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Postings from July 2002
On Mon, 2002-07-29 at 17:12, Simon Glover wrote:
> I think you forgot to attach the patch...
oops, now the files are attached ...
- patch: lex.patch
- test file: lexicals.t
- example file: lexicals.pasm
On Tue, 2002-07-30 at 02:14, Stephen Rawls wrote:
> --- Jonathan Sillito
> > close_lex # end of nested lexical scope
> >
> > find_lex P3, "a"
> > print P3 # prints 12
> > print "\n"
> > end
> >
>
> That's a typo, right? It should print the first value
> of "a" (10). Just making sure I'm not crazy ...
Hey, thanks for reading this over. It is not a typo, but it may be
incorrect. My code does overwrite previous lexicals in enclosing scopes
(i.e. lexicals in pads lower on the stack), but maybe I have the
semantics of the store_lex op wrong? The following example shows what I
had in mind:
my $x = 13;
sub foo
{
$x = 12;
}
foo();
print $x; # prints 12
The alternative (what you have in mind I guess) is:
my $x = 13;
sub foo
{
my $x = 12; # notice the my
}
foo();
print $x; # prints 13
So I guess I see your point. Let me know if I should change the
implementation (it would be a quick change). Also note that there is
currently no support for accessing lexicals by index or for creating
pads from descriptors.
Thanks for any comments.
--
Jonathan Sillito