lifetime_bounds.rs
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async_channel.rs
lifetime_bounds.rs
trait_object.rs
macro_recursive.rs
unsafe_transmute.rs
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lifetime_bounds.rs
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struct Cache<'a, T: 'a + Clone> {↵
data: Vec<&'a T>,↵
map: HashMap<&'a str, T>,↵
}↵
impl<'a, T: Clone + 'a> Cache<'a, T> {↵
fn get_or_insert<F>(&mut self, key: &'a str, f: F) -> &T↵
where F: FnOnce() -> T {↵
self.map.entry(key).or_insert_with(f)↵
}↵
}
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