Invoking and Opening Units

The invoke-open-unit procedure is useful for testing units without linking them into a larger program:

  (invoke-open-unit expr name-specifier import-variable   ) 

invokes the unit expr like invoke-unit, but the unit's exported variables are created as global variables in the current eventspace. The way in which exported names are created as global variables depends on the name-specifier clause (which is not an expression):

• If name-specifier is #f, then the global variable names are the same as the exported names.
• If name-specifier is an identifier, then the global variable names are the same as the exported names prefixed with name-specifier and a colon (``:'').
• If name-specifier is not provided (and, therefore, no import-variables are provided), name-specifier defaults to #f.