behavior of occurrences of `impl Trait` within a path | |
| // component in that context. | |
| pub trait Bar { } | |
| pub trait Quux<T> { type Assoc; } | |
| pub fn demo(_: impl Quux<(), Assoc=<() as Quux<impl Bar>>::Assoc>) { } | |
| //~^ ERROR `impl Trait` is not allowed in path parameters | |
| impl<T> Quux<T> for () { type Assoc = u32; } | |
| fn main() { } |