Trait FallibleCallback 

pub trait FallibleCallback<T, R = ()> {
    type Error;

    // Required method
    fn call(arg: &T) -> Result<R, Self::Error>;
}

Represents callback action for cases (&T) -> Result<R, E>, where R is () by default and E is associated type Error.

Required Associated Types

type Error

Returning error in callback’s Err case.

Required Methods

fn call(arg: &T) -> Result<R, Self::Error>

Triggers the callback’s logic.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors