From: Joey Gibson <joey@...>
Date: 2003-08-22T21:11:53+09:00
Subject: Re: Wrapping ENV

On Fri, 22 Aug 2003 07:15:33 +0900, "Sean O'Dell"
<sean@cSePlsoAfMt.com[REMOVE_THE_SPAM]> wrote:

||| That's pretty useful!  Why not generalize it though:
||| 
||| class Record
|||    def initialize(source)
|||      source.to_hash.each do |name, value|
|||        method_name = name.downcase
|||        define_method(method_name) { source[name] }

Why not make use of method_missing instead of defining methods for each
existing variable? The following code will work for existing variables as
well as let you add new ones.

class MyEnv
    def method_missing(symbol, *args)
        str = symbol.id2name

        if args.length == 0
            ENV[str]
        else
            ENV[str] = args[0].to_s
        end
    end
end

e = MyEnv.new
e.foo 23
e.foo => 23
e.path(e.path + "/tmp")
e.path => "...:/tmp"



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