compile

# File activesupport/lib/active_support/parameter_filter.rb, line 60
      def self.compile(filters, mask))
        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 << Regexp.escape(item.to_s)
          end
        end

        deep_regexps = regexps.extract! { |r| r.to_s.include?("\\.") }
        deep_strings = strings.extract! { |s| s.include?("\\.") }

        regexps << Regexp.new(strings.join("|"), true) unless strings.empty?
        deep_regexps << Regexp.new(deep_strings.join("|"), true) unless deep_strings.empty?

        new regexps, deep_regexps, blocks, mask: mask
      end