ast_typ_uncurry.mli

(* Copyright (C) 2020 Authors of ReScript
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * In addition to the permissions granted to you by the LGPL, you may combine
 * or link a "work that uses the Library" with a publicly distributed version
 * of this file to produce a combined library or application, then distribute
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 * to comply with the obligations normally placed on you by section 4 of the
 * LGPL version 3 (or the corresponding section of a later version of the LGPL
 * should you choose to use a later version).
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
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(* Note that currently there is no way to consume [Js.meth_callback]
    so it is fine to encode it with a freedom,
    but we need make it better for error message.
   - all are encoded as
   {[
     type fn =  (`Args_n of _ , 'result ) Js.fn
     type method = (`Args_n of _, 'result) Js.method
     type method_callback = (`Args_n of _, 'result) Js.method_callback
   ]}
    For [method_callback], the arity is never zero, so both [method]
    and  [fn] requires (unit -> 'a) to encode arity zero
*)

type typ = Parsetree.core_type

type 'a cxt = Ast_helper.loc -> Bs_ast_mapper.mapper -> 'a

type uncurry_type_gen =
  (Asttypes.arg_label ->
  (* label for error checking *)
  typ ->
  (* First arg *)
  typ ->
  (* Tail *)
  typ)
  cxt

val to_uncurry_type : uncurry_type_gen
(** syntax : 
    {[ int -> int -> int [@bs]]}
*)

val to_method_type : uncurry_type_gen
(** syntax
    {[ method : int -> itn -> int ]}
*)

val to_method_callback_type : uncurry_type_gen
(** syntax:
    {[ 'obj -> int -> int [@bs.this] ]}
*)

val generate_method_type :
  Location.t ->
  Bs_ast_mapper.mapper ->
  ?alias_type:Parsetree.core_type ->
  string ->
  Asttypes.arg_label ->
  Parsetree.pattern ->
  Parsetree.expression ->
  Parsetree.core_type

val generate_arg_type :
  Location.t ->
  Bs_ast_mapper.mapper ->
  string ->
  Asttypes.arg_label ->
  Parsetree.pattern ->
  Parsetree.expression ->
  Parsetree.core_type