chore: do not use module.exports in the injected esm files (#21412)

Follow up to #17145

packages/playwright-core/src/server/dom.ts

@@ -103,7 +103,7 @@ export class FrameExecutionContext extends js.ExecutionContext {
         (() => {
         const module = {};
         ${injectedScriptSource.source}
-        return new module.exports(
+        return new (module.exports.InjectedScript())(
           globalThis,
           ${isUnderTest()},
           "${sdkLanguage}",

packages/playwright-core/src/server/injected/consoleApi.ts

@@ -128,4 +128,4 @@ class ConsoleAPI {
   }
 }
 
-module.exports = ConsoleAPI;
+export default ConsoleAPI;

packages/playwright-core/src/server/injected/injectedScript.ts

@@ -380,7 +380,7 @@ export class InjectedScript {
     (() => {
       const module = {};
       ${source}
-      return module.exports;
+      return module.exports.default();
     })()`);
     return new constrFunction(this, params);
   }
@@ -1504,5 +1504,3 @@ function deepEquals(a: any, b: any): boolean {
 
   return false;
 }
-
-module.exports = InjectedScript;

packages/playwright-core/src/server/injected/recorder.ts

@@ -487,7 +487,7 @@ interface Embedder {
   __pw_refreshOverlay(): void;
 }
 
-class PollingRecorder implements RecorderDelegate {
+export class PollingRecorder implements RecorderDelegate {
   private _recorder: Recorder;
   private _embedder: Embedder;
   private _pollRecorderModeTimer: NodeJS.Timeout | undefined;
@@ -535,4 +535,4 @@ class PollingRecorder implements RecorderDelegate {
   }
 }
 
-module.exports = PollingRecorder;
+export default PollingRecorder;

packages/playwright-core/src/server/injected/utilityScript.ts

@@ -70,5 +70,3 @@ export class UtilityScript {
     return safeJson(value);
   }
 }
-
-module.exports = UtilityScript;

packages/playwright-core/src/server/javascript.ts

@@ -122,7 +122,7 @@ export class ExecutionContext extends SdkObject {
       (() => {
         const module = {};
         ${utilityScriptSource.source}
-        return new module.exports();
+        return new (module.exports.UtilityScript())();
       })();`;
       this._utilityScriptPromise = this._raceAgainstContextDestroyed(this._delegate.rawEvaluateHandle(source).then(objectId => new JSHandle(this, 'object', undefined, objectId)));
     }

packages/trace-viewer/tsconfig.json

@@ -22,6 +22,10 @@
       "@recorder/*": ["../recorder/src/*"],
       "@trace/*": ["../trace/src/*"],
       "@web/*": ["../web/src/*"],
+      // Resolving type dependencies will start processing types in @playwright/test
+      // which in turn will start parsing the files and hence stumble upon the core
+      // imports.
+      "playwright-core/lib/*": ["../playwright-core/src/*"],
     },
     "useUnknownInCatchVariables": false,
   },

utils/generate_injected.js

@@ -29,23 +29,9 @@ const injectedScripts = [
   path.join(ROOT, 'packages', 'playwright-core', 'src', 'server', 'injected', 'recorder.ts'),
 ];
 
-const modulePrefix = `"use strict";
-let __export = (target, all) => {
-  for (var name in all)
-    target[name] = all[name];
-};
-let __commonJS = cb => function __require() {
-  let fn;
-  for (const name in cb) {
-    fn = cb[name];
-    break;
-  }
-  const exports = {};
-  fn(exports);
-  return exports;
-};
-let __toESM = mod => ({ ...mod, 'default': mod });
-let __toCommonJS = mod =>  ({ ...mod, __esModule: true });
+const modulePrefix = `
+var __export = (target, all) => {for (var name in all) target[name] = all[name];};
+var __toCommonJS = mod => ({ ...mod, __esModule: true });
 `;
 
 async function replaceEsbuildHeader(content, outFileJs) {
@@ -53,10 +39,10 @@ async function replaceEsbuildHeader(content, outFileJs) {
   if (sourcesStart === -1)
     throw new Error(`Did not find start of bundled code in ${outFileJs}`);
 
-  const preambule = content.substring(0, sourcesStart);
+  const preamble = content.substring(0, sourcesStart);
   // Replace standard esbuild definition with our own which do not depend on builtins.
   // See https://github.com/microsoft/playwright/issues/17029
-  if (preambule.indexOf('__toESM') !== -1 || preambule.indexOf('__toCommonJS') !== -1) {
+  if (preamble.indexOf('__toCommonJS') !== -1) {
     content = modulePrefix + content.substring(sourcesStart);
     await fs.promises.writeFile(outFileJs, content);
   }