javascript - 在协程中包装 ES6 类方法

Question

我希望将类方法变成协程:

import co from 'co';

class AClass {
    co(*consutrctor() {
       console.log('is something like this possible?');
    })

    co(*get() {
        console.log('what about this?');
    })

    onlyWay() {
        return co(function* () {
            console.log('this is how I do it now');
        }.bind(this))();
    }
}

在 python 中，使用装饰器很容易:

from asyncio import coroutine

class AClass(object):
    @coroutine
    def get(self):
        print('some async task')

Answer 1

你不能像@FelixKling 所说的那样使用生成器函数，但正确的方法来做你尝试的事情(在我看来)是这样的:

import co from 'co';

class AClass {
    constructor() {
        const a = this;
        co(function* () {
           // "a" contains a reference to the class.
           console.log(a...);
        });
    }

    *get() {
        // this is a yieldable generator function and you can use "co" here too.
    }

    onlyWay() {
        // still better to use this in my opinion:
        const a = this;
        co(function* () {
            yield a.get();
        });
    }
}