[pull] main from facebook:main

.editorconfig

@@ -8,11 +8,9 @@ indent_size = 2
 indent_style = space
 insert_final_newline = true
 max_line_length = 80
-trim_trailing_whitespace = true
 
 [*.md]
 max_line_length = 0
-trim_trailing_whitespace = false
 
 [COMMIT_EDITMSG]
 max_line_length = 0

.eslintrc.js

@@ -23,6 +23,7 @@ module.exports = {
     'babel',
     'ft-flow',
     'jest',
+    'es',
     'no-for-of-loops',
     'no-function-declare-after-return',
     'react',
@@ -47,7 +48,7 @@ module.exports = {
     'ft-flow/no-unused-expressions': ERROR,
     // 'ft-flow/no-weak-types': WARNING,
     // 'ft-flow/require-valid-file-annotation': ERROR,
-
+    'es/no-optional-chaining': ERROR,
     'no-cond-assign': OFF,
     'no-constant-condition': OFF,
     'no-control-regex': OFF,
@@ -435,6 +436,7 @@ module.exports = {
         'packages/react-dom/src/test-utils/*.js',
       ],
       rules: {
+        'es/no-optional-chaining': OFF,
         'react-internal/no-production-logging': OFF,
         'react-internal/warning-args': OFF,
         'react-internal/safe-string-coercion': [
@@ -490,11 +492,13 @@ module.exports = {
         'packages/react-devtools-extensions/**/*.js',
         'packages/react-devtools-shared/src/hook.js',
         'packages/react-devtools-shared/src/backend/console.js',
+        'packages/react-devtools-shared/src/backend/shared/DevToolsComponentStackFrame.js',
       ],
       globals: {
         __IS_CHROME__: 'readonly',
         __IS_FIREFOX__: 'readonly',
         __IS_EDGE__: 'readonly',
+        __IS_NATIVE__: 'readonly',
         __IS_INTERNAL_VERSION__: 'readonly',
       },
     },
@@ -565,6 +569,7 @@ module.exports = {
     React$Node: 'readonly',
     React$Portal: 'readonly',
     React$Ref: 'readonly',
+    React$RefSetter: 'readonly',
     ReadableStreamController: 'readonly',
     ReadableStreamReader: 'readonly',
     RequestInfo: 'readonly',

.git-blame-ignore-revs

@@ -1 +1,2 @@
 c998bb1ed4b3285398c9c7797135d3f060243c6a
+fd2b3e13d330a4559f5aa21462e1cb2cbbcf144b

.github/ISSUE_TEMPLATE/compiler_bug_report.yml

@@ -55,3 +55,10 @@ body:
       Please provide your React version in the app where this issue occurred.
   validations:
     required: true
+- type: input
+  attributes:
+    label: What version of React Compiler are you using?
+    description: |
+      Please provide the exact React Compiler version in the app where this issue occurred.
+  validations:
+    required: true

.github/dependabot.yml

@@ -1,107 +1,10 @@
 version: 2
 updates:
   - package-ecosystem: "npm"
-    directory: "/fixtures/art"
+    directories:
+      - "/fixtures/*"
     schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/attribute-behavior"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/concurrent"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/devtools"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/dom"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/eslint"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/expiration"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/fiber-debugger"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/fiber-triangle"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/fizz"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/fizz-ssr-browser"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/flight"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/flight-browser"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/flight-esm"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/legacy-jsx-runtimes"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/nesting"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/packaging"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/scheduler"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/ssr"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/ssr-2"
-    schedule:
-      interval: "weekly"
-    open-pull-requests-limit: 0
-  - package-ecosystem: "npm"
-    directory: "/fixtures/stacks"
-    schedule:
-      interval: "weekly"
+      interval: "monthly"
     open-pull-requests-limit: 0
+    ignore:
+      - dependency-name: "*"

.github/workflows/compiler_playground.yml

@@ -5,12 +5,21 @@ on:
     branches: [main]
   pull_request:
     paths:
-      - "compiler/**"
-      - .github/workflows/compiler-playground.yml
+      - compiler/**
+      - .github/workflows/compiler_playground.yml
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: true
+
+env:
+  TZ: /usr/share/zoneinfo/America/Los_Angeles
+  # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#cache-segment-restore-timeout
+  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 1
 
 defaults:
   run:
-    working-directory: compiler
+    working-directory: compiler/apps/playground
 
 jobs:
   playground:
@@ -20,15 +29,27 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
         with:
-          node-version: 18.x
-          cache: "yarn"
-          cache-dependency-path: compiler/yarn.lock
+          node-version-file: '.nvmrc'
+          cache: yarn
+          cache-dependency-path: compiler/**/yarn.lock
       - name: Restore cached node_modules
         uses: actions/cache@v4
         id: node_modules
         with:
           path: "**/node_modules"
-          key: ${{ runner.arch }}-${{ runner.os }}-modules-${{ hashFiles('compiler/**/yarn.lock') }}
-      - run: yarn install --frozen-lockfile
+          key: compiler-node_modules-${{ runner.arch }}-${{ runner.os }}-${{ hashFiles('compiler/**/yarn.lock') }}
+      - name: yarn install compiler
+        run: yarn install --frozen-lockfile
+        working-directory: compiler
+      - name: yarn install playground
+        run: yarn install --frozen-lockfile
       - run: npx playwright install --with-deps chromium
-      - run: yarn workspace playground test
+      - run: CI=true yarn test
+      - run: ls -R test-results
+        if: '!cancelled()'
+      - name: Archive test results
+        if: '!cancelled()'
+        uses: actions/upload-artifact@v4
+        with:
+          name: test-results
+          path: compiler/apps/playground/test-results

