$_ aliasing

from exegesis 4:

	In Perl 6, the current topic -- whatever its name and however
	you make it the topic -- is always aliased to $_.

and one of the examples is:


	for @list -> $next {	# iterate @list, aliasing each element to 
				# $next (and to $_)
		print if length > 10;
				# same as: print $next if length $next > 10
		%count{$next}++;
	}

but what if there are multiple bound variables like this example:


	for %phonebook.kv -> $name, $number {
		print "$name: $number\n"
	}

is $_ aliased to either/both/neither of the two topics? are those now
not topics but just aliased variables?

i must know the answer so i don't get drawn to the dark side of the source

uri

-- 
Uri Guttman  ------  uri@stemsystems.com  -------- http://www.stemsystems.com
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• $_ aliasing by Uri Guttman
• Re: $_ aliasing by Damian Conway