delete_matched

# File activesupport/lib/active_support/cache/memory_store.rb, line 103
      def delete_matched(matcher, options = nil)
        options = merged_options(options)
        instrument(:delete_matched, matcher.inspect) do
          matcher = key_matcher(matcher, options)
          keys = synchronize { @data.keys }
          keys.each do |key|
            delete_entry(key, options) if key.match(matcher)
          end
        end
      end