src/Sirh3e.Rust/Result/Methods/Result.Flatten.Extension.cs from sirh3e/Rust

src/Sirh3e.Rust/Result/Methods/Result.Flatten.Extension.cs

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namespace Sirh3e.Rust.Result;

public static partial class ResultExtension
{
    /// <summary>
    /// Converts from Result&lt;Result&lt;TOk, TErr&gt;, TErr&gt; to Result&lt;TOk, TErr&gt;
    /// </summary>
    /// <param name="result"></param>
    /// <typeparam name="TOk"></typeparam>
    /// <typeparam name="TErr"></typeparam>
    /// <returns></returns>
    public static Result<TOk, TErr> Flatten<TOk, TErr>(this Result<Result<TOk, TErr>, TErr> result)
        => result.Match(
                        ok => ok,
                        Result<TOk, TErr>.Err);

    /// <summary>
    /// Converts from Result&lt;Result&lt;TOk, TErr&gt;, TErr&gt; to Result&lt;TOk, TErr&gt;
    /// </summary>
    /// <param name="result"></param>
    /// <typeparam name="TOk"></typeparam>
    /// <typeparam name="TErr"></typeparam>
    /// <returns></returns>
    public static Result<TOk, TErr> Flatten<TOk, TErr>(this Result<TOk, TErr> result)
        => result;
}