Proxy class / little factory

ruby-talk
1

Hi,

maybe someone can help me. i am trying to make a class such that when it
is used it acts like one or another class based on an attribute. i wrote
this little factory version:
(snip)
this could work (i actually haven’t run it) but the problem is that the
type of the object returned is not Text, but TextSingle or TextMultiple.
i need it to be Text. eg.

atext = Text.new(1)
p atext.class # --> TextSingle

for it it needs to be:

p atext.class # --> Text

suggestions?

First, which do you want, an instance of distinct classes, or
one of a particular class?

What about these? :wink:

class Text
class TextSingle; def class; Text end end
class TextMultiple; def class; Text end end
end

or

class Text
class TextSingle; def self.to_s; “Text” end end
class TextMultiple; def self.to_s; “Text” end end
end

···

At Tue, 27 Aug 2002 12:01:25 +0900, Tom Sawyer wrote:

–
Nobu Nakada