This may be getting into the multiple receivers fe...

# stdlib

[Brendan Campbell-hartzell]

This may be getting into the multiple receivers feature, but I'm wondering if there's a way to do this without having to wrap the IComponent in a with() call or something similar.

[Brendan Campbell-hartzell]

The goal here being that I'm enforcing all the properties of the IComponent to only be accessed and modified within the context of a GUIUpdate.

[Roukanken]

The only way to do it rn, is to declare var IComponent.description: String within GUIUpdate (also, might be better to call it GuiUpdate)
Which probably isnt a maintanable model, as GuiUpdate will get bloated

Currently, Kotlin differs between "implicit" (this) and "explicit" (stuff before .) recievers - and if you specify explicit reciever, then it cannot mean an implicit one in definition - so the vm.description can only call:
a) stuff without reciever defined in IComponent
b) stuff that has IComponent as explicit receiver in definition

And yes, this would most likely be easier with multiple recievers, as smth like

interface IComponent : ViewModel {
    
    @with(GuiUpdate)
    var description: String
}

Would likely work exactly as you want to. (I'm making a lot of assumptions there tho)

[Brendan Campbell-hartzell]

Yeah. I mean, it isn't too painful to wrap it in a with, apply, or run, but it isn't as discoverable on the client side.