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From Coq Require Program.Wf.
Section Scope.
#[local] Coercion nat_of_bool (b: bool) : nat :=
if b then 0 else 1.
Check (refl_equal : true = 0 :> nat).
End Scope.
Fail Check 0 = true :> nat.
#[universes(polymorphic)]
Definition ι T (x: T) := x.
Check ι _ ι.
#[universes(polymorphic=no)]
Definition ιι T (x: T) := x.
Fail Check ιι _ ιι.
#[program]
Fixpoint f (n: nat) {wf lt n} : nat := _.
Reset f.
#[program=yes]
Fixpoint f (n: nat) {wf lt n} : nat := _.
Reset f.
#[deprecated(since="8.9.0")]
Ltac foo := foo.
Module M.
#[local] #[universes(polymorphic)] Definition zed := Type.
#[local, universes(polymorphic)] Definition kats := Type.
End M.
Check M.zed@{_}.
Fail Check zed.
Check M.kats@{_}.
Fail Check kats.
Export Set Foo.
#[ export ] Set Foo.
Fail #[ export ] Export Foo.
(* Attribute for Locality specified twice *)
(* Tests for deprecated attribute syntax *)
Set Warnings "-deprecated-attribute-syntax".
#[program=yes]
Fixpoint f (n: nat) {wf lt n} : nat := _.
Reset f.
#[universes(polymorphic=no)]
Definition ιιι T (x: T) := x.
Fail Check ιιι _ ιιι.
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