interfaces_field.rb in graphql-1.1.0

- old
+ new

@@ -1,4 +1,10 @@
 GraphQL::Introspection::InterfacesField = GraphQL::Field.define do
   type -> { types[!GraphQL::Introspection::TypeType] }
-  resolve ->(target, a, c) { target.kind.object? ? target.interfaces : nil }
+  resolve ->(target, a, ctx) {
+    if target.kind == GraphQL::TypeKinds::OBJECT
+      ctx.warden.interfaces(target)
+    else
+      nil
+    end
+  }
 end