Shortcut for the common case where only a single flag is checked. Same
as `gate(flags => flags.enableFeatureFlag)`.
Normally I don't care about these types of conveniences but I'm about to
add a lot more inline flag checks these all over our tests and it gets
noisy. This helps a bit.
This ensures that we can keep overriding what runtime to use by
resetting modules while still using the automatic JSX plugin. This is
like the "inline requires" transform but just for JSX.
I got sick of trying to figure out workarounds to hide the extra stack
frame that appears due to the wrappers.
Component stacks have a similar problem to the problem with keyPath
where we had to move it down and set it late right before recursing.
Currently we work around that by popping exactly one off when something
suspends. That doesn't work with the new server stacks being added which
are more than one. It also meant that we kept having add a single frame
that could be popped when there shouldn't need to be one.
Unlike keyPath component stacks has this weird property that once
something throws we might need the stack that was attempted for errors
or the previous stack if we're going to retry and just recreate it.
I've tried a few different approaches and I didn't like either but this
is the one that seems least problematic.
I first split out renderNodeDestructive into a retryNode helper. During
retries only retryNode is called. When we first discover a node, we pass
through renderNodeDestructive.
Instead of add a component stack frame deep inside renderNodeDestructive
after we've already refined a node, we now add it before in
renderNodeDestructive. That way it's only added once before being
attempted. This is similar to how Fiber works where in ChildFiber we
match the node once to create the instance and then later do we attempt
to actually render it and it's only the second part that's ever retried.
This unfortunately means that we now have to refine the node down to
element/lazy/thenables twice. To avoid refining the type too I move that
to be done lazily.
## Overview
Updates `eslint-plugin-jest` and enables the recommended rules with some
turned off that are unhelpful.
The main motivations is:
a) we have a few duplicated tests, which this found an I deleted
b) making sure we don't accidentally commit skipped tests
We previously only included the component stack.
Cleaned up the fields in Fizz server that wasn't using consistent hidden
classes in dev vs prod.
Added a prefix to errors serialized from server rendering. It can be a
bit confusing to see where this error came from otherwise since it
didn't come from elsewhere on the client. It's really kind of confusing
with other recoverable errors that happen on the client too.
If a global error event is dispatched during a test, Jest reports that
test as a failure.
Our `@gate` pragma feature should account for this — if the gate
condition is false, and the global error event is dispatched, then the
test should be reported as a success.
The solution is to install an error event handler right before invoking
the test function. Because we install our own handler, Jest will not
report the test as a failure if a global error event is dispatched; it's
conceptually as if we wrapped the whole test event in a try-catch.
Suppose that you have this setup for devtools test:
```
// @reactVersion <= 18.1
// @reactVersion >= 17.1
```
With previous implementation, the accumulated condition will be `"<=
18.1" && ">= 17.1"`, which is just `">= 17.1"`, when evaluated. That's
why we executed some tests for old versions of react on main (and
failed).
With these changes the resulting condition will be `"<= 18.1 >= 17.1"`,
not using `&&`, because semver does not support this operator. All
currently failing tests will be skipped now as expected.
Also increased timeout value for shell server to start
## Summary
Running `yarn test --project devtools --build` currently skips all
non-gated (without `@reactVersion` directives) devtools tests. This is
not expected behaviour, these changes are fixing it.
There were multiple related PRs to it:
- https://github.com/facebook/react/pull/26742
- https://github.com/facebook/react/pull/25712
- https://github.com/facebook/react/pull/24555
With these changes, the resulting behaviour will be:
- If `REACT_VERSION` env variable is specified:
- jest will not include all non-gated test cases in the test run
- jest will run only a specific test case, when specified
`REACT_VERSION` value satisfies the range defined by `@reactVersion`
directives for this test case
- If `REACT_VERSION` env variable is not specified, jest will run all
non-gated tests:
