Re^4: Why callbacks?

So, all subrutines are in effect global? Huh.. I didn't know that.

-Pileofrogs

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Comment on Re^4: Why callbacks?

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Re^5: Why callbacks? by Fletch (Bishop) on Mar 30, 2007 at 17:41 UTC
Named subs all reside in the symbol table of the active package when they're declared (if the name is unqualified, that is; it's also possible to stick a sub into another package's namespace by fully qualifying the name: `sub Other::Package::foo { ... }`). It's also possible to get a sub which is only useable within a particular lexical scope by storing a coderef in a lexical scalar. `{ my $private_sub = sub { print "I'M IN UR SCOPE HIDIN UR LEXICALZ\n" } ## Can be called here $private_sub->( ); } ## Can't call it here` [download]	[reply] [d/l] [select]

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Re^5: Why callbacks?
by Fletch (Bishop) on Mar 30, 2007 at 17:41 UTC

Named subs all reside in the symbol table of the active package when they're declared (if the name is unqualified, that is; it's also possible to stick a sub into another package's namespace by fully qualifying the name: sub Other::Package::foo { ... }). It's also possible to get a sub which is only useable within a particular lexical scope by storing a coderef in a lexical scalar.

{
my $private_sub = sub { print "I'M IN UR SCOPE HIDIN UR LEXICALZ\n" }
## Can be called here
$private_sub->( );
}
## Can't call it here
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