facebook/flow v0.183.0

on GitHub

Likely to cause new Flow errors:

• We now emit new errors in places where an object literal has literal types, but doesn't have an annotation. You can usually fix these errors by adding annotations to object literals.

New Features:

• Allow export of empty object without annotation when exact_empty_objects is enabled.
• Improve annotate useState codemod to support null/undefined/empty-array arguments.

Notable bug fixes:

• Allow flowconfigs with blank lines before the first config section.
• Fix location of error message about legacy octal number types.
• Fix inconsistent blank lines around auto-imports.
• Fix bug where Watchman events might be ignored on Windows.

Parser:

• Fix parser exception on negative binary and octal number types that contain whitespace after the minus sign.

Library Definitions:

• Improved fs.readdir and fs.readdirSync to allow better overload resolution.
• Add String.prototype.replaceAll() (Thanks @dav-s).