How to use strings for OSLogMessage?

Question

Given the following two lines, XCode is showing an error for the second line saying Cannot convert value of type 'String' to expected argument type 'OSLogMessage'.

logger.info("Device found:")
logger.info(String(describing: device))

Can someone please explain why this error is shown? In both cases, the parameter is of type String. (I guess)

Currently, I fix this by using string interpolation. But this does not feel right. Is there a better way than:

logger.info("\(String(describing: device))")

Answer 1

The (surprising, perhaps) answer is that OSLog doesn't allow an arbitrary string to be logged for privacy reasons. It's not a language limitation but a policy to control the availability of user data in logs.