Add test cases for top level "for await of".

Author: hikarino-my

tests/baselines/reference/awaitInNonAsyncFunction.errors.txt

@@ -12,7 +12,7 @@ tests/cases/compiler/awaitInNonAsyncFunction.ts(30,9): error TS1103: A 'for-awai
 tests/cases/compiler/awaitInNonAsyncFunction.ts(31,5): error TS1308: 'await' expressions are only allowed within async functions and at the top levels of modules.
 tests/cases/compiler/awaitInNonAsyncFunction.ts(34,7): error TS1103: A 'for-await-of' statement is only allowed within an async function or async generator.
 tests/cases/compiler/awaitInNonAsyncFunction.ts(35,5): error TS1308: 'await' expressions are only allowed within async functions and at the top levels of modules.
-tests/cases/compiler/awaitInNonAsyncFunction.ts(39,5): error TS1103: A 'for-await-of' statement is only allowed within an async function or async generator.
+tests/cases/compiler/awaitInNonAsyncFunction.ts(39,5): error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
 tests/cases/compiler/awaitInNonAsyncFunction.ts(40,1): error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
 
 
@@ -97,7 +97,7 @@ tests/cases/compiler/awaitInNonAsyncFunction.ts(40,1): error TS1378: Top-level '
 
     for await (const _ of []);
         ~~~~~
-!!! error TS1103: A 'for-await-of' statement is only allowed within an async function or async generator.
+!!! error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
     await null;
     ~~~~~
 !!! error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.

tests/baselines/reference/parser.forAwait.es2018.errors.txt

@@ -7,24 +7,30 @@ tests/cases/conformance/parser/ecmascript2018/forAwait/inFunctionDeclWithDeclIsE
 tests/cases/conformance/parser/ecmascript2018/forAwait/inFunctionDeclWithExprIsError.ts(3,9): error TS1103: A 'for-await-of' statement is only allowed within an async function or async generator.
 tests/cases/conformance/parser/ecmascript2018/forAwait/inGeneratorWithDeclIsError.ts(3,9): error TS1103: A 'for-await-of' statement is only allowed within an async function or async generator.
 tests/cases/conformance/parser/ecmascript2018/forAwait/inGeneratorWithExprIsError.ts(3,9): error TS1103: A 'for-await-of' statement is only allowed within an async function or async generator.
-tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithDeclIsError.ts(1,5): error TS1103: A 'for-await-of' statement is only allowed within an async function or async generator.
+tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithDeclIsError.ts(1,5): error TS1375: 'await' expressions are only allowed at the top level of a file when that file is a module, but this file has no imports or exports. Consider adding an empty 'export {}' to make this file a module.
+tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithDeclIsError.ts(1,5): error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
 tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithDeclIsError.ts(1,23): error TS2304: Cannot find name 'y'.
-tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithExprIsError.ts(1,5): error TS1103: A 'for-await-of' statement is only allowed within an async function or async generator.
+tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithExprIsError.ts(1,5): error TS1375: 'await' expressions are only allowed at the top level of a file when that file is a module, but this file has no imports or exports. Consider adding an empty 'export {}' to make this file a module.
+tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithExprIsError.ts(1,5): error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
 tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithExprIsError.ts(1,12): error TS2304: Cannot find name 'x'.
 tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithExprIsError.ts(1,17): error TS2304: Cannot find name 'y'.
 
 
-==== tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithDeclIsError.ts (2 errors) ====
+==== tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithDeclIsError.ts (3 errors) ====
     for await (const x of y) {
         ~~~~~
-!!! error TS1103: A 'for-await-of' statement is only allowed within an async function or async generator.
+!!! error TS1375: 'await' expressions are only allowed at the top level of a file when that file is a module, but this file has no imports or exports. Consider adding an empty 'export {}' to make this file a module.
+        ~~~~~
+!!! error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
                           ~
 !!! error TS2304: Cannot find name 'y'.
     }
-==== tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithExprIsError.ts (3 errors) ====
+==== tests/cases/conformance/parser/ecmascript2018/forAwait/topLevelWithExprIsError.ts (4 errors) ====
     for await (x of y) {
         ~~~~~
-!!! error TS1103: A 'for-await-of' statement is only allowed within an async function or async generator.
+!!! error TS1375: 'await' expressions are only allowed at the top level of a file when that file is a module, but this file has no imports or exports. Consider adding an empty 'export {}' to make this file a module.
+        ~~~~~
+!!! error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
                ~
 !!! error TS2304: Cannot find name 'x'.
                     ~

tests/baselines/reference/topLevelAwait(module=esnext,target=es2015).errors.txt

@@ -1,9 +1,18 @@
 tests/cases/conformance/externalModules/topLevelAwait.ts(2,1): error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
+tests/cases/conformance/externalModules/topLevelAwait.ts(6,5): error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
 
