dpovey

Keybase proof

I hereby claim:

• I am dpovey on github.
• I am dpovey (https://keybase.io/dpovey) on keybase.
• I have a public key ASCorcRyppPksXENHtViPrxEBD6pGX-aYtpSe0yQSotcVgo

To claim this, I am signing this object:

dpovey

for {
  email <- EmailAddress(address)
  msg   <- Try { horribleJavaLibraryMethodThatThrowsExceptions }.toEither
} yield {
  sendEmail(email, msg)
}

dpovey

val t = Try { throw new RuntimeException("Boom!") }

dpovey

class EmailAddress(val value: String) extends AnyVal
object EmailAddress {
    def apply(value: String): Either[Exception, EmailAddress] = {
      if (validEmailAddress(value)) {
        Right(new EmailAddress(value))
      } else {
        Left(new IllegalArgumentException(s"Invalid email address: $value"))
      }
    }
}