Tweak blog post to match others

Fix this so that @nhunzaker gets his name up there for real (will want to cherry-pick back to master but the blog post isn't there either so I'll let y'all handle that)

.babelrc

@@ -0,0 +1,28 @@
+{
+  "presets": ["react"],
+  "ignore": ["third_party"],
+  "plugins": [
+    "transform-class-properties",
+    "syntax-trailing-function-commas",
+    "transform-object-rest-spread",
+    "transform-es2015-template-literals",
+    "transform-es2015-literals",
+    "transform-es2015-arrow-functions",
+    "transform-es2015-block-scoped-functions",
+    ["transform-es2015-classes", { "loose": true }],
+    "transform-es2015-object-super",
+    "transform-es2015-shorthand-properties",
+    "transform-es2015-computed-properties",
+    "transform-es2015-for-of",
+    "check-es2015-constants",
+    ["transform-es2015-spread", { "loose": true }],
+    "transform-es2015-parameters",
+    ["transform-es2015-destructuring", { "loose": true }],
+    "transform-es2015-block-scoping",
+    "transform-es2015-modules-commonjs",
+    "transform-es3-member-expression-literals",
+    "transform-es3-property-literals",
+    "./scripts/babel/transform-object-assign-require",
+    "transform-react-jsx-source"
+  ]
+}

.circleci/config.yml

@@ -1,538 +0,0 @@
-version: 2
-
-aliases:
-  - &docker
-    - image: circleci/openjdk:8-jdk-node-browsers
-
-  - &environment
-    TZ: /usr/share/zoneinfo/America/Los_Angeles
-
-  - &restore_yarn_cache
-    restore_cache:
-      name: Restore node_modules cache
-      keys:
-        - v2-node-{{ arch }}-{{ .Branch }}-{{ checksum "yarn.lock" }}
-        - v2-node-{{ arch }}-{{ .Branch }}-
-        - v2-node-{{ arch }}-
-  - &run_yarn
-    run:
-      name: Install Packages
-      command: yarn --frozen-lockfile
-
-  - &attach_workspace
-    at: build
-
-  - &process_artifacts
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: node ./scripts/rollup/consolidateBundleSizes.js
-      - run: ./scripts/circleci/pack_and_store_artifact.sh
-      - store_artifacts:
-          path: ./node_modules.tgz
-      - store_artifacts:
-          path: ./build.tgz
-      - store_artifacts:
-          path: ./build/bundle-sizes.json
-      - store_artifacts:
-          # TODO: Update release script to use local file instead of pulling
-          # from artifacts.
-          path: ./scripts/error-codes/codes.json
-      - persist_to_workspace:
-          root: build
-          paths:
-            - bundle-sizes.json
-
-jobs:
-  setup:
-    docker: *docker
-    environment: *environment
-
-    steps:
-      - checkout
-      - run:
-          name: Nodejs Version
-          command: node --version
-      - *restore_yarn_cache
-      - *run_yarn
-      - save_cache:
-          name: Save node_modules cache
-          key: v2-node-{{ arch }}-{{ .Branch }}-{{ checksum "yarn.lock" }}
-          paths:
-            - ~/.cache/yarn
-
-  yarn_lint:
-    docker: *docker
-    environment: *environment
-
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: node ./scripts/prettier/index
-      - run: node ./scripts/tasks/eslint
-      - run: ./scripts/circleci/check_license.sh
-      - run: ./scripts/circleci/check_modules.sh
-      - run: ./scripts/circleci/test_print_warnings.sh
-
-  yarn_flow:
-    docker: *docker
-    environment: *environment
-
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: node ./scripts/tasks/flow-ci
-
-  RELEASE_CHANNEL_stable_yarn_test:
-    docker: *docker
-    environment: *environment
-
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=stable --ci
-
-  yarn_test:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --ci
-
-  RELEASE_CHANNEL_stable_yarn_test_www:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=www-classic --ci
-
-  RELEASE_CHANNEL_stable_yarn_test_www_variant:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=www-classic --variant --ci
-
-  RELEASE_CHANNEL_stable_yarn_test_prod_www:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=www-classic --prod --ci
-
-  RELEASE_CHANNEL_stable_yarn_test_prod_www_variant:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=www-classic --prod --variant --ci
-
-  yarn_test_www:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=www-modern --ci
-
-  yarn_test_www_variant:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=www-modern --variant --ci
-
-  yarn_test_prod_www:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=www-modern --prod --ci
-
-  yarn_test_prod_www_variant:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=www-modern --prod --variant --ci
-
-  RELEASE_CHANNEL_stable_yarn_test_persistent:
-    docker: *docker
-    environment: *environment
-
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=stable --persistent --ci
-
-  RELEASE_CHANNEL_stable_yarn_test_prod:
-    docker: *docker
-    environment: *environment
-
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=stable --prod --ci
-
-  yarn_test_prod:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=experimental --prod --ci
-
-  RELEASE_CHANNEL_stable_yarn_build:
-    docker: *docker
-    environment: *environment
-    parallelism: 20
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run:
-          environment:
-            RELEASE_CHANNEL: stable
-          command: |
-            ./scripts/circleci/add_build_info_json.sh
-            ./scripts/circleci/update_package_versions.sh
-            yarn build
-      - run: echo "stable" >> build/RELEASE_CHANNEL
-      - persist_to_workspace:
-          root: build
-          paths:
-            - RELEASE_CHANNEL
-            - facebook-www
-            - facebook-react-native
-            - node_modules
-            - react-native
-            - dist
-            - sizes/*.json
-
-  yarn_build:
-    docker: *docker
-    environment: *environment
-    parallelism: 20
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run:
-          environment:
-            RELEASE_CHANNEL: experimental
-          command: |
-            ./scripts/circleci/add_build_info_json.sh
-            ./scripts/circleci/update_package_versions.sh
-            yarn build
-      - run: echo "experimental" >> build/RELEASE_CHANNEL
-      - persist_to_workspace:
-          root: build
-          paths:
-            - RELEASE_CHANNEL
-            - facebook-www
-            - facebook-react-native
-            - node_modules
-            - react-native
-            - dist
-            - sizes/*.json
-
-  build_devtools_and_process_artifacts:
-    docker: *docker
-    environment: *environment
-    parallelism: 20
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      - run:
-          environment:
-            RELEASE_CHANNEL: experimental
-          command: ./scripts/circleci/pack_and_store_devtools_artifacts.sh
-      - store_artifacts:
-          path: ./build/devtools.tgz
-
-  # These jobs are named differently so we can distinguish the stable and
-  # and experimental artifacts
-  process_artifacts: *process_artifacts
-  process_artifacts_experimental: *process_artifacts
-
-  sizebot_stable:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      # This runs in the process_artifacts job, too, but it's faster to run
-      # this step in both jobs instead of running the jobs sequentially
-      - run: node ./scripts/rollup/consolidateBundleSizes.js
-      - run:
-          environment:
-            RELEASE_CHANNEL: stable
-          command: node ./scripts/tasks/danger
-
-  sizebot_experimental:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      # This runs in the process_artifacts job, too, but it's faster to run
-      # this step in both jobs instead of running the jobs sequentially
-      - run: node ./scripts/rollup/consolidateBundleSizes.js
-      - run:
-          environment:
-            RELEASE_CHANNEL: experimental
-          command: node ./scripts/tasks/danger
-
-  yarn_lint_build:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn lint-build
-      - run: scripts/circleci/check_minified_errors.sh
-
-  RELEASE_CHANNEL_stable_yarn_lint_build:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      - run:
-          environment:
-            RELEASE_CHANNEL: stable
-          command: yarn lint-build
-      - run: scripts/circleci/check_minified_errors.sh
-
-  RELEASE_CHANNEL_stable_yarn_test_build:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=stable --build --ci
-
-  yarn_test_build:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=experimental --build --ci
-
-  yarn_test_build_devtools:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --project=devtools --build --ci
-
-  RELEASE_CHANNEL_stable_yarn_test_dom_fixtures:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - run:
-          name: Run DOM fixture tests
-          environment:
-            RELEASE_CHANNEL: stable
-          command: |
-            cd fixtures/dom
-            yarn --frozen-lockfile
-            yarn prestart
-            yarn test --maxWorkers=2
-
-  test_fuzz:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - *restore_yarn_cache
-      - *run_yarn
-      - run:
-          name: Run fuzz tests
-          command: |
-            FUZZ_TEST_SEED=$RANDOM yarn test fuzz --ci
-            FUZZ_TEST_SEED=$RANDOM yarn test --prod fuzz --ci
-
-  RELEASE_CHANNEL_stable_yarn_test_build_prod:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=stable --build --prod --ci
-
-  yarn_test_build_prod:
-    docker: *docker
-    environment: *environment
-    steps:
-      - checkout
-      - attach_workspace: *attach_workspace
-      - *restore_yarn_cache
-      - *run_yarn
-      - run: yarn test --release-channel=experimental --build --prod --ci
-
-workflows:
-  version: 2
-  stable:
-    jobs:
-      - setup
-      - yarn_lint:
-          requires:
-            - setup
-      - yarn_flow:
-          requires:
-            - setup
-      - RELEASE_CHANNEL_stable_yarn_test:
-          requires:
-            - setup
-      - RELEASE_CHANNEL_stable_yarn_test_prod:
-          requires:
-            - setup
-      - RELEASE_CHANNEL_stable_yarn_test_persistent:
-          requires:
-            - setup
-      - RELEASE_CHANNEL_stable_yarn_test_www:
-          requires:
-            - setup
-      - RELEASE_CHANNEL_stable_yarn_test_www_variant:
-          requires:
-            - setup
-      - RELEASE_CHANNEL_stable_yarn_test_prod_www:
-          requires:
-            - setup
-      - RELEASE_CHANNEL_stable_yarn_test_prod_www_variant:
-          requires:
-            - setup
-      - RELEASE_CHANNEL_stable_yarn_build:
-          requires:
-            - setup
-      - process_artifacts:
-          requires:
-            - RELEASE_CHANNEL_stable_yarn_build
-      - sizebot_stable:
-          requires:
-            - RELEASE_CHANNEL_stable_yarn_build
-      - RELEASE_CHANNEL_stable_yarn_lint_build:
-          requires:
-            - RELEASE_CHANNEL_stable_yarn_build
-      - RELEASE_CHANNEL_stable_yarn_test_build:
-          requires:
-            - RELEASE_CHANNEL_stable_yarn_build
-      - RELEASE_CHANNEL_stable_yarn_test_build_prod:
-          requires:
-            - RELEASE_CHANNEL_stable_yarn_build
-      - RELEASE_CHANNEL_stable_yarn_test_dom_fixtures:
-          requires:
-            - RELEASE_CHANNEL_stable_yarn_build
-
-  experimental:
-    jobs:
-      - setup
-      - yarn_test:
-          requires:
-            - setup
-      - yarn_test_prod:
-          requires:
-            - setup
-      - yarn_test_www:
-          requires:
-            - setup
-      - yarn_test_www_variant:
-          requires:
-            - setup
-      - yarn_test_prod_www:
-          requires:
-            - setup
-      - yarn_test_prod_www_variant:
-          requires:
-            - setup
-      - yarn_build:
-          requires:
-            - setup
-      - process_artifacts_experimental:
-          requires:
-            - yarn_build
-      - sizebot_experimental:
-          requires:
-            - yarn_build
-      - yarn_test_build:
-          requires:
-            - yarn_build
-      - yarn_test_build_prod:
-          requires:
-            - yarn_build
-      - yarn_lint_build:
-          requires:
-            - yarn_build
-      - yarn_test_build_devtools:
-          requires:
-            - yarn_build
-      # FIXME: Temporarily disabled to unblock master.
-      # - build_devtools_and_process_artifacts:
-      #     requires:
-      #       - yarn_build
-
-  fuzz_tests:
-    triggers:
-      - schedule:
-          # Fuzz tests run hourly
-          cron: "0 * * * *"
-          filters:
-            branches:
-              only:
-                - master
-    jobs:
-      - setup
-      - test_fuzz:
-          requires:
-            - setup

.codesandbox/ci.json

@@ -1,10 +0,0 @@
-{
-  "packages": ["packages/react", "packages/react-dom", "packages/scheduler"],
-  "buildCommand": "build --type=NODE react/index,react-dom/index,react-dom/server,scheduler/index,scheduler/tracing",
-  "publishDirectory": {
-    "react": "build/node_modules/react",
-    "react-dom": "build/node_modules/react-dom",
-    "scheduler": "build/node_modules/scheduler"
-  },
-  "sandboxes": ["new"]
-}

.editorconfig

@@ -1,4 +1,4 @@
-# https://editorconfig.org
+# http://editorconfig.org
 root = true
 
 [*]

.eslintignore

@@ -1,21 +1,19 @@
-# Third party
-**/node_modules
-
-# Not written by hand
-packages/react-art/npm/lib
-
-# Build products
+# We can probably lint these later but not important at this point
+addons/**/node_modules/
+src/renderers/art
+src/shared/vendor
+# But not in docs/_js/examples/*
+docs/_js/*.js
+docs/js/
+docs/_site/
+# gems
+docs/vendor/bundle/
+# This should be more like examples/**/thirdparty/** but
+# we should fix https://github.com/facebook/esprima/pull/85 first
+examples/
+fixtures/
+# Ignore built files.
 build/
 coverage/
-fixtures/
-scripts/bench/benchmarks/**/*.js
-
-# React repository clone
-scripts/bench/remote-repo/
-
-packages/react-devtools-core/dist
-packages/react-devtools-extensions/chrome/build
-packages/react-devtools-extensions/firefox/build
-packages/react-devtools-extensions/shared/build
-packages/react-devtools-inline/dist
-packages/react-devtools-shell/dist
+scripts/bench/bench-*.js
+vendor/*

.eslintrc.js

@@ -1,73 +1,39 @@
-'use strict';
-
-const {
-  es5Paths,
-  esNextPaths,
-} = require('./scripts/shared/pathsByLanguageVersion');
-
-const restrictedGlobals = require('confusing-browser-globals');
-
 const OFF = 0;
+const WARNING = 1;
 const ERROR = 2;
 
 module.exports = {
-  extends: ['fbjs', 'prettier'],
+  extends: 'fbjs',
 
-  // Stop ESLint from looking for a configuration file in parent folders
-  root: true,
-
-  plugins: ['jest', 'no-for-of-loops', 'react', 'react-internal'],
-
-  parser: 'babel-eslint',
-  parserOptions: {
-    ecmaVersion: 8,
-    sourceType: 'script',
-    ecmaFeatures: {
-      experimentalObjectRestSpread: true,
-    },
-  },
+  plugins: [
+    'react',
+    'react-internal',
+  ],
 
   // We're stricter than the default config, mostly. We'll override a few rules
   // and then enable some React specific ones.
   rules: {
     'accessor-pairs': OFF,
     'brace-style': [ERROR, '1tbs'],
+    'comma-dangle': [ERROR, 'always-multiline'],
     'consistent-return': OFF,
     'dot-location': [ERROR, 'property'],
-    // We use console['error']() as a signal to not transform it:
-    'dot-notation': [ERROR, {allowPattern: '^(error|warn)$'}],
+    'dot-notation': ERROR,
     'eol-last': ERROR,
-    eqeqeq: [ERROR, 'allow-null'],
-    indent: OFF,
+    'eqeqeq': [ERROR, 'allow-null'],
+    'indent': OFF, // We use Prettier now
     'jsx-quotes': [ERROR, 'prefer-double'],
     'keyword-spacing': [ERROR, {after: true, before: true}],
     'no-bitwise': OFF,
     'no-inner-declarations': [ERROR, 'functions'],
     'no-multi-spaces': ERROR,
-    'no-restricted-globals': [ERROR].concat(restrictedGlobals),
     'no-restricted-syntax': [ERROR, 'WithStatement'],
     'no-shadow': ERROR,
     'no-unused-expressions': ERROR,
     'no-unused-vars': [ERROR, {args: 'none'}],
-    'no-use-before-define': OFF,
-    'no-useless-concat': OFF,
-    quotes: [ERROR, 'single', {avoidEscape: true, allowTemplateLiterals: true}],
+    'quotes': [ERROR, 'single', {avoidEscape: true, allowTemplateLiterals: true }],
     'space-before-blocks': ERROR,
-    'space-before-function-paren': OFF,
-    'valid-typeof': [ERROR, {requireStringLiterals: true}],
-
-    // We apply these settings to files that should run on Node.
-    // They can't use JSX or ES6 modules, and must be in strict mode.
-    // They can, however, use other ES6 features.
-    // (Note these rules are overridden later for source files.)
-    'no-var': ERROR,
-    strict: ERROR,
-
-    // Enforced by Prettier
-    // TODO: Prettier doesn't handle long strings or long comments. Not a big
-    // deal. But I turned it off because loading the plugin causes some obscure
-    // syntax error and it didn't seem worth investigating.
-    'max-len': OFF,
+    'space-before-function-paren': [ERROR, {anonymous: 'never', named: 'never'}],
 
     // React & JSX
     // Our transforms set this automatically
@@ -75,110 +41,16 @@ module.exports = {
     'react/jsx-no-undef': ERROR,
     // We don't care to do this
     'react/jsx-sort-prop-types': OFF,
-    'react/jsx-space-before-closing': ERROR,
     'react/jsx-uses-react': ERROR,
     'react/no-is-mounted': OFF,
     // This isn't useful in our test code
     'react/react-in-jsx-scope': ERROR,
     'react/self-closing-comp': ERROR,
     // We don't care to do this
-    'react/jsx-wrap-multilines': [
-      ERROR,
-      {declaration: false, assignment: false},
-    ],
-
-    // Prevent for...of loops because they require a Symbol polyfill.
-    // You can disable this rule for code that isn't shipped (e.g. build scripts and tests).
-    'no-for-of-loops/no-for-of-loops': ERROR,
+    'react/wrap-multilines': [ERROR, {declaration: false, assignment: false}],
 
     // CUSTOM RULES
     // the second argument of warning/invariant should be a literal string
-    'react-internal/no-primitive-constructors': ERROR,
-    'react-internal/no-to-warn-dev-within-to-throw': ERROR,
-    'react-internal/invariant-args': ERROR,
-    'react-internal/warning-args': ERROR,
-    'react-internal/no-production-logging': ERROR,
-    'react-internal/no-cross-fork-imports': ERROR,
-  },
-
-  overrides: [
-    {
-      // We apply these settings to files that we ship through npm.
-      // They must be ES5.
-      files: es5Paths,
-      parser: 'espree',
-      parserOptions: {
-        ecmaVersion: 5,
-        sourceType: 'script',
-      },
-      rules: {
-        'no-var': OFF,
-        strict: ERROR,
-      },
-    },
-    {
-      // We apply these settings to the source files that get compiled.
-      // They can use all features including JSX (but shouldn't use `var`).
-      files: esNextPaths,
-      parser: 'babel-eslint',
-      parserOptions: {
-        ecmaVersion: 8,
-        sourceType: 'module',
-      },
-      rules: {
-        'no-var': ERROR,
-        'prefer-const': ERROR,
-        strict: OFF,
-      },
-    },
-    {
-      files: ['**/__tests__/*.js'],
-      rules: {
-        // https://github.com/jest-community/eslint-plugin-jest
-        'jest/no-focused-tests': ERROR,
-        'jest/valid-expect': ERROR,
-        'jest/valid-expect-in-promise': ERROR,
-      },
-    },
-    {
-      files: [
-        '**/__tests__/**/*.js',
-        'scripts/**/*.js',
-        'packages/*/npm/**/*.js',
-        'packages/dom-event-testing-library/**/*.js',
-        'packages/react-devtools*/**/*.js',
-      ],
-      rules: {
-        'react-internal/no-production-logging': OFF,
-        'react-internal/warning-args': OFF,
-      },
-    },
-    {
-      files: ['packages/react-native-renderer/**/*.js'],
-      globals: {
-        nativeFabricUIManager: true,
-      },
-    },
-    {
-      files: ['packages/react-transport-dom-webpack/**/*.js'],
-      globals: {
-        __webpack_chunk_load__: true,
-        __webpack_require__: true,
-      },
-    },
-  ],
-
-  globals: {
-    SharedArrayBuffer: true,
-
-    spyOnDev: true,
-    spyOnDevAndProd: true,
-    spyOnProd: true,
-    __PROFILE__: true,
-    __UMD__: true,
-    __EXPERIMENTAL__: true,
-    __VARIANT__: true,
-    gate: true,
-    trustedTypes: true,
-  },
+    'react-internal/warning-and-invariant-args': ERROR,
+  }
 };

.flowconfig

@@ -0,0 +1,43 @@
+[ignore]
+
+<PROJECT_ROOT>/examples/.*
+<PROJECT_ROOT>/fixtures/.*
+<PROJECT_ROOT>/build/.*
+<PROJECT_ROOT>/node_modules/chrome-devtools-frontend/.*
+<PROJECT_ROOT>/.*/node_modules/chrome-devtools-frontend/.*
+<PROJECT_ROOT>/.*/node_modules/y18n/.*
+<PROJECT_ROOT>/.*/__mocks__/.*
+<PROJECT_ROOT>/.*/__tests__/.*
+<PROJECT_ROOT>/addons/.*
+
+# Ignore Docs
+<PROJECT_ROOT>/docs/.*
+<PROJECT_ROOT>/.*/docs/.*
+
+[include]
+
+[libs]
+./node_modules/fbjs/flow/lib/dev.js
+./flow
+
+[options]
+module.system=haste
+
+esproposal.class_static_fields=enable
+esproposal.class_instance_fields=enable
+
+munge_underscores=false
+
+suppress_type=$FlowIssue
+suppress_type=$FlowFixMe
+suppress_type=$FixMe
+suppress_type=$FlowExpectedError
+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(3[0-3]\\|[1-2][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*www[a-z,_]*\\)?)\\)
+suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(3[0-3]\\|[1-2][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*www[a-z,_]*\\)?)\\)?:? #[0-9]+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy
+suppress_comment=\\(.\\|\n\\)*\\$FlowExpectedError
+
+[version]
+^0.37.0
+

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,41 +0,0 @@
----
-name: "🐛 Bug Report"
-about: Report a reproducible bug or regression.
-title: 'Bug: '
-labels: 'Status: Unconfirmed'
-
----
-
-<!--
-  Please provide a clear and concise description of what the bug is. Include
-  screenshots if needed. Please test using the latest version of the relevant
-  React packages to make sure your issue has not already been fixed.
--->
-
-React version:
-
-## Steps To Reproduce
-
-1.
-2.
-
-<!--
-  Your bug will get fixed much faster if we can run your code and it doesn't
-  have dependencies other than React. Issues without reproduction steps or
-  code examples may be immediately closed as not actionable.
--->
-
-Link to code example:
-
-<!--
-  Please provide a CodeSandbox (https://codesandbox.io/s/new), a link to a
-  repository on GitHub, or provide a minimal code example that reproduces the
-  problem. You may provide a screenshot of the application if you think it is
-  relevant to your bug report. Here are some tips for providing a minimal
-  example: https://stackoverflow.com/help/mcve.
--->
-
-## The current behavior
-
-
-## The expected behavior

.github/ISSUE_TEMPLATE/config.yml

@@ -1,7 +0,0 @@
-contact_links:
-    - name: 📃 Documentation Issue
-      url: https://github.com/reactjs/reactjs.org/issues/new
-      about: This issue tracker is not for documentation issues. Please file documentation issues here.
-    - name: 🤔 Questions and Help
-      url: https://reactjs.org/community/support.html
-      about: This issue tracker is not for support questions. Please refer to the React community's help and discussion forums.

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,27 +1,11 @@
-<!--
-  Thanks for submitting a pull request!
-  We appreciate you spending the time to work on these changes. Please provide enough information so that others can review your pull request. The three fields below are mandatory.
+**Before submitting a pull request,** please make sure the following is done:
 
-  Before submitting a pull request, please make sure the following is done:
-
-  1. Fork [the repository](https://github.com/facebook/react) and create your branch from `master`.
-  2. Run `yarn` in the repository root.
-  3. If you've fixed a bug or added code that should be tested, add tests!
-  4. Ensure the test suite passes (`yarn test`). Tip: `yarn test --watch TestName` is helpful in development.
-  5. Run `yarn test-prod` to test in the production environment. It supports the same options as `yarn test`.
-  6. If you need a debugger, run `yarn debug-test --watch TestName`, open `chrome://inspect`, and press "Inspect".
-  7. Format your code with [prettier](https://github.com/prettier/prettier) (`yarn prettier`).
-  8. Make sure your code lints (`yarn lint`). Tip: `yarn linc` to only check changed files.
-  9. Run the [Flow](https://flowtype.org/) type checks (`yarn flow`).
-  10. If you haven't already, complete the CLA.
-
-  Learn more about contributing: https://reactjs.org/docs/how-to-contribute.html
--->
-
-## Summary
-
-<!-- Explain the **motivation** for making this change. What existing problem does the pull request solve? -->
-
-## Test Plan
-
-<!-- Demonstrate the code is solid. Example: The exact commands you ran and their output, screenshots / videos if the pull request changes the user interface. -->
+1. Fork [the repository](https://github.com/facebook/react) and create your branch from `master`.
+2. If you've added code that should be tested, add tests!
+3. If you've changed APIs, update the documentation.
+4. Ensure the test suite passes (`npm test`).
+5. Make sure your code lints (`npm run lint`).
+6. Format your code with [prettier](https://github.com/prettier/prettier) (`npm run prettier`).
+7. Run the [Flow](https://flowtype.org/) typechecks (`npm run flow`).
+8. If you added or removed any tests, run `./scripts/fiber/record-tests` before submitting the pull request, and commit the resulting changes.
+9. If you haven't already, complete the CLA.

