From: Craig Kim <craig@...>
Date: 2006-04-06T23:08:11+09:00
Subject: statistics module problem

Here's a code fragment from the statistics module from Ruby Forge. 

### code begins here ###
module Math
� module Statistics
��� VERSION = "2001_02_18"
��� def self.append_features(mod)
������� unless mod < Enumerable
����������� raise TypeError,
            "`#{self}' can't be included non Enumerable (#{mod})"
������� end
������� def mod.default_block= (blk)
����������� self.const_set("STAT_BLOCK", blk)
������� end
������� def mod.default_block
����������� defined?(self::STAT_BLOCK) && self::STAT_BLOCK
������� end
������� super
��� end
��� def default_block
������� @stat_block || type.default_block  ## <---????
��� end
��� def default_block=(blk)
������� @stat_block = blk
��� End
### code ends ###

When I run the test program, I get the following warning message:

   warning: Object#type is deprecated; use Object#class

So I replaced the line that reads "@stat_block || type.default_block" with
"@stat_block || class.default_block" and ran the same script and now I get
the following error message:

c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in `require__':
c:/ruby/lib/ruby/site_ruby/1.8/math/statistics.rb:162: syntax error
(SyntaxError)

        @stat_block || class.default_block
                             ^  from
c:/ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in
`require' from statistics-demo.rb:1

Please help me understand what "type.default_block" does?

Thank you,

--Craig