meta/flow v0.189.0

on GitHub

Likely to cause new Flow errors:

• enforce_local_inference_annotations is now on by default. To migrate your codebase run the following codemod to add the required annotations: flow codemod annotate-lti. More details on the changes are explained in the Requiring More Annotations to Functions and Classes in Flow blog post.

New Features:

• Class members can be suggested by autocomplete even if this is not typed explicitly.

Notable bug fixes:

• We will now consistently emit object-this-reference errors. Previously these errors were missing when the object is an argument of Object.freeze(), Object.defineProperties() or Object.create().
• Fix crash when walking directories that can't be accessed.
• Fixed a potential crash when two type identifiers are declared in the same block.

Library Definitions:

• Improve fs.readFile type definition when the encoding config option is supplied.