From 62adf2b9e03afa212fcd8819226da068bf4a32b8 Mon Sep 17 00:00:00 2001
From: Gaëtan Gilbert
Date: Tue, 29 Oct 2019 13:20:04 +0100
Subject: Pretyping.check_evars: make initial evar map optional

There are no users in Coq but maybe some plugin wants it so don't
completely remove it
---
 vernac/classes.ml       | 2 +-
 vernac/comAssumption.ml | 2 +-
 vernac/comInductive.ml  | 6 +++---
 vernac/record.ml        | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

(limited to 'vernac')

diff --git a/vernac/classes.ml b/vernac/classes.ml
index 0333b73ffe..c9b5144299 100644
--- a/vernac/classes.ml
+++ b/vernac/classes.ml
@@ -410,7 +410,7 @@ let do_instance_resolve_TC termtype sigma env =
   (* Beware of this step, it is required as to minimize universes. *)
   let sigma = Evd.minimize_universes sigma in
   (* Check that the type is free of evars now. *)
-  Pretyping.check_evars env (Evd.from_env env) sigma termtype;
+  Pretyping.check_evars env sigma termtype;
   termtype, sigma
 
 let do_instance_type_ctx_instance props k env' ctx' sigma ~program_mode subst =
diff --git a/vernac/comAssumption.ml b/vernac/comAssumption.ml
index a001420f74..8a403e5a03 100644
--- a/vernac/comAssumption.ml
+++ b/vernac/comAssumption.ml
@@ -255,7 +255,7 @@ let context ~poly l =
   let sigma, (_, ((_env, ctx), impls)) = interp_context_evars ~program_mode:false env sigma l in
   (* Note, we must use the normalized evar from now on! *)
   let sigma = Evd.minimize_universes sigma in
-  let ce t = Pretyping.check_evars env (Evd.from_env env) sigma t in
+  let ce t = Pretyping.check_evars env sigma t in
   let () = List.iter (fun decl -> Context.Rel.Declaration.iter_constr ce decl) ctx in
   (* reorder, evar-normalize and add implicit status *)
   let ctx = List.rev_map (fun d ->
diff --git a/vernac/comInductive.ml b/vernac/comInductive.ml
index 2aee9bd47f..2afb5e9d65 100644
--- a/vernac/comInductive.ml
+++ b/vernac/comInductive.ml
@@ -369,10 +369,10 @@ let interp_mutual_inductive_constr ~env0 ~sigma ~template ~udecl ~env_ar ~env_pa
   let arityconcl = List.map (Option.map (fun (_anon, s) -> EConstr.ESorts.kind sigma s)) arityconcl in
   let sigma = restrict_inductive_universes sigma ctx_params (List.map snd arities) constructors in
   let uctx = Evd.check_univ_decl ~poly sigma udecl in
-  List.iter (fun c -> check_evars env_params (Evd.from_env env_params) sigma (EConstr.of_constr (snd c))) arities;
-  Context.Rel.iter (fun c -> check_evars env0 (Evd.from_env env0) sigma (EConstr.of_constr c)) ctx_params;
+  List.iter (fun c -> check_evars env_params sigma (EConstr.of_constr (snd c))) arities;
+  Context.Rel.iter (fun c -> check_evars env0 sigma (EConstr.of_constr c)) ctx_params;
   List.iter (fun (_,ctyps,_) ->
-    List.iter (fun c -> check_evars env_ar_params (Evd.from_env env_ar_params) sigma (EConstr.of_constr c)) ctyps)
+    List.iter (fun c -> check_evars env_ar_params sigma (EConstr.of_constr c)) ctyps)
     constructors;
 
