Language: Dart doesn't allow final class
Description:
Effective dart guidelines mention the following.
AVOID extending a class that isn鈥檛 intended to be subclassed.
Like in java, in this case allowing the class to be marked as final would prevent another class from inheriting it, dart doesn't allow final class.
What would be the side effects if this was allowed?
Would this be a breaking change?
feature
dev-aentgs
All 3 comments
We do have a @sealed annotation for the present. But it's not a hard language feature, just for static analysis.
https://github.com/dart-lang/language/issues/349 is a related issue.
srawlins
on 27 May 2020
👍2
see also #11
Cat-sushi
on 28 May 2020
👍1
See proposed solution at https://github.com/dart-lang/language/issues/704
kevmoo
on 17 Jun 2020
👍1
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Most helpful comment
We do have a @sealed annotation for the present. But it's not a hard language feature, just for static analysis.
https://github.com/dart-lang/language/issues/349 is a related issue.