You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.4 KiB
44 lines
1.4 KiB
export default function _asyncIterator(r) { |
|
var n, |
|
t, |
|
o, |
|
e = 2; |
|
for ("undefined" != typeof Symbol && (t = Symbol.asyncIterator, o = Symbol.iterator); e--;) { |
|
if (t && null != (n = r[t])) return n.call(r); |
|
if (o && null != (n = r[o])) return new AsyncFromSyncIterator(n.call(r)); |
|
t = "@@asyncIterator", o = "@@iterator"; |
|
} |
|
throw new TypeError("Object is not async iterable"); |
|
} |
|
function AsyncFromSyncIterator(r) { |
|
function AsyncFromSyncIteratorContinuation(r) { |
|
if (Object(r) !== r) return Promise.reject(new TypeError(r + " is not an object.")); |
|
var n = r.done; |
|
return Promise.resolve(r.value).then(function (r) { |
|
return { |
|
value: r, |
|
done: n |
|
}; |
|
}); |
|
} |
|
return AsyncFromSyncIterator = function AsyncFromSyncIterator(r) { |
|
this.s = r, this.n = r.next; |
|
}, AsyncFromSyncIterator.prototype = { |
|
s: null, |
|
n: null, |
|
next: function next() { |
|
return AsyncFromSyncIteratorContinuation(this.n.apply(this.s, arguments)); |
|
}, |
|
"return": function _return(r) { |
|
var n = this.s["return"]; |
|
return void 0 === n ? Promise.resolve({ |
|
value: r, |
|
done: !0 |
|
}) : AsyncFromSyncIteratorContinuation(n.apply(this.s, arguments)); |
|
}, |
|
"throw": function _throw(r) { |
|
var n = this.s["return"]; |
|
return void 0 === n ? Promise.reject(r) : AsyncFromSyncIteratorContinuation(n.apply(this.s, arguments)); |
|
} |
|
}, new AsyncFromSyncIterator(r); |
|
} |