Update fork from upstream 2026-07-01

.dprint.jsonc

@@ -52,14 +52,14 @@
         "internal/lsp/lsproto/_generate/*.json",
         "internal/lsp/lsproto/_generate/metaModelSchema.mts",
         // Needs to be LF to have a working shebang.
-        "_packages/native-preview/bin/tsgo.js",
+        "_packages/native-preview/bin/tsgo",
         "_packages/native-preview/vendor/**"
     ],
     // Note: if adding new languages, make sure settings.template.json is updated too.
     // Also, if updating typescript, update the one in package.json.
     "plugins": [
         "https://plugins.dprint.dev/typescript-0.96.1.wasm",
-        "https://plugins.dprint.dev/json-0.21.3.wasm",
+        "https://plugins.dprint.dev/json-0.22.0.wasm",
         "https://plugins.dprint.dev/g-plane/pretty_yaml-v0.6.0.wasm",
         "https://plugins.dprint.dev/jakebailey/gofumpt-v0.0.12.wasm"
     ]

.github/workflows/ci.yml

@@ -359,6 +359,8 @@ jobs:
 
       - run: npx hereby check:scripts
 
+      - run: npx hereby native-preview:check-platforms
+
   required:
     runs-on: ubuntu-slim
     if: ${{ always() }}

