[React Transform HMR] Patching _$Unknown when using ES6 classes with default export about babel-plugin-react-transform HOT 5 CLOSED

If it's an anonymous class, I'd say it's expected, isn't it?
Does the class name somehow get inferred without this plugin?

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Well, in this case it should be a file name. At least this is how Babel infers displayNames into it: https://babeljs.io/docs/usage/jsx/

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Did you add Babel displayName plugin before React Transform? Maybe it runs by default but is disabled when you specify plugins explicitly.

In the README we mention that you need to put it before React Transform if you want its behavior.

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Yes, it's there but I believe that this _default issue might be somehow related to this plugin.

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I'm closing this one, since it seems inferring displayName from filename doesn't work with ES2015 classes: https://phabricator.babeljs.io/T1331

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