diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts index d3d59fb8e13e9..47d935f61bdfa 100644 --- a/src/compiler/checker.ts +++ b/src/compiler/checker.ts @@ -50902,7 +50902,6 @@ export function createTypeChecker(host: TypeCheckerHost): TypeChecker { return true; } } - return false; } } diff --git a/src/compiler/transformers/esnext.ts b/src/compiler/transformers/esnext.ts index ecb75018d9be4..4deb7ecbd9a36 100644 --- a/src/compiler/transformers/esnext.ts +++ b/src/compiler/transformers/esnext.ts @@ -14,6 +14,7 @@ import { ExportAssignment, ExportSpecifier, Expression, + firstOrUndefined, ForOfStatement, ForStatement, GeneratedIdentifierFlags, @@ -305,11 +306,7 @@ export function transformESNext(context: TransformationContext): (x: SourceFile // // before handing the shallow transformation back to the visitor for an in-depth transformation. const forInitializer = node.initializer; - Debug.assertNode(forInitializer, isUsingVariableDeclarationList); - Debug.assert(forInitializer.declarations.length === 1, "ForInitializer may only have one declaration"); - - const forDecl = forInitializer.declarations[0]; - Debug.assert(!forDecl.initializer, "ForInitializer may not have an initializer"); + const forDecl = firstOrUndefined(forInitializer.declarations) || factory.createVariableDeclaration(factory.createTempVariable(/*recordTempVariable*/ undefined)); const isAwaitUsing = getUsingKindOfVariableDeclarationList(forInitializer) === UsingKind.Async; const temp = factory.getGeneratedNameForNode(forDecl.name); diff --git a/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=es5).errors.txt b/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=es5).errors.txt new file mode 100644 index 0000000000000..72a09855d0899 --- /dev/null +++ b/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=es5).errors.txt @@ -0,0 +1,22 @@ +awaitUsingDeclarationsInForAwaitOf.3.ts(5,5): error TS1432: Top-level 'for await' loops are only allowed when the 'module' option is set to 'es2022', 'esnext', 'system', 'node16', 'nodenext', or 'preserve', and the 'target' option is set to 'es2017' or higher. +awaitUsingDeclarationsInForAwaitOf.3.ts(5,23): error TS1123: Variable declaration list cannot be empty. +awaitUsingDeclarationsInForAwaitOf.3.ts(8,25): error TS1123: Variable declaration list cannot be empty. + + +==== awaitUsingDeclarationsInForAwaitOf.3.ts (3 errors) ==== + // https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 + + declare const x: any[] + + for await (await using of x); + ~~~~~ +!!! error TS1432: Top-level 'for await' loops are only allowed when the 'module' option is set to 'es2022', 'esnext', 'system', 'node16', 'nodenext', or 'preserve', and the 'target' option is set to 'es2017' or higher. + +!!! error TS1123: Variable declaration list cannot be empty. + + export async function test() { + for await (await using of x); + +!!! error TS1123: Variable declaration list cannot be empty. + } + \ No newline at end of file diff --git a/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=es5).js b/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=es5).js new file mode 100644 index 0000000000000..2a13612d602c6 --- /dev/null +++ b/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=es5).js @@ -0,0 +1,196 @@ +//// [tests/cases/conformance/statements/VariableStatements/usingDeclarations/awaitUsingDeclarationsInForAwaitOf.3.ts] //// + +//// [awaitUsingDeclarationsInForAwaitOf.3.ts] +// https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 + +declare const x: any[] + +for await (await using of x); + +export async function test() { + for await (await using of x); +} + + +//// [awaitUsingDeclarationsInForAwaitOf.3.js] +// https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 +var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { + function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); } + 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) : adopt(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 (g && (g = 0, op[0] && (_ = 0)), _) 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 }; + } +}; +var __addDisposableResource = (this && this.__addDisposableResource) || function (env, value, async) { + if (value !== null && value !== void 0) { + if (typeof value !== "object" && typeof value !== "function") throw new TypeError("Object expected."); + var dispose, inner; + if (async) { + if (!Symbol.asyncDispose) throw new TypeError("Symbol.asyncDispose is not defined."); + dispose = value[Symbol.asyncDispose]; + } + if (dispose === void 0) { + if (!Symbol.dispose) throw new TypeError("Symbol.dispose is not defined."); + dispose = value[Symbol.dispose]; + if (async) inner = dispose; + } + if (typeof dispose !