[Bug]: ConcatenateModules optimization affect on sourcemaps

[mrakobes27]

System Info

System:
OS: Windows 10 10.0.19044
CPU: (8) x64 AMD Ryzen 7 5700G with Radeon Graphics
Memory: 8.30 GB / 19.52 GB
Binaries:
Node: 18.19.0 - C:\Program Files\nodejs\node.EXE
Yarn: 1.22.19 - ~\AppData\Roaming\npm\yarn.CMD
npm: 10.2.3 - C:\Program Files\nodejs\npm.CMD
Browsers:
Edge: Spartan (44.19041.1266.0), Chromium (123.0.2420.97)
Internet Explorer: 11.0.19041.1566
npmPackages:
@rspack/cli: 0.6.5 => 0.6.5
@rspack/core: 0.6.5 => 0.6.5
@rspack/plugin-minify: 0.6.5 => 0.6.5
@rspack/plugin-react-refresh: 0.6.5 => 0.6.5

Details

When enabled "concatenateModules" optimization "sourcemaps" are broken
(offsets of original sourcemaps of concatenated js-modules are not recalculated).

When disabling this optimization, the sourcemaps are generated correctly (I checked it through the sourcemaps visualizer - https://sokra.github.io/source-map-visualization/#custom)

Reproduce link

No response

Reproduce Steps

In the source code where you can check the operation of the "concatenateModules" optimization, try to enable/disable this option, and make sure that in one case the "sourcemaps" are formed correctly, and in the other they are not (including the impossibility of setting a breakpoint)

[mrakobes27]

Moreover, even if the "concatenation" is performed on one module (out of many existing ones), the source maps are broken for all subsequent code in the bundle.

[JSerFeng]

Can you give me a reproduce repo ? I tried a easy demo seems fine here:

[github-actions]

Hello @mrakobes27, 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.

[SyMind]

@mrakobes27 @JSerFeng Maybe fixed in #6793

[github-actions]

Since the issue was labeled with need reproduction, but no response in 14 days. This issue will be closed. Feel free to comment and reopen it if you have any further questions.