microsoft · RyanCavanaugh · Dec 9, 2022 · Dec 2, 2022 · Dec 2, 2022 · Dec 2, 2022
diff --git a/src/compiler/utilities.ts b/src/compiler/utilities.ts
@@ -7514,11 +7514,11 @@ export function getSetExternalModuleIndicator(options: CompilerOptions): (file:
 }
 
 /** @internal */
-export function getEmitScriptTarget(compilerOptions: {module?: CompilerOptions["module"], target?: CompilerOptions["target"]}) {
+export function getEmitScriptTarget(compilerOptions: {module?: CompilerOptions["module"], target?: CompilerOptions["target"]}): ScriptTarget {
     return compilerOptions.target ||
         (compilerOptions.module === ModuleKind.Node16 && ScriptTarget.ES2022) ||
         (compilerOptions.module === ModuleKind.NodeNext && ScriptTarget.ESNext) ||
-        ScriptTarget.ES3;
+        ScriptTarget.ES5;
 }
 
 /** @internal */

diff --git a/tests/baselines/reference/APILibCheck.js b/tests/baselines/reference/APILibCheck.js
@@ -33,4 +33,4 @@ import tsserverlibraryInternal = require("tsserverlibrary-internal");
 
 //// [index.js]
 "use strict";
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
diff --git a/tests/baselines/reference/APISample_Watch.js b/tests/baselines/reference/APISample_Watch.js
@@ -90,12 +90,12 @@ watchMain();
  *       at: https://github.com/Microsoft/TypeScript-wiki/blob/master/Using-the-Compiler-API.md#writing-an-incremental-program-watcher
  *       Please log a "breaking change" issue for any API breaking change affecting this issue
  */
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
 var ts = require("typescript");
 var formatHost = {
     getCanonicalFileName: function (path) { return path; },
     getCurrentDirectory: ts.sys.getCurrentDirectory,
-    getNewLine: function () { return ts.sys.newLine; }
+    getNewLine: function () { return ts.sys.newLine; },
 };
 function watchMain() {
     var configPath = ts.findConfigFile(/*searchPath*/ "./", ts.sys.fileExists, "tsconfig.json");

diff --git a/tests/baselines/reference/APISample_WatchWithDefaults.js b/tests/baselines/reference/APISample_WatchWithDefaults.js
@@ -62,7 +62,7 @@ watchMain();
  * Note: This test is a public API sample. This uses default sys interface without having to pass anything
  *       Please log a "breaking change" issue for any API breaking change affecting this issue
  */
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
 var ts = require("typescript");
 function watchMain() {
     var configPath = ts.findConfigFile(/*searchPath*/ "./", ts.sys.fileExists, "tsconfig.json");

diff --git a/tests/baselines/reference/APISample_WatchWithOwnWatchHost.js b/tests/baselines/reference/APISample_WatchWithOwnWatchHost.js
@@ -69,7 +69,7 @@ watchMain();
  * Note: This test is a public API sample. This sample verifies creating abstract builder to watch list of root files
  *       Please log a "breaking change" issue for any API breaking change affecting this issue
  */
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
 var ts = require("typescript");
 function watchMain() {
     // get list of files and compiler options somehow

diff --git a/tests/baselines/reference/APISample_compile.js b/tests/baselines/reference/APISample_compile.js
@@ -53,7 +53,7 @@ compile(process.argv.slice(2), {
  *       at: https://github.com/Microsoft/TypeScript/wiki/Using-the-Compiler-API#a-minimal-compiler
  *       Please log a "breaking change" issue for any API breaking change affecting this issue
  */
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
 exports.compile = void 0;
 var ts = require("typescript");
 function compile(fileNames, options) {

diff --git a/tests/baselines/reference/APISample_jsdoc.js b/tests/baselines/reference/APISample_jsdoc.js
@@ -129,7 +129,7 @@ function getSomeOtherTags(node: ts.Node) {
  *           https://github.com/vega/ts-json-schema-generator
  *       Please log a "breaking change" issue for any API breaking change affecting this issue
  */
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
 var ts = require("typescript");
 // excerpted from https://github.com/YousefED/typescript-json-schema
 // (converted from a method and modified; for example, `this: any` to compensate, among other changes)

diff --git a/tests/baselines/reference/APISample_linter.js b/tests/baselines/reference/APISample_linter.js
@@ -79,7 +79,7 @@ fileNames.forEach(fileName => {
  *       at: https://github.com/Microsoft/TypeScript/wiki/Using-the-Compiler-API#traversing-the-ast-with-a-little-linter
  *       Please log a "breaking change" issue for any API breaking change affecting this issue
  */
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
 exports.delint = void 0;
 var ts = require("typescript");
 function delint(sourceFile) {

