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Postings from September 2002
At 11:52 AM 9/29/02 +0200, Rafael Garcia-Suarez wrote:
>Michael G Schwern wrote:
> > On Sun, Sep 29, 2002 at 12:33:25AM +0200, Elizabeth Mattijsen wrote:
> > > So the typical use inside a module is to have:
> > >
> > > package Your::Module;
> > > use jit;
> > >
> > > in the source. And to place all subroutines that you want to be
> loadable on
> > > demand after the (first) __END__.
> >
> > I have a Clever Idea! The "put things after the __END__ block" hack has
> > always bothered me about AutoLoader style things. It would be interesting
> > if one could write their code normally and just put "use jit" at the
> top and
> > it worked. jit.pm would really be a source filter. The filter would
> simply
> > blow away all the code below "use jit" and install an AUTOLOAD
> routine. The
> > AUTOLOAD would then read from $INC{'Your/Module.pm'} rather than *DATA.
>I like this idea ! and you can even use "no jit;" to disable this feature
>for some chunks of code.
Hmmm.... If you really want to go the source filter way, I'd rather see it
implemented as an attribute to a subroutine:
sub name : jit { }
or something like that. That would give you the best granularity...
>I just don't like the name of the module. This is not a pragma, it's not
>lexically scoped.
It wouldn't be the only one... ;-) And actually, it is scoped to an
extent in that you can have multiple C<use jit> in an application:
use jit 'now';
use module1; # all subroutines loaded, including modules used in module1
use jit 'ondemand';
use module2; # no subroutines loaded, including modules used in module2
>Other names : Jit ? Filter::AutoLoad ? Acme::Defer ?
I think this is a basic functionality in Perl that warrants being a pragma.
Liz
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