From b0c4d25cc0722e17f6e18fdafd64a81d51f1d006 Mon Sep 17 00:00:00 2001
From: Robbert Krebbers <mail@robbertkrebbers.nl>
Date: Mon, 12 Aug 2019 13:02:04 +0200
Subject: [PATCH] Fix issue #259.
Based on @Blaisorblade's suggestion.
---
theories/proofmode/ltac_tactics.v | 1 +
1 file changed, 1 insertion(+)
diff --git a/theories/proofmode/ltac_tactics.v b/theories/proofmode/ltac_tactics.v
index 81e03f9a5..f90abdcf5 100644
--- a/theories/proofmode/ltac_tactics.v
+++ b/theories/proofmode/ltac_tactics.v
@@ -573,6 +573,7 @@ Local Tactic Notation "iForallRevert" ident(x) :=
| context [x] => fail 2 "iRevert:" x "is used in hypothesis" H
end) in
iStartProof;
+ first [let _ := type of x in idtac|fail 1 "iRevert:" x "not in scope"];
let A := type of x in
lazymatch type of A with
| Prop => revert x; first [apply tac_pure_revert|err x]
--
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