0.4.0

Each package version is now updated with each release.

Fix #783

.babelrc

@@ -0,0 +1,5 @@
+{
+  "presets": [
+    "./scripts/babel/preset"
+  ]
+}

.eslintignore

@@ -0,0 +1,4 @@
+coverage
+dist
+node_modules
+packages/**/vendor/*

.eslintrc

@@ -56,6 +56,7 @@
     "no-dupe-class-members": 2,
     "no-dupe-keys": 2,
     "no-duplicate-case": 2,
+    "no-duplicate-imports": 2,
     "no-empty-character-class": 2,
     "no-empty-pattern": 2,
     "no-eval": 2,

.flowconfig

@@ -1,14 +1,16 @@
+[version]
+^0.63.0
+
 [ignore]
-.*/__tests__/.*
-.*/benchmarks/.*
-.*/docs/.*
-.*/node_modules/animated/*
+<PROJECT_ROOT>/.*/__tests__/.*
+<PROJECT_ROOT>/packages/.*/dist/.*
+<PROJECT_ROOT>/website/.*
 .*/node_modules/babel-plugin-transform-react-remove-prop-types/*
 
 [include]
 
 [libs]
-types
+<PROJECT_ROOT>/types
 
 [options]
-unsafe.enable_getters_and_setters=true
+

.github/CONTRIBUTING.md

@@ -17,7 +17,7 @@ Fork, then clone the repo:
 git clone https://github.com/your-username/react-native-web.git
 ```
 
-Install dependencies (requires [yarn](https://yarnpkg.com/en/docs/install):
+Install dependencies (requires [yarn](https://yarnpkg.com/en/docs/install)):
 
 ```
 yarn
@@ -25,6 +25,12 @@ yarn
 
 ## Automated tests
 
+To run the linter:
+
+```
+yarn lint
+```
+
 To run flow:
 
 ```
@@ -40,62 +46,57 @@ yarn jest
 …in watch mode:
 
 ```
-yarn jest:watch
+yarn jest --watch
 ```
 
-To run all automated tests:
+To run all these automated tests:
 
 ```
 yarn test
 ```
 
-## Visual tests
-
-To run the interactive storybook:
-
-```
-yarn docs:start
-```
-
-To generate a static build of the storybook:
-
-```
-yarn docs:build
-```
-
-To run the performance benchmarks in a browser (opening `./benchmarks/index.html`):
-
-```
-yarn benchmark
-```
-
 ## Compile and build
 
-To compile the source code to `dist`:
+To compile the `react-native-web` source code:
 
 ```
 yarn compile
 ```
 
-To create a UMD bundle of the library:
+…in watch mode:
 
 ```
-yarn build
+yarn compile --watch
 ```
 
-### Pre-commit
+## Website and visual tests
 
-To format and lint code before commit:
+To run the interactive storybook:
 
 ```
-yarn precommit
+yarn website
 ```
 
-To format and lint the entire project:
+When you're also making changes to the 'react-native-web' source files, run this command in another process:
 
 ```
-yarn fmt
-yarn lint
+yarn compile --watch
+```
+
+## Benchmarks
+
+To run the benchmarks locally:
+
+```
+yarn benchmarks
+open ./packages/benchmarks/dist/index.html
+```
+
+To develop against these benchmarks:
+
+```
+yarn compile --watch
+yarn benchmarks --watch
 ```
 
 ### New Features
@@ -106,13 +107,12 @@ that we won't want to accept.
 
 ## Pull requests
 
-**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 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 tests pass (`yarn test`).
-5. Lint and format your code (`yarn fmt && yarn lint`).
 
 You can now submit a pull request, referencing any issues it addresses.
 
@@ -123,3 +123,18 @@ After you have submitted your pull request, we'll try to get back to you as
 soon as possible. We may suggest some changes or improvements.
 
 Thank you for contributing!
+
+## Releases
+
+To commit, publish, and push a final version:
+
+```
+yarn release <version>
+```
+
+Release candidates or versions that you'd like to publish to npm, but do not
+want to produce a commit and push it to GitHub:
+
+```
+yarn release <version> --skip-git
+```

.gitignore

@@ -1,2 +1,3 @@
+coverage
 node_modules
 dist

.travis.yml

@@ -1,9 +1,17 @@
 language: node_js
+
 node_js:
-  - "6"
-before_script:
-  - export DISPLAY=:99.0
-  - sh -e /etc/init.d/xvfb start
+  - "8"
+
+before_install:
+  # Install Yarn
+  - curl -o- -L https://yarnpkg.com/install.sh | bash
+  - export PATH=$HOME/.yarn/bin:$PATH
+
+cache:
+  yarn: true
+  directories:
+    - node_modules
+
 script:
-  - npm run lint
-  - npm test
+  - yarn test

README.md

@@ -1,127 +1,139 @@
 # React Native for Web
 
-[![Build Status][travis-image]][travis-url]
-[![npm version][npm-image]][npm-url]
+[![npm version][package-badge]][package-url] [![Build Status][ci-badge]][ci-url] [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://reactjs.org/docs/how-to-contribute.html#your-first-pull-request)
 
 "React Native for Web" brings the platform-agnostic Components and APIs of
 [React Native][react-native-url] to the Web.
 
-Browse the [interactive
-documentation](https://necolas.github.io/react-native-web/storybook/) or [try
-it out](https://glitch.com/edit/#!/react-native-web-playground) on Glitch.
+* **High-quality user interfaces**: React Native for Web makes it easy to
+create [fast](https://github.com/necolas/react-native-web/blob/master/packages/benchmarks/README.md),
+adaptive web UIs in JavaScript.  It provides native-like interactions, support
+for multiple input modes (touch, mouse, keyboard), optimized vendor-prefixed
+styles, built-in support for RTL layout, built-in accessibility, and integrates
+with React Dev Tools.
 
-## Features
+* **Write once, render anywhere**: React Native for Web interoperates with
+existing React DOM components and is compatible with the majority of the
+React Native API. You can develop new components for native and web without
+rewriting existing code. React Native for Web can also render to HTML and
+critical CSS on the server using Node.js.
 
-* Interoperability with ReactDOM components.
-* Native-like touch handling.
-* Built-in integration with web accessibility APIs.
-* Built-in support for LTR and RTL layouts.
-* Built-in expressive and reliable subset of CSS.
-* Optimized, vendor-prefixed CSS with [good runtime performance](benchmarks/README.md).
-* Server-side rendering of HTML and critical CSS.
-* Browser support: Chrome, Firefox, Safari >= 7, IE 10, Edge.
+Who is using React Native for Web? [Twitter](https://mobile.twitter.com),
+[Major League Soccer](https://matchcenter.mlssoccer.com), [The
+Times](https://github.com/newsuk/times-components), [React Native's
+documentation](http://facebook.github.io/react-native/).
+
+Browser support: Chrome, Firefox, Safari >= 7, IE 10, Edge.
 
 ## Quick start
 
-Install in your existing app using `yarn` or `npm`:
+The easiest way to get started with React Native for Web is to use this
+[ready-to-go project on Glitch](https://glitch.com/edit/#!/react-native-web-playground).
+You don’t need to install anything to try it out.
 
-```
-yarn add react react-dom react-native-web
-```
-
-Add the `react-native-web/babel` plugin to your Babel configuration. This will
-alias `react-native` to `react-native-web` and exclude any modules not required
-by the app.
-
-```json
-{
-  "plugins": [
-    "react-native-web/babel"
-  ],
-  "presets": [
-    "react-native"
-  ]
-}
-```
-
-(For React/ReactDOM 15.4 – 15.6 support, install `react-native-web@<0.1.0`)
-
-See the [Getting Started](docs/guides/getting-started.md) guide for more details.
+If you are unfamiliar with setting up a React web project, please follow the
+recommendations in the [React documentation](https://reactjs.org/).
 
 ## Documentation
 
-The [interactive
-documentation](https://necolas.github.io/react-native-web/storybook/) shows all
-the supported APIs and Components.
+You can find the React Native for Web API documentation [on the
+website][website-url].
 
-Guides:
+Please refer to the [React Native documentation][react-native-url] for more
+design details, and for information about the [Gesture Responder
+system](https://facebook.github.io/react-native/docs/gesture-responder-system.html)
+and [animations](https://facebook.github.io/react-native/docs/animations.html).
 
-* [Getting started](docs/guides/getting-started.md)
-* [Style](docs/guides/style.md)
-* [Accessibility](docs/guides/accessibility.md)
-* [Direct manipulation](docs/guides/direct-manipulation.md)
-* [Internationalization](docs/guides/internationalization.md)
-* [Advanced use](docs/guides/advanced.md)
-* [Known issues](docs/guides/known-issues.md)
+### Installation
 
-## Example code
+Install using `yarn` or `npm`:
 
-```js
-import React from 'react'
-import { AppRegistry, Image, StyleSheet, Text, View } from 'react-native'
-
-// Components
-const Card = ({ children }) => <View style={styles.card}>{children}</View>
-const Title = ({ children }) => <Text style={styles.title}>{children}</Text>
-const Photo = ({ uri }) => <Image source={{ uri }} style={styles.image} />
-const App = () => (
-  <Card>
-    <Title>App Card</Title>
-    <Photo uri="/some-photo.jpg" />
-  </Card>
-)
-
-// Styles
-const styles = StyleSheet.create({
-  card: {
-    flexGrow: 1,
-    justifyContent: 'center'
-  },
-  title: {
-    fontSize: '1.25rem',
-    fontWeight: 'bold'
-  },
-  image: {
-    height: 40,
-    marginVertical: 10,
-    width: 40
-  }
-})
-
-// App registration and rendering
-AppRegistry.registerComponent('MyApp', () => App)
-AppRegistry.runApplication('MyApp', { rootTag: document.getElementById('react-root') })
+```
+yarn add react react-dom react-native-web
+yarn add --dev babel-plugin-react-native-web
 ```
 
-## Starter kits
+### Guides
 
-* [Glitch](https://glitch.com/edit/#!/react-native-web-playground)
-* [create-react-app](https://github.com/facebookincubator/create-react-app)
-* [re-start](https://github.com/react-everywhere/re-start)
+* [Getting started](https://github.com/necolas/react-native-web/blob/master/website/guides/getting-started.md)
+* [Style](https://github.com/necolas/react-native-web/blob/master/website/guides/style.md)
+* [Accessibility](https://github.com/necolas/react-native-web/blob/master/website/guides/accessibility.md)
+* [Internationalization](https://github.com/necolas/react-native-web/blob/master/website/guides/internationalization.md)
+* [Direct manipulation](https://github.com/necolas/react-native-web/blob/master/website/guides/direct-manipulation.md)
+* [Advanced use](https://github.com/necolas/react-native-web/blob/master/website/guides/advanced.md)
 
-## Related projects
+## Examples
 
-* [react-primitives](https://github.com/lelandrichardson/react-primitives/)
-* [react-sketchapp](https://github.com/airbnb/react-sketchapp)
-* [reactxp](https://github.com/microsoft/reactxp)
-* [react-native-web-player](https://github.com/dabbott/react-native-web-player)
+There are several examples [on the website][website-url] and in the [website's
+source code](https://github.com/necolas/react-native-web/blob/master/website).
+Here is an example to get you started:
+
+```js
+import React from 'react';
+import { AppRegistry, StyleSheet, Text, View } from 'react-native';
+
+class App extends React.Component {
+  render() {
+    return (
+      <View style={styles.box}>
+        <Text style={styles.text}>Hello, world!</Text>
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  box: { padding: 10 },
+  text: { fontWeight: 'bold' }
+});
+
+AppRegistry.registerComponent('App', () => App);
+AppRegistry.runApplication('App', { rootTag: document.getElementById('react-root') });
+```
+
+This example will render the `App` into a container on the page.
+
+You'll notice that there is no reference to `react-dom`; the `App` component is
+defined using the platform-agnostic APIs and Components introduced by React
+Native. This allows the app to be rendered to web and native platforms.
+
+## Contributing
+
+The main purpose of this repository is to help evolve React web and native
+development towards the platform-agnostic design of React Native, and in the
+process make it faster and easier to build high-quality experiences for the web
+with React. Development happens in the open on GitHub, and we are grateful for
+contributing bugfixes and improvements. Read below to learn how you can take
+part in improving React Native for Web.
+
+### Code of conduct
+
+Facebook has adopted a [Code of Conduct][code-of-conduct] that this project
+expects all participants to adhere to. Please read the full text so that you
+can understand what actions will and will not be tolerated.
+
+### Contributing guide
+
+Read the [contributing guide][contributing-url] to learn about the
+development process, how to propose bugfixes and improvements, and how to build
+and test your changes to React Native for Web.
+
+### Good first issues
+
+To help you get you familiar with the contribution process, there is a list of
+[good first issues][good-first-issue-url] that contain bugs which have a
+relatively limited scope. This is a great place to get started.
 
 ## License
 
-React Native for Web is [BSD licensed](LICENSE).
+React Native for Web is [BSD licensed](./LICENSE).
 
-[npm-image]: https://badge.fury.io/js/react-native-web.svg
-[npm-url]: https://npmjs.org/package/react-native-web
+[package-badge]: https://img.shields.io/npm/v/react-native-web.svg?style=flat
+[package-url]: https://yarnpkg.com/en/package/react-native-web
+[ci-badge]: https://travis-ci.org/necolas/react-native-web.svg?branch=master
+[ci-url]: https://travis-ci.org/necolas/react-native-web
+[website-url]: https://necolas.github.io/react-native-web/storybook/
 [react-native-url]: https://facebook.github.io/react-native/
-[travis-image]: https://travis-ci.org/necolas/react-native-web.svg?branch=master
-[travis-url]: https://travis-ci.org/necolas/react-native-web
+[contributing-url]: https://github.com/necolas/react-native-web/blob/master/.github/CONTRIBUTING.md
+[good-first-issue-url]: https://github.com/necolas/react-native-web/labels/good%20first%20issue
+[code-of-conduct]: https://code.facebook.com/codeofconduct

babel/__tests__/__snapshots__/index-test.js.snap

@@ -1,105 +0,0 @@
-// Jest Snapshot v1, https://goo.gl/fbAQLP
-
-exports[`1. Rewrite react-native paths for react-native-web 1`] = `
-"
-import { View } from 'react-native';
-
-      ↓ ↓ ↓ ↓ ↓ ↓
-
-import View from 'react-native-web/dist/components/View';
-"
-`;
-
-exports[`2. Rewrite react-native paths for react-native-web 1`] = `
-"
-import { Switch, Text, View as MyView, ViewPropTypes } from 'react-native';
-
-      ↓ ↓ ↓ ↓ ↓ ↓
-
-import Switch from 'react-native-web/dist/components/Switch';
-import Text from 'react-native-web/dist/components/Text';
-import MyView from 'react-native-web/dist/components/View';
-import ViewPropTypes from 'react-native-web/dist/components/View/ViewPropTypes';
-"
-`;
-
-exports[`3. Rewrite react-native paths for react-native-web 1`] = `
-"
-import { createElement, Switch, StyleSheet } from 'react-native';
-
-      ↓ ↓ ↓ ↓ ↓ ↓
-
-import createElement from 'react-native-web/dist/modules/createElement';
-import Switch from 'react-native-web/dist/components/Switch';
-import StyleSheet from 'react-native-web/dist/apis/StyleSheet';
-"
-`;
-
-exports[`4. Rewrite react-native paths for react-native-web 1`] = `
-"
-import { InvalidThing, TouchableOpacity } from 'react-native';
-
-      ↓ ↓ ↓ ↓ ↓ ↓
-
-import { InvalidThing } from 'react-native-web';
-import TouchableOpacity from 'react-native-web/dist/components/Touchable/TouchableOpacity';
-"
-`;
-
-exports[`5. Rewrite react-native paths for react-native-web 1`] = `
-"
-import * as RNW from 'react-native';
-
-      ↓ ↓ ↓ ↓ ↓ ↓
-
-import * as RNW from 'react-native-web';
-"
-`;
-
-exports[`6. Rewrite react-native paths for react-native-web 1`] = `
-"
-const { View } = require('react-native');
-
-      ↓ ↓ ↓ ↓ ↓ ↓
-
-const View = require('react-native-web/dist/components/View');
-"
-`;
-
-exports[`7. Rewrite react-native paths for react-native-web 1`] = `
-"
-let { Switch, Text, View: MyView } = require('react-native');
-
-      ↓ ↓ ↓ ↓ ↓ ↓
-
-let Switch = require('react-native-web/dist/components/Switch');
-
-let Text = require('react-native-web/dist/components/Text');
-
-let MyView = require('react-native-web/dist/components/View');
-"
-`;
-
-exports[`8. Rewrite react-native paths for react-native-web 1`] = `
-"
-var { createElement, Switch, StyleSheet } = require('react-native');
-
-      ↓ ↓ ↓ ↓ ↓ ↓
-
-var createElement = require('react-native-web/dist/modules/createElement');
-
-var Switch = require('react-native-web/dist/components/Switch');
-
-var StyleSheet = require('react-native-web/dist/apis/StyleSheet');
-"
-`;
-
-exports[`9. Rewrite react-native paths for react-native-web 1`] = `
-"
-const { InvalidThing, TouchableOpacity } = require('react-native');
-
-      ↓ ↓ ↓ ↓ ↓ ↓
-
-const TouchableOpacity = require('react-native-web/dist/components/Touchable/TouchableOpacity');
-"
-`;

