module Sass::Files

def try_to_read_sassc(filename, compiled_filename, sha)
  return unless File.readable?(compiled_filename)
  File.open(compiled_filename, "rb") do |f|
    return unless f.readline("\n").strip == Sass::VERSION
    return unless f.readline("\n").strip == sha
    return Marshal.load(f.read)
  end
rescue EOFError, TypeError, ArgumentError => e
  Haml::Util.haml_warn "Warning. Error encountered while reading cache #{compiled_filename}: #{e}"
end