Temporarily comment out website deployment to allow 0.48.4 to go out

Summary:
React Native v0.48.0 shipped `WebSocketModule` support with `BlobModule` as dependency. But `BlobModule` is not mocked in jest which will cause render tests failed.

Reference implantation: [BlobModule.java](https://github.com/facebook/react-native/blob/ed903099b42259958d8a6eb3af1a6460c1bc8b2c/ReactAndroid/src/main/java/com/facebook/react/modules/blob/BlobModule.java)

Related PR: #11417
Related issue: #15810

Passed CI tests.
Need render a component in jest with WebSocketModule as dependency.
Closes https://github.com/facebook/react-native/pull/15843

Differential Revision: D5783263

Pulled By: shergin

fbshipit-source-id: 2386692f4a644796da2fd66b3135da9f5911663e

.eslintignore

@@ -3,4 +3,13 @@
 **/staticBundle.js
 **/main.js
 Libraries/vendor/**/*
-packager/src/worker-farm/**/*
+Libraries/Renderer/*
+website/node_modules
+pr-inactivity-bookmarklet.js
+question-bookmarklet.js
+flow/
+website/core/metadata.js
+website/core/metadata-blog.js
+website/src/react-native/docs/
+website/src/react-native/blog/
+danger/

.eslintrc

@@ -1,4 +1,6 @@
 {
+  "root": true,
+
   "parser": "babel-eslint",
 
   "ecmaFeatures": {
@@ -11,6 +13,8 @@
   },
 
   "plugins": [
+    "flowtype",
+    "prettier",
     "react"
   ],
 
@@ -49,33 +53,17 @@
     "setTimeout": false,
     "window": false,
     "XMLHttpRequest": false,
-    "pit": false,
-
-    // Flow global types.
-    "ReactComponent": false,
-    "ReactClass": false,
-    "ReactElement": false,
-    "ReactPropsCheckType": false,
-    "ReactPropsChainableTypeChecker": false,
-    "ReactPropTypes": false,
-    "SyntheticEvent": false,
-    "$Either": false,
-    "$All": false,
-    "$ArrayBufferView": false,
-    "$Tuple": false,
-    "$Supertype": false,
-    "$Subtype": false,
-    "$Shape": false,
-    "$Diff": false,
-    "$Keys": false,
-    "$Enum": false,
-    "$Exports": false,
-    "$FlowIssue": false,
-    "$FlowFixMe": false,
-    "$FixMe": false
+    "pit": false
   },
 
   "rules": {
+  // Flow Plugin
+  // The following rules are made available via `eslint-plugin-flowtype`
+    "flowtype/define-flow-type": 1,
+    "flowtype/use-flow-type": 1,
+
+  // General
+
     "comma-dangle": 0,               // disallow trailing commas in object literals
     "no-cond-assign": 1,             // disallow assignment in conditional expressions
     "no-console": 0,                 // disallow use of console (off by default in the node environment)
@@ -176,6 +164,10 @@
     "no-restricted-modules": 1,      // restrict usage of specified node modules (off by default)
     "no-sync": 0,                    // disallow use of synchronous methods (off by default)
 
+  // Prettier Plugin
+  // https://github.com/prettier/eslint-plugin-prettier
+    "prettier/prettier": [2, "fb", "@format"],
+
   // Stylistic Issues
   // These rules are purely matters of style and are quite subjective.
 
@@ -228,6 +220,7 @@
 
     "react/display-name": 0,
     "react/jsx-boolean-value": 0,
+    "react/jsx-no-comment-textnodes": 1,
     "react/jsx-no-duplicate-props": 2,
     "react/jsx-no-undef": 1,
     "react/jsx-sort-props": 0,
@@ -241,6 +234,6 @@
     "react/prop-types": 0,
     "react/react-in-jsx-scope": 1,
     "react/self-closing-comp": 1,
-    "react/wrap-multilines": 0,
+    "react/wrap-multilines": 0
   }
 }

.flowconfig

@@ -8,6 +8,9 @@
 ; Ignore the website subdir
 <PROJECT_ROOT>/website/.*
 
+; Ignore the Dangerfile
+<PROJECT_ROOT>/danger/dangerfile.js
+
 ; Ignore "BUCK" generated dirs
 <PROJECT_ROOT>/\.buckd/
 
@@ -19,6 +22,9 @@
 ; "node_modules/react-native" but in the source repo it is in the root
 .*/Libraries/react-native/React.js
 
+; Ignore polyfills
+.*/Libraries/polyfills/.*
+
 [include]
 
 [libs]
@@ -38,12 +44,12 @@ suppress_type=$FlowIssue
 suppress_type=$FlowFixMe
 suppress_type=$FixMe
 
-suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(4[0-7]\\|[1-3][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native_oss[a-z,_]*\\)?)\\)
-suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(4[0-7]\\|[1-3][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native_oss[a-z,_]*\\)?)\\)?:? #[0-9]+
+suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(>=0\\.\\(5[0-1]\\|[1-4][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native_oss[a-z,_]*\\)?)\\)
+suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(>=0\\.\\(5[0-1]\\|[1-4][0-9]\\|[0-9]\\).[0-9]\\)? *\\(site=[a-z,_]*react_native_oss[a-z,_]*\\)?)\\)?:? #[0-9]+
 suppress_comment=\\(.\\|\n\\)*\\$FlowFixedInNextDeploy
 suppress_comment=\\(.\\|\n\\)*\\$FlowExpectedError
 
 unsafe.enable_getters_and_setters=true
 
 [version]
-^0.47.0
+^0.51.0

.github/CODEOWNERS

@@ -0,0 +1,20 @@
+docs/* @facebook/react-native
+blog/* @facebook/react-native
+Libraries/Animated/* @janicduplessis
+Libraries/NativeAnimation/* @janicduplessis
+Libraries/Image/* @shergin
+Libraries/Text/* @shergin
+React/Base/* @shergin @javache
+React/Views/* @shergin @javache
+React/Modules/* @shergin @javache
+React/CxxBridge/* @javache
+React/Executors/* @javache
+ReactAndroid/src/main/java/com/facebook/react/animated/* @janicduplessis
+ReactCommon/* @javache
+website/* @facebook/react-native
+website/showcase.json @facebook/react-native
+package.json @facebook/react-native
+website/package.json @facebook/react-native
+local-cli/core/* @grabbou @kureev
+local-cli/link/* @grabbou @kureev
+local-cli/unlink/* @grabbou @kureev

.github/ISSUE_TEMPLATE.md

@@ -1,44 +1,124 @@
-Please read the following carefully. Issues that do not follow these guidelines will be closed.
+<!--
+  PLEASE DON'T DELETE THIS TEMPLATE UNTIL YOU HAVE READ THE FIRST SECTION.
+-->
 
-We use GitHub Issues exclusively for tracking bugs in React Native.
+### Is this a bug report?
 
-- Have a question? Ask on Stack Overflow: http://stackoverflow.com/questions/tagged/react-native
-- Have a feature request? Submit it here: https://react-native.canny.io/feature-requests
-- Want to know more about future plans? Check out the roadmap: https://github.com/facebook/react-native/wiki/Roadmap
+(write your answer here)
 
-## Reporting Bugs
+<!--
+  If you answered "Yes":
 
-Report a single bug per issue.
+    We expect that it will take you about 30 minutes to produce a high-quality bug report.
+    While this may seem like a lot, putting care into issues helps us fix them faster.
+    For bug reports, it is REQUIRED to fill the rest of this template, or the issue will be closed.
 
-### Reproducing bugs
+  If you answered "No":
 
-- Always provide reproduction steps.
-- Use Snack. Try to reproduce your bug on https://snack.expo.io/ first of all.
-  If the bug cannot be reproduced using Snack, verify that the issue can be reproduced locally by targeting the latest release candidate. Ideally, check if the issue is present in master as well.
-- Do not forget to include sample code that reproduces the issue.
+    We use GitHub Issues exclusively for tracking bugs in React Native. If you're looking for help,
+    check out the How to Get In Touch section of the following guide:
+    https://facebook.github.io/react-native/docs/contributing.html#how-to-get-in-touch
 
-Issues that do not describe a bug or do not follow the template will be closed.
-
---- Delete everything above this line ---
-
-### Description
-
-Explain what you did, what you expected to happen, and what actually happens.
-
-### Reproduction Steps and Sample Code
-
-List all the steps required to reproduce the issue you're reporting. These steps should be clear and concise.
-
-  ***An example of your code or a repro using Snack is REQUIRED***
+  Now scroll below!
+-->
 
 
-### Solution
+### Have you read the Bugs section of the How to Contribute guide?
 
-What needs to be done to address this issue? Ideally, provide a pull request with a fix.
+(Write your answer here.)
 
