Function createPathGetter

packages/runtime-core/src/apiWatch.ts:270–282

(
  ctx: ComponentPublicInstance,
  path: string,
)

}

export function createPathGetter(
  ctx: ComponentPublicInstance,
  path: string,
): () => WatchSource | WatchSource[] | WatchEffect | object {
  const segments = path.split('.')
  return (): WatchSource | WatchSource[] | WatchEffect | object => {
    let cur = ctx
    for (let i = 0; i < segments.length && cur; i++) {
      cur = cur[segments[i] as keyof typeof cur]
    }
    return cur
  }
}