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Postings from February 2003
> > > Bleadperl or 5.8.0:
> > >
> > > $ ./perl -e 'local ${"FOO"}=1'
> > > Can't localize through a reference at -e line 1.
> > > $
> > >
> > > What reference where?
> > Ronald J Kimball <rjk@linguist.Thayer.dartmouth.edu>:
> > That's a symbolic reference, isn't it?
Syntactically yes, but semantically it isn't, all that needs to be
known about the variable name is known in compiletime. In other
words, I would have expected the above to be equivalent to ${FOO}
or $FOO.
> 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.
--
Jarkko Hietaniemi <jhi@iki.fi> http://www.iki.fi/jhi/ "There is this special
biologist word we use for 'stable'. It is 'dead'." -- Jack Cohen
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