class Opal::Nodes::ArrayNode

def compile
  return push('[]') if children.empty?
  code, work = [], []
  children.each do |child|
    splat = child.type == :splat
    part  = expr(child)
    if splat
      if work.empty?
        if code.empty?
          code << fragment("[].concat(") << part << fragment(")")
        else
          code << fragment(".concat(") << part << fragment(")")
        end
      else
        if code.empty?
          code << fragment("[") << work << fragment("]")
        else
          code << fragment(".concat([") << work << fragment("])")
        end
        code << fragment(".concat(") << part << fragment(")")
      end
      work = []
    else
      work << fragment(", ") unless work.empty?
      work << part
    end
  end
  unless work.empty?
    join = [fragment("["), work, fragment("]")]
    if code.empty?
      code = join
    else
      code.push([fragment(".concat("), join, fragment(")")])
    end
  end
  push code
end