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[SR-1222] A tuple of Equatable types should be Equatable #43830

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swift-ci opened this issue Apr 13, 2016 · 2 comments
Open

[SR-1222] A tuple of Equatable types should be Equatable #43830

swift-ci opened this issue Apr 13, 2016 · 2 comments
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compiler The Swift compiler in itself conditional conformances Feature → protocol → conformances: conditional conformances conformances Feature → protocol: protocol conformances derived conformances Feature → protocol → conformances: derived conformances aka synthesized conformances Equatable Area → standard library: The `Equatable` protocol feature A feature request or implementation swift evolution proposal needed Flag → feature: A feature that warrants a Swift evolution proposal tuples Feature: tuples

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@swift-ci
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Previous ID SR-1222
Radar rdar://problem/13822406
Original Reporter svanimpe (JIRA User)
Type New Feature

Attachment: Download

Environment

Xcode 7.3

Additional Detail from JIRA
Votes 11
Component/s Compiler
Labels New Feature
Assignee None
Priority Medium

md5: 737b988db4d23991ee46fada4989dfd8

is duplicated by:

  • SR-1997 Tuples with optional parameter aren't equatable
  • SR-4191 Compiler cannot resolve equatable tuples if they are an associatedtype of a protocol
  • SR-6355 Tuples of Equatable should be Equatable
  • SR-6802 Tuples of Equatable types aren't Equatable
  • SR-7942 Automatic conformance for tuples with Equatable member types

relates to:

  • SR-8281 enums with associated tuple values can not automatically implement Equatable
  • SR-9925 Void is not equatable (enum cases with Void associated values can't auto-synthesise Equatable)

Issue Description:

As the attached screenshots show: the method `contains(_: Self.Generator.Element) -> Bool` is not available for arrays of tuples. Its counterpart that takes a predicate is available. The same is true for the `indexOf` methods.
@belkadan
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Tuples don't conform to Equatable, so there's no valid implementation of contains.

@swift-ci
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Comment by Steven Van Impe (JIRA)

That's really confusing now that == works. Please consider this bug report a feature request 🙂

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
@AnthonyLatsis AnthonyLatsis added feature A feature request or implementation conformances Feature → protocol: protocol conformances derived conformances Feature → protocol → conformances: derived conformances aka synthesized conformances Equatable Area → standard library: The `Equatable` protocol tuples Feature: tuples swift evolution proposal needed Flag → feature: A feature that warrants a Swift evolution proposal conditional conformances Feature → protocol → conformances: conditional conformances and removed new feature labels Jan 29, 2023
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compiler The Swift compiler in itself conditional conformances Feature → protocol → conformances: conditional conformances conformances Feature → protocol: protocol conformances derived conformances Feature → protocol → conformances: derived conformances aka synthesized conformances Equatable Area → standard library: The `Equatable` protocol feature A feature request or implementation swift evolution proposal needed Flag → feature: A feature that warrants a Swift evolution proposal tuples Feature: tuples
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@belkadan @swift-ci @AnthonyLatsis