From: 7stud -- <bbxx789_05ss@...>
Date: 2011-08-26T11:27:05+09:00
Subject: Re: calling a descendant's method

Alexey Muranov wrote in post #1018528:
> No it returns "Hoho"!
> Now i am confused...

ruby moves up the inheritance hierarchy until it finds f():

   def f
      g()
    end

f() executes and inside f() ruby finds the statement:

    g()


ruby must call all methods with an object, and if you don't specify the 
object that is calling the method, then ruby uses self.  So g() is 
equivalent to:

   self.g()


What is self?  self is the object that called the method.  What object 
called the method?  An instance of B called f(), so inside f() self='the 
B instance'.  That means self.g is equivalent to:


  'the b instance'.g()


So ruby checks the B class for a method called g().

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