🤖 Pick PR #59195 (Added affectsSourceFile to importHe...) into release-5.5 (#59231)

Co-authored-by: Armando Aguirre <armando.aguirre@microsoft.com>

src/compiler/commandLineParser.ts

@@ -800,6 +800,7 @@ const commandOptionsWithoutBuild: CommandLineOption[] = [
         type: "boolean",
         affectsEmit: true,
         affectsBuildInfo: true,
+        affectsSourceFile: true,
         category: Diagnostics.Emit,
         description: Diagnostics.Allow_importing_helper_functions_from_tslib_once_per_project_instead_of_including_them_per_file,
         defaultValueDescription: false,
@@ -1270,6 +1271,7 @@ const commandOptionsWithoutBuild: CommandLineOption[] = [
         affectsEmit: true,
         affectsBuildInfo: true,
         affectsModuleResolution: true,
+        affectsSourceFile: true,
         category: Diagnostics.Language_and_Environment,
         description: Diagnostics.Specify_module_specifier_used_to_import_the_JSX_factory_functions_when_using_jsx_Colon_react_jsx_Asterisk,
         defaultValueDescription: "react",

src/testRunner/tests.ts

@@ -198,6 +198,7 @@ export * from "./unittests/tsserver/pasteEdits.js";
 export * from "./unittests/tsserver/plugins.js";
 export * from "./unittests/tsserver/pluginsAsync.js";
 export * from "./unittests/tsserver/projectErrors.js";
+export * from "./unittests/tsserver/projectImportHelpers.js";
 export * from "./unittests/tsserver/projectReferenceCompileOnSave.js";
 export * from "./unittests/tsserver/projectReferenceErrors.js";
 export * from "./unittests/tsserver/projectReferences.js";

src/testRunner/unittests/tsserver/projectImportHelpers.ts

@@ -0,0 +1,71 @@
+import * as ts from "../../_namespaces/ts.js";
+import { jsonToReadableText } from "../helpers.js";
+import {
+    baselineTsserverLogs,
+    openFilesForSession,
+    TestSession,
+} from "../helpers/tsserver.js";
+import { createServerHost } from "../helpers/virtualFileSystemWithWatch.js";
+
+describe("unittests:: tsserver:: projectImportHelpers::", () => {
+    it("import helpers sucessfully", () => {
+        const type1 = {
+            path: "/a/type.ts",
+            content: `
+export type Foo {
+    bar: number;
+};`,
+        };
+        const file1 = {
+            path: "/a/file1.ts",
+            content: `
+import { Foo } from "./type";
+const a: Foo = { bar : 1 };
+a.bar;`,
+        };
+        const file2 = {
+            path: "/a/file2.ts",
+            content: `
+import { Foo } from "./type";
+const a: Foo = { bar : 2 };
+a.bar;`,
+        };
+
+        const config1 = {
+            path: "/a/tsconfig.json",
+            content: jsonToReadableText({
+                extends: "../tsconfig.json",
+                compilerOptions: {
+                    importHelpers: true,
+                },
+            }),
+        };
+
+        const file3 = {
+            path: "/file3.js",
+            content: "console.log('noop');",
+        };
+        const config2 = {
+            path: "/tsconfig.json",
+            content: jsonToReadableText({
+                include: ["**/*"],
+            }),
+        };
+
+        const host = createServerHost([config2, config1, type1, file1, file2, file3]);
+        const session = new TestSession(host);
+
+        openFilesForSession([file3, file1], session);
+
+        session.executeCommandSeq<ts.server.protocol.ReferencesRequest>({
+            command: ts.server.protocol.CommandTypes.References,
+            arguments: {
+                file: file1.path,
+                line: 4,
+                offset: 3,
+            },
+        });
+
+        baselineTsserverLogs("importHelpers", "import helpers successfully", session);
+    });
+});