Re: Swift Compiler Bug?
Re: Swift Compiler Bug?
- Subject: Re: Swift Compiler Bug?
- From: Quincey Morris <email@hidden>
- Date: Mon, 15 Sep 2014 03:04:46 +0000
On Sep 14, 2014, at 19:47 , Charles Jenkins <email@hidden> wrote:
> let noWrappers: [AnyObject] = []
> self.theFileWrapper = NSFileWrapper( directoryWithFileWrappers: noWrappers )
> When I start typing “directoryWithFileWrappers,” Xcode displays its suggestion list showing the prototype:
>
> NSFileWrapper( directoryWithFileWrappers: [NSObject : AnyObject] )
> I think I could send nil instead of bothering to create an empty array, but whatever.
No, the parameter isn’t an optional type, so you can’t pass nil.
> Anyway, Xcode gives me the prototype which agrees with Apple’s documentation, and I code according to it. Then Xcode marks the line as an error: “Missing argument for parameter ‘options’ in call,” and my project won’t build.
>
> Is there an error in my code, or is this a problem I should report to Apple? And in the latter case, what’s the best way?
The parameter is a *dictionary*, not an array. IIRC you can specify an empty dictionary as ‘[:]’, so there’s no real need for a supplementary variable.
If that’s the error that’s being reported on, then it’s being mis-reported. That’s probably worth a bug report.
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