rust/tests/ui/impl-trait/fallback.rs
2023-01-11 09:32:08 +00:00

10 lines
176 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() {}