.github/workflows/compiler_prereleases.yml

@@ -0,0 +1,55 @@
+name: (Compiler) Publish Prereleases
+
+on:
+  workflow_call:
+    inputs:
+      commit_sha:
+        required: true
+        default: ''
+        type: string
+      release_channel:
+        required: true
+        type: string
+      dist_tag:
+        required: true
+        type: string
+      version_name:
+        required: true
+        type: string
+    secrets:
+      NPM_TOKEN:
+        required: true
+
+env:
+  TZ: /usr/share/zoneinfo/America/Los_Angeles
+  # https://github.com/actions/cache/blob/main/tips-and-workarounds.md#cache-segment-restore-timeout
+  SEGMENT_DOWNLOAD_TIMEOUT_MINS: 1
+  GH_TOKEN: ${{ github.token }}
+  NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+
+defaults:
+  run:
+    working-directory: compiler
+
+jobs:
+  publish_prerelease:
+    name: Publish prelease (${{ inputs.release_channel }}) ${{ inputs.commit_sha }} @${{ inputs.dist_tag }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version-file: '.nvmrc'
+          cache: yarn
+          cache-dependency-path: compiler/yarn.lock
+      - name: Restore cached node_modules
+        uses: actions/cache@v4
+        id: node_modules
+        with:
+          path: "**/node_modules"
+          key: compiler-node_modules-${{ runner.arch }}-${{ runner.os }}-${{ hashFiles('compiler/**/yarn.lock') }}
+      - run: yarn install --frozen-lockfile
+      - name: Publish packages to npm
+        run: |
+          cp ./scripts/release/ci-npmrc ~/.npmrc
+          scripts/release/publish.js --frfr --ci --versionName=${{ inputs.version_name }} --tag ${{ inputs.dist_tag }}

.github/workflows/compiler_prereleases_manual.yml

@@ -0,0 +1,31 @@
+name: (Compiler) Publish Prereleases Manual
+
+on:
+  workflow_dispatch:
+    inputs:
+      prerelease_commit_sha:
+        required: false
+      release_channel:
+        required: true
+        type: string
+      dist_tag:
+        required: true
+        type: string
+      version_name:
+        required: true
+        type: string
+
+env:
+  TZ: /usr/share/zoneinfo/America/Los_Angeles
+
+jobs:
+  publish_prerelease_experimental:
+    name: Publish to Experimental channel
+    uses: facebook/react/.github/workflows/compiler_prereleases.yml@main
+    with:
+      commit_sha: ${{ inputs.prerelease_commit_sha || github.sha }}
+      release_channel: ${{ inputs.release_channel }}
+      dist_tag: ${{ inputs.dist_tag }}
+      version_name: ${{ inputs.version_name }}
+    secrets:
+      NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/compiler_prereleases_nightly.yml

@@ -0,0 +1,21 @@
+name: (Compiler) Publish Prereleases Nightly
+
+on:
+  schedule:
+    # At 10 minutes past 16:00 on Mon, Tue, Wed, Thu, and Fri
+    - cron: 10 16 * * 1,2,3,4,5
+
+env:
+  TZ: /usr/share/zoneinfo/America/Los_Angeles
+
+jobs:
+  publish_prerelease_experimental:
+    name: Publish to Experimental channel
+    uses: facebook/react/.github/workflows/compiler_prereleases.yml@main
+    with:
+      commit_sha: ${{ github.sha }}
+      release_channel: experimental
+      dist_tag: experimental
+      version_name: '0.0.0'
+    secrets:
+      NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/compiler_prereleases_weekly.yml

@@ -0,0 +1,21 @@
+name: (Compiler) Publish Prereleases Weekly
+
+on:
+  schedule:
+    # At 10 minutes past 9:00 on Mon
+    - cron: 10 9 * * 1
+
+env:
+  TZ: /usr/share/zoneinfo/America/Los_Angeles
+
+jobs:
+  publish_prerelease_beta:
+    name: Publish to beta channel
+    uses: facebook/react/.github/workflows/compiler_prereleases.yml@main
+    with:
+      commit_sha: ${{ github.sha }}
+      release_channel: beta
+      dist_tag: beta
+      version_name: '19.0.0'
+    secrets:
+      NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/compiler_rust.yml

@@ -15,9 +15,14 @@ on:
       - compiler/Cargo.*
       - compiler/*.toml
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: true
+
 env:
   CARGO_TERM_COLOR: always
   RUSTFLAGS: -Dwarnings
+  TZ: /usr/share/zoneinfo/America/Los_Angeles
 
 defaults:
   run: