Do not strip flow import type declarations

The latest version of Babel 7 strips out flow import type declarations by default. They used to be included with earlier versions of Babel 7 and 6. Whilst it makes sense to remove them, is there an easy way to keep them and treat them as regular imports, as the app I’m working on uses flow-runtime and relies on the types to work.

Is there an existing plugin that can do this, or do I need to write my own? At the moment I’m replacing import type with import as a build step before running babel, but if feels like there should be a way to do it all within Babel.

[djvern]

@nicolo-ribaudo thanks for the info - after a bit more investigating I realised the issue was with flow-runtime and the plugin babel-plugin-flow-runtime. There’s a fix in the latest version which has resolved the issue if it helps anyone else: https://github.com/gajus/flow-runtime/issues/254

[nicolo-ribaudo]

Babel by default doesn’t transform your code, you are unknowingly enabling the flow transform somewhere.

You can post the output of BABEL_SHOW_CONFIG_FOR (use your build command instead of npm start) if you need help figuring out where it’s enabled.