Thank you, moritz, for your explanation, and in the process, for introducing me to several aspects of Perl6 I was unfamiliar with.

I am indeed seeking to build an indefinite list of closures, each one having an incremented value of $n. If this seems an odd request, then rest assured it's only because I've rendered this as an isolated, simplified problem for posting here; the more complex application uses an analogous data structure in an elemental way.

Your first suggestion...

my @blocks := (0..*).map: -> $n { -> $x, $y { $x * $y * $n } };

[download]

...seems just right, but it hangs rakudo-star-2012.04.

Your second suggestion...

sub gen($x, $y) { state $n = 0; $x*$y*$n++ }
my @foo := &gen  xx *;

[download]

...is, as you suggested, not what I'm looking for, because I want $n to reflect the ordinal position in the series, not the ordinal call order of the closure.

Your third suggestion...

my @foo := sub ($x, $y) { state $n = 0; $x*$y*$n++ } xx *;

[download]

...gives every element of @foo the same ordinal position in the series (0), and re-accessing @foo[0], say, increments $n for @foo[0]'s closure, whereas I want it to be static indicator of ordinal position in the series.

Given what you said about the sequence operator (...) trying to invoke my closure, I realized that what I need is the equivalent of prime (') in CL/Scheme, and to properly scope the ordinal incrementor $n.

So this is my solution...

my @foo = { state $n=-1; $n++; sub ($x,$y) { $x+$y+$n } } ... *;

[download]
...which when accessed in the following manner... 
for 0..2 -> $i {
   for 0..2 {
      say @foo[$i](3,5);
   }
   say;
}

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...will produce the following output... 
8
8
8

9
9
9

10
10
10

[download]

In reply to Re^2: Perl6 lazy list of code blocks by aes
in thread Perl6 lazy list of code blocks by aes

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