.github/stale.yml

@@ -1,34 +0,0 @@
-# Configuration for probot-stale - https://github.com/probot/stale
-# Number of days of inactivity before an issue becomes stale
-daysUntilStale: 90
-# Number of days of inactivity before a stale issue is closed
-daysUntilClose: 7
-# Issues with these labels will never be considered stale
-exemptLabels:
-  - "Partner"
-  - "React Core Team"
-  - "Resolution: Backlog"
-  - "Type: Bug"
-  - "Type: Discussion"
-  - "Type: Needs Investigation"
-  - "Type: Regression"
-# Label to use when marking an issue as stale
-staleLabel: "Resolution: Stale"
-issues:
-  # Comment to post when marking an issue as stale.
-  markComment: >
-    This issue has been automatically marked as stale.
-    **If this issue is still affecting you, please leave any comment** (for example, "bump"), and we'll keep it open.
-    We are sorry that we haven't been able to prioritize it yet. If you have any new additional information, please include it with your comment!
-  # Comment to post when closing a stale issue.
-  closeComment: >
-    Closing this issue after a prolonged period of inactivity. If this issue is still present in the latest release, please create a new issue with up-to-date information. Thank you!
-pulls:
-  # Comment to post when marking a pull request as stale.
-  markComment: >
-    This pull request has been automatically marked as stale.
-    **If this pull request is still relevant, please leave any comment** (for example, "bump"), and we'll keep it open.
-    We are sorry that we haven't been able to prioritize reviewing it yet. Your contribution is very much appreciated.
-  # Comment to post when closing a stale pull request.
-  closeComment: >
-    Closing this pull request after a prolonged period of inactivity. If this issue is still present in the latest release, please ask for this pull request to be reopened. Thank you!

.gitignore

@@ -1,18 +1,29 @@
 .DS_STORE
 node_modules
-scripts/flow/*/.flowconfig
-.flowconfig
 *~
 *.pyc
+static
 .grunt
 _SpecRunner.html
 __benchmarks__
 build/
-remote-repo/
 coverage/
 .module-cache
+*.gem
+docs/.bundle
+docs/code
+docs/_site
+docs/.sass-cache
+docs/js/*
+docs/downloads/*.zip
+docs/vendor/bundle
+<<<<<<< HEAD
+examples/shared/*.js
+examples/**/bundle.js
+=======
 fixtures/dom/public/react-dom.js
 fixtures/dom/public/react.js
+>>>>>>> 4a37718... Remove examples/ folder (#9323)
 test/the-files-to-test.generated.js
 *.log*
 chrome-user-data
@@ -21,17 +32,3 @@ chrome-user-data
 .idea
 *.iml
 .vscode
-*.swp
-*.swo
-
-packages/react-devtools-core/dist
-packages/react-devtools-extensions/chrome/build
-packages/react-devtools-extensions/chrome/*.crx
-packages/react-devtools-extensions/chrome/*.pem
-packages/react-devtools-extensions/firefox/build
-packages/react-devtools-extensions/firefox/*.xpi
-packages/react-devtools-extensions/firefox/*.pem
-packages/react-devtools-extensions/shared/build
-packages/react-devtools-extensions/.tempUserDataDir
-packages/react-devtools-inline/dist
-packages/react-devtools-shell/dist

.mailmap

@@ -11,6 +11,8 @@ Andrew Kulakov <avk@8xx8.ru>
 Andrew Sokolov <asokolov@atlassian.com>
 Anto Aravinth <anto.aravinth.cse@gmail.com>
 Baraa Hamodi <bhamodi@uwaterloo.ca> <baraa@optimizely.com>
+Ben Alpert <ben@benalpert.com> <balpert@fb.com>
+Ben Alpert <ben@benalpert.com> <spicyjalapeno@gmail.com>
 Ben Halpern <bendhalpern@gmail.com>
 Ben Newman <bn@cs.stanford.edu> <benjamn@fb.com>
 Benjamin Woodruff <github@benjam.info> <bgw@fb.com>
@@ -88,7 +90,6 @@ Kevin Coughlin <kevintcoughlin@gmail.com> <kevincoughlin@tumblr.com>
 Krystian Karczewski <karcz.k@gmail.com>
 Kunal Mehta <k.mehta@berkeley.edu> <kunalm@fb.com>
 Laurence Rowe <l@lrowe.co.uk> <laurence@lrowe.co.uk>
-Lea Rosema <terabaud@gmail.com>
 Marcin K. <katzoo@github.mail>
 Mark Anderson <undernewmanagement@users.noreply.github.com>
 Mark Funk <mfunk86@gmail.com> <mark@boomtownroi.com>
@@ -136,10 +137,6 @@ Sebastian Markbåge <sebastian@calyptus.eu> <sema@fb.com>
 Sergey Rubanov <chi187@gmail.com>
 Shogun Sea <shogunsea08@gmail.com> <xxin@groupon.com>
 Soichiro Kawamura <mail@w-st.com>
-Sophie Alpert <git@sophiebits.com> <balpert@fb.com>
-Sophie Alpert <git@sophiebits.com> <ben@benalpert.com>
-Sophie Alpert <git@sophiebits.com> <sophiebits@fb.com>
-Sophie Alpert <git@sophiebits.com> <spicyjalapeno@gmail.com>
 Sota Ohara <ohrst.18@gmail.com>
 Steven Luscher <react@steveluscher.com> <github@steveluscher.com>
 Steven Luscher <react@steveluscher.com> <steveluscher@fb.com>

.nvmrc

@@ -1 +0,0 @@
-v12.16.2

.prettierignore

@@ -1,6 +0,0 @@
-packages/react-devtools-core/dist
-packages/react-devtools-extensions/chrome/build
-packages/react-devtools-extensions/firefox/build
-packages/react-devtools-extensions/shared/build
-packages/react-devtools-inline/dist
-packages/react-devtools-shell/dist

.prettierrc.js

@@ -1,21 +0,0 @@
-'use strict';
-
-const {esNextPaths} = require('./scripts/shared/pathsByLanguageVersion');
-
-module.exports = {
-  bracketSpacing: false,
-  singleQuote: true,
-  jsxBracketSameLine: true,
-  trailingComma: 'es5',
-  printWidth: 80,
-  parser: 'babel',
-
-  overrides: [
-    {
-      files: esNextPaths,
-      options: {
-        trailingComma: 'all',
-      },
-    },
-  ],
-};

.travis.yml

@@ -0,0 +1,134 @@
+---
+sudo: required
+dist: trusty
+language: node_js
+node_js:
+- 4
+rvm:
+- 2.2.3
+cache:
+  directories:
+  - docs/vendor/bundle
+  - node_modules
+before_install:
+- |
+    if [ "$TEST_TYPE" != build_website ] && \
+      ! git diff --name-only $TRAVIS_COMMIT_RANGE | grep -qvE '(\.md$)|(^(docs|examples))/'
+    then
+      echo "Only docs were updated, stopping build process."
+      exit
+    fi
+    npm install -g npm@latest-2
+    npm --version
+script:
+- |
+    if [ "$TEST_TYPE" = build_website ]; then
+      if [ "$TRAVIS_BRANCH" = "$REACT_WEBSITE_BRANCH" ] && [ "$TRAVIS_PULL_REQUEST" = false ]; then
+        set -e
+
+        GH_PAGES_DIR="$TRAVIS_BUILD_DIR"/../react-gh-pages
+        echo "machine github.com login reactjs-bot password $GITHUB_TOKEN" >~/.netrc
+        git config --global user.name "$GITHUB_USER_NAME"
+        git config --global user.email "$GITHUB_USER_EMAIL"
+
+        git clone --branch gh-pages --depth=50 \
+          https://reactjs-bot@github.com/facebook/react.git \
+          $GH_PAGES_DIR
+        pushd docs
+        bundle install --jobs=3 --retry=3 --path=vendor/bundle
+        bundle exec rake release
+        cd $GH_PAGES_DIR
+        git status
+        if test -n "$(git status --porcelain)"; then
+          git add -A .
+          git commit -m "Rebuild website"
+          git push origin gh-pages
+        fi
+        popd
+      fi
+    elif [ "$TEST_TYPE" = build ]; then
+      if [ "$SERVER" ]; then
+        set -e
+        ./node_modules/.bin/grunt build
+        curl \
+          -F "react=@build/react.js" \
+          -F "react.min=@build/react.min.js" \
+          -F "react-with-addons=@build/react-with-addons.js" \
+          -F "react-with-addons.min=@build/react-with-addons.min.js" \
+          -F "react-dom=@build/react-dom.js" \
+          -F "react-dom.min=@build/react-dom.min.js" \
+          -F "react-dom-server=@build/react-dom-server.js" \
+          -F "react-dom-server.min=@build/react-dom-server.min.js" \
+          -F "npm-react=@build/packages/react.tgz" \
+          -F "npm-react-dom=@build/packages/react-dom.tgz" \
+          -F "npm-react-native=@build/packages/react-native-renderer.tgz" \
+          -F "commit=$TRAVIS_COMMIT" \
+          -F "date=`git log --format='%ct' -1`" \
+          -F "pull_request=$TRAVIS_PULL_REQUEST" \
+          -F "token=$SECRET_TOKEN" \
+          -F "branch=$TRAVIS_BRANCH" \
+          $SERVER
+      fi
+    elif [ "$TEST_TYPE" = test ]; then
+      set -e
+      ./node_modules/.bin/grunt jest:coverage
+      cat ./coverage/lcov.info | ./node_modules/.bin/coveralls
+
+      echo 'Testing in server-render (HTML generation) mode...'
+      printf '\nmodule.exports.useCreateElement = false;\n' \
+        >> src/renderers/dom/shared/ReactDOMFeatureFlags.js
+      ./node_modules/.bin/grunt jest:normal
+      git checkout -- src/renderers/dom/shared/ReactDOMFeatureFlags.js
+
+      echo 'Testing in fiber mode...'
+      printf '\nmodule.exports.useFiber = true;\n' \
+        >> src/renderers/dom/shared/ReactDOMFeatureFlags.js
+      FIBER_TESTS=`\
+        NODE_ENV=test node node_modules/jest/bin/jest --json | \
+        node -e "\
+          var data = JSON.parse(require('fs').readFileSync('/dev/stdin', 'utf8')); \
+          console.log(data.numPassedTests + '/' + data.numTotalTests)\
+        "\
+      `
+      git checkout -- src/renderers/dom/shared/ReactDOMFeatureFlags.js
+      node scripts/facts-tracker/index.js \
+        "fiber-tests" "$FIBER_TESTS"
+
+      ./node_modules/.bin/gulp react:extract-errors
+    elif [ "$TEST_TYPE" = flow ]; then
+      set -e
+      ./node_modules/.bin/grunt flow
+
+      ALL_FILES=`find src -name '*.js' | grep -v umd/ | grep -v __tests__ | grep -v __mocks__`
+      COUNT_ALL_FILES=`echo "$ALL_FILES" | wc -l`
+      COUNT_WITH_FLOW=`grep '@flow' $ALL_FILES | perl -pe 's/:.+//' | wc -l`
+      node scripts/facts-tracker/index.js \
+        "flow-files" "$COUNT_WITH_FLOW/$COUNT_ALL_FILES"
+
+    else
+      ./node_modules/.bin/grunt $TEST_TYPE
+    fi
+env:
+  matrix:
+  - TEST_TYPE=build
+  - TEST_TYPE=test
+  - TEST_TYPE=lint
+  - TEST_TYPE=flow
+  - TEST_TYPE=build_website
+  global:
+  # SERVER
+  - secure: qPvsJ46XzGrdIuPA70b55xQNGF8jcK7N1LN5CCQYYocXLa+fBrl+fTE77QvehOPhqwJXcj6kOxI+sY0KrVwV7gmq2XY2HZGWUSCxTN0SZlNIzqPA80Y7G/yOjA4PUt8LKgP+8tptyhTAY56qf+hgW8BoLiKOdztYF2p+3zXOLuA=
+  # SECRET_TOKEN
+  - secure: dkpPW+VnoqC/okhRdV90m36NcyBFhcwEKL3bNFExAwi0dXnFao8RoFlvnwiPlA23h2faROkMIetXlti6Aju08BgUFV+f9aL6vLyU7gUent4Nd3413zf2fwDtXIWIETg6uLnOpSykGKgCAT/hY3Q2oPLqOoY0OxfgnbqwxkxljrE=
+  # GITHUB_TOKEN
+  - secure: EHCyCSKMwKlLHNtcj9nmkRzmiiPE3aDGlPcnEyrDJeRI0SeN/iCXHXfFivR0vFq3vr+9naMBczAR2AEidtps5KbJrKqdZnjPFRbmfVtzWr/LlvVCub3u13Pub6TdKIVBTny1PuZ5X8GvdxMNVig89jGjvzhhWuQRaz3VhJnTra4=
+  # COVERALLS_TOKEN
+  - secure: h/cUq+TrUMZOQmkFD7CvuwX0uAwmjIfKZ4qSUzY+QzUtDzOzA0L/XF84xTBq1Q5YYsEiaoF6GxxGCdrLQiBA/ZTd+88UHgeZPMRvi0xG9Q+PeePVOsZMTxy4/WWFgOfSQCk49Mj9zizGgO78i6vxq+SDXMtFHnZ+TpPJIEW6/m0=
+notifications:
+  irc:
+    use_notice: true
+    skip_join: true
+    on_success: change
+    on_failure: change
+    channels:
+    - chat.freenode.net#reactjs

.watchmanconfig

@@ -1 +0,0 @@
-{}

CODE_OF_CONDUCT.md

@@ -1,76 +0,0 @@
-# Code of Conduct
-
-## Our Pledge
-
-In the interest of fostering an open and welcoming environment, we as
-contributors and maintainers pledge to make participation in our project and
-our community a harassment-free experience for everyone, regardless of age, body
-size, disability, ethnicity, sex characteristics, gender identity and expression,
-level of experience, education, socio-economic status, nationality, personal
-appearance, race, religion, or sexual identity and orientation.
-
-## Our Standards
-
-Examples of behavior that contributes to creating a positive environment
-include:
-
-* Using welcoming and inclusive language
-* Being respectful of differing viewpoints and experiences
-* Gracefully accepting constructive criticism
-* Focusing on what is best for the community
-* Showing empathy towards other community members
-
-Examples of unacceptable behavior by participants include:
-
-* The use of sexualized language or imagery and unwelcome sexual attention or
-  advances
-* Trolling, insulting/derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or electronic
-  address, without explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
-  professional setting
-
-## Our Responsibilities
-
-Project maintainers are responsible for clarifying the standards of acceptable
-behavior and are expected to take appropriate and fair corrective action in
-response to any instances of unacceptable behavior.
-
-Project maintainers have the right and responsibility to remove, edit, or
-reject comments, commits, code, wiki edits, issues, and other contributions
-that are not aligned to this Code of Conduct, or to ban temporarily or
-permanently any contributor for other behaviors that they deem inappropriate,
-threatening, offensive, or harmful.
-
-## Scope
-
-This Code of Conduct applies within all project spaces, and it also applies when
-an individual is representing the project or its community in public spaces.
-Examples of representing a project or community include using an official
-project e-mail address, posting via an official social media account, or acting
-as an appointed representative at an online or offline event. Representation of
-a project may be further defined and clarified by project maintainers.
-
-## Enforcement
-
-Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting the project team at <opensource-conduct@fb.com>. All
-complaints will be reviewed and investigated and will result in a response that
-is deemed necessary and appropriate to the circumstances. The project team is
-obligated to maintain confidentiality with regard to the reporter of an incident.
-Further details of specific enforcement policies may be posted separately.
-
-Project maintainers who do not follow or enforce the Code of Conduct in good
-faith may face temporary or permanent repercussions as determined by other
-members of the project's leadership.
-
-## Attribution
-
-This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
-available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
-
-[homepage]: https://www.contributor-covenant.org
-
-For answers to common questions about this code of conduct, see
-https://www.contributor-covenant.org/faq

CONTRIBUTING.md

@@ -2,4 +2,4 @@
 
 Want to contribute to React? There are a few things you need to know.  
 
-We wrote a **[contribution guide](https://reactjs.org/contributing/how-to-contribute.html)** to help you get started.
+We wrote a **[contribution guide](https://facebook.github.io/react/contributing/how-to-contribute.html)** to help you get started.

Gruntfile.js

@@ -0,0 +1,200 @@
+'use strict';
+
+var path = require('path');
+
+var GULP_EXE = 'gulp';
+if (process.platform === 'win32') {
+  GULP_EXE += '.cmd';
+}
+
+module.exports = function(grunt) {
+
+  grunt.initConfig({
+    pkg: grunt.file.readJSON('package.json'),
+    browserify: require('./grunt/config/browserify'),
+    npm: require('./grunt/config/npm'),
+    clean: [
+      './build',
+      './*.gem',
+      './docs/_site',
+      './examples/shared/*.js',
+      '.module-cache',
+    ],
+    'compare_size': require('./grunt/config/compare_size'),
+  });
+
+  function spawnGulp(args, opts, done) {
+
+    grunt.util.spawn({
+      // This could be more flexible (require.resolve & lookup bin in package)
+      // but if it breaks we'll fix it then.
+      cmd: path.join('node_modules', '.bin', GULP_EXE),
+      args: args,
+      opts: Object.assign({stdio: 'inherit'}, opts),
+    }, function(err, result, code) {
+      if (err) {
+        grunt.fail.fatal('Something went wrong running gulp: ', result);
+      }
+      done(code === 0);
+    });
+  }
+
+  Object.keys(grunt.file.readJSON('package.json').devDependencies)
+    .filter(function(npmTaskName) {
+      return npmTaskName.indexOf('grunt-') === 0;
+    })
+    .filter(function(npmTaskName) {
+      return npmTaskName !== 'grunt-cli';
+    })
+    .forEach(function(npmTaskName) {
+      grunt.loadNpmTasks(npmTaskName);
+    });
+
+  grunt.registerTask('eslint', function() {
+    // Use gulp here.
+    spawnGulp(['eslint'], null, this.async());
+  });
+
+  grunt.registerTask('lint', ['eslint']);
+
+  grunt.registerTask('flow', function() {
+    // Use gulp here.
+    spawnGulp(['flow'], null, this.async());
+  });
+
+  grunt.registerTask('delete-build-modules', function() {
+    // Use gulp here.
+    spawnGulp(['react:clean'], null, this.async());
+  });
+
+  // Our own browserify-based tasks to build a single JS file build.
+  grunt.registerMultiTask('browserify', require('./grunt/tasks/browserify'));
+
+  grunt.registerMultiTask('npm', require('./grunt/tasks/npm'));
+
+  var npmReactTasks = require('./grunt/tasks/npm-react');
+  grunt.registerTask('npm-react:release', npmReactTasks.buildRelease);
+  grunt.registerTask('npm-react:pack', npmReactTasks.packRelease);
+
+  var npmReactDOMTasks = require('./grunt/tasks/npm-react-dom');
+  grunt.registerTask('npm-react-dom:release', npmReactDOMTasks.buildRelease);
+  grunt.registerTask('npm-react-dom:pack', npmReactDOMTasks.packRelease);
+
+  var npmReactTestRendererTasks = require('./grunt/tasks/npm-react-test');
+  grunt.registerTask('npm-react-test:release', npmReactTestRendererTasks.buildRelease);
+  grunt.registerTask('npm-react-test:pack', npmReactTestRendererTasks.packRelease);
+
+  grunt.registerTask('version-check', function() {
+    // Use gulp here.
+    spawnGulp(['version-check'], null, this.async());
+  });
+
+  grunt.registerTask('build:basic', [
+    'build-modules',
+    'version-check',
+    'browserify:basic',
+  ]);
+  grunt.registerTask('build:addons', [
+    'build-modules',
+    'browserify:addons',
+  ]);
+  grunt.registerTask('build:min', [
+    'build-modules',
+    'version-check',
+    'browserify:min',
+  ]);
+  grunt.registerTask('build:addons-min', [
+    'build-modules',
+    'browserify:addonsMin',
+  ]);
+  grunt.registerTask('build:dom', [
+    'build-modules',
+    'version-check',
+    'browserify:dom',
+  ]);
+  grunt.registerTask('build:dom-min', [
+    'build-modules',
+    'version-check',
+    'browserify:domMin',
+  ]);
+  grunt.registerTask('build:dom-server', [
+    'build-modules',
+    'version-check',
+    'browserify:domServer',
+  ]);
+  grunt.registerTask('build:dom-server-min', [
+    'build-modules',
+    'version-check',
+    'browserify:domServerMin',
+  ]);
+  grunt.registerTask('build:dom-fiber', [
+    'build-modules',
+    'version-check',
+    'browserify:domFiber',
+  ]);
+  grunt.registerTask('build:dom-fiber-min', [
+    'build-modules',
+    'version-check',
+    'browserify:domFiberMin',
+  ]);
+  grunt.registerTask('build:npm-react', [
+    'version-check',
+    'build-modules',
+    'npm-react:release',
+  ]);
+
+  var jestTasks = require('./grunt/tasks/jest');
+  grunt.registerTask('jest:normal', jestTasks.normal);
+  grunt.registerTask('jest:coverage', jestTasks.coverage);
+
+  grunt.registerTask('test', ['jest:normal']);
+  grunt.registerTask('npm:test', ['build', 'npm:pack']);
+
+  // Optimized build task that does all of our builds. The subtasks will be run
+  // in order so we can take advantage of that and only run build-modules once.
+  grunt.registerTask('build', [
+    'delete-build-modules',
+    'build-modules',
+    'version-check',
+    'browserify:basic',
+    'browserify:addons',
+    'browserify:min',
+    'browserify:addonsMin',
+    'browserify:dom',
+    'browserify:domMin',
+    'browserify:domServer',
+    'browserify:domServerMin',
+    'browserify:domFiber',
+    'browserify:domFiberMin',
+    'npm-react:release',
+    'npm-react:pack',
+    'npm-react-dom:release',
+    'npm-react-dom:pack',
+    'npm-react-test:release',
+    'npm-react-test:pack',
+    'compare_size',
+  ]);
+
+  // Automate the release!
+  var releaseTasks = require('./grunt/tasks/release');
+  grunt.registerTask('release:setup', releaseTasks.setup);
+  grunt.registerTask('release:bower', releaseTasks.bower);
+  grunt.registerTask('release:docs', releaseTasks.docs);
+  grunt.registerTask('release:msg', releaseTasks.msg);
+
+  grunt.registerTask('release', [
+    'release:setup',
+    'clean',
+    'build',
+    'release:bower',
+    'release:docs',
+    'release:msg',
+  ]);
+
+  grunt.registerTask('build-modules', function() {
+    spawnGulp(['react:modules'], null, this.async());
+  });
+
+  // The default task - build - to keep setup easy.
+  grunt.registerTask('default', ['build']);
+};

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) Facebook, Inc. and its affiliates.
+Copyright (c) 2013-present, Facebook, Inc.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

LICENSE-docs

@@ -0,0 +1,393 @@
+Attribution 4.0 International
+
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+                    designated);
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+
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+
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+          reasonably practicable.
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+Rights include other Copyright and Similar Rights.
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+Section 5 -- Disclaimer of Warranties and Limitation of Liability.
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+Section 6 -- Term and Termination.
+
+  a. This Public License applies for the term of the Copyright and
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+
+     For the avoidance of doubt, this Section 6(b) does not affect any
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+     of this Public License.
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+     Licensed Material under separate terms or conditions or stop
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+
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+=======================================================================
+
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+licenses.
+
+Creative Commons may be contacted at creativecommons.org.