babel/__tests__/index-test.js

@@ -1,39 +0,0 @@
-const plugin = require('..');
-const pluginTester = require('babel-plugin-tester');
-
-pluginTester({
-  plugin,
-  snapshot: true,
-  tests: [
-    // import react-native
-    "import { View } from 'react-native';",
-    "import { Switch, Text, View as MyView, ViewPropTypes } from 'react-native';",
-    "import { createElement, Switch, StyleSheet } from 'react-native';",
-    "import { InvalidThing, TouchableOpacity } from 'react-native';",
-    "import * as RNW from 'react-native';",
-
-    // import react-native-web
-    // "import { View } from 'react-native-web';",
-    // "import { Switch, Text, View as MyView } from 'react-native-web';",
-    // "import { createElement, Switch, StyleSheet } from 'react-native-web';",
-    // "import { InvalidThing, TouchableOpacity } from 'react-native-web';",
-    // "import * as RNW from 'react-native-web';",
-
-    // require react-native
-    "const { View } = require('react-native');",
-    "let { Switch, Text, View: MyView } = require('react-native');",
-    "var { createElement, Switch, StyleSheet } = require('react-native');",
-    "const { InvalidThing, TouchableOpacity } = require('react-native');",
-
-    // require react-native-web
-    // "const { View } = require('react-native-web');",
-    // "let { Switch, Text, View: MyView } = require('react-native-web');",
-    // "var { createElement, Switch, StyleSheet } = require('react-native-web');",
-    // "const { InvalidThing, TouchableOpacity } = require('react-native-web');",
-    {
-      code: "const RNW = require('react-native');",
-      output: "const RNW = require('react-native');",
-      snapshot: false
-    }
-  ]
-});

babel/index.js

@@ -1,152 +0,0 @@
-const getDistLocation = importName => {
-  const root = 'react-native-web/dist';
-
-  switch (importName) {
-    // apis
-    case 'Animated':
-    case 'AppRegistry':
-    case 'AppState':
-    case 'AsyncStorage':
-    case 'BackAndroid':
-    case 'Clipboard':
-    case 'Dimensions':
-    case 'Easing':
-    case 'I18nManager':
-    case 'InteractionManager':
-    case 'Keyboard':
-    case 'Linking':
-    case 'NetInfo':
-    case 'PanResponder':
-    case 'PixelRatio':
-    case 'Platform':
-    case 'StyleSheet':
-    case 'UIManager':
-    case 'Vibration': {
-      return `${root}/apis/${importName}`;
-    }
-
-    // components
-    case 'ActivityIndicator':
-    case 'Button':
-    case 'FlatList':
-    case 'Image':
-    case 'KeyboardAvoidingView':
-    case 'ListView':
-    case 'Modal':
-    case 'Picker':
-    case 'ProgressBar':
-    case 'RefreshControl':
-    case 'ScrollView':
-    case 'SectionList':
-    case 'Slider':
-    case 'StatusBar':
-    case 'Switch':
-    case 'Text':
-    case 'TextInput':
-    case 'View':
-    case 'VirtualizedList': {
-      return `${root}/components/${importName}`;
-    }
-
-    case 'Touchable':
-    case 'TouchableHighlight':
-    case 'TouchableNativeFeedback':
-    case 'TouchableOpacity':
-    case 'TouchableWithoutFeedback': {
-      return `${root}/components/Touchable/${importName}`;
-    }
-
-    // modules
-    case 'createElement':
-    case 'findNodeHandle':
-    case 'NativeModules':
-    case 'processColor':
-    case 'render':
-    case 'unmountComponentAtNode': {
-      return `${root}/modules/${importName}`;
-    }
-
-    // propTypes
-    case 'ColorPropType':
-    case 'EdgeInsetsPropType':
-    case 'PointPropType': {
-      return `${root}/propTypes/${importName}`;
-    }
-    case 'TextPropTypes': {
-      return `${root}/components/Text/${importName}`;
-    }
-    case 'ViewPropTypes': {
-      return `${root}/components/View/${importName}`;
-    }
-
-    default:
-      return;
-  }
-};
-
-const isReactNativeRequire = (t, node) => {
-  const { declarations } = node;
-  if (declarations.length > 1) {
-    return false;
-  }
-  const { id, init } = declarations[0];
-  return (
-    t.isObjectPattern(id) &&
-    t.isCallExpression(init) &&
-    t.isIdentifier(init.callee) &&
-    init.callee.name === 'require' &&
-    init.arguments.length === 1 &&
-    init.arguments[0].value === 'react-native'
-  );
-};
-
-module.exports = function({ types: t }) {
-  return {
-    name: 'Rewrite react-native paths for react-native-web',
-    visitor: {
-      ImportDeclaration(path) {
-        const { source, specifiers } = path.node;
-        if (source.value === 'react-native' && specifiers.length) {
-          const imports = specifiers
-            .map(specifier => {
-              if (t.isImportSpecifier(specifier)) {
-                const importName = specifier.imported.name;
-                const distLocation = getDistLocation(importName);
-
-                if (distLocation) {
-                  return t.importDeclaration(
-                    [t.importDefaultSpecifier(t.identifier(specifier.local.name))],
-                    t.stringLiteral(distLocation)
-                  );
-                }
-              }
-              return t.importDeclaration([specifier], t.stringLiteral('react-native-web'));
-            })
-            .filter(Boolean);
-
-          path.replaceWithMultiple(imports);
-        }
-      },
-      VariableDeclaration(path) {
-        if (isReactNativeRequire(t, path.node)) {
-          const { id } = path.node.declarations[0];
-          const imports = id.properties
-            .map(identifier => {
-              const distLocation = getDistLocation(identifier.key.name);
-              if (distLocation) {
-                return t.variableDeclaration(path.node.kind, [
-                  t.variableDeclarator(
-                    t.identifier(identifier.value.name),
-                    t.callExpression(t.identifier('require'), [t.stringLiteral(distLocation)])
-                  )
-                ]);
-              }
-            })
-            .filter(Boolean);
-
-          path.replaceWithMultiple(imports);
-        }
-      }
-    }
-  };
-};

benchmarks/README.md

@@ -1,52 +0,0 @@
-# Performance
-
-To run these benchmarks:
-
-```
-npm run build:performance
-open ./performance/index.html
-```
-
-Append `?fastest` to the URL to include the fastest "other libraries", and
-`?all` to include all the "other libraries".
-
-## Notes
-
-The components used in the render benchmarks are simple enough to be
-implemented by multiple UI or style libraries. The implementations are not
-equivalent in functionality. For example, React Native for Web's stylesheet is
-unique in that it also converts React Native styles to DOM styles, has
-deterministic resolution, and supports RTL layout.
-
-`react-native-web/stylesheet` is a comparative baseline that implements a
-simple `View` without much of React Native's functionality.
-
-## Benchmark results
-
-Typical render timings*: mean ± two standard deviations.
-
-| Implementation                        | Deep tree (ms)    | Wide tree (ms)    | Tweets (ms)       |
-| :--- | ---: | ---: | ---: |
-| `css-modules`                         |  `88.83` `±18.63` | `198.79` `±22.98` | |
-| `react-native-web/stylesheet@0.0.121` |  `91.17` `±19.29` | `209.67` `±32.38` | |
-| `react-native-web@0.0.121`            | `124.21` `±16.84` | `264.55` `±38.75` | `16.90` `±7.30ms` |
-
-Other libraries
-
-| Implementation                       | Deep tree (ms)    | Wide tree (ms)    |
-| :--- | ---: | ---: |
-| `aphrodite@1.2.3`                    |  `91.73` `±41.63` | `197.72` `±44.90` |
-| `styletron@2.5.1`                    |  `94.73` `±37.58` | `201.81` `±57.93` |
-| `glamor@2.20.40`                     | `146.60` `±26.73` | `277.46` `±29.17` |
-| `emotion@7.2.2`                      | `150.79` `±38.29` | `282.18` `±41.79` |
-| `react-jss@7.1.0`                    | `201.83` `±34.65` | `428.61` `±47.8` |
-| `reactxp@0.42.1`                     | `262.69` `±24.14` | `595.20` `±66.17` |
-| `styled-components@2.1.2`            | `280.59` `±31.77` | `599.00` `±62.99` |
-| `styled-components/primitives@2.1.2` | `291.74` `±48.96` | `606.57` `±78.18` |
-| `radium@0.19.4`                      | `563.94` `±69.91` | `1139.18` `±152.59` |
-
-These results indicate that style render performance is not a significant
-differentiating factor between `aphrodite`, `css-modules`, `react-native-web`,
-and `styletron`.
-
-*MacBook Pro (13-inch, Early 2015); 3.1 GHz Intel Core i7; 16 GB 1867 MHz DDR3. Google Chrome 58 (2x CPU slowdown).

benchmarks/benchmark.js

@@ -1,97 +0,0 @@
-import * as marky from 'marky';
-
-const fmt = time => `${Math.round(time * 100) / 100}ms`;
-
-const measure = (name, fn) => {
-  marky.mark(name);
-  fn();
-  const performanceMeasure = marky.stop(name);
-  return performanceMeasure.duration;
-};
-
-const mean = values => {
-  const sum = values.reduce((sum, value) => sum + value, 0);
-  return sum / values.length;
-};
-
-const median = values => {
-  if (!Array.isArray(values)) {
-    return 0;
-  }
-  if (values.length === 1) {
-    return values[0];
-  }
-
-  const numbers = [...values].sort((a, b) => a - b);
-  return (numbers[(numbers.length - 1) >> 1] + numbers[numbers.length >> 1]) / 2;
-};
-
-const standardDeviation = values => {
-  const avg = mean(values);
-
-  const squareDiffs = values.map(value => {
-    const diff = value - avg;
-    return diff * diff;
-  });
-
-  const meanSquareDiff = mean(squareDiffs);
-  return Math.sqrt(meanSquareDiff);
-};
-
-const benchmark = ({ name, description, setup, teardown, task, runs }) => {
-  return new Promise(resolve => {
-    const durations = [];
-    let i = 0;
-
-    setup();
-    const first = measure('first', task);
-    teardown();
-
-    const done = () => {
-      const stdDev = standardDeviation(durations);
-      const formattedFirst = fmt(first);
-      const formattedMean = fmt(mean(durations));
-      const formattedMedian = fmt(median(durations));
-      const formattedStdDev = fmt(stdDev);
-
-      console.groupCollapsed(`${name}\n${formattedMean} ±${fmt(2 * stdDev)}`);
-      description && console.log(description);
-      console.log(`First: ${formattedFirst}`);
-      console.log(`Median: ${formattedMedian}`);
-      console.log(`Mean: ${formattedMean}`);
-      console.log(`Standard deviation: ${formattedStdDev}`);
-      console.log(durations);
-      console.groupEnd();
-      resolve();
-    };
-
-    const a = () => {
-      setup();
-      window.requestAnimationFrame(b);
-    };
-
-    const b = () => {
-      const duration = measure('mean', task);
-      durations.push(duration);
-      window.requestAnimationFrame(c);
-    };
-
-    const c = () => {
-      teardown();
-      window.requestAnimationFrame(d);
-    };
-
-    const d = () => {
-      i += 1;
-      if (i < runs) {
-        window.requestAnimationFrame(a);
-      } else {
-        window.requestAnimationFrame(done);
-      }
-    };
-
-    window.requestAnimationFrame(a);
-  });
-};
-
-export default benchmark;

benchmarks/createRenderBenchmark.js

@@ -1,24 +0,0 @@
-import benchmark from './benchmark';
-import ReactDOM from 'react-dom';
-
-const node = document.querySelector('.root');
-
-const createRenderBenchmark = ({ description, getElement, name, runs }) => () => {
-  const setup = () => {};
-  const teardown = () => {
-    ReactDOM.unmountComponentAtNode(node);
-  };
-
-  return benchmark({
-    name,
-    description,
-    runs,
-    setup,
-    teardown,
-    task: () => {
-      ReactDOM.render(getElement(), node);
-    }
-  });
-};
-
-export default createRenderBenchmark;

benchmarks/index.html

@@ -1,11 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-<head>
-  <meta charset="UTF-8">
-  <title>Performance tests</title>
-</head>
-<body>
-  <div class="root"></div>
-  <script src="dist/performance.bundle.js"></script>
-</body>
-</html>

benchmarks/index.js

@@ -1,69 +0,0 @@
-import aphrodite from './src/aphrodite';
-import cssModules from './src/css-modules';
-import emotion from './src/emotion';
-import glamor from './src/glamor';
-import jss from './src/jss';
-import radium from './src/radium';
-import reactNative from './src/react-native';
-import reactNativeStyleSheet from './src/react-native-stylesheet';
-import styledComponents from './src/styled-components';
-import styledComponentsPrimitives from './src/styled-components-primitives';
-import styletron from './src/styletron';
-import xp from './src/reactxp';
-
-import renderDeepTree from './tests/renderDeepTree';
-import renderTweet from './tests/renderTweet';
-import renderWideTree from './tests/renderWideTree';
-
-const testAll = window.location.search === '?all';
-const testFastest = window.location.search === '?fastest';
-
-const coreTests = [
-  () => renderTweet('react-native-web', reactNative),
-
-  () => renderDeepTree('css-modules', cssModules),
-  () => renderWideTree('css-modules', cssModules),
-  () => renderDeepTree('react-native-web/stylesheet', reactNativeStyleSheet),
-  () => renderWideTree('react-native-web/stylesheet', reactNativeStyleSheet),
-  () => renderDeepTree('react-native-web', reactNative),
-  () => renderWideTree('react-native-web', reactNative)
-];
-
-const fastestTests = [
-  () => renderDeepTree('aphrodite', aphrodite),
-  () => renderWideTree('aphrodite', aphrodite),
-  () => renderDeepTree('styletron', styletron),
-  () => renderWideTree('styletron', styletron)
-];
-
-/**
- * Optionally run tests using other libraries
- */
-const restTests = [
-  () => renderDeepTree('emotion', emotion),
-  () => renderWideTree('emotion', emotion),
-  () => renderDeepTree('glamor', glamor),
-  () => renderWideTree('glamor', glamor),
-  () => renderDeepTree('radium', radium),
-  () => renderWideTree('radium', radium),
-  () => renderDeepTree('reactxp', xp),
-  () => renderWideTree('reactxp', xp),
-  () => renderDeepTree('react-jss', jss),
-  () => renderWideTree('react-jss', jss),
-  () => renderDeepTree('styled-components', styledComponents),
-  () => renderWideTree('styled-components', styledComponents),
-  () => renderDeepTree('styled-components/primitives', styledComponentsPrimitives),
-  () => renderWideTree('styled-components/primitives', styledComponentsPrimitives)
-];
-
-const tests = [...coreTests];
-if (testFastest) {
-  tests.push(...fastestTests);
-}
-if (testAll) {
-  tests.push(...fastestTests);
-  tests.push(...restTests);
-}
-
-// run benchmarks
-tests.reduce((promise, test) => promise.then(test()), Promise.resolve());

benchmarks/package.json

@@ -1,22 +0,0 @@
-{
-  "name": "benchmarks",
-  "private": true,
-  "dependencies": {
-    "aphrodite": "^1.2.3",
-    "classnames": "^2.2.5",
-    "emotion": "^7.2.2",
-    "glamor": "^2.20.40",
-    "marky": "^1.2.0",
-    "radium": "^0.19.4",
-    "react-jss": "^7.1.0",
-    "react-primitives": "^0.4.3",
-    "reactxp": "^0.42.1",
-    "styled-components": "^2.1.2",
-    "styletron-client": "^2.5.7",
-    "styletron-utils": "^2.5.4"
-  },
-  "devDependencies": {
-    "css-loader": "^0.28.7",
-    "style-loader": "^0.18.2"
-  }
-}

benchmarks/src/aphrodite.js

@@ -1,7 +0,0 @@
-import Box from './components/Box/aphrodite';
-import View from './components/View/aphrodite';
-
-export default {
-  Box,
-  View
-};

