Hi Rod and Tony,
Thanks a lot !
Regards,
Muthu
> On 17 Jun 2017, at 12:11 AM, Tony Parker <anthony.par...@apple.com> wrote:
>
> Hi Rod,
>
> Thanks, we’re looking into it.
>
> - Tony
>
>> On Jun 15, 2017, at 9:14 PM, Rod Brown <rodney.bro...@icloud.com> wrote:
>>
>> Hi Tony and Somu,
>>
>> I have an open radar for this one which has been outstanding for a few
>> months.
>>
>> Radar #32191242
>>
>> Hope this helps.
>>
>> - Rod
>>
>>
>>
>>> On 15 Jun 2017, at 10:27 am, Tony Parker via swift-users
>>> <swift-users@swift.org> wrote:
>>>
>>> Hi Somu,
>>>
>>> You can certainly file a bug for us. It may be something we are already
>>> tracking or already fixed, but the bug report will let us double check that.
>>>
>>> Thanks,
>>> - Tony
>>>
>>>> On Jun 13, 2017, at 12:33 PM, somu subscribe via swift-users
>>>> <swift-users@swift.org> wrote:
>>>>
>>>> Thanks a lot Jordan for pointing out the root cause.
>>>>
>>>> The underlying executing and finished properties are readonly properties.
>>>>
>>>> For an Asynchronous operation I had to override it tell when the
>>>> asynchronous operation completes.
>>>>
>>>> Since they are readonly properties I am unable to call the super on them
>>>> to set values.
>>>>
>>>> I can still use String, was just wondering if there was a way to do it
>>>> using KeyPath. It is more out of enthusiasm to try out the KeyPath feature
>>>> in the project :)
>>>>
>>>> Would it be appropriate to file a bug report for the implementation of
>>>> Operation ?
>>>>
>>>> Thanks and regards,
>>>> Muthu
>>>>
>>>>
>>>>
>>>>> On 14 Jun 2017, at 1:32 AM, Jordan Rose <jordan_r...@apple.com> wrote:
>>>>>
>>>>> Hi, Muthu. This is a longstanding issue with Operation—the Objective-C
>>>>> name of the property is just "executing", but the KVO keys that the
>>>>> implementors used is "isExecuting". Swift isn't set up to deal with this
>>>>> difference.
>>>>>
>>>>> Fortunately, the base implementation of Operation already knows how to
>>>>> send the KVO notifications, so you shouldn't have to override these
>>>>> properties at all. If you still want to for some other reason, you can
>>>>> call super instead of storing to a private property.
>>>>>
>>>>> Hope that helps,
>>>>> Jordan
>>>>>
>>>>>
>>>>>> On Jun 13, 2017, at 06:40, somu subscribe via swift-users
>>>>>> <swift-users@swift.org> wrote:
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> I am having trouble using KeyPath to KVC (Key Value Code) in Swift 4.
>>>>>>
>>>>>> I have a subclass of Operation and I am overriding the isFinished and
>>>>>> isExecuting property.
>>>>>>
>>>>>> Problem:
>>>>>> - When I use KeyPath, the completionBlock of the operation is not
>>>>>> invoked.
>>>>>> - However when I use String instead of KeyPath, the completionBlock is
>>>>>> invoked.
>>>>>>
>>>>>> Questions:
>>>>>> - Am I missing something ?
>>>>>> - Is there a way to fix it using KeyPath ?
>>>>>>
>>>>>> Code:
>>>>>>
>>>>>> override var isExecuting : Bool {
>>>>>>
>>>>>> get {
>>>>>> return _executing //property in the class
>>>>>> }
>>>>>>
>>>>>> set {
>>>>>> willChangeValue(for: \.isExecuting)
>>>>>> _executing = newValue
>>>>>> didChangeValue(for: \.isExecuting)
>>>>>> }
>>>>>> }
>>>>>>
>>>>>> override var isFinished : Bool {
>>>>>>
>>>>>> get {
>>>>>> return _finished //property in the class
>>>>>> }
>>>>>>
>>>>>> set {
>>>>>> willChangeValue(for: \.isFinished)
>>>>>> _finished = newValue
>>>>>> didChangeValue(for: \.isFinished)
>>>>>> }
>>>>>> }
>>>>>>
>>>>>>
>>>>>> Configuration:
>>>>>> - Xcode - 9.0 beta (9M136h)
>>>>>> - Tested on Simulator (iOS 11)
>>>>>> - macOS Sierra - 10.12.5 (16F73)
>>>>>>
>>>>>>
>>>>>> Thanks and Regards,
>>>>>> Muthu
>>>>>> _______________________________________________
>>>>>> swift-users mailing list
>>>>>> swift-users@swift.org
>>>>>> https://lists.swift.org/mailman/listinfo/swift-users
>>>>>
>>>>
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