LICENSE-examples

@@ -0,0 +1,9 @@
+The examples provided by Facebook are for non-commercial testing and evaluation
+purposes only. Facebook reserves all rights not expressly granted.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+FACEBOOK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -1,75 +1,65 @@
-# [React](https://reactjs.org/) · [![GitHub license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/facebook/react/blob/master/LICENSE) [![npm version](https://img.shields.io/npm/v/react.svg?style=flat)](https://www.npmjs.com/package/react) [![CircleCI Status](https://circleci.com/gh/facebook/react.svg?style=shield&circle-token=:circle-token)](https://circleci.com/gh/facebook/react) [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://reactjs.org/docs/how-to-contribute.html#your-first-pull-request)
+# [React](https://facebook.github.io/react/) [![Build Status](https://img.shields.io/travis/facebook/react/master.svg?style=flat)](https://travis-ci.org/facebook/react) [![Coverage Status](https://img.shields.io/coveralls/facebook/react/master.svg?style=flat)](https://coveralls.io/github/facebook/react?branch=master) [![npm version](https://img.shields.io/npm/v/react.svg?style=flat)](https://www.npmjs.com/package/react) [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](CONTRIBUTING.md#pull-requests)
 
 React is a JavaScript library for building user interfaces.
 
 * **Declarative:** React makes it painless to create interactive UIs. Design simple views for each state in your application, and React will efficiently update and render just the right components when your data changes. Declarative views make your code more predictable, simpler to understand, and easier to debug.
 * **Component-Based:** Build encapsulated components that manage their own state, then compose them to make complex UIs. Since component logic is written in JavaScript instead of templates, you can easily pass rich data through your app and keep state out of the DOM.
-* **Learn Once, Write Anywhere:** We don't make assumptions about the rest of your technology stack, so you can develop new features in React without rewriting existing code. React can also render on the server using Node and power mobile apps using [React Native](https://reactnative.dev/).
+* **Learn Once, Write Anywhere:** We don't make assumptions about the rest of your technology stack, so you can develop new features in React without rewriting existing code. React can also render on the server using Node and power mobile apps using [React Native](https://facebook.github.io/react-native/).
 
-[Learn how to use React in your own project](https://reactjs.org/docs/getting-started.html).
-
-## Installation
-
-React has been designed for gradual adoption from the start, and **you can use as little or as much React as you need**:
-
-* Use [Online Playgrounds](https://reactjs.org/docs/getting-started.html#online-playgrounds) to get a taste of React.
-* [Add React to a Website](https://reactjs.org/docs/add-react-to-a-website.html) as a `<script>` tag in one minute.
-* [Create a New React App](https://reactjs.org/docs/create-a-new-react-app.html) if you're looking for a powerful JavaScript toolchain.
-
-You can use React as a `<script>` tag from a [CDN](https://reactjs.org/docs/cdn-links.html), or as a `react` package on [npm](https://www.npmjs.com/package/react).
-
-## Documentation
-
-You can find the React documentation [on the website](https://reactjs.org/docs).  
-
-Check out the [Getting Started](https://reactjs.org/docs/getting-started.html) page for a quick overview.
-
-The documentation is divided into several sections:
-
-* [Tutorial](https://reactjs.org/tutorial/tutorial.html)
-* [Main Concepts](https://reactjs.org/docs/hello-world.html)
-* [Advanced Guides](https://reactjs.org/docs/jsx-in-depth.html)
-* [API Reference](https://reactjs.org/docs/react-api.html)
-* [Where to Get Support](https://reactjs.org/community/support.html)
-* [Contributing Guide](https://reactjs.org/docs/how-to-contribute.html)
-
-You can improve it by sending pull requests to [this repository](https://github.com/reactjs/reactjs.org).
+[Learn how to use React in your own project](https://facebook.github.io/react/docs/getting-started.html).
 
 ## Examples
 
-We have several examples [on the website](https://reactjs.org/). Here is the first one to get you started:
+We have several examples [on the website](https://facebook.github.io/react/). Here is the first one to get you started:
 
-```jsx
-function HelloMessage({ name }) {
-  return <div>Hello {name}</div>;
+```js
+class HelloMessage extends React.Component {
+  render() {
+    return <div>Hello {this.props.name}</div>;
+  }
 }
 