   (* Build the inductive entries *)
diff --git a/vernac/record.ml b/vernac/record.ml
index d85b71df44..5be911938b 100644
--- a/vernac/record.ml
+++ b/vernac/record.ml
@@ -202,7 +202,7 @@ let typecheck_params_and_fields finite def poly pl ps records =
   in
   let univs = Evd.check_univ_decl ~poly sigma decl in
   let ubinders = Evd.universe_binders sigma in
-  let ce t = Pretyping.check_evars env0 (Evd.from_env env0) sigma (EConstr.of_constr t) in
+  let ce t = Pretyping.check_evars env0 sigma (EConstr.of_constr t) in
   let () = List.iter (iter_constr ce) (List.rev newps) in
   ubinders, univs, template, newps, imps, ans
 
-- 
cgit v1.2.3


From 097796f1ebfa4009502e23494af08f332613ace3 Mon Sep 17 00:00:00 2001
From: Gaëtan Gilbert
Date: Tue, 29 Oct 2019 13:27:25 +0100
Subject: comInductive: remove redundant check_evars calls

We do [solve_remaining_evars all_and_fail_flags] immediately before
calling [interp_mutual_inductive_constr] so these checks are extra.
---
 vernac/comInductive.ml  | 9 ++-------
 vernac/comInductive.mli | 1 -
 2 files changed, 2 insertions(+), 8 deletions(-)

(limited to 'vernac')

diff --git a/vernac/comInductive.ml b/vernac/comInductive.ml
index 2afb5e9d65..812bf7b021 100644
--- a/vernac/comInductive.ml
+++ b/vernac/comInductive.ml
@@ -353,7 +353,7 @@ let restrict_inductive_universes sigma ctx_params arities constructors =
   let uvars = List.fold_right (fun (_,ctypes,_) -> List.fold_right merge_universes_of_constr ctypes) constructors uvars in
   Evd.restrict_universe_context sigma uvars
 
-let interp_mutual_inductive_constr ~env0 ~sigma ~template ~udecl ~env_ar ~env_params ~ctx_params ~indnames ~arities ~arityconcl ~constructors ~env_ar_params ~cumulative ~poly ~private_ind ~finite =
+let interp_mutual_inductive_constr ~env0 ~sigma ~template ~udecl ~env_ar ~ctx_params ~indnames ~arities ~arityconcl ~constructors ~env_ar_params ~cumulative ~poly ~private_ind ~finite =
   (* Compute renewed arities *)
   let sigma = Evd.minimize_universes sigma in
   let nf = Evarutil.nf_evars_universes sigma in
@@ -369,11 +369,6 @@ let interp_mutual_inductive_constr ~env0 ~sigma ~template ~udecl ~env_ar ~env_pa
   let arityconcl = List.map (Option.map (fun (_anon, s) -> EConstr.ESorts.kind sigma s)) arityconcl in
   let sigma = restrict_inductive_universes sigma ctx_params (List.map snd arities) constructors in
   let uctx = Evd.check_univ_decl ~poly sigma udecl in
-  List.iter (fun c -> check_evars env_params sigma (EConstr.of_constr (snd c))) arities;
-  Context.Rel.iter (fun c -> check_evars env0 sigma (EConstr.of_constr c)) ctx_params;
-  List.iter (fun (_,ctyps,_) ->
-    List.iter (fun c -> check_evars env_ar_params sigma (EConstr.of_constr c)) ctyps)
-    constructors;
 
   (* Build the inductive entries *)
   let entries = List.map4 (fun indname (templatearity, arity) concl (cnames,ctypes,cimpls) ->
@@ -509,7 +504,7 @@ let interp_mutual_inductive_gen env0 ~template udecl (uparamsl,paramsl,indl) not
         indimpls, List.map (fun impls ->
             userimpls @ impls) cimpls) indimpls constructors
   in
-  let mie, pl = interp_mutual_inductive_constr ~env0 ~template ~sigma ~env_params ~env_ar ~ctx_params ~udecl ~arities ~arityconcl ~constructors ~env_ar_params ~poly ~finite ~cumulative ~private_ind ~indnames in
+  let mie, pl = interp_mutual_inductive_constr ~env0 ~template ~sigma ~env_ar ~ctx_params ~udecl ~arities ~arityconcl ~constructors ~env_ar_params ~poly ~finite ~cumulative ~private_ind ~indnames in
   (mie, pl, impls)
 
