Imported Upstream version 8.6upstream/8.6

1 files changed, 22 insertions, 0 deletions

diff --git a/test-suite/success/ssrpattern.v b/test-suite/success/ssrpattern.v
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+++ b/test-suite/success/ssrpattern.v
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+Require Import ssrmatching.
+
+(*Set Debug SsrMatching.*)
+
+Tactic Notation "at" "[" ssrpatternarg(pat) "]" tactic(t) :=
+  let name := fresh in
+  let def_name := fresh in
+  ssrpattern pat;
+  intro name;
+  pose proof (refl_equal name) as def_name;
+  unfold name at 1 in def_name;
+  t def_name;
+  [ rewrite <- def_name | idtac.. ];
+  clear name def_name.
+
+Lemma test (H : True -> True -> 3 = 7) : 28 = 3 * 4.
+Proof.
+at [ X in X * 4 ] ltac:(fun place => rewrite -> H in place).
+- reflexivity.
+- trivial.
+- trivial.
+Qed.