srp-and-a-new-language.md

SRP

SRP kind of implies that each class has only one public method, and perhaps multiple supporting private methods.

What if our language forced this?

Reading files

ReadsFiles
  path

  execute
    # return file contents
  end
end

file_text = ReadsFile("file.txt")!

See how we only have one usage? Could this language even be usable?

Sending email

email = Email("andrew.vos@gmail.com", "hey!", "what's up?")
SendsEmail(email)!

Email
  to, subject, body
end

SendsEmail
  email

  execute
    connection = SmtpConnection("smtp.bla.com")
    SendsSmtpMail(connection, email)!
  end
end

Recursively delete files

    path = Path("files/")
    DeletesFiles(path)!

    DeletesFiles
      path

      each file in ListsFiles(path)!
        DeletesFile(path)
      end

      each directory in ListsDirectories(path)!
        DeletesFiles(path)!
      end
    end

    DeletesFile
      path

      execute
        ExecutesCommand("rm " + path)
      end
    end