class Haml::Compiler

def precompiled_with_ambles(local_names)

initializes to nil.
to avoid ordering issues with partial layouts in Rails. If not available,
Initializes to ActionView::OutputBuffer when available; this is necessary

Returns the precompiled string with the preamble and postamble. 
def precompiled_with_ambles(local_names)
  preamble = <<END.gsub("\n", ";")
n
nd Haml::Helpers
lout = @haml_buffer = Haml::Buffer.new(haml_buffer, #{options.for_buffer.inspect})
out = _hamlout.buffer
put_buffer = output_buffer ||= ActionView::OutputBuffer.new rescue nil
  postamble = <<END.gsub("\n", ";")
ecompiled_method_return_value}
re
l_buffer = @haml_buffer.upper if @haml_buffer
  preamble + locals_code(local_names) + precompiled + postamble
end