Cannot compile property wrapper

[CharlieSuP1]

Thx for you article https://nshipster.com/propertywrapper/.

With Xcode 11 beta 6 , there are some compile errors:

First this piece of code cannot be compiled:

`import Foundation

@propertyWrapper struct Versioned<Value> { private var value: Value private(set) var timestampedValues: [(Date, Value)] = []

var wrappedValue: Value {
    get { value }

    set {
        defer { timestampedValues.append((Date(), value)) }
        value = newValue
    }
}

init(initialValue value: Value) {
    self.wrappedValue = value
}

}`

Second, it seems that we can't get the property wrapper object with $ operator any more. Xcode can't figure it out. (Seems ok with Xcode 11 beta 2)

[mattt]

Indeed, property wrappers have gone through a few rounds of revision since the article was originally published. I'll revisit and update it for Xcode 11 once the final GM is made available.

[fl034]

After a an hour of struggling, Xcode told me that the parameter name initialValue is deprecated in favour of wrappedValue. So the following should work

init(wrappedValue value: Value) {
    self.wrappedValue = value
}

@mattt can you confirm this + update the page? :)