Trait ErrGettable

pub trait ErrGettable {
    type Res;

    // Required method
    fn get_err(self) -> Self::Res;
}

Required Associated Types

type Res

Required Methods

fn get_err(self) -> Self::Res

Implementations on Foreign Types

impl<T, E: Empty> ErrGettable for Result<T, E>

fn get_err(self) -> E

Safely unwraps a Result, yielding the content of an Err.

Examples

let x: Rresult<u32, &str> = Ok(2);
x.get_err(); 

let x: Rresult<u32, &str> = Err("emergency failure");
assert_eq!(x.get_err(), "emergency failure");

type Res = E

Implementors