module Unparser::Writer

def round_trips?(source:)
  parser = Unparser.parser
  local_variable_scope.local_variables_for_node(node).each do |local_variable|
    parser.declare_local_variable(local_variable)
  end
  buffer = Buffer.new
  buffer.write_encoding(explicit_encoding) if explicit_encoding
  buffer.write(source)
  node.eql?(parser.parse(Unparser.buffer(buffer.content)))
rescue Parser::SyntaxError
  false
end