commit 1c6fe002e37b320594ac76d80dda0b74aedcf7a7
author AdityaK <appujee@google.com> Mon Oct 23 10:52:32 2023 -0700
committer Aditya Kumar <appujee@google.com> Mon Oct 23 21:42:14 2023 +0000
tree 9c7b33c8ee1800125aff91085dafb2f39c00597b
parent 97c05f176eaa4f68e78f29eeb39c156274c244d8

Fix visitor

```
external/libcxx/include/variant:587:19: error: static assertion failed due to requirement 'is_invocable_v<(anonymous namespace)::Visitor<(lambda at external/libchrome-gestures/src/activity_log.cc:310:7), (lambda at external/libchrome-gestures/src/activity_log.cc:314:7), (lambda at external/libchrome-gestures/src/activity_log.cc:318:7), (lambda at external/libchrome-gestures/src/activity_log.cc:322:7), (lambda at external/libchrome-gestures/src/activity_log.cc:326:7)>, const unsigned char &>': `std::visit` requires the visitor to be exhaustive.
  587 |     static_assert(is_invocable_v<_Visitor, _Values...>,

```

Change-Id: Idc9df90d9ca653c241e42818c5a80857ed945730

services/inputflinger/NotifyArgs.cpp

diff --git a/services/inputflinger/NotifyArgs.cpp b/services/inputflinger/NotifyArgs.cpp
index 408fbed..35d60ea 100644
--- a/services/inputflinger/NotifyArgs.cpp
+++ b/services/inputflinger/NotifyArgs.cpp
@@ -233,7 +233,7 @@
 
 // Helper to std::visit with lambdas.
 template <typename... V>
-struct Visitor : V... {};
+struct Visitor : V... { using V::operator()...; };
 // explicit deduction guide (not needed as of C++20)
 template <typename... V>
 Visitor(V...) -> Visitor<V...>;