benchmarks/src/components/Box/react-native-stylesheet.js

@@ -1,49 +0,0 @@
-/* eslint-disable react/prop-types */
-import React from 'react';
-import StyleSheet from 'react-native/apis/StyleSheet';
-import View from '../View/react-native-stylesheet';
-
-const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
-  <View
-    {...other}
-    style={[
-      styles[`color${color}`],
-      fixed && styles.fixed,
-      layout === 'row' && styles.row,
-      outer && styles.outer
-    ]}
-  />
-);
-
-const styles = StyleSheet.create({
-  outer: {
-    padding: 4
-  },
-  row: {
-    flexDirection: 'row'
-  },
-  color0: {
-    backgroundColor: '#222'
-  },
-  color1: {
-    backgroundColor: '#666'
-  },
-  color2: {
-    backgroundColor: '#999'
-  },
-  color3: {
-    backgroundColor: 'blue'
-  },
-  color4: {
-    backgroundColor: 'orange'
-  },
-  color5: {
-    backgroundColor: 'red'
-  },
-  fixed: {
-    width: 20,
-    height: 20
-  }
-});
-
-export default Box;

benchmarks/src/components/Box/styled-components-primitives.js

@@ -1,30 +0,0 @@
-import styled from 'styled-components/primitives';
-
-const getColor = color => {
-  switch (color) {
-    case 0:
-      return '#222';
-    case 1:
-      return '#666';
-    case 2:
-      return '#999';
-    case 3:
-      return 'blue';
-    case 4:
-      return 'orange';
-    case 5:
-      return 'red';
-    default:
-      return 'transparent';
-  }
-};
-
-const Box = styled.View`
-  flex-direction: ${props => (props.layout === 'column' ? 'column' : 'row')};
-  padding: ${props => (props.outer ? '4px' : '0')};
-  height: ${props => (props.fixed ? '20px' : 'auto')};
-  width: ${props => (props.fixed ? '20px' : 'auto')};
-  background-color: ${props => getColor(props.color)};
-`;
-
-export default Box;

benchmarks/src/components/Box/styles.css

@@ -1,36 +0,0 @@
-.outer {
-  padding: 4px;
-}
-
-.row {
-  flex-direction: row;
-}
-
-.color0 {
-  background-color: #222;
-}
-
-.color1 {
-  background-color: #666;
-}
-
-.color2 {
-  background-color: #999;
-}
-
-.color3 {
-  background-color: blue;
-}
-
-.color4 {
-  background-color: orange;
-}
-
-.color5 {
-  background-color: red;
-}
-
-.fixed {
-  width: 20px;
-  height: 20px;
-}

benchmarks/src/components/Box/styletron.js

@@ -1,49 +0,0 @@
-/* eslint-disable react/prop-types */
-import { injectStylePrefixed } from 'styletron-utils';
-import React from 'react';
-import View, { styletron } from '../View/styletron';
-
-const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
-  <View
-    {...other}
-    style={[
-      styles[`color${color}`],
-      fixed && styles.fixed,
-      layout === 'row' && styles.row,
-      outer && styles.outer
-    ]}
-  />
-);
-
-const styles = {
-  outer: injectStylePrefixed(styletron, {
-    padding: '4px'
-  }),
-  row: injectStylePrefixed(styletron, {
-    flexDirection: 'row'
-  }),
-  color0: injectStylePrefixed(styletron, {
-    backgroundColor: '#222'
-  }),
-  color1: injectStylePrefixed(styletron, {
-    backgroundColor: '#666'
-  }),
-  color2: injectStylePrefixed(styletron, {
-    backgroundColor: '#999'
-  }),
-  color3: injectStylePrefixed(styletron, {
-    backgroundColor: 'blue'
-  }),
-  color4: injectStylePrefixed(styletron, {
-    backgroundColor: 'orange'
-  }),
-  color5: injectStylePrefixed(styletron, {
-    backgroundColor: 'red'
-  }),
-  fixed: injectStylePrefixed(styletron, {
-    width: '20px',
-    height: '20px'
-  })
-};
-
-export default Box;

benchmarks/src/components/NestedTree/index.js

@@ -1,58 +0,0 @@
-import PropTypes from 'prop-types';
-import React, { Component } from 'react';
-
-class DeepTree extends Component {
-  static propTypes = {
-    breadth: PropTypes.number.isRequired,
-    components: PropTypes.object,
-    depth: PropTypes.number.isRequired,
-    id: PropTypes.number.isRequired,
-    wrap: PropTypes.number.isRequired
-  };
-
-  /* necessary for reactxp to work without errors */
-  static childContextTypes = {
-    focusManager: PropTypes.object
-  };
-
-  getChildContext() {
-    return {
-      focusManager: {
-        addFocusableComponent() {},
-        removeFocusableComponent() {},
-        restrictFocusWithin() {},
-        removeFocusRestriction() {},
-        limitFocusWithin() {},
-        removeFocusLimitation() {}
-      }
-    };
-  }
-
-  render() {
-    const { breadth, components, depth, id, wrap } = this.props;
-    const { Box } = components;
-
-    let result = (
-      <Box color={id % 3} components={components} layout={depth % 2 === 0 ? 'column' : 'row'} outer>
-        {depth === 0 && <Box color={id % 3 + 3} components={components} fixed />}
-        {depth !== 0 &&
-          Array.from({ length: breadth }).map((el, i) => (
-            <DeepTree
-              breadth={breadth}
-              components={components}
-              depth={depth - 1}
-              id={i}
-              key={i}
-              wrap={wrap}
-            />
-          ))}
-      </Box>
-    );
-    for (let i = 0; i < wrap; i++) {
-      result = <Box components={components}>{result}</Box>;
-    }
-    return result;
-  }
-}
-
-export default DeepTree;

benchmarks/src/components/View/react-native-stylesheet.js

@@ -1,35 +0,0 @@
-/* eslint-disable react/prop-types */
-import React from 'react';
-import StyleSheet from 'react-native/apis/StyleSheet';
-import registry from 'react-native/apis/StyleSheet/registry';
-
-const emptyObject = {};
-
-class View extends React.Component {
-  render() {
-    const { style, ...other } = this.props;
-    const styleProps = registry.resolve([styles.root, style]) || emptyObject;
-    return <div {...other} {...styleProps} />;
-  }
-}
-
-const styles = StyleSheet.create({
-  root: {
-    alignItems: 'stretch',
-    borderWidth: 0,
-    borderStyle: 'solid',
-    boxSizing: 'border-box',
-    display: 'flex',
-    flexBasis: 'auto',
-    flexDirection: 'column',
-    flexShrink: 0,
-    margin: 0,
-    padding: 0,
-    position: 'relative',
-    // fix flexbox bugs
-    minHeight: 0,
-    minWidth: 0
-  }
-});
-
-export default View;

benchmarks/src/components/View/styletron.js

@@ -1,33 +0,0 @@
-/* eslint-disable react/prop-types */
-import classnames from 'classnames';
-import Styletron from 'styletron-client';
-import { injectStylePrefixed } from 'styletron-utils';
-import React from 'react';
-
-export const styletron = new Styletron();
-
-class View extends React.Component {
-  render() {
-    const { style, ...other } = this.props;
-    return <div {...other} className={classnames(viewStyle, ...style)} />;
-  }
-}
-
-const viewStyle = injectStylePrefixed(styletron, {
-  alignItems: 'stretch',
-  borderWidth: '0px',
-  borderStyle: 'solid',
-  boxSizing: 'border-box',
-  display: 'flex',
-  flexBasis: 'auto',
-  flexDirection: 'column',
-  flexShrink: '0',
-  margin: '0px',
-  padding: '0px',
-  position: 'relative',
-  // fix flexbox bugs
-  minHeight: '0px',
-  minWidth: '0px'
-});
-
-export default View;

benchmarks/src/css-modules.js

@@ -1,9 +0,0 @@
-import Box from './components/Box/css-modules';
-import View from './components/View/css-modules';
-
-const api = {
-  Box,
-  View
-};
-
-export default api;

benchmarks/src/emotion.js

@@ -1,7 +0,0 @@
-import Box from './components/Box/emotion';
-import View from './components/View/emotion';
-
-export default {
-  Box,
-  View
-};

benchmarks/src/glamor.js

@@ -1,7 +0,0 @@
-import Box from './components/Box/glamor';
-import View from './components/View/glamor';
-
-export default {
-  Box,
-  View
-};

benchmarks/src/jss.js

@@ -1,9 +0,0 @@
-import Box from './components/Box/jss';
-import View from './components/View/jss';
-
-const api = {
-  Box,
-  View
-};
-
-export default api;

benchmarks/src/radium.js

@@ -1,9 +0,0 @@
-import Box from './components/Box/radium';
-import View from './components/View/radium';
-
-const api = {
-  Box,
-  View
-};
-
-export default api;

benchmarks/src/react-native-stylesheet.js

@@ -1,9 +0,0 @@
-import Box from './components/Box/react-native-stylesheet';
-import View from './components/View/react-native-stylesheet';
-
-const api = {
-  Box,
-  View
-};
-
-export default api;

benchmarks/src/react-native.js

@@ -1,9 +0,0 @@
-import Box from './components/Box/react-native';
-import Tweet from './components/Tweet';
-import { View } from 'react-native';
-
-export default {
-  Box,
-  Tweet,
-  View
-};

benchmarks/src/reactxp.js

@@ -1,7 +0,0 @@
-import Box from './components/Box/reactxp';
-import { View } from 'reactxp';
-
-export default {
-  Box,
-  View
-};

benchmarks/src/styled-components-primitives.js

@@ -1,7 +0,0 @@
-import Box from './components/Box/styled-components';
-import styled from 'styled-components/primitives';
-
-export default {
-  Box,
-  View: styled.View
-};

benchmarks/src/styled-components.js

@@ -1,7 +0,0 @@
-import Box from './components/Box/styled-components';
-import View from './components/View/styled-components';
-
-export default {
-  Box,
-  View
-};

benchmarks/src/styletron.js

@@ -1,7 +0,0 @@
-import Box from './components/Box/styletron';
-import View from './components/View/styletron';
-
-export default {
-  Box,
-  View
-};

benchmarks/tests/renderDeepTree.js

@@ -1,14 +0,0 @@
-import createRenderBenchmark from '../createRenderBenchmark';
-import NestedTree from '../src/components/NestedTree';
-import React from 'react';
-
-const renderDeepTree = (label, components) =>
-  createRenderBenchmark({
-    name: `Deep tree [${label}]`,
-    runs: 20,
-    getElement() {
-      return <NestedTree breadth={3} components={components} depth={6} id={0} wrap={1} />;
-    }
-  });
-
-export default renderDeepTree;

benchmarks/tests/renderTweet.js

@@ -1,113 +0,0 @@
-import createRenderBenchmark from '../createRenderBenchmark';
-import Tweet from '../src/components/Tweet';
-import React from 'react';
-
-const tweet1 = {
-  favorite_count: 30,
-  favorited: true,
-  id: '834889712556875776',
-  lang: 'en',
-  retweet_count: 6,
-  retweeted: false,
-  textParts: [
-    {
-      prefix: '',
-      text: 'Living burrito to burrito '
-    },
-    {
-      emoji: 'https://abs-0.twimg.com/emoji/v2/svg/1f32f.svg',
-      isEmoji: true,
-      prefix: '',
-      text: '🌯'
-    },
-    {
-      emoji: 'https://abs-0.twimg.com/emoji/v2/svg/1f32f.svg',
-      isEmoji: true,
-      prefix: '',
-      text: '🌯'
-    },
-    {
-      emoji: 'https://abs-0.twimg.com/emoji/v2/svg/1f32f.svg',
-      isEmoji: true,
-      prefix: '',
-      text: '🌯'
-    }
-  ],
-  timestamp: 'Feb 23',
-  user: {
-    fullName: 'Nicolas',
-    screenName: 'necolas',
-    profileImageUrl: 'https://pbs.twimg.com/profile_images/804365942360719360/dQnPejph_normal.jpg'
-  }
-};
-
-const tweet2 = {
-  favorite_count: 84,
-  favorited: false,
-  id: '730896800060579840',
-  lang: 'en',
-  media: {
-    source: {
-      uri: 'https://pbs.twimg.com/media/CiSqvsJVEAAtLZ1.jpg',
-      width: 600,
-      height: 338
-    }
-  },
-  retweet_count: 4,
-  retweeted: true,
-  textParts: [
-    {
-      prefix: '',
-      text: 'Presenting '
-    },
-    {
-      displayUrl: 'mobile.twitter.com',
-      expandedUrl: 'https://mobile.twitter.com',
-      isEntity: true,
-      isUrl: true,
-      linkRelation: 'nofollow',
-      prefix: '',
-      text: '',
-      textDirection: 'ltr',
-      url: 'https://t.co/4hRCAxiUUG'
-    },
-    {
-      prefix: '',
-      text: ' with '
-    },
-    {
-      isEntity: true,
-      isMention: true,
-      prefix: '@',
-      text: 'davidbellona',
-      textDirection: 'ltr',
-      url: '/davidbellona'
-    },
-    {
-      prefix: '',
-      text: " at Twitter's all hands meeting "
-    }
-  ],
-  timestamp: 'May 12',
-  user: {
-    fullName: 'Nicolas',
-    screenName: 'necolas',
-    profileImageUrl: 'https://pbs.twimg.com/profile_images/804365942360719360/dQnPejph_normal.jpg'
-  }
-};
-
-const renderTweet = label =>
-  createRenderBenchmark({
-    name: `Tweet [${label}]`,
-    runs: 10,
-    getElement() {
-      return (
-        <div style={{ width: 500 }}>
-          <Tweet tweet={tweet1} />
-          <Tweet tweet={tweet2} />
-        </div>
-      );
-    }
-  });
-
-export default renderTweet;

benchmarks/tests/renderWideTree.js

@@ -1,14 +0,0 @@
-import createRenderBenchmark from '../createRenderBenchmark';
-import NestedTree from '../src/components/NestedTree';
-import React from 'react';
-
-const renderWideTree = (label, components) =>
-  createRenderBenchmark({
-    name: `Wide tree [${label}]`,
-    runs: 20,
-    getElement() {
-      return <NestedTree breadth={10} components={components} depth={3} id={0} wrap={4} />;
-    }
-  });
-
-export default renderWideTree;

