> On Oct 13, 2016, at 3:27 PM, Rick Mann <rm...@latencyzero.com> wrote:
>
>>
>> On Oct 13, 2016, at 14:47 , Joe Groff <jgr...@apple.com> wrote:
>>
>>
>>> On Oct 13, 2016, at 2:36 PM, Rick Mann via swift-users
>>> <swift-users@swift.org> wrote:
>>>
>>> It seems I can write this:
>>>
>>> extension String
>>> {
>>> public func deleting(prefix inPrefix: String) -> String
>>> public func deleting(prefix inPrefix: String) -> String?
>>> }
>>>
>>> But I was hoping it would do the right thing:
>>>
>>> let a = s.deleting(prefix: "foo")
>>> if let b = s.deleting(prefix: "foo") { }
>>>
>>> But it finds these ambiguous, and I'm not sure how to specify which I want.
>>
>> The first one is truly ambiguous since either overload works. If you specify
>> the type of 'a', you should be able to choose one or the other:
>>
>> let a: String = s.deleting(prefix: "foo")
>> let b: String? = s.deleting(prefix: "foo")
>>
>> The `if let` should not be ambiguous, since only the Optional-returning
>> overload is a valid candidate. Got time to file a bug?
>
> Here you go: https://bugs.swift.org/browse/SR-2942
Thanks!
-Joe
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