Re: More Swift issues, NSURLComponents
Re: More Swift issues, NSURLComponents
- Subject: Re: More Swift issues, NSURLComponents
- From: Charles Srstka <email@hidden>
- Date: Mon, 05 Oct 2015 20:47:24 -0500
> On Oct 5, 2015, at 8:19 PM, Rick Mann <email@hidden> wrote:
>
>> On Oct 5, 2015, at 18:12 , Jens Alfke <email@hidden <mailto:email@hidden>> wrote:
>>
>> NSURLComponents is a class, not a struct, so ‘url3’ is a reference, not a value, and ‘let’ just means you can’t reassign ‘url3’ to point to another object.
>
> But it wasn't allowed in the copy() case.
That’s because it doesn’t *know* it’s a class in the copy() case. An AnyObject could be a class *or* a struct. The compiler errs on the side of caution.
Charles
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