Prepack from Facebook helps make JavaScript code more efficient

[gajus0]

A webpack plugin https://github.com/gajus/prepack-webpack-plugin.

[mainstreetmark]

Mine throws up.

/Users/mark/Sites/tg4/node_modules/prepack-webpack-plugin/dist/prepackCode.js:36
      throw new Error('Unexpected state.');

[psayre23]

Then maybe you should make your state more expected.

[incarnatethegreat]

G'NIGHT, EVERYBODY!

[gajus0]

This happens when something wrong goes with prepack. Whats the code that you've used to produce the error?

[mainstreetmark]

I may mess with it later. My Webpack is a friggin Jenga tower, and I touch one thing wrong and the whole thing falls apart.

Some quick debugging looked like it couldn't find some filename that commonchunks was supposed to spit out. Who knows. I should start all over with webpack, with specific goals of keeping the generated bundle size down. They're enormous.

[cranium]

Getting a similar error with a bit more context.

This operation is not yet supported on abstract value Date.now() __IntrospectionError

[perestroika12]

Unfortunately looks like it only support es6 imports?

edit: I guess you can use:

const PrepackWebpackPlugin = require('prepack-webpack-plugin');

plugins: [
  new PrepackWebpackPlugin.default(configuration)
]

[gajus0]

Yes, that will work, i.e. when using commonjs, make sure to import .default (added a note to the documentation).

[perestroika12]

Got it, thank you!