Struct fluid_let::DynamicVariable

pub struct DynamicVariable<T: 'static> { /* private fields */ }

A global dynamic variable.

Declared and initialized by the fluid_let! macro.

See crate-level documentation for examples.

Implementations

impl<T> DynamicVariable<T>

pub fn get<R>(&self, f: impl FnOnce(Option<&T>) -> R) -> R

Access current value of the dynamic variable.

pub fn set<R>(&self, value: impl Borrow<T>, f: impl FnOnce() -> R) -> R

Bind a new value to the dynamic variable.

impl<T: Clone> DynamicVariable<T>

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

Clone current value of the dynamic variable.

impl<T: Copy> DynamicVariable<T>

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

Copy current value of the dynamic variable.