Error around nested __webpack_require__ #20511
Description
Bug Description
Hi there!
Since 5.103.0, I'm getting the following error:
Chrome 144.0.0.0 (Windows 10) ERROR
Uncaught TypeError: __webpack_modules__[moduleId] is not a function
at webpack://my-little-project/./node_modules/@jest/expect-utils/build/index.js?:692:41
TypeError: __webpack_modules__[moduleId] is not a function
at __nested_webpack_require_24761__ (webpack://my-little-project/./node_modules/@jest/expect-utils/build/index.js?:692:41)
at ./src/utils.ts (webpack://my-little-project/./node_modules/@jest/expect-utils/build/index.js?:321:16)
at __nested_webpack_require_24761__ (webpack://my-little-project/./node_modules/@jest/expect-utils/build/index.js?:692:41)
at ./src/index.ts (webpack://my-little-project/./node_modules/@jest/expect-utils/build/index.js?:90:14)
at __nested_webpack_require_24761__ (webpack://my-little-project/./node_modules/@jest/expect-utils/build/index.js?:692:41)
at eval (webpack://my-little-project/./node_modules/@jest/expect-utils/build/index.js?:703:44)
at eval (webpack://my-little-project/./node_modules/@jest/expect-utils/build/index.js?:706:12)
at ./node_modules/@jest/expect-utils/build/index.js (out/r426686/commons.js:379:1)
at __webpack_require__ (out/r426686/runtime.js:31:42)
at eval (webpack://my-little-project/./node_modules/@jest/expect-utils/build/index.mjs?:19:67)
I have tried the most recent version 5.105.2, and the error persists. I believe it has something to do with this change mentioned in the 5.103.0 changelog:
Rename single nested
__webpack_export__and__webpack_require__in already bundled code
This seems to cause problems with a couple of jest packages, e.g. @jest/expect-utils, which redefine __webpack_require__. Example:
- https://www.npmjs.com/package/@jest/expect-utils/v/30.2.0?activeTab=code
- Go to
build/index.js __webpack_require__is redefined on line 678
The error seems to happen on line 321:
321 var _getType = require("@jest/get-type");
322 var _immutableUtils = __webpack_require__("./src/immutableUtils.ts");
323 var _jasmineUtils = __webpack_require__("./src/jasmineUtils.ts");
We can see that we're calling the redefined function on lines 322 & 323, but we seem to want to call webpack's original function on line 321, since __webpack_modules__ of the redefined function doesn't contain an entry for @jest/get-type. This is confirmed in the debugger:
The problem is that on webpack >= 5.103, the function that is called on line 321 is the redefined function, instead of the original function. If I rename the redefined function to abc123, I no longer have the error.
My understanding of all this is rather limited. Is this a bug in webpack or in jest? Any help is appreciated. Thank you very much in advance!
Edit: These are the relevant lines:
When I have the error:
After renaming the locally declared function to abc123:
Environment
System:
OS: Windows 11 10.0.26200
CPU: (22) x64 Intel(R) Core(TM) Ultra 9 185H
Memory: 38.61 GB / 63.43 GB
Binaries:
Node: 22.15.1 - C:\Program Files\nodejs\node.EXE
Yarn: 1.22.22 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
npm: 10.9.2 - C:\Program Files\nodejs\npm.CMD
Browsers:
Chrome: 144.0.7559.133
Edge: Chromium (143.0.3650.96)
Firefox: 147.0.4 - C:\Program Files\Mozilla Firefox\firefox.exe
Monorepos:
Yarn Workspaces: 1.22.22
Lerna: 5.1.8
Packages:
babel-loader: 10.0.0 => 10.0.0
coverage-istanbul-loader: 3.0.5 => 3.0.5
html-webpack-plugin: 5.6.6 => 5.6.6
karma-webpack: 5.0.1 => 5.0.1
karma-webpack-preprocessor: 1.0.1 => 1.0.1
ts-loader: 9.5.4 => 9.5.4
webpack: 5.103.0 => 5.103.0