lib/racecar/instrumenter.rb in racecar-2.0.0 vs lib/racecar/instrumenter.rb in racecar-2.1.0

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 module Racecar
   ##
   # Common API for instrumentation to standardize
   # namespace and default payload
   #
@@ -9,9 +11,11 @@
 
     def initialize(default_payload = {})
       @default_payload = default_payload
 
       @backend = if defined?(ActiveSupport::Notifications)
+        # ActiveSupport needs `concurrent-ruby` but doesn't `require` it.
+        require 'concurrent/utility/monotonic_time'
         ActiveSupport::Notifications
       else
         NullInstrumenter
       end
     end