# File lib/pilfer/profiler.rb, line 15
    def profile_files_matching(matcher, description = nil,
                               reporter_options = {},
                               profiler = method(:lineprof),
                               start = Time.now, &app)
      app_response = nil
      profile = profiler.call(matcher) do
        app_response = app.call
      end
      reporter.write profile, start, description, reporter_options
      app_response
    end