- jest will include all non-gated test cases in the test run
- jest will run all non-gated test cases, the only skipped test cases
will be those, which specified the range that does not include the next
stable version of react, which will be imported from `ReactVersions.js`
## How did you test this change?
Running `profilingCache` test suite without specifying `reactVersion`
now skips gated (>= 17 & < 18) test
<img width="1447" alt="Screenshot 2023-06-15 at 11 18 22"
src="https://github.com/facebook/react/assets/28902667/cad58994-2cb3-44b3-9eb2-1699c01a1eb3">
Running `profilingCache` test suite with specifying `reactVersion` to
`17` now runs this test case and skips others correctly
<img width="1447" alt="Screenshot 2023-06-15 at 11 20 11"
src="https://github.com/facebook/react/assets/28902667/d308960a-c172-4422-ba6f-9c0dbcd6f7d5">
Running `yarn test --project devtools ...` without specifying
`reactVersion` now runs all non-gated test cases
<img width="398" alt="Screenshot 2023-06-15 at 12 25 12"
src="https://github.com/facebook/react/assets/28902667/2b329634-0efd-4c4c-b460-889696bbc9e1">
Running `yarn test --project devtools ...` with specifying
`reactVersion` (to `17` in this example) now includes only gated tests
<img width="414" alt="Screenshot 2023-06-15 at 12 26 31"
src="https://github.com/facebook/react/assets/28902667/a702c27e-4c35-4b12-834c-e5bb06728997">
- substr is Annex B
- substring silently flips its arguments if they're in the "wrong order", which is confusing
- slice is better than sliced bread (no pun intended) and also it works the same way on Arrays so there's less to remember
---
> I'd be down to just lint and enforce a single form just for the potential compression savings by using a repeated string.
_Originally posted by @sebmarkbage in https://github.com/facebook/react/pull/26663#discussion_r1170455401_
The old version of prettier we were using didn't support the Flow syntax
to access properties in a type using `SomeType['prop']`. This updates
`prettier` and `rollup-plugin-prettier` to the latest versions.
I added the prettier config `arrowParens: "avoid"` to reduce the diff
size as the default has changed in Prettier 2.0. The largest amount of
changes comes from function expressions now having a space. This doesn't
have an option to preserve the old behavior, so we have to update this.
Flow introduced a new syntax to annotated the context type of a
function, this tries to update the rest and add 1 example usage.
- 2b1fb91a55 already added the changes
required for eslint.
- Jest transform is updated to use the recommended `hermes-parser` which
can parse current and Flow syntax and will be updated in the future.
- Rollup uses a new plugin to strip the flow types. This isn't ideal as
the npm module is deprecated in favor of using `hermes-parser`, but I
couldn't figure out how to integrate that with Rollup.
* Facebook -> Meta in copyright
rg --files | xargs sed -i 's#Copyright (c) Facebook, Inc. and its affiliates.#Copyright (c) Meta Platforms, Inc. and affiliates.#g'
* Manual tweaks
In DevTools tests, if the REACT_VERSION specified, we know this is a regression test (testing older React Versions). Because a lot of tests test the DevTools front end and we don't want to run them in the regression test scenario, we decided to only run tests that have the // @reactVersion pragma defined.
Because if there are no tests specified, jest will fail, we also opt to use jest.skip to skip all the tests that we don't want to run for a specific React version istead.
This PR makes this change.
This PR:
Adds a transform-react-version-pragma that transforms // @reactVersion SEMVER_VERSION into _test_react_version(...) and _test_react_version_focus(...) that lets us only run a test if it satisfies the right react version.
Adds _test_react_version and _test_react_version_focus to the devtools setupEnv file
Add a devtools preprocessor file for devtools specific plugins
The problem in scripts\babel\transform-object-assign.js is that file path separator has '/' and '\' between Linux, MacOS and Windows, which causes yarn build error. See https://github.com/facebook/react/issues/24103
* Remove object-assign polyfill
We really rely on a more modern environment where this is typically
polyfilled anyway and we don't officially support IE with more extensive
polyfilling anyway. So all environments should have the native version
by now.
* Use shared/assign instead of Object.assign in code
This is so that we have one cached local instance in the bundle.
Ideally we should have a compile do this for us but we already follow
this pattern with hasOwnProperty, isArray, Object.is etc.
* Transform Object.assign to now use shared/assign
We need this to use the shared instance when Object.spread is used.
