I already did that, sorry for not providing any code. Take this as an example:
public struct Wrapper<Element> {
private var elements: [Element]
public init<S: Sequence where S.Iterator.Element == Element>(_ sequence: S)
{
elements = [Element](sequence)
}
}
extension Wrapper: Collection {
public var startIndex: Int { return elements.startIndex }
public var endIndex: Int { return elements.endIndex }
public func index(after index: Int) -> Int {
return index + 1
}
public subscript(position: Int) -> Element {
return elements[position]
}
}
extension Wrapper: CustomReflectable {
public var customMirror: Mirror {
return Mirror(self, unlabeledChildren: self, displayStyle: .collection)
}
}
If I debug an instance of this Wrapper type, then Xcode’s Variables View will
show
▿ wrapper
▿ elements = x values
[0] = 0
[1] = …
But the `elements` property is an implementation detail. What I would really
want to see is this:
▿ wrapper = x values
[0] = 0
[1] = …
But I’m not sure if this is even possible. That’s basically why I’m asking
this. Hopefully it’s clearer now :)
One last thing to note, the code `dump(wrapper)` will print
▿ 3 elements
- 1
- 2
- 3
to the console, which is good. If I don’t implement CustomReflectable, then
`dump(wrapper)` will show this:
▿ Wrapper<Swift.Int>
▿ elements: 3 elements
- 1
- 2
- 3
So my CustomReflectable conformance is definitely doing something, but I would
like to see the results in the variables view as well.
> On 27 Jun 2016, at 01:40, Dmitri Gribenko <[email protected]> wrote:
>
> On Fri, Jun 24, 2016 at 3:53 PM, Tim Vermeulen via swift-users
> <[email protected]> wrote:
>> I’ve implemented a linked list. Now I’d like to be able to view the elements
>> of a linked list in the debugger just like with an array. In the debugger,
>> an array is represented like this:
>>
>> [0] = the first element
>> [1] = the second element
>> etc
>>
>> I wonder if I can do the same for my linked list. I already implemented
>> CustomReflectable, so the code `dump(myLinkedList)` shows this in the
>> console:
>>
>> 3 elements
>> - first element
>> - second elements
>> - third element
>>
>> I thought this would also change the appearance of my linked list in the
>> debugger, but unfortunately it’s unchanged. Is there a way to do what I’m
>> trying to do?
>
> Try setting "displayStyle: .collection" when you call the Mirror initializer.
>
> Dmitri
>
> --
> main(i,j){for(i=2;;i++){for(j=2;j<i;j++){if(!(i%j)){j=0;break;}}if
> (j){printf("%d\n",i);}}} /*Dmitri Gribenko <[email protected]>*/
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