-### Additional Information
+<!--
+  Please read through the bug reporting guidelines thoroughly:
+  https://facebook.github.io/react-native/docs/contributing.html#bugs
+-->
 
-* React Native version: [FILL THIS OUT: Be specific, filling out "latest" here is not enough.]
-* Platform: [FILL THIS OUT: iOS, Android, or both?]
-* Development Operating System: [FILL THIS OUT: Are you developing on macOS, Linux, or Windows?]
-* Dev tools: [FILL THIS OUT: Xcode or Android Studio version, iOS or Android SDK version, if applicable]
+### Environment
+
+<!--
+  Please fill in all the relevant fields by running these commands in terminal.
+-->
+
+1. `react-native -v`:
+2. `node -v`:
+3. `npm -v`:
+4. `yarn --version`<!-- (if you use Yarn) -->:
+
+Then, specify:
+
+<!-- (What platform are you building for? Choose any from iOS, Android, AppleTV.) -->
+- Target Platform:
+
+<!-- Which operating system are you using? Specify macOS, Windows, or Linux, along with specific release versions -->
+- Development Operating System:
+
+<!-- Include any additional relevant information. Are you using Xcode or Android Studio to build native code? Is the issue specific to a particular iOS or Android SDK? -->
+- Build tools:
+
+### Steps to Reproduce
+
+<!--
+  How would you describe your issue to someone who doesn’t know you or your project?
+  Try to write a sequence of steps that anybody can repeat to see the issue.
+  Be specific! If the bug cannot be reproduced, your issue may be closed.
+-->
+
+(Write your steps here:)
+
+1.
+2.
+3.
+
+### Expected Behavior
+
+<!--
+  How did you expect your project to behave?
+  It’s fine if you’re not sure your understanding is correct.
+  Just write down what you thought would happen.
+-->
+
+(Write what you thought would happen.)
+
+### Actual Behavior
+
+<!--
+  Did something go wrong?
+  Is something broken, or not behaving as you expected?
+  Describe this section in detail, and attach screenshots if possible.
+  Don't just say "it doesn't work"!
+-->
+
+(Write what happened. Add screenshots!)
+
+### Reproducible Demo
+
+<!--
+  Please share a project that reproduces the issue.
+  There are two ways to do it:
+
+    * Create a new app using https://snack.expo.io/ and try to reproduce the issue in it.
+      This is useful if you roughly know where the problem is, or can’t share the real code.
+
+    * Or, copy your app and remove things until you’re left with the minimal reproducible demo.
+      This is useful for finding the root cause. You may then optionally create a Snack.
+
+  This is a good guide to creating bug demos: https://stackoverflow.com/help/mcve
+  Once you’re done, copy and paste the link to the Snack or a public GitHub repository below:
+-->
+
+(Paste the link to an example project and exact instructions to reproduce the issue.)
+
+<!--
+  What happens if you skip this step?
+
+  Someone will read your bug report, and maybe will be able to help you,
+  but it’s unlikely that it will get much attention from the team. Eventually,
+  the issue will likely get closed in favor of issues that have reproducible demos.
+
+  Please remember that:
+
+    * Issues without reproducible demos have a very low priority.
+    * The person fixing the bug would have to do that anyway. Please be respectful of their time.
+    * You might figure out the issues yourself as you work on extracting it.
+
+  Thanks for helping us help you!
+-->

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,32 +1,9 @@
-Thanks for submitting a PR! Please read these instructions carefully:
+<!--
+Thank you for sending the PR!
 
-- [ ] Explain the **motivation** for making this change.
-- [ ] Provide a **test plan** demonstrating that the code is solid.
-- [ ] Match the **code formatting** of the rest of the codebase.
-- [ ] Target the `master` branch, NOT a "stable" branch.
+If you changed any code, please provide us with clear instructions on how you verified your changes work. In other words, a test plan is *required*. Bonus points for screenshots and videos!
 
-## Motivation (required)
+Please read the Contribution Guidelines at https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md to learn more about contributing to React Native.
 
-What existing problem does the pull request solve?
-
-## Test Plan (required)
-
-A good test plan has the exact commands you ran and their output, provides screenshots or videos if the pull request changes UI or updates the website. See [What is a Test Plan?][1] to learn more.  
-
-If you have added code that should be tested, add tests.
-
-## Next Steps
-
-Sign the [CLA][2], if you haven't already.
-
-Small pull requests are much easier to review and more likely to get merged. Make sure the PR does only one thing, otherwise please split it.
-
-Make sure all **tests pass** on both [Travis][3] and [Circle CI][4]. PRs that break tests are unlikely to be merged.
-
-For more info, see the ["Pull Requests"][5] section of our "Contributing" guidelines.
-
-[1]: https://medium.com/@martinkonicek/what-is-a-test-plan-8bfc840ec171#.y9lcuqqi9
-[2]: https://code.facebook.com/cla
-[3]: https://travis-ci.org/facebook/react-native
-[4]: http://circleci.com/gh/facebook/react-native
-[5]: https://github.com/facebook/react-native/blob/master/CONTRIBUTING.md#pull-requests
+Happy contributing!
+-->

.gitignore

@@ -47,6 +47,7 @@ local.properties
 node_modules
 *.log
 .nvm
+/danger/node_modules/
 
 # OS X
 .DS_Store

.travis.yml

@@ -3,25 +3,21 @@ language: objective-c
 osx_image: xcode8.3
 
 install:
-  - mkdir -p /Users/travis/build/facebook/.nvm
-  - export NVM_DIR="/Users/travis/build/facebook/.nvm"
-  - brew install nvm
-  - source $(brew --prefix nvm)/nvm.sh
-  # TODO npm 2 started stalling on Travis, t11852928
-
-  # Use node 6 because that is what runs on land-blocking tests
-  - nvm install 6
+  - nvm install 7
   - rm -Rf "${TMPDIR}/jest_preprocess_cache"
-  - wget https://github.com/yarnpkg/yarn/releases/download/v0.16.0/yarn-0.16.0.js
-  - export yarn="node $(pwd)/yarn-0.16.0.js"
-  - $yarn install
+  - brew install yarn --ignore-dependencies
+  - brew install watchman
+  - yarn install
 
 script:
-  - if [[ "$TEST_TYPE" = objc-ios ]]; then travis_retry travis_wait ./scripts/objc-test-ios.sh test; fi
-  - if [[ "$TEST_TYPE" = objc-tvos ]]; then travis_retry travis_wait ./scripts/objc-test-tvos.sh; fi
+  - if [[ "$TEST_TYPE" = objc-ios ]]; then travis_retry travis_wait 30 ./scripts/objc-test-ios.sh test; fi
+  - if [[ "$TEST_TYPE" = objc-tvos ]]; then travis_retry travis_wait 30 ./scripts/objc-test-tvos.sh; fi
   - if [[ "$TEST_TYPE" = e2e-objc ]]; then node ./scripts/run-ci-e2e-tests.js --ios --js --retries 3; fi
-  - if [[ ( "$TEST_TYPE" = podspecs ) && ( "$TRAVIS_PULL_REQUEST" = "false" ) ]]; then gem install cocoapods && ./scripts/process-podspecs.sh; fi
+  - if [[ ( "$TEST_TYPE" = podspecs ) && ( "$TRAVIS_PULL_REQUEST" = "false" ) ]]; then gem install cocoapods && travis_wait 30 ./scripts/process-podspecs.sh; fi
 
+cache:
+  - cocoapods
+  - yarn
 
 matrix:
   - fast_finish: true # Fail the whole build as soon as one test type fails. Should help with Travis capacity issues (very long queues).
@@ -41,7 +37,6 @@ branches:
 notifications:
   email:
     recipients:
-      - mkonicek@fb.com
       - douglowder@mac.com # Doug Lowder built and maintains Apple TV specific code and wants to be notified about tvOS failures.
       - eloy@artsy.net # Eloy Durán maintains the podspecs test and wants to be notified about failures.
     on_failure: change

CONTRIBUTING.md

@@ -1,44 +1,145 @@
 # Contributing to React Native
 
-React Native is one of Facebook's first open source projects that is both under very active development and is also being used to ship code to everybody on [facebook.com](https://facebook.com). We're still working out the kinks to make contributing to this project as easy and transparent as possible, but we're not quite there yet. Hopefully this document makes the process for contributing clear and preempts some questions you may have.
+<!-- generated_contributing_start -->
+React Native is one of Facebook's first open source projects that is both under very active development and is also being used to ship code to everybody using Facebook's mobile apps. If you're interested in contributing to React Native, hopefully this document makes the process for contributing clear.
 
-## Our Development Process
+Core contributors to React Native meet monthly and post their meeting notes on the [React Native blog](https://facebook.github.io/react-native/blog). You can also find ad hoc discussions in the [React Native Core Contributors](https://www.facebook.com/groups/reactnativeoss/) Facebook group.
 
-Some of the core team will be working directly on GitHub. These changes will be public from the beginning. Other changesets will come via a bridge with Facebook's internal source control. This is a necessity as it allows engineers at Facebook outside of the core team to move fast and contribute from an environment they are comfortable in.
+## [Code of Conduct](https://code.facebook.com/codeofconduct)
 
-### `master` is unsafe
+Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please read [the full text](https://code.facebook.com/codeofconduct) so that you can understand what actions will and will not be tolerated.
 
