GuestProtocolAdapter

The root of the widget tree onto which widgetSystem-produced widgets can be added. Changes to this instance are recorded as changes to Id.Root and ChildrenTag.Root.

Host versions prior to 0.10.0 contained a bug where they did not recursively remove widgets from the protocol map which leaked any child views of a removed node. We can work around this on the guest side by synthesizing removes for every node in the subtree.

The provider of factories of widgets which record property changes and whose children changes are also recorded. You must attach returned widgets to root or the children of a widget in the tree beneath root in order for it to be tracked.

There's a bug in kotlinx.serialization where decodeFromDynamic() is broken for UInt values larger than MAX_INT. For example, 4294967295 is incorrectly encoded as -1. We work around that here by special casing that type.