some-to-err 0.2.0

A set of traits for converting `Option` to `Result`, providing methods to transform `Some` values to `Err` while handling `None` values as `Ok`, either directly or using a closure to generate the Ok result.
Documentation

Some To Err

This crate offers a pair of traits for effortlessly transforming Option into Result, elegantly converting Some values into Err while gracefully handling None values as Ok. Unleash the full potential of Rust's error handling capabilities with these versatile traits.

Usage

Add this to your crate by:

cargo add some-to-err

Or add this to your Cargo.toml:

[dependencies]
some-to-err = "0.2.0"

and then:

use some_to_err::ErrOr;

{
    let some: Option<&str> = Some("Error");
    let result = some.err_or(42);
    assert_eq!(result, Err("Error"));
}

{
    let none: Option<&str> = None;
    let result = none.err_or(42);
    assert_eq!(result, Ok(42));
}

{
    let input: Option<&str> = None;
    let result = input.err_or(|| "Ok");
    assert_eq!(result, Ok("Ok"));
}

{
    let input = Some("Error");
    let result = input.err_or(|| "Ok");
    assert_eq!(result, Err("Error"));
}

License