rust/tests/ui/impl-trait/fallback.rs
2024-02-16 20:02:50 +00:00

10 lines
177 B
Rust

//@ check-pass
fn take_edge_counters(
x: &mut Option<Vec<i32>>,
) -> Option<impl Iterator<Item = i32>> {
x.take().map_or(None, |m| Some(m.into_iter()))
}
fn main() {}