Files
test-repo/tests/flow/call_caching1/test2.js
T
Simon Lydell dc93bdc983 Sync the Flow tests (#1163)
* Extract custom tests from tests/flow/

Approach:

1. Remove all .js files in tests/flow except .snap.js files.
2. Copy over all .js files from tests/ in the flow repo.
3. Go through the diff looking for deletions.
   - It was easy to see which deletions were due to changes in the tests
     due to updates in the flow repo.
   - For the rest of the deletions, I used `git blame` to verify that
     they had been added by us since the flow tests were copied over.

This makes tests/flow/ simply a copy of the tests from the flow repo,
making it easier to sync with the upstream flow tests in the future.

* Add a script for syncing the flow tests

* Sync the flow tests
2017-04-08 07:52:38 -07:00

19 lines
325 B
JavaScript

/* @flow */
declare class Bar<K> {
update<K_>(updater: (value: this) => Bar<K_>): Bar<K_>;
}
declare function foo<U>(
initialValue: U,
callbackfn: (previousValue: U) => U
): U;
declare var items: Bar<string>;
declare var updater: (value: Bar<string>) => Bar<string>;
foo(
items,
(acc) => acc.update(updater)
);