WeakCapture.swift

// This causes a retain cycle on `vc` 

var vc: UIViewController?

let myNewSUIView = ASwiftUIView(
	completion: { url in
		vc?.dismiss(animated: true)
	})

let hostingController = UIHostingController(rootView: myNewSUIView)
let parentContainerVC = ParentContainerViewController(rootViewController: hostingController)
vc = parentContainerVC
present(vc, animated: true)

// I tried this:
completion: { [weak vc] url in
			 
// however, that captures `vc` prior to having been set, meaning it will be `nil` when executed.
// What I came up with was this:
			 
class WeakCapture<T: AnyObject> {
	weak var value: T?

	init(value: T) {
		self.value = value
	}

	init(type: T.Type) {
		self.value = nil
	}
}

// combined with 
			 
let weakVC = WeakCapture(type: UIViewController.self)

let myNewSUIView = ASwiftUIView(
	completion: { url in
		weakVC.value?.dismiss(animated: true)
	})

let hostingController = UIHostingController(rootView: myNewSUIView)
let parentContainerVC = ParentContainerViewController(rootViewController: hostingController)
weakVC.value = parentContainerVC

			 
// So my question is - is there a better way to have a weak reference to the SwiftUI View's hosting controller to dismiss from a button press inside the View?

Context: this is taking place in a Coordinator with a one off SwiftUI view in a UIKit app.