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Fix transforming empty export statement #9171

merged 1 commit into from Dec 13, 2018


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danez commented Dec 12, 2018

Q                       A
Fixed Issues? Fixes #9155
Patch: Bug Fix? y
Major: Breaking Change? n
Minor: New Feature? n
Tests Added + Pass? Yes
Documentation PR Link
Any Dependency Changes?
License MIT

This adds a new flag indicating if the module has exports and removes the current logic to detect that. This fixes the case when an export statement is present but does not really export anything: export {}


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babel-bot commented Dec 12, 2018

Build successful! You can test your changes in the REPL here:

@@ -52,18 +54,7 @@ export type LocalExportMetadata = {
* Check if the module has any exports that need handling.
export function hasExports(metadata: ModuleMetadata) {

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nicolo-ribaudo Dec 12, 2018


Is this function still needed?

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danez Dec 12, 2018

Author Member

No, but as it is a separate package I cannot remove it without breaking backwards compatibility if a mix between old and new version of Babel packages is used. At first I also wanted to use meta.hasExports directly in the transforms, but I ended up not doing it for the same reason.

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loganfsmyth left a comment


@danez danez merged commit f4eec5c into babel:master Dec 13, 2018
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@danez danez deleted the danez:fix-9155 branch Dec 13, 2018
@lock lock bot added the outdated label Oct 4, 2019
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