docs/guides/getting-started.md

@@ -1,211 +0,0 @@
-# Getting started
-
-This guide will help you to correctly configure build and test tools to work
-with React Native for Web. (Alternatively, you can quickly setup a local
-project using the starter kits listed in the README.)
-
-It is recommended that your application provide a `Promise` and `Array.from`
-polyfill.
-
-## Web packager
-
-[Webpack](https://webpack.js.org) is a popular build tool for web apps. Below is an
-example of how to configure a build that uses [Babel](https://babeljs.io/) to
-compile your JavaScript for the web.
-
-Create a `web/webpack.config.js` file:
-
-```js
-// web/webpack.config.js
-
-// This is needed for webpack to compile JavaScript.
-// Many OSS React Native packages are not compiled to ES5 before being
-// published. If you depend on uncompiled packages they may cause webpack build
-// errors. To fix this webpack can be configured to compile to the necessary
-// `node_module`.
-const babelLoaderConfiguration = {
-  test: /\.js$/,
-  // Add every directory that needs to be compiled by Babel during the build
-  include: [
-    path.resolve(__dirname, 'src'),
-    path.resolve(__dirname, 'node_modules/react-native-uncompiled')
-  ],
-  use: {
-    loader: 'babel-loader',
-    options: {
-      cacheDirectory: true,
-      // This aliases 'react-native' to 'react-native-web' and includes only
-      // the modules needed by the app
-      plugins: ['react-native-web/babel']
-      // The 'react-native' preset is recommended (or use your own .babelrc)
-      presets: ['react-native']
-    }
-  }
-};
-
-// This is needed for webpack to import static images in JavaScript files
-const imageLoaderConfiguration = {
-  test: /\.(gif|jpe?g|png|svg)$/,
-  use: {
-    loader: 'url-loader',
-    options: {
-      name: '[name].[ext]'
-    }
-  }
-};
-
-module.exports = {
-  // ...the rest of your config
-
-  module: {
-    rules: [
-      babelLoaderConfiguration,
-      imageLoaderConfiguration
-    ]
-  },
-
-  plugins: [
-    // `process.env.NODE_ENV === 'production'` must be `true` for production
-    // builds to eliminate development checks and reduce build size. You may
-    // wish to include additional optimizations.
-    new webpack.DefinePlugin({
-      'process.env.NODE_ENV': JSON.stringify('production')
-    })
-  ],
-
-  resolve: {
-    // If you're working on a multi-platform React Native app, web-specific
-    // module implementations should be written in files using the extension
-    // `.web.js`.
-    extensions: [ '.web.js', '.js' ]
-  }
-}
-```
-
-To run in development:
-
-```
-./node_modules/.bin/webpack-dev-server -d --config web/webpack.config.js --inline --hot --colors
-```
-
-To build for production:
-
-```
-./node_modules/.bin/webpack -p --config web/webpack.config.js
-```
-
-Please refer to the Webpack documentation for more information on configuration.
-
-## Web entry
-
-Create a `index.web.js` file (or simply `index.js` for web-only apps).
-
-### Client-side rendering
-
-Rendering using `AppRegistry`:
-
-```js
-// index.web.js
-
-import App from './src/App';
-import React from 'react';
-import ReactNative, { AppRegistry } from 'react-native';
-
-// register the app
-AppRegistry.registerComponent('App', () => App);
-
-AppRegistry.runApplication('App', {
-  initialProps: {},
-  rootTag: document.getElementById('react-app')
-});
-```
-
-Rendering within existing web apps is also possible using `ReactNative`:
-
-```js
-import AppHeader from './src/AppHeader';
-import React from 'react';
-import ReactNative from 'react-native';
-
-// use .hydrate if hydrating a SSR app
-ReactNative.render(<AppHeader />, document.getElementById('react-app-header'))
-```
-
-And finally, `react-native-web` components will also be rendering within a tree
-produced by calling `ReactDOM.render` (i.e., an existing web app), but
-otherwise it is not recommended.
-
-### Server-side rendering
-
-Server-side rendering is supported using the `AppRegistry`:
-
-```js
-import App from './src/App';
-import ReactDOMServer from 'react-dom/server'
-import ReactNative, { AppRegistry } from 'react-native'
-
-// register the app
-AppRegistry.registerComponent('App', () => App)
-
-// prerender the app
-const { element, stylesheets } = AppRegistry.getApplication('App', { initialProps });
-const initialHTML = ReactDOMServer.renderToString(element);
-const initialStyles = stylesheets.map((sheet) => ReactDOMServer.renderToStaticMarkup(sheet)).join('\n');
-
-// construct HTML document
-const document = `
-<!DOCTYPE html>
-<html>
-<head>
-${initialStyles}
-</head>
-<body>
-${initialHTML}
-`
-```
-
-## Web-specific code
-
-Minor platform differences can use the `Platform` module.
-
-```js
-import { Platform } from 'react-native';
-
-const styles = StyleSheet.create({
-  height: (Platform.OS === 'web') ? 200 : 100,
-});
-```
-
-More significant platform differences should use platform-specific files (see
-the webpack configuration above for resolving `*.web.js` files):
-
-For example, with the following files in your project:
-
-```
-MyComponent.android.js
-MyComponent.ios.js
-MyComponent.web.js
-```
-
-And the following import:
-
-```js
-import MyComponent from './MyComponent';
-```
-
-React Native will automatically import the correct variant for each specific
-target platform.
-
-## Testing with Jest
-
-[Jest](https://facebook.github.io/jest/) also needs to map `react-native` to `react-native-web`.
-
-```
-"jest": {
-  "moduleNameMapper": {
-    "react-native": "<rootDir>/node_modules/react-native-web"
-  }
-}
-```
-
-Please refer to the Jest documentation for more information.

docs/guides/known-issues.md

@@ -1,31 +0,0 @@
-# Known issues
-
-## Safari flexbox performance
-
-Safari version prior to 10.1 can suffer from extremely [poor flexbox
-performance](https://bugs.webkit.org/show_bug.cgi?id=150445). The recommended
-way to work around this issue (as used on mobile.twitter.com) is to set
-`display:block` on Views in your element hierarchy that you know don't need
-flexbox layout.
-
-## Missing modules and components
-
-Not all of the views present on iOS/Android are currently available on Web. We
-are very much interested in the community's feedback on the next set of modules
-and views.
-
-Not all the modules or views for iOS/Android can be implemented on Web. In some
-cases it will be necessary to use a Web counterpart or to guard the use of a
-module with `Platform.OS` (e.g. `NativeModules`)
-
-## Missing component props
-
-There are properties that do not work across all platforms. All web-specific
-props are annotated with `(web)` in the documentation.
-
-## Platform parity
-
-There are some known issues in React Native where APIs could be made more
-consistent between platforms. For example, React Native for Web includes
-`ActivityIndicator` and a horizontal `ProgressBar` for Web use, in anticipation
-of the convergence between the iOS and Android components in React Native.

docs/package.json

@@ -1,11 +0,0 @@
-{
-  "scripts": {
-    "build": "yarn && build-storybook -o ./dist -c ./storybook/.storybook",
-    "start": "start-storybook -p 9001 -c ./storybook/.storybook",
-    "release": "yarn build && git checkout gh-pages && rm -rf ../storybook && mv dist ../storybook && git add -A && git commit -m \"Storybook deploy\" && git push origin gh-pages && git checkout -"
-  },
-  "dependencies": {
-    "@storybook/addon-options": "^3.1.6",
-    "@storybook/react": "^3.1.9"
-  }
-}

jest-setup-framework.js

@@ -1,4 +0,0 @@
-import Enzyme from 'enzyme';
-import Adapter from 'enzyme-adapter-react-16';
-
-Enzyme.configure({ adapter: new Adapter() });

package.json

@@ -1,126 +1,73 @@
 {
-  "name": "react-native-web",
-  "version": "0.1.4",
-  "description": "React Native for Web",
-  "main": "dist/index.js",
-  "module": "dist/module.js",
-  "files": [
-    "babel",
-    "dist",
-    "src",
-    "!**/__tests__"
-  ],
+  "private": true,
+  "version": "0.4.0",
+  "name": "react-native-web-monorepo",
   "scripts": {
-    "benchmark": "cd benchmarks && yarn && webpack && open index.html",
-    "build": "yarn compile && webpack --config webpack.config.js --sort-assets-by --progress",
-    "clean-dist": "del ./dist && mkdir dist",
-    "compile": "babel src -d dist --ignore *-test.js",
-    "docs:build": "cd docs && yarn build",
-    "docs:start": "cd docs && yarn && yarn start",
-    "docs:release": "cd docs && yarn release",
+    "clean": "del ./packages/*/dist",
+    "compile": "yarn clean && cd packages/react-native-web && babel src --out-dir dist --ignore \"**/__tests__\"",
+    "benchmarks": "cd packages/benchmarks && yarn build",
+    "benchmarks:release": "cd packages/benchmarks && yarn release",
+    "website": "cd website && yarn start",
+    "website:release": "cd website && yarn release",
     "flow": "flow",
-    "fmt": "find babel benchmarks docs src -name '*.js' | grep -v -E '(node_modules|dist)' | xargs yarn fmt:cmd",
-    "fmt:cmd": "prettier --print-width=100 --single-quote --write",
-    "jest": "jest",
-    "jest:watch": "yarn test -- --watch",
-    "lint": "yarn lint:cmd -- babel benchmarks docs src",
-    "lint:cmd": "eslint --ignore-path .gitignore --fix",
+    "fmt": "find packages scripts types website -name '*.js' | grep -v -E '(node_modules|dist|vendor)' | xargs yarn fmt:cmd",
+    "fmt:cmd": "prettier --write",
+    "jest": "jest --config ./scripts/jest/config.js",
+    "lint": "yarn lint:check --fix",
+    "lint:check": "eslint packages scripts website",
     "precommit": "lint-staged",
-    "release": "yarn clean-dist && yarn lint && yarn test && yarn build && npm publish",
-    "test": "flow && jest"
-  },
-  "babel": {
-    "presets": [
-      "react-native"
-    ],
-    "plugins": [
-      [
-        "transform-react-remove-prop-types",
-        {
-          "mode": "wrap"
-        }
-      ]
-    ]
-  },
-  "jest": {
-    "testEnvironment": "jsdom",
-    "timers": "fake",
-    "setupFiles": [
-      "raf/polyfill"
-    ],
-    "setupTestFrameworkScriptFile": "<rootDir>/jest-setup-framework.js",
-    "snapshotSerializers": [
-      "enzyme-to-json/serializer"
-    ]
-  },
-  "lint-staged": {
-    "**/*.js": [
-      "fmt:cmd",
-      "git update-index --again",
-      "lint:cmd"
-    ]
-  },
-  "dependencies": {
-    "animated": "^0.2.0",
-    "array-find-index": "^1.0.2",
-    "babel-runtime": "^6.26.0",
-    "create-react-class": "^15.6.2",
-    "debounce": "1.0.2",
-    "deep-assign": "^2.0.0",
-    "fbjs": "^0.8.16",
-    "hyphenate-style-name": "^1.0.2",
-    "inline-style-prefixer": "^3.0.8",
-    "normalize-css-color": "^1.0.2",
-    "prop-types": "^15.6.0",
-    "react-timer-mixin": "^0.13.3"
+    "prerelease": "yarn test && yarn compile",
+    "release": "node ./scripts/release/publish.js",
+    "postrelease": "yarn website:release && yarn benchmarks:release",
+    "test": "yarn flow && yarn lint:check && yarn jest"
   },
   "devDependencies": {
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.0",
-    "babel-eslint": "^7.2.3",
+    "babel-eslint": "^8.0.3",
     "babel-loader": "^7.1.2",
-    "babel-plugin-tester": "^4.0.0",
-    "babel-plugin-transform-react-remove-prop-types": "^0.4.9",
+    "babel-plugin-transform-class-properties": "^6.24.1",
+    "babel-plugin-transform-object-rest-spread": "^6.26.0",
+    "babel-plugin-transform-react-remove-prop-types": "^0.4.10",
+    "babel-preset-env": "^1.6.1",
+    "babel-preset-flow": "^6.23.0",
+    "babel-preset-react": "^6.24.1",
     "babel-preset-react-native": "^4.0.0",
     "caniuse-api": "^2.0.0",
     "del-cli": "^1.1.0",
-    "enzyme": "^3.0.0",
-    "enzyme-adapter-react-16": "^1.0.0",
-    "enzyme-to-json": "^3.0.1",
-    "eslint": "^4.6.1",
-    "eslint-config-prettier": "^2.6.0",
-    "eslint-plugin-promise": "^3.5.0",
-    "eslint-plugin-react": "^7.4.0",
-    "file-loader": "^1.1.4",
-    "flow-bin": "^0.49.1",
+    "enzyme": "^3.3.0",
+    "enzyme-adapter-react-16": "^1.1.0",
+    "enzyme-to-json": "^3.2.2",
+    "eslint": "^4.12.1",
+    "eslint-config-prettier": "^2.9.0",
+    "eslint-plugin-promise": "^3.6.0",
+    "eslint-plugin-react": "^7.5.1",
+    "flow-bin": "^0.63.1",
+    "glob": "^7.1.2",
+    "husky": "^0.14.3",
     "jest": "^21.2.1",
-    "lint-staged": "^4.1.3",
-    "prettier": "^1.7.3",
-    "raf": "^3.3.2",
-    "react": "^16.0.0",
-    "react-dom": "^16.0.0",
-    "react-test-renderer": "^16.0.0",
-    "url-loader": "^0.5.9",
-    "webpack": "^3.6.0",
-    "webpack-bundle-analyzer": "^2.9.0"
+    "lint-staged": "^6.0.0",
+    "prettier": "^1.8.2",
+    "raf": "^3.4.0",
+    "react": "^16.2.0",
+    "react-dom": "^16.2.0",
+    "react-test-renderer": "^16.2.0"
   },
-  "peerDependencies": {
-    "react": "16.x.x",
-    "react-dom": "16.x.x"
+  "workspaces": [
+    "packages/*",
+    "website"
+  ],
+  "lint-staged": {
+    "**/*.js": [
+      "fmt:cmd",
+      "git update-index --again",
+      "eslint"
+    ]
+  },
+  "prettier": {
+    "printWidth": 100,
+    "singleQuote": true
   },
   "author": "Nicolas Gallagher",
-  "license": "BSD-3-Clause",
-  "repository": {
-    "type": "git",
-    "url": "git://github.com/necolas/react-native-web.git"
-  },
-  "tags": [
-    "react"
-  ],
-  "keywords": [
-    "react",
-    "react-component",
-    "react-native",
-    "web"
-  ]
+  "license": "BSD-3-Clause"
 }

packages/babel-plugin-react-native-web/README.md

@@ -0,0 +1,44 @@
+# babel-plugin-react-native-web
+
+[![npm version][package-badge]][package-url] [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg)](https://reactjs.org/docs/how-to-contribute.html#your-first-pull-request)
+
+A Babel plugin that will alias `react-native` to `react-native-web` and exclude
+any modules not required by your app (keeping bundle size down).
+
+## Installation
+
+```
+yarn add --dev babel-plugin-react-native-web
+```
+
+## Usage
+
+**.babelrc**
+
+```
+{
+  "plugins": ["react-native-web"]
+}
+```
+
+## Example
+
+NOTE: `react-native-web` internal paths are _not stable_ and you must not rely
+on them. Always use the Babel plugin to optimize your build. What follows is an
+example of the rewrite performed by the plugin.
+
+**Before**
+
+```js
+import { StyleSheet, View } from 'react-native';
+```
+
+**After**
+
+```js
+import StyleSheet from 'react-native-web/dist/exports/StyleSheet';
+import View from 'react-native-web/dist/exports/View';
+```
+
+[package-badge]: https://img.shields.io/npm/v/babel-plugin-react-native-web.svg?style=flat
+[package-url]: https://yarnpkg.com/en/package/babel-plugin-react-native-web

packages/babel-plugin-react-native-web/index.js

@@ -0,0 +1 @@
+module.exports = require('./src');

packages/babel-plugin-react-native-web/package.json

@@ -0,0 +1,15 @@
+{
+  "name": "babel-plugin-react-native-web",
+  "version": "0.4.0",
+  "description": "Babel plugin for React Native for Web",
+  "main": "index.js",
+  "devDependencies": {
+    "babel-plugin-tester": "^5.0.0"
+  },
+  "author": "Nicolas Gallagher",
+  "license": "MIT",
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/necolas/react-native-web.git"
+  }
+}

packages/babel-plugin-react-native-web/src/__tests__/__snapshots__/index-test.js.snap

@@ -0,0 +1,109 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`export from "react-native" 1`] = `
+"
+export { View } from 'react-native';
+export { ColorPropType, StyleSheet, Text, createElement } from 'react-native';
+
+      ↓ ↓ ↓ ↓ ↓ ↓
+
+export { default as View } from 'react-native-web/dist/exports/View';
+export { default as ColorPropType } from 'react-native-web/dist/exports/ColorPropType';
+export { default as StyleSheet } from 'react-native-web/dist/exports/StyleSheet';
+export { default as Text } from 'react-native-web/dist/exports/Text';
+export { default as createElement } from 'react-native-web/dist/exports/createElement';
+"
+`;
+
+exports[`export from "react-native-web" 1`] = `
+"
+export { View } from 'react-native-web';
+export { ColorPropType, StyleSheet, Text, createElement } from 'react-native-web';
+
+      ↓ ↓ ↓ ↓ ↓ ↓
+
+export { default as View } from 'react-native-web/dist/exports/View';
+export { default as ColorPropType } from 'react-native-web/dist/exports/ColorPropType';
+export { default as StyleSheet } from 'react-native-web/dist/exports/StyleSheet';
+export { default as Text } from 'react-native-web/dist/exports/Text';
+export { default as createElement } from 'react-native-web/dist/exports/createElement';
+"
+`;
+
+exports[`import from "native-native" 1`] = `
+"
+import ReactNative from 'react-native';
+import { View } from 'react-native';
+import { Invalid, View as MyView, ViewPropTypes } from 'react-native';
+import * as ReactNativeModules from 'react-native';
+
+      ↓ ↓ ↓ ↓ ↓ ↓
+
+import ReactNative from 'react-native-web/dist/index';
+import View from 'react-native-web/dist/exports/View';
+import Invalid from 'react-native-web/dist/exports/Invalid';
+import MyView from 'react-native-web/dist/exports/View';
+import ViewPropTypes from 'react-native-web/dist/exports/ViewPropTypes';
+import * as ReactNativeModules from 'react-native-web/dist/index';
+"
+`;
+
+exports[`import from "react-native-web" 1`] = `
+"
+import { createElement } from 'react-native-web';
+import { ColorPropType, StyleSheet, View, TouchableOpacity, processColor } from 'react-native-web';
+import * as ReactNativeModules from 'react-native-web';
+
+      ↓ ↓ ↓ ↓ ↓ ↓
+
+import createElement from 'react-native-web/dist/exports/createElement';
+import ColorPropType from 'react-native-web/dist/exports/ColorPropType';
+import StyleSheet from 'react-native-web/dist/exports/StyleSheet';
+import View from 'react-native-web/dist/exports/View';
+import TouchableOpacity from 'react-native-web/dist/exports/TouchableOpacity';
+import processColor from 'react-native-web/dist/exports/processColor';
+import * as ReactNativeModules from 'react-native-web/dist/index';
+"
+`;
+
+exports[`require "react-native" 1`] = `
+"
+const ReactNative = require('react-native');
+const { View } = require('react-native');
+const {  StyleSheet, TouchableOpacity } = require('react-native');
+
+      ↓ ↓ ↓ ↓ ↓ ↓
+
+const ReactNative = require('react-native-web/dist/index').default;
+
+const View = require('react-native-web/dist/exports/View').default;
+
+const StyleSheet = require('react-native-web/dist/exports/StyleSheet').default;
+
+const TouchableOpacity = require('react-native-web/dist/exports/TouchableOpacity').default;
+"
+`;
+
+exports[`require "react-native-web" 1`] = `
+"
+const ReactNative = require('react-native-web');
+const { createElement } = require('react-native-web');
+const { ColorPropType, StyleSheet, View, TouchableOpacity, processColor } = require('react-native-web');
+
+      ↓ ↓ ↓ ↓ ↓ ↓
+
+const ReactNative = require('react-native-web/dist/index').default;
+
+const createElement = require('react-native-web/dist/exports/createElement').default;
+
+const ColorPropType = require('react-native-web/dist/exports/ColorPropType').default;
+
+const StyleSheet = require('react-native-web/dist/exports/StyleSheet').default;
+
+const View = require('react-native-web/dist/exports/View').default;
+
+const TouchableOpacity = require('react-native-web/dist/exports/TouchableOpacity').default;
+
+const processColor = require('react-native-web/dist/exports/processColor').default;
+"
+`;