 ReactDOM.render(
-  <HelloMessage name="Taylor" />,
+  <HelloMessage name="John" />,
   document.getElementById('container')
 );
 ```
 
-This example will render "Hello Taylor" into a container on the page.
+This example will render "Hello John" into a container on the page.
 
-You'll notice that we used an HTML-like syntax; [we call it JSX](https://reactjs.org/docs/introducing-jsx.html). JSX is not required to use React, but it makes code more readable, and writing it feels like writing HTML. If you're using React as a `<script>` tag, read [this section](https://reactjs.org/docs/add-react-to-a-website.html#optional-try-react-with-jsx) on integrating JSX; otherwise, the [recommended JavaScript toolchains](https://reactjs.org/docs/create-a-new-react-app.html) handle it automatically.
+You'll notice that we used an HTML-like syntax; [we call it JSX](https://facebook.github.io/react/docs/introducing-jsx.html). JSX is not required to use React, but it makes code more readable, and writing it feels like writing HTML. We recommend using [Babel](https://babeljs.io/) with a [React preset](https://babeljs.io/docs/plugins/preset-react/) to convert JSX into native JavaScript for browsers to digest.
+
+## Installation
+
+React is available as the `react` package on [npm](https://www.npmjs.com/). It is also available on a [CDN](https://facebook.github.io/react/docs/installation.html#using-a-cdn).
+
+React is flexible and can be used in a variety of projects. You can create new apps with it, but you can also gradually introduce it into an existing codebase without doing a rewrite.
+
+The recommended way to install React depends on your project. Here you can find short guides for the most common scenarios:
+
+* [Trying Out React](https://facebook.github.io/react/docs/installation.html#trying-out-react)
+* [Creating a Single Page Application](https://facebook.github.io/react/docs/installation.html#creating-a-single-page-application)
+* [Adding React to an Existing Application](https://facebook.github.io/react/docs/installation.html#adding-react-to-an-existing-application)
 
 ## Contributing
 
-The main purpose of this repository is to continue to evolve React core, making it faster and easier to use. Development of React happens in the open on GitHub, and we are grateful to the community for contributing bugfixes and improvements. Read below to learn how you can take part in improving React.
+The main purpose of this repository is to continue to evolve React core, making it faster and easier to use. If you're interested in helping with that, check out our [contribution guide](https://facebook.github.io/react/contributing/how-to-contribute.html).
 
-### [Code of Conduct](https://code.fb.com/codeofconduct)
+### [Code of Conduct](https://code.facebook.com/codeofconduct)
 
-Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please read [the full text](https://code.fb.com/codeofconduct) so that you can understand what actions will and will not be tolerated.
+Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please read [the full text](https://code.facebook.com/codeofconduct) so that you can understand what actions will and will not be tolerated.
 
-### [Contributing Guide](https://reactjs.org/contributing/how-to-contribute.html)
+### Good First Bug
 
-Read our [contributing guide](https://reactjs.org/contributing/how-to-contribute.html) to learn about our development process, how to propose bugfixes and improvements, and how to build and test your changes to React.
-
-### Good First Issues
-
-To help you get your feet wet and get you familiar with our contribution process, we have a list of [good first issues](https://github.com/facebook/react/labels/good%20first%20issue) that contain bugs which have a relatively limited scope. This is a great place to get started.
+To help you get your feet wet and get you familiar with our contribution process, we have a list of [good first bugs](https://github.com/facebook/react/labels/good%20first%20bug) that contain bugs which are fairly easy to fix. This is a great place to get started.
 
 ### License
 
 React is [MIT licensed](./LICENSE).
+
+React documentation is [Creative Commons licensed](./LICENSE-docs).
+
+Examples provided in this repository and in the documentation are [separately licensed](./LICENSE-examples).
+
+## Troubleshooting
+See the [Troubleshooting Guide](https://github.com/facebook/react/wiki/Troubleshooting)

SECURITY.md

@@ -1,7 +0,0 @@
-# Reporting Security Issues
-
-If you believe you have found a security vulnerability in React, we encourage you to let us know right away. We will investigate all legitimate reports and do our best to quickly fix the problem.
-
-Please refer to the following page for our responsible disclosure policy, reward guidelines, and those things that should not be reported:
-
-https://www.facebook.com/whitehat

addons/.eslintrc

@@ -0,0 +1,5 @@
+{
+  "rules": {
+    "comma-dangle": 0
+  }
+}

addons/create-react-class/.gitignore

@@ -0,0 +1,2 @@
+create-react-class.js
+create-react-class.min.js

addons/create-react-class/LICENSE.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present, Facebook, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/create-react-class/README.md

@@ -0,0 +1,5 @@
+# create-react-class
+
+A drop-in replacement for `React.createClass`.
+
+Refer to the [React documentation](https://facebook.github.io/react/docs/react-without-es6.html) for more information.

addons/create-react-class/factory.js

@@ -0,0 +1,870 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+'use strict';
+
+var _assign = require('object-assign');
+
+var emptyObject = require('fbjs/lib/emptyObject');
+var _invariant = require('fbjs/lib/invariant');
+
+if (process.env.NODE_ENV !== 'production') {
+  var warning = require('fbjs/lib/warning');
+}
+
+var MIXINS_KEY = 'mixins';
+
+// Helper function to allow the creation of anonymous functions which do not
+// have .name set to the name of the variable being assigned to.
+function identity(fn) {
+  return fn;
+}
+
+var ReactPropTypeLocationNames;
+if (process.env.NODE_ENV !== 'production') {
+  ReactPropTypeLocationNames = {
+    prop: 'prop',
+    context: 'context',
+    childContext: 'child context'
+  };
+} else {
+  ReactPropTypeLocationNames = {};
+}
+
+function factory(ReactComponent, isValidElement, ReactNoopUpdateQueue) {
+  /**
+   * Policies that describe methods in `ReactClassInterface`.
+   */
+
+  var injectedMixins = [];
+
+  /**
+   * Composite components are higher-level components that compose other composite
+   * or host components.
+   *
+   * To create a new type of `ReactClass`, pass a specification of
+   * your new class to `React.createClass`. The only requirement of your class
+   * specification is that you implement a `render` method.
+   *
+   *   var MyComponent = React.createClass({
+   *     render: function() {
+   *       return <div>Hello World</div>;
+   *     }
+   *   });
+   *
+   * The class specification supports a specific protocol of methods that have
+   * special meaning (e.g. `render`). See `ReactClassInterface` for
+   * more the comprehensive protocol. Any other properties and methods in the
+   * class specification will be available on the prototype.
+   *
+   * @interface ReactClassInterface
+   * @internal
+   */
+  var ReactClassInterface = {
+    /**
+     * An array of Mixin objects to include when defining your component.
+     *
+     * @type {array}
+     * @optional
+     */
+    mixins: 'DEFINE_MANY',
+
+    /**
+     * An object containing properties and methods that should be defined on
+     * the component's constructor instead of its prototype (static methods).
+     *
+     * @type {object}
+     * @optional
+     */
+    statics: 'DEFINE_MANY',
+
+    /**
+     * Definition of prop types for this component.
+     *
+     * @type {object}
+     * @optional
+     */
+    propTypes: 'DEFINE_MANY',
+
+    /**
+     * Definition of context types for this component.
+     *
+     * @type {object}
+     * @optional
+     */
+    contextTypes: 'DEFINE_MANY',
+
+    /**
+     * Definition of context types this component sets for its children.
+     *
+     * @type {object}
+     * @optional
+     */
+    childContextTypes: 'DEFINE_MANY',
+
+    // ==== Definition methods ====
+
+    /**
+     * Invoked when the component is mounted. Values in the mapping will be set on
+     * `this.props` if that prop is not specified (i.e. using an `in` check).
+     *
+     * This method is invoked before `getInitialState` and therefore cannot rely
+     * on `this.state` or use `this.setState`.
+     *
+     * @return {object}
+     * @optional
+     */
+    getDefaultProps: 'DEFINE_MANY_MERGED',
+
+    /**
+     * Invoked once before the component is mounted. The return value will be used
+     * as the initial value of `this.state`.
+     *
+     *   getInitialState: function() {
+     *     return {
+     *       isOn: false,
+     *       fooBaz: new BazFoo()
+     *     }
+     *   }
+     *
+     * @return {object}
+     * @optional
+     */
+    getInitialState: 'DEFINE_MANY_MERGED',
+
+    /**
+     * @return {object}
+     * @optional
+     */
+    getChildContext: 'DEFINE_MANY_MERGED',
+
+    /**
+     * Uses props from `this.props` and state from `this.state` to render the
+     * structure of the component.
+     *
+     * No guarantees are made about when or how often this method is invoked, so
+     * it must not have side effects.
+     *
+     *   render: function() {
+     *     var name = this.props.name;
+     *     return <div>Hello, {name}!</div>;
+     *   }
+     *
+     * @return {ReactComponent}
+     * @required
+     */
+    render: 'DEFINE_ONCE',
+
+    // ==== Delegate methods ====
+
+    /**
+     * Invoked when the component is initially created and about to be mounted.
+     * This may have side effects, but any external subscriptions or data created
+     * by this method must be cleaned up in `componentWillUnmount`.
+     *
+     * @optional
+     */
+    componentWillMount: 'DEFINE_MANY',
+
+    /**
+     * Invoked when the component has been mounted and has a DOM representation.
+     * However, there is no guarantee that the DOM node is in the document.
+     *
+     * Use this as an opportunity to operate on the DOM when the component has
+     * been mounted (initialized and rendered) for the first time.
+     *
+     * @param {DOMElement} rootNode DOM element representing the component.
+     * @optional
+     */
+    componentDidMount: 'DEFINE_MANY',
+
+    /**
+     * Invoked before the component receives new props.
+     *
+     * Use this as an opportunity to react to a prop transition by updating the
+     * state using `this.setState`. Current props are accessed via `this.props`.
+     *
+     *   componentWillReceiveProps: function(nextProps, nextContext) {
+     *     this.setState({
+     *       likesIncreasing: nextProps.likeCount > this.props.likeCount
+     *     });
+     *   }
+     *
+     * NOTE: There is no equivalent `componentWillReceiveState`. An incoming prop
+     * transition may cause a state change, but the opposite is not true. If you
+     * need it, you are probably looking for `componentWillUpdate`.
+     *
+     * @param {object} nextProps
+     * @optional
+     */
+    componentWillReceiveProps: 'DEFINE_MANY',
+
+    /**
+     * Invoked while deciding if the component should be updated as a result of
+     * receiving new props, state and/or context.
+     *
+     * Use this as an opportunity to `return false` when you're certain that the
+     * transition to the new props/state/context will not require a component
+     * update.
+     *
+     *   shouldComponentUpdate: function(nextProps, nextState, nextContext) {
+     *     return !equal(nextProps, this.props) ||
+     *       !equal(nextState, this.state) ||
+     *       !equal(nextContext, this.context);
+     *   }
+     *
+     * @param {object} nextProps
+     * @param {?object} nextState
+     * @param {?object} nextContext
+     * @return {boolean} True if the component should update.
+     * @optional
+     */
+    shouldComponentUpdate: 'DEFINE_ONCE',
+
+    /**
+     * Invoked when the component is about to update due to a transition from
+     * `this.props`, `this.state` and `this.context` to `nextProps`, `nextState`
+     * and `nextContext`.
+     *
+     * Use this as an opportunity to perform preparation before an update occurs.
+     *
+     * NOTE: You **cannot** use `this.setState()` in this method.
+     *
+     * @param {object} nextProps
+     * @param {?object} nextState
+     * @param {?object} nextContext
+     * @param {ReactReconcileTransaction} transaction
+     * @optional
+     */
+    componentWillUpdate: 'DEFINE_MANY',
+
+    /**
+     * Invoked when the component's DOM representation has been updated.
+     *
+     * Use this as an opportunity to operate on the DOM when the component has
+     * been updated.
+     *
+     * @param {object} prevProps
+     * @param {?object} prevState
+     * @param {?object} prevContext
+     * @param {DOMElement} rootNode DOM element representing the component.
+     * @optional
+     */
+    componentDidUpdate: 'DEFINE_MANY',
+
+    /**
+     * Invoked when the component is about to be removed from its parent and have
+     * its DOM representation destroyed.
+     *
+     * Use this as an opportunity to deallocate any external resources.
+     *
+     * NOTE: There is no `componentDidUnmount` since your component will have been
+     * destroyed by that point.
+     *
+     * @optional
+     */
+    componentWillUnmount: 'DEFINE_MANY',
+
+    // ==== Advanced methods ====
+
+    /**
+     * Updates the component's currently mounted DOM representation.
+     *
+     * By default, this implements React's rendering and reconciliation algorithm.
+     * Sophisticated clients may wish to override this.
+     *
+     * @param {ReactReconcileTransaction} transaction
+     * @internal
+     * @overridable
+     */
+    updateComponent: 'OVERRIDE_BASE'
+  };
+
+  /**
+   * Mapping from class specification keys to special processing functions.
+   *
+   * Although these are declared like instance properties in the specification
+   * when defining classes using `React.createClass`, they are actually static
+   * and are accessible on the constructor instead of the prototype. Despite
+   * being static, they must be defined outside of the "statics" key under
+   * which all other static methods are defined.
+   */
+  var RESERVED_SPEC_KEYS = {
+    displayName: function(Constructor, displayName) {
+      Constructor.displayName = displayName;
+    },
+    mixins: function(Constructor, mixins) {
+      if (mixins) {
+        for (var i = 0; i < mixins.length; i++) {
+          mixSpecIntoComponent(Constructor, mixins[i]);
+        }
+      }
+    },
+    childContextTypes: function(Constructor, childContextTypes) {
+      if (process.env.NODE_ENV !== 'production') {
+        validateTypeDef(Constructor, childContextTypes, 'childContext');
+      }
+      Constructor.childContextTypes = _assign(
+        {},
+        Constructor.childContextTypes,
+        childContextTypes
+      );
+    },
+    contextTypes: function(Constructor, contextTypes) {
+      if (process.env.NODE_ENV !== 'production') {
+        validateTypeDef(Constructor, contextTypes, 'context');
+      }
+      Constructor.contextTypes = _assign(
+        {},
+        Constructor.contextTypes,
+        contextTypes
+      );
+    },
+    /**
+     * Special case getDefaultProps which should move into statics but requires
+     * automatic merging.
+     */
+    getDefaultProps: function(Constructor, getDefaultProps) {
+      if (Constructor.getDefaultProps) {
+        Constructor.getDefaultProps = createMergedResultFunction(
+          Constructor.getDefaultProps,
+          getDefaultProps
+        );
+      } else {
+        Constructor.getDefaultProps = getDefaultProps;
+      }
+    },
+    propTypes: function(Constructor, propTypes) {
+      if (process.env.NODE_ENV !== 'production') {
+        validateTypeDef(Constructor, propTypes, 'prop');
+      }
+      Constructor.propTypes = _assign({}, Constructor.propTypes, propTypes);
+    },
+    statics: function(Constructor, statics) {
+      mixStaticSpecIntoComponent(Constructor, statics);
+    },
+    autobind: function() {}
+  };
+
+  function validateTypeDef(Constructor, typeDef, location) {
+    for (var propName in typeDef) {
+      if (typeDef.hasOwnProperty(propName)) {
+        // use a warning instead of an _invariant so components
+        // don't show up in prod but only in __DEV__
+        if (process.env.NODE_ENV !== 'production') {
+          warning(
+            typeof typeDef[propName] === 'function',
+            '%s: %s type `%s` is invalid; it must be a function, usually from ' +
+              'React.PropTypes.',
+            Constructor.displayName || 'ReactClass',
+            ReactPropTypeLocationNames[location],
+            propName
+          );
+        }
+      }
+    }
+  }
+
+  function validateMethodOverride(isAlreadyDefined, name) {
+    var specPolicy = ReactClassInterface.hasOwnProperty(name)
+      ? ReactClassInterface[name]
+      : null;
+
+    // Disallow overriding of base class methods unless explicitly allowed.
+    if (ReactClassMixin.hasOwnProperty(name)) {
+      _invariant(
+        specPolicy === 'OVERRIDE_BASE',
+        'ReactClassInterface: You are attempting to override ' +
+          '`%s` from your class specification. Ensure that your method names ' +
+          'do not overlap with React methods.',
+        name
+      );
+    }
+
+    // Disallow defining methods more than once unless explicitly allowed.
+    if (isAlreadyDefined) {
+      _invariant(
+        specPolicy === 'DEFINE_MANY' || specPolicy === 'DEFINE_MANY_MERGED',
+        'ReactClassInterface: You are attempting to define ' +
+          '`%s` on your component more than once. This conflict may be due ' +
+          'to a mixin.',
+        name
+      );
+    }
+  }
+
+  /**
+   * Mixin helper which handles policy validation and reserved
+   * specification keys when building React classes.
+   */
+  function mixSpecIntoComponent(Constructor, spec) {
+    if (!spec) {
+      if (process.env.NODE_ENV !== 'production') {
+        var typeofSpec = typeof spec;
+        var isMixinValid = typeofSpec === 'object' && spec !== null;
+
+        if (process.env.NODE_ENV !== 'production') {
+          warning(
+            isMixinValid,
+            "%s: You're attempting to include a mixin that is either null " +
+              'or not an object. Check the mixins included by the component, ' +
+              'as well as any mixins they include themselves. ' +
+              'Expected object but got %s.',
+            Constructor.displayName || 'ReactClass',
+            spec === null ? null : typeofSpec
+          );
+        }
+      }
+
+      return;
+    }
+
+    _invariant(
+      typeof spec !== 'function',
+      "ReactClass: You're attempting to " +
+        'use a component class or function as a mixin. Instead, just use a ' +
+        'regular object.'
+    );
+    _invariant(
+      !isValidElement(spec),
+      "ReactClass: You're attempting to " +
+        'use a component as a mixin. Instead, just use a regular object.'
+    );
+
+    var proto = Constructor.prototype;
+    var autoBindPairs = proto.__reactAutoBindPairs;
+
+    // By handling mixins before any other properties, we ensure the same
+    // chaining order is applied to methods with DEFINE_MANY policy, whether
+    // mixins are listed before or after these methods in the spec.
+    if (spec.hasOwnProperty(MIXINS_KEY)) {
+      RESERVED_SPEC_KEYS.mixins(Constructor, spec.mixins);
+    }
+
+    for (var name in spec) {
+      if (!spec.hasOwnProperty(name)) {
+        continue;
+      }
+
+      if (name === MIXINS_KEY) {
+        // We have already handled mixins in a special case above.
+        continue;
+      }
+
+      var property = spec[name];
+      var isAlreadyDefined = proto.hasOwnProperty(name);
+      validateMethodOverride(isAlreadyDefined, name);
+
+      if (RESERVED_SPEC_KEYS.hasOwnProperty(name)) {
+        RESERVED_SPEC_KEYS[name](Constructor, property);
+      } else {
+        // Setup methods on prototype:
+        // The following member methods should not be automatically bound:
+        // 1. Expected ReactClass methods (in the "interface").
+        // 2. Overridden methods (that were mixed in).
+        var isReactClassMethod = ReactClassInterface.hasOwnProperty(name);
+        var isFunction = typeof property === 'function';
+        var shouldAutoBind =
+          isFunction &&
+          !isReactClassMethod &&
+          !isAlreadyDefined &&
+          spec.autobind !== false;
+
+        if (shouldAutoBind) {
+          autoBindPairs.push(name, property);
+          proto[name] = property;
+        } else {
+          if (isAlreadyDefined) {
+            var specPolicy = ReactClassInterface[name];
+
+            // These cases should already be caught by validateMethodOverride.
+            _invariant(
+              isReactClassMethod &&
+                (specPolicy === 'DEFINE_MANY_MERGED' ||
+                  specPolicy === 'DEFINE_MANY'),
+              'ReactClass: Unexpected spec policy %s for key %s ' +
+                'when mixing in component specs.',
+              specPolicy,
+              name
+            );
+
+            // For methods which are defined more than once, call the existing
+            // methods before calling the new property, merging if appropriate.
+            if (specPolicy === 'DEFINE_MANY_MERGED') {
+              proto[name] = createMergedResultFunction(proto[name], property);
+            } else if (specPolicy === 'DEFINE_MANY') {
+              proto[name] = createChainedFunction(proto[name], property);
+            }
+          } else {
+            proto[name] = property;
+            if (process.env.NODE_ENV !== 'production') {
+              // Add verbose displayName to the function, which helps when looking
+              // at profiling tools.
+              if (typeof property === 'function' && spec.displayName) {
+                proto[name].displayName = spec.displayName + '_' + name;
+              }
+            }
+          }
+        }
+      }
+    }
+  }
+
+  function mixStaticSpecIntoComponent(Constructor, statics) {
+    if (!statics) {
+      return;
+    }
+    for (var name in statics) {
+      var property = statics[name];
+      if (!statics.hasOwnProperty(name)) {
+        continue;
+      }
+
+      var isReserved = name in RESERVED_SPEC_KEYS;
+      _invariant(
+        !isReserved,
+        'ReactClass: You are attempting to define a reserved ' +
+          'property, `%s`, that shouldn\'t be on the "statics" key. Define it ' +
+          'as an instance property instead; it will still be accessible on the ' +
+          'constructor.',
+        name
+      );
+
+      var isInherited = name in Constructor;
+      _invariant(
+        !isInherited,
+        'ReactClass: You are attempting to define ' +
+          '`%s` on your component more than once. This conflict may be ' +
+          'due to a mixin.',
+        name
+      );
+      Constructor[name] = property;
+    }
+  }
+
+  /**
+   * Merge two objects, but throw if both contain the same key.
+   *
+   * @param {object} one The first object, which is mutated.
+   * @param {object} two The second object
+   * @return {object} one after it has been mutated to contain everything in two.
+   */
+  function mergeIntoWithNoDuplicateKeys(one, two) {
+    _invariant(
+      one && two && typeof one === 'object' && typeof two === 'object',
+      'mergeIntoWithNoDuplicateKeys(): Cannot merge non-objects.'
+    );
+
+    for (var key in two) {
+      if (two.hasOwnProperty(key)) {
+        _invariant(
+          one[key] === undefined,
+          'mergeIntoWithNoDuplicateKeys(): ' +
+            'Tried to merge two objects with the same key: `%s`. This conflict ' +
+            'may be due to a mixin; in particular, this may be caused by two ' +
+            'getInitialState() or getDefaultProps() methods returning objects ' +
+            'with clashing keys.',
+          key
+        );
+        one[key] = two[key];
+      }
+    }
+    return one;
+  }
+
+  /**
+   * Creates a function that invokes two functions and merges their return values.
+   *
+   * @param {function} one Function to invoke first.
+   * @param {function} two Function to invoke second.
+   * @return {function} Function that invokes the two argument functions.
+   * @private
+   */
+  function createMergedResultFunction(one, two) {
+    return function mergedResult() {
+      var a = one.apply(this, arguments);
+      var b = two.apply(this, arguments);
+      if (a == null) {
+        return b;
+      } else if (b == null) {
+        return a;
+      }
+      var c = {};
+      mergeIntoWithNoDuplicateKeys(c, a);
+      mergeIntoWithNoDuplicateKeys(c, b);
+      return c;
+    };
+  }
+
+  /**
+   * Creates a function that invokes two functions and ignores their return vales.
+   *
+   * @param {function} one Function to invoke first.
+   * @param {function} two Function to invoke second.
+   * @return {function} Function that invokes the two argument functions.
+   * @private
+   */
+  function createChainedFunction(one, two) {
+    return function chainedFunction() {
+      one.apply(this, arguments);
+      two.apply(this, arguments);
+    };
+  }
+
+  /**
+   * Binds a method to the component.
+   *
+   * @param {object} component Component whose method is going to be bound.
+   * @param {function} method Method to be bound.
+   * @return {function} The bound method.
+   */
+  function bindAutoBindMethod(component, method) {
+    var boundMethod = method.bind(component);
+    if (process.env.NODE_ENV !== 'production') {
+      boundMethod.__reactBoundContext = component;
+      boundMethod.__reactBoundMethod = method;
+      boundMethod.__reactBoundArguments = null;
+      var componentName = component.constructor.displayName;
+      var _bind = boundMethod.bind;
+      boundMethod.bind = function(newThis) {
+        for (
+          var _len = arguments.length,
+            args = Array(_len > 1 ? _len - 1 : 0),
+            _key = 1;
+          _key < _len;
+          _key++
+        ) {
+          args[_key - 1] = arguments[_key];
+        }
+
+        // User is trying to bind() an autobound method; we effectively will
+        // ignore the value of "this" that the user is trying to use, so
+        // let's warn.
+        if (newThis !== component && newThis !== null) {
+          if (process.env.NODE_ENV !== 'production') {
+            warning(
+              false,
+              'bind(): React component methods may only be bound to the ' +
+                'component instance. See %s',
+              componentName
+            );
+          }
+        } else if (!args.length) {
+          if (process.env.NODE_ENV !== 'production') {
+            warning(
+              false,
+              'bind(): You are binding a component method to the component. ' +
+                'React does this for you automatically in a high-performance ' +
+                'way, so you can safely remove this call. See %s',
+              componentName
+            );
+          }
+          return boundMethod;
+        }
+        var reboundMethod = _bind.apply(boundMethod, arguments);
+        reboundMethod.__reactBoundContext = component;
+        reboundMethod.__reactBoundMethod = method;
+        reboundMethod.__reactBoundArguments = args;
+        return reboundMethod;
+      };
+    }
+    return boundMethod;
+  }
+
+  /**
+   * Binds all auto-bound methods in a component.
+   *
+   * @param {object} component Component whose method is going to be bound.
+   */
+  function bindAutoBindMethods(component) {
+    var pairs = component.__reactAutoBindPairs;
+    for (var i = 0; i < pairs.length; i += 2) {
+      var autoBindKey = pairs[i];
+      var method = pairs[i + 1];
+      component[autoBindKey] = bindAutoBindMethod(component, method);
+    }
+  }
+
+  var IsMountedPreMixin = {
+    componentDidMount: function() {
+      this.__isMounted = true;
+    }
+  };
+
+  var IsMountedPostMixin = {
+    componentWillUnmount: function() {
+      this.__isMounted = false;
+    }
+  };
+
+  /**
+   * Add more to the ReactClass base class. These are all legacy features and
+   * therefore not already part of the modern ReactComponent.
+   */
+  var ReactClassMixin = {
+    /**
+     * TODO: This will be deprecated because state should always keep a consistent
+     * type signature and the only use case for this, is to avoid that.
+     */
+    replaceState: function(newState, callback) {
+      this.updater.enqueueReplaceState(this, newState, callback);
+    },
+
+    /**
+     * Checks whether or not this composite component is mounted.
+     * @return {boolean} True if mounted, false otherwise.
+     * @protected
+     * @final
+     */
+    isMounted: function() {
+      if (process.env.NODE_ENV !== 'production') {
+        warning(
+          this.__didWarnIsMounted,
+          '%s: isMounted is deprecated. Instead, make sure to clean up ' +
+            'subscriptions and pending requests in componentWillUnmount to ' +
+            'prevent memory leaks.',
+          (this.constructor && this.constructor.displayName) ||
+            this.name ||
+            'Component'
+        );
+        this.__didWarnIsMounted = true;
+      }
