<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Ouch!<div class=""><br class=""></div><div class="">This is a side effect of ObjC lightweight generics being imported as Swift generics in Swift 3.0.</div><div class=""><br class=""></div><div class="">Since there is no common superclass that satisfies NSCopying & NSSecureCoding and the fact that NSSecureCoding has static requirements means you can’t do it (at least without hacks such as extending NSObject to conform to both protocols or creating a wrapper class and creating a non-generic subclass of CNLabeledValue and using it instead).</div><div class=""><br class=""></div><div class="">For now, you have to use <br class=""><div class=""><div dir="ltr" class=""><div class=""><div class=""><span class="" style="font-family: monospace, monospace;"><br class=""></span></div><div class=""><span class="" style="font-family: monospace, monospace;">var toExcludeOrCopy : AnyObject?</span></div></div></div></div><div class=""><br class=""></div><div class="">This is worthy of a bug report and points to a serious issue: The “limitations” that result from importing ObjC lightweight generics as Swift generics. One possible solution can be implementation of “<a href="https://lists.swift.org/pipermail/swift-evolution/Week-of-Mon-20170102/029919.html" class="">Enhanced Existentials</a>”.</div><div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jan 9, 2017, at 11:23 AM, German Laullon via swift-users <<a href="mailto:swift-users@swift.org" class="">swift-users@swift.org</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class="">Hi All<div class=""><br class=""></div><div class="">I just upgrade to Swift 3. After open and convert my codes I found lots of errors. One of them is about CNLabeledValue.<div class=""> </div><div class="">With Swift 2.3, it works well with:</div><div class=""> </div><div class=""><font face="monospace, monospace" class="">var toExcludeOrCopy : CNLabeledValue? </font></div><div class=""> </div><div class="">With Swift 3, it gives me the error message:</div><div class=""><font face="monospace, monospace" class="">Reference to generic type 'CNLabeledValue' requires arguments in <...>.</font></div><div class=""><font face="monospace, monospace" class=""><br class=""></font></div><div class="">After I fixed it with XCode, it changed to:</div><div class=""> <span style="font-family:monospace,monospace" class="">var toExcludeOrCopy : CNLabeledValue<AnyObject>? </span></div><div class=""> </div><div class="">However, Xcode gives me error message with this fix:</div><div class=""><font face="monospace, monospace" class="">Type 'AnyObject' does not conform to protocol 'NSCopying'.</font></div><div class=""><br class=""></div><div class="">I know the error is because of the generic type but I don't know how to declare with CNLabeledValue. My purpose is to store any the CNLabeledValue including phone number, email, address etc to one var.</div><div class="">Any help will be appreciate.</div><div class=""><div class="gmail_signature"><div dir="ltr" class=""><div class=""><div dir="ltr" class=""><div class=""><br class=""></div><div class="">Germán Laullón<br class=""><br class=""></div></div></div></div></div></div>
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