-We will do our best to keep `master` in good shape, with tests passing at all times. But in order to move fast, we will make API changes that your application might not be compatible with. We will do our best to communicate these changes and version appropriately so you can lock into a specific version if need be.
+## How to contribute
 
-### Pull Requests
+There are many ways to contribute to React Native, and many of them do not involve writing any code. Here's a few ideas to get started:
 
-The core team will be monitoring for pull requests. When we get one, we'll run some Facebook-specific integration tests on it first. From here, we'll need to get another person to sign off on the changes and then merge the pull request. For API changes we may need to fix internal uses, which could cause some delay. We'll do our best to provide updates and feedback throughout the process.
+* Simply start using React Native. Go through the [Getting Started](http://facebook.github.io/react-native/docs/getting-started.html) guide. Does everything work as expected? If not, we're always looking for improvements. Let us know by [opening an issue](http://facebook.github.io/react-native/docs/contributing.html#reporting-new-issues).
+* Look through the [open issues](https://github.com/facebook/react-native/issues). Provide workarounds, ask for clarification, or suggest labels. Help [triage issues](http://facebook.github.io/react-native/docs/contributing.html#triaging-issues-and-pull-requests).
+* If you find an issue you would like to fix, [open a pull request](http://facebook.github.io/react-native/docs/contributing.html#your-first-pull-request). Issues tagged as [`Good First Task`](https://github.com/facebook/react-native/labels/Good%20First%20Task) are a good place to get started.
+* Read through the [React Native docs](http://facebook.github.io/react-native/docs). If you find anything that is confusing or can be improved, you can make edits by clicking "Improve this page" at the bottom of most docs.
+* Browse [Stack Overflow](https://stackoverflow.com/questions/tagged/react-native) and answer questions. This will help you get familiarized with common pitfalls or misunderstandings, which can be useful when contributing updates to the documentation.
+* Take a look at the [features requested](https://react-native.canny.io/feature-requests) by others in the community and consider opening a pull request if you see something you want to work on.
 
-**Please submit your pull request on the `master` branch**. If the fix is critical and should be included in a stable branch please mention it and it will be cherry picked into it by a project maintainer.
+Contributions are very welcome. If you think you need help planning your contribution, please hop into [#react-native](https://discord.gg/0ZcbPKXt5bZjGY5n) and let people know you're looking for a mentor.
 
-*Before* submitting a pull request, please make sure the following is done…
+### Triaging issues and pull requests
 
-1. Fork the repo and create your branch from `master`.
-2. **Describe your test plan in your commit.**
-  - If you've added code that should be tested, add tests!
-  - If you've changed APIs, update the documentation.
-  - If you've updated the docs, verify the website locally and submit screenshots if applicable.
+One great way you can contribute to the project without writing any code is to help triage issues and pull requests as they come in.
 
-  ```
-  $ cd website
-  $ npm install && npm start
-  Open the following in your browser: http://localhost:8079/react-native/index.html
-  ```
+* Ask for more information if the issue does not provide all the details required by the template.
+* Suggest [labels](https://github.com/facebook/react-native/labels) that can help categorize issues.
+* Flag issues that are stale or that should be closed.
+* Ask for test plans and review code.
 
-3. Add the copyright notice to the top of any new files you've added.
-4. Ensure tests pass on Travis and Circle CI.
-5. Make sure your code lints (`node linter.js <files touched>`).
-6. If you haven't already, sign the [CLA](https://code.facebook.com/cla).
-7. Squash your commits (`git rebase -i`).
-   One intent alongside one commit makes it clearer for people to review and easier to understand your intention.
+Adding labels, closing and reopening issues, and merging pull requests is, as you may expect, limited to a subset of contributors. Simply commenting on the issue or pull request can still go a long way towards helping us keep the number of outstanding issues under control.
+
+Once you have become an active contributor in the community, you may gain access to the Facebook GitHub Bot, allowing you to perform some of these operations yourself. You can learn more about the bot in the [maintainer's guide](docs/maintainers.html#facebook-github-bot).
+
+
+## Our development process
+
+Some of the core team will be working directly on [GitHub](https://github.com/facebook/react-native). These changes will be public from the beginning. Other changesets will come via a bridge with Facebook's internal source control. This is a necessity as it allows engineers at Facebook outside of the core team to move fast and contribute from an environment they are comfortable in.
+
+When a change made on GitHub is approved, it will first be imported into Facebook's internal source control. The change will eventually sync back to GitHub as a single commit once it has passed all internal tests.
+
+### Branch organization
+
+We will do our best to keep `master` in good shape, with tests passing at all times. But in order to move fast, we will make API changes that your application might not be compatible with. We will do our best to [communicate these changes](https://github.com/facebook/react-native/releases) and version appropriately so you can lock into a specific version if need be.
+
+To see what changes are coming and provide better feedback to React Native contributors, use the [latest release candidate](http://facebook.github.io/react-native/versions.html) when possible. By the time a release candidate is released, the changes it contains will have been shipped in production Facebook apps for over two weeks.
+
+## Bugs
+
+We use [GitHub Issues](https://github.com/facebook/react-native/issues) for our public bugs. If you would like to report a problem, take a look around and see if someone already opened an issue about it. If you a are certain this is a new, unreported bug, you can submit a [bug report](http://facebook.github.io/react-native/docs/contributing.html#reporting-new-issues).
+
+If you have questions about using React Native, the [help page](http://facebook.github.io/react-native/support.html) list various resources that should help you get started.
+
+We also have a [place where you can request features or enhancements](https://react-native.canny.io/feature-requests). If you see anything you'd like to be implemented, vote it up and explain your use case.
+
+## Reporting new issues
+
+When [opening a new issue](https://github.com/facebook/react-native/issues/new), always make sure to fill out the [issue template](https://raw.githubusercontent.com/facebook/react-native/master/.github/ISSUE_TEMPLATE.md). **This step is very important!** Not doing so may result in your issue getting closed. Don't take this personally if this happens, and feel free to open a new issue once you've gathered all the information required by the template.
+
+* **One issue, one bug:** Please report a single bug per issue.
+* **Provide a Snack:** The best way to get attention on your issue is to provide a reduced test case. You can use [Snack](https://snack.expo.io/) to demonstrate the issue.
+* **Provide reproduction steps:** List all the steps necessary to reproduce the issue. Provide a Snack or upload a sample project to GitHub. The person reading your bug report should be able to follow these steps to reproduce your issue with minimal effort.
+* **Try out the latest version:** Verify that the issue can be reproduced locally by updating your project to use [React Native from `master`](http://facebook.github.io/react-native/versions.html). The bug may have already been fixed!
+
+We're not able to provide support through GitHub Issues. If you're looking for help with your code, consider asking on [Stack Overflow](http://stackoverflow.com/questions/tagged/react-native) or reaching out to the community through [other channels](https://facebook.github.io/react-native/support.html).
+
+### Security bugs
+
+Facebook has a [bounty program](https://www.facebook.com/whitehat/) for the safe disclosure of security bugs. With that in mind, please do not file public issues; go through the process outlined on that page.
+
+## Pull requests
+
+### Your first pull request
+
+So you have decided to contribute code back to upstream by opening a pull request. You've invested a good chunk of time, and we appreciate it. We will do our best to work with you and get the PR looked at.
+
+Working on your first Pull Request? You can learn how from this free video series:
+
+[**How to Contribute to an Open Source Project on GitHub**](https://egghead.io/courses/how-to-contribute-to-an-open-source-project-on-github)
+
+We have a list of [beginner friendly issues](https://github.com/facebook/react-native/labels/Good%20First%20Task) to help you get your feet wet in the React Native codebase and familiar with our contribution process. This is a great place to get started.
+
+### Proposing a change
+
+If you would like to request a new feature or enhancement but are not yet thinking about opening a pull request, we have a [place to track feature requests](https://react-native.canny.io/feature-requests).
+
+If you intend to change the public API, or make any non-trivial changes to the implementation, we recommend [filing an issue](https://github.com/facebook/react-native/issues/new). This lets us reach an agreement on your proposal before you put significant effort into it.
+
+If you're only fixing a bug, it's fine to submit a pull request right away but we still recommend to file an issue detailing what you're fixing. This is helpful in case we don't accept that specific fix but want to keep track of the issue.
+
+### Sending a pull request
+
+Small pull requests are much easier to review and more likely to get merged. Make sure the PR does only one thing, otherwise please split it.
+
+**Before submitting a pull request**, please make sure the following is done:
+
+1. Fork [the repository](https://github.com/facebook/react-native) and create your branch from `master`.
+2. Add the copyright notice to the top of any new files you've added.
+3. Describe your [**test plan**](https://facebook.github.io/react-native/docs/contributing.html#test-plan) in your commit.
+4. Ensure [**tests pass**](https://facebook.github.io/react-native/docs/contributing.html#contrinuous-integration-tests) on both Travis and Circle CI.
+5. Make sure your code lints (`npm run lint`).
+6. If you haven't already, [sign the CLA](https://code.facebook.com/cla).
+
+All pull requests should be opened against the `master` branch.
 
 > **Note:** It is not necessary to keep clicking `Merge master to your branch` on the PR page. You would want to merge master if there are conflicts or tests are failing. The Facebook-GitHub-Bot ultimately squashes all commits to a single one before merging your PR.
 
