absolute paths causes error on windows OS

[aelbore]

Describe the bug

when the paths are full path or absolute path it causes error when running in Windows
Note: it works on MacOSX

transformSync and bundle has same behavior

Input code

./src/index.ts

    import { displayB } from '@print/b'

    async function display() {
      const displayA = await import('@print/a').then(c => c.displayA)
      console.log(displayA())
      console.log(displayB())
    }

./packages/a/src/index.s

      export function displayA() {
        return 'Display A'
      }   

./packages/b/src/index.s

      export function displayB() {
        return 'Display B'
      }    

transform.ts

import { bundle } from "@swc/core"
import { join } from 'path'

(async function() {

  const result = await bundle({
    entry: {
      web: './src/index.ts'
    },
    output: {
      name: 'my-bundle',
      path: './dist'
    },
    options: {
      "jsc": {
        "parser": {
          "syntax": "typescript",
          "dynamicImport": true
        },
        "target": "es2020",
        "paths": {
          "@print/a": [ 
            join(process.cwd(), "./packages/a/src/index.ts")
          ],
          "@print/b": [ 
            join(process.cwd(), "./packages/b/src/index.ts")
          ]
        }
      },
      isModule: true
    },
    module: {}
  })

  console.log(result['web'].code)

})() 

### Config

_No response_

### Playground link

_No response_

### Expected behavior

It should work on Windows machine

### Actual behavior

_No response_

### Version

1.2.187

### Additional context

_No response_

[aelbore]

adding baseUrl = process.cwd() with paths that has relative path has same issue
im working on a project that baseUrl is dynamic which means anyone can set it

[kdy1]

Can you share more info, like the config to transform() (not bundle(), as it's useless

[aelbore]

@kdy1 you can use same config above with transform
where process.cwd() is C:\dev or any dynamic path
since i dont have baseUrl in the config i expected it will not be use (this is what i understand)

import { transformSync } from '@swc/core'
import { join } from 'path'

const content = `
import { displayB } from '@print/b'

async function display() {
  const displayA = await import('@print/a').then(c => c.displayA)
  console.log(displayA())
  console.log(displayB())
}

display()
`

const { code } = transformSync(content, {
  "jsc": {
    "parser": {
      "syntax": "typescript",
      "dynamicImport": true
    },
    "target": "es2020",
    "paths": {
      "@print/a": [ 
        join(process.cwd(), "./packages/a/src/index.ts")
      ],
      "@print/b": [ 
        join(process.cwd(), "./packages/b/src/index.ts")
      ]
    }
  },
  "module": {
    "type": "commonjs"
  }
})

console.log(code)

Output

"use strict";
var _b = require("C:\\dev\\packages\\b\\src\\index.ts");
function _getRequireWildcardCache() {
    if (typeof WeakMap !== "function") return null;
    var cache = new WeakMap();
    _getRequireWildcardCache = function() {
        return cache;
    };
    return cache;
}
function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
        return obj;
    }
    if (obj === null || typeof obj !== "object" && typeof obj !== "function") {
        return {
            default: obj
        };
    }
    var cache = _getRequireWildcardCache();
    if (cache && cache.has(obj)) {
        return cache.get(obj);
    }
    var newObj = {};
    var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor;
    for(var key in obj){
        if (Object.prototype.hasOwnProperty.call(obj, key)) {
            var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null;
            if (desc && (desc.get || desc.set)) {
                Object.defineProperty(newObj, key, desc);
            } else {
                newObj[key] = obj[key];
            }
        }
    }
    newObj.default = obj;
    if (cache) {
        cache.set(obj, newObj);
    }
    return newObj;
}
async function display() {
    const displayA = await Promise.resolve().then(function() {
        return _interopRequireWildcard(require("C:\\dev\\packages\\a\\src\\index.ts"));
    }).then((c)=>c.displayA);
    console.log(displayA());
    console.log((0, _b).displayB());
}
display();

Expected

"use strict";
var _b = require("C:\\dev\\packages\\b\\src\\index.ts");
function _getRequireWildcardCache() {
    if (typeof WeakMap !== "function") return null;
    var cache = new WeakMap();
    _getRequireWildcardCache = function() {
        return cache;
    };
    return cache;
}
function _interopRequireWildcard(obj) {
    if (obj && obj.__esModule) {
        return obj;
    }
    if (obj === null || typeof obj !== "object" && typeof obj !== "function") {
        return {
            default: obj
        };
    }
    var cache = _getRequireWildcardCache();
    if (cache && cache.has(obj)) {
        return cache.get(obj);
    }
    var newObj = {};
    var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor;
    for(var key in obj){
        if (Object.prototype.hasOwnProperty.call(obj, key)) {
            var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null;
            if (desc && (desc.get || desc.set)) {
                Object.defineProperty(newObj, key, desc);
            } else {
                newObj[key] = obj[key];
            }
        }
    }
    newObj.default = obj;
    if (cache) {
        cache.set(obj, newObj);
    }
    return newObj;
}
async function display() {
    const displayA = await Promise.resolve().then(function() {
        return _interopRequireWildcard(require("C:\\dev\\packages\\a\\src\\index.ts"));
    }).then((c)=>c.displayA);
    console.log(displayA());
    console.log((0, _b).displayB());
}
display();

[kdy1]

Seems like you make a mistake while copy-pasting expected output or actual output?
Those seem identical

[aelbore]

if you notice the Expected has absolute path compare to Output

[kdy1]

I searched by copying the path and it was identical

[kdy1]

Oh your config is wrong.
jsc.paths requires jsc.baseUrl

[aelbore]

Oh your config is wrong. jsc.paths requires jsc.baseUrl

yes adding baseUrl same issue.

[aelbore]

or maybe i missed how does the paths works with baseUrl

[aelbore]

anyway thanks for looking into it, i understand if this is not a priority, by the way thanks for swc i heavily using it on my own project

[aelbore]

as i checked baseUrl is optional if i didnt put any baseUrl what is the value of baseUrl?

[kdy1]

I don't remember.
Consult the typescript docs for paths

[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.