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As recommended by `@babel/plugin-transform-runtime`'s documentation: > (...) and @babel/runtime as a production dependency (since it's for > the "runtime"). Otherwise other packages trying to use `lib/brython-runner.js` will fail to find the files necessary for the code generated by the pacakge `@babel/plugin-transform-runtime`.
Since this file is loaded as a raw string by
`lib/core/brython-runner.js`, calls like
`require("@babel/runtime/...")` will not be resolved by webpack and will
be kept in the resulting string. Because of that, the loaded string will
fail to run in a Web worker. In order to solve this, let us turn
`lib/core/brython-runner.worker.js` into a bundle, so that those
`require()` calls are already resolved during build time.
guludo
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Mar 8, 2021
Fixes to allow importing the library. Those where already sent to upstream as pull request: pythonpad/brython-runner#2
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Hi there!
I was trying to use this library in another project and ran into some problems:
@babel/runtimewas missing frombrython-runnerdependency list. So, when I usedimport BrythonRunner from 'brython-runner/lib/brython-runner.js', webpack complained that could not find the modules required by the code generated by the@babel/plugin-transform-runtimeplugin.lib/core/brython-runner.jsloadslib/core/brython-runner.worker.jsas a raw string, so calls likerequire("@babel/runtime/...")generated by@babel/plugin-transform-runtimeare not resolved by webpack. That results in the code failing to execute in the Web worker.In this pull request I address problem (1) by adding
@babel/runtimeas a dependency, as recommended by the documentation. This is done in the first commit.As for problem (2), instead of generating
lib/core/brython-runner.worker.jsin thecompile-js-babelGulp task, I change the build configuration so thatlib/core/brython-runner.worker.jsis generated as a bundle by webpack. This is done in the second commit.Finally, the third commit regenerates files in
lib/, which was done viayarn run build.I hope the changes proposed here do not break other workflows already in use! :-) If they do, what would be the way of using this library in another project using webpack?
Best regards,
Gustavo Sousa