13.2 Modules

A library is made up of modules, which hold the definitions of the library. Each module specifies an independent namespace for Dylan constants and variables. Each module can use definitions from other modules in the same library or in other libraries, and each module can provide definitions to other modules in the same or in other libraries. Each module controls the visibility of the names within a module from outside the module. You can use modules both to do information hiding and to prevent name clashes between constants and variables.