facebook/flow v0.140.0

on GitHub

Likely to cause new Flow errors:

• New generic type checking is now enabled by default, and has to be explicitly disabled with generate_tests=true in a flowconfig if desired. See https://medium.com/flow-type/flows-improved-handling-of-generic-types-b5909cc5e3c5 for more about Flow's new handling of generic types.

Notable bug fixes:

• Fixed "Could not locate flowlib files" errors when multiple users run Flow on the same machine
• Fixed autocomplete and hover for imported enum types
• Fixed autocomplete suggesting types in value positions
• Fixed a bug where correct non-boolean predicate functions were rejected

Parser:

• ESTree AST now uses Literal node for init of boolean enum members

Misc:

• Updated ShadowRoot library definition (thanks @Brianzchen)