From 9043add656177eeac1491a73d2f3ab92bec0013c Mon Sep 17 00:00:00 2001
From: Benjamin Barenblat <bbaren@debian.org>
Date: Sat, 29 Dec 2018 14:31:27 -0500
Subject: Imported Upstream version 8.8.2

---
 intf/pattern.ml | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 intf/pattern.ml

(limited to 'intf/pattern.ml')

diff --git a/intf/pattern.ml b/intf/pattern.ml
new file mode 100644
index 00000000..af234767
--- /dev/null
+++ b/intf/pattern.ml
@@ -0,0 +1,44 @@
+(************************************************************************)
+(*         *   The Coq Proof Assistant / The Coq Development Team       *)
+(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
+(* <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 Globnames
+open Constr
+open Misctypes
+
+(** {5 Patterns} *)
+
+type case_info_pattern =
+    { cip_style : Constr.case_style;
+      cip_ind : inductive option;
+      cip_ind_tags : bool list option; (** indicates LetIn/Lambda in arity *)
+      cip_extensible : bool (** does this match end with _ => _ ? *) }
+
+type constr_pattern =
+  | PRef of global_reference
+  | PVar of Id.t
+  | PEvar of existential_key * constr_pattern array
+  | PRel of int
+  | PApp of constr_pattern * constr_pattern array
+  | PSoApp of patvar * constr_pattern list
+  | PProj of Projection.t * constr_pattern
+  | PLambda of Name.t * constr_pattern * constr_pattern
+  | PProd of Name.t * constr_pattern * constr_pattern
+  | PLetIn of Name.t * constr_pattern * constr_pattern option * constr_pattern
+  | PSort of glob_sort
+  | PMeta of patvar option
+  | PIf of constr_pattern * constr_pattern * constr_pattern
+  | PCase of case_info_pattern * constr_pattern * constr_pattern *
+      (int * bool list * constr_pattern) list (** index of constructor, nb of args *)
+  | PFix of fixpoint
+  | PCoFix of cofixpoint
+
+(** Nota : in a [PCase], the array of branches might be shorter than
+    expected, denoting the use of a final "_ => _" branch *)
-- 
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