From b3a3845892fd4c44536ab643c1b23d83bf7c8451 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20Z=C3=BCnd?= <szuend@chromium.org>
Date: Mon, 20 Oct 2025 10:40:57 +0200
Subject: [PATCH 1/3] feat: Add DevTools connection adapter

---
 src/DevToolsConnectionAdapter.ts | 40 ++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 src/DevToolsConnectionAdapter.ts

diff --git a/src/DevToolsConnectionAdapter.ts b/src/DevToolsConnectionAdapter.ts
new file mode 100644
index 000000000..abcc48046
--- /dev/null
+++ b/src/DevToolsConnectionAdapter.ts
@@ -0,0 +1,40 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import {type ConnectionTransport} from 'puppeteer-core';
+import {Connection} from '../node_modules/chrome-devtools-frontend/front_end/core/protocol_client/InspectorBackend.js';
+
+/**
+ * Allows a puppeteer {@link ConnectionTransport} to act like a DevTools {@link Connection}.
+ */
+class DevToolsConnectionAdapter extends Connection {
+  #transport: ConnectionTransport|null;
+  #onDisconnect: ((arg0: string) => void) | null = null;
+
+  constructor(transport: ConnectionTransport) {
+    super();
+    this.#transport = transport;
+    this.#transport.onclose = () => this.#onDisconnect?.('');
+    this.#transport.onmessage = (msg) => this.onMessage?.(msg);
+  }
+
+  override setOnMessage(onMessage: (arg0: Object|string) => void): void {
+    this.onMessage = onMessage;
+  }
+
+  override setOnDisconnect(onDisconnect: (arg0: string) => void): void {
+    this.#onDisconnect = onDisconnect;
+  }
+
+  override sendRawMessage(message: string): void {
+    this.#transport?.send(message);
+  }
+
+  override async disconnect(): Promise<void> {
+    this.#transport?.close();
+    this.#transport = null;
+  }
+}

From 3b910d7a7b089e6644f8f9821557dd251dd780fa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20Z=C3=BCnd?= <szuend@chromium.org>
Date: Mon, 20 Oct 2025 10:54:31 +0200
Subject: [PATCH 2/3] Format and mark DevToolsConnectionAdapter as unused for
 now

---
 src/DevToolsConnectionAdapter.ts | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/DevToolsConnectionAdapter.ts b/src/DevToolsConnectionAdapter.ts
index abcc48046..d1c4b55d6 100644
--- a/src/DevToolsConnectionAdapter.ts
+++ b/src/DevToolsConnectionAdapter.ts
@@ -5,23 +5,24 @@
  */
 
 import {type ConnectionTransport} from 'puppeteer-core';
+
 import {Connection} from '../node_modules/chrome-devtools-frontend/front_end/core/protocol_client/InspectorBackend.js';
 
 /**
  * Allows a puppeteer {@link ConnectionTransport} to act like a DevTools {@link Connection}.
  */
-class DevToolsConnectionAdapter extends Connection {
-  #transport: ConnectionTransport|null;
+class _DevToolsConnectionAdapter extends Connection {
+  #transport: ConnectionTransport | null;
   #onDisconnect: ((arg0: string) => void) | null = null;
 
   constructor(transport: ConnectionTransport) {
     super();
     this.#transport = transport;
     this.#transport.onclose = () => this.#onDisconnect?.('');
-    this.#transport.onmessage = (msg) => this.onMessage?.(msg);
+    this.#transport.onmessage = msg => this.onMessage?.(msg);
   }
 
-  override setOnMessage(onMessage: (arg0: Object|string) => void): void {
+  override setOnMessage(onMessage: (arg0: object | string) => void): void {
     this.onMessage = onMessage;
   }
 

From 6ee60da8ab6a609a3a063d6eb0398cb19ce930bc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20Z=C3=BCnd?= <simon.zuend@gmail.com>
Date: Mon, 20 Oct 2025 10:59:08 +0200
Subject: [PATCH 3/3] Export class instead of prefixing with underscore.

Co-authored-by: Alex Rudenko <OrKoN@users.noreply.github.com>
---
 src/DevToolsConnectionAdapter.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/DevToolsConnectionAdapter.ts b/src/DevToolsConnectionAdapter.ts
index d1c4b55d6..814dc7f60 100644
--- a/src/DevToolsConnectionAdapter.ts
+++ b/src/DevToolsConnectionAdapter.ts
@@ -11,7 +11,7 @@ import {Connection} from '../node_modules/chrome-devtools-frontend/front_end/cor
 /**
  * Allows a puppeteer {@link ConnectionTransport} to act like a DevTools {@link Connection}.
  */
-class _DevToolsConnectionAdapter extends Connection {
+export class DevToolsConnectionAdapter extends Connection {
   #transport: ConnectionTransport | null;
   #onDisconnect: ((arg0: string) => void) | null = null;