Hi,
Juerd wrote:
> Ingo Blechschmidt skribis 2005-10-10 19:36 (+0200):
>> my @array = (42, "hi", (a => 23));
>
> It is worth pointing out that the inner parens here are merely for
> grouping: this information is lost afterwards, hence this:
>
>> foo [EMAIL PROTECTED]; # same as
>
> shouldn't be
>
>> foo 42, "hi", (a => 23); # three positional params (Int, Str,
>> Pair)
>
> but instead
>
> foo 42, "hi", a => 23 # two positional args, one named.
>
> OR pairs need to remember whether they were originally in parens. This
> is very doable, but whether we want or need it is very arguable.
Luckily, this is not needed, see my response to Dave [1]:
Because named arguments are purely syntactic (i.e., they are not objects
or some other kind of data type), you can't stuff them into an array
(or a scalar, for that matter).
# (assuming => binds thighter than =)
my $scalar = a => 1; # sugar for
my $scalar = (a => 1);
my @array = (42, a => 1); # sugar for
my @array = (42, (a => 1));
Named arguments can -- under the proposal -- only ever exist in calls.
--Ingo
[1] http://www.nntp.perl.org/group/perl.perl6.language/23438
