Root

The Root level of the definitional hierarchy is the top most concept in the language but there is no syntax to define a “Root”. Instead, you just create definitions in a file. The “Root” concept is identical to the file content.

At the Root (file) level you can only do two things:

• include definitions from another file,
• define a top level domain

For example:

include "other-file"

domain foo is {
  ???
}

In this example, we have included all the definitions from “other-file” but they can only be domain definitions. This example also abstractly defines a domain named foo.

Now, you can use the tree below to navigate the definitional hierarchy. We recommend you start with Domain and work your way down from there.