When there are multiple assignments perfer the outer name. #355
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rockwotj
commented
Sep 14, 2021
| @@ -10,7 +10,7 @@ export default t => path => { | |||
| let namedNode | |||
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| path.find(path => { | |||
| // const X = styled | |||
| // X = styled | |||
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This was backwards see: https://astexplorer.net/#/gist/3e299bf92f4651d5230a94ef129e5509/latest
| // want to pick the outer name because react-refresh will add HMR variables | ||
| // like this: X = _a = styled. We could also consider only doing this if the | ||
| // name starts with an underscore. | ||
| if (namedNode && !path.isAssignmentExpression()) return true |
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I'm also open to hiding this behavior behind a config option as well.
quantizor
approved these changes
Oct 18, 2021
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We're running styled-components within metro for react native - and metro runs it's babel plugins before ours. One of the plugins that runs is the HMR module (react-refresh), which changes our styled components from:
into the following:
In this case this plugin assigns the view the name of _c0 and it's preferred to use
Test. So I've patched thegetNamefunction to keep traversing if it's the the inner assignment and prefer the outer name. It still falls back to the inner name however.