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|
(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1996 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the Q Public License version 1.0. *)
(* *)
(***********************************************************************)
(* $Id$ *)
(* Typechecking of type expressions for the core language *)
open Format;;
val transl_simple_type:
Env.t -> bool -> Parsetree.core_type -> Types.type_expr
val transl_simple_type_delayed:
Env.t -> Parsetree.core_type -> Types.type_expr * (unit -> unit)
(* Translate a type, but leave type variables unbound. Returns
the type and a function that binds the type variable. *)
val transl_type_scheme:
Env.t -> Parsetree.core_type -> Types.type_expr
val reset_type_variables: unit -> unit
val enter_type_variable: bool -> string -> Types.type_expr
val type_variable : Location.t -> string -> Types.type_expr
val narrow: unit -> unit
val widen: unit -> unit
exception Already_bound
type error =
Unbound_type_variable of string
| Unbound_type_constructor of Longident.t
| Type_arity_mismatch of Longident.t * int * int
| Bound_type_variable of string
| Recursive_type
| Unbound_class of Longident.t
| Unbound_row_variable of Longident.t
| Type_mismatch of (Types.type_expr * Types.type_expr) list
| Alias_type_mismatch of (Types.type_expr * Types.type_expr) list
| Present_has_conjunction of string
| Present_has_no_type of string
| Multiple_constructor of string
exception Error of Location.t * error
val report_error: formatter -> error -> unit
|
