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[SR-11145] Also synthesise default CodingKeys when only conforming to Encodable OR Decodable #53541

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swift-ci opened this issue Jul 16, 2019 · 1 comment
Open

[SR-11145] Also synthesise default CodingKeys when only conforming to Encodable OR Decodable #53541

swift-ci opened this issue Jul 16, 2019 · 1 comment
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Codable Area → standard library: `Codable` and co. compiler The Swift compiler in itself improvement

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Previous ID SR-11145
Radar None
Original Reporter MrLotU (JIRA User)
Type Improvement
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Improvement, Codable
Assignee bendjones (JIRA)
Priority Medium

md5: ea038e2f6a5b30bf37c1cd332016a054

Issue Description:

Right now when conforming a type to Codable the compiler auto syntesizes the CodingKeys. However, if you conform to either Encodable or Decodable, this does not happen.

I think it'd be a great addition to have the auto synthesised CodingKeys also when not conforming to both Encodable and Decodable.
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Comment by Owen Voorhees (JIRA)

SE-0166 says:
Types conforming to Encodable whose properties are all Encodable get an automatically generated String-backed CodingKey enum mapping properties to case names. Similarly for Decodable types whose properties are all Decodable

So this could maybe considered a bug fix which doesn't require an evolution proposal?

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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Codable Area → standard library: `Codable` and co. compiler The Swift compiler in itself improvement
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