//! Helper: A cloneable wrapper for io::Result.

//!

//! This is all necessary because io::Error doesn't implement `Clone`.

use extend::ext;

use std::{io, sync::Arc};

/// A helper type for a variation on an `io::Error` that we can clone.

pub(crate) type ArcIoResult<R> = Result<R, Arc<io::Error>>;

/// Extension trait for `Result<T, Arc<io::Error>>`

#[ext(name = ArcIoResultExt)]

pub(crate) impl<T: Clone> Result<T, Arc<io::Error>> {

    /// Create a new `io::Result<T>` from this `ArcIoResult<T>`

    ///

    /// We do this by making a new new io::Error (if necessary)

    /// with [`wrap_error`].

        }

}

/// Wrap an Arc<io::Error> as a new io::Error.