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Text File  |  2000-02-13  |  312b  |  16 lines
  1. "----------------------------------------------------------------"
  2. "'nil' Should be the only Undefined Object in the system.        "
  3. "----------------------------------------------------------------"
  4.  
  5. Class UndefinedObject :Object
  6. [
  7.    isNil
  8.      ^ true
  9. |
  10.    notNil
  11.      ^ false
  12. |
  13.    printString
  14.      ^ 'nil'
  15. ]
  16.