module: enable existing machinery for deferred imports

[MayaLekova]

This commit enables deferred module imports by using the corresponding functionality in V8. It also adds a single test, but more test coverage should be added.

Refs: https://github.com/tc39/proposal-defer-import-eval

[nodejs-github-bot]

Review requested:

• @nodejs/loaders
• @nodejs/vm

[joyeecheung]

I think the commit message needs to clarify that this only makes it work for static import, but not dynamic import yet?

[joyeecheung]

This needs to be moved into the test/fixtures folder, otherwise you get the linter complaints (and it gets to run by the python test runner).

[MayaLekova]

Thanks, moved it.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.35%. Comparing base (6813080) to head (6bb2db9).
⚠️ Report is 24 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff            @@
##             main   #63712    +/-   ##
========================================
  Coverage   90.34%   90.35%            
========================================
  Files         732      732            
  Lines      236580   236709   +129     
  Branches    44545    44585    +40     
========================================
+ Hits       213748   213870   +122     
- Misses      14536    14565    +29     
+ Partials     8296     8274    -22     

Files with missing lines	Coverage Δ
src/module_wrap.cc	74.41% <100.00%> (+0.04%)	⬆️
src/module_wrap.h	52.94% <ø> (ø)

... and 53 files with indirect coverage changes

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[MayaLekova]

Thank you, I moved the test, but should I add more extensive test coverage, even for static imports?

[joyeecheung]

I think a smoke test is enough. The rest should be covered by test262 in the upstream.

Can you rewrap the commit message to 72 chars to make the linter happy? Also this needs adding a eslint plugin

2026-06-03T13:01:48.8039114Z /home/runner/work/node/node/test/es-module/test-defer-import-eval.mjs
2026-06-03T13:01:48.8044324Z 10:7 error Parsing error: This experimental syntax requires enabling the parser plugin: "deferredImportEvaluation". (10:7)