* Add pragma for feature testing: @gate
The `@gate` pragma declares under which conditions a test is expected to
pass.
If the gate condition passes, then the test runs normally (same as if
there were no pragma).
If the conditional fails, then the test runs and is *expected to fail*.
An alternative to `it.experimental` and similar proposals.
Examples
--------
Basic:
```js
// @gate enableBlocksAPI
test('passes only if Blocks API is available', () => {/*...*/})
```
Negation:
```js
// @gate !disableLegacyContext
test('depends on a deprecated feature', () => {/*...*/})
```
Multiple flags:
```js
// @gate enableNewReconciler
// @gate experimental
test('needs both useEvent and Blocks', () => {/*...*/})
```
Logical operators (yes, I'm sorry):
```js
// @gate experimental && (enableNewReconciler || disableSchedulerTimeoutBasedOnReactExpirationTime)
test('concurrent mode, doesn\'t work in old fork unless Scheduler timeout flag is disabled', () => {/*...*/})
```
Strings, and comparion operators
No use case yet but I figure eventually we'd use this to gate on
different release channels:
```js
// @gate channel === "experimental" || channel === "modern"
test('works in OSS experimental or www modern', () => {/*...*/})
```
How does it work?
I'm guessing those last two examples might be controversial. Supporting
those cases did require implementing a mini-parser.
The output of the transform is very straightforward, though.
Input:
```js
// @gate a && (b || c)
test('some test', () => {/*...*/})
```
Output:
```js
_test_gate(ctx => ctx.a && (ctx.b || ctx.c, 'some test'), () => {/*...*/});
```
It also works with `it`, `it.only`, and `fit`. It leaves `it.skip` and
`xit` alone because those tests are disabled anyway.
`_test_gate` is a global method that I set up in our Jest config. It
works about the same as the existing `it.experimental` helper.
The context (`ctx`) argument is whatever we want it to be. I set it up
so that it throws if you try to access a flag that doesn't exist. I also
added some shortcuts for common gating conditions, like `old`
and `new`:
```js
// @gate experimental
test('experimental feature', () => {/*...*/})
// @gate new
test('only passes in new reconciler', () => {/*...*/})
```
Why implement this as a pragma instead of a runtime API?
- Doesn't require monkey patching built-in Jest methods. Instead it
compiles to a runtime function that composes Jest's API.
- Will be easy to upgrade if Jest ever overhauls their API or we switch
to a different testing framework (unlikely but who knows).
- It feels lightweight so hopefully people won't feel gross using it.
For example, adding or removing a gate pragma will never affect the
indentation of the test, unlike if you wrapped the test in a
conditional block.
* Compatibility with console error/warning tracking
We patch console.error and console.warning to track unexpected calls
in our tests. If there's an unexpected call, we usually throw inside
an `afterEach` hook. However, that's too late for tests that we
expect to fail, because our `_test_gate` runtime can't capture the
error. So I also check for unexpected calls inside `_test_gate`.
* Move test flags to dedicated file
Added some instructions for how the flags are set up and how to
use them.
* Add dynamic version of gate API
Receives same flags as the pragma.
If we ever decide to revert the pragma, we can codemod them to use
this instead.
* Check in a forked version of object-assign
This one uses ES modules so that we can inline it into UMD builds.
We could wait for object-assign to make an ESM export but we're going to
remove this dependency and assume global polyfills in the next version
anyway. However, we'd have to figure out how to keep the copyright header
and it'll get counted in terms of byte size (even if other tooling removes
it).
A lot of headache when we have our own implementation anyway. So I'll just
use that.
Ours is not resilient to checking certain browser bugs but those browsers
are mostly unused anyway. (Even FB breaks on them presumably.)
We also don't need to be resilient to Symbols since the way React uses it
we shouldn't need to copy symbols
* Don't transpile Object.assign to object-assign in object-assign
The polyfill needs to be able to feature detect Object.assign.
