Getting a method object directly from a module

ruby-talk
1

Hi all,

Is it possible to get a method object from a Module directly? This
doesn't work:

module Foo
   def my_method
   end
end

method = Foo.method(:my_method)
=> NameError: undefined method `my_method' for class `Module'

Is there a way to do what I mean?

Regards,

Dan

2

irb(main):001:0> module M
irb(main):002:1> def m
irb(main):003:2> end
irb(main):004:1> end
=> nil
irb(main):005:0> M.instance_method(:m)
=> #<UnboundMethod: M#m>

Kent.

···

On 6/9/05, Daniel Berger <djberg96@hotmail.com> wrote:

Hi all,

Is it possible to get a method object from a Module directly? This
doesn't work:

module Foo
   def my_method
   end
end

method = Foo.method(:my_method)
=> NameError: undefined method `my_method' for class `Module'

Is there a way to do what I mean?

Regards,

Dan

3

Or if you want to be able to call the method:

m = Object.new.extend(Foo).method(:my_method)

Ryan

Kent Sibilev said:

···

irb(main):001:0> module M
irb(main):002:1> def m
irb(main):003:2> end
irb(main):004:1> end
=> nil
irb(main):005:0> M.instance_method(:m)
=> #<UnboundMethod: M#m>

Kent.

4

Ryan Leavengood wrote:

Or if you want to be able to call the method:

m = Object.new.extend(Foo).method(:my_method)

Ryan

Kent Sibilev said:
> irb(main):001:0> module M
> irb(main):002:1> def m
> irb(main):003:2> end
> irb(main):004:1> end
> => nil
> irb(main):005:0> M.instance_method(:m)
> => #<UnboundMethod: M#m>
>
> Kent.

That works great. Thanks both.

Dan

5

Or you can bind unbound method:

  Foo.instance_method(:my_method).bind(obj).call

              matz.

···

In message "Re: Getting a method object directly from a module" on Fri, 10 Jun 2005 04:07:05 +0900, "Ryan Leavengood" <mrcode@netrox.net> writes:

Or if you want to be able to call the method:

m = Object.new.extend(Foo).method(:my_method)