Michael Tsai on Twitter: "@griotspeak @mpweiher Analogies…it’s like saying that cars are crashing, so let's ban seat belts because then safer cars will be built."

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Marcel Weiher ‏@mpweiher 25 Dec 2015

"The idea of locking things down further, with final as the default, is insane" — @mjtsai http://mjtsai.com/blog/2015/12/21/swift-proposal-for-default-final/ … Couldn't agree more.
10 retweets 14 likes
TJ Usiyan ‏@griotspeak 25 Dec 2015

@mpweiher @mjtsai I disagree. Explicitly supporting subclassing makes sense to me. I understand not wanting it but the idea is *not* insane.
2 likes
Michael Tsai ‏@mjtsai 25 Dec 2015

@griotspeak @mpweiher Making it explicit will inevitably prevent some workarounds from being possible. Can’t foresee where bugs will be.
TJ Usiyan ‏@griotspeak 25 Dec 2015

@mjtsai @mpweiher that is unfortunate. Subclassing a type not meant to be subclasses is also unfortunate.
1 like
Marcel Weiher ‏@mpweiher 25 Dec 2015

@griotspeak Subclassing a type not intended for it may be unfortunate, it may be necessary/desirable. Either way it is fixable. @mjtsai
1 like
TJ Usiyan ‏@griotspeak 25 Dec 2015

@mpweiher @mjtsai I simply believe that vendors who don't explicitly open their classes should received increases pressure to *fix* them
1 like
TJ Usiyan ‏@griotspeak 25 Dec 2015

@mpweiher @mjtsai This should lead to them opting into subclassing (well done or otherwise) or fixing their types.
TJ Usiyan ‏@griotspeak 25 Dec 2015

@mpweiher @mjtsai If the vendor does *neither* then they are **truly** terrible vendors and the language should *not* cater to them.
Marcel Weiher ‏@mpweiher 25 Dec 2015

@griotspeak "I'll throw myself off a cliff in order to force the vendor to install safety nets" doesn't appeal as a sound strategy. @mjtsai
1 like
TJ Usiyan ‏@griotspeak 25 Dec 2015

@mpweiher @mjtsai The proposed change is *not* 'throwing myself off a cliff'. It just isn't. It is forcing explicitness.

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