Would you be willing to elaborate? Are you thinking of model objects whose 
properties are all completely hidden using 'private' and whose APIs are 
available only through methods? What if there existed something like 
"private(reflectable)", for properties you really want to keep both private and 
exposed to the reflection machinery? Or maybe a property behavior to do the 
same thing once that feature becomes a reality...

Austin


> On May 26, 2016, at 11:52 PM, David Hart <[email protected]> wrote:
> 
> 
> 
>> On 27 May 2016, at 04:44, Austin Zheng via swift-evolution 
>> <[email protected]> wrote:
>> 
>> My personal preference would be to honor access control, and consider ser/de 
>> separately (especially since there are so many other possible considerations 
>> for that feature). Access control in Swift isn't just another safety 
>> feature, it's also a boundary for things like the optimizer.
>> 
>> To be honest, I expect the first big use of a feature like this to be 
>> turning JSON or XML received from a network call into model objects for an 
>> app. There are quite a few Objective-C libraries that use KVC to implement 
>> this functionality.
> 
> That's what I want to use it for and I'm fairly sure we need access to 
> private properties for that.

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