> Of course, if you’re worried about the performance costs associated with that
> extra method call, you might want to include a keyword, such as “observable”,
> and only generate the method call(s) if that keyword is on the property.
I strongly agree that Swift should have/keep a possibility to create properties
with no performance penalty — but I guess comfort is more important, so I'd
rather make observable the default and offer a possibility to disable it.
Tino
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