bkietz commented on a change in pull request #8256:
URL: https://github.com/apache/arrow/pull/8256#discussion_r516761809
##########
File path: r/src/arrow_cpp11.h
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@@ -300,22 +297,65 @@ bool GetBoolOption(const std::string& name, bool
default_);
namespace cpp11 {
template <typename T>
-using enable_if_shared_ptr = typename std::enable_if<
- std::is_same<std::shared_ptr<typename T::element_type>, T>::value,
T>::type;
+std::string r6_class_name(const std::shared_ptr<T>& x);
Review comment:
Is there any way this could get a default using `nameof()`? I think
that'd cover most of the cases like `Field` which don't require dispatch
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