Mark J. Reed wrote:
> Oh, wow. I was just asking about the spec; didn't know this stuff
> already worked. Rakudos to the team! :)
Actually there's quite much that works in Rakudo, even if some corner
cases are missing or error messages might benefit from more verbosity.
Especially in the area o
Oh, wow. I was just asking about the spec; didn't know this stuff
already worked. Rakudos to the team! :)
On Wed, Mar 10, 2010 at 9:18 AM, Carl Mäsak wrote:
> Mark (>):
>> Does the unpacking participate in dispatch? If a Hash comes in as $t
>> with no 'left' key, will it fail to match?
>
> Yes
Mark (>):
> Does the unpacking participate in dispatch? If a Hash comes in as $t
> with no 'left' key, will it fail to match?
Yes.
$ perl6 -e 'sub foo(%h($left)) { say $left }; foo({ left => "OH HAI" })'
OH HAI
$ perl6 -e 'sub foo(%h($left)) {}; foo({ no => "left key" })'
Not enough positional
Does the unpacking participate in dispatch? If a Hash comes in as $t
with no 'left' key, will it fail to match?
On Tuesday, March 9, 2010, Little Walker wrote:
>> Which is pretty powerful, really.
>
> Absolutely - I think you're referring to the 'type subset' stuff which
> is great.
>
>> This i
> Which is pretty powerful, really.
Absolutely - I think you're referring to the 'type subset' stuff which
is great.
> This is where Perl 6 is not the same as functional
> languages, since it's got an imperative OO element as well.
True, there can be friction between the functional style and OO,
> That's almost exactly the example from:
>
> http://perlcabal.org/syn/S06.html#Unpacking_tree_node_parameters
1. I feel incredibly embarrassed to have missed this
2. This is awesome!
Hi,
Little Walker wrote:
> I've been looking around to see if there's been any discussion of
> introducing functional programming-style pattern matching for method/
> function dispatch. Could someone point me to any such discussions?
It's done multi dispatch in Perl 6, and you can find an introd
On Tue, 9 Mar 2010, Daniel Ruoso wrote:
Em Seg, 2010-03-08 às 12:45 -0800, Little Walker escreveu:
I've been looking around to see if there's been any discussion of
introducing functional programming-style pattern matching for method/
function dispatch. Could someone point me to any such discu
Em Seg, 2010-03-08 às 12:45 -0800, Little Walker escreveu:
> I've been looking around to see if there's been any discussion of
> introducing functional programming-style pattern matching for method/
> function dispatch. Could someone point me to any such discussions?
a Tree matching language is o
On Mon, Mar 08, 2010 at 12:45:44PM -0800, Little Walker wrote:
: Hi there,
:
: I've been looking around to see if there's been any discussion of
: introducing functional programming-style pattern matching for method/
: function dispatch. Could someone point me to any such discussions?
Why settle
I think the closest things we've got to pattern matching come from a
combination of multiple dispatch, where clauses and signature
unpacking. I don't know much about the latter, but a where clause can
discriminate multiple dispatch variants based on parameter values
rather than just the type, so yo
Hi there,
I've been looking around to see if there's been any discussion of
introducing functional programming-style pattern matching for method/
function dispatch. Could someone point me to any such discussions?
I've seen that perl6 is taking on a lot of ideas from the functional
world (lazy ev
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