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.
95 lines
2.2 KiB
95 lines
2.2 KiB
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.default = AsyncGenerator;
|
|
var _OverloadYield = require("OverloadYield");
|
|
|
|
function AsyncGenerator(gen) {
|
|
var front, back;
|
|
function send(key, arg) {
|
|
return new Promise(function (resolve, reject) {
|
|
var request = {
|
|
key: key,
|
|
arg: arg,
|
|
resolve: resolve,
|
|
reject: reject,
|
|
next: null
|
|
};
|
|
if (back) {
|
|
back = back.next = request;
|
|
} else {
|
|
front = back = request;
|
|
resume(key, arg);
|
|
}
|
|
});
|
|
}
|
|
function resume(key, arg) {
|
|
try {
|
|
var result = gen[key](arg);
|
|
var value = result.value;
|
|
var overloaded = value instanceof _OverloadYield;
|
|
Promise.resolve(overloaded ? value.v : value).then(function (arg) {
|
|
if (overloaded) {
|
|
var nextKey = key === "return" ? "return" : "next";
|
|
if (!value.k || arg.done) {
|
|
return resume(nextKey, arg);
|
|
} else {
|
|
arg = gen[nextKey](arg).value;
|
|
}
|
|
}
|
|
settle(result.done ? "return" : "normal", arg);
|
|
}, function (err) {
|
|
resume("throw", err);
|
|
});
|
|
} catch (err) {
|
|
settle("throw", err);
|
|
}
|
|
}
|
|
function settle(type, value) {
|
|
switch (type) {
|
|
case "return":
|
|
front.resolve({
|
|
value: value,
|
|
done: true
|
|
});
|
|
break;
|
|
case "throw":
|
|
front.reject(value);
|
|
break;
|
|
default:
|
|
front.resolve({
|
|
value: value,
|
|
done: false
|
|
});
|
|
break;
|
|
}
|
|
front = front.next;
|
|
if (front) {
|
|
resume(front.key, front.arg);
|
|
} else {
|
|
back = null;
|
|
}
|
|
}
|
|
this._invoke = send;
|
|
|
|
if (typeof gen.return !== "function") {
|
|
this.return = undefined;
|
|
}
|
|
}
|
|
AsyncGenerator.prototype[typeof Symbol === "function" && Symbol.asyncIterator || "@@asyncIterator"] = function () {
|
|
return this;
|
|
};
|
|
AsyncGenerator.prototype.next = function (arg) {
|
|
return this._invoke("next", arg);
|
|
};
|
|
AsyncGenerator.prototype.throw = function (arg) {
|
|
return this._invoke("throw", arg);
|
|
};
|
|
AsyncGenerator.prototype.return = function (arg) {
|
|
return this._invoke("return", arg);
|
|
};
|
|
|
|
//# sourceMappingURL=AsyncGenerator.js.map
|