+      return !!this.__isMounted;
+    }
+  };
+
+  var ReactClassComponent = function() {};
+  _assign(
+    ReactClassComponent.prototype,
+    ReactComponent.prototype,
+    ReactClassMixin
+  );
+
+  /**
+   * Creates a composite component class given a class specification.
+   * See https://facebook.github.io/react/docs/top-level-api.html#react.createclass
+   *
+   * @param {object} spec Class specification (which must define `render`).
+   * @return {function} Component constructor function.
+   * @public
+   */
+  function createClass(spec) {
+    // To keep our warnings more understandable, we'll use a little hack here to
+    // ensure that Constructor.name !== 'Constructor'. This makes sure we don't
+    // unnecessarily identify a class without displayName as 'Constructor'.
+    var Constructor = identity(function(props, context, updater) {
+      // This constructor gets overridden by mocks. The argument is used
+      // by mocks to assert on what gets mounted.
+
+      if (process.env.NODE_ENV !== 'production') {
+        warning(
+          this instanceof Constructor,
+          'Something is calling a React component directly. Use a factory or ' +
+            'JSX instead. See: https://fb.me/react-legacyfactory'
+        );
+      }
+
+      // Wire up auto-binding
+      if (this.__reactAutoBindPairs.length) {
+        bindAutoBindMethods(this);
+      }
+
+      this.props = props;
+      this.context = context;
+      this.refs = emptyObject;
+      this.updater = updater || ReactNoopUpdateQueue;
+
+      this.state = null;
+
+      // ReactClasses doesn't have constructors. Instead, they use the
+      // getInitialState and componentWillMount methods for initialization.
+
+      var initialState = this.getInitialState ? this.getInitialState() : null;
+      if (process.env.NODE_ENV !== 'production') {
+        // We allow auto-mocks to proceed as if they're returning null.
+        if (
+          initialState === undefined &&
+          this.getInitialState._isMockFunction
+        ) {
+          // This is probably bad practice. Consider warning here and
+          // deprecating this convenience.
+          initialState = null;
+        }
+      }
+      _invariant(
+        typeof initialState === 'object' && !Array.isArray(initialState),
+        '%s.getInitialState(): must return an object or null',
+        Constructor.displayName || 'ReactCompositeComponent'
+      );
+
+      this.state = initialState;
+    });
+    Constructor.prototype = new ReactClassComponent();
+    Constructor.prototype.constructor = Constructor;
+    Constructor.prototype.__reactAutoBindPairs = [];
+
+    injectedMixins.forEach(mixSpecIntoComponent.bind(null, Constructor));
+
+    mixSpecIntoComponent(Constructor, IsMountedPreMixin);
+    mixSpecIntoComponent(Constructor, spec);
+    mixSpecIntoComponent(Constructor, IsMountedPostMixin);
+
+    // Initialize the defaultProps property after all mixins have been merged.
+    if (Constructor.getDefaultProps) {
+      Constructor.defaultProps = Constructor.getDefaultProps();
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      // This is a tag to indicate that the use of these method names is ok,
+      // since it's used with createClass. If it's not, then it's likely a
+      // mistake so we'll warn you to use the static property, property
+      // initializer or constructor respectively.
+      if (Constructor.getDefaultProps) {
+        Constructor.getDefaultProps.isReactClassApproved = {};
+      }
+      if (Constructor.prototype.getInitialState) {
+        Constructor.prototype.getInitialState.isReactClassApproved = {};
+      }
+    }
+
+    _invariant(
+      Constructor.prototype.render,
+      'createClass(...): Class specification must implement a `render` method.'
+    );
+
+    if (process.env.NODE_ENV !== 'production') {
+      warning(
+        !Constructor.prototype.componentShouldUpdate,
+        '%s has a method called ' +
+          'componentShouldUpdate(). Did you mean shouldComponentUpdate()? ' +
+          'The name is phrased as a question because the function is ' +
+          'expected to return a value.',
+        spec.displayName || 'A component'
+      );
+      warning(
+        !Constructor.prototype.componentWillRecieveProps,
+        '%s has a method called ' +
+          'componentWillRecieveProps(). Did you mean componentWillReceiveProps()?',
+        spec.displayName || 'A component'
+      );
+    }
+
+    // Reduce time spent doing lookups by setting these on the prototype.
+    for (var methodName in ReactClassInterface) {
+      if (!Constructor.prototype[methodName]) {
+        Constructor.prototype[methodName] = null;
+      }
+    }
+
+    return Constructor;
+  }
+
+  return createClass;
+}
+
+module.exports = factory;

addons/create-react-class/index.js

@@ -0,0 +1,28 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+'use strict';
+
+var React = require('react');
+var factory = require('./factory');
+
+if (typeof React === 'undefined') {
+  throw Error(
+    'create-react-class could not find the React object. If you are using script tags, ' +
+      'make sure that React is being loaded before create-react-class.'
+  );
+}
+
+// Hack to grab NoopUpdateQueue from isomorphic React
+var ReactNoopUpdateQueue = new React.Component().updater;
+
+module.exports = factory(
+  React.Component,
+  React.isValidElement,
+  ReactNoopUpdateQueue
+);

addons/create-react-class/package.json

@@ -0,0 +1,46 @@
+{
+  "name": "create-react-class",
+  "version": "15.6.2",
+  "description": "Legacy API for creating React components.",
+  "main": "index.js",
+  "license": "MIT",
+  "files": [
+    "LICENSE",
+    "factory.js",
+    "index.js",
+    "create-react-class.js",
+    "create-react-class.min.js"
+  ],
+  "repository": "facebook/react",
+  "keywords": [
+    "react"
+  ],
+  "bugs": {
+    "url": "https://github.com/facebook/react/issues"
+  },
+  "homepage": "https://facebook.github.io/react/",
+  "dependencies": {
+    "fbjs": "^0.8.9",
+    "loose-envify": "^1.3.1",
+    "object-assign": "^4.1.1"
+  },
+  "scripts": {
+    "test": "TEST_ENTRY=./index.js jest",
+    "build:dev": "NODE_ENV=development webpack && TEST_ENTRY=./create-react-class.js jest",
+    "build:prod": "NODE_ENV=production webpack && NODE_ENV=production TEST_ENTRY=./create-react-class.min.js jest",
+    "build": "npm run build:dev && npm run build:prod",
+    "prepublish": "npm test && npm run build"
+  },
+  "devDependencies": {
+    "jest": "^19.0.2",
+    "prop-types": "^15.5.10",
+    "react": "^15.5.4",
+    "react-dom": "^15.5.4",
+    "webpack": "^2.6.1"
+  },
+  "browserify": {
+    "transform": [
+      "loose-envify"
+    ]
+  }
+}

addons/create-react-class/test.js

@@ -0,0 +1,525 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+var PropTypes;
+var React;
+var ReactDOM;
+var createReactClass;
+
+// Catch stray warnings
+var env = jasmine.getEnv();
+var callCount = 0;
+var oldError = console.error;
+var newError = function() {
+  callCount++;
+  oldError.apply(this, arguments);
+};
+console.error = newError;
+env.beforeEach(() => {
+  callCount = 0;
+  jasmine.addMatchers({
+    toBeReset() {
+      return {
+        compare(actual) {
+          if (actual !== newError && !jasmine.isSpy(actual)) {
+            return {
+              pass: false,
+              message: 'Test did not tear down console.error mock properly.'
+            };
+          }
+          return {pass: true};
+        }
+      };
+    },
+    toNotHaveBeenCalled() {
+      return {
+        compare(actual) {
+          return {
+            pass: callCount === 0,
+            message:
+              'Expected test not to warn. If the warning is expected, mock ' +
+                "it out using spyOn(console, 'error'); and test that the " +
+                'warning occurs.'
+          };
+        }
+      };
+    }
+  });
+});
+env.afterEach(() => {
+  expect(console.error).toBeReset();
+  expect(console.error).toNotHaveBeenCalled();
+});
+
+// Suppress warning expectations for prod builds
+function suppressDevMatcher(obj, name) {
+  const original = obj[name];
+  obj[name] = function devMatcher() {
+    try {
+      original.apply(this, arguments);
+    } catch (e) {
+      // skip
+    }
+  };
+}
+function expectDev(actual) {
+  const expectation = expect(actual);
+  if (process.env.NODE_ENV === 'production') {
+    Object.keys(expectation).forEach(name => {
+      suppressDevMatcher(expectation, name);
+      suppressDevMatcher(expectation.not, name);
+    });
+  }
+  return expectation;
+}
+
+function renderIntoDocument(element) {
+  var node = document.createElement('div');
+  return ReactDOM.render(element, node);
+}
+
+describe('ReactClass-spec', () => {
+  beforeEach(() => {
+    PropTypes = require('prop-types');
+    React = require('react');
+    ReactDOM = require('react-dom');
+    createReactClass = require(process.env.TEST_ENTRY);
+  });
+
+  it('should throw when `render` is not specified', () => {
+    expect(function() {
+      createReactClass({});
+    }).toThrowError(
+      'createClass(...): Class specification must implement a `render` method.'
+    );
+  });
+
+  // TODO: Update babel-plugin-transform-react-display-name
+  xit('should copy `displayName` onto the Constructor', () => {
+    var TestComponent = createReactClass({
+      render: function() {
+        return <div />;
+      }
+    });
+
+    expect(TestComponent.displayName).toBe('TestComponent');
+  });
+
+  it('should copy prop types onto the Constructor', () => {
+    var propValidator = jest.fn();
+    var TestComponent = createReactClass({
+      propTypes: {
+        value: propValidator
+      },
+      render: function() {
+        return <div />;
+      }
+    });
+
+    expect(TestComponent.propTypes).toBeDefined();
+    expect(TestComponent.propTypes.value).toBe(propValidator);
+  });
+
+  it('should warn on invalid prop types', () => {
+    spyOn(console, 'error');
+    createReactClass({
+      displayName: 'Component',
+      propTypes: {
+        prop: null
+      },
+      render: function() {
+        return <span>{this.props.prop}</span>;
+      }
+    });
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toBe(
+      'Warning: Component: prop type `prop` is invalid; ' +
+        'it must be a function, usually from React.PropTypes.'
+    );
+  });
+
+  it('should warn on invalid context types', () => {
+    spyOn(console, 'error');
+    createReactClass({
+      displayName: 'Component',
+      contextTypes: {
+        prop: null
+      },
+      render: function() {
+        return <span>{this.props.prop}</span>;
+      }
+    });
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toBe(
+      'Warning: Component: context type `prop` is invalid; ' +
+        'it must be a function, usually from React.PropTypes.'
+    );
+  });
+
+  it('should throw on invalid child context types', () => {
+    spyOn(console, 'error');
+    createReactClass({
+      displayName: 'Component',
+      childContextTypes: {
+        prop: null
+      },
+      render: function() {
+        return <span>{this.props.prop}</span>;
+      }
+    });
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toBe(
+      'Warning: Component: child context type `prop` is invalid; ' +
+        'it must be a function, usually from React.PropTypes.'
+    );
+  });
+
+  it('should warn when mispelling shouldComponentUpdate', () => {
+    spyOn(console, 'error');
+
+    createReactClass({
+      componentShouldUpdate: function() {
+        return false;
+      },
+      render: function() {
+        return <div />;
+      }
+    });
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toBe(
+      'Warning: A component has a method called componentShouldUpdate(). Did you ' +
+        'mean shouldComponentUpdate()? The name is phrased as a question ' +
+        'because the function is expected to return a value.'
+    );
+
+    createReactClass({
+      displayName: 'NamedComponent',
+      componentShouldUpdate: function() {
+        return false;
+      },
+      render: function() {
+        return <div />;
+      }
+    });
+    expectDev(console.error.calls.count()).toBe(2);
+    expectDev(console.error.calls.argsFor(1)[0]).toBe(
+      'Warning: NamedComponent has a method called componentShouldUpdate(). Did you ' +
+        'mean shouldComponentUpdate()? The name is phrased as a question ' +
+        'because the function is expected to return a value.'
+    );
+  });
+
+  it('should warn when mispelling componentWillReceiveProps', () => {
+    spyOn(console, 'error');
+    createReactClass({
+      componentWillRecieveProps: function() {
+        return false;
+      },
+      render: function() {
+        return <div />;
+      }
+    });
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toBe(
+      'Warning: A component has a method called componentWillRecieveProps(). Did you ' +
+        'mean componentWillReceiveProps()?'
+    );
+  });
+
+  it('should throw if a reserved property is in statics', () => {
+    expect(function() {
+      createReactClass({
+        statics: {
+          getDefaultProps: function() {
+            return {
+              foo: 0
+            };
+          }
+        },
+
+        render: function() {
+          return <span />;
+        }
+      });
+    }).toThrowError(
+      'ReactClass: You are attempting to define a reserved property, ' +
+        '`getDefaultProps`, that shouldn\'t be on the "statics" key. Define ' +
+        'it as an instance property instead; it will still be accessible on ' +
+        'the constructor.'
+    );
+  });
+
+  // TODO: Consider actually moving these to statics or drop this unit test.
+  xit('should warn when using deprecated non-static spec keys', () => {
+    spyOn(console, 'error');
+    createReactClass({
+      mixins: [{}],
+      propTypes: {
+        foo: PropTypes.string
+      },
+      contextTypes: {
+        foo: PropTypes.string
+      },
+      childContextTypes: {
+        foo: PropTypes.string
+      },
+      render: function() {
+        return <div />;
+      }
+    });
+    expectDev(console.error.calls.count()).toBe(4);
+    expectDev(console.error.calls.argsFor(0)[0]).toBe(
+      'createClass(...): `mixins` is now a static property and should ' +
+        'be defined inside "statics".'
+    );
+    expectDev(console.error.calls.argsFor(1)[0]).toBe(
+      'createClass(...): `propTypes` is now a static property and should ' +
+        'be defined inside "statics".'
+    );
+    expectDev(console.error.calls.argsFor(2)[0]).toBe(
+      'createClass(...): `contextTypes` is now a static property and ' +
+        'should be defined inside "statics".'
+    );
+    expectDev(console.error.calls.argsFor(3)[0]).toBe(
+      'createClass(...): `childContextTypes` is now a static property and ' +
+        'should be defined inside "statics".'
+    );
+  });
+
+  it('should support statics', () => {
+    var Component = createReactClass({
+      statics: {
+        abc: 'def',
+        def: 0,
+        ghi: null,
+        jkl: 'mno',
+        pqr: function() {
+          return this;
+        }
+      },
+
+      render: function() {
+        return <span />;
+      }
+    });
+    var instance = <Component />;
+    instance = renderIntoDocument(instance);
+    expect(instance.constructor.abc).toBe('def');
+    expect(Component.abc).toBe('def');
+    expect(instance.constructor.def).toBe(0);
+    expect(Component.def).toBe(0);
+    expect(instance.constructor.ghi).toBe(null);
+    expect(Component.ghi).toBe(null);
+    expect(instance.constructor.jkl).toBe('mno');
+    expect(Component.jkl).toBe('mno');
+    expect(instance.constructor.pqr()).toBe(Component);
+    expect(Component.pqr()).toBe(Component);
+  });
+
+  it('should work with object getInitialState() return values', () => {
+    var Component = createReactClass({
+      getInitialState: function() {
+        return {
+          occupation: 'clown'
+        };
+      },
+      render: function() {
+        return <span />;
+      }
+    });
+    var instance = <Component />;
+    instance = renderIntoDocument(instance);
+    expect(instance.state.occupation).toEqual('clown');
+  });
+
+  it('renders based on context getInitialState', () => {
+    var Foo = createReactClass({
+      contextTypes: {
+        className: PropTypes.string
+      },
+      getInitialState() {
+        return {className: this.context.className};
+      },
+      render() {
+        return <span className={this.state.className} />;
+      }
+    });
+
+    var Outer = createReactClass({
+      childContextTypes: {
+        className: PropTypes.string
+      },
+      getChildContext() {
+        return {className: 'foo'};
+      },
+      render() {
+        return <Foo />;
+      }
+    });
+
+    var container = document.createElement('div');
+    ReactDOM.render(<Outer />, container);
+    expect(container.firstChild.className).toBe('foo');
+  });
+
+  it('should throw with non-object getInitialState() return values', () => {
+    spyOn(console, 'error');
+
+    [['an array'], 'a string', 1234].forEach(function(state) {
+      var Component = createReactClass({
+        getInitialState: function() {
+          return state;
+        },
+        render: function() {
+          return <span />;
+        }
+      });
+      var instance = <Component />;
+      expect(function() {
+        instance = renderIntoDocument(instance);
+      }).toThrowError(
+        'Component.getInitialState(): must return an object or null'
+      );
+    });
+  });
+
+  it('should work with a null getInitialState() return value', () => {
+    var Component = createReactClass({
+      getInitialState: function() {
+        return null;
+      },
+      render: function() {
+        return <span />;
+      }
+    });
+    expect(() => renderIntoDocument(<Component />)).not.toThrow();
+  });
+
+  it('should throw when using legacy factories', () => {
+    spyOn(console, 'error');
+    var Component = createReactClass({
+      render() {
+        return <div />;
+      }
+    });
+
+    expect(() => Component()).toThrow();
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toBe(
+      'Warning: Something is calling a React component directly. Use a ' +
+        'factory or JSX instead. See: https://fb.me/react-legacyfactory'
+    );
+  });
+
+  it('replaceState and callback works', () => {
+    var ops = [];
+    var Component = createReactClass({
+      getInitialState() {
+        return {step: 0};
+      },
+      render() {
+        ops.push('Render: ' + this.state.step);
+        return <div />;
+      }
+    });
+
+    var instance = renderIntoDocument(<Component />);
+    instance.replaceState({step: 1}, () => {
+      ops.push('Callback: ' + instance.state.step);
+    });
+    expect(ops).toEqual(['Render: 0', 'Render: 1', 'Callback: 1']);
+  });
+
+  it('isMounted works', () => {
+    spyOn(console, 'error');
+
+    var ops = [];
+    var instance;
+    var Component = createReactClass({
+      displayName: 'MyComponent',
+      mixins: [
+        {
+          componentWillMount() {
+            this.log('mixin.componentWillMount');
+          },
+          componentDidMount() {
+            this.log('mixin.componentDidMount');
+          },
+          componentWillUpdate() {
+            this.log('mixin.componentWillUpdate');
+          },
+          componentDidUpdate() {
+            this.log('mixin.componentDidUpdate');
+          },
+          componentWillUnmount() {
+            this.log('mixin.componentWillUnmount');
+          }
+        }
+      ],
+      log(name) {
+        ops.push(`${name}: ${this.isMounted()}`);
+      },
+      getInitialState() {
+        this.log('getInitialState');
+        return {};
+      },
+      componentWillMount() {
+        this.log('componentWillMount');
+      },
+      componentDidMount() {
+        this.log('componentDidMount');
+      },
+      componentWillUpdate() {
+        this.log('componentWillUpdate');
+      },
+      componentDidUpdate() {
+        this.log('componentDidUpdate');
+      },
+      componentWillUnmount() {
+        this.log('componentWillUnmount');
+      },
+      render() {
+        instance = this;
+        this.log('render');
+        return <div />;
+      }
+    });
+
+    var container = document.createElement('div');
+    ReactDOM.render(<Component />, container);
+    ReactDOM.render(<Component />, container);
+    ReactDOM.unmountComponentAtNode(container);
+    instance.log('after unmount');
+    expect(ops).toEqual([
+      'getInitialState: false',
+      'mixin.componentWillMount: false',
+      'componentWillMount: false',
+      'render: false',
+      'mixin.componentDidMount: true',
+      'componentDidMount: true',
+      'mixin.componentWillUpdate: true',
+      'componentWillUpdate: true',
+      'render: true',
+      'mixin.componentDidUpdate: true',
+      'componentDidUpdate: true',
+      'mixin.componentWillUnmount: true',
+      'componentWillUnmount: true',
+      'after unmount: false'
+    ]);
+
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toEqual(
+      'Warning: MyComponent: isMounted is deprecated. Instead, make sure to ' +
+        'clean up subscriptions and pending requests in componentWillUnmount ' +
+        'to prevent memory leaks.'
+    );
+  });
+});

addons/create-react-class/webpack.config.js

@@ -0,0 +1,59 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+const webpack = require('webpack');
+
+let __DEV__;
+switch (process.env.NODE_ENV) {
+  case 'development':
+    __DEV__ = true;
+    break;
+  case 'production':
+    __DEV__ = false;
+    break;
+  default:
+    throw new Error('Unknown environment.');
+}
+
+module.exports = {
+  entry: './index',
+  output: {
+    library: 'createReactClass',
+    libraryTarget: 'umd',
+    filename: __DEV__ ? 'create-react-class.js' : 'create-react-class.min.js'
+  },
+  externals: {
+    react: {
+      root: 'React',
+      commonjs2: 'react',
+      commonjs: 'react',
+      amd: 'react'
+    }
+  },
+  plugins: [
+    new webpack.DefinePlugin({
+      'process.env.NODE_ENV': __DEV__ ? '"development"' : '"production"'
+    })
+  ].concat(
+    __DEV__
+      ? []
+      : [
+          new webpack.optimize.UglifyJsPlugin({
+            compress: {
+              warnings: false
+            },
+            output: {
+              comments: false
+            }
+          })
+        ]
+  )
+};

addons/postbuild.js

@@ -0,0 +1,71 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+var fs = require('fs');
+var path = require('path');
+
+// This lets us import Webpack config without crashing
+process.env.NODE_ENV = 'development';
+
+// This script runs from the addon folder
+var exportName = require(path.resolve(process.cwd(), './webpack.config')).output
+  .library;
+var packageName = path.basename(process.cwd());
+
+if (packageName.indexOf('react-addons') !== 0) {
+  throw new Error(
+    'Only run this script for packages that used to be published as addons.'
+  );
+}
+
+// Inputs
+// DEV:  root["exportName"] = factory(root["React"])
+// PROD: e.exportName=t(e.React)
+var find = new RegExp(
+  '((?!exports)\\b\\w+)(\\["' +
+    exportName +
+    '"\\]|\\.' +
+    exportName +
+    ')\\s*=\\s*(\\w+)\\((.*)\\)'
+);
+// Outputs
+// DEV:  (root.React ? (root.React.addons = root.React.addons || {}) : /* throw */).exportName = factory(/* ... */);
+// PROD: (e.React ? (e.React.addons = e.React.addons || {}) : /* throw */).exportName = t(/* ... */)
+var throwIIFE = [
+  '(function(){',
+  'throw new Error("' +
+    packageName +
+    ' could not find the React object. If you are using script tags, make sure that React is being loaded before ' +
+    packageName +
+    '.")',
+  '})()'
+].join('');
+var replace =
+  '($1.React?($1.React.addons=$1.React.addons||{}):' +
+  throwIIFE +
+  ').' +
+  exportName +
+  '=$3($4)';
+
+console.log('Tweaking the development UMD...');
+var devUMD = fs.readFileSync('./' + packageName + '.js', 'utf8').toString();
+devUMD = devUMD.replace(find, replace);
+fs.writeFileSync('./' + packageName + '.js', devUMD);
+
+console.log('Tweaking the production UMD...');
+var prodUMD = fs
+  .readFileSync('./' + packageName + '.min.js', 'utf8')
+  .toString();
+prodUMD = prodUMD.replace(find, replace);
+fs.writeFileSync('./' + packageName + '.min.js', prodUMD);
+
+console.log('Done.');
+console.log('Note that you need to manually test the UMD builds.');

addons/react-addons-create-fragment/.gitignore

@@ -0,0 +1,2 @@
+react-addons-create-fragment.js
+react-addons-create-fragment.min.js

addons/react-addons-create-fragment/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present, Facebook, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/react-addons-create-fragment/README.md

@@ -0,0 +1,77 @@
+# react-addons-create-fragment
+
+
+>**Note:**
+>This is a legacy React addon, and is no longer maintained.
+>
+>We don't encourage using it in new code, but it exists for backwards compatibility.  
+>The recommended migration path is to use arrays with explicit keys on individual elements.
+
+**Importing**
+
+```javascript
+import createFragment from 'react-addons-create-fragment'; // ES6
+var createFragment = require('react-addons-create-fragment'); // ES5 with npm
+```
+
+If you prefer a `<script>` tag, you can get it from `React.addons.createFragment` with:
+
+```html
+<!-- development version -->
+<script src="https://unpkg.com/react-addons-create-fragment/react-addons-create-fragment.js"></script>
+
+<!-- production version -->
+<script src="https://unpkg.com/react-addons-create-fragment/react-addons-create-fragment.min.js"></script>
+```
+
+In this case, make sure to put the `<script>` tag after React.
+
+## Overview
+
+In most cases, you can use the `key` prop to specify keys on the elements you're returning from `render`. However, this breaks down in one situation: if you have two sets of children that you need to reorder, there's no way to put a key on each set without adding a wrapper element.
+
+That is, if you have a component such as:
+
+```js
+function Swapper(props) {
+  let children;
+  if (props.swapped) {
+    children = [props.rightChildren, props.leftChildren];
+  } else {
+    children = [props.leftChildren, props.rightChildren];
+  }
+  return <div>{children}</div>;
+}
+```
+
+The children will unmount and remount as you change the `swapped` prop because there aren't any keys marked on the two sets of children.
+
+To solve this problem, you can use the `createFragment` add-on to give keys to the sets of children.
+
+#### `Array<ReactNode> createFragment(object children)`
+
+Instead of creating arrays, we write:
+
+```javascript
+import createFragment from 'react-addons-create-fragment';
+
+function Swapper(props) {
+  let children;
+  if (props.swapped) {
+    children = createFragment({
+      right: props.rightChildren,
+      left: props.leftChildren
+    });
+  } else {
+    children = createFragment({
+      left: props.leftChildren,
+      right: props.rightChildren
+    });
+  }
+  return <div>{children}</div>;
+}
+```
+
+The keys of the passed object (that is, `left` and `right`) are used as keys for the entire set of children, and the order of the object's keys is used to determine the order of the rendered children. With this change, the two sets of children will be properly reordered in the DOM without unmounting.
+
+The return value of `createFragment` should be treated as an opaque object; you can use the [`React.Children`](https://facebook.github.io/react/docs/react-api.html#react.children) helpers to loop through a fragment but should not access it directly. Note also that we're relying on the JavaScript engine preserving object enumeration order here, which is not guaranteed by the spec but is implemented by all major browsers and VMs for objects with non-numeric keys.

addons/react-addons-create-fragment/index.js

@@ -0,0 +1,346 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+var React = require('react');
+
+var REACT_ELEMENT_TYPE =
+  (typeof Symbol === 'function' && Symbol.for && Symbol.for('react.element')) ||
+  0xeac7;
+
+var emptyFunction = require('fbjs/lib/emptyFunction');
+var invariant = require('fbjs/lib/invariant');
+var warning = require('fbjs/lib/warning');
+
+var SEPARATOR = '.';
+var SUBSEPARATOR = ':';
+
+var didWarnAboutMaps = false;
+
+var ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;
+var FAUX_ITERATOR_SYMBOL = '@@iterator'; // Before Symbol spec.
+
+function getIteratorFn(maybeIterable) {
+  var iteratorFn =
+    maybeIterable &&
+    ((ITERATOR_SYMBOL && maybeIterable[ITERATOR_SYMBOL]) ||
+      maybeIterable[FAUX_ITERATOR_SYMBOL]);
+  if (typeof iteratorFn === 'function') {
+    return iteratorFn;
+  }
+}
+
+function escape(key) {
+  var escapeRegex = /[=:]/g;
+  var escaperLookup = {
+    '=': '=0',
+    ':': '=2'
+  };
+  var escapedString = ('' + key).replace(escapeRegex, function(match) {
+    return escaperLookup[match];
+  });
+
+  return '$' + escapedString;
+}
+
+function getComponentKey(component, index) {
+  // Do some typechecking here since we call this blindly. We want to ensure
+  // that we don't block potential future ES APIs.
+  if (component && typeof component === 'object' && component.key != null) {
+    // Explicit key
+    return escape(component.key);
+  }
+  // Implicit key determined by the index in the set
+  return index.toString(36);
+}
+
+function traverseAllChildrenImpl(
+  children,
+  nameSoFar,
+  callback,
+  traverseContext
+) {
+  var type = typeof children;
