Alias
The alias
macro from base.orb can be used to refer to a type using a different name. This is useful for long type expressions, or types you anticipate wanting to refactor in the future.
alias Transformation (f32 4 4);
Aliases are defined only in the scope in which you invoke the alias
macro. This is usually done from the global scope.
There is a convention to start user-defined types and aliases with an uppercase letter.