Re: POE and $_[KERNEL]

The $_[KERNEL] is just an indexed access to @_ using the predefined constant KERNEL - using the constants like this allows for one thing POE to not have to document explicitly the order in which all of the arguments are passed to the method.

Update: frodo72 pointed me to http://poe.perl.org/?POE_FAQ/calling_convention that explains this rather nicely.

/J\

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Re^2: POE and $_[KERNEL] by talexb (Chancellor) on Sep 06, 2005 at 18:04 UTC
D'Oh! Of course, `$_[some index here]` is just Perl accessing the `@_` array. And I already know that `KERNEL` is a constant -- defined as a simple function in POE::Session. Sorry, that was a somewhat lame question -- for some reason I thought it was doing some wonderfully dark magic that wasn't even in the Camel. Phew. Alex / talexb / Toronto "Groklaw is the open-source mentality applied to legal research" ~ Linus Torvalds	[reply] [d/l] [select]

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Re^2: POE and $_[KERNEL]
by talexb (Chancellor) on Sep 06, 2005 at 18:04 UTC

D'Oh! Of course, $_[some index here] is just Perl accessing the @_ array. And I already know that KERNEL is a constant -- defined as a simple function in POE::Session.

Sorry, that was a somewhat lame question -- for some reason I thought it was doing some wonderfully dark magic that wasn't even in the Camel. Phew.

Alex / talexb / Toronto

"Groklaw is the open-source mentality applied to legal research" ~ Linus Torvalds

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