Does not archive after update to swift4.1 and latest xcode and sdk

[SergeyPetrachkov]

❌ /Users/sergeypetrachkov/Money.Cashier.iOS/src/Pods/InputKitSwift/InputKitSwift/LimitedTextView.swift:226:33: value of optional type '((UITextView) -> Bool)?' not unwrapped; did you mean to use '!' or '?'?

flag = realDelegate.textViewShouldEndEditing(textView)
^

❌ /Users/sergeypetrachkov/Money.Cashier.iOS/src/Pods/InputKitSwift/InputKitSwift/LimitedTextView.swift:234:26: value of optional type '((UITextView) -> Void)?' not unwrapped; did you mean to use '!' or '?'?

realDelegate.textViewDidBeginEditing(textView)
^

❌ /Users/sergeypetrachkov/Money.Cashier.iOS/src/Pods/InputKitSwift/InputKitSwift/LimitedTextView.swift:241:26: value of optional type '((UITextView) -> Void)?' not unwrapped; did you mean to use '!' or '?'?

realDelegate.textViewDidEndEditing(textView)
^

❌ /Users/sergeypetrachkov/Money.Cashier.iOS/src/Pods/InputKitSwift/InputKitSwift/LimitedTextView.swift:250:33: value of optional type '((UITextView, NSRange, String) -> Bool)?' (aka 'Optional<(UITextView, _NSRange, String) -> Bool>') not unwrapped; did you mean to use '!' or '?'?

flag = realDelegate.textView(textView, shouldChangeTextIn: range, replacementText: text)
^

❌ /Users/sergeypetrachkov/Money.Cashier.iOS/src/Pods/InputKitSwift/InputKitSwift/LimitedTextView.swift:285:26: value of optional type '((UITextView) -> Void)?' not unwrapped; did you mean to use '!' or '?'?

realDelegate.textViewDidChange(textView)
^

❌ /Users/sergeypetrachkov/Money.Cashier.iOS/src/Pods/InputKitSwift/InputKitSwift/LimitedTextView.swift:292:26: value of optional type '((UITextView) -> Void)?' not unwrapped; did you mean to use '!' or '?'?

realDelegate.textViewDidChangeSelection(textView)
^

❌ /Users/sergeypetrachkov/Money.Cashier.iOS/src/Pods/InputKitSwift/InputKitSwift/LimitedTextView.swift:300:33: value of optional type '((UITextView, URL, NSRange, UITextItemInteraction) -> Bool)?' (aka 'Optional<(UITextView, URL, _NSRange, UITextItemInteraction) -> Bool>') not unwrapped; did you mean to use '!' or '?'?

flag = realDelegate.textView(textView, shouldInteractWith: URL, in: characterRange, interaction: interaction)
^

❌ /Users/sergeypetrachkov/Money.Cashier.iOS/src/Pods/InputKitSwift/InputKitSwift/LimitedTextView.swift:310:33: value of optional type '((UITextView, NSTextAttachment, NSRange, UITextItemInteraction) -> Bool)?' (aka 'Optional<(UITextView, NSTextAttachment, _NSRange, UITextItemInteraction) -> Bool>') not unwrapped; did you mean to use '!' or '?'?

flag = realDelegate.textView(textView, shouldInteractWith: textAttachment, in: characterRange, interaction: interaction)
^

❌ /Users/sergeypetrachkov/Money.Cashier.iOS/src/Pods/InputKitSwift/InputKitSwift/LimitedTextView.swift:319:33: value of optional type '((UITextView, URL, NSRange) -> Bool)?' (aka 'Optional<(UITextView, URL, _NSRange) -> Bool>') not unwrapped; did you mean to use '!' or '?'?

flag = realDelegate.textView(textView, shouldInteractWith: URL, in: characterRange)
^

❌ /Users/sergeypetrachkov/Money.Cashier.iOS/src/Pods/InputKitSwift/InputKitSwift/LimitedTextView.swift:328:33: value of optional type '((UITextView, NSTextAttachment, NSRange) -> Bool)?' (aka 'Optional<(UITextView, NSTextAttachment, _NSRange) -> Bool>') not unwrapped; did you mean to use '!' or '?'?

etc

[SergeyPetrachkov]

when you switch from objc style (conformsTo checks) to swift style and do
if let delegate = self.realDelegate as? UITextFieldDelegate {}
then archiving goes without any problem