[KinoSearch] adding a proximity scorer - Boilerplater

[Marvin Humphrey]

On Jun 14, 2007, at 10:30 PM, Nathan Kurz wrote:
> Is there a way I can do this with the BoilerPlater vtable stuff?  I
> haven't actually figured out how ORScorer_tally() actually gets called
> from Scorer_Tally().

Scorer_tally   ... is a function.
Scorer_Tally   ... is a method.

If you call Scorer_tally(foo_scorer), it will execute Scorer_tally in  
Scorer.c.

If you call Scorer_Tally(foo_scorer), it will execute FooScorer_tally  
in FooScorer.c.

Take a look at the code BoilerPlater generates.  Here's how  
Scorer_Tally is defined:

   #define Kino_Scorer_Tally(self) \
       (self)->_->tally((kino_Scorer*)self)

self->_ is a vtable pointer.  <http://en.wikipedia.org/wiki/Vtable>

To subclass OrScorer, create MyOrScorer.c and MyOrScorer.h following  
the guidelines documented in the POD for devel/lib/BoilerPlater.pm.   
All you'll need is a constructor and a MyOrScorer_tally function.   
The rest will inherit.

(I'll reply to the rest of your message later, but I wanted to  
expedite this bit.)

Marvin Humphrey
Rectangular Research
http://www.rectangular.com/