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Postings from February 2003
Enache Adrian <enache@rdslink.ro>:
> > > Mark-Jason Dominus:
> > > Perhaps the best way to address this would be to extend the peephole
> > > optimizer to optimize ${"COMPILE_TIME_CONSTANT"} to
> > > $COMPILE_TIME_CONSTANT.
> >
> > Yup, something like that.
>
> This cannot go without making lexical variables accessible through
> symbolic references.
>
> I don't think it would be acceptable that '$a="b"; $$a' and '${"b"}'
> work differently ( since ${"b"} would be optimized to $b, it will
> access the lexical in the first place, unlike $$a ).
No, it will not. It will do what it is programmed to do; it should be
easy to arrange for ${"b"} to be optimized to access the global
variable $b regardless of whether there is a lexical $b in scope or
not.
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