Enum liquid_core::model::map::Entry

pub enum Entry<'a> {
    Vacant(VacantEntry<'a>),
    Occupied(OccupiedEntry<'a>),
}

A view into a single entry in a map, which may either be vacant or occupied. This enum is constructed from the entry method on Object.

Variants

Vacant(VacantEntry<'a>)

A vacant Entry.

Occupied(OccupiedEntry<'a>)

An occupied Entry.

Implementations

impl<'a> Entry<'a>

pub fn key(&self) -> &KString

Returns a reference to this entry’s key.

Examples

let mut map = liquid_core::model::Object::new();
assert_eq!(map.entry("liquid").key(), &"liquid");

pub fn or_insert(self, default: Value) -> &'a mut Value

Ensures a value is in the entry by inserting the default if empty, and returns a mutable reference to the value in the entry.

Examples

let mut map = liquid_core::model::Object::new();
map.entry("liquid").or_insert(liquid_core::value!(12));

assert_eq!(map["liquid"], liquid_core::value!(12));

pub fn or_insert_with<F>(self, default: F) -> &'a mut Value where
    F: FnOnce() -> Value, 

Ensures a value is in the entry by inserting the result of the default function if empty, and returns a mutable reference to the value in the entry.

Examples

let mut map = liquid_core::model::Object::new();
map.entry("liquid").or_insert_with(|| liquid_core::value!("hoho"));

assert_eq!(map["liquid"], liquid_core::value!("hoho"));

Trait Implementations

impl<'a> Debug for Entry<'a>

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

Formats the value using the given formatter.