(**************************************************************************)
(*                                                                        *)
(*                                 OCaml                                  *)
(*                                                                        *)
                , 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 GNU Lesser General Public License version 2.1 , with the          
(*   special exception on linking described in the file LICENSE.          *)
(*                                                                        *)
(**************************************************************************)

  Compute constructor and label descriptions from type declarations , 
    determining their representation .
   determining their representation. *)

open Types

val extension_descr:
  Path.t -> extension_constructor -> constructor_description

val labels_of_type:
  Path.t -> type_declaration ->
  (Ident.t * label_description) list
val constructors_of_type:
  Path.t -> type_declaration ->
  (Ident.t * constructor_description) list


exception Constr_not_found

val find_constr_by_tag:
  constructor_tag -> constructor_declaration list ->
    constructor_declaration

val constructor_existentials :
    constructor_arguments -> type_expr option -> type_expr list * type_expr list
(** Takes [cd_args] and [cd_res] from a [constructor_declaration] and
    returns:
    - the types of the constructor's arguments
    - the existential variables introduced by the constructor
 *)


(* Set the polymorphic variant row_name field *)
val set_row_name : type_declaration -> Path.t -> unit

************************************************************************
                                                                        
                                 OCaml                                  
                                                                        
                                                                        
     en Automatique.                                                    
                                                                        
   All rights reserved.  This file is distributed under the terms of    
   special exception on linking described in the file LICENSE.          
                                                                        
************************************************************************
* Takes [cd_args] and [cd_res] from a [constructor_declaration] and
    returns:
    - the types of the constructor's arguments
    - the existential variables introduced by the constructor
 
 Set the polymorphic variant row_name field 
                , projet Cristal , INRIA Rocquencourt           
    Copyright 1996 Institut National de Recherche en Informatique et     
    the GNU Lesser General Public License version 2.1 , with the          

  Compute constructor and label descriptions from type declarations , 
    determining their representation .
   determining their representation. *)

open Types

val extension_descr:
  Path.t -> extension_constructor -> constructor_description

val labels_of_type:
  Path.t -> type_declaration ->
  (Ident.t * label_description) list
val constructors_of_type:
  Path.t -> type_declaration ->
  (Ident.t * constructor_description) list


exception Constr_not_found

val find_constr_by_tag:
  constructor_tag -> constructor_declaration list ->
    constructor_declaration

val constructor_existentials :
    constructor_arguments -> type_expr option -> type_expr list * type_expr list


val set_row_name : type_declaration -> Path.t -> unit