 
diff --git a/vernac/comInductive.mli b/vernac/comInductive.mli
index ef05b213d8..6ff9d2142b 100644
--- a/vernac/comInductive.mli
+++ b/vernac/comInductive.mli
@@ -55,7 +55,6 @@ val interp_mutual_inductive_constr :
   template:bool option ->
   udecl:UState.universe_decl ->
   env_ar:Environ.env ->
-  env_params:Environ.env ->
   ctx_params:(EConstr.t, EConstr.t) Context.Rel.Declaration.pt list ->
   indnames:Names.Id.t list ->
   arities:EConstr.t list ->
-- 
cgit v1.2.3


From b621bc02657bd1effcca371b56260b0a7a327ed9 Mon Sep 17 00:00:00 2001
From: Gaëtan Gilbert
Date: Tue, 29 Oct 2019 13:36:06 +0100
Subject: reduce arguments of template_polymorphism_candidate

take only the template_check flag instead of the whole env
---
 vernac/comInductive.ml  | 12 ++++++------
 vernac/comInductive.mli |  7 +++----
 vernac/record.ml        |  3 ++-
 3 files changed, 11 insertions(+), 11 deletions(-)

(limited to 'vernac')

diff --git a/vernac/comInductive.ml b/vernac/comInductive.ml
index 812bf7b021..56ff757e1a 100644
--- a/vernac/comInductive.ml
+++ b/vernac/comInductive.ml
@@ -323,18 +323,18 @@ let check_named {CAst.loc;v=na} = match na with
   let msg = str "Parameters must be named." in
   user_err ?loc  msg
 
-let template_polymorphism_candidate env ~ctor_levels uctx params concl =
+let template_polymorphism_candidate ~template_check ~ctor_levels uctx params concl =
   match uctx with
   | Entries.Monomorphic_entry uctx ->
     let concltemplate = Option.cata (fun s -> not (Sorts.is_small s)) false concl in
     if not concltemplate then false
+    else if not template_check then true
     else
-      let template_check = Environ.check_template env in
       let conclu = Option.cata Sorts.univ_of_sort Univ.type0m_univ concl in
       let params, conclunivs =
         IndTyping.template_polymorphic_univs ~template_check ~ctor_levels uctx params conclu
       in
-      not (template_check && Univ.LSet.is_empty conclunivs)
+      not (Univ.LSet.is_empty conclunivs)
   | Entries.Polymorphic_entry _ -> false
 
 let check_param = function
@@ -353,7 +353,7 @@ let restrict_inductive_universes sigma ctx_params arities constructors =
   let uvars = List.fold_right (fun (_,ctypes,_) -> List.fold_right merge_universes_of_constr ctypes) constructors uvars in
   Evd.restrict_universe_context sigma uvars
 
-let interp_mutual_inductive_constr ~env0 ~sigma ~template ~udecl ~env_ar ~ctx_params ~indnames ~arities ~arityconcl ~constructors ~env_ar_params ~cumulative ~poly ~private_ind ~finite =
+let interp_mutual_inductive_constr ~sigma ~template ~udecl ~env_ar ~ctx_params ~indnames ~arities ~arityconcl ~constructors ~env_ar_params ~cumulative ~poly ~private_ind ~finite =
   (* Compute renewed arities *)
   let sigma = Evd.minimize_universes sigma in
   let nf = Evarutil.nf_evars_universes sigma in
@@ -385,7 +385,7 @@ let interp_mutual_inductive_constr ~env0 ~sigma ~template ~udecl ~env_ar ~ctx_pa
           List.fold_left (fun levels c -> add_levels c levels)
             param_levels ctypes
         in
-        template_polymorphism_candidate env0 ~ctor_levels uctx ctx_params concl
+        template_polymorphism_candidate ~template_check:(Environ.check_template env_ar_params) ~ctor_levels uctx ctx_params concl
       in
       let template = match template with
         | Some template ->
@@ -504,7 +504,7 @@ let interp_mutual_inductive_gen env0 ~template udecl (uparamsl,paramsl,indl) not
         indimpls, List.map (fun impls ->
             userimpls @ impls) cimpls) indimpls constructors
   in
-  let mie, pl = interp_mutual_inductive_constr ~env0 ~template ~sigma ~env_ar ~ctx_params ~udecl ~arities ~arityconcl ~constructors ~env_ar_params ~poly ~finite ~cumulative ~private_ind ~indnames in
+  let mie, pl = interp_mutual_inductive_constr ~template ~sigma ~env_ar ~ctx_params ~udecl ~arities ~arityconcl ~constructors ~env_ar_params ~poly ~finite ~cumulative ~private_ind ~indnames in
   (mie, pl, impls)
 
