1 files changed, 40 insertions, 0 deletions
diff --git a/rubocop/cop/graphql/graphql_name_position.rb b/rubocop/cop/graphql/graphql_name_position.rb
new file mode 100644
index 00000000000..f18d65588cc
--- /dev/null
+++ b/rubocop/cop/graphql/graphql_name_position.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+# This cop ensures that if a class uses `graphql_name`, then
+# it's the first line of the class
+#
+# @example
+#
+#   # bad
+#   class AwfulClass
+#     field :some_field, GraphQL::Types::JSON
+#     graphql_name 'AwfulClass'
+#   end
+#
+#   # good
+#   class GreatClass
+#     graphql_name 'AwfulClass'
+#     field :some_field, GraphQL::Types::String
+#   end
+
+module RuboCop
+  module Cop
+    module Graphql
+      class GraphqlNamePosition < RuboCop::Cop::Cop
+        MSG = '`graphql_name` should be the first line of the class: '\
+              'https://docs.gitlab.com/ee/development/api_graphql_styleguide.html#naming-conventions'
+
+        def_node_search :graphql_name?, <<~PATTERN
+          (send nil? :graphql_name ...)
+        PATTERN
+
+        def on_class(node)
+          return unless graphql_name?(node)
+          return if node.body.single_line?
+
+          add_offense(node, location: :expression) unless graphql_name?(node.body.children.first)
+        end
+      end
+    end
+  end
+end