"Cast from AEXMLElement to unrelated type ___ always fails" about aexml HOT 8 CLOSED

Hello @aaronpk,

I have looked into this problem, and I believe it's a possible bug on Apple side.

What I found out is that it's related to having custom subscript while inheriting from NSObject.

If you paste this code into Xcode Playground you'll see the same warning, but it will go away if you just remove inheritance from NSObject.

import Foundation

class ClassWithSubscript: NSObject {
    subscript(key: String) -> ClassWithSubscript {
        return self
    }
}

func testFunc(settings: Dictionary<String, AnyObject>) {
    if let nested = settings["foo"] {
        if let foo = nested["bar"] {
            print(foo as! Int)
        }
    }
}

What do you think? Should we report this as a bug?

from aexml.

i think it should be reported as a bug - the interesting thing is that it occurs in both 7.0 and 7.1 (swift 2 and 2.1).

from aexml.

Any updates on this? I run into this simply using subscript on a dictionary object, not even a custom class of mine.

from aexml.

I am having an issue with this as well. Has anybody found a suitable workaround?

from aexml.

Ok, so I just reported this bug to Apple. ID: 23694764

from aexml.

I'm just going through and changing all of my [subscript] syntaxes to .valueForKey to work around it.

from aexml.

Well i was also facing this issue, but then i was using Cocoapods.
Later i added the library manually and the issue was gone automatically.
I guess that something is wrong when we use it as a framework(please back me up if m right, otherwise enlightening is appreciated)

from aexml.

So, without some real solution from Apple (this bug is still open), I removed inheritance from NSObject which in fact fixed this warning, so this issue can be closed now. Thanks for dicsussion!

from aexml.