CustomThunk ("Templates" in Blueprints)

In C++, templates can be used to write generic code for functions that can be used with different data types:

// Template to convert any enum type to a string
template <typename TEnumType>
static FString EnumToString(const TEnumType EnumValue)
{
	const UEnum* EnumPtr = StaticEnum<TEnumType>();
	if (!EnumPtr)
	{
		return NSLOCTEXT("Invalid", "Invalid", "Invalid").ToString();
	}
	return EnumPtr->GetNameStringByIndex(static_cast<int32>(EnumValue));
}

While there is no direct equivalent of template programming in Blueprints, there is a UFUNCTION reflection specifier "CustomThunk" that will allow us to create functions with generic parameters.

The syntax