Trait GetCallback 

pub trait GetCallback<T> {
    // Required method
    fn call() -> T;
}

Represents callback action for cases without input for getting some data.

Required Methods

fn call() -> T

Returns value by callback’s logic.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<T: Default> GetCallback<T> for ()

fn call() -> T

Implementors