Track usage by strategy

Author: cocoahero

lib/graphql/schema/field/default_resolver_tracker.rb

@@ -5,17 +5,22 @@ class Schema
     class Field
       class DefaultResolverTracker
         attr_reader :counts_by_field
+        attr_reader :strategy_by_field
 
         def initialize
           @counts_by_field = Hash.new do |h, k|
             h[k] = Hash.new do |h2, k2|
               h2[k2] = 0
             end
           end
+          @strategy_by_field = Hash.new do |h, k|
+            h[k] = Set.new
+          end
         end
 
         def track(field, strategy)
           @counts_by_field[field.path][strategy] += 1
+          @strategy_by_field[strategy] << field.path
         end
       end
     end