From 857165c280508e4201270c4a8d83703555fb4cce Mon Sep 17 00:00:00 2001
From: Jake Bailey <5341706+jakebailey@users.noreply.github.com>
Date: Sun, 23 Nov 2025 20:56:37 -0800
Subject: [PATCH 1/4] Don't require disabling TS extension to debug

---
 .vscode/launch.template.json |  2 --
 _extension/src/extension.ts  | 29 ++++++++++++++++++++---------
 2 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/.vscode/launch.template.json b/.vscode/launch.template.json
index e4271e658c..96c158a609 100644
--- a/.vscode/launch.template.json
+++ b/.vscode/launch.template.json
@@ -8,8 +8,6 @@
             "name": "Launch VS Code extension",
             "runtimeExecutable": "${execPath}",
             "args": [
-                "--disable-extension=vscode.typescript-language-features",
-                "--disable-extension=ms-vscode.vscode-typescript-next",
                 "--extensionDevelopmentPath=${workspaceRoot}/_extension"
             ],
             "outFiles": [
diff --git a/_extension/src/extension.ts b/_extension/src/extension.ts
index d1fe6036eb..9956df0979 100644
--- a/_extension/src/extension.ts
+++ b/_extension/src/extension.ts
@@ -45,19 +45,30 @@ export async function activate(context: vscode.ExtensionContext) {
     }));
 
     const useTsgo = vscode.workspace.getConfiguration("typescript").get<boolean>("experimental.useTsgo");
-    if (!useTsgo) {
-        if (context.extensionMode === vscode.ExtensionMode.Development) {
-            if (useTsgo === false) {
-                vscode.window.showInformationMessage(
-                    'TypeScript Native Preview is running in development mode. Ignoring "typescript.experimental.useTsgo": false.',
-                );
+    const tsExtension = vscode.extensions.getExtension("vscode.typescript-language-features");
+
+    if (context.extensionMode === vscode.ExtensionMode.Development) {
+        if (!tsExtension) {
+            if (!useTsgo) {
+                output.appendLine("TypeScript Native Preview: Built-in TypeScript extension is disabled. Using tsgo regardless of setting.");
             }
         }
-        else {
-            output.appendLine("TypeScript Native Preview is disabled. Select 'Enable TypeScript Native Preview (Experimental)' in the command palette to enable it.");
-            return;
+        else if (useTsgo === false) {
+            const selected = await vscode.window.showWarningMessage(
+                'TypeScript Native Preview is running in development mode with "typescript.experimental.useTsgo" set to false.',
+                "Enable Setting",
+                "Ignore",
+            );
+            if (selected === "Enable Setting") {
+                await vscode.commands.executeCommand("typescript.native-preview.enable");
+                return;
+            }
         }
     }
+    else if (!useTsgo) {
+        output.appendLine("TypeScript Native Preview is disabled. Select 'Enable TypeScript Native Preview (Experimental)' in the command palette to enable it.");
+        return;
+    }
 
     disposeLanguageFeatures = await activateLanguageFeatures(context, output, traceOutput);
     context.subscriptions.push(disposeLanguageFeatures);

From 20128a01a7fa1ce4cf7e517980ac09d0bc8ffd15 Mon Sep 17 00:00:00 2001
From: Jake Bailey <5341706+jakebailey@users.noreply.github.com>
Date: Sun, 23 Nov 2025 20:58:50 -0800
Subject: [PATCH 2/4] refactor

---
 _extension/src/extension.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/_extension/src/extension.ts b/_extension/src/extension.ts
index 9956df0979..1a8dbf9f1a 100644
--- a/_extension/src/extension.ts
+++ b/_extension/src/extension.ts
@@ -45,9 +45,9 @@ export async function activate(context: vscode.ExtensionContext) {
     }));
 
     const useTsgo = vscode.workspace.getConfiguration("typescript").get<boolean>("experimental.useTsgo");
-    const tsExtension = vscode.extensions.getExtension("vscode.typescript-language-features");
 
     if (context.extensionMode === vscode.ExtensionMode.Development) {
+        const tsExtension = vscode.extensions.getExtension("vscode.typescript-language-features");
         if (!tsExtension) {
             if (!useTsgo) {
                 output.appendLine("TypeScript Native Preview: Built-in TypeScript extension is disabled. Using tsgo regardless of setting.");

From f8416014459d140ba85363acc7d56dea57fd92ab Mon Sep 17 00:00:00 2001
From: Jake Bailey <5341706+jakebailey@users.noreply.github.com>
Date: Tue, 25 Nov 2025 09:48:11 -0800
Subject: [PATCH 3/4] PR feedback

---
 _extension/src/extension.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/_extension/src/extension.ts b/_extension/src/extension.ts
index 1a8dbf9f1a..9473fd85df 100644
--- a/_extension/src/extension.ts
+++ b/_extension/src/extension.ts
@@ -50,7 +50,10 @@ export async function activate(context: vscode.ExtensionContext) {
         const tsExtension = vscode.extensions.getExtension("vscode.typescript-language-features");
         if (!tsExtension) {
             if (!useTsgo) {
-                output.appendLine("TypeScript Native Preview: Built-in TypeScript extension is disabled. Using tsgo regardless of setting.");
+                await vscode.window.showWarningMessage(
+                    "The built-in TypeScript extension is disabled. Sync launch.json with launch.template.json to reenable.",
+                    "OK",
+                );
             }
         }
         else if (useTsgo === false) {

From 28c06ce34870f102d5d15ca6a1ef9994c6c48b1c Mon Sep 17 00:00:00 2001
From: Jake Bailey <5341706+jakebailey@users.noreply.github.com>
Date: Tue, 25 Nov 2025 10:05:28 -0800
Subject: [PATCH 4/4] Do not block startup

---
 _extension/src/extension.ts | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/_extension/src/extension.ts b/_extension/src/extension.ts
index 9473fd85df..2cfe44d603 100644
--- a/_extension/src/extension.ts
+++ b/_extension/src/extension.ts
@@ -50,22 +50,22 @@ export async function activate(context: vscode.ExtensionContext) {
         const tsExtension = vscode.extensions.getExtension("vscode.typescript-language-features");
         if (!tsExtension) {
             if (!useTsgo) {
-                await vscode.window.showWarningMessage(
+                vscode.window.showWarningMessage(
                     "The built-in TypeScript extension is disabled. Sync launch.json with launch.template.json to reenable.",
                     "OK",
                 );
             }
         }
         else if (useTsgo === false) {
-            const selected = await vscode.window.showWarningMessage(
+            vscode.window.showWarningMessage(
                 'TypeScript Native Preview is running in development mode with "typescript.experimental.useTsgo" set to false.',
                 "Enable Setting",
                 "Ignore",
-            );
-            if (selected === "Enable Setting") {
-                await vscode.commands.executeCommand("typescript.native-preview.enable");
-                return;
-            }
+            ).then(selected => {
+                if (selected === "Enable Setting") {
+                    vscode.commands.executeCommand("typescript.native-preview.enable");
+                }
+            });
         }
     }
     else if (!useTsgo) {