class RuboCop::AST::ProcessedSource

def initialize(source, ruby_version, path = nil, parser_engine: :parser_whitequark)
  parser_engine = parser_engine.to_sym
  unless PARSER_ENGINES.include?(parser_engine)
    raise ArgumentError, 'The keyword argument `parser_engine` accepts `parser_whitequark` ' \
                         "or `parser_prism`, but `#{parser_engine}` was passed."
  end
  # Defaults source encoding to UTF-8, regardless of the encoding it has
  # been read with, which could be non-utf8 depending on the default
  # external encoding.
  (+source).force_encoding(Encoding::UTF_8) unless source.encoding == Encoding::UTF_8
  @raw_source = source
  @path = path
  @diagnostics = []
  @ruby_version = ruby_version
  @parser_engine = parser_engine
  @parser_error = nil
  parse(source, ruby_version, parser_engine)
end