feat(vite-plugin): add error handling for dynamic import of @lingui/macro

[maastrich]

Description

Make sure the user understands why @lingui/macro is not handled by babel/swc when dynamically imported.

Types of changes

• [ ] Bugfix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] Documentation update
• [ ] Examples update

Checklist

• [x] I have read the CONTRIBUTING and CODE_OF_CONDUCT docs
• [x] I have added tests that prove my fix is effective or that my feature works
• [ ] I have added the necessary documentation (if appropriate)

[vercel[bot]]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated (UTC)
js-lingui	✅ Ready (Inspect)	Visit Preview	Aug 4, 2025 7:58am

[github-actions[bot]]

size-limit report 📦

Path	Size
./packages/core/dist/index.mjs	2.88 KB (0%)
./packages/detect-locale/dist/index.mjs	723 B (0%)
./packages/react/dist/index.mjs	1.68 KB (0%)
./packages/remote-loader/dist/index.mjs	7.26 KB (0%)

[timofei-iatsenko]

LGTM, thanks for contribution

[codecov[bot]]

Codecov Report

:x: Patch coverage is 0% with 4 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 76.66%. Comparing base (6bb8983) to head (6a2ab2b). :warning: Report is 212 commits behind head on main.

Files with missing lines	Patch %	Lines
packages/vite-plugin/src/index.ts	0.00%	2 Missing :warning:
...ite-plugin/test/dynamic-macro-error/vite.config.ts	0.00%	2 Missing :warning:

:x: Your patch status has failed because the patch coverage (0.00%) is below the target coverage (70.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2056      +/-   ##
==========================================
- Coverage   77.05%   76.66%   -0.39%     
==========================================
  Files          84       90       +6     
  Lines        2157     2507     +350     
  Branches      555      652      +97     
==========================================
+ Hits         1662     1922     +260     
- Misses        382      468      +86     
- Partials      113      117       +4     

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[timofei-iatsenko]

@maastrich are you going to add something to this PR or you finished? We are preparing v5 release and it would be better to switch it to the next branch.

[andrii-bodnar]

Hi @maastrich, is there anything we can do to move this PR forward?

[timofei-iatsenko]

@andrii-bodnar @maastrich i adjusted the code to the latest version, please review and merge it. Thanks

[andrii-bodnar]

By the way, is it really a feature? It's more like something that should be included in a patch update, not a minor one.

[timofei-iatsenko]

@andrii-bodnar correct, adjusted the PR name

[timofei-iatsenko]

@andrii-bodnar please use squash and merge, when merging this PR to avoid bloat in the git history. Thanks