== "function") throw new TypeError("Object not disposable."); + if (inner) dispose = function() { try { inner.call(this); } catch (e) { return Promise.reject(e); } }; + env.stack.push({ value: value, dispose: dispose, async: async }); + } + else if (async) { + env.stack.push({ async: true }); + } + return value; +}; +var __disposeResources = (this && this.__disposeResources) || (function (SuppressedError) { + return function (env) { + function fail(e) { + env.error = env.hasError ? new SuppressedError(e, env.error, "An error was suppressed during disposal.") : e; + env.hasError = true; + } + function next() { + while (env.stack.length) { + var rec = env.stack.pop(); + try { + var result = rec.dispose && rec.dispose.call(rec.value); + if (rec.async) return Promise.resolve(result).then(next, function(e) { fail(e); return next(); }); + } + catch (e) { + fail(e); + } + } + if (env.hasError) throw env.error; + } + return next(); + }; +})(typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) { + var e = new Error(message); + return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e; +}); +var __asyncValues = (this && this.__asyncValues) || function (o) { + if (!Symbol.asyncIterator) throw new TypeError("Symbol.asyncIterator is not defined."); + var m = o[Symbol.asyncIterator], i; + return m ? m.call(o) : (o = typeof __values === "function" ? __values(o) : o[Symbol.iterator](), i = {}, verb("next"), verb("throw"), verb("return"), i[Symbol.asyncIterator] = function () { return this; }, i); + function verb(n) { i[n] = o[n] && function (v) { return new Promise(function (resolve, reject) { v = o[n](v), settle(resolve, reject, v.done, v.value); }); }; } + function settle(resolve, reject, d, v) { Promise.resolve(v).then(function(v) { resolve({ value: v, done: d }); }, reject); } +}; +var _a, e_1, _b, _c; +try { + for (var _d = true, x_1 = __asyncValues(x), x_1_1; x_1_1 = await x_1.next(), _a = x_1_1.done, !_a; _d = true) { + _c = x_1_1.value; + _d = false; + var _e_1 = _c; + var env_1 = { stack: [], error: void 0, hasError: false }; + try { + var _e = __addDisposableResource(env_1, _e_1, true); + ; + } + catch (e_2) { + env_1.error = e_2; + env_1.hasError = true; + } + finally { + var result_1 = __disposeResources(env_1); + if (result_1) + await result_1; + } + } +} +catch (e_1_1) { e_1 = { error: e_1_1 }; } +finally { + try { + if (!_d && !_a && (_b = x_1.return)) await _b.call(x_1); + } + finally { if (e_1) throw e_1.error; } +} +export function test() { + return __awaiter(this, void 0, void 0, function () { + var _a, x_2, x_2_1, _b_1, env_2, _b, e_3, result_2, e_4_1; + var _c, e_4, _d, _e; + return __generator(this, function (_f) { + switch (_f.label) { + case 0: + _f.trys.push([0, 10, 11, 16]); + _a = true, x_2 = __asyncValues(x); + _f.label = 1; + case 1: return [4 /*yield*/, x_2.next()]; + case 2: + if (!(x_2_1 = _f.sent(), _c = x_2_1.done, !_c)) return [3 /*break*/, 9]; + _e = x_2_1.value; + _a = false; + _b_1 = _e; + env_2 = { stack: [], error: void 0, hasError: false }; + _f.label = 3; + case 3: + _f.trys.push([3, 4, 5, 8]); + _b = __addDisposableResource(env_2, _b_1, true); + ; + return [3 /*break*/, 8]; + case 4: + e_3 = _f.sent(); + env_2.error = e_3; + env_2.hasError = true; + return [3 /*break*/, 8]; + case 5: + result_2 = __disposeResources(env_2); + if (!result_2) return [3 /*break*/, 7]; + return [4 /*yield*/, result_2]; + case 6: + _f.sent(); + _f.label = 7; + case 7: return [7 /*endfinally*/]; + case 8: + _a = true; + return [3 /*break*/, 1]; + case 9: return [3 /*break*/, 16]; + case 10: + e_4_1 = _f.sent(); + e_4 = { error: e_4_1 }; + return [3 /*break*/, 16]; + case 11: + _f.trys.push([11, , 14, 15]); + if (!(!_a && !_c && (_d = x_2.return))) return [3 /*break*/, 13]; + return [4 /*yield*/, _d.call(x_2)]; + case 12: + _f.sent(); + _f.label = 13; + case 13: return [3 /*break*/, 15]; + case 14: + if (e_4) throw e_4.error; + return [7 /*endfinally*/]; + case 15: return [7 /*endfinally*/]; + case 16: return [2 /*return*/]; + } + }); + }); +} diff --git a/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=esnext).errors.txt b/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=esnext).errors.txt new file mode 100644 index 0000000000000..83f6f9e7e3144 --- /dev/null +++ b/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=esnext).errors.txt @@ -0,0 +1,19 @@ +awaitUsingDeclarationsInForAwaitOf.3.ts(5,23): error TS1123: Variable declaration list cannot be empty. +awaitUsingDeclarationsInForAwaitOf.3.ts(8,25): error TS1123: Variable declaration list cannot be empty. + + +==== awaitUsingDeclarationsInForAwaitOf.3.ts (2 errors) ==== + // https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 + + declare const x: any[] + + for await (await using