CHANGES.md

@@ -187,6 +187,22 @@ const FORWARD = 1,
   BACKWARD = 2;
 ```
 
+#### `arguments` usage within a JS function body no longer implies a `...args: any[]` parameter
+```js
+function f() {
+  return arguments[0];
+}
+f("something"); // Previously allowed, now an error
+```
+
+Instead, explicitly use a spread parameter:
+```js
+function f(...args) {
+  return args[0];
+}
+f("something"); // Still allowed
+```
+
 ### JSDoc Types
 
 #### JSDoc variadic types are now only synonyms for array types.

NOTICE.txt

@@ -221,7 +221,7 @@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 
 ---------------------------------------------------------
 
-github.com/go-json-experiment/json v0.0.0-20260601182631-00ed12fed2a6 - BSD-3-Clause
+github.com/go-json-experiment/json v0.0.0-20260623181947-01eb4420fa68 - BSD-3-Clause
 
 
 Copyright 2010 The Go Authors

_extension/package.json

@@ -252,12 +252,12 @@
     },
     "dependencies": {
         "@vscode/extension-telemetry": "^1.5.2",
-        "vscode-languageclient": "^10.0.0",
+        "vscode-languageclient": "^10.0.1",
         "vscode-tas-client": "^0.2.1"
     },
     "devDependencies": {
         "@types/vscode": "~1.110.0",
         "@vscode/vsce": "^3.9.2",
-        "esbuild": "^0.28.0"
+        "esbuild": "^0.28.1"
     }
 }

_extension/src/client.ts

@@ -89,7 +89,7 @@ export class Client implements vscode.Disposable {
                 sendNotification: sendNotificationMiddleware,
                 provideHover: () => undefined,
             },
-            diagnosticCollectionName: "typescript",
+            diagnosticCollectionName: "typescript-push",
             diagnosticPullOptions: {
                 onChange: true,
                 onSave: true,

_extension/src/util.ts

@@ -128,22 +128,35 @@ export function resolveTsdkPath(tsdkPath: string): string {
 }
 
 export async function resolveTsdkPathToExe(tsdkPath: string): Promise<{ path: string; version: string; } | undefined> {
-    if (tsdkPath.endsWith("/@typescript/native-preview") || tsdkPath.endsWith("\\@typescript\\native-preview")) {
+    const resolved = workspaceResolve(tsdkPath);
+    for (const packagePath of [resolved, vscode.Uri.joinPath(resolved, "..")]) {
         try {
-            const packagePath = workspaceResolve(tsdkPath);
             const packageJsonPath = vscode.Uri.joinPath(packagePath, "package.json");
             const packageJson = JSON.parse(await vscode.workspace.fs.readFile(packageJsonPath).then(buffer => buffer.toString()));
             // NOTE: Keep in sync with _packages/native-preview/lib/getExePath.js.
-            const exeName = `tsgo${process.platform === "win32" ? ".exe" : ""}`;
-            const platformPackage = `native-preview-${process.platform}-${process.arch}`;
-            const exePath = vscode.Uri.joinPath(packagePath, "..", platformPackage, "lib", exeName);
+            const name: unknown = packageJson.name;
+            const bin: unknown = packageJson.bin;
+            if (typeof name !== "string" || !bin || typeof bin !== "object") continue;
+
+            const baseName = name.startsWith("@") ? name.split("/")[1] : name;
+            if (!baseName) continue;
+            const expectedBinName = baseName === "typescript" ? "tsc" : "tsgo";
+            const binNames = Object.keys(bin);
+            if (binNames.length !== 1 || binNames[0] !== expectedBinName) continue;
+
+            const exeName = `${expectedBinName}${process.platform === "win32" ? ".exe" : ""}`;
+            const platformPackage = `${baseName}-${process.platform}-${process.arch}`;
+            const nodeModules = name.startsWith("@")
+                ? vscode.Uri.joinPath(packagePath, "..", "..")
+                : vscode.Uri.joinPath(packagePath, "..");
+            const exePath = vscode.Uri.joinPath(nodeModules, "@typescript", platformPackage, "lib", exeName);
             await vscode.workspace.fs.stat(exePath);
-            return { path: withLongPathPrefix(exePath.fsPath), version: packageJson.version };
+            return { path: withLongPathPrefix(exePath.fsPath), version: typeof packageJson.version === "string" ? packageJson.version : "unknown" };
         }
         catch {}
     }
     try {
-        const exePath = workspaceResolve(path.join(tsdkPath, `tsgo${process.platform === "win32" ? ".exe" : ""}`));
+        const exePath = vscode.Uri.joinPath(resolved, `tsgo${process.platform === "win32" ? ".exe" : ""}`);
         await vscode.workspace.fs.stat(exePath);
         return { path: withLongPathPrefix(exePath.fsPath), version: "(local)" };
     }

_packages/native-preview/bin/tsgo

@@ -0,0 +1,2 @@
+#!/usr/bin/env node
+import "../lib/tsgo.js";

_packages/native-preview/lib/getExePath.js

@@ -8,15 +8,27 @@ export default function getExePath() {
     const __dirname = path.dirname(fileURLToPath(import.meta.url));
     const normalizedDirname = __dirname.replace(/\\/g, "/");
 
+    const pkg = JSON.parse(fs.readFileSync(path.join(__dirname, "..", "package.json"), "utf8"));
+    const pkgName = pkg.name;
+    const baseName = pkgName.startsWith("@") ? pkgName.split("/")[1] : pkgName;
+    const expectedBinName = baseName === "typescript" ? "tsc" : "tsgo";
+    const binNames = pkg.bin && typeof pkg.bin === "object" ? Object.keys(pkg.bin) : [];
+    if (binNames.length !== 1 || binNames[0] !== expectedBinName) {
+        throw new Error(`Expected ${pkgName} to declare exactly one bin entry named ${expectedBinName}.`);
+    }
+    let binName = expectedBinName;
     let exeDir;
 
-    const expectedPackage = "native-preview-" + process.platform + "-" + process.arch;
+    const expectedPackage = baseName + "-" + process.platform + "-" + process.arch;
 
-    if (normalizedDirname.endsWith("/_packages/native-preview/lib")) {
+    if (normalizedDirname.endsWith("/_packages/" + baseName + "/lib")) {
         // We're running directly from source in the repo.
+        // The local repo build (`hereby build`) always produces `tsgo`, regardless
+        // of the published `bin` name, so don't use binName here.
         exeDir = path.resolve(__dirname, "..", "..", "..", "built", "local");
+        binName = "tsgo";
     }
-    else if (normalizedDirname.endsWith("/built/npm/native-preview/lib")) {
+    else if (normalizedDirname.endsWith("/built/npm/" + baseName + "/lib")) {
         // We're running from the built output.
         exeDir = path.resolve(__dirname, "..", "..", expectedPackage, "lib");
     }
@@ -42,7 +54,7 @@ export default function getExePath() {
         }
     }
 
-    let exe = path.join(exeDir, "tsgo");
+    let exe = path.join(exeDir, binName);
     if (process.platform === "win32") {
         exe += ".exe";
         if (exe.length >= 248) {

_packages/native-preview/bin/tsgo.js → _packages/native-preview/lib/tsgo.js

@@ -1,28 +1,28 @@
-#!/usr/bin/env node
-
-import getExePath from "#getExePath";
-import { execFileSync } from "node:child_process";
-
-const exe = getExePath();
-
-if (process.platform !== "win32" && typeof process.execve === "function") {
-    // > v22.15.0
-    try {
-        process.execve(exe, [exe, ...process.argv.slice(2)]);
-    }
-    catch {
-        // may not be available, ignore the error and fallback
-    }
-}
-
-try {
-    execFileSync(exe, process.argv.slice(2), { stdio: "inherit" });
-}
-catch (e) {
-    if (e.status) {
-        process.exitCode = e.status;
-    }
-    else {
-        throw e;
-    }
-}
+#!/usr/bin/env node
+
+import getExePath from "#getExePath";
+import { execFileSync } from "node:child_process";
+
+const exe = getExePath();
+
+if (process.platform !== "win32" && typeof process.execve === "function") {
+    // > v22.15.0
+    try {
+        process.execve(exe, [exe, ...process.argv.slice(2)]);
+    }
+    catch {
+        // may not be available, ignore the error and fallback
+    }
+}
+
+try {
+    execFileSync(exe, process.argv.slice(2), { stdio: "inherit" });
+}
+catch (e) {
+    if (e.status) {
+        process.exitCode = e.status;
+    }
+    else {
+        throw e;
+    }
+}

_packages/native-preview/lib/version.cjs

@@ -0,0 +1,3 @@
+const { version } = require("../package.json");
+exports.version = version;
+exports.versionMajorMinor = "7.0";

_packages/native-preview/lib/version.d.cts

@@ -0,0 +1,2 @@
+export declare const version: string;
+export declare const versionMajorMinor = "7.0";

_packages/native-preview/package.json

@@ -21,9 +21,6 @@
         "type": "git",
         "url": "https://github.com/microsoft/typescript-go.git"
     },
-    "publishConfig": {
-        "access": "public"
-    },
     "type": "module",
     "preferUnplugged": true,
     "engines": {
@@ -36,10 +33,11 @@
         "vendor"
     ],
     "bin": {
-        "tsgo": "./bin/tsgo.js"
+        "tsgo": "./bin/tsgo"
     },
     "exports": {
         "./package.json": "./package.json",
+        ".": "./lib/version.cjs",
         "./unstable/sync": {
             "@typescript/source": "./src/api/sync/api.ts",
             "default": "./dist/api/sync/api.js"
@@ -113,7 +111,7 @@
         "test": "npm run test:only"
     },
     "devDependencies": {
-        "@types/node": "^25.9.1",
+        "@types/node": "^25.9.4",
         "tinybench": "^6.0.2",
         "vscode-jsonrpc": "^9.0.0"
     }