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Postings from October 1999
At 10:54 AM 10/26/99 +0200, Matthias Urlichs wrote:
>Hi,
>
>Tuomas J. Lukka:
>>
>> Actually, I think that maybe
>> $lock = lock $obj;
>> undef $lock;
>> would make a nice interface
>>
>That's somewhat nonintuitive, IMHO, because the current semantics of
>
> foo();
>
>are identical to
>
> { my $bar = foo(); }
>or
> my $bar = foo();
> $bar = undef;
>
>so the lock code would need some internal magic to determine whether its
>return value is going to be stored anywhere.
>
>Somehow I doubt that the current Perl core allows for this..?
Oh, sure. Check wantarray. It's undef in void context (like a plain lock
$foo) and false in scalar context. you can do it from within the core with
a quick macro check, though I don't remember which one at the moment.
Whether we want to do that or not is a separate question.
Dan
----------------------------------------"it's like this"-------------------
Dan Sugalski even samurai
dan@sidhe.org have teddy bears and even
teddy bears get drunk