+#### Test plan
+
+A good test plan has the exact commands you ran and their output, provides screenshots or videos if the pull request changes UI or updates the website.
+
+* If you've added code that should be tested, add tests!
+* If you've changed APIs, update the documentation.
+* If you've updated the docs, verify the website locally and submit screenshots if applicable (see [website/README.md](https://github.com/facebook/react-native/blob/master/website/README.md))
+
+See [What is a Test Plan?](https://medium.com/@martinkonicek/what-is-a-test-plan-8bfc840ec171#.y9lcuqqi9) to learn more.
+
+#### Continuous integration tests
+
+Make sure all **tests pass** on both [Travis][travis] and [Circle CI][circle]. PRs that break tests are unlikely to be merged. Learn more about [testing your changes here](https://facebook.github.io/react-native/docs/testing.html).
+
+[travis]: https://travis-ci.org/facebook/react-native
+[circle]: http://circleci.com/gh/facebook/react-native
+
+#### Breaking changes
+
+When adding a new breaking change, follow this template in your pull request:
+
+```
+### New breaking change here
+
+* **Who does this affect**:
+* **How to migrate**:
+* **Why make this breaking change**:
+* **Severity (number of people affected x effort)**:
+```
+
+If your pull request is merged, a core contributor will update the [list of breaking changes](https://github.com/facebook/react-native/wiki/Breaking-Changes) which is then used to populate the release notes.
+
 #### Copyright Notice for files
 
 Copy and paste this to the top of your new file(s):
@@ -56,34 +157,21 @@ Copy and paste this to the top of your new file(s):
 
 If you've added a new module, add a `@providesModule <moduleName>` at the end of the comment. This will allow the haste package manager to find it.
 
-### Contributor License Agreement (CLA)
+#### Contributor License Agreement (CLA)
 
-In order to accept your pull request, we need you to submit a CLA. You only need to do this once, so if you've done this for another Facebook open source project, you're good to go. If you are submitting a pull request for the first time, just let us know that you have completed the CLA and we can cross-check with your GitHub username.
+In order to accept your pull request, we need you to submit a CLA. You only need to do this once, so if you've done this for another Facebook open source project, you're good to go. If you are submitting a pull request for the first time, the Facebook GitHub Bot will reply with a link to the CLA form. You may also [complete your CLA here](https://code.facebook.com/cla).
 
-[Complete your CLA here](https://code.facebook.com/cla)
+### What happens next?
 
-## Bugs
-
-### Where to Find Known Issues
-
-We are using GitHub Issues for our public bugs. We keep a close eye on this and try to make it clear when we have an internal fix in progress. Before filing a new task, try to make sure your problem doesn't already exist.
-
-### Reporting New Issues
-
-The best way to get your bug fixed is to provide a reduced test case. Please provide either a public repository with a runnable example or a [Sketch](https://sketch.expo.io/).
-
-### Security Bugs
-
-Facebook has a [bounty program](https://www.facebook.com/whitehat/) for the safe disclosure of security bugs. With that in mind, please do not file public issues; go through the process outlined on that page.
-
-## How to Get in Touch
-
-* [Facebook](https://www.facebook.com/groups/react.native.community/)
-* [Twitter](https://www.twitter.com/reactnative)
+The core team will be monitoring for pull requests. Read [what to expect from maintainers](https://facebook.github.io/react-native/docs/maintainers.html#handling-pull-requests) to understand what may happen after you open a pull request.
 
 ## Style Guide
 
-### Code
+Our linter will catch most styling issues that may exist in your code. You can check the status of your code styling by simply running `npm run lint`.
+
+However, there are still some styles that the linter cannot pick up.
+
+### Code Conventions
 
 #### General
 
@@ -129,3 +217,4 @@ Facebook has a [bounty program](https://www.facebook.com/whitehat/) for the safe
 ## License
 
 By contributing to React Native, you agree that your contributions will be licensed under its BSD license.
+<!-- generated_contributing_end -->

ContainerShip/Dockerfile.android

@@ -3,7 +3,6 @@ FROM containership/android-base:latest
 # set default environment variables
 ENV GRADLE_OPTS="-Dorg.gradle.jvmargs=\"-Xmx512m -XX:+HeapDumpOnOutOfMemoryError\""
 ENV JAVA_TOOL_OPTIONS="-Dfile.encoding=UTF8"
-ENV REACT_NATIVE_MAX_WORKERS=1
 
 # add ReactAndroid directory
 ADD .buckconfig /app/.buckconfig

ContainerShip/Dockerfile.javascript

@@ -1,6 +1,6 @@
 FROM library/node:6.9.2
 
-ENV YARN_VERSION=0.19.1
+ENV YARN_VERSION=0.27.5
 
 # install dependencies
 RUN apt-get update && apt-get install ocaml libelf-dev -y

ContainerShip/scripts/run-ci-e2e-tests.sh

@@ -17,7 +17,6 @@ AVD_UUID=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 8 | head -n 1)
 ANDROID_NPM_DEPS="appium@1.5.1 mocha@2.4.5 wd@0.3.11 colors@1.0.3 pretty-data2@0.40.1"
 CLI_PACKAGE=$ROOT/react-native-cli/react-native-cli-*.tgz
 PACKAGE=$ROOT/react-native-*.tgz
-REACT_NATIVE_MAX_WORKERS=1
 
 # solve issue with max user watches limit
 echo 65536 | tee -a /proc/sys/fs/inotify/max_user_watches
@@ -231,13 +230,13 @@ function e2e_suite() {
     # js tests
     if [ $RUN_JS -ne 0 ]; then
       # Check the packager produces a bundle (doesn't throw an error)
-      REACT_NATIVE_MAX_WORKERS=1 react-native bundle --platform android --dev true --entry-file index.android.js --bundle-output android-bundle.js
+      react-native bundle --max-workers 1 --platform android --dev true --entry-file index.android.js --bundle-output android-bundle.js
       if [ $? -ne 0 ]; then
         echo "Could not build android bundle"
         return 1
       fi
 
-      REACT_NATIVE_MAX_WORKERS=1 react-native bundle --platform ios --dev true --entry-file index.ios.js --bundle-output ios-bundle.js
+      react-native bundle --max-workers 1 --platform ios --dev true --entry-file index.ios.js --bundle-output ios-bundle.js
       if [ $? -ne 0 ]; then
         echo "Could not build iOS bundle"
         return 1

IntegrationTests/AccessibilityManagerTest.js

@@ -0,0 +1,52 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @flow
+ * @providesModule AccessibilityManagerTest
+ */
+'use strict';
+
+const React = require('react');
+const ReactNative = require('react-native');
+const { View } = ReactNative;
+const RCTDeviceEventEmitter = require('RCTDeviceEventEmitter');
+const {
+  TestModule,
+  AccessibilityManager,
+} = ReactNative.NativeModules;
+
+
+class AccessibilityManagerTest extends React.Component {
+  componentDidMount() {
+    AccessibilityManager.setAccessibilityContentSizeMultipliers({
+      'extraSmall': 1.0,
+      'small': 2.0,
+      'medium': 3.0,
+      'large': 4.0,
+      'extraLarge': 5.0,
+      'extraExtraLarge': 6.0,
+      'extraExtraExtraLarge': 7.0,
+      'accessibilityMedium': 8.0,
+      'accessibilityLarge': 9.0,
+      'accessibilityExtraLarge': 10.0,
+      'accessibilityExtraExtraLarge': 11.0,
+      'accessibilityExtraExtraExtraLarge': 12.0,
+    });
+    RCTDeviceEventEmitter.addListener('didUpdateDimensions', update => {
+      TestModule.markTestPassed(update.window.fontScale === 4.0);
+    });
+  }
+
+  render(): React.Element<any> {
+    return <View />;
+  }
+}
+
+AccessibilityManagerTest.displayName = 'AccessibilityManagerTest';
+
+module.exports = AccessibilityManagerTest;

IntegrationTests/IntegrationTestsApp.js

@@ -33,8 +33,10 @@ var TESTS = [
   require('./ImageCachePolicyTest'),
   require('./ImageSnapshotTest'),
   require('./PromiseTest'),
+  require('./WebViewTest'),
   require('./SyncMethodTest'),
   require('./WebSocketTest'),
+  require('./AccessibilityManagerTest'),
 ];
 
 TESTS.forEach(

IntegrationTests/LayoutEventsTest.js

@@ -12,6 +12,7 @@
 'use strict';
 
 var React = require('react');
+var createReactClass = require('create-react-class');
 var ReactNative = require('react-native');
 var {
   Image,
@@ -58,7 +59,8 @@ type State = {
   containerStyle?: Style,
 };
 
-var LayoutEventsTest = React.createClass({
+var LayoutEventsTest = createReactClass({
+  displayName: 'LayoutEventsTest',
   getInitialState(): State {
     return {
       didAnimation: false,

IntegrationTests/ReactContentSizeUpdateTest.js

@@ -10,6 +10,7 @@
 'use strict';
 
 var React = require('react');
+var createReactClass = require('create-react-class');
 var ReactNative = require('react-native');
 var RCTNativeAppEventEmitter = require('RCTNativeAppEventEmitter');
 var Subscribable = require('Subscribable');
@@ -24,7 +25,8 @@ var reactViewHeight = 102;
 var newReactViewWidth = 201;
 var newReactViewHeight = 202;
 
-var ReactContentSizeUpdateTest = React.createClass({
+var ReactContentSizeUpdateTest = createReactClass({
+  displayName: 'ReactContentSizeUpdateTest',
   mixins: [Subscribable.Mixin,
            TimerMixin],
 

IntegrationTests/SizeFlexibilityUpdateTest.js

@@ -10,6 +10,7 @@
 'use strict';
 
 var React = require('react');
+var createReactClass = require('create-react-class');
 var ReactNative = require('react-native');
 var RCTNativeAppEventEmitter = require('RCTNativeAppEventEmitter');
 var Subscribable = require('Subscribable');
@@ -22,7 +23,8 @@ var reactViewHeight = 222;
 
 var finalState = false;
 
