class RuboCop::Cop::Style::FileRead

def on_send(node)
  evidence(node) do |filename, mode, read_node|
    message = format(MSG, read_method: read_method(mode))
    add_offense(read_node, message: message) do |corrector|
      range = range_between(node.loc.selector.begin_pos, read_node.source_range.end_pos)
      replacement = "#{read_method(mode)}(#{filename.source})"
      corrector.replace(range, replacement)
    end
  end
end