From: Martin Hart <martin@...>
Date: 2003-01-08T23:11:22+09:00
Subject: Re: Can you detect if a method takes a block argument?


On 1/8/03, 1:50:47 PM, ts <decoux@moulon.inra.fr> wrote regarding Re: Can 
you detect if a method takes a block argument?:

> >>>>> "M" == Martin Hart <martin@zsdfherg.com> writes:

> M> Is there a way to tell whether or not a method takes a block argument?

>  Briefly, no.

>  For example, Array#sort can be used with or without a block.

Thanks for the information Guy,

So the only way to accomplish what I want is to have all of the methods 
that I might call be able to take a block and work sensibly whether or 
not it is given, (like Array#sort).  That's not something that I want to 
do - I think it will pollute the design too much.  Guess I'll rethink :-)

PS - When you say "Briefly, no" (as opposed to just "No"), does that mean 
that it might be possible (without hacking Ruby itself I mean) :-)

Cheers
Martin