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

---
 clib/canary.mli | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 clib/canary.mli

(limited to 'clib/canary.mli')

diff --git a/clib/canary.mli b/clib/canary.mli
new file mode 100644
index 00000000..d993eabc
--- /dev/null
+++ b/clib/canary.mli
@@ -0,0 +1,27 @@
+(************************************************************************)
+(*         *   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)         *)
+(************************************************************************)
+
+type t
+(** Type of canaries. Canaries are used to ensure that an object does not use
+    generic operations. *)
+
+val obj : t
+(** Canary. In the current implementation, this object is marshallable,
+    forbids generic comparison but still allows generic hashes. *)
+
+module type Obj = sig type t end
+
+module Make(M : Obj) :
+sig
+  type t
+  val prj : t -> M.t
+  val inj : M.t -> t
+end
+(** Adds a canary to any type. *)
-- 
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