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[SR-7151] Generalize CaseIterable Synthesis for Availability #49699

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CodaFi opened this issue Mar 9, 2018 · 3 comments
Open

[SR-7151] Generalize CaseIterable Synthesis for Availability #49699

CodaFi opened this issue Mar 9, 2018 · 3 comments
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compiler The Swift compiler in itself derived conformances Feature → protocol → conformances: derived conformances aka synthesized conformances feature A feature request or implementation good first issue Good for newcomers improvement

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@CodaFi
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CodaFi commented Mar 9, 2018

Previous ID SR-7151
Radar rdar://problem/43569215
Original Reporter @CodaFi
Type Improvement
Status In Progress
Resolution
Additional Detail from JIRA
Votes 2
Component/s Compiler
Labels Improvement, StarterBug
Assignee None
Priority Medium

md5: 508eab090d1f0026b4428b290a2d40be

relates to:

  • SR-9094 Unavailable enum case with synthesized raw value causes error

Issue Description:

As of this issue, the current implementation of SE-0194 does not synthesize a conformance if any cases contain an availability attribute. This restriction may be lifted at any time by an implementation that maintains the source-order invariant.

enum Rhapsody: CaseIterable {
  @available(*, unavailable)
  case inBlue 
  case hungarian, bohemian
  @available(*, deprecated)
  case onATheme
}
Rhapsody.allCases // [hungarian, bohemian, onATheme]
@tkremenek
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@swift-ci create

@swift-ci
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Comment by Owen Voorhees (JIRA)

Tagging a bug I found while implementing this which will impact most use cases: SR-9094

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@NKorotkov
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Any news on this issue? Swift 5.7, still a problem.

@AnthonyLatsis AnthonyLatsis added derived conformances Feature → protocol → conformances: derived conformances aka synthesized conformances feature A feature request or implementation labels Nov 7, 2022
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compiler The Swift compiler in itself derived conformances Feature → protocol → conformances: derived conformances aka synthesized conformances feature A feature request or implementation good first issue Good for newcomers improvement
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@CodaFi @tkremenek @NKorotkov @swift-ci @AnthonyLatsis