val transl_type_decl :
  Env.t ->
  (string * Parsetree.type_declaration) list ->
  (Ident.t * Types.type_declaration) list * Env.t
val transl_exception :
  Env.t -> Parsetree.exception_declaration -> Types.exception_declaration
val transl_exn_rebind :
  Env.t -> Location.t -> Longident.t -> Path.t * Types.exception_declaration
val transl_value_decl :
  Env.t -> Parsetree.value_description -> Types.value_description
val transl_with_constraint :
  Env.t ->
  Ident.t ->
  Path.t option -> Parsetree.type_declaration -> Types.type_declaration
val abstract_type_decl : int -> Types.type_declaration
val approx_type_decl :
  Env.t ->
  (string * Parsetree.type_declaration) list ->
  (Ident.t * Types.type_declaration) list
val check_recmod_typedecl :
  Env.t ->
  Location.t -> Ident.t list -> Path.t -> Types.type_declaration -> unit
val compute_variance_decls :
  Env.t ->
  (Ident.t * Types.type_declaration * Types.type_declaration *
   Types.class_declaration * Types.cltype_declaration *
   ((bool * bool) list * Location.t))
  list ->
  (Types.type_declaration * Types.type_declaration *
   Types.class_declaration * Types.cltype_declaration)
  list
type error =
  Typedecl.error =
    Repeated_parameter
  | Duplicate_constructor of string
  | Too_many_constructors
  | Duplicate_label of string
  | Recursive_abbrev of string
  | Definition_mismatch of Types.type_expr
  | Constraint_failed of Types.type_expr * Types.type_expr
  | Unconsistent_constraint of (Types.type_expr * Types.type_expr) list
  | Type_clash of (Types.type_expr * Types.type_expr) list
  | Parameters_differ of Path.t * Types.type_expr * Types.type_expr
  | Null_arity_external
  | Missing_native_external
  | Unbound_type_var of Types.type_expr * Types.type_declaration
  | Unbound_exception of Longident.t
  | Not_an_exception of Longident.t
  | Bad_variance of int * (bool * bool) * (bool * bool)
  | Unavailable_type_constructor of Path.t
  | Bad_fixed_type of string
exception Error of Location.t * error
val report_error : Format.formatter -> error -> unit