lu4nm3/ex17_smart.scala

Created May 16, 2020 20:17

Star () You must be signed in to star a gist
Fork () You must be signed in to fork a gist

Learn more about clone URLs
Clone this repository at <script src="https://gist.github.com/lu4nm3/1cf4d1dd31cddfa1edbe82b95df263d3.js"></script>
Save lu4nm3/1cf4d1dd31cddfa1edbe82b95df263d3 to your computer and use it in GitHub Desktop.

Download ZIP

ex17 - https://medium.com/@lu4nm3/use-smart-constructors-to-create-safe-apis-c3cbd9ac205d

Raw

ex17_smart.scala

	scala> new EmailAddress("@example.com") {}
	<console>:15: error: illegal inheritance from sealed class EmailAddress
	new EmailAddress(""){}

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment