Function getSingleElementRoot

packages/compiler-core/src/transforms/cacheStatic.ts:51–60

(
  root: RootNode,
)

}

export function getSingleElementRoot(
  root: RootNode,
): PlainElementNode | ComponentNode | TemplateNode | null {
  const children = root.children.filter(x => x.type !== NodeTypes.COMMENT)
  return children.length === 1 &&
    children[0].type === NodeTypes.ELEMENT &&
    !isSlotOutlet(children[0])
    ? children[0]
    : null
}

function walk(
  node: ParentNode,