From: Jo Be <nous.placidus@...>
Date: 2009-03-07T13:26:08+09:00
Subject: Re: Extending has for default value, can't get it to work

Christopher Dicely wrote:
> 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"}

I don't know what I'm dong wrong but I'm not getting anything from 
either:

$ irb
>> class MyHash < Hash
>> 
?>         def intialize
>>             super
>>             self[:foo] = "bar" #merge!({:foo =>"bar" })
>>             
?>         end
>>     end
=> nil
>> MyHash.new
=> {}
>> 
?> class MyHash2 < Hash
>> 
?>         def intialize
>>             super
>>             self[:foo] = "bar" #merge!({:foo =>"bar" })
>>             
?>         end
>>     end
=> nil
>> MyHash2.new
=> {}
>> 




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