+
+  if (type === 'undefined' || type === 'boolean') {
+    // All of the above are perceived as null.
+    children = null;
+  }
+
+  if (
+    children === null ||
+    type === 'string' ||
+    type === 'number' ||
+    // The following is inlined from ReactElement. This means we can optimize
+    // some checks. React Fiber also inlines this logic for similar purposes.
+    (type === 'object' && children.$$typeof === REACT_ELEMENT_TYPE)
+  ) {
+    callback(
+      traverseContext,
+      children,
+      // If it's the only child, treat the name as if it was wrapped in an array
+      // so that it's consistent if the number of children grows.
+      nameSoFar === '' ? SEPARATOR + getComponentKey(children, 0) : nameSoFar
+    );
+    return 1;
+  }
+
+  var child;
+  var nextName;
+  var subtreeCount = 0; // Count of children found in the current subtree.
+  var nextNamePrefix = nameSoFar === '' ? SEPARATOR : nameSoFar + SUBSEPARATOR;
+
+  if (Array.isArray(children)) {
+    for (var i = 0; i < children.length; i++) {
+      child = children[i];
+      nextName = nextNamePrefix + getComponentKey(child, i);
+      subtreeCount += traverseAllChildrenImpl(
+        child,
+        nextName,
+        callback,
+        traverseContext
+      );
+    }
+  } else {
+    var iteratorFn = getIteratorFn(children);
+    if (iteratorFn) {
+      if (process.env.NODE_ENV !== 'production') {
+        // Warn about using Maps as children
+        if (iteratorFn === children.entries) {
+          warning(
+            didWarnAboutMaps,
+            'Using Maps as children is unsupported and will likely yield ' +
+              'unexpected results. Convert it to a sequence/iterable of keyed ' +
+              'ReactElements instead.'
+          );
+          didWarnAboutMaps = true;
+        }
+      }
+
+      var iterator = iteratorFn.call(children);
+      var step;
+      var ii = 0;
+      while (!(step = iterator.next()).done) {
+        child = step.value;
+        nextName = nextNamePrefix + getComponentKey(child, ii++);
+        subtreeCount += traverseAllChildrenImpl(
+          child,
+          nextName,
+          callback,
+          traverseContext
+        );
+      }
+    } else if (type === 'object') {
+      var addendum = '';
+      if (process.env.NODE_ENV !== 'production') {
+        addendum =
+          ' If you meant to render a collection of children, use an array ' +
+          'instead or wrap the object using createFragment(object) from the ' +
+          'React add-ons.';
+      }
+      var childrenString = '' + children;
+      invariant(
+        false,
+        'Objects are not valid as a React child (found: %s).%s',
+        childrenString === '[object Object]'
+          ? 'object with keys {' + Object.keys(children).join(', ') + '}'
+          : childrenString,
+        addendum
+      );
+    }
+  }
+
+  return subtreeCount;
+}
+
+function traverseAllChildren(children, callback, traverseContext) {
+  if (children == null) {
+    return 0;
+  }
+
+  return traverseAllChildrenImpl(children, '', callback, traverseContext);
+}
+
+var userProvidedKeyEscapeRegex = /\/+/g;
+function escapeUserProvidedKey(text) {
+  return ('' + text).replace(userProvidedKeyEscapeRegex, '$&/');
+}
+
+function cloneAndReplaceKey(oldElement, newKey) {
+  return React.cloneElement(
+    oldElement,
+    {key: newKey},
+    oldElement.props !== undefined ? oldElement.props.children : undefined
+  );
+}
+
+var DEFAULT_POOL_SIZE = 10;
+var DEFAULT_POOLER = oneArgumentPooler;
+
+var oneArgumentPooler = function(copyFieldsFrom) {
+  var Klass = this;
+  if (Klass.instancePool.length) {
+    var instance = Klass.instancePool.pop();
+    Klass.call(instance, copyFieldsFrom);
+    return instance;
+  } else {
+    return new Klass(copyFieldsFrom);
+  }
+};
+
+var addPoolingTo = function addPoolingTo(CopyConstructor, pooler) {
+  // Casting as any so that flow ignores the actual implementation and trusts
+  // it to match the type we declared
+  var NewKlass = CopyConstructor;
+  NewKlass.instancePool = [];
+  NewKlass.getPooled = pooler || DEFAULT_POOLER;
+  if (!NewKlass.poolSize) {
+    NewKlass.poolSize = DEFAULT_POOL_SIZE;
+  }
+  NewKlass.release = standardReleaser;
+  return NewKlass;
+};
+
+var standardReleaser = function standardReleaser(instance) {
+  var Klass = this;
+  invariant(
+    instance instanceof Klass,
+    'Trying to release an instance into a pool of a different type.'
+  );
+  instance.destructor();
+  if (Klass.instancePool.length < Klass.poolSize) {
+    Klass.instancePool.push(instance);
+  }
+};
+
+var fourArgumentPooler = function fourArgumentPooler(a1, a2, a3, a4) {
+  var Klass = this;
+  if (Klass.instancePool.length) {
+    var instance = Klass.instancePool.pop();
+    Klass.call(instance, a1, a2, a3, a4);
+    return instance;
+  } else {
+    return new Klass(a1, a2, a3, a4);
+  }
+};
+
+function MapBookKeeping(mapResult, keyPrefix, mapFunction, mapContext) {
+  this.result = mapResult;
+  this.keyPrefix = keyPrefix;
+  this.func = mapFunction;
+  this.context = mapContext;
+  this.count = 0;
+}
+MapBookKeeping.prototype.destructor = function() {
+  this.result = null;
+  this.keyPrefix = null;
+  this.func = null;
+  this.context = null;
+  this.count = 0;
+};
+addPoolingTo(MapBookKeeping, fourArgumentPooler);
+
+function mapSingleChildIntoContext(bookKeeping, child, childKey) {
+  var result = bookKeeping.result;
+  var keyPrefix = bookKeeping.keyPrefix;
+  var func = bookKeeping.func;
+  var context = bookKeeping.context;
+
+  var mappedChild = func.call(context, child, bookKeeping.count++);
+  if (Array.isArray(mappedChild)) {
+    mapIntoWithKeyPrefixInternal(
+      mappedChild,
+      result,
+      childKey,
+      emptyFunction.thatReturnsArgument
+    );
+  } else if (mappedChild != null) {
+    if (React.isValidElement(mappedChild)) {
+      mappedChild = cloneAndReplaceKey(
+        mappedChild,
+        // Keep both the (mapped) and old keys if they differ, just as
+        // traverseAllChildren used to do for objects as children
+        keyPrefix +
+          (mappedChild.key && (!child || child.key !== mappedChild.key)
+            ? escapeUserProvidedKey(mappedChild.key) + '/'
+            : '') +
+          childKey
+      );
+    }
+    result.push(mappedChild);
+  }
+}
+
+function mapIntoWithKeyPrefixInternal(children, array, prefix, func, context) {
+  var escapedPrefix = '';
+  if (prefix != null) {
+    escapedPrefix = escapeUserProvidedKey(prefix) + '/';
+  }
+  var traverseContext = MapBookKeeping.getPooled(
+    array,
+    escapedPrefix,
+    func,
+    context
+  );
+  traverseAllChildren(children, mapSingleChildIntoContext, traverseContext);
+  MapBookKeeping.release(traverseContext);
+}
+
+var numericPropertyRegex = /^\d+$/;
+
+var warnedAboutNumeric = false;
+
+function createReactFragment(object) {
+  if (typeof object !== 'object' || !object || Array.isArray(object)) {
+    warning(
+      false,
+      'React.addons.createFragment only accepts a single object. Got: %s',
+      object
+    );
+    return object;
+  }
+  if (React.isValidElement(object)) {
+    warning(
+      false,
+      'React.addons.createFragment does not accept a ReactElement ' +
+        'without a wrapper object.'
+    );
+    return object;
+  }
+
+  invariant(
+    object.nodeType !== 1,
+    'React.addons.createFragment(...): Encountered an invalid child; DOM ' +
+      'elements are not valid children of React components.'
+  );
+
+  var result = [];
+
+  for (var key in object) {
+    if (process.env.NODE_ENV !== 'production') {
+      if (!warnedAboutNumeric && numericPropertyRegex.test(key)) {
+        warning(
+          false,
+          'React.addons.createFragment(...): Child objects should have ' +
+            'non-numeric keys so ordering is preserved.'
+        );
+        warnedAboutNumeric = true;
+      }
+    }
+    mapIntoWithKeyPrefixInternal(
+      object[key],
+      result,
+      key,
+      emptyFunction.thatReturnsArgument
+    );
+  }
+
+  return result;
+}
+
+module.exports = createReactFragment;

addons/react-addons-create-fragment/package.json

@@ -0,0 +1,41 @@
+{
+  "name": "react-addons-create-fragment",
+  "version": "15.6.2",
+  "main": "index.js",
+  "repository": "facebook/react",
+  "keywords": [
+    "react",
+    "react-addon"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "fbjs": "^0.8.4",
+    "loose-envify": "^1.3.1",
+    "object-assign": "^4.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "README.md",
+    "index.js",
+    "react-addons-create-fragment.js",
+    "react-addons-create-fragment.min.js"
+  ],
+  "scripts": {
+    "test": "TEST_ENTRY=./index.js jest",
+    "build:dev": "NODE_ENV=development webpack && TEST_ENTRY=./react-addons-create-fragment.js jest",
+    "build:prod": "NODE_ENV=production webpack && NODE_ENV=production TEST_ENTRY=./react-addons-create-fragment.min.js jest",
+    "build": "npm run build:dev && npm run build:prod && node ../postbuild.js",
+    "prepublish": "npm test && npm run build"
+  },
+  "devDependencies": {
+    "jest": "^19.0.2",
+    "react": "^15.4.2",
+    "react-dom": "^15.4.2",
+    "webpack": "^2.6.1"
+  },
+  "browserify": {
+    "transform": [
+      "loose-envify"
+    ]
+  }
+}

addons/react-addons-create-fragment/test.js

@@ -0,0 +1,131 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+var React;
+var createReactFragment;
+
+// Catch stray warnings
+var env = jasmine.getEnv();
+var callCount = 0;
+var oldError = console.error;
+var newError = function() {
+  callCount++;
+  oldError.apply(this, arguments);
+};
+console.error = newError;
+env.beforeEach(() => {
+  callCount = 0;
+  jasmine.addMatchers({
+    toBeReset() {
+      return {
+        compare(actual) {
+          if (actual !== newError && !jasmine.isSpy(actual)) {
+            return {
+              pass: false,
+              message: 'Test did not tear down console.error mock properly.'
+            };
+          }
+          return {pass: true};
+        }
+      };
+    },
+    toNotHaveBeenCalled() {
+      return {
+        compare(actual) {
+          return {
+            pass: callCount === 0,
+            message:
+              'Expected test not to warn. If the warning is expected, mock ' +
+                "it out using spyOn(console, 'error'); and test that the " +
+                'warning occurs.'
+          };
+        }
+      };
+    }
+  });
+});
+env.afterEach(() => {
+  expect(console.error).toBeReset();
+  expect(console.error).toNotHaveBeenCalled();
+});
+
+// Suppress warning expectations for prod builds
+function suppressDevMatcher(obj, name) {
+  const original = obj[name];
+  obj[name] = function devMatcher() {
+    try {
+      original.apply(this, arguments);
+    } catch (e) {
+      // skip
+    }
+  };
+}
+function expectDev(actual) {
+  const expectation = expect(actual);
+  if (process.env.NODE_ENV === 'production') {
+    Object.keys(expectation).forEach(name => {
+      suppressDevMatcher(expectation, name);
+      suppressDevMatcher(expectation.not, name);
+    });
+  }
+  return expectation;
+}
+
+describe('createReactFragment', () => {
+  beforeEach(() => {
+    jest.resetModules();
+
+    React = require('react');
+    createReactFragment = require(process.env.TEST_ENTRY);
+  });
+
+  it('warns for numeric keys on objects as children', () => {
+    spyOn(console, 'error');
+
+    createReactFragment({
+      1: React.createElement('span'),
+      2: React.createElement('span')
+    });
+
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toContain(
+      'Child objects should have non-numeric keys so ordering is preserved.'
+    );
+  });
+
+  it('should warn if passing null to createFragment', () => {
+    spyOn(console, 'error');
+    createReactFragment(null);
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toContain(
+      'React.addons.createFragment only accepts a single object.'
+    );
+  });
+
+  it('should warn if passing an array to createFragment', () => {
+    spyOn(console, 'error');
+    createReactFragment([]);
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toContain(
+      'React.addons.createFragment only accepts a single object.'
+    );
+  });
+
+  it('should warn if passing a ReactElement to createFragment', () => {
+    spyOn(console, 'error');
+    createReactFragment(React.createElement('div'));
+    expectDev(console.error.calls.count()).toBe(1);
+    expectDev(console.error.calls.argsFor(0)[0]).toContain(
+      'React.addons.createFragment does not accept a ReactElement without a ' +
+        'wrapper object.'
+    );
+  });
+});

addons/react-addons-create-fragment/webpack.config.js

@@ -0,0 +1,61 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+const webpack = require('webpack');
+
+let __DEV__;
+switch (process.env.NODE_ENV) {
+  case 'development':
+    __DEV__ = true;
+    break;
+  case 'production':
+    __DEV__ = false;
+    break;
+  default:
+    throw new Error('Unknown environment.');
+}
+
+module.exports = {
+  entry: './index',
+  output: {
+    library: 'createFragment',
+    libraryTarget: 'umd',
+    filename: __DEV__
+      ? 'react-addons-create-fragment.js'
+      : 'react-addons-create-fragment.min.js'
+  },
+  externals: {
+    react: {
+      root: 'React',
+      commonjs2: 'react',
+      commonjs: 'react',
+      amd: 'react'
+    }
+  },
+  plugins: [
+    new webpack.DefinePlugin({
+      'process.env.NODE_ENV': __DEV__ ? '"development"' : '"production"'
+    })
+  ].concat(
+    __DEV__
+      ? []
+      : [
+          new webpack.optimize.UglifyJsPlugin({
+            compress: {
+              warnings: false
+            },
+            output: {
+              comments: false
+            }
+          })
+        ]
+  )
+};

addons/react-addons-css-transition-group/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present, Facebook, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/react-addons-css-transition-group/README.md

@@ -0,0 +1,17 @@
+# react-addons-css-transition-group
+
+The code in this package has moved. We recommend you to use `CSSTransitionGroup` from [`react-transition-group`](https://github.com/reactjs/react-transition-group) instead.
+
+In particular, its version `1.x` is a drop-in replacement for the last released version of `react-addons-css-transition-group`.
+
+Run `npm install --save react-transition-group@1.x`, and replace the imports in your code:
+
+```js
+// Old
+import CSSTransitionGroup from 'react-addons-css-transition-group';
+
+// New
+import CSSTransitionGroup from 'react-transition-group/CSSTransitionGroup';
+```
+
+The documentation branch for `react-transition-group@1.x` [can be found here](https://github.com/reactjs/react-transition-group/tree/v1-stable#high-level-api-csstransitiongroup).

addons/react-addons-css-transition-group/index.js

@@ -0,0 +1,10 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+module.exports = require('react-transition-group/CSSTransitionGroup');

addons/react-addons-css-transition-group/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "react-addons-css-transition-group",
+  "version": "15.6.2",
+  "main": "index.js",
+  "repository": "facebook/react",
+  "keywords": [
+    "react",
+    "react-addon"
+  ],
+  "license": "MIT",
+  "scripts": {
+    "prepublish": ":"
+  },
+  "dependencies": {
+    "react-transition-group": "^1.2.0"
+  },
+  "files": [
+    "LICENSE",
+    "README.md",
+    "index.js"
+  ],
+  "peerDependencies": {
+    "react": "^15.4.2"
+  }
+}

addons/react-addons-css-transition-group/yarn.lock

@@ -0,0 +1,114 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+asap@~2.0.3:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.5.tgz#522765b50c3510490e52d7dcfe085ef9ba96958f"
+
+chain-function@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/chain-function/-/chain-function-1.0.0.tgz#0d4ab37e7e18ead0bdc47b920764118ce58733dc"
+
+core-js@^1.0.0:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
+
+dom-helpers@^3.2.0:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/dom-helpers/-/dom-helpers-3.2.1.tgz#3203e07fed217bd1f424b019735582fc37b2825a"
+
+encoding@^0.1.11:
+  version "0.1.12"
+  resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
+  dependencies:
+    iconv-lite "~0.4.13"
+
+fbjs@^0.8.9:
+  version "0.8.12"
+  resolved "https://registry.yarnpkg.com/fbjs/-/fbjs-0.8.12.tgz#10b5d92f76d45575fd63a217d4ea02bea2f8ed04"
+  dependencies:
+    core-js "^1.0.0"
+    isomorphic-fetch "^2.1.1"
+    loose-envify "^1.0.0"
+    object-assign "^4.1.0"
+    promise "^7.1.1"
+    setimmediate "^1.0.5"
+    ua-parser-js "^0.7.9"
+
+iconv-lite@~0.4.13:
+  version "0.4.17"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.17.tgz#4fdaa3b38acbc2c031b045d0edcdfe1ecab18c8d"
+
+is-stream@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
+
+isomorphic-fetch@^2.1.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz#611ae1acf14f5e81f729507472819fe9733558a9"
+  dependencies:
+    node-fetch "^1.0.1"
+    whatwg-fetch ">=0.10.0"
+
+js-tokens@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.1.tgz#08e9f132484a2c45a30907e9dc4d5567b7f114d7"
+
+loose-envify@^1.0.0, loose-envify@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.1.tgz#d1a8ad33fa9ce0e713d65fdd0ac8b748d478c848"
+  dependencies:
+    js-tokens "^3.0.0"
+
+node-fetch@^1.0.1:
+  version "1.7.1"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.1.tgz#899cb3d0a3c92f952c47f1b876f4c8aeabd400d5"
+  dependencies:
+    encoding "^0.1.11"
+    is-stream "^1.0.1"
+
+object-assign@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+
+promise@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/promise/-/promise-7.1.1.tgz#489654c692616b8aa55b0724fa809bb7db49c5bf"
+  dependencies:
+    asap "~2.0.3"
+
+prop-types@^15.5.6:
+  version "15.5.10"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.5.10.tgz#2797dfc3126182e3a95e3dfbb2e893ddd7456154"
+  dependencies:
+    fbjs "^0.8.9"
+    loose-envify "^1.3.1"
+
+react-transition-group@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/react-transition-group/-/react-transition-group-1.2.0.tgz#b51fc921b0c3835a7ef7c571c79fc82c73e9204f"
+  dependencies:
+    chain-function "^1.0.0"
+    dom-helpers "^3.2.0"
+    loose-envify "^1.3.1"
+    prop-types "^15.5.6"
+    warning "^3.0.0"
+
+setimmediate@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
+
+ua-parser-js@^0.7.9:
+  version "0.7.12"
+  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.12.tgz#04c81a99bdd5dc52263ea29d24c6bf8d4818a4bb"
+
+warning@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/warning/-/warning-3.0.0.tgz#32e5377cb572de4ab04753bdf8821c01ed605b7c"
+  dependencies:
+    loose-envify "^1.0.0"
+
+whatwg-fetch@>=0.10.0:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.3.tgz#9c84ec2dcf68187ff00bc64e1274b442176e1c84"

addons/react-addons-linked-state-mixin/.gitignore

@@ -0,0 +1,2 @@
+react-addons-linked-state-mixin.js
+react-addons-linked-state-mixin.min.js

addons/react-addons-linked-state-mixin/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present, Facebook, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/react-addons-linked-state-mixin/README.md

@@ -0,0 +1,109 @@
+# react-addons-linked-state-mixin
+
+>**Note:**
+>This is a legacy React addon, and is no longer maintained.
+>
+>We don't encourage using it in new code, but it exists for backwards compatibility.  
+>The recommended migration path is to explicitly set `value` and the `onChange` handler instead of using `LinkedStateMixin`.
+
+**Importing `LinkedStateMixin`**
+
+```javascript
+import LinkedStateMixin from 'react-addons-linked-state-mixin'; // ES6
+var LinkedStateMixin = require('react-addons-linked-state-mixin'); // ES5 with npm
+```
+
+If you prefer a `<script>` tag, you can get it from `React.addons.LinkedStateMixin` with:
+
+```html
+<!-- development version -->
+<script src="https://unpkg.com/react-addons-linked-state-mixin/react-addons-linked-state-mixin.js"></script>
+
+<!-- production version -->
+<script src="https://unpkg.com/react-addons-linked-state-mixin/react-addons-linked-state-mixin.min.js"></script>
+```
+
+In this case, make sure to put the `<script>` tag after React.
+
+**Importing `LinkedInput`**
+
+After React 16, you will also need `LinkedInput` component if you want to keep using this pattern. You can import it like this:
+
+```javascript
+import LinkedInput from 'react-linked-input'; // ES6
+var LinkedInput = require('react-linked-input'); // ES5 with npm
+```
+
+If you prefer a `<script>` tag, you can get it from `LinkedInput` global with:
+
+```html
+<!-- development version -->
+<script src="https://unpkg.com/react-linked-input/react-linked-input.js"></script>
+
+<!-- production version -->
+<script src="https://unpkg.com/react-linked-input/react-linked-input.min.js"></script>
+```
+
+## Overview
+
+`LinkedStateMixin` is an easy way to express two-way binding with React.
+
+In React, data flows one way: from owner to child. We think that this makes your app's code easier to understand. You can think of it as "one-way data binding."
+
+However, there are lots of applications that require you to read some data and flow it back into your program. For example, when developing forms, you'll often want to update some React `state` when you receive user input. Or perhaps you want to perform layout in JavaScript and react to changes in some DOM element size.
+
+In React, you would implement this by listening to a "change" event, read from your data source (usually the DOM) and call `setState()` on one of your components. "Closing the data flow loop" explicitly leads to more understandable and easier-to-maintain programs. See [our forms documentation](https://facebook.github.io/react/docs/forms.html) for more information.
+
+Two-way binding -- implicitly enforcing that some value in the DOM is always consistent with some React `state` -- is concise and supports a wide variety of applications. We've provided `LinkedStateMixin`: syntactic sugar for setting up the common data flow loop pattern described above, or "linking" some data source to React `state`.
+
+> Note:
+>
+> `LinkedStateMixin` is just a thin wrapper and convention around the `onChange`/`setState()` pattern. It doesn't fundamentally change how data flows in your React application.
+
+## LinkedStateMixin: Before and After
+
+Here's a simple form example without using `LinkedStateMixin`:
+
+```javascript
+var createReactClass = require('create-react-class');
+
+var NoLink = createReactClass({
+  getInitialState: function() {
+    return {message: 'Hello!'};
+  },
+  handleChange: function(event) {
+    this.setState({message: event.target.value});
+  },
+  render: function() {
+    var message = this.state.message;
+    return <input type="text" value={message} onChange={this.handleChange} />;
+  }
+});
+```
+
+This works really well and it's very clear how data is flowing, however, with a lot of form fields it could get a bit verbose. Let's use `LinkedStateMixin` to save us some typing:
+
+```javascript
+var createReactClass = require('create-react-class');
+var LinkedInput = require('react-linked-input');
+
+var WithLink = createReactClass({
+  mixins: [LinkedStateMixin],
+  getInitialState: function() {
+    return {message: 'Hello!'};
+  },
+  render: function() {
+    return <LinkedInput type="text" valueLink={this.linkState('message')} />;
+  }
+});
+```
+
+`LinkedStateMixin` adds a method to your React component called `linkState()`. `linkState()` returns a `valueLink` object which contains the current value of the React state and a callback to change it. The `LinkInput` component passes those properties to the input it renders.
+
+`valueLink` objects can be passed up and down the tree as props, so it's easy (and explicit) to set up two-way binding between a component deep in the hierarchy and state that lives higher in the hierarchy.
+
+Note that checkboxes have a special behavior regarding their `value` attribute, which is the value that will be sent on form submit if the checkbox is checked (defaults to `on`). The `value` attribute is not updated when the checkbox is checked or unchecked. For checkboxes, you should use `checkedLink` instead of `valueLink`:
+
+```
+<LinkedInput type="checkbox" checkedLink={this.linkState('booleanValue')} />
+```

addons/react-addons-linked-state-mixin/index.js

@@ -0,0 +1,156 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+/**
+ * ReactLink encapsulates a common pattern in which a component wants to modify
+ * a prop received from its parent. ReactLink allows the parent to pass down a
+ * value coupled with a callback that, when invoked, expresses an intent to
+ * modify that value. For example:
+ *
+ * React.createClass({
+ *   getInitialState: function() {
+ *     return {value: ''};
+ *   },
+ *   render: function() {
+ *     var valueLink = new ReactLink(this.state.value, this._handleValueChange);
+ *     return <input valueLink={valueLink} />;
+ *   },
+ *   _handleValueChange: function(newValue) {
+ *     this.setState({value: newValue});
+ *   }
+ * });
+ *
+ * We have provided some sugary mixins to make the creation and
+ * consumption of ReactLink easier; see LinkedValueUtils and LinkedStateMixin.
+ */
+
+/**
+ * Deprecated: An an easy way to express two-way binding with React.
+ * See https://facebook.github.io/react/docs/two-way-binding-helpers.html
+ *
+ * @param {*} value current value of the link
+ * @param {function} requestChange callback to request a change
+ */
+function ReactLink(value, requestChange) {
+  this.value = value;
+  this.requestChange = requestChange;
+}
+
+var ReactStateSetters = {
+  /**
+   * Returns a function that calls the provided function, and uses the result
+   * of that to set the component's state.
+   *
+   * @param {ReactCompositeComponent} component
+   * @param {function} funcReturningState Returned callback uses this to
+   *                                      determine how to update state.
+   * @return {function} callback that when invoked uses funcReturningState to
+   *                    determined the object literal to setState.
+   */
+  createStateSetter: function(component, funcReturningState) {
+    return function(a, b, c, d, e, f) {
+      var partialState = funcReturningState.call(component, a, b, c, d, e, f);
+      if (partialState) {
+        component.setState(partialState);
+      }
+    };
+  },
+
+  /**
+   * Returns a single-argument callback that can be used to update a single
+   * key in the component's state.
+   *
+   * Note: this is memoized function, which makes it inexpensive to call.
+   *
+   * @param {ReactCompositeComponent} component
+   * @param {string} key The key in the state that you should update.
+   * @return {function} callback of 1 argument which calls setState() with
+   *                    the provided keyName and callback argument.
+   */
+  createStateKeySetter: function(component, key) {
+    // Memoize the setters.
+    var cache = component.__keySetters || (component.__keySetters = {});
+    return cache[key] || (cache[key] = createStateKeySetter(component, key));
+  }
+};
+
+function createStateKeySetter(component, key) {
+  // Partial state is allocated outside of the function closure so it can be
+  // reused with every call, avoiding memory allocation when this function
+  // is called.
+  var partialState = {};
+  return function stateKeySetter(value) {
+    partialState[key] = value;
+    component.setState(partialState);
+  };
+}
+
+ReactStateSetters.Mixin = {
+  /**
+   * Returns a function that calls the provided function, and uses the result
+   * of that to set the component's state.
+   *
+   * For example, these statements are equivalent:
+   *
+   *   this.setState({x: 1});
+   *   this.createStateSetter(function(xValue) {
+   *     return {x: xValue};
+   *   })(1);
+   *
+   * @param {function} funcReturningState Returned callback uses this to
+   *                                      determine how to update state.
+   * @return {function} callback that when invoked uses funcReturningState to
+   *                    determined the object literal to setState.
+   */
+  createStateSetter: function(funcReturningState) {
+    return ReactStateSetters.createStateSetter(this, funcReturningState);
+  },
+
+  /**
+   * Returns a single-argument callback that can be used to update a single
+   * key in the component's state.
+   *
+   * For example, these statements are equivalent:
+   *
+   *   this.setState({x: 1});
+   *   this.createStateKeySetter('x')(1);
+   *
+   * Note: this is memoized function, which makes it inexpensive to call.
+   *
+   * @param {string} key The key in the state that you should update.
+   * @return {function} callback of 1 argument which calls setState() with
+   *                    the provided keyName and callback argument.
+   */
+  createStateKeySetter: function(key) {
+    return ReactStateSetters.createStateKeySetter(this, key);
+  }
+};
+
+/**
+ * A simple mixin around ReactLink.forState().
+ * See https://facebook.github.io/react/docs/two-way-binding-helpers.html
+ */
+var LinkedStateMixin = {
+  /**
+   * Create a ReactLink that's linked to part of this component's state. The
+   * ReactLink will have the current value of this.state[key] and will call
+   * setState() when a change is requested.
+   *
+   * @param {string} key state key to update.
+   * @return {ReactLink} ReactLink instance linking to the state.
+   */
+  linkState: function(key) {
+    return new ReactLink(
+      this.state[key],
+      ReactStateSetters.createStateKeySetter(this, key)