 
diff --git a/vernac/comInductive.mli b/vernac/comInductive.mli
index 6ff9d2142b..73d385dec8 100644
--- a/vernac/comInductive.mli
+++ b/vernac/comInductive.mli
@@ -50,7 +50,6 @@ val declare_mutual_inductive_with_eliminations
   [@@ocaml.deprecated "Please use DeclareInd.declare_mutual_inductive_with_eliminations"]
 
 val interp_mutual_inductive_constr :
-  env0:Environ.env ->
   sigma:Evd.evar_map ->
   template:bool option ->
   udecl:UState.universe_decl ->
@@ -77,17 +76,17 @@ val should_auto_template : Id.t -> bool -> bool
    inductive under consideration. *)
 
 val template_polymorphism_candidate
-  : Environ.env
+  : template_check:bool
   -> ctor_levels:Univ.LSet.t
   -> Entries.universes_entry
   -> Constr.rel_context
   -> Sorts.t option
   -> bool
-(** [template_polymorphism_candidate env ~ctor_levels uctx params
+(** [template_polymorphism_candidate ~template_check ~ctor_levels uctx params
    conclsort] is [true] iff an inductive with params [params],
    conclusion [conclsort] and universe levels appearing in the
    constructor arguments [ctor_levels] would be definable as template
    polymorphic. It should have at least one universe in its
    monomorphic universe context that can be made parametric in its
-   conclusion sort, if one is given. If the [Template Check] flag is
+   conclusion sort, if one is given. If the [template_check] flag is
    false we just check that the conclusion sort is not small. *)
diff --git a/vernac/record.ml b/vernac/record.ml
index 5be911938b..1ee6812f4e 100644
--- a/vernac/record.ml
+++ b/vernac/record.ml
@@ -447,7 +447,8 @@ let declare_structure ~cumulative finite ubinders univs paramimpls params templa
                univs)
             param_levels fields
         in
-        ComInductive.template_polymorphism_candidate (Global.env ()) ~ctor_levels univs params
+        let template_check = Environ.check_template (Global.env ()) in
+        ComInductive.template_polymorphism_candidate ~template_check ~ctor_levels univs params
           (Some (Sorts.sort_of_univ min_univ))
       in
       match template with
-- 
cgit v1.2.3


From 4f1d657f42957d0c2d115424564eedf599584cbc Mon Sep 17 00:00:00 2001
From: Gaëtan Gilbert
Date: Tue, 29 Oct 2019 13:50:47 +0100
Subject: Remove variance info from inductive entries, infer in indtyping

It gets thrown away if the inductive is declared in a section anyway,
and there is no user syntax to specify it.
---
 vernac/comInductive.ml  | 11 ++++-------
 vernac/comInductive.mli | 32 ++++++++++++++++----------------
 vernac/record.ml        |  4 +---
 3 files changed, 21 insertions(+), 26 deletions(-)

(limited to 'vernac')

diff --git a/vernac/comInductive.ml b/vernac/comInductive.ml
index 56ff757e1a..5cf2b680ca 100644
--- a/vernac/comInductive.ml
+++ b/vernac/comInductive.ml
@@ -353,7 +353,7 @@ let restrict_inductive_universes sigma ctx_params arities constructors =
   let uvars = List.fold_right (fun (_,ctypes,_) -> List.fold_right merge_universes_of_constr ctypes) constructors uvars in
   Evd.restrict_universe_context sigma uvars
 
