[Melbourne-pm] Nested maps returning hash references

[Andrew Pam]

On 05/10/11 16:34, Toby Corkindale wrote:
> OK, this is doing my head in.
> 
> I have two map functions that work perfectly well on their own:
> 
> map {
>   $f->can($_) ? ($_ => $f->$_) : ()
> } qw (label name html);
> 
> map {
>   {
>     label => $f->label,
>     name => $f->name,
>     html => $f->html,
>   }
> } @fields;
> 
> 
> However when I combine them, it all goes pear-shaped, and I just get
> back one huge, flat array, rather than an array of hashes.
> 
>    map {
>        my $f = $_;
>        {
>            map {
>                $f->can($_) ? ($_ => $f->$_) : ()
>            } qw(label name html);
>        }
>    } @fields;
> 
> 
> Any thoughts?

Actually looking more closely, the braces around the inner map in the
final example look like they're being interpreted as a block, not as an
anonymous hash constructor.

Hope that helps,
		Andrew
-- 
Andrew Pam <andrew at sericyb.com.au>
Serious Cybernetics