Interesting. A bit worse than Swift and Objective-C. Objective-C has to promise `nonnull` otherwise it's shown as `ObjectType!` which basically means we treat i

Interesting. A bit worse than Swift and Objective-C. Objective-C has to promise `nonnull` otherwise it's shown as `ObjectType!` which basically means we treat it as non-null but it could be null and can be checked for null. Methods marked `nonnull` can still be nil sometimes, it's just a promise. Hard bugs to fix. Found one in an Apple framework where I could not think of anything else than comparing the address with 0x00000000 to see if it was nil.