export function hydrate()

in packages/miniapp-runtime/src/hydrate.ts [26:108]
67 lines of code
24 McCabe index (conditional complexity)

export function hydrate(node: Element | Text): MiniData {
  if (!componentsAlias) {
    // 初始化 componentsAlias
    componentsAlias = getComponentsAlias();
  }

  if (!SPECIAL_NODES) {
    // 初始化 SPECIAL_NODES
    SPECIAL_NODES = hooks.call('getSpecialNodes')!;
  }

  const { nodeName } = node;

  if (isText(node)) {
    return {
      [Shortcuts.Text]: node.nodeValue,
      [Shortcuts.NodeName]: componentsAlias[nodeName]._num,
    };
  }

  const data: MiniElementData = {
    [Shortcuts.NodeName]: nodeName,
    sid: node.sid,
  };

  if (node.uid !== node.sid) {
    data.uid = node.uid;
  }

  if (!node.isAnyEventBinded() && SPECIAL_NODES.indexOf(nodeName) > -1) {
    data[Shortcuts.NodeName] = `static-${nodeName}`;
    if (nodeName === VIEW && !isHasExtractProp(node)) {
      data[Shortcuts.NodeName] = PURE_VIEW;
    }
  }

  const { props } = node;
  for (const prop in props) {
    const propInCamelCase = toCamelCase(prop);
    if (
      !prop.startsWith('data-') && // 在 node.dataset 的数据
      prop !== CLASS &&
      prop !== STYLE &&
      prop !== ID &&
      propInCamelCase !== CATCHMOVE
    ) {
      data[propInCamelCase] = props[prop];
    }
    if (nodeName === VIEW && propInCamelCase === CATCHMOVE && props[prop] !== false) {
      data[Shortcuts.NodeName] = CATCH_VIEW;
    }
  }

  // Children
  data[Shortcuts.Childnodes] = node.childNodes.filter(node => !isComment(node)).map(hydrate);

  if (node.className !== '') {
    data[Shortcuts.Class] = node.className;
  }

  const { cssText } = node;
  if (cssText !== '' && nodeName !== 'swiper-item') {
    data[Shortcuts.Style] = cssText;
  }

  hooks.call('modifyHydrateData', data);

  const nn = data[Shortcuts.NodeName];
  const componentAlias = componentsAlias[nn];
  if (componentAlias) {
    data[Shortcuts.NodeName] = componentAlias._num;
    for (const prop in data) {
      if (prop in componentAlias) {
        data[componentAlias[prop]] = data[prop];
        delete data[prop];
      }
    }
  } else {
    hooks.call('hydrateNativeComponentNode', node);
  }

  return data;
}