From: Eric Hodel <drbrain@...7.net>
Date: 2011-12-02T07:07:00+09:00
Subject: [ruby-core:41436] [ruby-trunk - Feature #5695] CoffeeScript "is" and "isnt" keywords


Issue #5695 has been updated by Eric Hodel.


=begin
This would break compatibility with RubyGems:

  $ egrep '\bis' lib/rubygems/package/tar_input.rb | grep -v '#'
      is = new io, security_policy
      yield is
      is.close if is
        is = zipped_stream entry
          Gem::Package::TarReader.new is do |inner|
          is.close if is
        is = StringIO.new(dis)
        is = StringIO.new(zis.inflate(entry.read))

=end

----------------------------------------
Feature #5695: CoffeeScript "is" and "isnt" keywords
http://redmine.ruby-lang.org/issues/5695

Author: Suraj Kurapati
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 


Hello,

Please add "is" and "isnt" keywords, which behave like the "==" and "!=" operators respectively, to Ruby.  These keywords come from the CoffeeScript language.  They are useful to prevent accidental assignment (forgetting a "=" in "==") and they preserve reading order, unlike inverted "if 5 == x" expressions known as "Yoda conditionals".

Thanks for your consideration.


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