RE: [Caml-list] optimizing functors

["Michael Hicks" <mhicks@cs.cornell.edu>]

I believe that the MLton compiler, which is a whole-program compiler for SML, does this sort of optimization.  See http://www.sourcelight.com/MLton/.

Mike

> -----Original Message-----
> From: David Monniaux [mailto:David.Monniaux@ens.fr]
> Sent: Monday, February 04, 2002 7:50 AM
> To: Xavier Leroy
> Cc: Liste CAML
> Subject: Re: [Caml-list] optimizing functors
> 
> 
> On Sat, 2 Feb 2002, Xavier Leroy wrote:
> 
> > Yes, but not across functor applications.  More precisely, functions
> > that are passed through a functor parameter cannot be inlined nor
> > called with the optimized "direct" application scheme, they 
> always go
> > through the generic "indirect-through-closure" application scheme.
> 
> I realize that the current scheme of implementing modules as 
> records is
> (relatively) simple and allows easy separate compilation. However, it
> prevents optimizations, as you said.
> 
> In code containing many modules consisting of a few small 
> functions called
> by functions in functors, this lack of optimization may be costly.
> 
> I was thinking of implementing such functors similarly as C++ 
> templates
> (expanding the functor parameters). Has some work been done on this?
> 
>  
> David Monniaux            http://www.di.ens.fr/~monniaux
> Laboratoire d'informatique de l'École Normale Supérieure,
> Paris, France
> 
> 
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