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- fn main() {
- println!("Hello, world!");
- }
- struct Node<'a> {
- name: &'a str,
- }
- fn find_or_insert<'a>(nodes: &'a mut Vec<Node<'a>>, name: &'a str) -> &'a Node<'a> {
- match nodes.iter().find(|n| n.name == name) {
- Some(n) => return n,
- None => {}
- }
- let n = Node {
- name,
- };
- nodes.push(n);
- nodes.last().unwrap()
- }
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