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[SR-10541] "Swift Programming Language" Book has mistaken formal definition of enumeration case associated values #52941

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swift-ci opened this issue Apr 24, 2019 · 1 comment
Closed

[SR-10541] "Swift Programming Language" Book has mistaken formal definition of enumeration case associated values #52941

swift-ci opened this issue Apr 24, 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 documentation

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Previous ID SR-10541
Radar None
Original Reporter CTMacUser (JIRA User)
Type Bug
Status Closed
Resolution Duplicate
Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug, Documentation
Assignee None
Priority Medium

md5: 1f3663782f31a4c741d2fefecae14839

Issue Description:

This is for the SPL for Swift 5. The formal reference section for enumeration declarations refers to tuple syntax for enumeration cases that have associated values. Said syntax allows zero-element payloads but not single-element ones, while (as I understand it) the reverse is actually true for associated values. (There's no problem in representing multiple-element payloads.)

There's more information in the following Swift forum thread: <https://forums.swift.org/t/correction-needed-for-swift-programming-language-book/23133\>.
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Comment by Alex Martini (JIRA)

Thanks for calling out this issue! This being tracked as rdar://problem/49906528

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself documentation
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