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[SR-3256] Invalid redeclaration of 'functionName()' in an enum with the same case name #45844

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DevAndArtist mannequin opened this issue Nov 22, 2016 · 2 comments
Open

[SR-3256] Invalid redeclaration of 'functionName()' in an enum with the same case name #45844

DevAndArtist mannequin opened this issue Nov 22, 2016 · 2 comments
Labels
bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. compiler The Swift compiler in itself

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@DevAndArtist
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Mannequin

DevAndArtist mannequin commented Nov 22, 2016

Previous ID SR-3256
Radar None
Original Reporter @DevAndArtist
Type Bug
Environment

Xcode 8.1, latest master Snapshot and Xcode 8.1 Swift version

Additional Detail from JIRA
Votes 0
Component/s Compiler
Labels Bug
Assignee None
Priority Medium

md5: 8bf507a02afb241bddd08514e8d57a65

Issue Description:

enum States {
    
    case a
    case b
    case c
    
    mutating func b() {
        
        self = .b
    }
}
Playground execution failed: error: invalid redeclaration of 'b()'
    mutating func b() {
                  ^

note: 'b' previously declared here
    case b
         ^
@CodaFi
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CodaFi commented Dec 29, 2016

This is correct: this is definitely ambiguous

let x = States.b
^ What types does `x` have, `States` or `() -> ()`?

The diagnostic could be a bit more clever nonetheless.

@DevAndArtist
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Mannequin Author

DevAndArtist mannequin commented Jan 3, 2017

The latter is actually

@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
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@CodaFi