Struct stanza::lazy::Lazy

pub struct Lazy<F, T>(_)
where
    F: FnOnce() -> T;

Lazily evaluated value supplied by a closure.

Implementations

impl<F, T> Lazy<F, T>where
    F: FnOnce() -> T,

pub fn new(f: F) -> Self

Creates a new Lazy backed by the given closure.

pub fn get(&mut self) -> &T

Obtains the memoized value, evaluating the closure if unset.

pub fn try_get(&self) -> Option<&T>

Tries to obtain the memoized value if it is set. The closure is not evaluated if unset.