Struct dyn_context::AppState

pub struct AppState(_);

Allows safely store state in thread-local storage.

Implementations

impl AppState

pub fn set_and_then<T>(f: impl FnOnce() -> T, state: &mut dyn State) -> T

Store the state into a thread-local storage and call the provided function. During the function execution the state is accessible through the AppState::with method.

pub fn with<T>(f: impl FnOnce(&mut dyn State) -> T) -> T

Get state from a thread-local storage. If this method is call outside of AppState::set_and_then execution context, state is not accessible, and the method panics.

Trait Implementations

impl Drop for AppState

fn drop(&mut self)

Executes the destructor for this type.