//Plus on VoidResult<TError>
public static VoidResult <TError> Plus <TError>(this VoidResult <TError> left, VoidResult <TError> right, Func <TError, TError, TError> mergeFunc)
=> left.Match(
leftValue => right.Match(
rightValue => Ok <TError>(), Fail
),
error => right.Match(
rightValue => Fail(error),
otherError => Fail(mergeFunc.ThrowIfDefault(nameof(mergeFunc))(error, otherError))
)
);
//Flatten on VoidResult<TError> public static VoidResult <TError> Flatten <TError>(this VoidResult <VoidResult <TError> > value) => value.Match(_ => Ok <TError>(), Id);
//Plus on VoidResult
public static VoidResult Plus(this VoidResult left, VoidResult right)
=> left.Match(
leftValue => right.Match(_ => Ok(), Fail),
error => right.Match(rightValue => Fail(error), otherError => Fail(error.Concat(otherError)))
);