-let interp_mutual_inductive_constr ~sigma ~template ~udecl ~env_ar ~ctx_params ~indnames ~arities ~arityconcl ~constructors ~env_ar_params ~cumulative ~poly ~private_ind ~finite =
+let interp_mutual_inductive_constr ~sigma ~template ~udecl ~ctx_params ~indnames ~arities ~arityconcl ~constructors ~env_ar_params ~cumulative ~poly ~private_ind ~finite =
   (* Compute renewed arities *)
   let sigma = Evd.minimize_universes sigma in
   let nf = Evarutil.nf_evars_universes sigma in
@@ -403,7 +403,6 @@ let interp_mutual_inductive_constr ~sigma ~template ~udecl ~env_ar ~ctx_params ~
       })
       indnames arities arityconcl constructors
   in
-  let variance = if poly && cumulative then Some (InferCumulativity.dummy_variance uctx) else None in
   (* Build the mutual inductive entry *)
   let mind_ent =
     { mind_entry_params = ctx_params;
@@ -412,12 +411,10 @@ let interp_mutual_inductive_constr ~sigma ~template ~udecl ~env_ar ~ctx_params ~
       mind_entry_inds = entries;
       mind_entry_private = if private_ind then Some false else None;
       mind_entry_universes = uctx;
-      mind_entry_variance = variance;
+      mind_entry_cumulative = poly && cumulative;
     }
   in
-  (if poly && cumulative then
-      InferCumulativity.infer_inductive env_ar mind_ent
-   else mind_ent), Evd.universe_binders sigma
+  mind_ent, Evd.universe_binders sigma
 
 let interp_params env udecl uparamsl paramsl =
   let sigma, udecl = interp_univ_decl_opt env udecl in
@@ -504,7 +501,7 @@ let interp_mutual_inductive_gen env0 ~template udecl (uparamsl,paramsl,indl) not
         indimpls, List.map (fun impls ->
             userimpls @ impls) cimpls) indimpls constructors
   in
-  let mie, pl = interp_mutual_inductive_constr ~template ~sigma ~env_ar ~ctx_params ~udecl ~arities ~arityconcl ~constructors ~env_ar_params ~poly ~finite ~cumulative ~private_ind ~indnames in
+  let mie, pl = interp_mutual_inductive_constr ~template ~sigma ~ctx_params ~udecl ~arities ~arityconcl ~constructors ~env_ar_params ~poly ~finite ~cumulative ~private_ind ~indnames in
   (mie, pl, impls)
 
 
diff --git a/vernac/comInductive.mli b/vernac/comInductive.mli
index 73d385dec8..418d971558 100644
--- a/vernac/comInductive.mli
+++ b/vernac/comInductive.mli
@@ -49,22 +49,22 @@ val declare_mutual_inductive_with_eliminations
   -> Names.MutInd.t
   [@@ocaml.deprecated "Please use DeclareInd.declare_mutual_inductive_with_eliminations"]
 
-val interp_mutual_inductive_constr :
-  sigma:Evd.evar_map ->
-  template:bool option ->
-  udecl:UState.universe_decl ->
-  env_ar:Environ.env ->
-  ctx_params:(EConstr.t, EConstr.t) Context.Rel.Declaration.pt list ->
-  indnames:Names.Id.t list ->
-  arities:EConstr.t list ->
-  arityconcl:(bool * EConstr.ESorts.t) option list ->
-  constructors:(Names.Id.t list * Constr.constr list * 'a list list) list ->
-  env_ar_params:Environ.env ->
-  cumulative:bool ->
-  poly:bool ->
-  private_ind:bool ->
-  finite:Declarations.recursivity_kind ->
-  Entries.mutual_inductive_entry * UnivNames.universe_binders
+val interp_mutual_inductive_constr
+  : sigma:Evd.evar_map
+  -> template:bool option
+  -> udecl:UState.universe_decl
+  -> ctx_params:(EConstr.t, EConstr.t) Context.Rel.Declaration.pt list
+  -> indnames:Names.Id.t list
+  -> arities:EConstr.t list
+  -> arityconcl:(bool * EConstr.ESorts.t) option list
+  -> constructors:(Names.Id.t list * Constr.constr list * 'a list list) list
+  -> env_ar_params:Environ.env
+  (** Environment with the inductives and parameters in the rel_context *)
+  -> cumulative:bool
+  -> poly:bool
+  -> private_ind:bool
+  -> finite:Declarations.recursivity_kind
+  -> Entries.mutual_inductive_entry * UnivNames.universe_binders
 
