From: Dan Schmidt <dfan@...>
Date: 2001-10-31T02:14:38+09:00
Subject: [ruby-talk:23857] Re: RCR: Fun with attribute shortcuts solves RCR #3 and more

Gunnar Andersson <dff180@yahoo.com> writes:

| # file: AttrInitializer
| class Module
|    def attr_initializer(*attrs)
|       alist = plist = ""
|       attrs.each do |v|
|          alist += "@#{v},"     # >> @var1,@var2,@var3, ...
|          plist += "#{v},"      # >> var1,var2,var3, ...
|       end
|       alist.chop!; plist.chop! # Remove last comma 
|       class_eval "def initialize(#{plist}); #{alist} = #{plist}; end"
|    end
| end

Perhaps the generated initialize method could also check for the
presence of a initialize_more (or a better name, hopefully) method
and call it if it exists.

That way you could set a bunch of member variables automatically, and
then continue by doing other initialization such as setting other
derived variables.

-- 
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