From: "David A. Black" <dblack@...>
Date: 2007-11-11T02:24:55+09:00
Subject: Re: top-level methods and constants

Hi --

On Sun, 11 Nov 2007, Xavier Noria wrote:

> A couple of questions regarding the top-level environment of execution.
>
> * The Pickaxe says on page 376 that top-level methods are defined as private 
> instance methods of Object, whereas Ruby for Rails says on page 203 they are 
> private instance methods of the Kernel module. Which one is correct?

The Pickaxe is right. I believe it got fixed in later printings of
R4R, though. I can't remember what led to the original mistake -- I
think I misinterpreted some method-list output I was getting while
examining it all in irb, or something.

> * Which is the actual container of a top-level constant?

You may not want me to answer :-) But I do believe it's Object.

ruby -ve "A=1; Object::A; Kernel::A"
ruby 1.8.6 (2007-03-13 patchlevel 0) [i686-darwin8.10.1]
-e:1: uninitialized constant Kernel::A (NameError)

(plus a couple of void context warnings which don't matter)


David

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