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[SR-7025] 'class' in protocols should be deprecated as per SE-156 #49573

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hartbit opened this issue Feb 18, 2018 · 1 comment
Open

[SR-7025] 'class' in protocols should be deprecated as per SE-156 #49573

hartbit opened this issue Feb 18, 2018 · 1 comment
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself

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@hartbit
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hartbit commented Feb 18, 2018

Previous ID SR-7025
Radar None
Original Reporter @hartbit
Type Bug
Additional Detail from JIRA
Votes 1
Component/s Compiler
Labels Bug
Assignee None
Priority Medium

md5: 10889c2a5a29c8ee6648dd5561fb309b

Issue Description:

I noticed the other day that the class keyword is not deprecated as defined in the following paragraph of SE-156:

This proposal merges the concepts of class and AnyObject, which now have the same meaning: they represent an existential for classes. To get rid of the duplication, we suggest only keeping AnyObject around. To reduce source-breakage to a minimum, class could be redefined as typealias class = AnyObject and give a deprecation warning on class for the first version of Swift this proposal is implemented in. Later, class could be removed in a subsequent version of Swift.

Is there a reason this has not been done, or was it just forgotten?
@belkadan
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I'm not sure. I suspect it was a compatibility thing, that we wanted to deprecate it only in Swift 4 mode, and then didn't get around to it. Maybe @slavapestov will remember when he gets back from leave.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself
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@hartbit @belkadan