I’m putting together a tiny demo project which subclasses NSDocument. It has
two targets, identical Cocoa macOS apps except one is in Objective-C and the
other in Swift. In the Objective-C target, I override -[NSDocument
willPresentError:] like this:
- (NSError*)willPresentError:(NSError *)error {
NSLog(“Presenting!!”)
...
...
}
and that override is called prior to the display of an error dialog sheet, as
expected.
In the Swift target, with this code:
override func willPresentError(_ error: Error) -> Error {
Swift.print("Presenting!")
...
...
}
running the Swift app in the exact same way, presenting the same error dialog,
this override is never called. It does not log “Presenting!”, and a breakpoint
in there never breaks.
A different print(), in deinit(), logs as expected.
Is my syntax correct? I’m using Xcode 9.0, Swift 4.0.
Thank you!
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