[swift-users] Initializers

[tuuranton at tutanota.de]

Yes, but why?
What's the rationale for this?
What would be so bad about allowing overriding a non-failable initializer with a failable initializer?
27. Jan 2017 18:59 by saagar at saagarjha.com:


> You can’t override a designated initializer with one that is failable. The second one is defining a new initializer that is failable, instead of overriding the one from its superclass.
> Saagar Jha
>
>> On Jan 27, 2017, at 8:45 AM, tuuranton--- via swift-users <>> swift-users at swift.org>> > wrote:
>>           >> See the comments. Why is one allowed but the other one isn't and what's the rationale for this?
>>
>> class Vehicle {>>     let name: String>>     init(name: String) {>>         self.name = name>>     }>> }
>>
>> class Car: Vehicle {>>     //Why is this not allowed?>>     override init?(name: String) {>>         super.init(name: name)>>     }>>     >>     //But this is allowed?>>     init?(name: String, ignore: String) {>>         super.init(name: name)>>     }>> }
>>
>>
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>
>
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