-var SizeFlexibilityUpdateTest = React.createClass({
+var SizeFlexibilityUpdateTest = createReactClass({
+  displayName: 'SizeFlexibilityUpdateTest',
   mixins: [Subscribable.Mixin],
 
   componentWillMount: function() {

IntegrationTests/TimersTest.js

@@ -12,6 +12,7 @@
 'use strict';
 
 var React = require('react');
+var createReactClass = require('create-react-class');
 var ReactNative = require('react-native');
 var TimerMixin = require('react-timer-mixin');
 
@@ -22,7 +23,8 @@ var {
 } = ReactNative;
 var { TestModule  } = ReactNative.NativeModules;
 
-var TimersTest = React.createClass({
+var TimersTest = createReactClass({
+  displayName: 'TimersTest',
   mixins: [TimerMixin],
 
   _nextTest: () => {},

IntegrationTests/WebViewTest.js

@@ -0,0 +1,59 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+'use strict';
+
+var React = require('react');
+var ReactNative = require('react-native');
+var {
+  WebView,
+} = ReactNative;
+
+var { TestModule } = ReactNative.NativeModules;
+
+class WebViewTest extends React.Component {
+
+  render() {
+    var firstMessageReceived = false;
+    var secondMessageReceived = false;
+    function processMessage(e) {
+      var message = e.nativeEvent.data;
+      if (message === 'First') {firstMessageReceived = true;}
+      if (message === 'Second') {secondMessageReceived = true;}
+
+      // got both messages
+      if (firstMessageReceived && secondMessageReceived) {TestModule.markTestPassed(true);}
+      // wait for next message
+      else if (firstMessageReceived && !secondMessageReceived) {return;}
+      // first message got lost
+      else if (!firstMessageReceived && secondMessageReceived) {throw new Error('First message got lost');}
+    }
+    var html = 'Hello world'
+      + '<script>'
+      + "window.setTimeout(function(){window.postMessage('First'); window.postMessage('Second')}, 0)"
+      + '</script>';
+
+    // fail if messages didn't get through;
+    window.setTimeout(function() { throw new Error(firstMessageReceived ? 'Both messages got lost' : 'Second message got lost');}, 10000);
+
+    var source = {
+      html: html,
+      };
+
+    return (
+      <WebView
+        source={source}
+        onMessage = {processMessage}
+        />
+    );
+  }
+}
+
+WebViewTest.displayName = 'WebViewTest';
+
+module.exports = WebViewTest;

JSCLegacyProfiler/JSCLegacyProfiler.h

@@ -1,13 +0,0 @@
-// Copyright 2004-present Facebook. All Rights Reserved.
-
-#pragma once
-
-#import "JSContextRef.h"
-
-extern "C" {
-
-void nativeProfilerEnableBytecode(void);
-void nativeProfilerStart(JSContextRef ctx, const char *title);
-void nativeProfilerEnd(JSContextRef ctx, const char *title, const char *filename);
-
-}

JSCLegacyProfiler/JSCLegacyProfiler.mm

@@ -1,311 +0,0 @@
-#include "JSCLegacyProfiler.h"
-
-#include "APICast.h"
-#include "LegacyProfiler.h"
-#include "OpaqueJSString.h"
-#include "JSProfilerPrivate.h"
-#include "JSStringRef.h"
-#include "String.h"
-#include "Options.h"
-
-enum json_gen_status {
-  json_gen_status_ok = 0,
-  json_gen_status_error = 1,
-};
-
-enum json_entry {
-  json_entry_key,
-  json_entry_value,
-};
-
-namespace {
-
-struct json_state {
-  FILE *fileOut;
-  bool hasFirst;
-};
-
-}
-
-typedef json_state *json_gen;
-
-static void json_escaped_cstring_printf(json_gen gen, const char *str) {
-  const char *cursor = str;
-  fputc('"', gen->fileOut);
-  while (*cursor) {
-    const char *escape = nullptr;
-    switch (*cursor) {
-      case '"':
-        escape = "\\\"";
-        break;
-      case '\b':
-        escape = "\\b";
-        break;
-      case '\f':
-        escape = "\\f";
-        break;
-      case '\n':
-        escape = "\\n";
-        break;
-      case '\r':
-        escape = "\\r";
-        break;
-      case '\t':
-        escape = "\\t";
-        break;
-      case '\\':
-        escape = "\\\\";
-        break;
-      default:
-        break;
-    }
-    if (escape != nullptr) {
-      fwrite(escape, 1, strlen(escape), gen->fileOut);
-    } else {
-      fputc(*cursor, gen->fileOut);
-    }
-    cursor++;
-  }
-  fputc('"', gen->fileOut);
-}
-
-static json_gen_status json_gen_key_cstring(json_gen gen, const char *buffer) {
-  if (gen->fileOut == nullptr) {
-    return json_gen_status_error;
-  }
-
-  if (gen->hasFirst) {
-    fprintf(gen->fileOut, ",");
-  }
-  gen->hasFirst = true;
-
-  json_escaped_cstring_printf(gen, buffer);
-  return json_gen_status_ok;
-}
-
-static json_gen_status json_gen_map_open(json_gen gen, json_entry entryType) {
-  if (gen->fileOut == nullptr) {
-    return json_gen_status_error;
-  }
-
-  if (entryType == json_entry_value) {
-    fprintf(gen->fileOut, ":");
-  } else if (entryType == json_entry_key) {
-    if (gen->hasFirst) {
-      fprintf(gen->fileOut, ",");
-    }
-  }
-  fprintf(gen->fileOut, "{");
-  gen->hasFirst = false;
-  return json_gen_status_ok;
-}
-
-static json_gen_status json_gen_map_close(json_gen gen) {
-  if (gen->fileOut == nullptr) {
-    return json_gen_status_error;
-  }
-
-  fprintf(gen->fileOut, "}");
-  gen->hasFirst = true;
-  return json_gen_status_ok;
-}
-
-static json_gen_status json_gen_array_open(json_gen gen, json_entry entryType) {
-  if (gen->fileOut == nullptr) {
-    return json_gen_status_error;
-  }
-
-  if (entryType == json_entry_value) {
-    fprintf(gen->fileOut, ":");
-  } else if (entryType == json_entry_key) {
-    if (gen->hasFirst) {
-      fprintf(gen->fileOut, ",");
-    }
-  }
-  fprintf(gen->fileOut, "[");
-  gen->hasFirst = false;
-  return json_gen_status_ok;
-}
-
-static json_gen_status json_gen_array_close(json_gen gen) {
-  if (gen->fileOut == nullptr) {
-    return json_gen_status_error;
-  }
-
-  fprintf(gen->fileOut, "]");
-  gen->hasFirst = true;
-  return json_gen_status_ok;
-}
-
-static json_gen_status json_gen_keyvalue_cstring(json_gen gen, const char *key, const char *value) {
-  if (gen->fileOut == nullptr) {
-    return json_gen_status_error;
-  }
-
-  if (gen->hasFirst) {
-    fprintf(gen->fileOut, ",");
-  }
-  gen->hasFirst = true;
-
-  fprintf(gen->fileOut, "\"%s\" : ", key);
-  json_escaped_cstring_printf(gen, value);
-
-  return json_gen_status_ok;
-}
-
-
-static json_gen_status json_gen_keyvalue_integer(json_gen gen, const char *key, int value) {
-  if (gen->fileOut == nullptr) {
-    return json_gen_status_error;
-  }
-
-  if (gen->hasFirst) {
-    fprintf(gen->fileOut, ",");
-  }
-  gen->hasFirst = true;
-
-  fprintf(gen->fileOut, "\"%s\": %d", key, value);
-  return json_gen_status_ok;
-}
-
-static json_gen_status json_gen_keyvalue_double(json_gen gen, const char *key, double value) {
-  if (gen->fileOut == nullptr) {
-    return json_gen_status_error;
-  }
-
-  if (gen->hasFirst) {
-    fprintf(gen->fileOut, ",");
-  }
-  gen->hasFirst = true;
-
-  fprintf(gen->fileOut, "\"%s\": %.20g", key, value);
-  return json_gen_status_ok;
-}
-
-static json_gen json_gen_alloc(const char *fileName) {
-  json_gen gen = (json_gen)malloc(sizeof(json_state));
-  memset(gen, 0, sizeof(json_state));
-  gen->fileOut = fopen(fileName, "wb");
-  return gen;
-}
-
-static void json_gen_free(json_gen gen) {
-  if (gen->fileOut) {
-    fclose(gen->fileOut);
-  }
-  free(gen);
-}
-
-#define GEN_AND_CHECK(expr) \
-  do { \
-    json_gen_status GEN_AND_CHECK_status = (expr); \
-    if (GEN_AND_CHECK_status != json_gen_status_ok) { \
-      return GEN_AND_CHECK_status; \
-    } \
-  } while (false)
-
-
-static json_gen_status append_children_array_json(json_gen gen, const JSC::ProfileNode *node);
-static json_gen_status append_node_json(json_gen gen, const JSC::ProfileNode *node);
-
-static json_gen_status append_root_json(json_gen gen, const JSC::Profile *profile) {
-  GEN_AND_CHECK(json_gen_map_open(gen, json_entry_key));
-  GEN_AND_CHECK(json_gen_key_cstring(gen, "rootNodes"));
-#if IOS8
-  GEN_AND_CHECK(append_children_array_json(gen, profile->head()));
-#else
-  GEN_AND_CHECK(append_children_array_json(gen, profile->rootNode()));
-#endif
-  GEN_AND_CHECK(json_gen_map_close(gen));
-
-  return json_gen_status_ok;
-}
-
-static json_gen_status append_children_array_json(json_gen gen, const JSC::ProfileNode *node) {
-  GEN_AND_CHECK(json_gen_array_open(gen, json_entry_value));
-  for (RefPtr<JSC::ProfileNode> child : node->children()) {
-    GEN_AND_CHECK(append_node_json(gen, child.get()));
-  }
-  GEN_AND_CHECK(json_gen_array_close(gen));
-
-  return json_gen_status_ok;
-}
-
-static json_gen_status append_node_json(json_gen gen, const JSC::ProfileNode *node) {
-  GEN_AND_CHECK(json_gen_map_open(gen, json_entry_key));
-  GEN_AND_CHECK(json_gen_keyvalue_integer(gen, "id", node->id()));
-
-  if (!node->functionName().isEmpty()) {
-    GEN_AND_CHECK(json_gen_keyvalue_cstring(gen, "functionName", node->functionName().utf8().data()));
-  }
-
-  if (!node->url().isEmpty()) {
-    GEN_AND_CHECK(json_gen_keyvalue_cstring(gen, "url", node->url().utf8().data()));
-    GEN_AND_CHECK(json_gen_keyvalue_integer(gen, "lineNumber", node->lineNumber()));
-    GEN_AND_CHECK(json_gen_keyvalue_integer(gen, "columnNumber", node->columnNumber()));
-  }
-
-  GEN_AND_CHECK(json_gen_key_cstring(gen, "calls"));
-  GEN_AND_CHECK(json_gen_array_open(gen, json_entry_value));
-  for (const JSC::ProfileNode::Call &call : node->calls()) {
-    GEN_AND_CHECK(json_gen_map_open(gen, json_entry_key));
-    GEN_AND_CHECK(json_gen_keyvalue_double(gen, "startTime", call.startTime()));
-#if IOS8
-    GEN_AND_CHECK(json_gen_keyvalue_double(gen, "totalTime", call.totalTime()));
-#else
-    GEN_AND_CHECK(json_gen_keyvalue_double(gen, "totalTime", call.elapsedTime()));
-#endif
-    GEN_AND_CHECK(json_gen_map_close(gen));
-  }
-  GEN_AND_CHECK(json_gen_array_close(gen));
-
-  if (!node->children().isEmpty()) {
-    GEN_AND_CHECK(json_gen_key_cstring(gen, "children"));
-    GEN_AND_CHECK(append_children_array_json(gen, node));
-  }
-
-  GEN_AND_CHECK(json_gen_map_close(gen));
-
-  return json_gen_status_ok;
-}
-
-static void convert_to_json(const JSC::Profile *profile, const char *filename) {
-  json_gen_status status;
-  json_gen gen = json_gen_alloc(filename);
-
-  status = append_root_json(gen, profile);
-  if (status != json_gen_status_ok) {
-    FILE *fileOut = fopen(filename, "wb");
-    if (fileOut != nullptr) {
-      fprintf(fileOut, "{\"error\": %d}", (int)status);
-      fclose(fileOut);
-    }
-  }
-  json_gen_free(gen);
-}
-
-// Based on JSEndProfiling, with a little extra code to return the profile as JSON.
-static void JSEndProfilingAndRender(JSContextRef ctx, const char *title, const char *filename)
-{
-    JSC::ExecState *exec = toJS(ctx);
-    JSC::LegacyProfiler *profiler = JSC::LegacyProfiler::profiler();
-    RefPtr<JSC::Profile> rawProfile = profiler->stopProfiling(exec, WTF::String(title));
-    convert_to_json(rawProfile.get(), filename);
-}
-
-extern "C" {
-
-void nativeProfilerEnableBytecode(void)
-{
-    JSC::Options::setOption("forceProfilerBytecodeGeneration=true");
-}
-
-void nativeProfilerStart(JSContextRef ctx, const char *title) {
-  JSStartProfiling(ctx, JSStringCreateWithUTF8CString(title));
-}
-
-void nativeProfilerEnd(JSContextRef ctx, const char *title, const char *filename) {
-  JSEndProfilingAndRender(ctx, title, filename);
-}
-
-}

