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Re: Things you can't do in a signatured sub

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Dan Book
January 20, 2022 05:32
Re: Things you can't do in a signatured sub
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On Thu, Jan 20, 2022 at 12:20 AM Darren Duncan <>

> 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)


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