From 1c52cde4e5f5438305e17d95435dbdcf3bf8ea00 Mon Sep 17 00:00:00 2001
From: Matthieu Sozeau
Date: Thu, 29 Sep 2016 14:40:00 +0200
Subject: Cleanup API, making inference_hook optional

---
 stm/lemmas.ml             | 4 ++--
 stm/lemmas.mli            | 2 +-
 toplevel/vernacentries.ml | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/stm/lemmas.ml b/stm/lemmas.ml
index bf10b91339..022c89ad9a 100644
--- a/stm/lemmas.ml
+++ b/stm/lemmas.ml
@@ -449,7 +449,7 @@ let start_proof_with_initialization kind ctx recguard thms snl hook =
 	  call_hook (fun exn -> exn) hook strength ref) thms_data in
       start_proof_univs id ?pl kind ctx t ?init_tac (fun ctx -> mk_hook (hook ctx)) ~compute_guard:guard
 
-let start_proof_com use_hook kind thms hook =
+let start_proof_com ?inference_hook kind thms hook =
   let env0 = Global.env () in
   let levels = Option.map snd (fst (List.hd thms)) in 
   let evdref = ref (match levels with
@@ -460,7 +460,7 @@ let start_proof_com use_hook kind thms hook =
     let impls, ((env, ctx), imps) = interp_context_evars env0 evdref bl in
     let t', imps' = interp_type_evars_impls ~impls env evdref t in
     let flags = all_and_fail_flags in
-    let flags = { flags with use_hook } in
+    let flags = { flags with use_hook = inference_hook } in
     evdref := solve_remaining_evars flags env !evdref (Evd.empty,!evdref);
     let ids = List.map get_name ctx in
       (compute_proof_name (pi1 kind) sopt,
diff --git a/stm/lemmas.mli b/stm/lemmas.mli
index 904cdeef4d..39c089be9f 100644
--- a/stm/lemmas.mli
+++ b/stm/lemmas.mli
@@ -34,7 +34,7 @@ val start_proof_univs : Id.t -> ?pl:universe_binders -> goal_kind -> Evd.evar_ma
   (Evd.evar_universe_context option -> unit declaration_hook) -> unit
 
 val start_proof_com :
-  Pretyping.inference_hook option ->
+  ?inference_hook:Pretyping.inference_hook ->
   goal_kind -> Vernacexpr.proof_expr list ->
   unit declaration_hook -> unit
 
diff --git a/toplevel/vernacentries.ml b/toplevel/vernacentries.ml
index 6723a8b489..f67f6f91ce 100644
--- a/toplevel/vernacentries.ml
+++ b/toplevel/vernacentries.ml
@@ -449,7 +449,7 @@ let vernac_notation locality local =
 (* Gallina *)
 
 let start_proof_and_print k l hook =
-  let use_hook =
+  let inference_hook =
     if Flags.is_program_mode () then
       let hook env sigma ev =
         let tac = !Obligations.default_tactic in
@@ -468,7 +468,7 @@ let start_proof_and_print k l hook =
       in Some hook
     else None
   in
-  start_proof_com use_hook k l hook
+  start_proof_com ?inference_hook k l hook
 
 let no_hook = Lemmas.mk_hook (fun _ _ -> ())
 
-- 
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