public void EitherSwapWhenRight2()
{
string expected = string.Empty;
Either <string, int> either = 10;
Either <int, string> swappedEither =
EitherModule.Swap(either);
string result = swappedEither.Match(right => right, left => string.Empty);
Assert.AreEqual(expected, result);
}
public void EitherSwapWhenLeft()
{
int expected = 0;
Either <string, int> either = "Hello";
Either <int, string> swappedEither =
EitherModule.Swap(either);
int result = swappedEither.Match(right => 0, left => left);
Assert.AreEqual(expected, result);
}
/// <summary>
/// Creates a new <see cref="Either{TLeft, TRight}"/> value by swapping <see cref="Either{TLeft, TRight}.Left"/> and <see cref="Either{TLeft, TRight}.Right"/> values.
/// </summary>
/// <typeparam name="TLeft">The type of the left value.</typeparam>
/// <typeparam name="TRight">The type of the right value.</typeparam>
/// <param name="either">the input either.</param>
/// <returns>
/// Returns a new <see cref="Either{TLeft, TRight}"/> value by swapping <see cref="Either{TLeft, TRight}.Left"/> and <see cref="Either{TLeft, TRight}.Right"/> values.
/// </returns>
public static Either <TRight, TLeft> Swap <TLeft, TRight>(this Either <TLeft, TRight> either)
=> EitherModule.Swap(either);
