如何解决ArkTSCheck报错：Object literal must correspond to some explicitly declared class or interface？

Question

关于Object literal must correspond to some explicitly declared class or interface (arkts-no-untyped-obj-literals) <ArkTSCheck> 报错

// Define the message sync trigger types
type MsgSyncTriggerTypeUnique = "poll" | "longlink" | "wakeup" | "newlongink" | "pushwakeup";

// Export the message sync trigger types
export const MsgSyncTriggerType = {
  POLL: "poll" as MsgSyncTriggerTypeUnique,
  LONG_LINK: "longlink" as MsgSyncTriggerTypeUnique,
  WAKE_UP: "wakeup" as MsgSyncTriggerTypeUnique,
  NEW_LONG_LINK: "newlongink" as MsgSyncTriggerTypeUnique,
  WAKE_UP_PUSH: "pushwakeup" as MsgSyncTriggerTypeUnique,
};

这样定义类型报错：Object literal must correspond to some explicitly declared class or interface (arkts-no-untyped-obj-literals) <ArkTSCheck>

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Answer 1

ArkTS在TS基础商机进行了约束，不支持对象类型中包含call signature。
这种情况可以定义为一种枚举：

export enum MsgSyncTriggerType {
  POLL = "poll",
  LONG_LINK = "longlink",
  WAKE_UP = "wakeup",
  NEW_LONG_LINK = "newlongink",
  WAKE_UP_PUSH = "pushwakeup"
}

本文参与了思否 HarmonyOS 技术问答马拉松，欢迎正在阅读的你也加入。