From f71ec3907c0535bf6831ed60a3656ecbe8ac744f Mon Sep 17 00:00:00 2001
From: Hugo Herbelin
Date: Tue, 25 Feb 2020 07:55:49 +0100
Subject: Fixing residual bug of #11120.

On the principle that a notation to a constant inherits the implicit
arguments of the constant, a non-applied notation should inherit its
next maximal implicit arguments.
---
 interp/constrintern.ml          | 4 +++-
 test-suite/success/Notations2.v | 8 ++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/interp/constrintern.ml b/interp/constrintern.ml
index c39e61083d..8a820293a0 100644
--- a/interp/constrintern.ml
+++ b/interp/constrintern.ml
@@ -2057,7 +2057,9 @@ let internalize globalenv env pattern_mode (_, ntnvars as lvar) c =
        intern env (CAst.make ?loc @@ CPrim (Numeral (SMinus,p)))
     | CNotation (_,(InConstrEntrySomeLevel,"( _ )"),([a],[],[],[])) -> intern env a
     | CNotation (_,ntn,args) ->
-        intern_notation intern env ntnvars loc ntn args
+        let c = intern_notation intern env ntnvars loc ntn args in
+        let x, impl, scopes, l = find_appl_head_data c in
+        apply_impargs x env impl scopes l loc
     | CGeneralization (b,a,c) ->
         intern_generalization intern env ntnvars loc b a c
     | CPrim p ->
diff --git a/test-suite/success/Notations2.v b/test-suite/success/Notations2.v
index f166a53256..382c252727 100644
--- a/test-suite/success/Notations2.v
+++ b/test-suite/success/Notations2.v
@@ -194,3 +194,11 @@ Notation q := @p.
 Check fun A n => q (A * A) (n * n). (* check that argument scopes are propagated *)
 
 End InheritanceArgumentScopes.
+
+Module InheritanceMaximalImplicitPureNotation.
+
+Definition id {A B:Type} (a:B) := a.
+Notation "#" := (@id nat).
+Check # = (fun a:nat => a). (* # should inherit its maximal implicit argument *)
+
+End InheritanceMaximalImplicitPureNotation.
-- 
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