JSCLegacyProfiler/Makefile

@@ -1,18 +0,0 @@
-ios9:
-	IOS_VERSION=9 \
-	JSC_VERSION=7601.1.46.3 \
-	WEB_CORE_VERSION=7601.1.46.10 \
-	WTF_VERSION=7601.1.46.3 \
-	make -f Makefile.base
-
-ios8:
-	IOS_VERSION=8 \
-	JSC_VERSION=7600.1.17 \
-	WEB_CORE_VERSION=7600.1.25 \
-	WTF_VERSION=7600.1.24 \
-	make -f Makefile.base
-
-.PHONY: clean
-clean:
-	-rm -rf $(wildcard *.dylib)
-	-rm -rf download

JSCLegacyProfiler/Makefile.base

@@ -1,80 +0,0 @@
-HEADER_PATHS := `find download/JavaScriptCore/JavaScriptCore-$(JSC_VERSION) -name '*.h' | xargs -I{} dirname {} | uniq | xargs -I{} echo "-I {}"`
-
-XCODE_PATH ?= $(shell xcode-select -p)
-SDK_PATH = $(XCODE_PATH)/Platforms/$1.platform/Developer/SDKs/$1.sdk
-SDK_VERSION = $(shell plutil -convert json -o - $(call SDK_PATH,iPhoneOS)/SDKSettings.plist | awk -f parseSDKVersion.awk)
-
-CERT ?= iPhone Developer
-
-ARCHS = x86_64 arm64 armv7 i386
-
-PLATFORM = \
-	if [[ "$*" = "x86_64" || "$*" = "i386" ]]; then \
-		PLATFORM=iPhoneSimulator; \
-	else \
-		PLATFORM=iPhoneOS; \
-	fi;
-
-SYSROOT = -isysroot $(call SDK_PATH,$${PLATFORM})
-
-IOS_LIBS = \
-	download/JavaScriptCore/JavaScriptCore-$(JSC_VERSION) \
-	download/WebCore/WebCore-$(WEB_CORE_VERSION) \
-	download/WTF/WTF-$(WTF_VERSION) \
-	download/JavaScriptCore/JavaScriptCore-$(JSC_VERSION)/Bytecodes.h
-
-IOS_EXT=ios$(IOS_VERSION)
-
-ifneq ($(SDK_VERSION), $(IOS_VERSION))
-
-all:
-	$(error "Expected to be compiled with iOS SDK version 8, found $(SDK_VERSION)")
-
-else
-
-all: RCTJSCProfiler.$(IOS_EXT).dylib /tmp/RCTJSCProfiler
-	cp $^
-
-endif
-
-/tmp/RCTJSCProfiler:
-	mkdir -p $@
-
-RCTJSCProfiler.$(IOS_EXT).dylib: RCTJSCProfiler_unsigned.$(IOS_EXT).dylib
-	cp $< $@
-	codesign -f -s "${CERT}" $@
-
-.PRECIOUS: RCTJSCProfiler_unsigned.$(IOS_EXT).dylib
-RCTJSCProfiler_unsigned.$(IOS_EXT).dylib: $(patsubst %,RCTJSCProfiler_%.$(IOS_EXT).dylib,$(ARCHS))
-	lipo -create -output $@ $^
-
-.PRECIOUS: RCTJSCProfiler_%.$(IOS_EXT).dylib
-RCTJSCProfiler_%.$(IOS_EXT).dylib: $(IOS_LIBS)
-	$(PLATFORM) \
-	clang -w -dynamiclib -o RCTJSCProfiler_$*.$(IOS_EXT).dylib -std=c++11 \
-		-arch $* \
-		-install_name RCTJSCProfiler.$(IOS_EXT).dylib \
-		-include ./download/JavaScriptCore/JavaScriptCore-$(JSC_VERSION)/config.h \
-		-I download \
-		-I download/WebCore/WebCore-$(WEB_CORE_VERSION)/icu \
-		-I download/WTF/WTF-$(WTF_VERSION) \
-		-DNDEBUG=1 \
-		-DIOS$(IOS_VERSION)=1 \
-		-miphoneos-version-min=8.0 \
-		$(SYSROOT) \
-		$(HEADER_PATHS) \
-		-undefined dynamic_lookup \
-		JSCLegacyProfiler.mm
-
-.PRECIOUS: %/Bytecodes.h
-%/Bytecodes.h:
-	python $*/generate-bytecode-files --bytecodes_h $@ $*/bytecode/BytecodeList.json
-
-.PRECIOUS: download/%
-download/%: download/%.tar.gz
-	tar -zxvf $< -C `dirname $@` > /dev/null
-
-.PRECIOUS: %.tar.gz
-%.tar.gz:
-	mkdir -p `dirname $@`
-	curl -o $@ http://www.opensource.apple.com/tarballs/$(patsubst download/%,%,$@)

