support webpack5 new library type 'module'

[cncolder]

Issue description

Currently, It cannot parse properly when webpack5 config library type to module. Because webpack5 append some codes like export {a, b, c} to the end of the bundle.

const config: webpack.Configuration = {
  output: {
    libraryTarget: 'module',
  },
  experiments: {
    outputModule: true,
  },
  plugins: [new BundleAnalyzerPlugin({ analyzerMode: 'static' })],
}

Technical info

  System:
    OS: macOS 11.2.3
    CPU: (4) x64 Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz
    Memory: 3.01 GB / 24.00 GB
    Shell: 5.8 - /bin/zsh
  Binaries:
    Node: 15.11.0 - /usr/local/bin/node
    Yarn: 1.22.10 - /usr/local/bin/yarn
    npm: 7.6.0 - /usr/local/bin/npm
    Watchman: 4.9.0 - /usr/local/bin/watchman
  npmPackages:
    case-sensitive-paths-webpack-plugin: 2.4.0 => 2.4.0 
    fork-ts-checker-webpack-plugin: 6.2.0 => 6.2.0 
    webpack: 5.28.0 => 5.28.0 
    webpack-bundle-analyzer: 4.4.0 => 4.4.0 
    webpack-cli: 4.5.0 => 4.5.0 
    webpack-merge: 5.7.3 => 5.7.3 

Debug info

How do you use this module? As CLI utility or as plugin?

plugin

If CLI, what command was used? (e.g. webpack-bundle-analyzer -O path/to/stats.json)

If plugin, what options were provided? (e.g. new BundleAnalyzerPlugin({ analyzerMode: 'disabled', generateStatsFile: true }))

new BundleAnalyzerPlugin({ analyzerMode: 'static' })

What other Webpack plugins were used?

[valscion]

Thanks for opening an issue! PR is welcome ☺️

[kiranbayram]

@valscion Do you have any pointers how this can be implemented? I'd try to help if i can

[Airkro]

Turn

webpack-bundle-analyzer/src/parseUtils.js

Line 13 in d96ebed

sourceType: 'script',

To

sourceType: 'module'

will work

[opeologist]

any update on this? would love to analyze these types of bundles

[ml1nk]

I tried changing the sourceType but it didn't work. I think the data structure changes somewhat.

[dbrenot-pelmorex]

Heads up that this is still an issue.

[valscion]

Anyone who wants to can take a stab at fixing this with a PR ☺️

[rcherny]

Just as additional information, the proposed fix:

sourceType: 'module'

Resolved this for me.

[eamodio]

Same for me /cc @valscion

[webholics]

Also works for me. But is there an update planned?

[alexander-akait]

Feel free to send a pr or open an issue

[eamodio]

@alexander-akait I can send a PR that just switches to 'module', but I don't know what the other effects would be.

[alexander-akait]

I think we can get this value from configuration and switch safely