(also: ask questions in StackOverflow whenever possible :-) )
El mar., 12 jun. 2018 a las 9:09, JJ Merelo (<[email protected]>) escribió:
> Use binding:
>
> my @x= <1 2 3>; my @y := @x but Iterable; say @y.^name; # OUTPUT:
> «Array+{Iterable}»
>
> El mar., 12 jun. 2018 a las 9:06, Joseph Brenner (<[email protected]>)
> escribió:
>
>> I thought this would work to make a copy of @x but with the role
>> "LookInside" attached to it:
>>
>> my @y = @x but LookInside;
>>
>> But that didn't add the role to @y. E.g.
>>
>> say @y.^WHAT
>>
>> Would just report (Array), not (Array+{LookInside}).
>>
>> I found that this would do what I was trying to do though:
>>
>> my @y = @x;
>> @y does LookInside;
>>
>> I didn't think there would be any difference between the two
>> though. What am I not getting?
>>
>> The full code looks like this:
>>
>> trial_introspect.pl6:
>>
>> use v6;
>> use Trial::Introspect;
>> my @x = <wuhn tew thuree foah fahv sex>;
>> my @y = @x;
>> @y does LookInside;
>> say "Methods: ";
>> say @y.methodical_methods;
>>
>>
>> .../Trial/Introspect.pm6:
>>
>> role LookInside {
>> method methodical_methods {
>> self.^methods.map({ .gist }).sort.unique.map({ "$_\n" }).grep({
>> ! /^Method/ });
>> }
>> }
>>
>
>
> --
> JJ
>
--
JJ
