diff options
Diffstat (limited to 'kernel/indTyping.ml')
| -rw-r--r-- | kernel/indTyping.ml | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/kernel/indTyping.ml b/kernel/indTyping.ml index 06d2e1bb21..2b5409c1ab 100644 --- a/kernel/indTyping.ml +++ b/kernel/indTyping.ml @@ -253,10 +253,11 @@ let unbounded_from_below u cstrs = (starting from the most recent and ignoring let-definitions) is not contributing to the inductive type's sort or is Some u_k if its level is u_k and is contributing. *) -let template_polymorphic_univs ~template_check uctx paramsctxt concl = +let template_polymorphic_univs ~template_check ~ctor_levels uctx paramsctxt concl = let check_level l = if Univ.LSet.mem l (Univ.ContextSet.levels uctx) && - unbounded_from_below l (Univ.ContextSet.constraints uctx) then + unbounded_from_below l (Univ.ContextSet.constraints uctx) && + not (Univ.LSet.mem l ctor_levels) then Some l else None in @@ -302,7 +303,28 @@ let abstract_packets ~template_check univs usubst params ((arity,lc),(indices,sp | Polymorphic _ -> CErrors.anomaly ~label:"polymorphic_template_ind" Pp.(strbrk "Template polymorphism and full polymorphism are incompatible.") in - let param_levels, concl_levels = template_polymorphic_univs ~template_check ctx params min_univ in + let ctor_levels = + let add_levels c levels = Univ.LSet.union levels (Vars.universes_of_constr c) in + let param_levels = + List.fold_left (fun levels d -> match d with + | LocalAssum _ -> levels + | LocalDef (_,b,t) -> add_levels b (add_levels t levels)) + Univ.LSet.empty params + in + Array.fold_left + (fun levels (d,c) -> + let levels = + List.fold_left (fun levels d -> + Context.Rel.Declaration.fold_constr add_levels d levels) + levels d + in + add_levels c levels) + param_levels + splayed_lc + in + let param_levels, concl_levels = + template_polymorphic_univs ~template_check ~ctor_levels ctx params min_univ + in if template_check && List.for_all (fun x -> Option.is_empty x) param_levels && Univ.LSet.is_empty concl_levels then CErrors.anomaly ~label:"polymorphic_template_ind" |