junrushao commented on code in PR #438:
URL: https://github.com/apache/tvm-ffi/pull/438#discussion_r2791488179
##########
include/tvm/ffi/reflection/registry.h:
##########
@@ -460,6 +460,49 @@ struct init {
}
};
+/*!
+ * \brief Helper class to enable copy support for object types.
+ *
+ * This helper is used with `ObjectDef::def()` to register
`__ffi_shallow_copy__`
+ * as an instance method. This enables `__copy__`, `__deepcopy__`, and
`__replace__`
+ * in Python via the `copy` module.
+ *
+ * The shallow copy uses the C++ copy constructor of the object type:
+ * `make_object<Class>(*self)`.
+ *
+ * Example usage:
+ *
+ * \code{.cpp}
+ * refl::ObjectDef<MyObject>()
+ * .def(refl::enable_copy())
+ * .def(refl::init<int64_t, std::string>());
+ * \endcode
+ *
+ * \note The object type must have a copy constructor.
+ */
+struct enable_copy {
Review Comment:
alternatively, let's enable copy by default for all object types which are
copy_constructible
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