baseUrl not working in Nest 10 with swc

[KirianCaumes]

Did you read the migration guide?

• I have read the whole migration guide

Is there an existing issue that is already proposing this?

• I have searched the existing issues

Potential Commit/PR that introduced the regression

No response

NestJS version

9.5.0 -> 10.0.5

Describe the regression

When I run npm run start (nest start) in my project with NestJs 10 and swc enabled, an error is thrown:

> test-nestjs@0.0.1 start
> nest start

✔  TSC  Initializing type checker...
>  TSC  Found 0 issues.
>  SWC  Running...
Successfully compiled: 5 files with swc (26.57ms)
Error: Cannot find module 'app.module'
Require stack:
- /home/kirian/Projects/Perso/test-nestjs/dist/main.js
    at Function.Module._resolveFilename (node:internal/modules/cjs/loader:995:15)
    at Function.Module._load (node:internal/modules/cjs/loader:841:27)
    at Module.require (node:internal/modules/cjs/loader:1061:19)
    at require (node:internal/modules/cjs/helpers:103:18)
    at Object.<anonymous> (/home/kirian/Projects/Perso/test-nestjs/dist/main.js:6:20)
    at Module._compile (node:internal/modules/cjs/loader:1159:14)
    at Object.Module._extensions..js (node:internal/modules/cjs/loader:1213:10)
    at Module.load (node:internal/modules/cjs/loader:1037:32)
    at Function.Module._load (node:internal/modules/cjs/loader:878:12)
    at Function.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:81:12)

It seems that the baseUrl option from my tsconfig.json and .swcrc is not recognized when using non-relative import.

Minimum reproduction code

https://github.com/KirianCaumes/nestjs-bug-swc-import

Input code

// src/main.ts
import { NestFactory } from '@nestjs/core';
import { AppModule } from 'app.module'; // 👈

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  await app.listen(5002);
}
bootstrap();

// nest-cli.json
{
  "$schema": "https://json.schemastore.org/nest-cli",
  "collection": "@nestjs/schematics",
  "sourceRoot": "src",
  "compilerOptions": {
    "builder": "swc",
    "typeCheck": true
  }
}

// .swcrc
{
    "$schema": "https://json.schemastore.org/swcrc",
    "sourceMaps": true,
    "jsc": {
        "parser": {
            "syntax": "typescript",
            "decorators": true,
            "dynamicImport": true
        },
        "baseUrl": "./src"
    },
    "minify": false
}

// tsconfig.json
{
  "compilerOptions": {
    "module": "commonjs",
    "declaration": true,
    "removeComments": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "allowSyntheticDefaultImports": true,
    "target": "es2017",
    "sourceMap": true,
    "outDir": "./dist",
    "baseUrl": "./src",
    "incremental": true,
    "skipLibCheck": true,
    "strictNullChecks": false,
    "noImplicitAny": false,
    "strictBindCallApply": false,
    "forceConsistentCasingInFileNames": false,
    "noFallthroughCasesInSwitch": false
  }
}

Expected behavior

It should work the same way as without swc enabled and with baseUrl being used.

Other

No response

[kamilmysliwiec]

Please, report this issue in the swc https://github.com/swc-project/swc repository