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Postings from October 2005
Hi,
Mark Reed wrote:
> On 2005-10-10 13:36, "Ingo Blechschmidt" <iblech@web.de> wrote:
>> Under the proposal, a Pair object doesn't have any special
>> magic
>
> Right. So under this proposal, the "key => value" syntax is
> overloaded: in some contexts it creates a Pair object, and in others
> it assigns a value to a named parameter, and parentheses are the
> disambiguating mechanism to get
> the former behavior in the latter context. Meanwhile, a reference to
> a Pair object occurring in an argument list does not interact with the
> named-parameter mechanism at all.
Exactly.
> At least, not by default. It would be desirable to have a way to
> flatten a hash/list of Pairs/whatever in such a way that it *does* map
> key names to named parameters.
Yep:
foo *%hash; # keys of %hash taken as named parameters
foo *hash(@array_of_pairs);
# @array_of_pairs's pairs taken as named parameters
--Ingo
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