| // edition:2021 | |
| use std::iter; | |
| fn f<T>(data: &[T]) -> impl Iterator<Item = Vec> { | |
| //~^ ERROR: missing generics for struct `Vec` [E0107] | |
| iter::empty() | |
| } | |
| fn g<T>(data: &[T], target: T) -> impl Iterator<Item = Vec<T>> { | |
| f(data).filter(|x| x == target) | |
| } | |
| fn main() {} |