+    );
+  }
+};
+
+module.exports = LinkedStateMixin;

addons/react-addons-linked-state-mixin/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "react-addons-linked-state-mixin",
+  "version": "15.6.2",
+  "main": "index.js",
+  "repository": "facebook/react",
+  "keywords": [
+    "react",
+    "react-addon"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "fbjs": "^0.8.4",
+    "object-assign": "^4.1.0"
+  },
+  "scripts": {
+    "test": "TEST_ENTRY=./index.js jest",
+    "build:dev": "NODE_ENV=development webpack && TEST_ENTRY=./react-addons-linked-state-mixin.js jest",
+    "build:prod": "NODE_ENV=production webpack && NODE_ENV=production TEST_ENTRY=./react-addons-linked-state-mixin.min.js jest",
+    "build": "npm run build:dev && npm run build:prod && node ../postbuild.js",
+    "prepublish": "npm test && npm run build"
+  },
+  "files": [
+    "LICENSE",
+    "README.md",
+    "index.js",
+    "react-addons-linked-state-mixin.js",
+    "react-addons-linked-state-mixin.min.js"
+  ],
+  "devDependencies": {
+    "create-react-class": "^15.5.4",
+    "jest": "^19.0.2",
+    "react": "^15.5.4",
+    "react-dom": "^15.5.4",
+    "webpack": "^2.6.1"
+  }
+}

addons/react-addons-linked-state-mixin/test.js

@@ -0,0 +1,131 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+let LinkedStateMixin;
+let createReactClass;
+let React;
+let ReactDOM;
+let ReactTestUtils;
+
+// Catch stray warnings
+var env = jasmine.getEnv();
+var callCount = 0;
+var oldError = console.error;
+var newError = function() {
+  callCount++;
+  oldError.apply(this, arguments);
+};
+console.error = newError;
+env.beforeEach(() => {
+  callCount = 0;
+  jasmine.addMatchers({
+    toBeReset() {
+      return {
+        compare(actual) {
+          if (actual !== newError && !jasmine.isSpy(actual)) {
+            return {
+              pass: false,
+              message: 'Test did not tear down console.error mock properly.'
+            };
+          }
+          return {pass: true};
+        }
+      };
+    },
+    toNotHaveBeenCalled() {
+      return {
+        compare(actual) {
+          return {
+            pass: callCount === 0,
+            message:
+              'Expected test not to warn. If the warning is expected, mock ' +
+                "it out using spyOn(console, 'error'); and test that the " +
+                'warning occurs.'
+          };
+        }
+      };
+    }
+  });
+});
+env.afterEach(() => {
+  expect(console.error).toBeReset();
+  expect(console.error).toNotHaveBeenCalled();
+});
+
+describe('LinkedStateMixin', () => {
+  beforeEach(() => {
+    jest.resetModules();
+
+    createReactClass = require('create-react-class');
+    React = require('react');
+    ReactDOM = require('react-dom');
+    ReactTestUtils = require('react-dom/test-utils');
+    LinkedStateMixin = require(process.env.TEST_ENTRY);
+  });
+
+  // https://facebook.github.io/react/docs/two-way-binding-helpers.html#linkedstatemixin-before-and-after
+  it('should work with valueLink', () => {
+    spyOn(console, 'error'); // Ignore deprecated valueLink message for now
+
+    const WithLink = createReactClass({
+      mixins: [LinkedStateMixin],
+      getInitialState: function() {
+        return {message: 'Hello!'};
+      },
+      render: function() {
+        return <input type="text" valueLink={this.linkState('message')} />;
+      }
+    });
+
+    const instance = ReactTestUtils.renderIntoDocument(
+      React.createElement(WithLink)
+    );
+
+    expect(instance.state.message).toBe('Hello!');
+
+    const node = ReactDOM.findDOMNode(instance);
+    node.value = 'Goodbye!';
+    ReactTestUtils.Simulate.change(node);
+
+    expect(instance.state.message).toBe('Goodbye!');
+  });
+
+  // https://facebook.github.io/react/docs/two-way-binding-helpers.html#linkedstatemixin-without-valuelink
+  it('should work without valueLink', () => {
+    const WithoutLink = createReactClass({
+      mixins: [LinkedStateMixin],
+      getInitialState: function() {
+        return {message: 'Hello!'};
+      },
+      render: function() {
+        var valueLink = this.linkState('message');
+        var handleChange = function(e) {
+          valueLink.requestChange(e.target.value);
+        };
+        return (
+          <input type="text" value={valueLink.value} onChange={handleChange} />
+        );
+      }
+    });
+
+    const instance = ReactTestUtils.renderIntoDocument(
+      React.createElement(WithoutLink)
+    );
+
+    expect(instance.state.message).toBe('Hello!');
+
+    const node = ReactDOM.findDOMNode(instance);
+    node.value = 'Goodbye!';
+    ReactTestUtils.Simulate.change(node);
+
+    expect(instance.state.message).toBe('Goodbye!');
+  });
+});

addons/react-addons-linked-state-mixin/webpack.config.js

@@ -0,0 +1,53 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+const webpack = require('webpack');
+
+let __DEV__;
+switch (process.env.NODE_ENV) {
+  case 'development':
+    __DEV__ = true;
+    break;
+  case 'production':
+    __DEV__ = false;
+    break;
+  default:
+    throw new Error('Unknown environment.');
+}
+
+module.exports = {
+  entry: './index',
+  output: {
+    library: 'LinkedStateMixin',
+    libraryTarget: 'umd',
+    filename: __DEV__
+      ? 'react-addons-linked-state-mixin.js'
+      : 'react-addons-linked-state-mixin.min.js'
+  },
+  plugins: [
+    new webpack.DefinePlugin({
+      'process.env.NODE_ENV': __DEV__ ? '"development"' : '"production"'
+    })
+  ].concat(
+    __DEV__
+      ? []
+      : [
+          new webpack.optimize.UglifyJsPlugin({
+            compress: {
+              warnings: false
+            },
+            output: {
+              comments: false
+            }
+          })
+        ]
+  )
+};

addons/react-addons-pure-render-mixin/.gitignore

@@ -0,0 +1,2 @@
+react-addons-pure-render-mixin.js
+react-addons-pure-render-mixin.min.js

addons/react-addons-pure-render-mixin/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present, Facebook, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/react-addons-pure-render-mixin/README.md

@@ -0,0 +1,52 @@
+# react-addons-pure-render-mixin
+
+>**Note:**
+>This is a legacy React addon, and is no longer maintained.
+>
+>We don't encourage using it in new code, but it exists for backwards compatibility.  
+>The recommended migration path is to use [`React.PureComponent`](https://facebook.github.io/react/docs/react-api.html#react.purecomponent) instead.
+
+**Importing**
+
+```javascript
+import PureRenderMixin from 'react-addons-pure-render-mixin'; // ES6
+var PureRenderMixin = require('react-addons-pure-render-mixin'); // ES5 with npm
+```
+
+If you prefer a `<script>` tag, you can get it from `React.addons.PureRenderMixin` with:
+
+```html
+<!-- development version -->
+<script src="https://unpkg.com/react-addons-pure-render-mixin/react-addons-pure-render-mixin.js"></script>
+
+<!-- production version -->
+<script src="https://unpkg.com/react-addons-pure-render-mixin/react-addons-pure-render-mixin.min.js"></script>
+```
+
+In this case, make sure to put the `<script>` tag after React.
+
+## Overview
+
+If your React component's render function renders the same result given the same props and state, you can use this mixin for a performance boost in some cases.
+
+Example:
+
+```js
+const createReactClass = require('create-react-class');
+
+createReactClass({
+  mixins: [PureRenderMixin],
+
+  render: function() {
+    return <div className={this.props.className}>foo</div>;
+  }
+});
+```
+
+Under the hood, the mixin implements [shouldComponentUpdate](https://facebook.github.io/react/docs/component-specs.html#updating-shouldcomponentupdate), in which it compares the current props and state with the next ones and returns `false` if the equalities pass.
+
+> Note:
+>
+> This only shallowly compares the objects. If these contain complex data structures, it may produce false-negatives for deeper differences. Only mix into components which have simple props and state, or use `forceUpdate()` when you know deep data structures have changed. Or, consider using [immutable objects](https://facebook.github.io/immutable-js/) to facilitate fast comparisons of nested data.
+>
+> Furthermore, `shouldComponentUpdate` skips updates for the whole component subtree. Make sure all the children components are also "pure".

addons/react-addons-pure-render-mixin/index.js

@@ -0,0 +1,20 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+
+'use strict';
+
+var shallowEqual = require('fbjs/lib/shallowEqual');
+
+module.exports = {
+  shouldComponentUpdate: function(nextProps, nextState) {
+    return (
+      !shallowEqual(this.props, nextProps) ||
+      !shallowEqual(this.state, nextState)
+    );
+  }
+};

addons/react-addons-pure-render-mixin/package.json

@@ -0,0 +1,35 @@
+{
+  "name": "react-addons-pure-render-mixin",
+  "version": "15.6.2",
+  "main": "index.js",
+  "repository": "facebook/react",
+  "keywords": [
+    "react",
+    "react-addon"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "fbjs": "^0.8.4",
+    "object-assign": "^4.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "README.md",
+    "index.js",
+    "react-addons-pure-render-mixin.js",
+    "react-addons-pure-render-mixin.min.js"
+  ],
+  "scripts": {
+    "test": "TEST_ENTRY=./index.js jest",
+    "build:dev": "NODE_ENV=development webpack && TEST_ENTRY=./react-addons-pure-render-mixin.js jest",
+    "build:prod": "NODE_ENV=production webpack && NODE_ENV=production TEST_ENTRY=./react-addons-pure-render-mixin.min.js jest",
+    "build": "npm run build:dev && npm run build:prod && node ../postbuild.js",
+    "prepublish": "npm test && npm run build"
+  },
+  "devDependencies": {
+    "jest": "^19.0.2",
+    "react": "^15.4.2",
+    "react-dom": "^15.4.2",
+    "webpack": "^2.6.1"
+  }
+}

addons/react-addons-pure-render-mixin/test.js

@@ -0,0 +1,188 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+var React;
+var ReactDOM;
+var ReactComponentWithPureRenderMixin;
+
+// Catch stray warnings
+var env = jasmine.getEnv();
+var callCount = 0;
+var oldError = console.error;
+var newError = function() {
+  callCount++;
+  oldError.apply(this, arguments);
+};
+console.error = newError;
+env.beforeEach(() => {
+  callCount = 0;
+  jasmine.addMatchers({
+    toBeReset() {
+      return {
+        compare(actual) {
+          if (actual !== newError && !jasmine.isSpy(actual)) {
+            return {
+              pass: false,
+              message: 'Test did not tear down console.error mock properly.'
+            };
+          }
+          return {pass: true};
+        }
+      };
+    },
+    toNotHaveBeenCalled() {
+      return {
+        compare(actual) {
+          return {
+            pass: callCount === 0,
+            message:
+              'Expected test not to warn. If the warning is expected, mock ' +
+                "it out using spyOn(console, 'error'); and test that the " +
+                'warning occurs.'
+          };
+        }
+      };
+    }
+  });
+});
+env.afterEach(() => {
+  expect(console.error).toBeReset();
+  expect(console.error).toNotHaveBeenCalled();
+});
+
+function renderIntoDocument(element) {
+  var node = document.createElement('div');
+  return ReactDOM.render(element, node);
+}
+
+describe('PureRenderMixin', () => {
+  beforeEach(() => {
+    React = require('react');
+    ReactDOM = require('react-dom');
+    ReactComponentWithPureRenderMixin = require(process.env.TEST_ENTRY);
+  });
+
+  it('provides a default shouldComponentUpdate implementation', () => {
+    var renderCalls = 0;
+    class PlasticWrap extends React.Component {
+      constructor(props, context) {
+        super(props, context);
+        this.state = {
+          color: 'green'
+        };
+      }
+
+      render() {
+        return React.createElement(Apple, {
+          color: this.state.color,
+          ref: 'apple'
+        });
+      }
+    }
+
+    var Apple = React.createClass({
+      mixins: [ReactComponentWithPureRenderMixin],
+
+      getInitialState: function() {
+        return {
+          cut: false,
+          slices: 1
+        };
+      },
+
+      cut: function() {
+        this.setState({
+          cut: true,
+          slices: 10
+        });
+      },
+
+      eatSlice: function() {
+        this.setState({
+          slices: this.state.slices - 1
+        });
+      },
+
+      render: function() {
+        renderCalls++;
+        return React.createElement('div');
+      }
+    });
+
+    var instance = renderIntoDocument(React.createElement(PlasticWrap));
+    expect(renderCalls).toBe(1);
+
+    // Do not re-render based on props
+    instance.setState({color: 'green'});
+    expect(renderCalls).toBe(1);
+
+    // Re-render based on props
+    instance.setState({color: 'red'});
+    expect(renderCalls).toBe(2);
+
+    // Re-render base on state
+    instance.refs.apple.cut();
+    expect(renderCalls).toBe(3);
+
+    // No re-render based on state
+    instance.refs.apple.cut();
+    expect(renderCalls).toBe(3);
+
+    // Re-render based on state again
+    instance.refs.apple.eatSlice();
+    expect(renderCalls).toBe(4);
+  });
+
+  it('does not do a deep comparison', () => {
+    function getInitialState() {
+      return {
+        foo: [1, 2, 3],
+        bar: {a: 4, b: 5, c: 6}
+      };
+    }
+
+    var renderCalls = 0;
+    var initialSettings = getInitialState();
+
+    var Component = React.createClass({
+      mixins: [ReactComponentWithPureRenderMixin],
+
+      getInitialState: function() {
+        return initialSettings;
+      },
+
+      render: function() {
+        renderCalls++;
+        return React.createElement('div');
+      }
+    });
+
+    var instance = renderIntoDocument(React.createElement(Component));
+    expect(renderCalls).toBe(1);
+
+    // Do not re-render if state is equal
+    var settings = {
+      foo: initialSettings.foo,
+      bar: initialSettings.bar
+    };
+    instance.setState(settings);
+    expect(renderCalls).toBe(1);
+
+    // Re-render because one field changed
+    initialSettings.foo = [1, 2, 3];
+    instance.setState(initialSettings);
+    expect(renderCalls).toBe(2);
+
+    // Re-render because the object changed
+    instance.setState(getInitialState());
+    expect(renderCalls).toBe(3);
+  });
+});

addons/react-addons-pure-render-mixin/webpack.config.js

@@ -0,0 +1,53 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+const webpack = require('webpack');
+
+let __DEV__;
+switch (process.env.NODE_ENV) {
+  case 'development':
+    __DEV__ = true;
+    break;
+  case 'production':
+    __DEV__ = false;
+    break;
+  default:
+    throw new Error('Unknown environment.');
+}
+
+module.exports = {
+  entry: './index',
+  output: {
+    library: 'PureRenderMixin',
+    libraryTarget: 'umd',
+    filename: __DEV__
+      ? 'react-addons-pure-render-mixin.js'
+      : 'react-addons-pure-render-mixin.min.js'
+  },
+  plugins: [
+    new webpack.DefinePlugin({
+      'process.env.NODE_ENV': __DEV__ ? '"development"' : '"production"'
+    })
+  ].concat(
+    __DEV__
+      ? []
+      : [
+          new webpack.optimize.UglifyJsPlugin({
+            compress: {
+              warnings: false
+            },
+            output: {
+              comments: false
+            }
+          })
+        ]
+  )
+};

addons/react-addons-shallow-compare/.gitignore

@@ -0,0 +1,2 @@
+react-addons-shallow-compare.js
+react-addons-shallow-compare.min.js

addons/react-addons-shallow-compare/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present, Facebook, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/react-addons-shallow-compare/README.md

@@ -0,0 +1,53 @@
+# react-addons-shallow-compare
+
+>**Note:**
+>This is a legacy React addon, and is no longer maintained.
+>
+>We don't encourage using it in new code, but it exists for backwards compatibility.  
+>The recommended migration path is to use [`React.PureComponent`](https://facebook.github.io/react/docs/react-api.html#react.purecomponent) instead.
+
+**Importing**
+
+```javascript
+import shallowCompare from 'react-addons-shallow-compare'; // ES6
+var shallowCompare = require('react-addons-shallow-compare'); // ES5 with npm
+```
+
+If you prefer a `<script>` tag, you can get it from `React.addons.shallowCompare` with:
+
+```html
+<!-- development version -->
+<script src="https://unpkg.com/react-addons-shallow-compare/react-addons-shallow-compare.js"></script>
+
+<!-- production version -->
+<script src="https://unpkg.com/react-addons-shallow-compare/react-addons-shallow-compare.min.js"></script>
+```
+
+In this case, make sure to put the `<script>` tag after React.
+
+
+## Overview
+
+Before [`React.PureComponent`](https://facebook.github.io/react/docs/react-api.html#react.purecomponent) was introduced, `shallowCompare` was commonly used to achieve the same functionality as [`PureRenderMixin`](https://www.npmjs.com/package/react-addons-pure-render-mixin) while using ES6 classes with React.
+
+If your React component's render function is "pure" (in other words, it renders the same result given the same props and state), you can use this helper function for a performance boost in some cases.
+
+Example:
+
+```js
+export class SampleComponent extends React.Component {
+  shouldComponentUpdate(nextProps, nextState) {
+    return shallowCompare(this, nextProps, nextState);
+  }
+
+  render() {
+    return <div className={this.props.className}>foo</div>;
+  }
+}
+```
+
+`shallowCompare` performs a shallow equality check on the current `props` and `nextProps` objects as well as the current `state` and `nextState` objects.  
+It does this by iterating on the keys of the objects being compared and returning true when the values of a key in each object are not strictly equal.
+
+`shallowCompare` returns `true` if the shallow comparison for props or state fails and therefore the component should update.  
+`shallowCompare` returns `false` if the shallow comparison for props and state both pass and therefore the component does not need to update.

addons/react-addons-shallow-compare/index.js

@@ -0,0 +1,26 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @providesModule shallowCompare
+ */
+
+'use strict';
+
+var shallowEqual = require('fbjs/lib/shallowEqual');
+
+/**
+ * Does a shallow comparison for props and state.
+ * See ReactComponentWithPureRenderMixin
+ * See also https://facebook.github.io/react/docs/shallow-compare.html
+ */
+function shallowCompare(instance, nextProps, nextState) {
+  return (
+    !shallowEqual(instance.props, nextProps) ||
+    !shallowEqual(instance.state, nextState)
+  );
+}
+
+module.exports = shallowCompare;

addons/react-addons-shallow-compare/package.json

@@ -0,0 +1,35 @@
+{
+  "name": "react-addons-shallow-compare",
+  "version": "15.6.2",
+  "main": "index.js",
+  "repository": "facebook/react",
+  "keywords": [
+    "react",
+    "react-addon"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "fbjs": "^0.8.4",
+    "object-assign": "^4.1.0"
+  },
+  "files": [
+    "LICENSE",
+    "README.md",
+    "index.js",
+    "react-addons-shallow-compare.js",
+    "react-addons-shallow-compare.min.js"
+  ],
+  "scripts": {
+    "test": "TEST_ENTRY=./index.js jest",
+    "build:dev": "NODE_ENV=development webpack && TEST_ENTRY=./react-addons-shallow-compare.js jest",
+    "build:prod": "NODE_ENV=production webpack && NODE_ENV=production TEST_ENTRY=./react-addons-shallow-compare.min.js jest",
+    "build": "npm run build:dev && npm run build:prod && node ../postbuild.js",
+    "prepublish": "npm test && npm run build"
+  },
+  "devDependencies": {
+    "jest": "^19.0.2",
+    "react": "^15.4.2",
+    "react-dom": "^15.4.2",
+    "webpack": "^2.6.1"
+  }
+}

addons/react-addons-shallow-compare/test.js

@@ -0,0 +1,269 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+var React;
+var ReactDOM;
+var shallowCompare;
+
+// Catch stray warnings
+var env = jasmine.getEnv();
+var callCount = 0;
+var oldError = console.error;
+var newError = function() {
+  callCount++;
+  oldError.apply(this, arguments);
+};
+console.error = newError;
+env.beforeEach(() => {
+  callCount = 0;
+  jasmine.addMatchers({
+    toBeReset() {
+      return {
+        compare(actual) {
+          if (actual !== newError && !jasmine.isSpy(actual)) {
+            return {
+              pass: false,
+              message: 'Test did not tear down console.error mock properly.'
+            };
+          }
+          return {pass: true};
+        }
+      };
+    },
+    toNotHaveBeenCalled() {
+      return {
+        compare(actual) {
+          return {
+            pass: callCount === 0,
+            message:
+              'Expected test not to warn. If the warning is expected, mock ' +
+                "it out using spyOn(console, 'error'); and test that the " +
+                'warning occurs.'
+          };
+        }
+      };
+    }
+  });
+});
+env.afterEach(() => {
+  expect(console.error).toBeReset();
+  expect(console.error).toNotHaveBeenCalled();
+});
+
+function renderIntoDocument(element) {
+  var node = document.createElement('div');
+  return ReactDOM.render(element, node);
+}
+
+// Tests adapted from ReactComponentWithPureRendererMixin and ReactPureComponent tests
+describe('shallowCompare', () => {
+  beforeEach(() => {
+    React = require('react');
+    ReactDOM = require('react-dom');
+    shallowCompare = require(process.env.TEST_ENTRY);
+  });
+
+  it('should render', () => {
+    var renders = 0;
+    class Component extends React.Component {
+      constructor() {
+        super();
+        this.state = {type: 'mushrooms'};
+      }
+      render() {
+        renders++;
+        return React.createElement('div', null, this.props.text[0]);
+      }
+      shouldComponentUpdate(nextProps, nextState) {
+        return shallowCompare(this, nextProps, nextState);
+      }
+    }
+
+    var container = document.createElement('div');
+    var text;
+    var component;
+
+    text = ['porcini'];
+    component = ReactDOM.render(
+      React.createElement(Component, {text}),
+      container
+    );
+    expect(container.textContent).toBe('porcini');
+    expect(renders).toBe(1);
+
+    text = ['morel'];
+    component = ReactDOM.render(
+      React.createElement(Component, {text}),
+      container
+    );
+    expect(container.textContent).toBe('morel');
+    expect(renders).toBe(2);
+
+    text[0] = 'portobello';
+    component = ReactDOM.render(
+      React.createElement(Component, {text}),
+      container
+    );
+    expect(container.textContent).toBe('morel');
+    expect(renders).toBe(2);
+
+    // Setting state without changing it doesn't cause a rerender.
+    component.setState({type: 'mushrooms'});
+    expect(container.textContent).toBe('morel');
+    expect(renders).toBe(2);
+
+    // But changing state does.
+    component.setState({type: 'portobello mushrooms'});
+    expect(container.textContent).toBe('portobello');
+    expect(renders).toBe(3);
+  });
+
+  it('can override shouldComponentUpdate', () => {
+    var renders = 0;
+    class Component extends React.PureComponent {
+      render() {
+        renders++;
+        return React.createElement('div');
+      }
+      shouldComponentUpdate() {
+        return true;
+      }
+    }
+    var container = document.createElement('div');
+    ReactDOM.render(React.createElement(Component), container);
+    ReactDOM.render(React.createElement(Component), container);
+    expect(renders).toBe(2);
+  });
+
+  it('provides a default shouldComponentUpdate implementation', () => {
+    var renderCalls = 0;
+    class PlasticWrap extends React.Component {
+      constructor(props, context) {
+        super(props, context);
+        this.state = {
+          color: 'green'
+        };
+      }
+
+      shouldComponentUpdate(nextProps, nextState) {
+        return shallowCompare(this, nextProps, nextState);
+      }
+
+      render() {
+        return React.createElement(Apple, {
+          color: this.state.color,
+          ref: 'apple'
+        });
+      }
+    }
+
+    var Apple = React.createClass({
+      getInitialState: function() {
+        return {
+          cut: false,
+          slices: 1
+        };
+      },
+
+      cut: function() {
+        this.setState({
+          cut: true,
+          slices: 10
+        });
+      },
+
+      eatSlice: function() {
+        this.setState({
+          slices: this.state.slices - 1
+        });
+      },
+
+      shouldComponentUpdate(nextProps, nextState) {
+        return shallowCompare(this, nextProps, nextState);
+      },
+
+      render: function() {
+        renderCalls++;
+        return React.createElement('div');
+      }
+    });
+
+    var instance = renderIntoDocument(React.createElement(PlasticWrap));
+    expect(renderCalls).toBe(1);
+
+    // Do not re-render based on props
+    instance.setState({color: 'green'});
+    expect(renderCalls).toBe(1);
+
+    // Re-render based on props
+    instance.setState({color: 'red'});
+    expect(renderCalls).toBe(2);
+
+    // Re-render base on state
+    instance.refs.apple.cut();
+    expect(renderCalls).toBe(3);
+
+    // No re-render based on state
+    instance.refs.apple.cut();
+    expect(renderCalls).toBe(3);
+
+    // Re-render based on state again
+    instance.refs.apple.eatSlice();
+    expect(renderCalls).toBe(4);
+  });
+
+  it('does not do a deep comparison', () => {
+    function getInitialState() {
+      return {
+        foo: [1, 2, 3],
+        bar: {a: 4, b: 5, c: 6}
+      };
+    }
+
+    var renderCalls = 0;
+    var initialSettings = getInitialState();
+
+    var Component = React.createClass({
+      shouldComponentUpdate(nextProps, nextState) {
+        return shallowCompare(this, nextProps, nextState);
+      },
+
+      getInitialState: function() {
+        return initialSettings;
+      },
+
+      render: function() {
+        renderCalls++;
+        return React.createElement('div');
+      }
+    });
+
+    var instance = renderIntoDocument(React.createElement(Component));
+    expect(renderCalls).toBe(1);
+
+    // Do not re-render if state is equal
+    var settings = {
+      foo: initialSettings.foo,
+      bar: initialSettings.bar
+    };
+    instance.setState(settings);
+    expect(renderCalls).toBe(1);
+
+    // Re-render because one field changed
+    initialSettings.foo = [1, 2, 3];
+    instance.setState(initialSettings);
+    expect(renderCalls).toBe(2);
+
+    // Re-render because the object changed
+    instance.setState(getInitialState());
+    expect(renderCalls).toBe(3);
+  });
+});

addons/react-addons-shallow-compare/webpack.config.js

@@ -0,0 +1,53 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+const webpack = require('webpack');
+
+let __DEV__;
+switch (process.env.NODE_ENV) {
+  case 'development':
+    __DEV__ = true;
+    break;
+  case 'production':
+    __DEV__ = false;
+    break;
+  default:
+    throw new Error('Unknown environment.');
+}
+
+module.exports = {
+  entry: './index',
+  output: {
+    library: 'shallowCompare',
+    libraryTarget: 'umd',
+    filename: __DEV__
+      ? 'react-addons-shallow-compare.js'
+      : 'react-addons-shallow-compare.min.js'
+  },
+  plugins: [
+    new webpack.DefinePlugin({
+      'process.env.NODE_ENV': __DEV__ ? '"development"' : '"production"'
+    })
+  ].concat(
+    __DEV__
+      ? []
+      : [
+          new webpack.optimize.UglifyJsPlugin({
+            compress: {
+              warnings: false
+            },
+            output: {
+              comments: false
+            }
+          })
+        ]
+  )
+};

addons/react-addons-test-utils/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present, Facebook, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/react-addons-test-utils/README.md

@@ -0,0 +1,9 @@
+# react-addons-test-utils
+
+This package provides the React TestUtils add-on.
+
+See <https://facebook.github.io/react/docs/test-utils.html> for more information.
+
+This package is deprecated as of version 15.5.0:
+* TestUtils have been moved to `react-dom/test-utils`
+* Shallow renderer has been moved to `react-test-renderer/shallow`

addons/react-addons-test-utils/index.js

@@ -0,0 +1,73 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+var lowPriorityWarning = function lowPriorityWarning() {};
+
+if (process.env.NODE_ENV !== 'production') {
+  var printWarning = function(format) {
+    for (
+      var _len = arguments.length,
+        args = Array(_len > 1 ? _len - 1 : 0),
+        _key = 1;
+      _key < _len;
+      _key++
+    ) {
+      args[_key - 1] = arguments[_key];
+    }
+
+    var argIndex = 0;
+    var message =
+      'Warning: ' +
+      format.replace(/%s/g, function() {
+        return args[argIndex++];
+      });
+    if (typeof console !== 'undefined') {
+      console.warn(message);
+    }
+    try {
+      // --- Welcome to debugging React ---
+      // This error was thrown as a convenience so that you can use this stack
+      // to find the callsite that caused this warning to fire.
+      throw new Error(message);
+    } catch (x) {}
+  };
+
+  lowPriorityWarning = function(condition, format) {
+    if (format === undefined) {
+      throw new Error(
+        '`warning(condition, format, ...args)` requires a warning ' +
+          'message argument'
+      );
+    }
+    if (!condition) {
+      for (
+        var _len2 = arguments.length,
+          args = Array(_len2 > 2 ? _len2 - 2 : 0),
+          _key2 = 2;
+        _key2 < _len2;
+        _key2++
+      ) {
+        args[_key2 - 2] = arguments[_key2];
+      }
+
+      printWarning.apply(undefined, [format].concat(args));