packages/babel-plugin-react-native-web/src/__tests__/index-test.js

@@ -0,0 +1,52 @@
+const plugin = require('..');
+const pluginTester = require('babel-plugin-tester');
+
+const tests = [
+  // import react-native
+  {
+    title: 'import from "native-native"',
+    code: `import ReactNative from 'react-native';
+import { View } from 'react-native';
+import { Invalid, View as MyView, ViewPropTypes } from 'react-native';
+import * as ReactNativeModules from 'react-native';`,
+    snapshot: true
+  },
+  {
+    title: 'import from "react-native-web"',
+    code: `import { createElement } from 'react-native-web';
+import { ColorPropType, StyleSheet, View, TouchableOpacity, processColor } from 'react-native-web';
+import * as ReactNativeModules from 'react-native-web';`,
+    snapshot: true
+  },
+  {
+    title: 'export from "react-native"',
+    code: `export { View } from 'react-native';
+export { ColorPropType, StyleSheet, Text, createElement } from 'react-native';`,
+    snapshot: true
+  },
+  {
+    title: 'export from "react-native-web"',
+    code: `export { View } from 'react-native-web';
+export { ColorPropType, StyleSheet, Text, createElement } from 'react-native-web';`,
+    snapshot: true
+  },
+  {
+    title: 'require "react-native"',
+    code: `const ReactNative = require('react-native');
+const { View } = require('react-native');
+const {  StyleSheet, TouchableOpacity } = require('react-native');`,
+    snapshot: true
+  },
+  {
+    title: 'require "react-native-web"',
+    code: `const ReactNative = require('react-native-web');
+const { createElement } = require('react-native-web');
+const { ColorPropType, StyleSheet, View, TouchableOpacity, processColor } = require('react-native-web');`,
+    snapshot: true
+  }
+];
+
+pluginTester({
+  plugin,
+  tests
+});

packages/babel-plugin-react-native-web/src/index.js

@@ -0,0 +1,126 @@
+const getDistLocation = importName =>
+  importName ? `react-native-web/dist/exports/${importName}` : undefined;
+
+const isReactNativeRequire = (t, node) => {
+  const { declarations } = node;
+  if (declarations.length > 1) {
+    return false;
+  }
+  const { id, init } = declarations[0];
+  return (
+    (t.isObjectPattern(id) || t.isIdentifier(id)) &&
+    t.isCallExpression(init) &&
+    t.isIdentifier(init.callee) &&
+    init.callee.name === 'require' &&
+    init.arguments.length === 1 &&
+    (init.arguments[0].value === 'react-native' || init.arguments[0].value === 'react-native-web')
+  );
+};
+
+const isReactNativeModule = ({ source, specifiers }) =>
+  source &&
+  (source.value === 'react-native' || source.value === 'react-native-web') &&
+  specifiers.length;
+
+module.exports = function({ types: t }) {
+  return {
+    name: 'Rewrite react-native to react-native-web',
+    visitor: {
+      ImportDeclaration(path, state) {
+        const { specifiers } = path.node;
+        if (isReactNativeModule(path.node)) {
+          const imports = specifiers
+            .map(specifier => {
+              if (t.isImportSpecifier(specifier)) {
+                const importName = specifier.imported.name;
+                const distLocation = getDistLocation(importName);
+
+                if (distLocation) {
+                  return t.importDeclaration(
+                    [t.importDefaultSpecifier(t.identifier(specifier.local.name))],
+                    t.stringLiteral(distLocation)
+                  );
+                }
+              }
+              return t.importDeclaration(
+                [specifier],
+                t.stringLiteral('react-native-web/dist/index')
+              );
+            })
+            .filter(Boolean);
+
+          path.replaceWithMultiple(imports);
+        }
+      },
+      ExportNamedDeclaration(path, state) {
+        const { specifiers } = path.node;
+        if (isReactNativeModule(path.node)) {
+          const exports = specifiers
+            .map(specifier => {
+              if (t.isExportSpecifier(specifier)) {
+                const exportName = specifier.exported.name;
+                const localName = specifier.local.name;
+                const distLocation = getDistLocation(localName);
+
+                if (distLocation) {
+                  return t.exportNamedDeclaration(
+                    null,
+                    [t.exportSpecifier(t.identifier('default'), t.identifier(exportName))],
+                    t.stringLiteral(distLocation)
+                  );
+                }
+              }
+              return t.exportNamedDeclaration(
+                null,
+                [specifier],
+                t.stringLiteral('react-native-web/dist/index')
+              );
+            })
+            .filter(Boolean);
+
+          path.replaceWithMultiple(exports);
+        }
+      },
+      VariableDeclaration(path, state) {
+        if (isReactNativeRequire(t, path.node)) {
+          const { id } = path.node.declarations[0];
+          if (t.isObjectPattern(id)) {
+            const imports = id.properties
+              .map(identifier => {
+                const distLocation = getDistLocation(identifier.key.name);
+                if (distLocation) {
+                  return t.variableDeclaration(path.node.kind, [
+                    t.variableDeclarator(
+                      t.identifier(identifier.value.name),
+                      t.memberExpression(
+                        t.callExpression(t.identifier('require'), [t.stringLiteral(distLocation)]),
+                        t.identifier('default')
+                      )
+                    )
+                  ]);
+                }
+              })
+              .filter(Boolean);
+
+            path.replaceWithMultiple(imports);
+          } else if (t.isIdentifier(id)) {
+            const name = id.name;
+            const importIndex = t.variableDeclaration(path.node.kind, [
+              t.variableDeclarator(
+                t.identifier(name),
+                t.memberExpression(
+                  t.callExpression(t.identifier('require'), [
+                    t.stringLiteral('react-native-web/dist/index')
+                  ]),
+                  t.identifier('default')
+                )
+              )
+            ]);
+
+            path.replaceWith(importIndex);
+          }
+        }
+      }
+    }
+  };
+};

packages/benchmarks/README.md

@@ -0,0 +1,92 @@
+# benchmarks
+
+Try the [benchmarks app](https://necolas.github.io/react-native-web/benchmarks) online.
+
+To run the benchmarks locally:
+
+```
+yarn benchmarks
+open ./packages/benchmarks/dist/index.html
+```
+
+Develop against these benchmarks:
+
+```
+yarn compile --watch
+yarn benchmarks --watch
+```
+
+## Notes
+
+These benchmarks are approximations of extreme cases that libraries may
+encounter. The deep and wide tree cases look at the performance of mounting and
+rendering large trees of styled elements. The dynamic case looks at the
+performance of repeated style updates to a large mounted tree. Some libraries
+must inject new styles for each "dynamic style", whereas others may not.
+Libraries without support for dynamic styles (i.e., they rely on user-authored
+inline styles) do not include a corresponding benchmark.
+
+The components used in the render benchmarks are simple enough to be
+implemented by multiple UI or style libraries. The benchmark implementations
+and the features of the style libraries are _only approximately equivalent in
+functionality_.
+
+No benchmark will run for more than 20 seconds.
+
+## Example results
+
+### MacBook Pro (2011)
+
+MacBook Pro (13-inch, Early 2011); 2.3 GHz Intel Core i5; 8 GB 1333 MHz DDR3 RAM. Google Chrome 63.
+
+Typical render timings: mean ± standard deviations.
+
+| Implementation                        | Mount deep tree (ms)    | Mount wide tree (ms)    | Dynamic update (ms)     |
+| :--- | ---: | ---: | ---: |
+| `css-modules`                         |  `15.23` `±04.31` | `21.27` `±07.03` | - |
+| `react-native-web@0.3.2`              |  `17.52` `±04.44` | `24.14` `±04.39` | `15.03` `±02.22` |
+| `inline-styles`                       |  `50.06` `±06.70` | `76.38` `±09.58` | `06.43` `±02.02` |
+
+Other libraries
+
+| Implementation                        | Mount deep tree (ms)    | Mount wide tree (ms)    | Dynamic update (ms)     |
+| :--- | ---: | ---: | ---: |
+| `aphrodite@1.2.5`                     |  `17.27` `±05.96` |  `24.89` `±08.36` | - |
+| `glamor@2.20.40`                      |  `21.59` `±05.38` |  `27.93` `±07.56` | ‡ |
+| `emotion@8.0.12`                      |  `21.07` `±04.16` |  `31.40` `±09.40` | ‡ `19.80` `±13.56` |
+| `styletron-react@3.0.3`               |  `23.55` `±05.14` |  `34.26` `±07.58` |   `10.39` `±02.94` |
+| `react-fela@5.0.0`                    |  `27.58` `±04.26` |  `39.54` `±05.46` |   `10.93` `±01.69` |
+| `react-jss@8.2.1`                     |  `27.31` `±07.87` |  `40.74` `±10.67` | - |
+| `styled-jsx@2.2.1`                    |  `27.46` `±07.85` |  `41.47` `±11.53` |   `29.16` `±09.98` |
+| `styled-components@2.4.0`             |  `43.89` `±06.99` |  `63.26` `±09.02` |   `16.17` `±03.71` |
+| `reactxp@0.51.0-alpha.9`              |  `51.86` `±07.21` |  `78.80` `±11.85` |   `15.04` `±03.92` |
+| `radium@0.21.0`                       | `101.06` `±13.00` | `144.46` `±16.94` |   `17.44` `±03.59` |
+
+### Moto G4
+
+Moto G4 (Android 7); Octa-core (4x1.5 GHz & 4x1.2 Ghz); 2 GB RAM. Google Chrome 63
+
+Typical render timings: mean ± standard deviations.
+
+| Implementation                        | Mount deep tree (ms)    | Mount wide tree (ms)    | Dynamic update (ms)     |
+| :--- | ---: | ---: | ---: |
+| `css-modules`                         |   `56.18` `±19.54` |   `75.95` `±23.55` | - |
+| `react-native-web@0.3.2`              |   `68.53` `±21.00` |  `101.03` `±25.32` | `60.57` `±09.07` |
+| `inline-styles`                       |  `140.32` `±23.91` |  `208.55` `±35.25` | `20.36` `±04.92` |
+
+Other libraries
+
+| Implementation                        | Mount deep tree (ms)    | Mount wide tree (ms)    | Dynamic update (ms)     |
+| :--- | ---: | ---: | ---: |
+| `aphrodite@1.2.5`                     |   `58.77` `±19.73` |   `85.83` `±24.64` | - |
+| `glamor@2.20.40`                      |   `81.05` `±15.87` |  `104.02` `±20.92` | ‡ |
+| `emotion@8.0.12`                      |   `77.12` `±19.61` |  `112.04` `±24.43` | ‡ `80.40` `±40.56` |
+| `styletron-react@3.0.3`               |   `91.00` `±17.95` |  `130.49` `±20.06` |   `39.70` `±06.85` |
+| `react-fela@5.0.0`                    |  `101.36` `±19.55` |  `142.18` `±21.87` |   `43.64` `±12.24` |
+| `styled-jsx@2.2.1`                    |  `101.60` `±25.26` |  `144.12` `±30.79` |   `115.63` `±32.77` |
+| `react-jss@8.2.1`                     |  `112.46` `±32.07` |  `165.96` `±42.54` | - |
+| `styled-components@2.4.0`             |  `159.85` `±24.30` |  `231.00` `±31.34` |   `53.86` `±13.40` |
+| `reactxp@0.51.0-alpha.9`              |  `182.05` `±30.72` |  `261.25` `±35.54` |   `58.20` `±08.62` |
+| `radium@0.21.0`                       |  `323.93` `±41.46` |  `464.70` `±53.93` |   `59.13` `±09.76` |
+
+‡Glamor essentially crashes the browser tab. Emotion gets slower every iteration.

packages/benchmarks/index.html

@@ -0,0 +1,16 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>Performance tests</title>
+  <meta name="viewport" content="width=device-width">
+  <style>
+    html, body { height: 100%; width: 100%; overflow: hidden; }
+    .root { height: 100%; overflow: hidden; }
+  </style>
+</head>
+<body>
+  <div class="root"></div>
+  <script src="./bundle.js"></script>
+</body>
+</html>

packages/benchmarks/package.json

@@ -0,0 +1,37 @@
+{
+  "private": true,
+  "name": "benchmarks",
+  "version": "0.4.0",
+  "scripts": {
+    "build": "mkdir -p dist && cp -f index.html dist/index.html && webpack --config ./webpack.config.js",
+    "release": "yarn build && git checkout gh-pages && rm -rf ../../benchmarks && mv dist ../../benchmarks && git add -A && git commit -m \"Benchmarks deploy\" && git push origin gh-pages && git checkout -"
+  },
+  "dependencies": {
+    "aphrodite": "1.2.5",
+    "classnames": "^2.2.5",
+    "d3-scale-chromatic": "^1.1.1",
+    "emotion": "8.0.12",
+    "fela": "6.1.3",
+    "glamor": "2.20.40",
+    "radium": "0.21.2",
+    "react": "^16.2.0",
+    "react-component-benchmark": "^0.0.4",
+    "react-dom": "^16.2.0",
+    "react-fela": "6.2.4",
+    "react-jss": "8.2.1",
+    "react-native-web": "0.4.0",
+    "reactxp": "0.51.2",
+    "style-loader": "0.20.1",
+    "styled-components": "3.1.2",
+    "styled-jsx": "2.2.2",
+    "styletron-client": "3.0.4",
+    "styletron-react": "3.0.4"
+  },
+  "devDependencies": {
+    "babel-plugin-react-native-web": "0.4.0",
+    "css-loader": "^0.28.9",
+    "style-loader": "^0.19.1",
+    "webpack": "^3.10.0",
+    "webpack-bundle-analyzer": "^2.9.2"
+  }
+}

