From: Logan Capaldo <logancapaldo@...>
Date: 2006-01-18T09:41:44+09:00
Subject: Re: invalid_arity method similar to method missing ?


On Jan 16, 2006, at 7:06 PM, Didier Prophete wrote:

> all,
>
> Is there a function similar to method_missing when an existing  
> method is
> called with the wrong number of arguments ?
>
> Suppose I have a class:
>     class MyClass
>        def my_func(var1, var2)
>       end
>     end
>
> And then I end up calling:
>     MyClass.new.my_func
>
> As expected, I end up getting an ArgumentError exception ('wrong  
> number
> of arguments...). Is there a way to catch these... something like a
> 'method_missing' (method_missing doesn't get called since the method
> exists...), but which would work for wrong number of arguments.
>
> -Didier
>
> ps: obviously, for simple problems, I could end up using some default
> argument values, but it won't work for the (real and more complex)
> problem I am trying to solve...
>
> -- 
> Posted via http://www.ruby-forum.com/.
>


you could let your function be called with any number of arguments  
and  then worry about it. Probably not what you were looking for though.

eg

def my_func(*args)
        var1, var2 = *args
        ...
end