[swift-users] access violation when weak variable

[Ray Fix via swift-users]

Hi!

When I make a variable weak in Xcode 8 (both beta 1 and beta 2) I get a access 
violation.  I think this is a bug, but want to make sure I am not missing 
something.

Best regards,
Ray

//: Playground - noun: a place where people can play

import UIKit

class Person: CustomStringConvertible {
    var name: String
    weak var parent: Person?     /// If I remove weak, no crash in Xcode 8 beta 
2, but leaks
    var children: [Person] = [] {
        didSet {
            children.forEach { $0.parent = self }
        }
    }
    
    init(name: String) {
        self.name = name
        print("initialized \(name)")
    }
    deinit {
        print("deinit \(name)")
    }
    var description: String {
        return name
    }
}

do {
    let frank = Person(name: "Frank")
    let lisa = Person(name: "Lisa")
    frank.children = [lisa]                   /// KABOOM!
}

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