bl@tnoibbc.UUCP (Bart Luijten) (11/16/90)
Hello, We are trying to use the Repeated Inheritence mechanism in EIFFEL, but are having some problems. We have reduced the problem to the following two EIFFEL classes DAD and SON, where class SON inherits twice from class DAD (this is hypothetic, of course). The classes DAD and SON are listed below: class DAD export Number feature List: LINKED_LIST[INTEGER]; Create is do List.Create end; Number: INTEGER is do Result := List.Size end; end -- class DAD class SON export Number1, Number2 inherit DAD rename List as List1, Number as Number1; DAD rename List as List2, Number as Number2 feature Create is do List1.Create; List2.Create end; end -- class SON When we try to compile the class SON, we get the following error message: Pass 2 on class son Repeated inheritance - Duplicated feature: number2 (Original feature: number in class dad ) "son", 15: Remote notation may not be used in routine number2 that is replicated under repeated inheritance. Fatal error. Cannot resume. *** ec: pass2 canceled If anyone has encountered this problem before, and has found a solution, or could tell us if this is a bug, we would like to know. Bart Luiten and Bart Luijten (this is no joke!) : TNO - IBBC INTERNET : bl@tnoibbc : PO-box 49 DOMAIN : bl@ibbc.tno.nl : 2600 AA Delft FAX : +31 15 843990 : the Netherlands VOICE : +31 15 842357 -- Bart "DiBarto" Luijten: TNO - IBBC INTERNET : bl@tnoibbc : PO-box 49 DOMAIN : bl@ibbc.tno.nl : 2600 AA Delft FAX : +31 15 843990 : the Netherlands VOICE : +31 15 842357