diff options
Diffstat (limited to 'src/Util/ListUtil.v')
| -rw-r--r-- | src/Util/ListUtil.v | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/Util/ListUtil.v b/src/Util/ListUtil.v index ac6575a4f..b7a5292d8 100644 --- a/src/Util/ListUtil.v +++ b/src/Util/ListUtil.v @@ -12,6 +12,7 @@ Require Export Crypto.Util.Tactics.BreakMatch. Require Export Crypto.Util.Tactics.DestructHead. Require Import Crypto.Util.Tactics.SpecializeBy. Require Import Crypto.Util.Tactics.RewriteHyp. +Require Import Crypto.Util.Tactics.ConstrFail. Import ListNotations. Local Open Scope list_scope. @@ -1910,8 +1911,7 @@ Ltac expand_lists _ := let default_for A := match goal with | _ => (eval lazy in (_ : pointed A)) - | _ => let __ := match goal with _ => idtac "Warning: could not infer a default value for list type" A end in - constr:(I : I) + | _ => constr_fail_with ltac:(fun _ => idtac "Warning: could not infer a default value for list type" A) end in let T := lazymatch goal with |- _ = _ :> ?T => T end in let v := fresh in |