Version: 4.2.1

6.10 Single-Unit Modules

When scheme/unit is used as a language name with #lang, the module body is treated as a unit body. The body must match the following module-body grammar:

  module-body = 
require-decl ...
(import tagged-sig-expr ...)
(export tagged-sig-expr ...)
init-depends-decl
unit-body-expr-or-defn
...
     
  require-decl = (require require-spec ...)
  | (begin require-decl ...)
  | derived-require-form

After any number of require-decls, the content of the module is the same as a unit body.

The resulting unit is exported as base@, where base is derived from the enclosing module’s name (i.e., its symbolic name, or its path without the directory and file suffix). If the module name ends in -unit, then base corresponds to the module name before -unit. Otherwise, the module name serves as base.