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[SR-13915] Support covariant self for final classes or final methods #56313

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dabrahams opened this issue Nov 28, 2020 · 3 comments
Closed

[SR-13915] Support covariant self for final classes or final methods #56313

dabrahams opened this issue Nov 28, 2020 · 3 comments
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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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@dabrahams
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Previous ID SR-13915
Radar rdar://problem/71912819
Original Reporter @dabrahams
Type Bug
Status Closed
Resolution Duplicate
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug
Assignee None
Priority Medium

md5: 8faaa24a258d9c06bc00e30af22746cc

duplicates:

  • SR-11176 Covariant 'Self' type cannot be referenced from a stored property initializer

Issue Description:

Seems to me there's no reason both of these shouldn't compile:

final class X {
  init() {}
  func f(_: Self) {}
}
 
class X {
  init() {}
  final func f(_: Self) {}
}
@typesanitizer
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@swift-ci
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Comment by Frederick Kellison-Linn (JIRA)

Dupe of https://bugs.swift.org/browse/SR-11176 ?

@AnthonyLatsis
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The final method case should not compile since the class is not final and 'Self' therefore retains its dynamic status.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
This issue was closed.
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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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@dabrahams @typesanitizer @swift-ci @AnthonyLatsis