From: Christopher Dicely <cmdicely@...>
Date: 2009-03-07T13:07:25+09:00
Subject: Re: Extending has for default value, can't get it to work

On Fri, Mar 6, 2009 at 7:22 PM, Jo Be <nous.placidus@gmail.com> wrote:
> http://pastie.org/409974
>
> When I instantiate MyHash.new I get an empty hash. Just not sure how to
> proceed.
>
> thanks

ruby 1.8.6 (2008-03-03 patchlevel 114) [i386-mswin32]

irb(main):001:0> class MyHash < Hash
irb(main):002:1> def initialize
irb(main):003:2> super
irb(main):004:2> self[:foo]="bar"
irb(main):005:2> end
irb(main):006:1> end
=> nil
irb(main):007:0> MyHash.new
=> {:foo=>"bar"}

Actually, I tried it your way out of curiosity, and:

irb(main):009:0> class MyOtherHash < Hash
irb(main):010:1> def initialize
irb(main):011:2> super
irb(main):012:2> merge!({:foo=>"bar"})
irb(main):013:2> end
irb(main):014:1> end
=> nil
irb(main):015:0> MyOtherHash.new
=> {:foo=>"bar"}