diff --git a/tests/baselines/reference/APISample_parseConfig.js b/tests/baselines/reference/APISample_parseConfig.js
@@ -51,7 +51,7 @@ export function createProgram(rootFiles: string[], compilerOptionsJson: string):
  *       at: https://github.com/Microsoft/TypeScript/wiki/Using-the-Compiler-API#a-minimal-compiler
  *       Please log a "breaking change" issue for any API breaking change affecting this issue
  */
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
 exports.createProgram = void 0;
 var ts = require("typescript");
 function printError(error) {

diff --git a/tests/baselines/reference/APISample_transform.js b/tests/baselines/reference/APISample_transform.js
@@ -31,7 +31,7 @@ console.log(JSON.stringify(result));
  *       at: https://github.com/Microsoft/TypeScript/wiki/Using-the-Compiler-API#a-simple-transform-function
  *       Please log a "breaking change" issue for any API breaking change affecting this issue
  */
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
 var ts = require("typescript");
 var source = "let x: string  = 'string'";
 var result = ts.transpile(source, { module: ts.ModuleKind.CommonJS });

diff --git a/tests/baselines/reference/APISample_watcher.js b/tests/baselines/reference/APISample_watcher.js
@@ -126,7 +126,7 @@ watch(currentDirectoryFiles, { module: ts.ModuleKind.CommonJS });
  *       at: https://github.com/Microsoft/TypeScript/wiki/Using-the-Compiler-API#incremental-build-support-using-the-language-services
  *       Please log a "breaking change" issue for any API breaking change affecting this issue
  */
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
 var ts = require("typescript");
 function watch(rootFileNames, options) {
     var files = {};
@@ -148,7 +148,7 @@ function watch(rootFileNames, options) {
         getCompilationSettings: function () { return options; },
         getDefaultLibFileName: function (options) { return ts.getDefaultLibFilePath(options); },
         fileExists: function (fileName) { return fs.existsSync(fileName); },
-        readFile: function (fileName) { return fs.readFileSync(fileName); }
+        readFile: function (fileName) { return fs.readFileSync(fileName); },
     };
     // Create the language service files
     var services = ts.createLanguageService(servicesHost, ts.createDocumentRegistry());

diff --git a/tests/baselines/reference/DeclarationErrorsNoEmitOnError.js b/tests/baselines/reference/DeclarationErrorsNoEmitOnError.js
@@ -6,7 +6,7 @@ export interface I {
 
 //// [DeclarationErrorsNoEmitOnError.js]
 "use strict";
-exports.__esModule = true;
+Object.defineProperty(exports, "__esModule", { value: true });
 
 
 //// [DeclarationErrorsNoEmitOnError.d.ts]

diff --git a/tests/baselines/reference/ES3For-ofTypeCheck1.errors.txt b/tests/baselines/reference/ES3For-ofTypeCheck1.errors.txt
diff --git a/tests/baselines/reference/ES3For-ofTypeCheck4.errors.txt b/tests/baselines/reference/ES3For-ofTypeCheck4.errors.txt
diff --git a/tests/baselines/reference/ES5For-of33.js b/tests/baselines/reference/ES5For-of33.js
diff --git a/tests/baselines/reference/ES5For-of33.js.map b/tests/baselines/reference/ES5For-of33.js.map
diff --git a/tests/baselines/reference/ES5For-of33.sourcemap.txt b/tests/baselines/reference/ES5For-of33.sourcemap.txt
@@ -119,7 +119,7 @@ sourceFile:ES5For-of33.ts
 >>>catch (e_1_1) { e_1 = { error: e_1_1 }; }
 >>>finally {
 >>>    try {
->>>        if (_c && !_c.done && (_a = _b["return"])) _a.call(_b);
+>>>        if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
 >>>    }
 >>>    finally { if (e_1) throw e_1.error; }
 >>>}

diff --git a/tests/baselines/reference/ES5For-of34.js b/tests/baselines/reference/ES5For-of34.js
diff --git a/tests/baselines/reference/ES5For-of34.js.map b/tests/baselines/reference/ES5For-of34.js.map
diff --git a/tests/baselines/reference/ES5For-of34.sourcemap.txt b/tests/baselines/reference/ES5For-of34.sourcemap.txt
@@ -178,7 +178,7 @@ sourceFile:ES5For-of34.ts
 >>>catch (e_1_1) { e_1 = { error: e_1_1 }; }
 >>>finally {
 >>>    try {
->>>        if (_c && !_c.done && (_a = _b["return"])) _a.call(_b);
+>>>        if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
 >>>    }
 >>>    finally { if (e_1) throw e_1.error; }
 >>>}

diff --git a/tests/baselines/reference/ES5For-of35.js b/tests/baselines/reference/ES5For-of35.js