* Replace all warning/lowPriWarning with console calls
* Replace console.warn/error with a custom wrapper at build time
* Fail the build for console.error/warn() where we can't read the stack
* prep for codemod
* prep warnings
* rename lint rules
* codemod for ifs
* shim www functions
* Handle more cases in the transform
* Thanks De Morgan
* Run the codemod
* Delete the transform
* Fix up confusing conditions manually
* Fix up www shims to match expected API
* Also check for low-pri warning in the lint rule
* Replace Babel plugin with an ESLint plugin
* Fix ESLint rule violations
* Move shared conditions higher
* Test formatting nits
* Tweak ESLint rule
* Bugfix: inside else branch, 'if' tests are not satisfactory
* Use a stricter check for exactly if (__DEV__)
This makes it easier to see what's going on and matches dominant style in the codebase.
* Fix remaining files after stricter check
If a Scheduler profile runs without stopping, the event log will grow
unbounded. Eventually it will run out of memory and the VM will throw
an error.
To prevent this from happening, let's automatically stop the profiler
once the log exceeds a certain limit. We'll also print a warning with
advice to call `stopLoggingProfilingEvents` explicitly.
Upgraded from Babel 6 to Babel 7.
The only significant change seems to be the way `@babel/plugin-transform-classes` handles classes differently from `babel-plugin-transform-es2015-classes`. In regular mode, the former injects a `_createClass` function that increases the bundle size, and in the latter it removes the safeguard checks. However, this is okay because we don't all classes in new features, and we want to deprecate class usage in the future in the react repo.
Co-authored-by: Luna Ruan <luna@fb.com>
Co-authored-by: Abdul Rauf <abdulraufmujahid@gmail.com>
Co-authored-by: Maksim Markelov <maks-markel@mail.ru>
* Use %s in the console calls
* Add shared/warningWithStack
* Convert some warning callsites to warningWithStack
* Use warningInStack in shared utilities and remove unnecessary checks
* Replace more warning() calls with warningWithStack()
* Fixes after rebase + use warningWithStack in react
* Make warning have stack by default; warningWithoutStack opts out
* Forbid builds that may not use internals
* Revert newly added stacks
I changed my mind and want to keep this PR without functional changes. So we won't "fix" any warnings that are already missing stacks. We'll do it in follow-ups instead.
* Fix silly find/replace mistake
* Reorder imports
* Add protection against warning argument count mismatches
* Address review
* use different eslint config for es6 and es5
* remove confusing eslint/baseConfig.js & add more eslint setting for es5, es6
* more clear way to run eslint on es5 & es6 file
* seperate ESNext, ES6, ES6 path, and use different lint config
* rename eslint config file & update eslint rules
* Undo yarn.lock changes
* Rename a file
* Remove unnecessary exceptions
* Refactor a little bit
* Refactor and tweak the logic
* Minor issues
* Add a test-only transform to catch infinite loops
* Only track iteration count, not time
This makes the detection dramatically faster, and is okay in our case because we don't have tests that iterate so much.
* Use clearer naming
* Set different limits for tests
* Fail tests with infinite loops even if the error was caught
* Add a test
* Update transforms to handle ES modules
* Update Jest to handle ES modules
* Convert react package to ES modules
* Convert react-art package to ES Modules
* Convert react-call-return package to ES Modules
* Convert react-test-renderer package to ES Modules
* Convert react-cs-renderer package to ES Modules
* Convert react-rt-renderer package to ES Modules
* Convert react-noop-renderer package to ES Modules
* Convert react-dom/server to ES modules
* Convert react-dom/{client,events,test-utils} to ES modules
* Convert react-dom/shared to ES modules
* Convert react-native-renderer to ES modules
* Convert react-reconciler to ES modules
* Convert events to ES modules
* Convert shared to ES modules
* Remove CommonJS support from transforms
* Move ReactDOMFB entry point code into react-dom/src
This is clearer because we can use ES imports in it.
* Fix Rollup shim configuration to work with ESM
* Fix incorrect comment
* Exclude external imports without side effects
* Fix ReactDOM FB build
* Remove TODOs I don’t intend to fix yet
Did find and replace in TextMate.
```
find: (?:( \*)( ))?Copyright (?:\(c\) )?(\d{4})\b.+Facebook[\s\S]+(?:this source tree|the same directory)\.$
replace: $1$2Copyright (c) $3-present, Facebook, Inc.\n$1\n$1$2This source code is licensed under the MIT license found in the\n$1$2LICENSE file in the root directory of this source tree.
