Now that the compiler lint rule is merged into eslint-plugin-react-hooks, we also need to update our caches so compiler dependencies are also cached. This should fix the CI walltime regression we are now seeing.
Now that the compiler lint rule is merged into eslint-plugin-react-hooks, we also need to update our caches so compiler dependencies are also cached. This should fix the CI walltime regression we are now seeing.
Now that the compiler lint rule is merged into eslint-plugin-react-hooks, we also need to update our caches so compiler dependencies are also cached. This should fix the CI walltime regression we are now seeing.
Now that the compiler lint rule is merged into eslint-plugin-react-hooks, we also need to update our caches so compiler dependencies are also cached. This should fix the CI walltime regression we are now seeing.
Reduce false positive bailouts by using the same
`isReferencedIdentifier` logic that the compiler also uses for
determining context variables and a function's own hoisted declarations.
Details:
Previously, we counted every babel identifier as a reference. This is
problematic because babel counts most string symbols as an identifier.
```js
print(x); // x is an identifier as expected
obj.x // x is.. also an identifier here
{x: 2} // x is also an identifier here
```
This PR adds a check for `isReferencedIdentifier`. Note that only
non-lval
references pass this check. This should be fine as we don't need to
hoist function declarations before writes to the same lvalue (which
should error in strict mode anyways)
```js
print(x); // isReferencedIdentifier(x) -> true
obj.x // isReferencedIdentifier(x) -> false
{x: 2} // isReferencedIdentifier(x) -> false
x = 2 // isReferencedIdentifier(x) -> false
```
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32596).
* __->__ #32596
* #32595
* #32594
* #32593
* #32522
* #32521
- Add `at`, `indexOf`, and `includes`
- Optimize MixedReadOnly which is currently only used by hook return
values. Hook return values are typed as Frozen, this change propagates
that to return values of aliasing function calls (such as `at`). One
potential issue is that developers may pass
`enableAssumeHooksFollowRulesOfReact:false` and set
`transitiveMixedData`, expecting their transitive mixed data to be
mutable. This is a bit of an edge case and already doesn't have clear
semantics.
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32594).
* #32596
* #32595
* __->__ #32594
* #32593
* #32522
* #32521
Expand type inference to infer mixedReadOnly types for numeric and
computed property accesses.
```js
function Component({idx})
const data = useFragment(...)
// we want to type `posts` correctly as Array
const posts = data.viewers[idx].posts.slice(0, 5);
// ...
}
```
---
[//]: # (BEGIN SAPLING FOOTER)
Stack created with [Sapling](https://sapling-scm.com). Best reviewed
with [ReviewStack](https://reviewstack.dev/facebook/react/pull/32593).
* #32596
* #32595
* #32594
* __->__ #32593
* #32522
* #32521
## Summary
Right now, `react-compiler-healthcheck` flags `mobx` as a "known
incompatible library". But it's not precisely *MobX* that's
incompatible. It's the observer HOC that comes from `mobx-react` and
`mobx-react-lite`.
I've been working on
[mst-use-observable](https://github.com/coolsoftwaretyler/mst-use-observable),
which makes MobX-State-Tree compatible with the compiler. However,
projects that use `mobx-state-tree` and `mst-use-observable` will still
depend on `mobx` as a dependency.
And there [have been efforts in the past to write a hook for
observability](https://github.com/mobxjs/mobx/discussions/2566). So it's
possible that MobX could become compatible, so long as authors access it
with a hook, rather than the HOC.
I would like to propose updating the health check to be a little more
precise and flag the HOC dependencies, rather than MobX itself.
Thanks in advance for your consideration!
## How did you test this change?
`npx react-compiler-healthcheck` shouldn't flag on `mobx` in
dependencies, but will for `mobx-react-lite` and `mobx-react`.
Test suites, formatting, linting, all passed.
---------
Co-authored-by: lauren <poteto@users.noreply.github.com>
fix: update CONTRIBUTING.md link path
Updated the relative path to CONTRIBUTING.md from `../CONTRIBUTING.md`
to `./../../CONTRIBUTING.md` to ensure the correct file is referenced.
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This change merges the `react-compiler` rule from
`eslint-plugin-react-compiler` into the `eslint-plugin-react-hooks`
plugin. In order to do the move in a way that keeps commit history with
the moved files, but also no remove them from their origin until a
future cleanup change can be done, I did the `git mv` first, and then
recreated the files that were moved in their original places, as a
separate commit. Unfortunately GH shows the moved files as new instead
of the ones that are truly new. But in the IDE and `git blame`, commit
history is intact with the moved files.
Since this change adds new dependencies, and one of those dependencies
has a higher `engines` declaration for `node` than what the plugin
currently has, this is technically a breaking change and will have to go
out as part of a major release.
### Related Changes
- https://github.com/facebook/react/pull/32458
---------
Co-authored-by: Lauren Tan <poteto@users.noreply.github.com>
Extracting portions of #32416 for easier review.
Adds a new `prebuild` option to allow for a prebuild command to be run prior to building the bundle.
Co-authored-by: michael faith <michaelfaith@users.noreply.github.com>
Extracting portions of #32416 for easier review.
Fixes a small issue where `codeFrame` is not a function when a rollup error was encountered.
Co-authored-by: michael faith <michaelfaith@users.noreply.github.com>
Extracting portions of #32416 for easier review.
This PR lightly updates the build scripts for the eslint fixtures.
Co-authored-by: michael faith <michaelfaith@users.noreply.github.com>
Extracting portions of #32416 for easier review.
This PR updates our babel configs (only used in jest) to support classes.
Co-authored-by: michael faith <michaelfaith@users.noreply.github.com>
Extracting portions of #32416 for easier review.
Adds a new `prebuild` option to allow for a prebuild command to be run prior to building the bundle.
Co-authored-by: michael faith <michaelfaith@users.noreply.github.com>
Extracting portions of #32416 for easier review.
Fixes a small issue where `codeFrame` is not a function when a rollup error was encountered.
Co-authored-by: michael faith <michaelfaith@users.noreply.github.com>
Extracting portions of #32416 for easier review.
This PR lightly updates the build scripts for the eslint fixtures.
Co-authored-by: michael faith <michaelfaith@users.noreply.github.com>
Extracting portions of #32416 for easier review.
This PR updates our babel configs (only used in jest) to support classes.
Co-authored-by: michael faith <michaelfaith@users.noreply.github.com>
lauren
mofeiZ
Tyler Scott Williams
Mohhamad Hussain
michael faith