Typeopt (ocaml.Typeopt)

val is_function_type : 
  Env.t ->
  Types.type_expr ->
  (Types.type_expr * Types.type_expr) option

val is_base_type : Env.t -> Types.type_expr -> Path.t -> bool

val maybe_pointer_type : 
  Env.t ->
  Types.type_expr ->
  Lambda.immediate_or_pointer

val maybe_pointer : Typedtree.expression -> Lambda.immediate_or_pointer

val array_type_kind : Env.t -> Types.type_expr -> Lambda.array_kind

val array_kind : Typedtree.expression -> Lambda.array_kind

val array_pattern_kind : Typedtree.pattern -> Lambda.array_kind

val bigarray_type_kind_and_layout : 
  Env.t ->
  Types.type_expr ->
  Lambda.bigarray_kind * Lambda.bigarray_layout

val value_kind : Env.t -> Types.type_expr -> Lambda.value_kind

val function_return_value_kind : Env.t -> Types.type_expr -> Lambda.value_kind

val classify_lazy_argument : 
  Typedtree.expression ->
  [ `Constant_or_function
  | `Float_that_cannot_be_shortcut
  | `Identifier of [ `Forward_value | `Other ]
  | `Other ]

val value_kind_union : 
  Lambda.value_kind ->
  Lambda.value_kind ->
  Lambda.value_kind

value_kind_union k1 k2 is a value_kind at least as general as k1 and k2