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-rw-r--r--library/declare.ml18
-rw-r--r--vernac/command.ml5
-rw-r--r--vernac/discharge.ml28
3 files changed, 29 insertions, 22 deletions
diff --git a/library/declare.ml b/library/declare.ml
index f3150174c..fcaadaa6e 100644
--- a/library/declare.ml
+++ b/library/declare.ml
@@ -356,6 +356,21 @@ let dummy_inductive_entry (_,m) = ([],{
mind_entry_private = None;
})
+(* reinfer subtyping constraints for inductive after section is dischared. *)
+let infer_inductive_subtyping (pth, mind_ent) =
+ if mind_ent.mind_entry_polymorphic then
+ begin
+ let env = Global.env () in
+ let env' =
+ Environ.push_context (Univ.UInfoInd.univ_context mind_ent.mind_entry_universes) env
+ in
+ let (env'', typed_params) = Typeops.infer_local_decls env' (mind_ent.mind_entry_params) in
+ let evd = Evd.from_env env'' in
+ (pth, Inductiveops.infer_inductive_subtyping env'' evd mind_ent)
+ end
+ else (pth, mind_ent)
+
+
type inductive_obj = Dischargedhypsmap.discharged_hyps * mutual_inductive_entry
let inInductive : inductive_obj -> obj =
@@ -365,7 +380,8 @@ let inInductive : inductive_obj -> obj =
open_function = open_inductive;
classify_function = (fun a -> Substitute (dummy_inductive_entry a));
subst_function = ident_subst_function;
- discharge_function = discharge_inductive }
+ discharge_function = discharge_inductive;
+ rebuild_function = infer_inductive_subtyping }
let declare_projections mind =
let spec,_ = Inductive.lookup_mind_specif (Global.env ()) (mind,0) in
diff --git a/vernac/command.ml b/vernac/command.ml
index 35b75370e..2d4f05134 100644
--- a/vernac/command.ml
+++ b/vernac/command.ml
@@ -660,7 +660,10 @@ let interp_mutual_inductive (paramsl,indl) notations poly prv finite =
mind_entry_private = if prv then Some false else None;
mind_entry_universes = ground_uinfind;
}
- in (Inductiveops.infer_inductive_subtyping env_ar_params evd mind_ent), pl, impls
+ in
+ (if poly then
+ Inductiveops.infer_inductive_subtyping env_ar_params evd mind_ent
+ else mind_ent), pl, impls
(* Very syntactical equality *)
let eq_local_binders bl1 bl2 =
diff --git a/vernac/discharge.ml b/vernac/discharge.ml
index 21ffa4cbf..c7a741c13 100644
--- a/vernac/discharge.ml
+++ b/vernac/discharge.ml
@@ -111,24 +111,12 @@ let process_inductive (sechyps,abs_ctx) modlist mib =
| Some None -> Some None
| None -> None
in
- let mind_ent =
- { mind_entry_record = record;
- mind_entry_finite = mib.mind_finite;
- mind_entry_params = params';
- mind_entry_inds = inds';
- mind_entry_polymorphic = mib.mind_polymorphic;
- mind_entry_private = mib.mind_private;
- mind_entry_universes = univ_info_ind
- }
- in
- if mib.mind_polymorphic then
- begin
- let env = Global.env () in
- let env' = Environ.push_context univs env in
- let (env'', typed_params) = Typeops.infer_local_decls env' params' in
- let evd = Evd.from_env env'' in
- Inductiveops.infer_inductive_subtyping env'' evd mind_ent
- end
- else
- mind_ent
+ { mind_entry_record = record;
+ mind_entry_finite = mib.mind_finite;
+ mind_entry_params = params';
+ mind_entry_inds = inds';
+ mind_entry_polymorphic = mib.mind_polymorphic;
+ mind_entry_private = mib.mind_private;
+ mind_entry_universes = univ_info_ind
+ }