Daniel Burrows <[EMAIL PROTECTED]> writes: > What I saw was mostly interface-implementation > stuff; for example, defining a filesystem interface and then having servers > implement it by filling in the functions. Is inheritence also supported, as > in GTK+?
Some kind of inheritance is available via libdiskfs and such. The libraries provide default definitions of functions, and the program can override those if necessary; the linker sees two functions with the same name and chooses the one in the program. But this doesn't allow multiple implementations of an interface within one program. In message <[EMAIL PROTECTED]> (1999-12-09, Subject: Re: Perl support, concept proved), John Tobey suggested putting an OO layer around libports. That would make each port an object with a virtual function for handling messages. I don't know if he implemented that. Stacked translators naturally use delegation instead of inheritance.
