Cannot assign value of type UnsafeMutablePointer ObjCBool in Swift

YichenBman Published at Dev

166

YichenBman

I'm unfamiliar with Objective C.

I'm using a private framework and need to be able to change one of the properties from within my Swift code.

The property is declared in Objective C this way:

@property (nonatomic, assign) BOOL *isSSNField;

in swift I am trying to change the value of the property this way:

myClass.isSSNField = true

I am getting this error

Cannot assign a value of type 'Bool' to a value of type 'UnsafeMutablePointer<ObjcBool>'

I'm not sure where to go from here, or why I'm getting this error at all

matt

I've never seen anything like the situation you describe, and personally I'm tempted to say the situation doesn't exist; I have never seen a BOOL* property or ivar in Objective-C in my life (and I'm darned old, believe me). However, if you insist: I haven't tested this, but I think you could say something like this:

var ok = UnsafeMutablePointer<ObjCBool>.alloc(1)
ok[0] = false // or true
let val = ok
myClass.isSSNField = val

However, although I think that will compile, I'm rather unclear on what the implications of doing it would be. It could cause the universe to collapse to a black hole, so be careful.

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edited at2020-10-22

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