Struct LazyCell

pub struct LazyCell<T, I = fn() -> T> { /* private fields */ }

A lazily instantiated cell

Implementations

impl<T, I> LazyCell<T, I>

pub const fn new(init: I) -> Self

Creates a new lazy cell with the given initializer

pub unsafe fn scope<F, FR>(&self, scope: F) -> FR

where I: FnOnce() -> T, F: FnOnce(&mut T) -> FR,

Provides scoped access to the underlying value, initializes it if necessary

Safety

This function provides unchecked, mutable access to the underlying value, so incorrect use of this function may lead to race conditions or undefined behavior.

pub fn scope_mut<F, FR>(&self, scope: F) -> FR

where I: FnOnce() -> T, F: FnOnce(&mut T) -> FR,

Provides scoped access to the underlying value, initializes it if necessary