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-rw-r--r--engine/eConstr.ml5
-rw-r--r--engine/eConstr.mli1
-rw-r--r--engine/termops.ml12
-rw-r--r--engine/termops.mli10
-rw-r--r--engine/uState.ml20
5 files changed, 40 insertions, 8 deletions
diff --git a/engine/eConstr.ml b/engine/eConstr.ml
index a65b3941ef..9ac16b5b48 100644
--- a/engine/eConstr.ml
+++ b/engine/eConstr.ml
@@ -695,6 +695,10 @@ let cast_rel_context :
type a b. (a,b) eq -> (a, a) Rel.pt -> (b, b) Rel.pt =
fun Refl x -> x
+let cast_rec_decl :
+ type a b. (a,b) eq -> (a, a) Constr.prec_declaration -> (b, b) Constr.prec_declaration =
+ fun Refl x -> x
+
let cast_named_decl :
type a b. (a,b) eq -> (a, a) Named.Declaration.pt -> (b, b) Named.Declaration.pt =
fun Refl x -> x
@@ -817,6 +821,7 @@ let it_mkLambda_or_LetIn t ctx = List.fold_left (fun c d -> mkLambda_or_LetIn d
let push_rel d e = push_rel (cast_rel_decl unsafe_eq d) e
let push_rel_context d e = push_rel_context (cast_rel_context unsafe_eq d) e
+let push_rec_types d e = push_rec_types (cast_rec_decl unsafe_eq d) e
let push_named d e = push_named (cast_named_decl unsafe_eq d) e
let push_named_context d e = push_named_context (cast_named_context unsafe_eq d) e
let push_named_context_val d e = push_named_context_val (cast_named_decl unsafe_eq d) e
diff --git a/engine/eConstr.mli b/engine/eConstr.mli
index 30de748a19..6fa338c73d 100644
--- a/engine/eConstr.mli
+++ b/engine/eConstr.mli
@@ -251,6 +251,7 @@ end
val push_rel : rel_declaration -> env -> env
val push_rel_context : rel_context -> env -> env
+val push_rec_types : (t, t) Constr.prec_declaration -> env -> env
val push_named : named_declaration -> env -> env
val push_named_context : named_context -> env -> env
diff --git a/engine/termops.ml b/engine/termops.ml
index a71bdff31e..40b3d0d8b6 100644
--- a/engine/termops.ml
+++ b/engine/termops.ml
@@ -1463,6 +1463,18 @@ let prod_applist sigma c l =
| _ -> anomaly (Pp.str "Not enough prod's.") in
app [] c l
+let prod_applist_assum sigma n c l =
+ let open EConstr in
+ let rec app n subst c l =
+ if Int.equal n 0 then
+ if l == [] then Vars.substl subst c
+ else anomaly (Pp.str "Not enough arguments.")
+ else match EConstr.kind sigma c, l with
+ | Prod(_,_,c), arg::l -> app (n-1) (arg::subst) c l
+ | LetIn(_,b,_,c), _ -> app (n-1) (Vars.substl subst b::subst) c l
+ | _ -> anomaly (Pp.str "Not enough prod/let's.") in
+ app n [] c l
+
(* Combinators on judgments *)
let on_judgment f j = { uj_val = f j.uj_val; uj_type = f j.uj_type }
diff --git a/engine/termops.mli b/engine/termops.mli
index c1600abe80..a3559a693b 100644
--- a/engine/termops.mli
+++ b/engine/termops.mli
@@ -159,8 +159,18 @@ val eta_reduce_head : Evd.evar_map -> constr -> constr
(** Flattens application lists *)
val collapse_appl : Evd.evar_map -> constr -> constr
+(** [prod_applist] [forall (x1:B1;...;xn:Bn), B] [a1...an] @return [B[a1...an]] *)
val prod_applist : Evd.evar_map -> constr -> constr list -> constr
+(** In [prod_applist_assum n c args], [c] is supposed to have the
+ form [∀Γ.c] with [Γ] of length [m] and possibly with let-ins; it
+ returns [c] with the assumptions of [Γ] instantiated by [args] and
+ the local definitions of [Γ] expanded.
+ Note that [n] counts both let-ins and prods, while the length of [args]
+ only counts prods. In other words, varying [n] changes how many
+ trailing let-ins are expanded. *)
+val prod_applist_assum : Evd.evar_map -> int -> constr -> constr list -> constr
+
(** Remove recursively the casts around a term i.e.
[strip_outer_cast (Cast (Cast ... (Cast c, t) ... ))] is [c]. *)
val strip_outer_cast : Evd.evar_map -> constr -> constr
diff --git a/engine/uState.ml b/engine/uState.ml
index 6f2b3c4b26..4b650c9c94 100644
--- a/engine/uState.ml
+++ b/engine/uState.ml
@@ -201,14 +201,18 @@ let process_universe_constraints ctx cstrs =
| None -> user_err Pp.(str "Algebraic universe on the right")
| Some r' ->
if Univ.Level.is_small r' then
- let levels = Univ.Universe.levels l in
- let fold l' local =
- let l = Univ.Universe.make l' in
- if Univ.Level.is_small l' || is_local l' then
- equalize_variables false l l' r r' local
- else raise (Univ.UniverseInconsistency (Univ.Le, l, r, None))
- in
- Univ.LSet.fold fold levels local
+ if not (Univ.Universe.is_levels l)
+ then
+ raise (Univ.UniverseInconsistency (Univ.Le, l, r, None))
+ else
+ let levels = Univ.Universe.levels l in
+ let fold l' local =
+ let l = Univ.Universe.make l' in
+ if Univ.Level.is_small l' || is_local l' then
+ equalize_variables false l l' r r' local
+ else raise (Univ.UniverseInconsistency (Univ.Le, l, r, None))
+ in
+ Univ.LSet.fold fold levels local
else
Univ.enforce_leq l r local
end