dev mode / react server component / wrong line number in stack trace

[aheissenberger]

Describe the bug

I throw an error in a function which is imported into a server function from an other file.
This problem does not exist for errors thrown directly inside the server component!

Expected at allTodos (file:///examples/todo/src/actions.ts:43:13) received at allTodos (file:///examples/todo/src/actions.ts:33:9)

Test error from allTodos
6:26:52 PM [react-server]   [stack]: Error: Test error from allTodos
6:26:52 PM [react-server]     at allTodos (file:///examples/todo/src/actions.ts:33:9)
6:26:52 PM [react-server]     at Index (file:///examples/todo/src/index.tsx:18:50)
6:26:52 PM [react-server]     at resolveErrorDev (/node_modules/.pnpm/react-server-dom-webpack@0.0.0-experimental-ead92181-20251010_react-dom@0.0.0-experimen_69770d6597d61840773bd1aea1d0fff4/node_modules/react-server-dom-webpack/cjs/react-server-dom-webpack-client.edge.development.js:3230:30)
6:26:52 PM [react-server]     at processFullBinaryRow (/node_modules/.pnpm/react-server-dom-webpack@0.0.0-experimental-ead92181-20251010_react-dom@0.0.0-experimen_69770d6597d61840773bd1aea1d0fff4/node_modules/react-server-dom-webpack/cjs/react-server-dom-webpack-client.edge.development.js:4367:27)
6:26:52 PM [react-server]     at progress (/node_modules/.pnpm/react-server-dom-webpack@0.0.0-experimental-ead92181-20251010_react-dom@0.0.0-experimen_69770d6597d61840773bd1aea1d0fff4/node_modules/react-server-dom-webpack/cjs/react-server-dom-webpack-client.edge.development.js:4681:17)

Reproduction

No response

Steps to reproduce

1. add throw new Error("Test error from allTodos"); in the file examples/todo/src/actions.ts after Lin 42.
2. start application with pnpm dev and open browser

System Info

System:
    OS: macOS 15.7.1
    CPU: (12) arm64 Apple M4 Pro
    Memory: 318.22 MB / 48.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 25.2.0 - /opt/homebrew/bin/node
    npm: 11.6.2 - /opt/homebrew/bin/npm
    pnpm: 10.20.0 - /opt/homebrew/bin/pnpm
  Browsers:
    Chrome: 142.0.7444.162
  npmPackages:
    @lazarv/react-server: workspace:^ => 0.0.0

Used Package Manager

pnpm

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion.
• The provided reproduction is a minimal reproducible example of the bug.

[lazarv]

This should work now with the latest version of the framework. astring was not applying the mapping for all nodes in the AST. I hope that using astring could be replaced in the future for an Oxc tool to generate code from AST.

[github-actions]

This issue has been locked since it has been closed for more than 30 days.

If you have found a concrete bug or regression related to it, please open a new bug report with a reproduction against the latest version of @lazarv/react-server. If you have any other comments you should create a new discussion.