[
  (mod_item)
  (function_item)
  (struct_item)
  (trait_item)
  (enum_item)
  (impl_item)
  (type_item)
  (const_item)
  (let_declaration)
  (for_expression)
  (while_expression)
  (if_expression)
  (match_expression)
  (call_expression)
  (array_expression)
  (attribute_item)
  (block)
  (use_declaration)+
] @fold
