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Adhering to async generator yield behavior change (#6452)

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This commit is contained in:
Mateusz Burzyński
2017-10-21 21:48:27 +02:00
committed by GitHub
parent 39d05da3ed
commit 4684edaec7
14 changed files with 86 additions and 33 deletions
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4
packages/babel-plugin-transform-function-sent/test/fixtures/generator-kinds/async-generator/expected.js vendored
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@@ -16,7 +16,7 @@ function _awaitAsyncGenerator(value) { return new _AwaitValue(value); }
function _wrapAsyncGenerator(fn) { return function () { return new _AsyncGenerator(fn.apply(this, arguments)); }; }
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; if (value instanceof _AwaitValue) { Promise.resolve(value.value).then(function (arg) { resume("next", arg); }, function (arg) { resume("throw", arg); }); } else { settle(result.done ? "return" : "normal", result.value); } } 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; } }
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 wrappedAwait = value instanceof _AwaitValue; Promise.resolve(wrappedAwait ? value.wrapped : value).then(function (arg) { if (wrappedAwait) { resume("next", arg); return; } 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; } }
if (typeof Symbol === "function" && Symbol.asyncIterator) { _AsyncGenerator.prototype[Symbol.asyncIterator] = function () { return this; }; }
@@ -26,4 +26,4 @@ _AsyncGenerator.prototype.throw = function (arg) { return this._invoke("throw",
_AsyncGenerator.prototype.return = function (arg) { return this._invoke("return", arg); };
function _AwaitValue(value) { this.value = value; }
function _AwaitValue(value) { this.wrapped = value; }