Warns when the user is using special webpack syntax #736
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I would like this to be a hard error. It was never officially supported and doesn't work with some officially supported features like testing. If somebody uses this in an open source React example and then we break this feature, people using that example will be utterly confused, as happened many times before with e.g. Babel. There won't be any "migration step" in the changelog for them because this feature is unsupported. So we'd rather disable it completely. |
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@gaearon okay, changed it, thanks for the explanation 👍 still, haven't really tested my implementation though |
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apparently create-react-app uses this syntax in quite a few places and the plugin is also evaluating third-party dependencies, as it can be seen on travis log |
| compiler.plugin('normal-module-factory', (normalModuleFactory) => { | ||
| normalModuleFactory.plugin('before-resolve', (data, callback) => { | ||
| let error = null; | ||
| if (data.request.match(/^-?!!?/)) { |
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It'd be best to use the exact same regexps as webpack uses for this (which I believe can be found here https://github.com/webpack/webpack/blob/master/lib/NormalModuleFactory.js#L86)
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The reason why the build is failing is because webpack uses this syntax internally, so we can't fully block it without breaking how webpack works. I think it would be easiest to add this as an ESLint rule, so it only forbids using this feature in user code: import-js/eslint-plugin-import#586 |
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Sorry for the wasted effort! Indeed a lint rule seems better in this case. |
This should solve #733
I haven't tested it yet as I'm in a hurry, so if you can, please do (:
Instead of throwing an error I am showing a warning because I didn't want to block users to use a feature just because it might break in the future, and force them to eject just because of a minor plugin.