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(************************************************************************)
(*         *   The Coq Proof Assistant / The Coq Development Team       *)
(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2019       *)
(* <O___,, *       (see CREDITS file for the list of authors)           *)
(*   \VV/  **************************************************************)
(*    //   *    This file is distributed under the terms of the         *)
(*         *     GNU Lesser General Public License Version 2.1          *)
(*         *     (see LICENSE file for the text of the license)         *)
(************************************************************************)

open Names
open EConstr

(** This file extends Matching with the main logic for Ltac2 match goal. *)

type context = EConstr.t

type match_pattern =
| MatchPattern of Pattern.constr_pattern
| MatchContext of Pattern.constr_pattern

(** TODO: handle definitions *)
type match_context_hyps = match_pattern

type match_rule = match_context_hyps list * match_pattern

val match_goal:
  Environ.env ->
  Evd.evar_map ->
  constr ->
  rev:bool ->
  match_rule ->
    ((Id.t * context option) list * (* List of hypotheses matching: name + context *)
    context option * (* Context for conclusion *)
    Ltac_pretype.patvar_map (* Pattern variable substitution *)) Proofview.tactic