of x); + +!!! error TS1123: Variable declaration list cannot be empty. + + export async function test() { + for await (await using of x); + +!!! error TS1123: Variable declaration list cannot be empty. + } + \ No newline at end of file diff --git a/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=esnext).js b/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=esnext).js new file mode 100644 index 0000000000000..f78d407bb53f7 --- /dev/null +++ b/tests/baselines/reference/awaitUsingDeclarationsInForAwaitOf.3(target=esnext).js @@ -0,0 +1,22 @@ +//// [tests/cases/conformance/statements/VariableStatements/usingDeclarations/awaitUsingDeclarationsInForAwaitOf.3.ts] //// + +//// [awaitUsingDeclarationsInForAwaitOf.3.ts] +// https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 + +declare const x: any[] + +for await (await using of x); + +export async function test() { + for await (await using of x); +} + + +//// [awaitUsingDeclarationsInForAwaitOf.3.js] +// https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 +for await (await using of x) + ; +export async function test() { + for await (await using of x) + ; +} diff --git a/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=es5).errors.txt b/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=es5).errors.txt new file mode 100644 index 0000000000000..0cc4b1df6bc21 --- /dev/null +++ b/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=es5).errors.txt @@ -0,0 +1,19 @@ +awaitUsingDeclarationsInForOf.5.ts(5,17): error TS1123: Variable declaration list cannot be empty. +awaitUsingDeclarationsInForOf.5.ts(8,19): error TS1123: Variable declaration list cannot be empty. + + +==== awaitUsingDeclarationsInForOf.5.ts (2 errors) ==== + // https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 + + declare const x: any[] + + for (await using of x); + +!!! error TS1123: Variable declaration list cannot be empty. + + export async function test() { + for (await using of x); + +!!! error TS1123: Variable declaration list cannot be empty. + } + \ No newline at end of file diff --git a/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=es5).js b/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=es5).js new file mode 100644 index 0000000000000..a5bccb513f76c --- /dev/null +++ b/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=es5).js @@ -0,0 +1,155 @@ +//// [tests/cases/conformance/statements/VariableStatements/usingDeclarations/awaitUsingDeclarationsInForOf.5.ts] //// + +//// [awaitUsingDeclarationsInForOf.5.ts] +// https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 + +declare const x: any[] + +for (await using of x); + +export async function test() { + for (await using of x); +} + + +//// [awaitUsingDeclarationsInForOf.5.js] +// https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 +var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { + function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); } + 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) : adopt(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 (g && (g = 0, op[0] && (_ = 0)), _) 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 }; + } +}; +var __addDisposableResource = (this && this.__addDisposableResource) || function (env, value, async) { + if (value !== null && value !== void 0) { + if (typeof value !== "object" && typeof value !== "function") throw new TypeError("Object expected."); + var dispose, inner; + if (async) { + if (!Symbol.asyncDispose) throw new TypeError("Symbol.asyncDispose is not defined."); + dispose = value[Symbol.asyncDispose]; + } + if (dispose === void 0) { + if (!Symbol.dispose) throw new TypeError("Symbol.dispose is not defined."); + dispose = value[Symbol.dispose]; + if (async) inner = dispose; + } + if (typeof dispose !== "function") throw new TypeError("Object not disposable."); + if (inner) dispose = function() { try { inner.call(this); } catch (e) { return Promise.reject(e); } }; + env.stack.push({ value: value, dispose: dispose, async: async }); + } + else if (async) { + env.stack.push({ async: true }); + } + return value; +}; +var __disposeResources = (this && this.