Struct OccupiedEntry

pub struct OccupiedEntry<'a> { /* private fields */ }

An occupied Entry. It is part of the Entry enum.

Implementations

impl<'a> OccupiedEntry<'a>

pub fn key(&self) -> &Cow<'static, str>

Gets a reference to the key in the entry.

Examples

use liquid_value::map::Entry;

let mut map = liquid_value::map::Map::new();
map.insert("liquid".into(), liquid_value!(12));

match map.entry("liquid") {
    Entry::Occupied(occupied) => {
        assert_eq!(occupied.key(), &"liquid");
    }
    Entry::Vacant(_) => unimplemented!(),
}

pub fn get(&self) -> &Value

Gets a reference to the value in the entry.

Examples

use liquid_value::map::Entry;

let mut map = liquid_value::map::Map::new();
map.insert("liquid".into(), liquid_value!(12));

match map.entry("liquid") {
    Entry::Occupied(occupied) => {
        assert_eq!(occupied.get(), &liquid_value!(12));
    }
    Entry::Vacant(_) => unimplemented!(),
}

pub fn get_mut(&mut self) -> &mut Value

Gets a mutable reference to the value in the entry.

Examples

use liquid_value::map::Entry;

let mut map = liquid_value::map::Map::new();
map.insert("liquid".into(), liquid_value!([1, 2, 3]));

match map.entry("liquid") {
    Entry::Occupied(mut occupied) => {
        occupied.get_mut().as_array_mut().unwrap().push(liquid_value!(4));
    }
    Entry::Vacant(_) => unimplemented!(),
}

assert_eq!(map["liquid"].as_array().unwrap().len(), 4);

pub fn into_mut(self) -> &'a mut Value

Converts the entry into a mutable reference to its value.

Examples

use liquid_value::map::Entry;

let mut map = liquid_value::map::Map::new();
map.insert("liquid".into(), liquid_value!([1, 2, 3]));

match map.entry("liquid") {
    Entry::Occupied(mut occupied) => {
        occupied.into_mut().as_array_mut().unwrap().push(liquid_value!(4));
    }
    Entry::Vacant(_) => unimplemented!(),
}

assert_eq!(map["liquid"].as_array().unwrap().len(), 4);

pub fn insert(&mut self, value: Value) -> Value

Sets the value of the entry with the OccupiedEntry’s key, and returns the entry’s old value.

Examples

use liquid_value::map::Entry;

let mut map = liquid_value::map::Map::new();
map.insert("liquid".into(), liquid_value!(12));

match map.entry("liquid") {
    Entry::Occupied(mut occupied) => {
        assert_eq!(occupied.insert(liquid_value!(13)), liquid_value!(12));
        assert_eq!(occupied.get(), &liquid_value!(13));
    }
    Entry::Vacant(_) => unimplemented!(),
}

pub fn remove(self) -> Value

Takes the value of the entry out of the map, and returns it.

Examples

use liquid_value::map::Entry;

let mut map = liquid_value::map::Map::new();
map.insert("liquid".into(), liquid_value!(12));

match map.entry("liquid") {
    Entry::Occupied(occupied) => {
        assert_eq!(occupied.remove(), liquid_value!(12));
    }
    Entry::Vacant(_) => unimplemented!(),
}

Trait Implementations

impl<'a> Debug for OccupiedEntry<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.