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Re: where does the pure method defined when starting irb

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Christopher Dicely wrote in post #998250:
> On Thu, May 12, 2011 at 2:40 AM, Brian Xue <brxue.cn@gmail.com> wrote:
>>
>> def hello; end
>> =>nil
>>
>> then where is the method "hello" defined? within Object? but
>>
>> self.class.instance_methods.include? :hello
>> =>false
>
> Right, because its not defined as an instance method in the Object
> class, its defined as an instance method in the singleton class of the
> current object (main).
>
> So, in IRB for Ruby 1.8.7 after the above
>
> (class <<self; end).instance_methods.include? "hello"
> => true
>

Also:

puts RUBY_VERSION

x = class A
end

p x

x  = class <<self
end

p x

--output:--
1.9.2
nil
nil


===

-- 
Posted via http://www.ruby-forum.com/.

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Thread

where does the pure method defined when starting irb Brian Xue <brxue.cn@gmail.com> - 2011-05-12 04:40 -0500
  Re: where does the pure method defined when starting irb jake kaiden <jakekaiden@yahoo.com> - 2011-05-12 06:17 -0500
  Re: where does the pure method defined when starting irb Christopher Dicely <cmdicely@gmail.com> - 2011-05-12 09:57 -0500
    Re: where does the pure method defined when starting irb Michael Edgar <adgar@carboni.ca> - 2011-05-12 10:12 -0500
    Re: where does the pure method defined when starting irb 7stud -- <bbxx789_05ss@yahoo.com> - 2011-05-12 14:00 -0500
      Re: where does the pure method defined when starting irb Brian Xue <brxue.cn@gmail.com> - 2011-05-12 18:57 -0500
        Re: where does the pure method defined when starting irb 7stud -- <bbxx789_05ss@yahoo.com> - 2011-05-12 21:07 -0500
          Re: where does the pure method defined when starting irb Brian Xue <brxue.cn@gmail.com> - 2011-05-16 19:54 -0500
            Re: where does the pure method defined when starting irb Michael Edgar <adgar@carboni.ca> - 2011-05-16 20:00 -0500
              Re: where does the pure method defined when starting irb Brian Xue <brxue.cn@gmail.com> - 2011-05-16 21:24 -0500
      Re: where does the pure method defined when starting irb 7stud -- <bbxx789_05ss@yahoo.com> - 2011-05-12 18:58 -0500
  Re: where does the pure method defined when starting irb 7stud -- <bbxx789_05ss@yahoo.com> - 2011-05-12 13:21 -0500
  Re: where does the pure method defined when starting irb 7stud -- <bbxx789_05ss@yahoo.com> - 2011-05-12 13:53 -0500

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