chore: don't use Object.freeze for internal properties (#10945)

packages/puppeteer-core/src/bidi/Page.ts

@@ -104,7 +104,7 @@ export class BidiPage extends Page {
     ],
     ['browsingContext.userPromptOpened', this.#onDialog.bind(this)],
   ]);
-  #networkManagerEvents = Object.freeze([
+  readonly #networkManagerEvents = [
     [
       NetworkManagerEvent.Request,
       (request: BidiHTTPRequest) => {
@@ -135,9 +135,9 @@ export class BidiPage extends Page {
         this.emit(PageEvent.Response, response);
       },
     ],
-  ] as const);
+  ] as const;
 
-  #browsingContextEvents = new Map<symbol, Handler<any>>([
+  readonly #browsingContextEvents = new Map<symbol, Handler<any>>([
     [BrowsingContextEvent.Created, this.#onContextCreated.bind(this)],
     [BrowsingContextEvent.Destroyed, this.#onContextDestroyed.bind(this)],
   ]);

packages/puppeteer-core/src/cdp/AriaQueryHandler.ts

@@ -44,11 +44,10 @@ interface ARIASelector {
   role?: string;
 }
 
-const KNOWN_ATTRIBUTES = Object.freeze(['name', 'role']);
 const isKnownAttribute = (
   attribute: string
 ): attribute is keyof ARIASelector => {
-  return KNOWN_ATTRIBUTES.includes(attribute);
+  return ['name', 'role'].includes(attribute);
 };
 
 const normalizeValue = (value: string): string => {

packages/puppeteer-core/src/cdp/NetworkManager.ts

@@ -113,7 +113,7 @@ export class NetworkManager extends EventEmitter<CdpNetworkManagerEvents> {
   #userAgent?: string;
   #userAgentMetadata?: Protocol.Emulation.UserAgentMetadata;
 
-  #handlers = Object.freeze([
+  readonly #handlers = [
     ['Fetch.requestPaused', this.#onRequestPaused],
     ['Fetch.authRequired', this.#onAuthRequired],
     ['Network.requestWillBeSent', this.#onRequestWillBeSent],
@@ -123,7 +123,7 @@ export class NetworkManager extends EventEmitter<CdpNetworkManagerEvents> {
     ['Network.loadingFailed', this.#onLoadingFailed],
     ['Network.responseReceivedExtraInfo', this.#onResponseReceivedExtraInfo],
     [CDPSessionEvent.Disconnected, this.#removeClient],
-  ] as const);
+  ] as const;
 
   #clients = new Map<CDPSession, DisposableStack>();
 

packages/puppeteer-core/src/cdp/Page.ts

@@ -143,7 +143,7 @@ export class CdpPage extends Page {
   #serviceWorkerBypassed = false;
   #userDragInterceptionEnabled = false;
 
-  #frameManagerHandlers = Object.freeze([
+  readonly #frameManagerHandlers = [
     [
       FrameManagerEvent.FrameAttached,
       (frame: CdpFrame) => {
@@ -162,9 +162,9 @@ export class CdpPage extends Page {
         this.emit(PageEvent.FrameNavigated, frame);
       },
     ],
-  ] as const);
+  ] as const;
 
-  #networkManagerHandlers = Object.freeze([
+  readonly #networkManagerHandlers = [
     [
       NetworkManagerEvent.Request,
       (request: HTTPRequest) => {
@@ -195,9 +195,9 @@ export class CdpPage extends Page {
         this.emit(PageEvent.RequestFinished, request);
       },
     ],
-  ] as const);
+  ] as const;
 
-  #sessionHandlers = Object.freeze([
+  readonly #sessionHandlers = [
     [
       CDPSessionEvent.Disconnected,
       () => {
@@ -226,7 +226,7 @@ export class CdpPage extends Page {
     ['Performance.metrics', this.#emitMetrics.bind(this)],
     ['Log.entryAdded', this.#onLogEntryAdded.bind(this)],
     ['Page.fileChooserOpened', this.#onFileChooser.bind(this)],
-  ] as const);
+  ] as const;
 
   constructor(
     client: CDPSession,

packages/puppeteer-core/src/common/GetQueryHandler.ts

@@ -23,15 +23,12 @@ import type {QueryHandler} from './QueryHandler.js';
 import {TextQueryHandler} from './TextQueryHandler.js';
 import {XPathQueryHandler} from './XPathQueryHandler.js';
 
-/**
- * @internal
- */
-export const BUILTIN_QUERY_HANDLERS = Object.freeze({
+const BUILTIN_QUERY_HANDLERS = {
   aria: ARIAQueryHandler,
   pierce: PierceQueryHandler,
   xpath: XPathQueryHandler,
   text: TextQueryHandler,
-});
+} as const;
 
 const QUERY_SEPARATORS = ['=', '/'];
 
@@ -42,7 +39,7 @@ export function getQueryHandlerByName(
   name: string
 ): typeof QueryHandler | undefined {
   if (name in BUILTIN_QUERY_HANDLERS) {
-    return BUILTIN_QUERY_HANDLERS[name as 'aria'];
+    return BUILTIN_QUERY_HANDLERS[name as keyof typeof BUILTIN_QUERY_HANDLERS];
   }
   return customQueryHandlers.get(name);
 }