JSCLegacyProfiler/json2trace

@@ -1,254 +0,0 @@
-#!/usr/bin/env python
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-from __future__ import unicode_literals
-
-import argparse
-import json
-import smap
-import trace_data
-import urllib
-
-SECONDS_TO_NANOSECONDS = (1000*1000)
-SAMPLE_DELTA_IN_SECONDS = 0.0001
-
-class Marker(object):
-    def __init__(self, _name, _timestamp, _depth, _is_end, _ident, url, line, col):
-        self.name = _name
-        self.timestamp = _timestamp
-        self.depth = _depth
-        self.is_end = _is_end
-        self.ident = _ident
-        self.url = url
-        self.line = line
-        self.col = col
-
-# sort markers making sure they are ordered by timestamp then depth of function call
-# and finally that markers of the same ident are sorted in the order begin then end
-    def __cmp__(self, other):
-        if self.timestamp < other.timestamp:
-            return -1
-        if self.timestamp > other.timestamp:
-            return 1
-        if self.depth < other.depth:
-            return -1
-        if self.depth > other.depth:
-            return 1
-        if self.ident == other.ident:
-            if self.is_end:
-                return 1
-        return 0
-
-# calculate marker name based on combination of function name and location
-def _calcname(entry):
-    funcname = ""
-    if "functionName" in entry:
-        funcname = funcname + entry["functionName"]
-    return funcname
-
-def _calcurl(mapcache, entry, map_file):
-    if entry.url not in mapcache:
-        map_url = entry.url.replace('.bundle', '.map')
-
-        if map_url != entry.url:
-            if map_file:
-                print('Loading sourcemap from:' + map_file)
-                map_url = map_file
-
-            try:
-                url_file = urllib.urlopen(map_url)
-                if url_file != None:
-                    entries = smap.parse(url_file)
-                    mapcache[entry.url] = entries
-            except Exception, e:
-                mapcache[entry.url] = []
-
-    if entry.url in mapcache:
-        source_entry = smap.find(mapcache[entry.url], entry.line, entry.col)
-        if source_entry:
-            entry.url = 'file://' + source_entry.src
-            entry.line = source_entry.src_line
-            entry.col = source_entry.src_col
-
-def _compute_markers(markers, call_point, depth):
-    name = _calcname(call_point)
-    ident = len(markers)
-    url = ""
-    lineNumber = -1
-    columnNumber = -1
-    if "url" in call_point:
-        url = call_point["url"]
-    if "lineNumber" in call_point:
-        lineNumber = call_point["lineNumber"]
-    if "columnNumber" in call_point:
-        columnNumber = call_point["columnNumber"]
-
-    for call in call_point["calls"]:
-        markers.append(Marker(name, call["startTime"], depth, 0, ident, url, lineNumber, columnNumber))
-        markers.append(Marker(name, call["startTime"] + call["totalTime"], depth, 1, ident, url, lineNumber, columnNumber))
-        ident = ident + 2
-    if "children" in call_point:
-        for child in call_point["children"]:
-            _compute_markers(markers, child, depth+1);
-
-def _find_child(children, name):
-    for child in children:
-        if child['functionName'] == name:
-            return child
-    return None
-
-def _add_entry_cpuprofiler_program(newtime, cpuprofiler):
-    curnode = _find_child(cpuprofiler['head']['children'], '(program)')
-    if cpuprofiler['lastTime'] != None:
-        lastTime = cpuprofiler['lastTime']
-        while lastTime < newtime:
-            curnode['hitCount'] += 1
-            cpuprofiler['samples'].append(curnode['callUID'])
-            cpuprofiler['timestamps'].append(int(lastTime*SECONDS_TO_NANOSECONDS))
-            lastTime += SAMPLE_DELTA_IN_SECONDS
-        cpuprofiler['lastTime'] = lastTime
-    else:
-        cpuprofiler['lastTime'] = newtime
-
-
-def _add_entry_cpuprofiler(stack, newtime, cpuprofiler):
-    index = len(stack) - 1
-    marker = stack[index]
-
-    if marker.name not in cpuprofiler['markers']:
-        cpuprofiler['markers'][marker.name] = cpuprofiler['id']
-        cpuprofiler['callUID'] += 1
-    callUID = cpuprofiler['markers'][marker.name]
-
-    curnode = cpuprofiler['head']
-    index = 0
-    while index < len(stack):
-        newnode = _find_child(curnode['children'], stack[index].name)
-        if newnode == None:
-            newnode = {}
-            newnode['callUID'] = callUID
-            newnode['url'] = marker.url
-            newnode['functionName'] = stack[index].name
-            newnode['hitCount'] = 0
-            newnode['lineNumber'] = marker.line
-            newnode['columnNumber'] = marker.col
-            newnode['scriptId'] = callUID
-            newnode['positionTicks'] = []
-            newnode['id'] = cpuprofiler['id']
-            cpuprofiler['id'] += 1
-            newnode['children'] = []
-            curnode['children'].append(newnode)
-            curnode['deoptReason'] = ''
-        curnode = newnode
-        index += 1
-
-    if cpuprofiler['lastTime'] == None:
-        cpuprofiler['lastTime'] = newtime
-
-    if cpuprofiler['lastTime'] != None:
-        lastTime = cpuprofiler['lastTime']
-        while lastTime < newtime:
-            curnode['hitCount'] += 1
-            if len(curnode['positionTicks']) == 0:
-                ticks = {}
-                ticks['line'] = curnode['callUID']
-                ticks['ticks'] = 0
-                curnode['positionTicks'].append(ticks)
-            curnode['positionTicks'][0]['ticks'] += 1
-            cpuprofiler['samples'].append(curnode['callUID'])
-            cpuprofiler['timestamps'].append(int(lastTime*1000*1000))
-            lastTime += 0.0001
-        cpuprofiler['lastTime'] = lastTime
-
-def _create_default_cpuprofiler_node(name, _id, _uid):
-    return {'functionName': name,
-            'scriptId':'0',
-            'url':'',
-            'lineNumber':0,
-            'columnNumber':0,
-            'positionTicks':[],
-            'id':_id,
-            'callUID':_uid,
-            'children': [],
-            'hitCount': 0,
-            'deoptReason':''}
-
-def main():
-    parser = argparse.ArgumentParser(description="Converts JSON profile format to fbsystrace text output")
-
-    parser.add_argument(
-        "-o",
-        dest = "output_file",
-        default = None,
-        help = "Output file for trace data")
-    parser.add_argument(
-        "-cpuprofiler",
-        dest = "output_cpuprofiler",
-        default = None,
-        help = "Output file for cpuprofiler data")
-    parser.add_argument(
-        "-map",
-        dest = "map_file",
-        default = None,
-        help = "Map file for symbolicating")
-    parser.add_argument( "file", help = "JSON trace input_file")
-
-    args = parser.parse_args()
-
-    markers = []
-    with open(args.file, "r") as trace_file:
-        trace = json.load(trace_file)
-        for root_entry in trace["rootNodes"]:
-            _compute_markers(markers, root_entry, 0)
-
-    mapcache = {}
-    for m in markers:
-        _calcurl(mapcache, m, args.map_file)
-
-    sorted_markers = list(sorted(markers));
-
-    if args.output_cpuprofiler != None:
-        cpuprofiler = {}
-        cpuprofiler['startTime'] = None
-        cpuprofiler['endTime'] = None
-        cpuprofiler['lastTime'] = None
-        cpuprofiler['id'] = 4
-        cpuprofiler['callUID'] = 4
-        cpuprofiler['samples'] = []
-        cpuprofiler['timestamps'] = []
-        cpuprofiler['markers'] = {}
-        cpuprofiler['head'] = _create_default_cpuprofiler_node('(root)', 1, 1)
-        cpuprofiler['head']['children'].append(_create_default_cpuprofiler_node('(root)', 2, 2))
-        cpuprofiler['head']['children'].append(_create_default_cpuprofiler_node('(program)', 3, 3))
-        marker_stack = []
-        with open(args.output_cpuprofiler, 'w') as file_out:
-            for marker in sorted_markers:
-                if len(marker_stack):
-                    _add_entry_cpuprofiler(marker_stack, marker.timestamp, cpuprofiler)
-                else:
-                    _add_entry_cpuprofiler_program(marker.timestamp, cpuprofiler)
-                if marker.is_end:
-                    marker_stack.pop()
-                else:
-                    marker_stack.append(marker)
-            cpuprofiler['startTime'] = cpuprofiler['timestamps'][0] / 1000000.0
-            cpuprofiler['endTime'] = cpuprofiler['timestamps'][len(cpuprofiler['timestamps']) - 1] / 1000000.0
-            json.dump(cpuprofiler, file_out, sort_keys=False, indent=4, separators=(',', ': '))
-
-
-    if args.output_file != None:
-      with open(args.output_file,"w") as trace_file:
-        for marker in sorted_markers:
-            start_or_end = None
-            if marker.is_end:
-                start_or_end = "E"
-            else:
-                start_or_end = "B"
-            #output with timestamp at high level of precision
-            trace_file.write("json-0 [000] .... {0:.12f}: tracing_mark_write: {1}|0|{2}\n".format(
-                             marker.timestamp,
-                             start_or_end,
-                             marker.name))
-
-main()

