def precompiled
      encoding = Encoding.find(@encoding || '')
      return @precompiled.dup.force_encoding(encoding) if encoding == Encoding::ASCII_8BIT
      return @precompiled.encode(encoding)
    end
def precompiled
      encoding = Encoding.find(@encoding || '')
      return @precompiled.dup.force_encoding(encoding) if encoding == Encoding::ASCII_8BIT
      return @precompiled.encode(encoding)
    end
The source code that is evaluated to produce the Haml document.

 This is automatically converted to the correct encoding
 (see {file:REFERENCE.md#encodings the `:encoding` option}).

 @return [String]