Andrew Marshall amarshall

## changes.md

      
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                funny-falcon
                / changes.md
            
            
              Last active
              March 23, 2024 05:53
            
              
                Performace patch for ruby-1.9.3-p327
              
          
    Changes:


this version includes backport of Greg Price's patch for speedup startup http://bugs.ruby-lang.org/issues/7158 .
ruby-core prefers his way to do thing, so that I abandon cached-lp and sorted-lf patches of mine.


this version integrates 'array as queue' patch, which improves performance when push/shift pattern is heavily used on Array.
This patch is accepted into trunk for Ruby 2.0 and last possible bug is found by Yui Naruse.
It is used in production* for a couple of months without issues even with this bug.


## raskell.rb
$stack, $draws = [], {}

def method_missing *args
  return if args[0][/^to_/]
  $stack << args.map { |a| a or $stack.pop }
  $draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :<
end

class Array
  def +@
	$stack, $draws = [], {}

	def method_missing *args
	return if args[0][/^to_/]
	$stack << args.map { \|a\| a or $stack.pop }
	$draws[$stack.pop(2)[0][0]] = args[1] if args[0] == :<
	end

	class Array
	def +@