lib/graphql/language/printer.rb in graphql-2.0.6 vs lib/graphql/language/printer.rb in graphql-2.0.7

@@ -265,15 +265,19 @@
         description = indent != '' && !first_in_block ? "\n".dup : "".dup
         description << GraphQL::Language::BlockString.print(node.description, indent: indent)
       end
 
       def print_field_definitions(fields)
-        out = " {\n".dup
-        fields.each.with_index do |field, i|
-          out << print_description(field, indent: '  ', first_in_block: i == 0)
-          out << "  #{print_field_definition(field)}\n"
+        if fields.empty?
+          ""
+        else
+          out = " {\n".dup
+          fields.each.with_index do |field, i|
+            out << print_description(field, indent: '  ', first_in_block: i == 0)
+            out << "  #{print_field_definition(field)}\n"
+          end
+          out << "}"
         end
-        out << "}"
       end
 
       def print_directives(directives)
         if directives.any?
           directives.map { |d| " #{print_directive(d)}" }.join