compile

# File actionpack/lib/action_dispatch/http/parameter_filter.rb, line 21
        def self.compile(filters)
          return lambda { |params| params.dup } if filters.empty?

          strings, regexps, blocks = [], [], []

          filters.each do |item|
            case item
            when Proc
              blocks << item
            when Regexp
              regexps << item
            else
              strings << item.to_s
            end
          end

          regexps << Regexp.new(strings.join('|'), true) unless strings.empty?
          new regexps, blocks
        end