Function unmount

src/diff/index.js:645–684

(vnode, parentVNode, skipRemove)

 * current element is already detached from the DOM.
 */
export function unmount(vnode, parentVNode, skipRemove) {
	let r;
	if (options.unmount) options.unmount(vnode);

	if ((r = vnode.ref)) {
		if (!r.current || r.current == vnode._dom) {
			applyRef(r, NULL, parentVNode);
		}
	}

	if ((r = vnode._component) != NULL) {
		if (r.componentWillUnmount) {
			try {
				r.componentWillUnmount();
			} catch (e) {
				options._catchError(e, parentVNode);
			}
		}

		r.base = r._parentDom = r._globalContext = NULL;
	}

	if ((r = vnode._children)) {
		for (let i = 0; i < r.length; i++) {
			if (r[i]) {
				unmount(
					r[i],
					parentVNode,
					skipRemove || typeof vnode.type != 'function'
				);
			}
		}
	}

	if (!skipRemove) {
		removeNode(vnode._dom);
	}

	vnode._component = vnode._parent = vnode._dom = UNDEFINED;
}

/** The `.render()` method for a PFC backing instance. */
function doRender(props, state, context) {