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[SR-11482] Some protocols cannot be conformed by code-block-local types #53882

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swift-ci opened this issue Sep 17, 2019 · 1 comment
Closed

[SR-11482] Some protocols cannot be conformed by code-block-local types #53882

swift-ci opened this issue Sep 17, 2019 · 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 conformances Feature → protocol: protocol conformances duplicate Resolution: Duplicates another issue nested types Feature: nested types operators Feature: operators swift 5.0 type checker Area → compiler: Semantic analysis unexpected error Bug: Unexpected error

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@swift-ci
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swift-ci commented Sep 17, 2019 •
edited by AnthonyLatsis

Previous ID SR-11482
Radar None
Original Reporter CTMacUser (JIRA User)
Type Bug
Status Resolved
Resolution Duplicate
Environment

Xcode 10.3 (10G8) (with its default version of Swift 5) on a macOS 10.14.6 system.

Additional Detail from JIRA
Votes 1
Component/s Compiler
Labels Bug
Assignee None
Priority Medium

md5: 2b5818eb169686afb4d2d10ada1048f6

duplicates:

  • SR-3092 Function-level nested types cannot conform to Equatable

Issue Description:

func foo() {
  struct Bar: Comparable {
    static func == (lhs: Bar, rhs: Bar) -> Bool { return true }
    static func < (lhs: Bar, rhs: Bar) -> Bool { return true }
  }
}

The compiler complains about Comparable conformance not being satisfied. But the Equatable conformance works! There's more at the original forum thread.
@belkadan
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I'm pretty sure the Equatable one doesn't work either—you're getting a synthesized implementation rather than the one that's already there.

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@AnthonyLatsis AnthonyLatsis closed this as not planned Won't fix, can't repro, duplicate, stale Jun 3, 2022
@AnthonyLatsis AnthonyLatsis added duplicate Resolution: Duplicates another issue type checker Area → compiler: Semantic analysis conformances Feature → protocol: protocol conformances operators Feature: operators nested types Feature: nested types unexpected error Bug: Unexpected error swift 5.0 labels Feb 22, 2023
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Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself conformances Feature → protocol: protocol conformances duplicate Resolution: Duplicates another issue nested types Feature: nested types operators Feature: operators swift 5.0 type checker Area → compiler: Semantic analysis unexpected error Bug: Unexpected error
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@belkadan @swift-ci @AnthonyLatsis