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//// [controlFlowForCatchAndFinally.ts]
type Page = {close(): Promise<void>; content(): Promise<string>};
type Browser = {close(): Promise<void>};
declare function test1(): Promise<Browser>;
declare function test2(obj: Browser): Promise<Page>;
async function test(): Promise<string> {
let browser: Browser | undefined = undefined;
let page: Page | undefined = undefined;
try {
browser = await test1();
page = await test2(browser);
return await page.content();;
} finally {
if (page) {
await page.close(); // ok
}
if (browser) {
await browser.close(); // ok
}
}
}
declare class Aborter { abort(): void };
class Foo {
abortController: Aborter | undefined = undefined;
async operation() {
if (this.abortController !== undefined) {
this.abortController.abort();
this.abortController = undefined;
}
try {
this.abortController = new Aborter();
} catch (error) {
if (this.abortController !== undefined) {
this.abortController.abort(); // ok
}
}
}
}
//// [controlFlowForCatchAndFinally.js]
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
function test() {
return __awaiter(this, void 0, void 0, function () {
var browser, page;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
browser = undefined;
page = undefined;
_a.label = 1;
case 1:
_a.trys.push([1, , 5, 10]);
return [4 /*yield*/, test1()];
case 2:
browser = _a.sent();
return [4 /*yield*/, test2(browser)];
case 3:
page = _a.sent();
return [4 /*yield*/, page.content()];
case 4: return [2 /*return*/, _a.sent()];
case 5:
if (!page) return [3 /*break*/, 7];
return [4 /*yield*/, page.close()];
case 6:
_a.sent(); // ok
_a.label = 7;
case 7:
if (!browser) return [3 /*break*/, 9];
return [4 /*yield*/, browser.close()];
case 8:
_a.sent(); // ok
_a.label = 9;
case 9: return [7 /*endfinally*/];
case 10: return [2 /*return*/];
}
});
});
}
;
var Foo = /** @class */ (function () {
function Foo() {
this.abortController = undefined;
}
Foo.prototype.operation = function () {
return __awaiter(this, void 0, void 0, function () {
return __generator(this, function (_a) {
if (this.abortController !== undefined) {
this.abortController.abort();
this.abortController = undefined;
}
try {
this.abortController = new Aborter();
}
catch (error) {
if (this.abortController !== undefined) {
this.abortController.abort(); // ok
}
}
return [2 /*return*/];
});
});
};
return Foo;
}());
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