swc-project / swc-project/swc-node

`@swc-node/register` broken imports

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Dominant language
TypeScript
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Description

According to https://github.com/nrwl/nx/issues/18985#issuecomment-1704448088 - last change in @swc-node/register which added baseUrl to tsconfig broke nx generators, eg:

// /path/to/file.ts
import { something } from  './subdir';

// /path/to/subdir/index.ts
export const something = 1;

This throws an error: Cannot find module './subdir/index.js'

At least such a change should not be added as a bugfix, cause it broke bacward compatibility.

This worked great in @swc-node/register@1.6.6 and has been broken in 1.6.7

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the import failure in @swc-node/register with the shown tsconfig/baseUrl scenario and compare versions 1.6.6 and 1.6.7. Trace how the register hook resolves './subdir' for nx generators, then add coverage for the demonstrated import; done means the import resolves without regressing the older behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
typescript
Domain
developer-experience, tooling
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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