Struct OccupiedEntry 

pub struct OccupiedEntry<'a, T, S, A = Global>
where
    A: Allocator,
{ /* private fields */ }

A view into an occupied entry in a HashSet. It is part of the Entry enum.

Examples

use rune::alloc::hash_set::{Entry, HashSet, OccupiedEntry};
use rune::alloc::prelude::*;

let mut set = HashSet::new();
set.try_extend(["a", "b", "c"])?;

let _entry_o: OccupiedEntry<_, _> = set.entry("a").try_insert()?;
assert_eq!(set.len(), 3);

// Existing key
match set.entry("a") {
    Entry::Vacant(_) => unreachable!(),
    Entry::Occupied(view) => {
        assert_eq!(view.get(), &"a");
    }
}

assert_eq!(set.len(), 3);

// Existing key (take)
match set.entry("c") {
    Entry::Vacant(_) => unreachable!(),
    Entry::Occupied(view) => {
        assert_eq!(view.remove(), "c");
    }
}
assert_eq!(set.get(&"c"), None);
assert_eq!(set.len(), 2);