Project import generated by Copybara.

GitOrigin-RevId: f9a66589eaf652bb93f8e37ed9e4da26e59ef214
2020-10-19 13:23:25 -04:00
parent cccf6244d3
commit c828392681
68 changed files with 890 additions and 487 deletions
@@ -439,13 +439,18 @@ struct is_concrete_proto_t
 template <typename T>
 struct MessageRegistrationImpl {
  static NoDestructor<mediapipe::RegistrationToken> registration;
+  // This could have been a lambda inside registration's initializer below, but
+  // MSVC has a bug with lambdas, so we put it here as a workaround.
+  static std::unique_ptr<Holder<T>> CreateMessageHolder() {
+    return absl::make_unique<Holder<T>>(new T);
+  }
 };

 // Static members of template classes can be defined in the header.
 template <typename T>
 NoDestructor<mediapipe::RegistrationToken>
    MessageRegistrationImpl<T>::registration(MessageHolderRegistry::Register(
-        T{}.GetTypeName(), [] { return absl::make_unique<Holder<T>>(new T); }));
+        T{}.GetTypeName(), MessageRegistrationImpl<T>::CreateMessageHolder));

 // For non-Message payloads, this does nothing.
 template <typename T, typename Enable = void>