coś nie tak

gistfile1.txt

"app.rb"
[1, 2, 3].each { |a| puts a }

"ruby2js.rb"

#!/usr/bin/ruby
# encoding: utf-8
require 'opal'

ruby_file = ARGV[0]
parser = Opal::Parser.new
open("#{File.basename(ruby_file,".rb")}.js", "w") do |stream|
  stream.puts parser.parse(File.read(ruby_file))
end

and i get
"app.js"

call
array
int
1
int
2
int
3
each
arglist
iter
lasgn
a
call

puts
arglist
lvar
a