 (************************************************************************)
 (** Internal API, exported for Record                                   *)
diff --git a/vernac/record.ml b/vernac/record.ml
index 1ee6812f4e..ea10e06d02 100644
--- a/vernac/record.ml
+++ b/vernac/record.ml
@@ -411,7 +411,6 @@ let declare_structure ~cumulative finite ubinders univs paramimpls params templa
     | Polymorphic_entry (nas, ctx) ->
       true, Polymorphic_entry (nas, ctx)
   in
-  let variance = if poly && cumulative then Some (InferCumulativity.dummy_variance ctx) else None in
   let binder_name =
     match name with
     | None ->
@@ -478,10 +477,9 @@ let declare_structure ~cumulative finite ubinders univs paramimpls params templa
       mind_entry_inds = blocks;
       mind_entry_private = None;
       mind_entry_universes = univs;
-      mind_entry_variance = variance;
+      mind_entry_cumulative = poly && cumulative;
     }
   in
-  let mie = InferCumulativity.infer_inductive (Global.env ()) mie in
   let impls = List.map (fun _ -> paramimpls, []) record_data in
   let kn = DeclareInd.declare_mutual_inductive_with_eliminations mie ubinders impls
       ~primitive_expected:!primitive_flag
-- 
cgit v1.2.3


From 82a1f73aa6c70672e212f9122c325425f9129570 Mon Sep 17 00:00:00 2001
From: Gaëtan Gilbert
Date: Tue, 29 Oct 2019 14:05:24 +0100
Subject: Don't pass (ignored) implicits to interp_mutual_inductive_constr

---
 vernac/comInductive.ml  | 20 +++++++++++---------
 vernac/comInductive.mli |  2 +-
 2 files changed, 12 insertions(+), 10 deletions(-)

(limited to 'vernac')

diff --git a/vernac/comInductive.ml b/vernac/comInductive.ml
index 5cf2b680ca..b603c54026 100644
--- a/vernac/comInductive.ml
+++ b/vernac/comInductive.ml
@@ -255,7 +255,7 @@ let inductive_levels env evd arities inds =
   in
   let cstrs_levels, min_levels, sizes =
     CList.split3
-      (List.map2 (fun (_,tys,_) (arity,(ctx,du)) ->
+      (List.map2 (fun (_,tys) (arity,(ctx,du)) ->
         let len = List.length tys in
         let minlev = Sorts.univ_of_sort du in
         let minlev =
@@ -350,28 +350,28 @@ let restrict_inductive_universes sigma ctx_params arities constructors =
   let uvars = Univ.LSet.empty in
   let uvars = Context.Rel.(fold_outside (Declaration.fold_constr merge_universes_of_constr) ctx_params ~init:uvars) in
   let uvars = List.fold_right merge_universes_of_constr arities uvars in
-  let uvars = List.fold_right (fun (_,ctypes,_) -> List.fold_right merge_universes_of_constr ctypes) constructors uvars in
+  let uvars = List.fold_right (fun (_,ctypes) -> List.fold_right merge_universes_of_constr ctypes) constructors uvars in
   Evd.restrict_universe_context sigma uvars
 
