28 lines
647 B
JavaScript
28 lines
647 B
JavaScript
|
export default (function (fn) {
|
||
|
return function () {
|
||
|
var gen = fn.apply(this, arguments);
|
||
|
return new Promise(function (resolve, reject) {
|
||
|
function step(key, arg) {
|
||
|
try {
|
||
|
var info = gen[key](arg);
|
||
|
var value = info.value;
|
||
|
} catch (error) {
|
||
|
reject(error);
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
if (info.done) {
|
||
|
resolve(value);
|
||
|
} else {
|
||
|
return Promise.resolve(value).then(function (value) {
|
||
|
step("next", value);
|
||
|
}, function (err) {
|
||
|
step("throw", err);
|
||
|
});
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return step("next");
|
||
|
});
|
||
|
};
|
||
|
});
|