Bug #7152: Is the order of Module#instance_methods intended to be preserved?

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 1.9.3p286 (2012-10-12 revision 37165) [x86_64-darwin12.2.0]

[hasari (Hiro Asari)]

https://github.com/jruby/jruby/issues/277 asks this question:

results = 10000.times.map do
chars = ('A'..'Z').map(&:to_sym).shuffle

cls = Class.new do

chars.each do |chr|
  define_method(chr) {}
end

end

chars == cls.instance_methods.take(26)
end

p results.all?{|o|o.equal? true} # => true on MRI

[headius (Charles Nutter)]

I vote no! Imposing order upon the method table requires all implementations to use an ordered data structure here where unordered structures might serve better. Also consider that reflective method access on most other platforms does not guarantee any ordering.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

No.