Writing for Mac Cocoa in Objective-C, I have a subclass of NSApplication
that overrides sendAction:to:from:. The override often ends up calling
[super sendAction: anAction to: aTarget from: sender]
and when aTarget is nil, UB Sanitizer says "Null pointer passed as
argument 1, which is declared to never be null". Yet the declaration in
the NSApplication header (and in my subclass) is
- (BOOL)sendAction:(SEL)action to:(nullable id)target from:(nullable
id)sender;
so it should be fine for the target argument to be nil, assuming that's
the one it means when it says "argument 1". I thought maybe the
compiler wasn't sure about the type of "super", so I tried casting it to
NSApplication*, but that's not allowed. Am I missing anything?
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