Typescript:基于另一个属性的属性

function log(target: any, propertyKey: string) {
  let value = target[propertyKey];

  const getter = function () {
    console.log(`Getting value: ${value}`);
    return value;
  };

  const setter = function (newValue: any) {
    console.log(`Setting value: ${newValue}`);
    value = newValue;
  };

  Object.defineProperty(target, propertyKey, {
    get: getter,
    set: setter,
    enumerable: true,
    configurable: true,
  });
}

class Example {
  @log
  public name: string;

  constructor(name: string) {
    this.name = name;
  }
}

const example = new Example("John");
console.log(example.name); // 输出：Getting value: John，John
example.name = "Jane"; // 输出：Setting value: Jane
console.log(example.name); // 输出：Getting value: Jane，Jane