__disposeResources) || (function (SuppressedError) { + return function (env) { + function fail(e) { + env.error = env.hasError ? new SuppressedError(e, env.error, "An error was suppressed during disposal.") : e; + env.hasError = true; + } + function next() { + while (env.stack.length) { + var rec = env.stack.pop(); + try { + var result = rec.dispose && rec.dispose.call(rec.value); + if (rec.async) return Promise.resolve(result).then(next, function(e) { fail(e); return next(); }); + } + catch (e) { + fail(e); + } + } + if (env.hasError) throw env.error; + } + return next(); + }; +})(typeof SuppressedError === "function" ? SuppressedError : function (error, suppressed, message) { + var e = new Error(message); + return e.name = "SuppressedError", e.error = error, e.suppressed = suppressed, e; +}); +for (var _i = 0, x_1 = x; _i < x_1.length; _i++) { + var _a_1 = x_1[_i]; + var env_1 = { stack: [], error: void 0, hasError: false }; + try { + var _a = __addDisposableResource(env_1, _a_1, true); + ; + } + catch (e_1) { + env_1.error = e_1; + env_1.hasError = true; + } + finally { + var result_1 = __disposeResources(env_1); + if (result_1) + await result_1; + } +} +export function test() { + return __awaiter(this, void 0, void 0, function () { + var _i, x_2, _a_2, env_2, _a, e_2, result_2; + return __generator(this, function (_b) { + switch (_b.label) { + case 0: + _i = 0, x_2 = x; + _b.label = 1; + case 1: + if (!(_i < x_2.length)) return [3 /*break*/, 8]; + _a_2 = x_2[_i]; + env_2 = { stack: [], error: void 0, hasError: false }; + _b.label = 2; + case 2: + _b.trys.push([2, 3, 4, 7]); + _a = __addDisposableResource(env_2, _a_2, true); + ; + return [3 /*break*/, 7]; + case 3: + e_2 = _b.sent(); + env_2.error = e_2; + env_2.hasError = true; + return [3 /*break*/, 7]; + case 4: + result_2 = __disposeResources(env_2); + if (!result_2) return [3 /*break*/, 6]; + return [4 /*yield*/, result_2]; + case 5: + _b.sent(); + _b.label = 6; + case 6: return [7 /*endfinally*/]; + case 7: + _i++; + return [3 /*break*/, 1]; + case 8: return [2 /*return*/]; + } + }); + }); +} diff --git a/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=esnext).errors.txt b/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=esnext).errors.txt new file mode 100644 index 0000000000000..0cc4b1df6bc21 --- /dev/null +++ b/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=esnext).errors.txt @@ -0,0 +1,19 @@ +awaitUsingDeclarationsInForOf.5.ts(5,17): error TS1123: Variable declaration list cannot be empty. +awaitUsingDeclarationsInForOf.5.ts(8,19): error TS1123: Variable declaration list cannot be empty. + + +==== awaitUsingDeclarationsInForOf.5.ts (2 errors) ==== + // https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 + + declare const x: any[] + + for (await using of x); + +!!! error TS1123: Variable declaration list cannot be empty. + + export async function test() { + for (await using of x); + +!!! error TS1123: Variable declaration list cannot be empty. + } + \ No newline at end of file diff --git a/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=esnext).js b/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=esnext).js new file mode 100644 index 0000000000000..87751e03b95fb --- /dev/null +++ b/tests/baselines/reference/awaitUsingDeclarationsInForOf.5(target=esnext).js @@ -0,0 +1,22 @@ +//// [tests/cases/conformance/statements/VariableStatements/usingDeclarations/awaitUsingDeclarationsInForOf.5.ts] //// + +//// [awaitUsingDeclarationsInForOf.5.ts] +// https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 + +declare const x: any[] + +for (await using of x); + +export async function test() { + for (await using of x); +} + + +//// [awaitUsingDeclarationsInForOf.5.js] +// https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 +for (await using of x) + ; +export async function test() { + for (await using of x) + ; +} diff --git a/tests/cases/conformance/statements/VariableStatements/usingDeclarations/awaitUsingDeclarationsInForAwaitOf.3.ts b/tests/cases/conformance/statements/VariableStatements/usingDeclarations/awaitUsingDeclarationsInForAwaitOf.3.ts new file mode 100644 index 0000000000000..bf52c85e25aa3 --- /dev/null +++ b/tests/cases/conformance/statements/VariableStatements/usingDeclarations/awaitUsingDeclarationsInForAwaitOf.3.ts @@ -0,0 +1,14 @@ +// @target: es5,esnext +// @module: esnext +// @lib: esnext +// @noTypesAndSymbols: true + +// https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 + +declare const x: any[] + +for await (await using of x); + +export async function test() { + for await (await using of x); +} diff --git a/tests/cases/conformance/statements/VariableStatements/usingDeclarations/awaitUsingDeclarationsInForOf.5.ts b/tests/cases/conformance/statements/VariableStatements/usingDeclarations/awaitUsingDeclarationsInForOf.5.ts new file mode 100644 index 0000000000000..2838da346d2f8 --- /dev/null +++ b/tests/cases/conformance/statements/VariableStatements/usingDeclarations/awaitUsingDeclarationsInForOf.5.ts @@ -0,0 +1,14 @@ +// @target: es5,esnext +// @module: esnext +// @lib: esnext +// @noTypesAndSymbols: true + +// https://github.com/microsoft/TypeScript/pull/55558#issuecomment-1817595357 + +declare const x: any[] + +for (await using of x); + +export async function test() { + for (await using of x); +}