packages/benchmarks/src/app/App.js

@@ -0,0 +1,298 @@
+/* eslint-disable react/prop-types */
+
+import Benchmark from './Benchmark';
+import { Picker, StyleSheet, ScrollView, TouchableOpacity, View } from 'react-native';
+import React, { Component } from 'react';
+import Button from './Button';
+import { IconClear, IconEye } from './Icons';
+import ReportCard from './ReportCard';
+import Text from './Text';
+import Layout from './Layout';
+import { colors } from './theme';
+
+const Overlay = () => <View style={[StyleSheet.absoluteFill, { zIndex: 2 }]} />;
+
+export default class App extends Component {
+  static displayName = '@app/App';
+
+  constructor(props, context) {
+    super(props, context);
+    const currentBenchmarkName = Object.keys(props.tests)[0];
+    this.state = {
+      currentBenchmarkName,
+      currentLibraryName: 'react-native-web',
+      status: 'idle',
+      results: []
+    };
+  }
+
+  render() {
+    const { tests } = this.props;
+    const { currentBenchmarkName, status, currentLibraryName, results } = this.state;
+    const currentImplementation = tests[currentBenchmarkName][currentLibraryName];
+    const { Component, Provider, getComponentProps, sampleCount } = currentImplementation;
+
+    return (
+      <Layout
+        actionPanel={
+          <View>
+            <View style={styles.pickers}>
+              <View style={styles.pickerContainer}>
+                <Text style={styles.pickerTitle}>Library</Text>
+                <Text style={{ fontWeight: 'bold' }}>{currentLibraryName}</Text>
+
+                <Picker
+                  enabled={status !== 'running'}
+                  onValueChange={this._handleChangeLibrary}
+                  selectedValue={currentLibraryName}
+                  style={styles.picker}
+                >
+                  {Object.keys(tests[currentBenchmarkName]).map(libraryName => (
+                    <Picker.Item key={libraryName} label={libraryName} value={libraryName} />
+                  ))}
+                </Picker>
+              </View>
+              <View style={{ width: 1, backgroundColor: colors.fadedGray }} />
+              <View style={styles.pickerContainer}>
+                <Text style={styles.pickerTitle}>Benchmark</Text>
+                <Text>{currentBenchmarkName}</Text>
+                <Picker
+                  enabled={status !== 'running'}
+                  onValueChange={this._handleChangeBenchmark}
+                  selectedValue={currentBenchmarkName}
+                  style={styles.picker}
+                >
+                  {Object.keys(tests).map(test => (
+                    <Picker.Item key={test} label={test} value={test} />
+                  ))}
+                </Picker>
+              </View>
+            </View>
+
+            <View style={{ flexDirection: 'row', height: 50 }}>
+              <View style={styles.grow}>
+                <Button
+                  onPress={this._handleStart}
+                  style={styles.button}
+                  title={status === 'running' ? 'Running…' : 'Run'}
+                />
+              </View>
+            </View>
+
+            {status === 'running' ? <Overlay /> : null}
+          </View>
+        }
+        listPanel={
+          <View style={styles.listPanel}>
+            <View style={styles.grow}>
+              <View style={styles.listBar}>
+                <View style={styles.iconClearContainer}>
+                  <TouchableOpacity onPress={this._handleClear}>
+                    <IconClear />
+                  </TouchableOpacity>
+                </View>
+              </View>
+              <ScrollView ref={this._setScrollRef} style={styles.grow}>
+                {results.map((r, i) => (
+                  <ReportCard
+                    benchmarkName={r.benchmarkName}
+                    key={i}
+                    libraryName={r.libraryName}
+                    libraryVersion={r.libraryVersion}
+                    mean={r.mean}
+                    meanLayout={r.meanLayout}
+                    meanScripting={r.meanScripting}
+                    runTime={r.runTime}
+                    sampleCount={r.sampleCount}
+                    stdDev={r.stdDev}
+                  />
+                ))}
+                {status === 'running' ? (
+                  <ReportCard
+                    benchmarkName={currentBenchmarkName}
+                    libraryName={currentLibraryName}
+                  />
+                ) : null}
+              </ScrollView>
+            </View>
+            {status === 'running' ? <Overlay /> : null}
+          </View>
+        }
+        viewPanel={
+          <View style={styles.viewPanel}>
+            <View style={styles.iconEyeContainer}>
+              <TouchableOpacity onPress={this._handleVisuallyHideBenchmark}>
+                <IconEye style={styles.iconEye} />
+              </TouchableOpacity>
+            </View>
+
+            <Provider>
+              {status === 'running' ? (
+                <React.Fragment>
+                  <View ref={this._setBenchWrapperRef}>
+                    <Benchmark
+                      component={Component}
+                      forceLayout={true}
+                      getComponentProps={getComponentProps}
+                      onComplete={this._createHandleComplete({
+                        sampleCount,
+                        benchmarkName: currentBenchmarkName,
+                        libraryName: currentLibraryName
+                      })}
+                      ref={this._setBenchRef}
+                      sampleCount={sampleCount}
+                      timeout={20000}
+                      type={Component.benchmarkType}
+                    />
+                  </View>
+                </React.Fragment>
+              ) : (
+                <Component {...getComponentProps({ cycle: 10 })} />
+              )}
+            </Provider>
+
+            {status === 'running' ? <Overlay /> : null}
+          </View>
+        }
+      />
+    );
+  }
+
+  _handleChangeBenchmark = value => {
+    this.setState(() => ({ currentBenchmarkName: value }));
+  };
+
+  _handleChangeLibrary = value => {
+    this.setState(() => ({ currentLibraryName: value }));
+  };
+
+  _handleStart = () => {
+    this.setState(
+      () => ({ status: 'running' }),
+      () => {
+        if (this._shouldHideBenchmark && this._benchWrapperRef) {
+          this._benchWrapperRef.setNativeProps({ style: { opacity: 0 } });
+        }
+        this._benchmarkRef.start();
+        this._scrollToEnd();
+      }
+    );
+  };
+
+  // hide the benchmark as it is performed (no flashing on screen)
+  _handleVisuallyHideBenchmark = () => {
+    this._shouldHideBenchmark = !this._shouldHideBenchmark;
+    if (this._benchWrapperRef) {
+      this._benchWrapperRef.setNativeProps({
+        style: { opacity: this._shouldHideBenchmark ? 0 : 1 }
+      });
+    }
+  };
+
+  _createHandleComplete = ({ benchmarkName, libraryName, sampleCount }) => results => {
+    this.setState(
+      state => ({
+        results: state.results.concat([
+          {
+            ...results,
+            benchmarkName,
+            libraryName,
+            libraryVersion: this.props.tests[benchmarkName][libraryName].version
+          }
+        ]),
+        status: 'complete'
+      }),
+      this._scrollToEnd
+    );
+    // console.log(results);
+    // console.log(results.samples.map(sample => sample.elapsed.toFixed(1)).join('\n'));
+  };
+
+  _handleClear = () => {
+    this.setState(() => ({ results: [] }));
+  };
+
+  _setBenchRef = ref => {
+    this._benchmarkRef = ref;
+  };
+
+  _setBenchWrapperRef = ref => {
+    this._benchWrapperRef = ref;
+  };
+
+  _setScrollRef = ref => {
+    this._scrollRef = ref;
+  };
+
+  // scroll the most recent result into view
+  _scrollToEnd = () => {
+    window.requestAnimationFrame(() => {
+      if (this._scrollRef) {
+        this._scrollRef.scrollToEnd();
+      }
+    });
+  };
+}
+
+const styles = StyleSheet.create({
+  viewPanel: {
+    flex: 1,
+    justifyContent: 'center',
+    alignItems: 'center',
+    overflow: 'hidden',
+    backgroundColor: 'black'
+  },
+  iconEye: {
+    color: 'white',
+    height: 32
+  },
+  iconEyeContainer: {
+    position: 'absolute',
+    top: 10,
+    right: 10,
+    zIndex: 1
+  },
+  iconClearContainer: {
+    height: '100%',
+    marginLeft: 5
+  },
+  grow: {
+    flex: 1
+  },
+  listPanel: {
+    flex: 1,
+    width: '100%',
+    marginHorizontal: 'auto'
+  },
+  listBar: {
+    padding: 5,
+    alignItems: 'center',
+    flexDirection: 'row',
+    backgroundColor: colors.fadedGray,
+    borderBottomWidth: 1,
+    borderBottomColor: colors.mediumGray,
+    justifyContent: 'flex-end'
+  },
+  pickers: {
+    flexDirection: 'row'
+  },
+  pickerContainer: {
+    flex: 1,
+    padding: 5
+  },
+  pickerTitle: {
+    fontSize: 12,
+    color: colors.deepGray
+  },
+  picker: {
+    ...StyleSheet.absoluteFillObject,
+    appearance: 'none',
+    opacity: 0,
+    width: '100%'
+  },
+  button: {
+    borderRadius: 0,
+    fontSize: 32,
+    flex: 1
+  }
+});

packages/benchmarks/src/app/Benchmark/index.js

@@ -0,0 +1,247 @@
+/* global $Values */
+/**
+ * @flow
+ */
+import * as Timing from './timing';
+import React, { Component } from 'react';
+import { getMean, getMedian, getStdDev } from './math';
+
+import type { BenchResultsType, FullSampleTimingType, SampleTimingType } from './types';
+
+export const BenchmarkType = {
+  MOUNT: 'mount',
+  UPDATE: 'update',
+  UNMOUNT: 'unmount'
+};
+
+const shouldRender = (cycle: number, type: $Values<typeof BenchmarkType>): boolean => {
+  switch (type) {
+    // Render every odd iteration (first, third, etc)
+    // Mounts and unmounts the component
+    case BenchmarkType.MOUNT:
+    case BenchmarkType.UNMOUNT:
+      return !((cycle + 1) % 2);
+    // Render every iteration (updates previously rendered module)
+    case BenchmarkType.UPDATE:
+      return true;
+    default:
+      return false;
+  }
+};
+
+const shouldRecord = (cycle: number, type: $Values<typeof BenchmarkType>): boolean => {
+  switch (type) {
+    // Record every odd iteration (when mounted: first, third, etc)
+    case BenchmarkType.MOUNT:
+      return !((cycle + 1) % 2);
+    // Record every iteration
+    case BenchmarkType.UPDATE:
+      return true;
+    // Record every even iteration (when unmounted)
+    case BenchmarkType.UNMOUNT:
+      return !(cycle % 2);
+    default:
+      return false;
+  }
+};
+
+const isDone = (
+  cycle: number,
+  sampleCount: number,
+  type: $Values<typeof BenchmarkType>
+): boolean => {
+  switch (type) {
+    case BenchmarkType.MOUNT:
+      return cycle >= sampleCount * 2 - 1;
+    case BenchmarkType.UPDATE:
+      return cycle >= sampleCount - 1;
+    case BenchmarkType.UNMOUNT:
+      return cycle >= sampleCount * 2;
+    default:
+      return true;
+  }
+};
+
+const sortNumbers = (a: number, b: number): number => a - b;
+
+type BenchmarkPropsType = {
+  component: typeof React.Component,
+  forceLayout?: boolean,
+  getComponentProps: Function,
+  onComplete: (x: BenchResultsType) => void,
+  sampleCount: number,
+  timeout: number,
+  type: $Values<typeof BenchmarkType>
+};
+
+type BenchmarkStateType = {
+  componentProps: Object,
+  cycle: number,
+  running: boolean
+};
+
+/**
+ * Benchmark
+ * TODO: documentation
+ */
+export default class Benchmark extends Component<BenchmarkPropsType, BenchmarkStateType> {
+  _raf: ?Function;
+  _startTime: number;
+  _samples: Array<SampleTimingType>;
+
+  static displayName = 'Benchmark';
+
+  static defaultProps = {
+    sampleCount: 50,
+    timeout: 10000, // 10 seconds
+    type: BenchmarkType.MOUNT
+  };
+
+  static Type = BenchmarkType;
+
+  constructor(props: BenchmarkPropsType, context?: {}) {
+    super(props, context);
+    const cycle = 0;
+    const componentProps = props.getComponentProps({ cycle });
+    this.state = {
+      componentProps,
+      cycle,
+      running: false
+    };
+    this._startTime = 0;
+    this._samples = [];
+  }
+
+  componentWillReceiveProps(nextProps: BenchmarkPropsType) {
+    if (nextProps) {
+      this.setState(state => ({ componentProps: nextProps.getComponentProps(state.cycle) }));
+    }
+  }
+
+  componentWillUpdate(nextProps: BenchmarkPropsType, nextState: BenchmarkStateType) {
+    if (nextState.running && !this.state.running) {
+      this._startTime = Timing.now();
+    }
+  }
+
+  componentDidUpdate() {
+    const { forceLayout, sampleCount, timeout, type } = this.props;
+    const { cycle, running } = this.state;
+
+    if (running && shouldRecord(cycle, type)) {
+      this._samples[cycle].scriptingEnd = Timing.now();
+
+      // force style recalc that would otherwise happen before the next frame
+      if (forceLayout) {
+        this._samples[cycle].layoutStart = Timing.now();
+        if (document.body) {
+          document.body.offsetWidth;
+        }
+        this._samples[cycle].layoutEnd = Timing.now();
+      }
+    }
+
+    if (running) {
+      const now = Timing.now();
+      if (!isDone(cycle, sampleCount, type) && now - this._startTime < timeout) {
+        this._handleCycleComplete();
+      } else {
+        this._handleComplete(now);
+      }
+    }
+  }
+
+  componentWillUnmount() {
+    if (this._raf) {
+      window.cancelAnimationFrame(this._raf);
+    }
+  }
+
+  render() {
+    const { component: Component, type } = this.props;
+    const { componentProps, cycle, running } = this.state;
+    if (running && shouldRecord(cycle, type)) {
+      this._samples[cycle] = { scriptingStart: Timing.now() };
+    }
+    return running && shouldRender(cycle, type) ? <Component {...componentProps} /> : null;
+  }
+
+  start() {
+    this._samples = [];
+    this.setState(() => ({ running: true, cycle: 0 }));
+  }
+
+  _handleCycleComplete() {
+    const { getComponentProps, type } = this.props;
+    const { cycle } = this.state;
+
+    let componentProps;
+    if (getComponentProps) {
+      // Calculate the component props outside of the time recording (render)
+      // so that it doesn't skew results
+      componentProps = getComponentProps({ cycle });
+      // make sure props always change for update tests
+      if (type === BenchmarkType.UPDATE) {
+        componentProps['data-test'] = cycle;
+      }
+    }
+
+    this._raf = window.requestAnimationFrame(() => {
+      this.setState((state: BenchmarkStateType) => ({
+        cycle: state.cycle + 1,
+        componentProps
+      }));
+    });
+  }
+
+  getSamples(): Array<FullSampleTimingType> {
+    return this._samples.reduce(
+      (
+        memo: Array<FullSampleTimingType>,
+        { scriptingStart, scriptingEnd, layoutStart, layoutEnd }: SampleTimingType
+      ): Array<FullSampleTimingType> => {
+        memo.push({
+          start: scriptingStart,
+          end: layoutEnd || scriptingEnd || 0,
+          scriptingStart,
+          scriptingEnd: scriptingEnd || 0,
+          layoutStart,
+          layoutEnd
+        });
+        return memo;
+      },
+      []
+    );
+  }
+
+  _handleComplete(endTime: number) {
+    const { onComplete } = this.props;
+    const samples = this.getSamples();
+
+    this.setState(() => ({ running: false, cycle: 0 }));
+
+    const runTime = endTime - this._startTime;
+    const sortedElapsedTimes = samples.map(({ start, end }) => end - start).sort(sortNumbers);
+    const sortedScriptingElapsedTimes = samples
+      .map(({ scriptingStart, scriptingEnd }) => scriptingEnd - scriptingStart)
+      .sort(sortNumbers);
+    const sortedLayoutElapsedTimes = samples
+      .map(({ layoutStart, layoutEnd }) => (layoutEnd || 0) - (layoutStart || 0))
+      .sort(sortNumbers);
+
+    onComplete({
+      startTime: this._startTime,
+      endTime,
+      runTime,
+      sampleCount: samples.length,
+      samples: samples,
+      max: sortedElapsedTimes[sortedElapsedTimes.length - 1],
+      min: sortedElapsedTimes[0],
+      median: getMedian(sortedElapsedTimes),
+      mean: getMean(sortedElapsedTimes),
+      stdDev: getStdDev(sortedElapsedTimes),
+      meanLayout: getMean(sortedLayoutElapsedTimes),
+      meanScripting: getMean(sortedScriptingElapsedTimes)
+    });
+  }
+}

packages/benchmarks/src/app/Benchmark/math.js

@@ -0,0 +1,27 @@
+// @flow
+type ValuesType = Array<number>;
+
+export const getStdDev = (values: ValuesType): number => {
+  const avg = getMean(values);
+
+  const squareDiffs = values.map((value: number) => {
+    const diff = value - avg;
+    return diff * diff;
+  });
+
+  return Math.sqrt(getMean(squareDiffs));
+};
+
+export const getMean = (values: ValuesType): number => {
+  const sum = values.reduce((sum: number, value: number) => sum + value, 0);
+  return sum / values.length;
+};
+
+export const getMedian = (values: ValuesType): number => {
+  if (values.length === 1) {
+    return values[0];
+  }
+
+  const numbers = values.sort((a: number, b: number) => a - b);
+  return (numbers[(numbers.length - 1) >> 1] + numbers[numbers.length >> 1]) / 2;
+};

packages/benchmarks/src/app/Benchmark/timing.js

@@ -0,0 +1,18 @@
+// @flow
+
+const NS_PER_MS = 1e6;
+const MS_PER_S = 1e3;
+
+// Returns a high resolution time (if possible) in milliseconds
+export function now(): number {
+  if (window && window.performance) {
+    return window.performance.now();
+  } else if (process && process.hrtime) {
+    const [seconds, nanoseconds] = process.hrtime();
+    const secInMS = seconds * MS_PER_S;
+    const nSecInMS = nanoseconds / NS_PER_MS;
+    return secInMS + nSecInMS;
+  } else {
+    return Date.now();
+  }
+}

