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Postings from January 2022
2022-1-20 14:32 Dan Book <grinnz@gmail.com> wrote:
> On Thu, Jan 20, 2022 at 12:20 AM Darren Duncan <darren@darrenduncan.net>
> wrote:
>
>> On 2022-01-19 12:43 p.m., Alexander Hartmaier wrote:
>> > I have one sad example to add: defining a sub that is passed as a
>> callback to a
>> > module which doesn't document the (number of) arguments and call it in
>> different
>> > parts with a different number of arguments. Example I'm just dealing
>> with is
>> > Mojo::RabbitMQ::Client.
>> > In the end I gave up and didn't specify a signature to avoid exceptions
>> caused
>> > by the different number of arguments.
>>
>> So here's a question. The way signatures work now, if one puts "@" at
>> the end
>> of the signature, does that say silently accept but throw away the extra
>> arguments, or is there some way in a signature to say explicitly that you
>> take a
>> variable number of arguments and there is an array you can get "the rest"
>> in?
>
>
> ($arg, @rest)
>
> -Dan
>
Do you recommend the following code to the Perl users?
sub foo ($arg, @rest) {
my ($foo, $bar) = @rest;
}
Instead of
sub foo ($arg, $foo, $bar) {
}
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