On Tue, 7 Aug 2001 15:34:44 +0300 (EET DST), Ilmari Karonen wrote:
>The stable cases also correspond exactly to the behavior you would get
>if you defined your constants manually like this:
>
> sub CONSTANT_A () { return (); }
Actually, if you look at the source for constant.pm, you see it acts
like
*CONSTANT_A = sub () {};
which is basically the same thing.
(lines 89 through 97 in my copy, that came with 5.6.1)
BTW can anybody explain how the "magic" works? I mean: how comes that in
use constant DEBUG => 0;
if(DEBUG) {
.... # things to do when debugging)
}
that the if-block is supposed to be stripped from the compiled program,
as if DEBUG was replaced with a literal 0? Is the compiler so smart that
it recognizes a sub that returns a constant? It'd almost have to be that
way.
--
Bart.
