From: Derek Chesterfield <dez@...>
Date: 2005-09-24T19:30:52+09:00
Subject: self.puts?

I am trying to convince myself that Ruby is fully OO [I'm not  
suggesting it isn't!].

So writing 'object.method' sends a message 'method' to 'object', and  
writing 'method' implies sending to self. So how come the result of  
'puts' is different to the result of 'self.puts'?

> $ irb
> irb(main):001:0> puts "hello"
> hello
> => nil
> irb(main):002:0> self.puts "hello"
> NoMethodError: private method `puts' called for main:Object
>         from (irb):2

I'm sure this is a semantic question, but I can't figure it out! How  
come 'self.puts' find the private puts method of Object, whereas  
'puts' finds Kernel.puts?