Use NSStringFromClass if the argument is of type "Class."

[davidmurray]

No description provided.

[rpetrich]

Does NSStringFromClass initialize the class? Ideally %log() shouldn't initialize classes, and should handle nulls (as it does now)

[kirb]

This was brought up a while back, but I can't seem to find where the PR is…

CFLog already supports Class when used with %@. This isn't needed.

[rpetrich]

It does so via CFCopyDescription, which will initialize the class.

[kirb]

Ah, ick.

[DHowett]

Using class_getName with %s may be more appropriate to avoid initializing the class. That will, however, be runtime-specific.

[DHowett]

However, if %log is being called, you're in a replacement method body. It's fairly likely that the class is either an argument or self, and it'll be initialized by the original code almost immediately if it isn't already. Methods don't get called on noninitialized classes, after all.