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[SR-8537] NSObject & NSObjectProtocol is not Equatable #51056

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an0 mannequin opened this issue Aug 15, 2018 · 3 comments
Open

[SR-8537] NSObject & NSObjectProtocol is not Equatable #51056

an0 mannequin opened this issue Aug 15, 2018 · 3 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself type checker Area → compiler: Semantic analysis

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@an0
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Mannequin

an0 mannequin commented Aug 15, 2018

Previous ID SR-8537
Radar rdar://problem/33790020
Original Reporter @an0
Type Bug

Attachment: Download

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, TypeChecker
Assignee None
Priority Medium

md5: 2756bbad2d6783185b95f24002637d6f

Issue Description:

NSObject is Equatable but Swift compiler thinks NSObject & NSObjectProtocol is not Equatable. It doesn't make sense.
@belkadan
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Yep, we should make this work.

@swift-ci create

@slavapestov
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It would be nice, but... how? :-)

@belkadan
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belkadan commented Sep 6, 2018

Hm, well…maybe we can at least have the type checker explain that it's not supported and have a fix-it to insert the coercion?

@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 type checker Area → compiler: Semantic analysis
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@slavapestov @belkadan