this-is-fine

☕🐕

Utilities for working with type Fine<T, E> = (T, Result<(), E>).

It's a useful return type for map and set insertions.

The API is mostly a port of Result<T, E>'s.

Installation

Please use cargo-edit to always add the latest version of this library:

cmd cargo add this-is-fine

Example

This is a slightly incomplete API preview.

```rust use thisisfine::{Fine, prelude::*};

let fine: Fine<_, ()> = ((), Ok(()));

fine.fine(); // Discard any error. fine.notfine(); // Convert to Result. fine.ok(); // .not_fine().ok() fine.err(); // .1.err() fine.isok(); // .1.is_ok() fine.iserr(); // .1.is_err() fine.asref(); // Like Result::as_ref. fine.map(|t| t); // Like Result::map. fine.map_err(|e| e); // Like Result::map_err. fine.expect("message"); // Like .fine, but can panic. fine.unwrap(); // "

let mut fine = fine; fine.as_mut(); // Like Result::as_mut.

// Some error is still fine. let fine = thisisfine::frominverse(((), Some(()))); fine.expecterr("message"); fine.unwrap_err(); fine.fine();

// Twice as fine. let finefine: Finefine.transpose(); // Exchange Results. ```