```
* WIP
* fbjs support
* WIP
* dev/prod mode WIP
* More WIP
* builds a cjs bundle
* adding forwarding modules
* more progress on forwarding modules and FB config
* improved how certain modules get inlined for fb and cjs
* more forwarding modules
* added comments to the module aliasing code
* made ReactPerf and ReactTestUtils bundle again
* Use -core suffix for all bundles
This makes it easier to override things in www.
* Add a lazy shim for ReactPerf
This prevents a circular dependency between ReactGKJSModule and ReactDOM
* Fix forwarding module for ReactCurrentOwner
* Revert "Add a lazy shim for ReactPerf"
This reverts commit 723b402c07116a70ce8ff1e43a1f4d92052e8f43.
* Rename -core suffix to -fb for clarity
* Change forwarding modules to import from -fb
This is another, more direct fix for ReactPerf circular dependency
* should fix fb and cjs bundles for ReactCurrentOwner
* added provides module for ReactCurrentOwner
* should improve console output
* fixed typo with argument passing on functon call
* Revert "should improve console output"
This breaks the FB bundles.
This reverts commit 65f11ee64f678c387cb3cfef9a8b28b89a6272b9.
* Work around internal FB transform require() issue
* moved ReactInstanceMap out of React and into ReactDOM and ReactDOMFiber
* Expose more internal modules to www
* Add missing modules to Stack ReactDOM to fix UFI
* Fix onlyChild module
* improved the build tool
* Add a rollup npm script
* Rename ReactDOM-fb to ReactDOMStack-fb
* Fix circular dependencies now that ReactDOM-fb is a GK switch
* Revert "Work around internal FB transform require() issue"
This reverts commit 0a50b6a90bffc59f8f5416ef36000b5e3a44d253.
* Bump rollup-plugin-commonjs to include a fix for rollup/rollup-plugin-commonjs#176
* Add more forwarding modules that are used on www
* Add even more forwarding modules that are used on www
* Add DOMProperty to hidden exports
* Externalize feature flags
This lets www specify them dynamically.
* Remove forwarding modules with implementations
Instead I'm adding them to react-fb in my diff.
* Add all injection necessary for error logging
* Add missing forwarding module (oops)
* Add ReactART builds
* Add ReactDOMServer bundle
* Fix UMD build of ReactDOMFiber
* Work in progress: start adding ReactNative bundle
* tidied up the options for bundles, so they can define what types they output and exclude
* Add a working RN build
* further improved and tidied up build process
* improved how bundles are built by exposing externals and making the process less "magical", also tidied up code and added more comments
* better handling of bundling ReactCurrentOwner and accessing it from renderer modules
* added NODE_DEV and NODE_PROD
* added NPM package creation and copying into build chain
* Improved UMD bundles, added better fixture testing and doc plus prod builds
* updated internal modules (WIP)
* removed all react/lib/* dependencies from appearing in bundles created on build
* added react-test-renderer bundles
* renamed bundles and paths
* fixed fixture path changes
* added extract-errors support
* added extractErrors warning
* moved shims to shims directory in rollup scripts
* changed pathing to use build rather than build/rollup
* updated release doc to reflect some rollup changes
* Updated ReactNative findNodeHandle() to handle number case (#9238)
* Add dynamic injection to ReactErrorUtils (#9246)
* Fix ReactErrorUtils injection (#9247)
* Fix Haste name
* Move files around
* More descriptive filenames
* Add missing ReactErrorUtils shim
* Tweak reactComponentExpect to make it standalone-ish in www
* Unflowify shims
* facebook-www shims now get copied over correctly to build
* removed unnecessary resolve
* building facebook-www/build is now all sync to prevent IO issues plus handles extra facebook-www src assets
* removed react-native-renderer package and made build make a react-native build dir instead
* 😭😭😭
* Add more SSR unit tests for elements and children. (#9221)
* Adding more SSR unit tests for elements and children.
* Some of my SSR tests were testing for react-text and react-empty elements that no longer exist in Fiber. Fixed the tests so that they expect correct markup in Fiber.
