diff options
| author | Hugo Herbelin | 2018-10-23 15:59:00 +0200 |
|---|---|---|
| committer | Hugo Herbelin | 2018-10-23 16:46:35 +0200 |
| commit | c76fbecdfe4231ee3e0753c0efe665b1e8a8bba5 (patch) | |
| tree | 7f44f9a0a52125c7e8e12c8f28abd65140fbf4e2 | |
| parent | 10e908144df0c06f3ee182482470d7ac39a6cbc5 (diff) | |
Fixing #8794 (anomaly with abbreviation involving both term and binders).
| -rw-r--r-- | interp/notation_ops.ml | 4 | ||||
| -rw-r--r-- | test-suite/bugs/closed/bug_8794.v | 11 |
2 files changed, 14 insertions, 1 deletions
diff --git a/interp/notation_ops.ml b/interp/notation_ops.ml index ab57176643..7a525f84a5 100644 --- a/interp/notation_ops.ml +++ b/interp/notation_ops.ml @@ -892,7 +892,9 @@ let bind_term_as_binding_env alp (terms,termlists,binders,binderlists as sigma) | GVar id' -> (if not (Id.equal id id') then (fst alp,(id,id')::snd alp) else alp), sigma - | _ -> anomaly (str "A term which can be a binder has to be a variable.") + | t -> + (* The term is a non-variable pattern *) + raise No_match with Not_found -> (* The matching against a term allowing to find the instance has not been found yet *) (* If it will be a different name, we shall unfortunately fail *) diff --git a/test-suite/bugs/closed/bug_8794.v b/test-suite/bugs/closed/bug_8794.v new file mode 100644 index 0000000000..5ff0b30260 --- /dev/null +++ b/test-suite/bugs/closed/bug_8794.v @@ -0,0 +1,11 @@ +(* This used to raise an anomaly in 8.8 *) + +Inductive T := Tau (t : T). + +Notation idT t := (match t with Tau t => Tau t end). + +Lemma match_itree : forall (t : T), t = idT t. +Proof. destruct t; auto. Qed. + +Lemma what (k : unit -> T) : k tt = k tt. +Proof. rewrite match_itree. Abort. |