+    }
+  };
+}
+
+// This package has been deprecated in NPM as of version 15.5.0
+// But NPM deprecation warnings are easy to overlook
+// So a more explicit runtime warning seemed appropriate
+lowPriorityWarning(
+  false,
+  'ReactTestUtils has been moved to react-dom/test-utils. ' +
+    'Update references to remove this warning.'
+);
+
+module.exports = require('react-dom/lib/ReactTestUtils');

addons/react-addons-test-utils/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "react-addons-test-utils",
+  "version": "15.6.2",
+  "main": "index.js",
+  "repository": "facebook/react",
+  "keywords": [
+    "react",
+    "react-addon"
+  ],
+  "license": "MIT",
+  "peerDependencies": {
+    "react-dom": "^15.4.2"
+  },
+  "scripts": {
+    "test": "jest",
+    "prepublish": "npm test"
+  },
+  "devDependencies": {
+    "jest": "^19.0.2",
+    "react": "^15.4.2",
+    "react-dom": "^15.4.2"
+  },
+  "files": [
+    "LICENSE",
+    "README.md",
+    "index.js"
+  ]
+}

addons/react-addons-test-utils/test.js

@@ -0,0 +1,56 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+describe('ReactTestUtils', function() {
+  let React;
+
+  beforeEach(function() {
+    spyOn(console, 'warn');
+    React = require('react');
+  });
+
+  it('should warn on include', function() {
+    require('./index');
+    expect(console.warn).toHaveBeenCalledWith(
+      'Warning: ReactTestUtils has been moved to react-dom/test-utils. ' +
+        'Update references to remove this warning.'
+    );
+  });
+
+  it('should pass a basic smoke test', function() {
+    const ReactTestUtils = require('./index');
+    const onClick = jest.fn();
+
+    class MyComponent extends React.Component {
+      constructor(props, context) {
+        super(props, context);
+        this.state = {bar: 123};
+      }
+      render() {
+        return <div onClick={onClick}>{this.props.baz}</div>;
+      }
+    }
+
+    const instance = ReactTestUtils.renderIntoDocument(
+      <MyComponent baz="abc" />
+    );
+
+    expect(instance.state.bar).toBe(123);
+    expect(instance.props.baz).toBe('abc');
+
+    const div = ReactTestUtils.findRenderedDOMComponentWithTag(instance, 'div');
+    expect(div.textContent).toBe('abc');
+
+    expect(onClick).not.toHaveBeenCalled();
+    ReactTestUtils.Simulate.click(div);
+    expect(onClick).toHaveBeenCalled();
+  });
+});

addons/react-addons-transition-group/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present, Facebook, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/react-addons-transition-group/README.md

@@ -0,0 +1,17 @@
+# react-addons-transition-group
+
+The code in this package has moved. We recommend you to use `TransitionGroup` from [`react-transition-group`](https://github.com/reactjs/react-transition-group) instead.
+
+In particular, its version `1.x` is a drop-in replacement for the last released version of `react-addons-transition-group`.
+
+Run `npm install --save react-transition-group@1.x`, and replace the imports in your code:
+
+```js
+// Old
+import TransitionGroup from 'react-addons-transition-group';
+
+// New
+import TransitionGroup from 'react-transition-group/TransitionGroup';
+```
+
+The documentation branch for `react-transition-group@1.x` [can be found here](https://github.com/reactjs/react-transition-group/tree/v1-stable#low-level-api-transitiongroup).

addons/react-addons-transition-group/index.js

@@ -0,0 +1,10 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+module.exports = require('react-transition-group/TransitionGroup');

addons/react-addons-transition-group/package.json

@@ -0,0 +1,25 @@
+{
+  "name": "react-addons-transition-group",
+  "version": "15.6.2",
+  "main": "index.js",
+  "repository": "facebook/react",
+  "keywords": [
+    "react",
+    "react-addon"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "react-transition-group": "^1.2.0"
+  },
+  "peerDependencies": {
+    "react": "^15.4.2"
+  },
+  "scripts": {
+    "prepublish": ":"
+  },
+  "files": [
+    "LICENSE",
+    "README.md",
+    "index.js"
+  ]
+}

addons/react-addons-transition-group/yarn.lock

@@ -0,0 +1,114 @@
+# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
+# yarn lockfile v1
+
+
+asap@~2.0.3:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.5.tgz#522765b50c3510490e52d7dcfe085ef9ba96958f"
+
+chain-function@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/chain-function/-/chain-function-1.0.0.tgz#0d4ab37e7e18ead0bdc47b920764118ce58733dc"
+
+core-js@^1.0.0:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-1.2.7.tgz#652294c14651db28fa93bd2d5ff2983a4f08c636"
+
+dom-helpers@^3.2.0:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/dom-helpers/-/dom-helpers-3.2.1.tgz#3203e07fed217bd1f424b019735582fc37b2825a"
+
+encoding@^0.1.11:
+  version "0.1.12"
+  resolved "https://registry.yarnpkg.com/encoding/-/encoding-0.1.12.tgz#538b66f3ee62cd1ab51ec323829d1f9480c74beb"
+  dependencies:
+    iconv-lite "~0.4.13"
+
+fbjs@^0.8.9:
+  version "0.8.12"
+  resolved "https://registry.yarnpkg.com/fbjs/-/fbjs-0.8.12.tgz#10b5d92f76d45575fd63a217d4ea02bea2f8ed04"
+  dependencies:
+    core-js "^1.0.0"
+    isomorphic-fetch "^2.1.1"
+    loose-envify "^1.0.0"
+    object-assign "^4.1.0"
+    promise "^7.1.1"
+    setimmediate "^1.0.5"
+    ua-parser-js "^0.7.9"
+
+iconv-lite@~0.4.13:
+  version "0.4.17"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.17.tgz#4fdaa3b38acbc2c031b045d0edcdfe1ecab18c8d"
+
+is-stream@^1.0.1:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/is-stream/-/is-stream-1.1.0.tgz#12d4a3dd4e68e0b79ceb8dbc84173ae80d91ca44"
+
+isomorphic-fetch@^2.1.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/isomorphic-fetch/-/isomorphic-fetch-2.2.1.tgz#611ae1acf14f5e81f729507472819fe9733558a9"
+  dependencies:
+    node-fetch "^1.0.1"
+    whatwg-fetch ">=0.10.0"
+
+js-tokens@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.1.tgz#08e9f132484a2c45a30907e9dc4d5567b7f114d7"
+
+loose-envify@^1.0.0, loose-envify@^1.3.1:
+  version "1.3.1"
+  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.3.1.tgz#d1a8ad33fa9ce0e713d65fdd0ac8b748d478c848"
+  dependencies:
+    js-tokens "^3.0.0"
+
+node-fetch@^1.0.1:
+  version "1.7.1"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.1.tgz#899cb3d0a3c92f952c47f1b876f4c8aeabd400d5"
+  dependencies:
+    encoding "^0.1.11"
+    is-stream "^1.0.1"
+
+object-assign@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
+
+promise@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/promise/-/promise-7.1.1.tgz#489654c692616b8aa55b0724fa809bb7db49c5bf"
+  dependencies:
+    asap "~2.0.3"
+
+prop-types@^15.5.6:
+  version "15.5.10"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.5.10.tgz#2797dfc3126182e3a95e3dfbb2e893ddd7456154"
+  dependencies:
+    fbjs "^0.8.9"
+    loose-envify "^1.3.1"
+
+react-transition-group@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/react-transition-group/-/react-transition-group-1.2.0.tgz#b51fc921b0c3835a7ef7c571c79fc82c73e9204f"
+  dependencies:
+    chain-function "^1.0.0"
+    dom-helpers "^3.2.0"
+    loose-envify "^1.3.1"
+    prop-types "^15.5.6"
+    warning "^3.0.0"
+
+setimmediate@^1.0.5:
+  version "1.0.5"
+  resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"
+
+ua-parser-js@^0.7.9:
+  version "0.7.12"
+  resolved "https://registry.yarnpkg.com/ua-parser-js/-/ua-parser-js-0.7.12.tgz#04c81a99bdd5dc52263ea29d24c6bf8d4818a4bb"
+
+warning@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/warning/-/warning-3.0.0.tgz#32e5377cb572de4ab04753bdf8821c01ed605b7c"
+  dependencies:
+    loose-envify "^1.0.0"
+
+whatwg-fetch@>=0.10.0:
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/whatwg-fetch/-/whatwg-fetch-2.0.3.tgz#9c84ec2dcf68187ff00bc64e1274b442176e1c84"

addons/react-addons-update/.gitignore

@@ -0,0 +1,2 @@
+react-addons-update.js
+react-addons-update.min.js

addons/react-addons-update/LICENSE.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present, Facebook, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/react-addons-update/README.md

@@ -0,0 +1,125 @@
+# react-addons-update
+
+>**Note:**
+>This is a legacy React addon, and is no longer maintained.
+>
+>We don't encourage using it in new code, but it exists for backwards compatibility.  
+>The recommended migration path is to use [`immutability-helper`](https://github.com/kolodny/immutability-helper). Its version `1.0.0` is a drop-in replacement.
+
+**Importing**
+
+```javascript
+import update from 'react-addons-update'; // ES6
+var update = require('react-addons-update'); // ES5 with npm
+```
+
+If you prefer a `<script>` tag, you can get it from `React.addons.update` with:
+
+```html
+<!-- development version -->
+<script src="https://unpkg.com/react-addons-update/react-addons-update.js"></script>
+
+<!-- production version -->
+<script src="https://unpkg.com/react-addons-update/react-addons-update.min.js"></script>
+```
+
+In this case, make sure to put the `<script>` tag after React.
+
+## Overview
+
+React lets you use whatever style of data management you want, including mutation. However, if you can use immutable data in performance-critical parts of your application it's easy to implement a fast [`shouldComponentUpdate()`](https://facebook.github.io/react/docs/react-component.html#shouldcomponentupdate) method to significantly speed up your app.
+
+Dealing with immutable data in JavaScript is more difficult than in languages designed for it, like [Clojure](http://clojure.org/). However, we've provided a simple immutability helper, `update()`, that makes dealing with this type of data much easier, *without* fundamentally changing how your data is represented. You can also take a look at Facebook's [Immutable-js](https://facebook.github.io/immutable-js/docs/) and the [Optimizing Performance](https://facebook.github.io/react/docs/optimizing-performance.html) section for more detail on Immutable-js.
+
+### The Main Idea
+
+If you mutate data like this:
+
+```js
+myData.x.y.z = 7;
+// or...
+myData.a.b.push(9);
+```
+
+You have no way of determining which data has changed since the previous copy has been overwritten. Instead, you need to create a new copy of `myData` and change only the parts of it that need to be changed. Then you can compare the old copy of `myData` with the new one in `shouldComponentUpdate()` using triple-equals:
+
+```js
+const newData = deepCopy(myData);
+newData.x.y.z = 7;
+newData.a.b.push(9);
+```
+
+Unfortunately, deep copies are expensive, and sometimes impossible. You can alleviate this by only copying objects that need to be changed and by reusing the objects that haven't changed. Unfortunately, in today's JavaScript this can be cumbersome:
+
+```js
+const newData = extend(myData, {
+  x: extend(myData.x, {
+    y: extend(myData.x.y, {z: 7}),
+  }),
+  a: extend(myData.a, {b: myData.a.b.concat(9)})
+});
+```
+
+While this is fairly performant (since it only makes a shallow copy of `log n` objects and reuses the rest), it's a big pain to write. Look at all the repetition! This is not only annoying, but also provides a large surface area for bugs.
+
+## `update()`
+
+`update()` provides simple syntactic sugar around this pattern to make writing this code easier. This code becomes:
+
+```js
+import update from 'react-addons-update';
+
+const newData = update(myData, {
+  x: {y: {z: {$set: 7}}},
+  a: {b: {$push: [9]}}
+});
+```
+
+While the syntax takes a little getting used to (though it's inspired by [MongoDB's query language](http://docs.mongodb.org/manual/core/crud-introduction/#query)) there's no redundancy, it's statically analyzable and it's not much more typing than the mutative version.
+
+The `$`-prefixed keys are called *commands*. The data structure they are "mutating" is called the *target*.
+
+## Available Commands
+
+  * `{$push: array}` `push()` all the items in `array` on the target.
+  * `{$unshift: array}` `unshift()` all the items in `array` on the target.
+  * `{$splice: array of arrays}` for each item in `arrays` call `splice()` on the target with the parameters provided by the item.
+  * `{$set: any}` replace the target entirely.
+  * `{$merge: object}` merge the keys of `object` with the target.
+  * `{$apply: function}` passes in the current value to the function and updates it with the new returned value.
+
+## Examples
+
+### Simple push
+
+```js
+const initialArray = [1, 2, 3];
+const newArray = update(initialArray, {$push: [4]}); // => [1, 2, 3, 4]
+```
+`initialArray` is still `[1, 2, 3]`.
+
+### Nested collections
+
+```js
+const collection = [1, 2, {a: [12, 17, 15]}];
+const newCollection = update(collection, {2: {a: {$splice: [[1, 1, 13, 14]]}}});
+// => [1, 2, {a: [12, 13, 14, 15]}]
+```
+This accesses `collection`'s index `2`, key `a`, and does a splice of one item starting from index `1` (to remove `17`) while inserting `13` and `14`.
+
+### Updating a value based on its current one
+
+```js
+const obj = {a: 5, b: 3};
+const newObj = update(obj, {b: {$apply: function(x) {return x * 2;}}});
+// => {a: 5, b: 6}
+// This is equivalent, but gets verbose for deeply nested collections:
+const newObj2 = update(obj, {b: {$set: obj.b * 2}});
+```
+
+### (Shallow) Merge
+
+```js
+const obj = {a: 5, b: 3};
+const newObj = update(obj, {$merge: {b: 6, c: 7}}); // => {a: 5, b: 6, c: 7}
+```

addons/react-addons-update/index.js

@@ -0,0 +1,164 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+var _assign = require('object-assign');
+var invariant = require('fbjs/lib/invariant');
+var hasOwnProperty = {}.hasOwnProperty;
+
+function shallowCopy(x) {
+  if (Array.isArray(x)) {
+    return x.concat();
+  } else if (x && typeof x === 'object') {
+    return _assign(new x.constructor(), x);
+  } else {
+    return x;
+  }
+}
+
+var COMMAND_PUSH = '$push';
+var COMMAND_UNSHIFT = '$unshift';
+var COMMAND_SPLICE = '$splice';
+var COMMAND_SET = '$set';
+var COMMAND_MERGE = '$merge';
+var COMMAND_APPLY = '$apply';
+
+var ALL_COMMANDS_LIST = [
+  COMMAND_PUSH,
+  COMMAND_UNSHIFT,
+  COMMAND_SPLICE,
+  COMMAND_SET,
+  COMMAND_MERGE,
+  COMMAND_APPLY
+];
+
+var ALL_COMMANDS_SET = {};
+
+ALL_COMMANDS_LIST.forEach(function(command) {
+  ALL_COMMANDS_SET[command] = true;
+});
+
+function invariantArrayCase(value, spec, command) {
+  invariant(
+    Array.isArray(value),
+    'update(): expected target of %s to be an array; got %s.',
+    command,
+    value
+  );
+  var specValue = spec[command];
+  invariant(
+    Array.isArray(specValue),
+    'update(): expected spec of %s to be an array; got %s. ' +
+      'Did you forget to wrap your parameter in an array?',
+    command,
+    specValue
+  );
+}
+
+/**
+ * Returns a updated shallow copy of an object without mutating the original.
+ * See https://facebook.github.io/react/docs/update.html for details.
+ */
+function update(value, spec) {
+  invariant(
+    typeof spec === 'object',
+    'update(): You provided a key path to update() that did not contain one ' +
+      'of %s. Did you forget to include {%s: ...}?',
+    ALL_COMMANDS_LIST.join(', '),
+    COMMAND_SET
+  );
+
+  if (hasOwnProperty.call(spec, COMMAND_SET)) {
+    invariant(
+      Object.keys(spec).length === 1,
+      'Cannot have more than one key in an object with %s',
+      COMMAND_SET
+    );
+
+    return spec[COMMAND_SET];
+  }
+
+  var nextValue = shallowCopy(value);
+
+  if (hasOwnProperty.call(spec, COMMAND_MERGE)) {
+    var mergeObj = spec[COMMAND_MERGE];
+    invariant(
+      mergeObj && typeof mergeObj === 'object',
+      "update(): %s expects a spec of type 'object'; got %s",
+      COMMAND_MERGE,
+      mergeObj
+    );
+    invariant(
+      nextValue && typeof nextValue === 'object',
+      "update(): %s expects a target of type 'object'; got %s",
+      COMMAND_MERGE,
+      nextValue
+    );
+    _assign(nextValue, spec[COMMAND_MERGE]);
+  }
+
+  if (hasOwnProperty.call(spec, COMMAND_PUSH)) {
+    invariantArrayCase(value, spec, COMMAND_PUSH);
+    spec[COMMAND_PUSH].forEach(function(item) {
+      nextValue.push(item);
+    });
+  }
+
+  if (hasOwnProperty.call(spec, COMMAND_UNSHIFT)) {
+    invariantArrayCase(value, spec, COMMAND_UNSHIFT);
+    spec[COMMAND_UNSHIFT].forEach(function(item) {
+      nextValue.unshift(item);
+    });
+  }
+
+  if (hasOwnProperty.call(spec, COMMAND_SPLICE)) {
+    invariant(
+      Array.isArray(value),
+      'Expected %s target to be an array; got %s',
+      COMMAND_SPLICE,
+      value
+    );
+    invariant(
+      Array.isArray(spec[COMMAND_SPLICE]),
+      'update(): expected spec of %s to be an array of arrays; got %s. ' +
+        'Did you forget to wrap your parameters in an array?',
+      COMMAND_SPLICE,
+      spec[COMMAND_SPLICE]
+    );
+    spec[COMMAND_SPLICE].forEach(function(args) {
+      invariant(
+        Array.isArray(args),
+        'update(): expected spec of %s to be an array of arrays; got %s. ' +
+          'Did you forget to wrap your parameters in an array?',
+        COMMAND_SPLICE,
+        spec[COMMAND_SPLICE]
+      );
+      nextValue.splice.apply(nextValue, args);
+    });
+  }
+
+  if (hasOwnProperty.call(spec, COMMAND_APPLY)) {
+    invariant(
+      typeof spec[COMMAND_APPLY] === 'function',
+      'update(): expected spec of %s to be a function; got %s.',
+      COMMAND_APPLY,
+      spec[COMMAND_APPLY]
+    );
+    nextValue = spec[COMMAND_APPLY](nextValue);
+  }
+
+  for (var k in spec) {
+    if (!(ALL_COMMANDS_SET.hasOwnProperty(k) && ALL_COMMANDS_SET[k])) {
+      nextValue[k] = update(value[k], spec[k]);
+    }
+  }
+
+  return nextValue;
+}
+
+module.exports = update;

addons/react-addons-update/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "react-addons-update",
+  "version": "15.6.2",
+  "main": "index.js",
+  "repository": "facebook/react",
+  "keywords": [
+    "react",
+    "react-addon"
+  ],
+  "license": "MIT",
+  "dependencies": {
+    "fbjs": "^0.8.9",
+    "object-assign": "^4.1.0"
+  },
+  "devDependencies": {
+    "jest": "^19.0.2",
+    "webpack": "^2.6.1"
+  },
+  "scripts": {
+    "test": "TEST_ENTRY=./index.js jest",
+    "build:dev": "NODE_ENV=development webpack && TEST_ENTRY=./react-addons-update.js jest",
+    "build:prod": "NODE_ENV=production webpack && NODE_ENV=production TEST_ENTRY=./react-addons-update.min.js jest",
+    "build": "npm run build:dev && npm run build:prod && node ../postbuild.js",
+    "prepublish": "npm test && npm run build"
+  },
+  "files": [
+    "LICENSE",
+    "README.md",
+    "index.js",
+    "react-addons-update.js",
+    "react-addons-update.min.js"
+  ]
+}

addons/react-addons-update/test.js

@@ -0,0 +1,110 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+// Catch stray warnings
+var env = jasmine.getEnv();
+var callCount = 0;
+var oldError = console.error;
+var newError = function() {
+  callCount++;
+  oldError.apply(this, arguments);
+};
+console.error = newError;
+env.beforeEach(() => {
+  callCount = 0;
+  jasmine.addMatchers({
+    toBeReset() {
+      return {
+        compare(actual) {
+          if (actual !== newError && !jasmine.isSpy(actual)) {
+            return {
+              pass: false,
+              message: 'Test did not tear down console.error mock properly.'
+            };
+          }
+          return {pass: true};
+        }
+      };
+    },
+    toNotHaveBeenCalled() {
+      return {
+        compare(actual) {
+          return {
+            pass: callCount === 0,
+            message:
+              'Expected test not to warn. If the warning is expected, mock ' +
+                "it out using spyOn(console, 'error'); and test that the " +
+                'warning occurs.'
+          };
+        }
+      };
+    }
+  });
+});
+env.afterEach(() => {
+  expect(console.error).toBeReset();
+  expect(console.error).toNotHaveBeenCalled();
+});
+
+const update = require(process.env.TEST_ENTRY);
+
+describe('update', () => {
+  // https://facebook.github.io/react/docs/update.html#simple-push
+  it('should support simple push', () => {
+    const array = [1, 2, 3];
+
+    const newArray = update(array, {$push: [4]});
+    expect(array).toEqual([1, 2, 3]);
+
+    expect(newArray).toEqual([1, 2, 3, 4]);
+  });
+
+  // https://facebook.github.io/react/docs/update.html#nested-collections
+  it('should support nested collections', () => {
+    const collection = [1, 2, {a: [12, 17, 15]}];
+
+    const newCollection = update(collection, {
+      2: {a: {$splice: [[1, 1, 13, 14]]}}
+    });
+    expect(collection).toEqual([1, 2, {a: [12, 17, 15]}]);
+
+    expect(newCollection).toEqual([1, 2, {a: [12, 13, 14, 15]}]);
+  });
+
+  // https://facebook.github.io/react/docs/update.html#updating-a-value-based-on-its-current-one
+  it('should support updating a value based on its current one', () => {
+    const obj = {a: 5, b: 3};
+
+    const newObj = update(obj, {
+      b: {
+        $apply: function(x) {
+          return x * 2;
+        }
+      }
+    });
+    expect(newObj).toEqual({a: 5, b: 6});
+
+    const newObj2 = update(obj, {b: {$set: obj.b * 2}});
+    expect(newObj2).toEqual({a: 5, b: 6});
+
+    expect(obj).toEqual({a: 5, b: 3});
+  });
+
+  // https://facebook.github.io/react/docs/update.html#shallow-merge
+  it('should support shallow merge', () => {
+    const obj = {a: 5, b: 3};
+
+    const newObj = update(obj, {$merge: {b: 6, c: 7}});
+    expect(newObj).toEqual({a: 5, b: 6, c: 7});
+
+    expect(obj).toEqual({a: 5, b: 3});
+  });
+});

addons/react-addons-update/webpack.config.js

@@ -0,0 +1,51 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @emails react-core
+ */
+
+'use strict';
+
+const webpack = require('webpack');
+
+let __DEV__;
+switch (process.env.NODE_ENV) {
+  case 'development':
+    __DEV__ = true;
+    break;
+  case 'production':
+    __DEV__ = false;
+    break;
+  default:
+    throw new Error('Unknown environment.');
+}
+
+module.exports = {
+  entry: './index',
+  output: {
+    library: 'update',
+    libraryTarget: 'umd',
+    filename: __DEV__ ? 'react-addons-update.js' : 'react-addons-update.min.js'
+  },
+  plugins: [
+    new webpack.DefinePlugin({
+      'process.env.NODE_ENV': __DEV__ ? '"development"' : '"production"'
+    })
+  ].concat(
+    __DEV__
+      ? []
+      : [
+          new webpack.optimize.UglifyJsPlugin({
+            compress: {
+              warnings: false
+            },
+            output: {
+              comments: false
+            }
+          })
+        ]
+  )
+};

addons/react-linked-input/.gitignore

@@ -0,0 +1,2 @@
+react-linked-input.js
+react-linked-input.min.js

addons/react-linked-input/LICENSE.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2013-present, Facebook, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

addons/react-linked-input/README.md

@@ -0,0 +1,11 @@
+# react-linked-input
+
+>**Note:**
+>This is a legacy React addon, and is no longer maintained.
+>
+>We don't encourage using it in new code, but it exists for backwards compatibility.  
+>The recommended migration path is to set `value` and `onChange` props directly instead of `valueLink` or `checkedLink`.
+
+This component supports the legacy `valueLink` API for `<input>` components. The built-in support for it is being removed from React. This component may be used as a migration plan (so your code doesn't break in React 16) or may be used if you just like the `valueLink` data binding semantics. However, this component is not maintained, so use at your own risk.
+
+For details on how to use it, refer to the [`LinkedStateMixin`](https://www.npmjs.com/package/react-addons-linked-state-mixin) documentation, since they usually appear together.

addons/react-linked-input/index.js

@@ -0,0 +1,165 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+var React = require('react');
+
+if (typeof React === 'undefined') {
+  throw Error(
+    'react-linked-input could not find the React object. If you are using script tags, ' +
+      'make sure that React is being loaded before react-linked-input.'
+  );
+}
+
+var invariant = require('fbjs/lib/invariant');
+
+function _assertSingleLink(inputProps) {
+  invariant(
+    inputProps.checkedLink == null || inputProps.valueLink == null,
+    'Cannot provide a checkedLink and a valueLink. If you want to use ' +
+      "checkedLink, you probably don't want to use valueLink and vice versa."
+  );
+}
+function _assertValueLink(inputProps) {
+  _assertSingleLink(inputProps);
+  invariant(
+    inputProps.value == null && inputProps.onChange == null,
+    'Cannot provide a valueLink and a value or onChange event. If you want ' +
+      "to use value or onChange, you probably don't want to use valueLink."
+  );
+}
+
+function _assertCheckedLink(inputProps) {
+  _assertSingleLink(inputProps);
+  invariant(
+    inputProps.checked == null && inputProps.onChange == null,
+    'Cannot provide a checkedLink and a checked property or onChange event. ' +
+      "If you want to use checked or onChange, you probably don't want to " +
+      'use checkedLink'
+  );
+}
+
+/**
+ * Provide a linked `value` attribute for controlled forms. You should not use
+ * this outside of the ReactDOM controlled form components.
+ */
+var LinkedValueUtils = {
+  /**
+   * @param {object} inputProps Props for form component
+   * @return {*} current value of the input either from value prop or link.
+   */
+  getValue: function(inputProps) {
+    if (inputProps.valueLink) {
+      _assertValueLink(inputProps);
+      return inputProps.valueLink.value;
+    }
+    return inputProps.value;
+  },
+
+  /**
+   * @param {object} inputProps Props for form component
+   * @return {*} current checked status of the input either from checked prop
+   *             or link.
+   */
+  getChecked: function(inputProps) {
+    if (inputProps.checkedLink) {
+      _assertCheckedLink(inputProps);
+      return inputProps.checkedLink.value;
+    }
+    return inputProps.checked;
+  },
+
+  /**
+   * @param {object} inputProps Props for form component
+   * @param {SyntheticEvent} event change event to handle
+   */
+  executeOnChange: function(inputProps, event) {
+    if (inputProps.valueLink) {
+      _assertValueLink(inputProps);
+      return inputProps.valueLink.requestChange(event.target.value);
+    } else if (inputProps.checkedLink) {
+      _assertCheckedLink(inputProps);
+      return inputProps.checkedLink.requestChange(event.target.checked);
+    } else if (inputProps.onChange) {
+      return inputProps.onChange.call(undefined, event);
+    }
+  }
+};
+
+function _classCallCheck(instance, Constructor) {
+  if (!(instance instanceof Constructor)) {
+    throw new TypeError('Cannot call a class as a function');
+  }
+}
+
+function _possibleConstructorReturn(self, call) {
+  if (!self) {
+    throw new ReferenceError(
+      "this hasn't been initialised - super() hasn't been called"
+    );
+  }
+  return call && (typeof call === 'object' || typeof call === 'function')
+    ? call
+    : self;
+}
+
+function _inherits(subClass, superClass) {
+  if (typeof superClass !== 'function' && superClass !== null) {
+    throw new TypeError(
+      'Super expression must either be null or a function, not ' +
+        typeof superClass
+    );
+  }
+  subClass.prototype = Object.create(superClass && superClass.prototype, {
+    constructor: {
+      value: subClass,
+      enumerable: false,
+      writable: true,
+      configurable: true
+    }
+  });
+  if (superClass) {
+    if (Object.setPrototypeOf) {
+      Object.setPrototypeOf(subClass, superClass);
+    } else {
+      // eslint-disable-next-line no-proto
+      subClass.__proto__ = superClass;
+    }
+  }
+}
+
+var LI = (function(_React$Component) {
+  _inherits(LinkedInput, _React$Component);
+
+  function LinkedInput() {
+    _classCallCheck(this, LinkedInput);
+
+    var _this = _possibleConstructorReturn(this, _React$Component.call(this));
+
+    _this.handleChange = _this.handleChange.bind(_this);
+    return _this;
+  }
+
+  LinkedInput.prototype.handleChange = function handleChange(e) {
+    LinkedValueUtils.executeOnChange(this.props, e);
+  };
+
+  LinkedInput.prototype.render = function render() {
+    var newProps = Object.assign({}, this.props);
+    newProps.value = LinkedValueUtils.getValue(this.props);
+    newProps.checked = LinkedValueUtils.getChecked(this.props);
+    newProps.onChange = this.handleChange;
+    delete newProps.valueLink;
+    delete newProps.checkedLink;
+    return React.createElement('input', newProps);
+  };
+
+  return LinkedInput;
+})(React.Component);
+
+module.exports = LI;

addons/react-linked-input/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "react-linked-input",
+  "version": "15.6.2",
+  "description": "LinkedInput supports the ReactLink semantics",
+  "main": "index.js",
+  "scripts": {
+    "test": "TEST_ENTRY=./index.js jest",
+    "build:dev": "NODE_ENV=development webpack && TEST_ENTRY=./react-linked-input.js jest",
+    "build:prod": "NODE_ENV=production webpack && NODE_ENV=production TEST_ENTRY=./react-linked-input.min.js jest",
+    "build": "npm run build:dev && npm run build:prod",
+    "prepublish": "npm test && npm run build"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/facebook/react.git"
+  },
+  "files": [
+    "LICENSE",
+    "factory.js",
+    "index.js",
+    "react-linked-input.js",
+    "react-linked-input.min.js"
+  ],
+  "keywords": [
+    "react",
+    "linkedinput",
+    "input",
+    "linked",
+    "reactlink"
+  ],
+  "license": "MIT",
+  "devDependencies": {
+    "babel-preset-es2015": "^6.24.0",
+    "jest": "^19.0.2",
+    "react": "^15.4.2",
+    "react-dom": "^15.4.2",
+    "webpack": "^2.6.1"
+  },
+  "dependencies": {
+    "fbjs": "^0.8.9"
+  }
+}