meta/flow v0.185.0

on GitHub

Likely to cause new Flow errors:

• Unbound names in jsx-pragma when the jsx-pragma is not a simple identifier will now consistently point to the jsx pragma.
• Errors previously hidden by method-unbinding will reappear.
• Fix a bug that makes assignments in loop guards like x = some expression containing x have a type that's effectively any. If you turned on inference_mode=constrain_writes since the last release, there will be new errors.
• Remove esproposal_export_star_as as an option and make this the default as it made it into the JS standard in 2018.
• Additional value-as-type errors might be emitted, as a result of existing importing errors.
• Object rest on instances no longer results in an unsealed object (that can have properties added after the fact)

New Features:

• inference_mode=constrain_writes will be the default. inference_mode=classic, which is the current default, will be removed in the next release. Please refer to the blog post for migration paths.

Misc:

• Fix flow-remove-types/jest transformer to be compatible with Jest 28. (Thanks @carloscuesta)
• Add codemod to remove annotations in destructuring - which we banned in 0.176

Library Definitions:

• Add missing .x and .y properties to DOMRect. (Thanks @pmer)