如何解决LocalStorage存储function报错问题

问题现象
使用LocalStorage传递function报错：

Error message:@Component 'owning @Component UNKNOWN': Illegal variable value error with decorated variable undefined 'clickSend': failed validation: 'undefined, null, number, boolean, string, or Object but not function, not V2 @ObservedV2 / @Trace class, and makeObserved return value either, attempt to assign value type: 'function', value: 'undefined'!
关键问题参考如下：

function openCommentsInput(title: string, hintMsg: string, clickSend: Function = (content: string) => {}) {
let storage: LocalStorage = new LocalStorage();
storage.setOrCreate('title', title)
storage.setOrCreate('hintMsg', hintMsg)
storage.setOrCreate('clickSend', clickSend) // 程序崩溃，报错
}
背景知识
LocalStorage是页面级的UI状态存储，存储的类型有所限制。

问题定位
查看以下报错日志的关键信息可知，clickSend是非法变量值，支持undefined、null、number、boolean、string、Object等类型，但不支持function函数类型变量。

Illegal variable value error with decorated variable undefined 'clickSend': failed validation: 'undefined, null, number, boolean, string, or Object but not function ...'
分析结论
LocalStorage不支持存储function函数类型变量。

修改建议
使用类class将函数function进行封装为Object对象，LocalStorage支持存储Object对象。

let storage: LocalStorage = new LocalStorage();

function openCommentsInput(title: string, hintMsg: string, clickSend: object) {
storage.setOrCreate('title', title);
storage.setOrCreate('hintMsg', hintMsg);
storage.setOrCreate('clickSend', clickSend);
}

// 使用class对function进行一层封装
class MyFunc {
clickSend: Function = () => {
};
}

// 需要保存至LocalStorage的函数
function clickSend(ctx: string) {
console.info(ctx);
}

@Entry(storage)
@Component
export struct LocalStorageDemo {
@LocalStorageLink('clickSend') myFunc: object = []; // 获取LocalStorage中存储的clickSend对象

build() {
Column({ space: 20 }) {
Button('向storage保存数据')
.onClick(() => {
let myFunc: MyFunc = new MyFunc();
myFunc.clickSend = clickSend; // 将要保存的函数封装在class对象中
openCommentsInput('title', 'hintMsg', myFunc); // 将class对象保存至LocalStorage
});
Button('读取storage的数据')
.onClick(() => {
let tmp = this.myFunc as MyFunc; // 将Object对象转为MyFunc类
tmp.clickSend('读取storage的数据成功'); // 调用MyFunc中的clickSend函数
});
};
}
}
运行截图如下：成功调用LocalStorage中存储的类对象的函数来打印数据。

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