From: ThoML <micathom@...>
Date: 2008-02-28T00:19:55+09:00
Subject: Question about how ruby sources is parsed

Hi,

I recently came came up with this piece of (monkey-inspired) code:

    class String0 < String
        def foo
            123
        end
    end

    Object.send :remove_const, :String
    String = String0

This makes the following two statements work as intended:

    p String0.new("foo").foo # => 123
    p String.new("foo").foo # => 123

The following doesn't work though:

    p "foo".foo
    p eval %{"foo".foo}

    undefined method `foo' for "foo":String (NoMethodError)

Has somebody an idea if it is possible to make the ruby parser use
the
new String class somehow? I assume there is no way to make this work
but
then: I'd be happy if somebody proves me wrong.

Regards,
Thomas.