[swift-evolution] Final by default for classes and methods

[Charles Srstka]

> On Dec 23, 2015, at 8:15 PM, Matthew Johnson via swift-evolution <swift-evolution at swift.org> wrote:
> 
> I’m not trying to force my opinion on anyone.  I’m just making a case for the advantages of a particular default.  Changing the default does not break inheritance at all.  Nobody has to use the default when it doesn’t fit the design they wish to implement. 

I disagree; changing the default will largely break inheritance, because hardly anything (in pure-Swift frameworks; I know that Obj-C will still be what it is) will be overridable anymore, unless the framework author specifically anticipated your use case. Which when we’re dealing with human developers, isn’t necessarily going to be the case.

Charles

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