Typescript，装饰异步函数

function LogExecutionTime(target: any, propertyKey: string, descriptor: PropertyDescriptor) {
    const originalMethod = descriptor.value;

    descriptor.value = async function (...args: any[]) {
        const start = performance.now();
        try {
            const result = await originalMethod.apply(this, args);
            return result;
        } finally {
            const end = performance.now();
            console.log(`Method ${propertyKey} took ${end - start} milliseconds to execute.`);
        }
    };

    return descriptor;
}

class Example {
    @LogExecutionTime
    async fetchData() {
        // Simulate an asynchronous operation
        await new Promise(resolve => setTimeout(resolve, 1000));
        console.log("Data fetched!");
    }
}

const example = new Example();
example.fetchData();