instance method value

# File activesupport/lib/active_support/cache.rb, line 575
      def value
        # If the original value was exactly false @value is still true because
        # it is marshalled and eventually compressed. Both operations yield
        # strings.
        if @value
          # In rails 3.1 and earlier values in entries did not marshaled without
          # options[:compress] and if it's Numeric.
          # But after commit a263f377978fc07515b42808ebc1f7894fafaa3a
          # all values in entries are marshalled. And after that code below expects
          # that all values in entries will be marshaled (and will be strings). 
          # So here we need a check for old ones.
          begin
            Marshal.load(compressed? ? Zlib::Inflate.inflate(@value) : @value)
          rescue TypeError
            compressed? ? Zlib::Inflate.inflate(@value) : @value
          end
        end
      end