Struct VacantEntry

pub struct VacantEntry<'a, K, V, A>
where
    A: Allocator + Clone,
{ /* private fields */ }

Implementations

impl<'a, K, V, A> VacantEntry<'a, K, V, A>

where A: Allocator + Clone,

pub fn key(&self) -> &K

Gets a reference to the key that would be used when inserting a value through the VacantEntry.

Examples

use xsl::collections::RBTreeMap;

let mut map: RBTreeMap<&str, usize> = RBTreeMap::new();
assert_eq!(map.entry("poneyland").key(), &"poneyland");

impl<'a, K, V, A> VacantEntry<'a, K, V, A>

where A: Allocator + Clone,

pub fn insert(self, value: V) -> &'a mut V

where K: Ord,

Sets the value of the entry with the VacantEntry’s key, and returns a mutable reference to it.

Examples

use xsl::collections::rbtree_map::Entry;
use xsl::collections::RBTreeMap;

let mut map: RBTreeMap<&str, u32> = RBTreeMap::new();

if let Entry::Vacant(o) = map.entry("poneyland") {
    o.insert(37);
}
assert_eq!(map["poneyland"], 37);