Some corner case

[swc-project]

Some corner case

[muzea]

If just test, it doesn't seem to have much code to write a webpack loader.

const { transform } = require('swc')

module.exports = function(source) {
  const callback = this.async();
  new Promise(function() {
    callback(null, transform(source).code);
  })
};

work fine for me.

[muzea]

@useafterfree Just a simple demo
https://github.com/muzea-demo/swc-loader
use yarn link or npm link
https://github.com/muzea-demo/swc-loader-demo
Then install swc-loader in this project, run make.js to generate the lodash entry file.

[kdy1]

Thank you very much for trying swc.
The es3::reserved_word pass is not implemented yet, so I guess it's expected result.
I'll fix it after finishing jsx support.

[kdy1]

Fixed in version 0.1.0

[kdy1]

@muzea I implemented commonjs / umd module bundler.
You can use like

{
  "module": {
    "type": "commonjs"
  }
}

See: https://swc-project.github.io/docs/configuring-swc#module

[muzea]

@kdy1 Awesome.
Will swc add some real-world tests like v8?

[kdy1]

@muzea Definitely yes.
Note that currently swc already passes almost all tests copied from babel

[useafterfree]

@muzea How did you compile lodash with swc? Can you post an example?

[muzea]

@kdy1 Now I can run through the demo, very exciting work.
But the results here are very strange.
If entry file is ./src/lodash.js, only the meaningless assignments are included in the packaged results, and there are a lot of blank lines inside.
If entry file is ./src/test.js, result is

WARNING in ./src/test.js 2:12-18
"export 'default' (imported as 'lodash') was not found in './lodash'

It’s convenient to see why it is?

[kdy1]

I guess ./src/test.js resulted in error because es module transform is not implemented yet.

[muzea]

@kdy1 Corresponding to babel, is it babel-plugin-transform-modules-commonjs?

[kdy1]

@muzea You are correct. I'll implement it soon.

[kdy1]

I could compile whole lodash with swc-cli. Is it okay to close the issue?

I used npx swc -d out *.js

[muzea]

@kdy1 Transform a single file is no error, but I want to use it with webpack.

[muzea]

@kdy1 swc-cli seems to be a bit problematic(0.0.3), the lib directory after the bundle is not in the npm package.

[muzea]

@kdy1 nice, cli now work fine. Is there a configuration description of the transform?

[kdy1]

Currently it is documented only on index.d.ts
I'll add it to docs soon

See: https://swc-project.github.io/docs/configuring-swc#jsctransform

[muzea]

@kdy1 I see this example. If I want to transform to cjs or es3, how do I configure it?

[kdy1]

Currently it's not possible. I will implement module passes soon

[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.