 let interp_mutual_inductive_constr ~sigma ~template ~udecl ~ctx_params ~indnames ~arities ~arityconcl ~constructors ~env_ar_params ~cumulative ~poly ~private_ind ~finite =
   (* Compute renewed arities *)
   let sigma = Evd.minimize_universes sigma in
   let nf = Evarutil.nf_evars_universes sigma in
-  let constructors = List.map (on_pi2 (List.map nf)) constructors in
+  let constructors = List.map (on_snd (List.map nf)) constructors in
   let arities = List.map EConstr.(to_constr sigma) arities in
   let sigma = List.fold_left make_anonymous_conclusion_flexible sigma arityconcl in
   let sigma, arities = inductive_levels env_ar_params sigma arities constructors in
   let sigma = Evd.minimize_universes sigma in
   let nf = Evarutil.nf_evars_universes sigma in
   let arities = List.map (on_snd nf) arities in
-  let constructors = List.map (on_pi2 (List.map nf)) constructors in
+  let constructors = List.map (on_snd (List.map nf)) constructors in
   let ctx_params = List.map Termops.(map_rel_decl (EConstr.to_constr sigma)) ctx_params in
   let arityconcl = List.map (Option.map (fun (_anon, s) -> EConstr.ESorts.kind sigma s)) arityconcl in
   let sigma = restrict_inductive_universes sigma ctx_params (List.map snd arities) constructors in
   let uctx = Evd.check_univ_decl ~poly sigma udecl in
 
   (* Build the inductive entries *)
-  let entries = List.map4 (fun indname (templatearity, arity) concl (cnames,ctypes,cimpls) ->
+  let entries = List.map4 (fun indname (templatearity, arity) concl (cnames,ctypes) ->
       let template_candidate () =
         templatearity ||
         let ctor_levels =
@@ -484,9 +484,10 @@ let interp_mutual_inductive_gen env0 ~template udecl (uparamsl,paramsl,indl) not
     List.init (List.length indl) EConstr.(fun i -> mkApp (mkRel (i + 1 + nuparams), uargs))
     @ List.init nuparams EConstr.(fun i -> mkRel (i + 1)) in
   let generalize_constructor c = EConstr.Unsafe.to_constr (EConstr.Vars.substnl uparam_subst nparams c) in
+  let cimpls = List.map pi3 constructors in
   let constructors = List.map (fun (cnames,ctypes,cimpls) ->
-                         (cnames,List.map generalize_constructor ctypes,cimpls))
-                       constructors
+      (cnames,List.map generalize_constructor ctypes))
+      constructors
   in
   let ctx_params = ctx_params @ ctx_uparams in
   let userimpls = useruimpls @ userimpls in
@@ -497,9 +498,10 @@ let interp_mutual_inductive_gen env0 ~template udecl (uparamsl,paramsl,indl) not
   (* Try further to solve evars, and instantiate them *)
   let sigma = solve_remaining_evars all_and_fail_flags env_params sigma in
   let impls =
-    List.map2 (fun indimpls (_,_,cimpls) ->
+    List.map2 (fun indimpls cimpls ->
         indimpls, List.map (fun impls ->
-            userimpls @ impls) cimpls) indimpls constructors
+            userimpls @ impls) cimpls)
+      indimpls cimpls
   in
   let mie, pl = interp_mutual_inductive_constr ~template ~sigma ~ctx_params ~udecl ~arities ~arityconcl ~constructors ~env_ar_params ~poly ~finite ~cumulative ~private_ind ~indnames in
   (mie, pl, impls)
diff --git a/vernac/comInductive.mli b/vernac/comInductive.mli
index 418d971558..cc104b3762 100644
--- a/vernac/comInductive.mli
+++ b/vernac/comInductive.mli
@@ -57,7 +57,7 @@ val interp_mutual_inductive_constr
   -> indnames:Names.Id.t list
   -> arities:EConstr.t list
   -> arityconcl:(bool * EConstr.ESorts.t) option list
-  -> constructors:(Names.Id.t list * Constr.constr list * 'a list list) list
+  -> constructors:(Names.Id.t list * Constr.constr list) list
   -> env_ar_params:Environ.env
   (** Environment with the inductives and parameters in the rel_context *)
   -> cumulative:bool
-- 
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