esturcke / immer-flow-bug

Flow failing to find shipped type definitions

🐛 Bug Report

Flow does not seem to be finding the shipped flow type definitions after upgrading to v6. I can get flow to find the type definitions by running:

cp node_modules/immer/dist/{immer,index}.js.flow

Link to repro

https://github.com/esturcke/immer-flow-bug

To Reproduce

1. Run flow

   yarn flow
   

Observed behavior

Warning ┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈┈ src/App.js:3:8

Importing from an untyped module makes it any and is not safe! Did you mean to add // @flow to the top of immer?
(untyped-import)

     1│ // @flow
     2│ import React from "react";
     3│ import produce from "immer";
     4│ import logo from "./logo.svg";
     5│ import "./App.css";
     6│



Found 1 warning
✨  Done in 4.57s.

Expected behavior

No flow warnings.

Environment

• Immer version: 6.0.2