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-rw-r--r--toplevel/obligations.ml19
1 files changed, 12 insertions, 7 deletions
diff --git a/toplevel/obligations.ml b/toplevel/obligations.ml
index 3c0977784d..e8682c1b58 100644
--- a/toplevel/obligations.ml
+++ b/toplevel/obligations.ml
@@ -623,7 +623,7 @@ let declare_obligation prg obl body ty uctx =
let body = prg.prg_reduce body in
let ty = Option.map prg.prg_reduce ty in
match obl.obl_status with
- | Evar_kinds.Expand -> { obl with obl_body = Some (TermObl body) }
+ | Evar_kinds.Expand -> false, { obl with obl_body = Some (TermObl body) }
| Evar_kinds.Define opaque ->
let opaque = if get_proofs_transparency () then false else opaque in
let poly = pi2 prg.prg_kind in
@@ -647,7 +647,7 @@ let declare_obligation prg obl body ty uctx =
in
if not opaque then add_hint false prg constant;
definition_message obl.obl_name;
- { obl with obl_body =
+ true, { obl with obl_body =
if poly then
Some (DefinedObl constant)
else
@@ -815,9 +815,9 @@ let obligation_hook prg obl num auto ctx' _ gr =
let ctx' = match ctx' with None -> prg.prg_ctx | Some ctx' -> ctx' in
let ctx' =
if not (pi2 prg.prg_kind) (* Not polymorphic *) then
- (* This context is already declared globally, we cannot
- instantiate the rigid variables anymore *)
- Evd.abstract_undefined_variables ctx'
+ (* The universe context was declared globally, we continue
+ from the new global environment. *)
+ Evd.evar_universe_context (Evd.from_env (Global.env ()))
else ctx'
in
let prg = { prg with prg_ctx = ctx' } in
@@ -889,8 +889,13 @@ and solve_obligation_by_tac prg obls i tac =
(pi2 !prg.prg_kind) !prg.prg_ctx
in
let uctx = Evd.evar_context_universe_context ctx in
- prg := {!prg with prg_ctx = ctx};
- obls.(i) <- declare_obligation !prg obl t ty uctx;
+ let () = prg := {!prg with prg_ctx = ctx} in
+ let def, obl' = declare_obligation !prg obl t ty uctx in
+ obls.(i) <- obl';
+ if def && not (pi2 !prg.prg_kind) then (
+ (* Declare the term constraints with the first obligation only *)
+ let ctx' = Evd.evar_universe_context (Evd.from_env (Global.env ())) in
+ prg := {!prg with prg_ctx = ctx'});
true
else false
with e when Errors.noncritical e ->