typescript paths alias

[yannbcf]

Describe the bug

I try to get the typescript path aliases to work since it should be working right now on the 1.2.65 swc core version, am i doing something wrong ?

TypeError [ERR_INVALID_MODULE_SPECIFIER]: Invalid module "@api" is not a valid package name imported from C:\Users\x\test\hello.js
    at packageResolve (internal/modules/esm/resolve.js:601:11)
    at moduleResolve (internal/modules/esm/resolve.js:691:18)
    at Loader.defaultResolve [as _resolve] (internal/modules/esm/resolve.js:805:11)
    at Loader.resolve (internal/modules/esm/loader.js:88:40)
    at Loader.getModuleJob (internal/modules/esm/loader.js:241:28)
    at ModuleWrap.<anonymous> (internal/modules/esm/module_job.js:72:40)
    at link (internal/modules/esm/module_job.js:71:36) {
  code: 'ERR_INVALID_MODULE_SPECIFIER'
}

Input code

api.ts

export const api = 0;

hello.ts

import { api } from '@api';
console.log('api', api);

Tsconfig

{
    "compileOnSave": false,
    "compilerOptions": {
        "baseUrl": ".",
        "paths": {
            "@api": ["src/api"]
        }
    }
}

Config

{
    "jsc": {
      "parser": {
        "syntax": "typescript",
        "dynamicImport": true
      },
      "target": "es2016",
      "paths": {
        "@api": ["src/api"]
      }
    },
    "minify": false
}

Expected behavior
It should replace the alias with a relative path

Version
1.2.65

[kwonoj]

tsc, or babel (unless separate plugin specified) both doesn't transpile alias to runtime resolvable path and each tool like webpack / jest specifies way to resolve, may swc would leave as-is as well? for some cases, I expect jsc.paths being used as resolve time only - it's not unusal runtime points to different based on tooling such as jest test points to stub mock instead of real module for path aliases.

[wi-ski]

Please please please - how do we fix this <3

[EarthlingDavey]

I found that I had to use a .swcrc file with no paths during the build. BTW the --config-file flag didn't work for me.
Then, something like this in package.json

...
"type": "module",
...
"build": "swc src  -d dist",
"start": "node --experimental-specifier-resolution=node dist/index.js",
...
"imports": {
    "#lib/*": "./dist/lib/*"
}

[swc-bot]

This closed issue has been automatically locked because it had no new activity for a month. If you are running into a similar issue, please create a new issue with the steps to reproduce. Thank you.