Binding of a Method object?

ruby-talk
1

Hi,

some methods can be defined like so:

    class Test
      y = :hello
      define_method(:hello) { y }
    end

Can I get access to the bindings of the Test method object so i can
access and modify the 'y' variable?

    t = Test.new.method(:hello).send(:binding).eval('y')

and so on does not appear to work.

Thanks,

John

···

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2

Can't think of an easy way to do that, but does this help?

   class Test
     def self.define_method(name, &bl)
       (@procs||={})[name] = bl
       super
     end

     def self.eval_in_class_scope_around_method method, str
       eval str, @procs[method]
     end

     y = :hello_world
     define_method(:hello) { y }
   end

# t = Test.new.method(:hello).send(:binding).eval('y')

   p Test.eval_in_class_scope_around_method :hello, "y"

You can of course put the two class methods in a module and extend Test with it.

There is also binding_of_caller, but at least the above is fairly elementary ruby.

···

On 11/08/2010 06:58 PM, John Mair wrote:

Hi,

some methods can be defined like so:

     class Test
       y = :hello
       define_method(:hello) { y }
     end

Can I get access to the bindings of the Test method object so i can
access and modify the 'y' variable?

     t = Test.new.method(:hello).send(:binding).eval('y')

and so on does not appear to work.

3

Hehe, thanks. Not quite what i had in mind, but interesting nonetheless
:slight_smile: cheers

···

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