sealed interface OverlayElementOrigin : OverlayNodeOrigin
    sealed interface OverlayErrorOrigin : OverlayNodeOrigin
    sealed interface OverlayValueOrigin : OverlayNodeOrigin
    sealed interface CopiedOrigin : OverlayPropertyOrigin, OverlayElementOrigin, OverlayErrorOrigin, OverlayValueOrigin

    /**
     * The node is copied as-is from the underlay. The [documentNode] is the node itself.
     */

    private
    val overlayElementOrigin: MutableMap<ElementNode, OverlayNodeOrigin.OverlayElementOrigin> = mutableMapOf()

    private
    val overlayErrorOrigin: MutableMap<ErrorNode, OverlayNodeOrigin.OverlayErrorOrigin> = mutableMapOf()

    private
    val overlayValueOrigin: MutableMap<ValueNode, OverlayValueOrigin> = mutableMapOf()