packages/benchmarks/src/app/Benchmark/types.js

@@ -0,0 +1,31 @@
+/**
+ * @flow
+ */
+export type BenchResultsType = {
+  startTime: number,
+  endTime: number,
+  runTime: number,
+  sampleCount: number,
+  samples: Array<FullSampleTimingType>,
+  max: number,
+  min: number,
+  median: number,
+  mean: number,
+  stdDev: number
+};
+
+export type SampleTimingType = {
+  scriptingStart: number,
+  scriptingEnd?: number,
+  layoutStart?: number,
+  layoutEnd?: number
+};
+
+export type FullSampleTimingType = {
+  start: number,
+  end: number,
+  scriptingStart: number,
+  scriptingEnd: number,
+  layoutStart?: number,
+  layoutEnd?: number
+};

packages/benchmarks/src/app/Button.js

@@ -0,0 +1,70 @@
+import { ColorPropType, StyleSheet, TouchableHighlight, Text } from 'react-native';
+import React, { Component } from 'react';
+import { bool, func, string } from 'prop-types';
+
+export default class Button extends Component<*> {
+  static displayName = '@app/Button';
+
+  static propTypes = {
+    accessibilityLabel: string,
+    color: ColorPropType,
+    disabled: bool,
+    onPress: func.isRequired,
+    style: TouchableHighlight.propTypes.style,
+    testID: string,
+    textStyle: Text.propTypes.style,
+    title: string.isRequired
+  };
+
+  render() {
+    const {
+      accessibilityLabel,
+      color,
+      disabled,
+      onPress,
+      style,
+      textStyle,
+      testID,
+      title
+    } = this.props;
+
+    return (
+      <TouchableHighlight
+        accessibilityLabel={accessibilityLabel}
+        accessibilityRole="button"
+        disabled={disabled}
+        onPress={onPress}
+        style={[
+          styles.button,
+          style,
+          color && { backgroundColor: color },
+          disabled && styles.buttonDisabled
+        ]}
+        testID={testID}
+      >
+        <Text style={[styles.text, textStyle, disabled && styles.textDisabled]}>{title}</Text>
+      </TouchableHighlight>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  button: {
+    backgroundColor: '#2196F3',
+    borderRadius: 0,
+    justifyContent: 'center'
+  },
+  text: {
+    color: '#fff',
+    fontWeight: '500',
+    padding: 8,
+    textAlign: 'center',
+    textTransform: 'uppercase'
+  },
+  buttonDisabled: {
+    backgroundColor: '#dfdfdf'
+  },
+  textDisabled: {
+    color: '#a1a1a1'
+  }
+});

packages/benchmarks/src/app/Icons.js

@@ -0,0 +1,55 @@
+import React, { Fragment } from 'react';
+import { createElement, StyleSheet, Text } from 'react-native';
+
+const styles = StyleSheet.create({
+  root: {
+    display: 'inline-block',
+    fill: 'currentcolor',
+    height: '1.25em',
+    maxWidth: '100%',
+    position: 'relative',
+    userSelect: 'none',
+    textAlignVertical: 'text-bottom'
+  }
+});
+
+const createIcon = children => {
+  const Icon = props =>
+    createElement(
+      'svg',
+      {
+        style: StyleSheet.compose(styles.root, props.style),
+        width: 24,
+        height: 24,
+        viewBox: '0 0 24 24'
+      },
+      children
+    );
+  Icon.propTypes = {
+    style: Text.propTypes.style
+  };
+  return Icon;
+};
+
+export const IconClear = createIcon(
+  <Fragment>
+    <path d="M0 0h24v24H0z" id="bounds" opacity="0" />
+    <path d="M12 1.25C6.072 1.25 1.25 6.072 1.25 12S6.072 22.75 12 22.75 22.75 17.928 22.75 12 17.928 1.25 12 1.25zm0 1.5c2.28 0 4.368.834 5.982 2.207L4.957 17.982C3.584 16.368 2.75 14.282 2.75 12c0-5.1 4.15-9.25 9.25-9.25zm0 18.5c-2.28 0-4.368-.834-5.982-2.207L19.043 6.018c1.373 1.614 2.207 3.7 2.207 5.982 0 5.1-4.15 9.25-9.25 9.25z" />
+  </Fragment>
+);
+
+export const IconEye = createIcon(
+  <Fragment>
+    <path d="M0 0h24v24H0z" id="bounds" opacity="0" />
+    <path d="M14.548 11.634c-1.207 0-2.188-.98-2.188-2.188 0-.664.302-1.25.77-1.653-.363-.097-.736-.165-1.13-.165-2.416 0-4.375 1.96-4.375 4.376S9.585 16.38 12 16.38c2.418 0 4.377-1.96 4.377-4.376 0-.4-.07-.78-.17-1.146-.402.47-.992.776-1.66.776z" />
+    <path d="M12 19.79c-7.228 0-10.12-6.724-10.24-7.01-.254-.466-.254-1.105.035-1.642C1.88 10.923 4.772 4.2 12 4.2s10.12 6.723 10.24 7.01c.254.465.254 1.104-.035 1.64-.085.216-2.977 6.94-10.205 6.94zm0-14c-6.154 0-8.668 5.787-8.772 6.033-.068.135-.068.208-.033.273.137.316 2.65 6.104 8.805 6.104 6.18 0 8.747-5.973 8.772-6.033.07-.136.07-.21.034-.274-.138-.316-2.652-6.103-8.806-6.103z" />
+  </Fragment>
+);
+
+export const IconCopy = createIcon(
+  <Fragment>
+    <path d="M0 0h24v24H0z" id="bounds" opacity="0" />
+    <path d="M11.47 14.53c.146.146.338.22.53.22s.384-.073.53-.22l5-5c.293-.293.293-.768 0-1.06s-.768-.294-1.06 0l-3.72 3.72V2c0-.414-.337-.75-.75-.75s-.75.336-.75.75v10.19L7.53 8.47c-.293-.293-.768-.293-1.06 0s-.294.768 0 1.06l5 5z" />
+    <path d="M21.25 13.25c-.414 0-.75.336-.75.75v5.652c0 .437-.355.792-.792.792H4.292c-.437 0-.792-.355-.792-.792V14c0-.414-.336-.75-.75-.75S2 13.586 2 14v5.652c0 1.264 1.028 2.292 2.292 2.292h15.416c1.264 0 2.292-1.028 2.292-2.292V14c0-.414-.336-.75-.75-.75z" />
+  </Fragment>
+);

packages/benchmarks/src/app/Layout.js

@@ -0,0 +1,68 @@
+import { colors } from './theme';
+import { element } from 'prop-types';
+import React, { Component } from 'react';
+import { StyleSheet, View } from 'react-native';
+
+export default class Layout extends Component {
+  static propTypes = {
+    actionPanel: element,
+    listPanel: element,
+    viewPanel: element
+  };
+
+  state = {
+    widescreen: false
+  };
+
+  render() {
+    const { viewPanel, actionPanel, listPanel } = this.props;
+    const { widescreen } = this.state;
+    return (
+      <View onLayout={this._handleLayout} style={[styles.root, widescreen && styles.row]}>
+        <View style={[widescreen ? styles.grow : styles.stackPanel, styles.layer]}>
+          {viewPanel}
+        </View>
+        <View style={styles.grow}>
+          <View style={[styles.grow, styles.layer]}>{listPanel}</View>
+          <View style={styles.divider} />
+          <View style={styles.layer}>{actionPanel}</View>
+        </View>
+      </View>
+    );
+  }
+
+  _handleLayout = ({ nativeEvent }) => {
+    const { layout } = nativeEvent;
+    const { width } = layout;
+    if (width >= 740) {
+      this.setState(() => ({ widescreen: true }));
+    } else {
+      this.setState(() => ({ widescreen: false }));
+    }
+  };
+}
+
+const styles = StyleSheet.create({
+  root: {
+    height: '100%'
+  },
+  row: {
+    flexDirection: 'row'
+  },
+  divider: {
+    height: 10,
+    backgroundColor: colors.fadedGray,
+    borderBottomWidth: 1,
+    borderTopWidth: 1,
+    borderColor: colors.mediumGray
+  },
+  grow: {
+    flex: 1
+  },
+  stackPanel: {
+    height: '33.33%'
+  },
+  layer: {
+    transform: [{ translateZ: '0' }]
+  }
+});

packages/benchmarks/src/app/ReportCard.js

@@ -0,0 +1,83 @@
+/* eslint-disable react/prop-types */
+import Text from './Text';
+import { StyleSheet, View } from 'react-native';
+import React, { Fragment } from 'react';
+
+const fmt = (time: number) => {
+  const i = Number(Math.round(time + 'e2') + 'e-2').toFixed(2);
+  return 10 / i > 1 ? `0${i}` : i;
+};
+
+class ReportCard extends React.PureComponent {
+  render() {
+    const {
+      benchmarkName,
+      libraryName,
+      sampleCount,
+      mean,
+      meanLayout,
+      meanScripting,
+      stdDev,
+      libraryVersion
+    } = this.props;
+
+    const sampleCountText = sampleCount != null ? `(${sampleCount})` : '';
+
+    return (
+      <View style={styles.root}>
+        <View style={styles.left}>
+          <Text numberOfLines={1} style={styles.bold}>
+            {`${libraryName}${libraryVersion ? '@' + libraryVersion : ''}`}
+          </Text>
+          <Text numberOfLines={1}>
+            {benchmarkName} {sampleCountText}
+          </Text>
+        </View>
+        <View style={styles.right}>
+          {mean ? (
+            <Fragment>
+              <Text style={[styles.bold, styles.monoFont]}>
+                {fmt(mean)} ±{fmt(stdDev)} ms
+              </Text>
+              <Text style={[styles.smallText, styles.monoFont]}>
+                (S/L) {fmt(meanScripting)} / {fmt(meanLayout)} ms
+              </Text>
+            </Fragment>
+          ) : (
+            <Text style={styles.bold}>In progress…</Text>
+          )}
+        </View>
+      </View>
+    );
+  }
+}
+
+const styles = StyleSheet.create({
+  root: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    padding: 5,
+    borderBottomWidth: 1,
+    borderBottomColor: '#eee'
+  },
+  bold: {
+    fontWeight: 'bold'
+  },
+  smallText: { fontSize: 12 },
+  monoFont: {
+    fontFamily: 'monospace'
+  },
+  centerText: {
+    display: 'flex',
+    alignItems: 'center'
+  },
+  left: {
+    width: '50%'
+  },
+  right: {
+    flex: 1,
+    alignItems: 'flex-end'
+  }
+});
+
+export default ReportCard;

packages/benchmarks/src/app/Text.js

@@ -0,0 +1,30 @@
+/* eslint-disable react/prop-types */
+
+import { bool } from 'prop-types';
+import React from 'react';
+import { StyleSheet, Text } from 'react-native';
+import { colors } from './theme';
+
+class AppText extends React.Component {
+  static displayName = '@app/Text';
+
+  static contextTypes = {
+    isInAParentText: bool
+  };
+
+  render() {
+    const { style, ...rest } = this.props;
+    const { isInAParentText } = this.context;
+    return <Text {...rest} style={[!isInAParentText && styles.baseText, style]} />;
+  }
+}
+
+const styles = StyleSheet.create({
+  baseText: {
+    color: colors.textBlack,
+    fontSize: '1rem',
+    lineHeight: '1.3125em'
+  }
+});
+
+export default AppText;

packages/benchmarks/src/app/theme.js

@@ -0,0 +1,101 @@
+import { canUseDOM } from 'fbjs/lib/ExecutionEnvironment';
+import { Dimensions, Platform } from 'react-native';
+
+const baseFontSize = 14;
+const baseUnit = 1.3125;
+
+const createPlatformLength = multiplier =>
+  Platform.select({ web: `${multiplier}rem`, default: multiplier * baseFontSize });
+
+/**
+ * Exported variables
+ */
+
+export const borderRadii = {
+  normal: Platform.select({ web: '0.35rem', default: 5 }),
+  infinite: '9999px'
+};
+
+export const breakpoints = {
+  small: 360,
+  medium: 600,
+  large: 800,
+  xLarge: 1100
+};
+
+/**
+ * Color palette
+ * DO NOT add new colors unless they are part of @design's color palette.
+ * DO NOT use colors that are not specified here.
+ * source: go/uicolors
+ */
+export const colors = {
+  // Primary
+  blue: '#1DA1F2',
+  purple: '#794BC4',
+  green: '#17BF63',
+  yellow: '#FFAD1F',
+  orange: '#F45D22',
+  red: '#E0245E',
+  // Text and interface grays
+  textBlack: '#14171A',
+  deepGray: '#657786',
+  mediumGray: '#AAB8C2',
+  lightGray: '#CCD6DD',
+  fadedGray: '#E6ECF0',
+  faintGray: '#F5F8FA',
+  white: '#FFF',
+  textBlue: '#1B95E0'
+};
+
+export const fontFamilies = {
+  normal: 'System',
+  japan: Platform.select({
+    web:
+      'Arial, "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", Osaka, "メイリオ", Meiryo, "ＭＳ Ｐゴシック", "MS PGothic", sans-serif',
+    default: 'System'
+  }),
+  rtl: Platform.select({ web: 'Tahoma, Arial, sans-serif', default: 'System' })
+};
+
+export const fontSizes = {
+  // font scale
+  small: createPlatformLength(0.85),
+  normal: createPlatformLength(1),
+  large: createPlatformLength(1.25),
+  xLarge: createPlatformLength(1.5),
+  jumbo: createPlatformLength(2)
+};
+
+export const lineHeight = Platform.select({ web: `${baseUnit}` });
+
+export const spaces = {
+  // This set of space variables should be used for margin, padding
+  micro: createPlatformLength(baseUnit * 0.125),
+  xxSmall: createPlatformLength(baseUnit * 0.25),
+  xSmall: createPlatformLength(baseUnit * 0.5),
+  small: createPlatformLength(baseUnit * 0.75),
+  medium: createPlatformLength(baseUnit),
+  large: createPlatformLength(baseUnit * 1.5),
+  xLarge: createPlatformLength(baseUnit * 2),
+  xxLarge: createPlatformLength(baseUnit * 2.5),
+  jumbo: createPlatformLength(baseUnit * 3)
+};
+
+// On web, change the root font-size at specific breakpoints to scale the UI
+// for larger viewports.
+if (Platform.OS === 'web' && canUseDOM) {
+  const { medium, large } = breakpoints;
+  const htmlElement = document.documentElement;
+  const setFontSize = width => {
+    const fontSize = width > medium ? (width > large ? '18px' : '17px') : '16px';
+    if (htmlElement) {
+      htmlElement.style.fontSize = fontSize;
+    }
+  };
+
+  setFontSize(Dimensions.get('window').width);
+  Dimensions.addEventListener('change', dimensions => {
+    setFontSize(dimensions.window.width);
+  });
+}

packages/benchmarks/src/cases/SierpinskiTriangle.js

@@ -0,0 +1,90 @@
+import { BenchmarkType } from 'react-component-benchmark';
+import { number, object } from 'prop-types';
+import React from 'react';
+import { interpolatePurples, interpolateBuPu, interpolateRdPu } from 'd3-scale-chromatic';
+
+const targetSize = 10;
+
+class SierpinskiTriangle extends React.Component {
+  static displayName = 'SierpinskiTriangle';
+
+  static benchmarkType = BenchmarkType.UPDATE;
+
+  static propTypes = {
+    components: object,
+    depth: number,
+    renderCount: number,
+    s: number,
+    x: number,
+    y: number
+  };
+
+  static defaultProps = {
+    depth: 0,
+    renderCount: 0
+  };
+
+  render() {
+    const { components, x, y, depth, renderCount } = this.props;
+    let { s } = this.props;
+    const { Dot } = components;
+
+    if (Dot) {
+      if (s <= targetSize) {
+        let fn;
+        switch (depth) {
+          case 1:
+            fn = interpolatePurples;
+            break;
+          case 2:
+            fn = interpolateBuPu;
+            break;
+          case 3:
+          default:
+            fn = interpolateRdPu;
+        }
+
+        // introduce randomness to ensure that repeated runs don't produce the same colors
+        const color = fn(renderCount * Math.random() / 20);
+        return (
+          <Dot color={color} size={targetSize} x={x - targetSize / 2} y={y - targetSize / 2} />
+        );
+      }
+
+      s /= 2;
+
+      return (
+        <React.Fragment>
+          <SierpinskiTriangle
+            components={components}
+            depth={1}
+            renderCount={renderCount}
+            s={s}
+            x={x}
+            y={y - s / 2}
+          />
+          <SierpinskiTriangle
+            components={components}
+            depth={2}
+            renderCount={renderCount}
+            s={s}
+            x={x - s}
+            y={y + s / 2}
+          />
+          <SierpinskiTriangle
+            components={components}
+            depth={3}
+            renderCount={renderCount}
+            s={s}
+            x={x + s}
+            y={y + s / 2}
+          />
+        </React.Fragment>
+      );
+    } else {
+      return <span style={{ color: 'white' }}>No implementation available</span>;
+    }
+  }
+}
+
+export default SierpinskiTriangle;

