Method call

dom/src/VNodeWrapper.ts:10–31

(vnode: VNode | null)

  }

  public call(vnode: VNode | null): VNode {
    if (vnode === null) {
      return this.wrap([]);
    }
    const {tagName: selTagName, id: selId} = selectorParser(vnode);
    const vNodeClassName = classNameFromVNode(vnode);
    const vNodeData = vnode.data || {};
    const vNodeDataProps = vNodeData.props || {};
    const {id: vNodeId = selId} = vNodeDataProps;

    const isVNodeAndRootElementIdentical =
      typeof vNodeId === 'string' &&
      vNodeId.toUpperCase() === this.rootElement.id.toUpperCase() &&
      selTagName.toUpperCase() === this.rootElement.tagName.toUpperCase() &&
      vNodeClassName.toUpperCase() === this.rootElement.className.toUpperCase();

    if (isVNodeAndRootElementIdentical) {
      return vnode;
    }

    return this.wrap([vnode]);
  }

  private wrap(children: Array<VNode>) {
    const {tagName, id, className} = this.rootElement;