Re: Re: Handy Algorithm For Using B::Generate

B::SPECIAL objects are instances of pointers to the perl global invariants, PL_sv_undef, PL_sv_yes, and PL_sv_no. You were seeing one of those.

Comment on Re: Re: Handy Algorithm For Using B::Generate

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Re: Re: Re: Handy Algorithm For Using B::Generate by stvn (Monsignor) on Jan 26, 2004 at 04:16 UTC
You guys wouldn't happen to know how to fetch the scalar value associated with a B::GV object too would you? Looking at the results from Devel::Peek::Dump($a), it would seem to me that the GV -> GP -> SV would be the pathway to the SV (and its eventual value), but there is no GP method for the B::GV object. I am sure I am just missing something very obvious here, but I can't seem to resolve this. All I can seem to get when I call B::GV->SV is a B::NULL object, which makes no sense. Am I just running into the optimizer here? Okay, going to bed now with visions of op-code trees dancing in my head. Should make for some interesting dreams. -stvn	[reply]
Re: Re: Re: Re: Handy Algorithm For Using B::Generate by diotalevi (Canon) on Jan 26, 2004 at 04:46 UTC
Re: Magic (Re: Re: Discovering the lvaluable function behind the reference) included here. From B, you get a GV's SV by going ->SV. Just because you got a null SV doesn't mean that its the wrong answer.	[reply]
Re: Re: Re: Re: Re: Handy Algorithm For Using B::Generate by stvn (Monsignor) on Jan 26, 2004 at 12:58 UTC
diotalevi Excellend set of links, I especially like the PerlGuts illustrated (i'm a very visual person, so i like diagrams of data structures alot). Thanks much. - stvn	[reply]