From 7cfc4e5146be5666419451bdd516f1f3f264d24a Mon Sep 17 00:00:00 2001
From: Enrico Tassi <gareuselesinge@debian.org>
Date: Sun, 25 Jan 2015 14:42:51 +0100
Subject: Imported Upstream version 8.5~beta1+dfsg

---
 kernel/opaqueproof.mli | 81 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 kernel/opaqueproof.mli

(limited to 'kernel/opaqueproof.mli')

diff --git a/kernel/opaqueproof.mli b/kernel/opaqueproof.mli
new file mode 100644
index 00000000..87cebd62
--- /dev/null
+++ b/kernel/opaqueproof.mli
@@ -0,0 +1,81 @@
+(************************************************************************)
+(*  v      *   The Coq Proof Assistant  /  The Coq Development Team     *)
+(* <O___,, *   INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015     *)
+(*   \VV/  **************************************************************)
+(*    //   *      This file is distributed under the terms of the       *)
+(*         *       GNU Lesser General Public License Version 2.1        *)
+(************************************************************************)
+
+open Names
+open Term
+open Mod_subst
+open Int
+
+(** This module implements the handling of opaque proof terms.
+    Opauqe proof terms are special since:
+    - they can be lazily computed and substituted
+    - they are stoked in an optionally loaded segment of .vo files
+    An [opaque] proof terms holds the real data until fully discharged.
+    In this case it is called [direct].
+    When it is [turn_indirect] the data is relocated to an opaque table
+    and the [opaque] is turned into an index. *)
+
+type proofterm = (constr * Univ.universe_context_set) Future.computation
+type opaquetab
+type opaque
+
+val empty_opaquetab : opaquetab
+
+(** From a [proofterm] to some [opaque]. *)
+val create : proofterm -> opaque
+
+(** Turn a direct [opaque] into an indirect one, also hashconses constr.
+ *  The integer is an hint of the maximum id used so far *)
+val turn_indirect : DirPath.t -> opaque -> opaquetab -> opaque * opaquetab
+
+(** From a [opaque] back to a [constr]. This might use the
+    indirect opaque accessor configured below. *)
+val force_proof : opaquetab -> opaque -> constr
+val force_constraints : opaquetab -> opaque -> Univ.universe_context_set
+val get_proof : opaquetab -> opaque -> Term.constr Future.computation
+val get_constraints :
+  opaquetab -> opaque -> Univ.universe_context_set Future.computation option
+
+val subst_opaque : substitution -> opaque -> opaque
+val iter_direct_opaque : (constr -> unit) -> opaque -> opaque
+
+type work_list = (Univ.Instance.t * Id.t array) Cmap.t * 
+  (Univ.Instance.t * Id.t array) Mindmap.t
+
+type cooking_info = { 
+  modlist : work_list; 
+  abstract : Context.named_context * Univ.universe_level_subst * Univ.UContext.t } 
+
+(* The type has two caveats:
+   1) cook_constr is defined after
+   2) we have to store the input in the [opaque] in order to be able to
+      discharge it when turning a .vi into a .vo *)
+val discharge_direct_opaque :
+  cook_constr:(constr -> constr) -> cooking_info -> opaque -> opaque
+
+val uuid_opaque : opaquetab -> opaque -> Future.UUID.t option
+val join_opaque : opaquetab -> opaque -> unit
+
+val dump : opaquetab ->
+  Constr.t Future.computation array *
+  Univ.universe_context_set Future.computation array *
+  cooking_info list array *
+  int Future.UUIDMap.t
+
+(** When stored indirectly, opaque terms are indexed by their library
+    dirpath and an integer index. The following two functions activate
+    this indirect storage, by telling how to store and retrieve terms.
+    Default creator always returns [None], preventing the creation of
+    any indirect link, and default accessor always raises an error.
+*)
+
+val set_indirect_opaque_accessor :
+  (DirPath.t -> int -> Term.constr Future.computation) -> unit
+val set_indirect_univ_accessor :
+  (DirPath.t -> int -> Univ.universe_context_set Future.computation option) -> unit
+
-- 
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