* Tweaked some test names after @gaearon review comment https://github.com/facebook/react/pull/9221#discussion_r107045673 . Also realized that one of the tests was essentially a direct copy of another, so deleted it.
* Responding to code review https://github.com/facebook/react/pull/9221#pullrequestreview-28996315 . Thanks @spicyj!
* ReactElementValidator uses temporary ReactNative View propTypes getter (#9256)
* Updating packages for 16.0.0-alpha.6 release
* Revert "😭😭😭"
This reverts commit 7dba33b2cfc67246881f6d57633a80e628ea05ec.
* Work around Jest issue with CurrentOwner shared state in www
* updated error codes
* splits FB into FB_DEV and FB_PROD
* Remove deps on specific builds from shims
* should no longer mangle FB_PROD output
* Added init() dev block to ReactTestUtils
* added shims for DEV only code so it does not get included in prod bundles
* added a __DEV__ wrapping code to FB_DEV
* added __DEV__ flag behind a footer/header
* Use right haste names
* keeps comments in prod
* added external babel helpers plugin
* fixed fixtures and updated cjs/umd paths
* Fixes Jest so it run tests correctly
* fixed an issue with stubbed modules not properly being replaced due to greedy replacement
* added a WIP solution for ReactCurrentOwner on FB DEV
* adds a FB_TEST bundle
* allows both ReactCurrentOwner and react/lib/ReactCurrentOwner
* adds -test to provides module name
* Remove TEST env
* Ensure requires stay at the top
* added basic mangle support (disbaled by default)
* per bundle property mangling added
* moved around plugin order to try and fix deadcode requires as per https://github.com/rollup/rollup/issues/855
* Fix flow issues
* removed gulp and grunt and moved tasks to standalone node script
* configured circleci to use new paths
* Fix lint
* removed gulp-extract-errors
* added test_build.sh back in
* added missing newline to flow.js
* fixed test coverage command
* changed permissions on test_build.sh
* fixed test_html_generations.sh
* temp removed html render test
* removed the warning output from test_build, the build should do this instead
* fixed test_build
* fixed broken npm script
* Remove unused ViewportMetrics shim
* better error output
* updated circleci to node 7 for async/await
* Fixes
* removed coverage test from circleci run
* circleci run tets
* removed build from circlci
* made a dedicated jest script in a new process
* moved order around of circlci tasks
* changing path to jest in more circleci tests
* re-enabled code coverage
* Add file header to prod bundles
* Remove react-dom/server.js (WIP: decide on the plan)
* Only UMD bundles need version header
* Merge with master
* disabled const evaluation by uglify for <script></script> string literal
* deal with ART modules for UMD bundles
* improved how bundle output gets printed
* fixed filesize difference reporting
* added filesize dep
* Update yarn lockfile for some reason
* now compares against the last run branch built on
* added react-dom-server
* removed un-needed comment
* results only get saved on full builds
* moved the rollup sized plugin into a plugins directory
* added a missing commonjs()
* fixed missing ignore
* Hack around to fix RN bundle
* Partially fix RN bundles
* added react-art bundle and a fixture for it
* Point UMD bundle to Fiber and add EventPluginHub to exported internals
* Make it build on Node 4
* fixed eslint error with resolve being defined in outer scope
* Tweak how build results are calculated and stored
* Tweak fixtures build to work on Node 4
* Include LICENSE/PATENTS and fix up package.json files
* Add Node bundle for react-test-renderer
* Revert "Hack around to fix RN bundle"
We'll do this later.
This reverts commit 59445a625962d7be4c7c3e98defc8a31f8761ec1.
* Revert more RN changes
We'll do them separately later
* Revert more unintentional changes
* Revert changes to error codes
* Add accidentally deleted RN externals
* added RN_DEV/RN_PROD bundles
* fixed typo where RN_DEV and RN_PROD were the wrong way around
* Delete/ignore fixture build outputs
* Format scripts/ with Prettier
* tidied up the Rollup build process and split functions into various different files to improve readability
* Copy folder before files
* updated yarn.lock
* updated results and yarn dependencies to the latest versions
