[Bug]: Rspack Dev Tools Slow when source-maps are generated using "eval" option about rspack

[SyMind]

@pushkargupta9807 I am following up on this issue.

[github-actions]

Hello @pushkargupta9807, sorry we can't investigate the problem further without reproduction demo, please provide a repro demo by forking rspack-repro, or provide a minimal GitHub repository by yourself. Issues labeled by need reproduction will be closed if no activities in 14 days.

[pushkargupta9807]

@LingyuCoder @h-a-n-a
here is the repro repo for this issue: https://github.com/pushkargupta9807/rspack-repro-latest

yarn
yarn dev:rspack // for rspack serve

Intructions:

1. yarn dev:rspack with devTools: "eval-cheap-source-map"
   
2. yarn dev:webpack with with devTools: "eval-cheap-source-map"
   

you can clearly repro the above and see the difference in the way source files are loaded with this devTools option with eval.
This is the reason for I frequently have my whole tab freeze / crash while I try to do anything (ex: nav through the stack trace) in the sources tab when a breakpoint is hit. This is very bad in large repo and makes impossible to debug .

[pushkargupta9807]

with the "eval" optimization removed from the devtools, it works fine with rspack :
yarn dev:rspack with devTools: "cheap-source-map"

[pushkargupta9807]

a gentle follow up, @SyMind hopefully you are able to repro the issue. Thanks

[pushkargupta9807]

hello, @SyMind @h-a-n-a just wanted to check if any updates on this issue. Please let me know if you are not able to repro or any other clarification. This is a pain point for all the developers and it would be great to have it resolved. Thanks

[SyMind]

@pushkargupta9807 I fixed it. Please try again.

[pushkargupta9807]

Thank you @SyMind . Let me try and get back.

[pushkargupta9807]

@SyMind I tried with the Rspack 0.7.6-canary-f272bd8-20240625122346 and Rspack 0.7.5 versions - however the issue still remains. Is the fixed merged in these versions?

Still do not see the file tree structure with "eval-cheap-module-source-map":
"eval-cheap-module-source-map"

vs without "eval"

[pushkargupta9807]

@SyMind just a follow up, I do not think the issue is fixed. Can you please check. Thanks