packages/benchmarks/src/cases/Tree.js

@@ -0,0 +1,45 @@
+import { BenchmarkType } from 'react-component-benchmark';
+import { number, object } from 'prop-types';
+import React, { Component } from 'react';
+
+class Tree extends Component {
+  static displayName = 'Tree';
+
+  static benchmarkType = BenchmarkType.MOUNT;
+
+  static propTypes = {
+    breadth: number.isRequired,
+    components: object,
+    depth: number.isRequired,
+    id: number.isRequired,
+    wrap: number.isRequired
+  };
+
+  render() {
+    const { breadth, components, depth, id, wrap } = this.props;
+    const { Box } = components;
+
+    let result = (
+      <Box color={id % 3} layout={depth % 2 === 0 ? 'column' : 'row'} outer>
+        {depth === 0 && <Box color={id % 3 + 3} fixed />}
+        {depth !== 0 &&
+          Array.from({ length: breadth }).map((el, i) => (
+            <Tree
+              breadth={breadth}
+              components={components}
+              depth={depth - 1}
+              id={i}
+              key={i}
+              wrap={wrap}
+            />
+          ))}
+      </Box>
+    );
+    for (let i = 0; i < wrap; i++) {
+      result = <Box>{result}</Box>;
+    }
+    return result;
+  }
+}
+
+export default Tree;

packages/benchmarks/src/impl.js

@@ -0,0 +1,36 @@
+import { type Component } from 'react';
+import packageJson from '../package.json';
+
+const context = require.context('./implementations/', true, /index\.js$/);
+const { dependencies } = packageJson;
+
+type ComponentsType = {
+  Box: Component,
+  Dot: Component,
+  Provider: Component,
+  View: Component
+};
+
+type ImplementationType = {
+  components: ComponentsType,
+  name: string,
+  version: string
+};
+
+const toImplementations = (context: Object): Array<ImplementationType> =>
+  context.keys().map(path => {
+    const components = context(path).default;
+    const name = path.split('/')[1];
+    const version = dependencies[name] || '';
+    return { components, name, version };
+  });
+
+const toObject = (impls: Array<ImplementationType>): Object =>
+  impls.reduce((acc, impl) => {
+    acc[impl.name] = impl;
+    return acc;
+  }, {});
+
+const map = toObject(toImplementations(context));
+
+export default map;

packages/benchmarks/src/implementations/aphrodite/Box.js

@@ -1,6 +1,6 @@
 /* eslint-disable react/prop-types */
 import React from 'react';
-import View from '../View/aphrodite';
+import View from './View';
 import { StyleSheet } from 'aphrodite';
 
 const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
@@ -17,32 +17,33 @@ const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other
 
 const styles = StyleSheet.create({
   outer: {
+    alignSelf: 'flex-start',
     padding: 4
   },
   row: {
     flexDirection: 'row'
   },
   color0: {
-    backgroundColor: '#222'
+    backgroundColor: '#14171A'
   },
   color1: {
-    backgroundColor: '#666'
+    backgroundColor: '#AAB8C2'
   },
   color2: {
-    backgroundColor: '#999'
+    backgroundColor: '#E6ECF0'
   },
   color3: {
-    backgroundColor: 'blue'
+    backgroundColor: '#FFAD1F'
   },
   color4: {
-    backgroundColor: 'orange'
+    backgroundColor: '#F45D22'
   },
   color5: {
-    backgroundColor: 'red'
+    backgroundColor: '#E0245E'
   },
   fixed: {
-    width: 20,
-    height: 20
+    width: 6,
+    height: 6
   }
 });
 

packages/benchmarks/src/implementations/aphrodite/Provider.js

@@ -0,0 +1,2 @@
+import View from './View';
+export default View;

packages/benchmarks/src/implementations/aphrodite/index.js

@@ -0,0 +1,9 @@
+import Box from './Box';
+import Provider from './Provider';
+import View from './View';
+
+export default {
+  Box,
+  Provider,
+  View
+};

packages/benchmarks/src/implementations/css-modules/Box.js

@@ -1,8 +1,8 @@
 /* eslint-disable react/prop-types */
 import classnames from 'classnames';
 import React from 'react';
-import View from '../View/css-modules';
-import styles from './styles.css';
+import View from './View';
+import styles from './box-styles.css';
 
 const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
   <View

packages/benchmarks/src/implementations/css-modules/Provider.js

@@ -0,0 +1,2 @@
+import View from './View';
+export default View;

packages/benchmarks/src/implementations/css-modules/View.js

@@ -1,7 +1,7 @@
 /* eslint-disable react/prop-types */
 import classnames from 'classnames';
 import React from 'react';
-import styles from './styles.css';
+import styles from './view-styles.css';
 
 class View extends React.Component {
   render() {

packages/benchmarks/src/implementations/css-modules/box-styles.css

@@ -0,0 +1,37 @@
+.outer {
+  align-self: flex-start;
+  padding: 4px;
+}
+
+.row {
+  flex-direction: row;
+}
+
+.color0 {
+  background-color: #14171A;
+}
+
+.color1 {
+  background-color: #AAB8C2;
+}
+
+.color2 {
+  background-color: #E6ECF0;
+}
+
+.color3 {
+  background-color: #FFAD1F;
+}
+
+.color4 {
+  background-color: #F45D22;
+}
+
+.color5 {
+  background-color: #E0245E;
+}
+
+.fixed {
+  width: 6px;
+  height: 6px;
+}

packages/benchmarks/src/implementations/css-modules/index.js

@@ -0,0 +1,9 @@
+import Box from './Box';
+import Provider from './Provider';
+import View from './View';
+
+export default {
+  Box,
+  Provider,
+  View
+};

packages/benchmarks/src/implementations/emotion/Box.js

@@ -1,6 +1,6 @@
 /* eslint-disable react/prop-types */
 import React from 'react';
-import View from '../View/emotion';
+import View from './View';
 
 const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
   <View
@@ -16,32 +16,33 @@ const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other
 
 const styles = {
   outer: {
+    alignSelf: 'flex-start',
     padding: 4
   },
   row: {
     flexDirection: 'row'
   },
   color0: {
-    backgroundColor: '#222'
+    backgroundColor: '#14171A'
   },
   color1: {
-    backgroundColor: '#666'
+    backgroundColor: '#AAB8C2'
   },
   color2: {
-    backgroundColor: '#999'
+    backgroundColor: '#E6ECF0'
   },
   color3: {
-    backgroundColor: 'blue'
+    backgroundColor: '#FFAD1F'
   },
   color4: {
-    backgroundColor: 'orange'
+    backgroundColor: '#F45D22'
   },
   color5: {
-    backgroundColor: 'red'
+    backgroundColor: '#E0245E'
   },
   fixed: {
-    width: 20,
-    height: 20
+    width: 6,
+    height: 6
   }
 };
 

packages/benchmarks/src/implementations/emotion/Dot.js

@@ -0,0 +1,33 @@
+/* eslint-disable react/prop-types */
+import React from 'react';
+import { css } from 'emotion';
+
+const Dot = ({ size, x, y, children, color }) => (
+  <div
+    className={css(styles.root, {
+      borderBottomColor: color,
+      borderRightWidth: `${size / 2}px`,
+      borderBottomWidth: `${size / 2}px`,
+      borderLeftWidth: `${size / 2}px`,
+      marginLeft: `${x}px`,
+      marginTop: `${y}px`
+    })}
+  >
+    {children}
+  </div>
+);
+
+const styles = {
+  root: {
+    position: 'absolute',
+    cursor: 'pointer',
+    width: 0,
+    height: 0,
+    borderColor: 'transparent',
+    borderStyle: 'solid',
+    borderTopWidth: 0,
+    transform: 'translate(50%, 50%)'
+  }
+};
+
+export default Dot;

packages/benchmarks/src/implementations/emotion/Provider.js

@@ -0,0 +1,2 @@
+import View from './View';
+export default View;

packages/benchmarks/src/implementations/emotion/View.js

@@ -5,7 +5,7 @@ import React from 'react';
 class View extends React.Component {
   render() {
     const { style, ...other } = this.props;
-    return <div {...other} className={css([viewStyle, ...style])} />;
+    return <div {...other} className={css(viewStyle, ...style)} />;
   }
 }
 

packages/benchmarks/src/implementations/emotion/index.js

@@ -0,0 +1,11 @@
+import Box from './Box';
+import Dot from './Dot';
+import Provider from './Provider';
+import View from './View';
+
+export default {
+  Box,
+  Dot,
+  Provider,
+  View
+};

packages/benchmarks/src/implementations/glamor/Box.js

@@ -1,6 +1,6 @@
 /* eslint-disable react/prop-types */
 import React from 'react';
-import View from '../View/glamor';
+import View from './View';
 
 const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
   <View
@@ -16,32 +16,33 @@ const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other
 
 const styles = {
   outer: {
+    alignSelf: 'flex-start',
     padding: 4
   },
   row: {
     flexDirection: 'row'
   },
   color0: {
-    backgroundColor: '#222'
+    backgroundColor: '#14171A'
   },
   color1: {
-    backgroundColor: '#666'
+    backgroundColor: '#AAB8C2'
   },
   color2: {
-    backgroundColor: '#999'
+    backgroundColor: '#E6ECF0'
   },
   color3: {
-    backgroundColor: 'blue'
+    backgroundColor: '#FFAD1F'
   },
   color4: {
-    backgroundColor: 'orange'
+    backgroundColor: '#F45D22'
   },
   color5: {
-    backgroundColor: 'red'
+    backgroundColor: '#E0245E'
   },
   fixed: {
-    width: 20,
-    height: 20
+    width: 6,
+    height: 6
   }
 };
 

packages/benchmarks/src/implementations/glamor/Dot.js

@@ -0,0 +1,33 @@
+/* eslint-disable react/prop-types */
+import React from 'react';
+import { css } from 'glamor';
+
+const Dot = ({ size, x, y, children, color }) => (
+  <div
+    className={css(styles.root, {
+      borderBottomColor: color,
+      borderRightWidth: `${size / 2}px`,
+      borderBottomWidth: `${size / 2}px`,
+      borderLeftWidth: `${size / 2}px`,
+      marginLeft: `${x}px`,
+      marginTop: `${y}px`
+    })}
+  >
+    {children}
+  </div>
+);
+
+const styles = {
+  root: {
+    position: 'absolute',
+    cursor: 'pointer',
+    width: 0,
+    height: 0,
+    borderColor: 'transparent',
+    borderStyle: 'solid',
+    borderTopWidth: 0,
+    transform: 'translate(50%, 50%)'
+  }
+};
+
+export default Dot;

packages/benchmarks/src/implementations/glamor/Provider.js

@@ -0,0 +1,2 @@
+import View from './View';
+export default View;

packages/benchmarks/src/implementations/glamor/index.js

@@ -0,0 +1,11 @@
+import Box from './Box';
+import Dot from './Dot';
+import Provider from './Provider';
+import View from './View';
+
+export default {
+  Box,
+  Dot,
+  Provider,
+  View
+};

packages/benchmarks/src/implementations/inline-styles/Box.js

@@ -0,0 +1,49 @@
+/* eslint-disable react/prop-types */
+import React from 'react';
+import View from './View';
+
+const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
+  <View
+    {...other}
+    style={{
+      ...styles[`color${color}`],
+      ...(fixed && styles.fixed),
+      ...(layout === 'row' && styles.row),
+      ...(outer && styles.outer)
+    }}
+  />
+);
+
+const styles = {
+  outer: {
+    alignSelf: 'flex-start',
+    padding: 4
+  },
+  row: {
+    flexDirection: 'row'
+  },
+  color0: {
+    backgroundColor: '#14171A'
+  },
+  color1: {
+    backgroundColor: '#AAB8C2'
+  },
+  color2: {
+    backgroundColor: '#E6ECF0'
+  },
+  color3: {
+    backgroundColor: '#FFAD1F'
+  },
+  color4: {
+    backgroundColor: '#F45D22'
+  },
+  color5: {
+    backgroundColor: '#E0245E'
+  },
+  fixed: {
+    width: 6,
+    height: 6
+  }
+};
+
+export default Box;

packages/benchmarks/src/implementations/inline-styles/Dot.js

@@ -0,0 +1,35 @@
+/* eslint-disable react/prop-types */
+import React from 'react';
+
+const Dot = ({ size, x, y, children, color }) => (
+  <div
+    style={{
+      ...styles.root,
+      ...{
+        borderBottomColor: color,
+        borderRightWidth: `${size / 2}px`,
+        borderBottomWidth: `${size / 2}px`,
+        borderLeftWidth: `${size / 2}px`,
+        marginLeft: `${x}px`,
+        marginTop: `${y}px`
+      }
+    }}
+  >
+    {children}
+  </div>
+);
+
+const styles = {
+  root: {
+    position: 'absolute',
+    cursor: 'pointer',
+    width: 0,
+    height: 0,
+    borderColor: 'transparent',
+    borderStyle: 'solid',
+    borderTopWidth: 0,
+    transform: 'translate(50%, 50%)'
+  }
+};
+
+export default Dot;

packages/benchmarks/src/implementations/inline-styles/Provider.js

@@ -0,0 +1,2 @@
+import View from './View';
+export default View;

packages/benchmarks/src/implementations/inline-styles/View.js

@@ -0,0 +1,36 @@
+/* eslint-disable react/prop-types */
+import React from 'react';
+
+const compose = (s1, s2) => {
+  if (s1 && s2) {
+    return { ...s1, ...s2 };
+  } else {
+    return s1 || s2;
+  }
+};
+
+class View extends React.Component {
+  render() {
+    const { style, ...other } = this.props;
+    return <div {...other} style={compose(viewStyle, style)} />;
+  }
+}
+
+const viewStyle = {
+  alignItems: 'stretch',
+  borderWidth: 0,
+  borderStyle: 'solid',
+  boxSizing: 'border-box',
+  display: 'flex',
+  flexBasis: 'auto',
+  flexDirection: 'column',
+  flexShrink: 0,
+  margin: 0,
+  padding: 0,
+  position: 'relative',
+  // fix flexbox bugs
+  minHeight: 0,
+  minWidth: 0
+};
+
+export default View;

packages/benchmarks/src/implementations/inline-styles/index.js

@@ -0,0 +1,11 @@
+import Box from './Box';
+import Dot from './Dot';
+import Provider from './Provider';
+import View from './View';
+
+export default {
+  Box,
+  Dot,
+  Provider,
+  View
+};

packages/benchmarks/src/implementations/radium/Box.js

@@ -1,7 +1,7 @@
 /* eslint-disable react/prop-types */
 import Radium from 'radium';
 import React from 'react';
-import View from '../View/radium';
+import View from './View';
 
 const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other }) => (
   <View
@@ -17,32 +17,33 @@ const Box = ({ color, fixed = false, layout = 'column', outer = false, ...other
 
 const styles = {
   outer: {
+    alignSelf: 'flex-start',
     padding: 4
   },
   row: {
     flexDirection: 'row'
   },
   color0: {
-    backgroundColor: '#222'
+    backgroundColor: '#14171A'
   },
   color1: {
-    backgroundColor: '#666'
+    backgroundColor: '#AAB8C2'
   },
   color2: {
-    backgroundColor: '#999'
+    backgroundColor: '#E6ECF0'
   },
   color3: {
-    backgroundColor: 'blue'
+    backgroundColor: '#FFAD1F'
   },
   color4: {
-    backgroundColor: 'orange'
+    backgroundColor: '#F45D22'
   },
   color5: {
-    backgroundColor: 'red'
+    backgroundColor: '#E0245E'
   },
   fixed: {
-    width: 20,
-    height: 20
+    width: 6,
+    height: 6
   }
 };
 

packages/benchmarks/src/implementations/radium/Dot.js

@@ -0,0 +1,36 @@
+/* eslint-disable react/prop-types */
+import Radium from 'radium';
+import React from 'react';
+
+const Dot = ({ size, x, y, children, color }) => (
+  <div
+    style={[
+      styles.root,
+      {
+        borderBottomColor: color,
+        borderRightWidth: `${size / 2}px`,
+        borderBottomWidth: `${size / 2}px`,
+        borderLeftWidth: `${size / 2}px`,
+        marginLeft: `${x}px`,
+        marginTop: `${y}px`
+      }
+    ]}
+  >
+    {children}
+  </div>
+);
+
+const styles = {
+  root: {
+    position: 'absolute',
+    cursor: 'pointer',
+    width: 0,
+    height: 0,
+    borderColor: 'transparent',
+    borderStyle: 'solid',
+    borderTopWidth: 0,
+    transform: 'translate(50%, 50%)'
+  }
+};
+
+export default Radium(Dot);

packages/benchmarks/src/implementations/radium/Provider.js

@@ -0,0 +1,2 @@
+import View from './View';
+export default View;