const getPromise = ph => {
    return new Promise((resolve, reject) => {
        ph.resolve = resolve;
        ph.reject = reject;
    });
};
const promiseHolder = {};
const promise = getPromise(promiseHolder);

async function *foo() {
    yield '#1';
    var result = await promise;
    yield result + '#2';
    yield result + '#3';
};

const f = foo();

f.next().then(({ value })=> print('fulfilled #1', value));
f.next().then(({ value })=> print('fulfilled #2', value));

promiseHolder.resolve('success');

f.throw(new Error('Some error')).then(({ value })=> print('fulfilled #3', value), error=> print('reject #3', error));
f.next().then(({ value })=> print('fulfilled #4', value));