 
-==== tests/cases/conformance/externalModules/topLevelAwait.ts (1 errors) ====
+==== tests/cases/conformance/externalModules/topLevelAwait.ts (2 errors) ====
     export const x = 1;
     await x;
     ~~~~~
 !!! error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
+    
+    const arr = [Promise.resolve()];
+    
+    for await (const item of arr) {
+        ~~~~~
+!!! error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
+      item;
+    }
 

tests/baselines/reference/topLevelAwait(module=esnext,target=es2015).js

@@ -1,8 +1,36 @@
 //// [topLevelAwait.ts]
 export const x = 1;
 await x;
+
+const arr = [Promise.resolve()];
+
+for await (const item of arr) {
+  item;
+}
 
 
 //// [topLevelAwait.js]
+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 e_1, _a;
 export const x = 1;
 await x;
+const arr = [Promise.resolve()];
+try {
+    for (var arr_1 = __asyncValues(arr), arr_1_1; arr_1_1 = await arr_1.next(), !arr_1_1.done;) {
+        const item = arr_1_1.value;
+        item;
+    }
+}
+catch (e_1_1) { e_1 = { error: e_1_1 }; }
+finally {
+    try {
+        if (arr_1_1 && !arr_1_1.done && (_a = arr_1.return)) await _a.call(arr_1);
+    }
+    finally { if (e_1) throw e_1.error; }
+}

tests/baselines/reference/topLevelAwait(module=esnext,target=es2015).symbols

@@ -5,3 +5,17 @@ export const x = 1;
 await x;
 >x : Symbol(x, Decl(topLevelAwait.ts, 0, 12))
 
+const arr = [Promise.resolve()];
+>arr : Symbol(arr, Decl(topLevelAwait.ts, 3, 5))
+>Promise.resolve : Symbol(PromiseConstructor.resolve, Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --))
+>Promise : Symbol(Promise, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+>resolve : Symbol(PromiseConstructor.resolve, Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --))
+
+for await (const item of arr) {
+>item : Symbol(item, Decl(topLevelAwait.ts, 5, 16))
+>arr : Symbol(arr, Decl(topLevelAwait.ts, 3, 5))
+
+  item;
+>item : Symbol(item, Decl(topLevelAwait.ts, 5, 16))
+}
+

tests/baselines/reference/topLevelAwait(module=esnext,target=es2015).types

@@ -7,3 +7,19 @@ await x;
 >await x : 1
 >x : 1
 
+const arr = [Promise.resolve()];
+>arr : Promise<void>[]
+>[Promise.resolve()] : Promise<void>[]
+>Promise.resolve() : Promise<void>
+>Promise.resolve : { <T>(value: T | PromiseLike<T>): Promise<T>; (): Promise<void>; }
+>Promise : PromiseConstructor
+>resolve : { <T>(value: T | PromiseLike<T>): Promise<T>; (): Promise<void>; }
+
+for await (const item of arr) {
+>item : void
+>arr : Promise<void>[]
+
+  item;
+>item : void
+}
+

tests/baselines/reference/topLevelAwait(module=esnext,target=es2017).js

@@ -1,8 +1,36 @@
 //// [topLevelAwait.ts]
 export const x = 1;
 await x;
+
+const arr = [Promise.resolve()];
+
+for await (const item of arr) {
+  item;
+}
 
 
 //// [topLevelAwait.js]
+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 e_1, _a;
 export const x = 1;
 await x;
+const arr = [Promise.resolve()];
+try {
+    for (var arr_1 = __asyncValues(arr), arr_1_1; arr_1_1 = await arr_1.next(), !arr_1_1.done;) {
+        const item = arr_1_1.value;
+        item;
+    }
+}
+catch (e_1_1) { e_1 = { error: e_1_1 }; }
+finally {
+    try {
+        if (arr_1_1 && !arr_1_1.done && (_a = arr_1.return)) await _a.call(arr_1);
+    }
+    finally { if (e_1) throw e_1.error; }
+}

tests/baselines/reference/topLevelAwait(module=esnext,target=es2017).symbols

@@ -5,3 +5,17 @@ export const x = 1;
 await x;
 >x : Symbol(x, Decl(topLevelAwait.ts, 0, 12))
 
+const arr = [Promise.resolve()];
+>arr : Symbol(arr, Decl(topLevelAwait.ts, 3, 5))
+>Promise.resolve : Symbol(PromiseConstructor.resolve, Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --))
+>Promise : Symbol(Promise, Decl(lib.es5.d.ts, --, --), Decl(lib.es2015.iterable.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.symbol.wellknown.d.ts, --, --))
+>resolve : Symbol(PromiseConstructor.resolve, Decl(lib.es2015.promise.d.ts, --, --), Decl(lib.es2015.promise.d.ts, --, --))
+
+for await (const item of arr) {
+>item : Symbol(item, Decl(topLevelAwait.ts, 5, 16))
+>arr : Symbol(arr, Decl(topLevelAwait.ts, 3, 5))
+
+  item;
+>item : Symbol(item, Decl(topLevelAwait.ts, 5, 16))
+}
+

tests/baselines/reference/topLevelAwait(module=esnext,target=es2017).types

@@ -7,3 +7,19 @@ await x;
 >await x : 1
 >x : 1
 
+const arr = [Promise.resolve()];
+>arr : Promise<void>[]
+>[Promise.resolve()] : Promise<void>[]
+>Promise.resolve() : Promise<void>
+>Promise.resolve : { <T>(value: T | PromiseLike<T>): Promise<T>; (): Promise<void>; }
+>Promise : PromiseConstructor
+>resolve : { <T>(value: T | PromiseLike<T>): Promise<T>; (): Promise<void>; }
+
+for await (const item of arr) {
+>item : void
+>arr : Promise<void>[]
+
+  item;
+>item : void
+}
+

tests/baselines/reference/topLevelAwait(module=system,target=es2015).errors.txt

@@ -1,9 +1,18 @@
 tests/cases/conformance/externalModules/topLevelAwait.ts(2,1): error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
+tests/cases/conformance/externalModules/topLevelAwait.ts(6,5): error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
 
 
-==== tests/cases/conformance/externalModules/topLevelAwait.ts (1 errors) ====
+==== tests/cases/conformance/externalModules/topLevelAwait.ts (2 errors) ====
     export const x = 1;
     await x;
     ~~~~~
 !!! error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
+    
+    const arr = [Promise.resolve()];
+    
+    for await (const item of arr) {
+        ~~~~~
+!!! error TS1378: Top-level 'await' expressions are only allowed when the 'module' option is set to 'esnext' or 'system', and the 'target' option is set to 'es2017' or higher.
+      item;
+    }