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Bug #7152

closed

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

Added by hasari (Hiro Asari) over 11 years ago. Updated over 11 years ago.

Status:
Closed
Assignee:
-
Target version:
-
ruby -v:
ruby 1.9.3p286 (2012-10-12 revision 37165) [x86_64-darwin12.2.0]
Backport:
[ruby-core:47950]

Description

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

Updated by headius (Charles Nutter) over 11 years ago

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.

Updated by nobu (Nobuyoshi Nakada) over 11 years ago

  • Status changed from Open to Closed

No.

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