import { getParent } from './getParent';
/**
 * Similar functionality to `element.contains` DOM API for use without of order DOM elements that
 * checks the virtual parent hierarchy. If a virtual parents exists, it is chosen over the actual parent
 *
 * @internal
 * @returns true if the child can find the parent in its virtual hierarchy
 */ export function elementContains(parent, child) {
    if (!parent || !child) {
        return false;
    }
    if (parent === child) {
        return true;
    } else {
        // Tracks references of nodes that have been visited to prevent infinite loops
        const set = new WeakSet();
        while(child){
            const nextParent = getParent(child, {
                skipVirtual: set.has(child)
            });
            set.add(child);
            if (nextParent === parent) {
                return true;
            }
            child = nextParent;
        }
    }
    return false;
}