From: Sean O'Dell <sean@...>
Date: 2004-08-28T05:00:00+09:00
Subject: Re: Method name to method object

On Friday 27 August 2004 12:50, Mauricio Fern�ndez wrote:
> On Sat, Aug 28, 2004 at 04:42:40AM +0900, Sean O'Dell wrote:
> > I want to obtain method objects given their string names.  I can't figure
> > out how to get the method object for MyMethod::mymeth given the string
> > name "MyMethod::mymeth".  I don't know the name of the module in advance,
> > or even if any was given (or even how many levels of modules deep the
> > method is), so I can't use something like MyMethod::method("mymeth").
> >
> > How does one do that?
> >
> >> module A; module B; def self.foo; "foo" end end end
>
> => nil
>
> >> def get_smethod(str); a=str.split(/::/); m=a.pop;
> >> a.inject(Object){|s,x|s.const_get(x)}.method(m) end
>
> => nil
>
> >> get_smethod("A::B::foo").call
>
> => "foo"
>
> You might want to use '.foo' and split on /\./ to get the method...

Works very well, thank you.  I didn't realize that module/class nestings were 
accessible as constants.

 Sean O'Dell