From: "Eregon (Benoit Daloze)" <redmine@...>
Date: 2012-11-16T08:19:34+09:00
Subject: [ruby-core:49397] [ruby-trunk - Bug #7349] Struct#inspect needs more meaningful output


Issue #7349 has been updated by Eregon (Benoit Daloze).


It might be worth pointing out that this should not happen if the Struct generated class is assigned to a constant (and so one level of inheritance is not unused):

Point = Struct.new(:x, :y) do
  def distance
    Math.hypot(x,y)
  end
end

----------------------------------------
Bug #7349: Struct#inspect needs more meaningful output
https://bugs.ruby-lang.org/issues/7349#change-32944

Author: postmodern (Hal Brodigan)
Status: Open
Priority: Low
Assignee: 
Category: core
Target version: next minor
ruby -v: ruby 2.0.0dev (2012-11-01 trunk 37411) [x86_64-linux]


When inheriting directly from Struct.new, Class#ancestors shows a meaningless anonymous Class:

    class Point < Struct.new(:x, :y)

      def distance
        ((x ** 2) + (y ** 2)) ** 0.5
      end

    end

    Point.ancestors
    # => [Point, #<Class:0x007fe204a1a228>, Struct, Enumerable, Object, Kernel, BasicObject]

Perhaps, the anonymous Class could list the Struct's fields?

    #<Class:x, y>



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