Commit Graph

6 Commits

Author SHA1 Message Date
George Zahariev f392ba6725 Codemod {...null} to {} in xplat/js
Summary:
Now that [exact_empty_objects has been enabled](https://fb.workplace.com/groups/flowlang/posts/1092665251339137), we can codemod `{...null}` to `{}` - they are now equivalent.

1) Run my one-off jscodeshift codemod
2) `scripts/flow/tool update-suppressions .` (as some suppressions move around due to the change)

drop-conflicts

Reviewed By: bradzacher

Differential Revision: D37834078

fbshipit-source-id: 6bf4913910e5597e5dd9d5161cd35deece6a7581
2022-07-14 17:00:28 -07:00
George Zahariev 20d9d3aa6a Fixes to non-product code (e.g React Native)
Summary:
We are working on making the empty object literal `{}` have the type `{}` - i.e. exact empty object - rather than being unsealed.

Some manual fixes, in particular to React Native code, which is used and can be synced to other repos (e.g. WWW).

With these changes, error diff in Xplat is down to ~1990 errors

Note that after I roll out `exact_empty_objects`, I'll codemod all the `{...null}` (the only way to get an exact empty object currently) back to `{}`

Changelog: [Internal]

Reviewed By: SamChou19815

Differential Revision: D36142838

fbshipit-source-id: 054caf370db230f42a4c5f5706c88979ef246537
2022-05-04 16:13:07 -07:00
Andres Suarez 8bd3edec88 Update copyright headers from Facebook to Meta
Reviewed By: aaronabramov

Differential Revision: D33367752

fbshipit-source-id: 4ce94d184485e5ee0a62cf67ad2d3ba16e285c8f
2021-12-30 15:11:21 -08:00
Tim Yung 77ecc7ede1 JS: Format with Prettier v2.4.1 [3/n]
Summary:
Changelog:
[General][Internal]

Reviewed By: zertosh

Differential Revision: D31883447

fbshipit-source-id: cbbf85e4bf935096d242336f41bf0cc5d6f92359
2021-11-02 22:14:16 -07:00
Rubén Norte 4409642811 Migrate large amount of modules to flow strict and strict-local
Summary:
| Group | Before | After | Change |
| Untyped | 50 | 49 | -1 |
| flow | 197 | 155 | -42 |
| flow strict-local | 226 | 185 | -41 |
| flow strict | 33 | 117 | +84

Changelog: [Changed] Improved Flow typing of multiple modules (with migrations to `flow strict` and `flow strict-local`

Reviewed By: motiz88

Differential Revision: D22549140

fbshipit-source-id: ed29415332cfce15b244ee4dea9e13d035543175
2020-07-22 09:46:16 -07:00
Emilis Baliukonis 232517a574 Implement nativePerformanceNow to improve Profiler API results (#27885)
Summary:
When experimenting with React Profiler API (https://reactjs.org/docs/profiler.html), I noticed that durations are integers without a debugger, but they are doubles with higher precision when debugger is attached. After digging into React Profiler code, I found out that it's using `performance.now()` to accumulate execution times of individual units of work. Since this method does not exist in React Native, it falls back to Javascript `Date`, leading to imprecise results.

This PR introduces `global.nativePerformanceNow` function which returns precise native time, and a very basic `performance` polyfill with `now` function.

This will greatly improve React Profiler API results, which is essential for profiling and benchmark tools.

Solves https://github.com/facebook/react-native/issues/27274

## Changelog

[General] [Added] - Implement `nativePerformanceNow` and `performance.now()`
Pull Request resolved: https://github.com/facebook/react-native/pull/27885

Test Plan:
```
const initialTime = global.performance.now();
setTimeout(() => {
  const newTime = global.performance.now();
  console.warn('duration', newTime - initialTime);
}, 1000);
```

### Android + Hermes

![Screenshot_1580198068](https://user-images.githubusercontent.com/13116854/73245757-af0d6c80-41b5-11ea-8130-dde14ebd41a3.png)

### Android + JSC

![Screenshot_1580199089](https://user-images.githubusercontent.com/13116854/73246157-92256900-41b6-11ea-87a6-ac222383200c.png)

### iOS

![Simulator Screen Shot - iPhone 8 - 2020-01-28 at 10 06 49](https://user-images.githubusercontent.com/13116854/73245871-f136ae00-41b5-11ea-9e31-b1eff5717e62.png)

Reviewed By: ejanzer

Differential Revision: D19888289

Pulled By: rickhanlonii

fbshipit-source-id: ab8152382da9aee9b4b3c76f096e45d40f55da6c
2020-03-31 10:23:51 -07:00