JSCLegacyProfiler/parseSDKVersion.awk

@@ -1,10 +0,0 @@
-BEGIN {
-  FS = ":"
-  RS = ","
-}
-
-/"Version"/ {
-  version = substr($2, 2, length($2) - 2)
-  print int(version)
-  exit 0
-}

JSCLegacyProfiler/smap.py

@@ -1,343 +0,0 @@
-
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-from __future__ import unicode_literals
-
-
-"""
- adapted from https://github.com/martine/python-sourcemap into a reuasable module
-"""
-
-"""
-
-                                 Apache License
-                           Version 2.0, January 2010
-                        http://www.apache.org/licenses/
-
-   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-
-   1. Definitions.
-
-      "License" shall mean the terms and conditions for use, reproduction,
-      and distribution as defined by Sections 1 through 9 of this document.
-
-      "Licensor" shall mean the copyright owner or entity authorized by
-      the copyright owner that is granting the License.
-
-      "Legal Entity" shall mean the union of the acting entity and all
-      other entities that control, are controlled by, or are under common
-      control with that entity. For the purposes of this definition,
-      "control" means (i) the power, direct or indirect, to cause the
-      direction or management of such entity, whether by contract or
-      otherwise, or (ii) ownership of fifty percent (50%) or more of the
-      outstanding shares, or (iii) beneficial ownership of such entity.
-
-      "You" (or "Your") shall mean an individual or Legal Entity
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-      "Source" form shall mean the preferred form for making modifications,
-      including but not limited to software source code, documentation
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-      transformation or translation of a Source form, including but
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-      "Work" shall mean the work of authorship, whether in Source or
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-      any Contribution intentionally submitted for inclusion in the Work
-      by You to the Licensor shall be under the terms and conditions of
-      this License, without any additional terms or conditions.
-      Notwithstanding the above, nothing herein shall supersede or modify
-      the terms of any separate license agreement you may have executed
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-
-   END OF TERMS AND CONDITIONS
-
-   APPENDIX: How to apply the Apache License to your work.
-
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
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-      file or class name and description of purpose be included on the
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-   Copyright [yyyy] [name of copyright owner]
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-   Licensed under the Apache License, Version 2.0 (the "License");
-   you may not use this file except in compliance with the License.
-   You may obtain a copy of the License at
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-       http://www.apache.org/licenses/LICENSE-2.0
-
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
-   """
-
-"""A module for parsing source maps, as output by the Closure and
-CoffeeScript compilers and consumed by browsers.  See
-  http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/
-"""
-
-import collections
-import json
-import sys
-import bisect
-
-class entry(object):
-  def __init__(self, dst_line, dst_col, src, src_line, src_col):
-    self.dst_line = dst_line
-    self.dst_col = dst_col
-    self.src = src
-    self.src_line = src_line
-    self.src_col = src_col
-
-  def __cmp__(self, other):
-    #print(self)
-    #print(other)
-    if self.dst_line < other.dst_line:
-      return -1
-    if self.dst_line > other.dst_line:
-      return 1
-    if self.dst_col < other.dst_col:
-      return -1
-    if self.dst_col > other.dst_col:
-      return 1
-    return 0
-
-SmapState = collections.namedtuple(
-    'SmapState', ['dst_line', 'dst_col',
-                  'src', 'src_line', 'src_col',
-                  'name'])
-
-# Mapping of base64 letter -> integer value.
-B64 = dict((c, i) for i, c in
-           enumerate('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
-                     '0123456789+/'))
-
-
-def _parse_vlq(segment):
-  """Parse a string of VLQ-encoded data.
-
-  Returns:
-    a list of integers.
-  """
-
-  values = []
-
-  cur, shift = 0, 0
-  for c in segment:
-    val = B64[c]
-    # Each character is 6 bits:
-    # 5 of value and the high bit is the continuation.
-    val, cont = val & 0b11111, val >> 5
-    cur += val << shift
-    shift += 5
-
-    if not cont:
-      # The low bit of the unpacked value is the sign.
-      cur, sign = cur >> 1, cur & 1
-      if sign:
-        cur = -cur
-      values.append(cur)
-      cur, shift = 0, 0
-
-  if cur or shift:
-      raise Exception('leftover cur/shift in vlq decode')
-
-  return values
-
-
-def _parse_smap(file):
-  """Given a file-like object, yield SmapState()s as they are read from it."""
-
-  smap = json.load(file)
-  sources = smap['sources']
-  names = smap['names']
-  mappings = smap['mappings']
-  lines = mappings.split(';')
-
-  dst_col, src_id, src_line, src_col, name_id = 0, 0, 0, 0, 0
-  for dst_line, line in enumerate(lines):
-    segments = line.split(',')
-    dst_col = 0
-    for segment in segments:
-      if not segment:
-        continue
-      parsed = _parse_vlq(segment)
-      dst_col += parsed[0]
-
-      src = None
-      name = None
-      if len(parsed) > 1:
-        src_id += parsed[1]
-        src = sources[src_id]
-        src_line += parsed[2]
-        src_col += parsed[3]
-
-        if len(parsed) > 4:
-          name_id += parsed[4]
-          name = names[name_id]
-
-      assert dst_line >= 0
-      assert dst_col >= 0
-      assert src_line >= 0
-      assert src_col >= 0
-
-      yield SmapState(dst_line, dst_col, src, src_line, src_col, name)
-
-def find(entries, line, col):
-  test = entry(line, col, '', 0, 0)
-  index = bisect.bisect_right(entries, test)
-  if index == 0:
-    return None
-  return entries[index - 1]
-
-def parse(file):
-  # Simple demo that shows files that most contribute to total size.
-  lookup = []
-  for state in _parse_smap(file):
-    lookup.append(entry(state.dst_line, state.dst_col, state.src, state.src_line, state.src_col))
-
-  sorted_lookup = list(sorted(lookup))
-  return sorted_lookup

JSCLegacyProfiler/trace_data.py

@@ -1,244 +0,0 @@
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-from __future__ import unicode_literals
-
-import re
-import unittest
-
-"""
-#                              _-----=> irqs-off
-#                             / _----=> need-resched
-#                            | / _---=> hardirq/softirq
-#                            || / _--=> preempt-depth
-#                            ||| /     delay
-#           TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION
-#              | |       |   ||||       |         |
-          <idle>-0     [001] ...2  3269.291072: sched_switch: prev_comm=swapper/1 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=mmcqd/0 next_pid=120 next_prio=120
-"""
-TRACE_LINE_PATTERN = re.compile(
-    r'^\s*(?P<task>.+)-(?P<pid>\d+)\s+(?:\((?P<tgid>.+)\)\s+)?\[(?P<cpu>\d+)\]\s+(?:(?P<flags>\S{4})\s+)?(?P<timestamp>[0-9.]+):\s+(?P<function>.+)$')
-
-"""
-Example lines from custom app traces:
-0: B|27295|providerRemove
-0: E
-tracing_mark_write: S|27311|NNFColdStart<D-7744962>|1112249168
-"""
-APP_TRACE_LINE_PATTERN = re.compile(
-    r'^(?P<type>.+?): (?P<args>.+)$')
-
-"""
-Example section names:
-NNFColdStart
-NNFColdStart<0><T7744962>
-NNFColdStart<X>
-NNFColdStart<T7744962>
-"""
-DECORATED_SECTION_NAME_PATTERN = re.compile(r'^(?P<section_name>.*?)(?:<0>)?(?:<(?P<command>.)(?P<argument>.*?)>)?$')
-
-SYSTRACE_LINE_TYPES = set(['0', 'tracing_mark_write'])
-
-class TraceLine(object):
-    def __init__(self, task, pid, tgid, cpu, flags, timestamp, function):
-        self.task = task
-        self.pid = pid
-        self.tgid = tgid
-        self.cpu = cpu
-        self.flags = flags
-        self.timestamp = timestamp
-        self.function = function
-        self.canceled = False
-
-    @property
-    def is_app_trace_line(self):
-        return isinstance(self.function, AppTraceFunction)
-
-    def cancel(self):
-        self.canceled = True
-
-    def __str__(self):
-        if self.canceled:
-            return ""
-        elif self.tgid:
-            return "{task:>16s}-{pid:<5d} ({tgid:5s}) [{cpu:03d}] {flags:4s} {timestamp:12f}: {function}\n".format(**vars(self))
-        elif self.flags:
-            return "{task:>16s}-{pid:<5d} [{cpu:03d}] {flags:4s} {timestamp:12f}: {function}\n".format(**vars(self))
-        else:
-            return "{task:>16s}-{pid:<5d} [{cpu:03d}] {timestamp:12.6f}: {function}\n".format(**vars(self))
-
-
-class AppTraceFunction(object):
-    def __init__(self, type, args):
-        self.type = type
-        self.args = args
-        self.operation = args[0]
-
-        if len(args) >= 2 and args[1]:
-            self.pid = int(args[1])
-        if len(args) >= 3:
-            self._section_name, self.command, self.argument = _parse_section_name(args[2])
-            args[2] = self._section_name
-        else:
-            self._section_name = None
-            self.command = None
-            self.argument = None
-        self.cookie = None
-
-    @property
-    def section_name(self):
-        return self._section_name
-
-    @section_name.setter
-    def section_name(self, value):
-        self._section_name = value
-        self.args[2] = value
-
-    def __str__(self):
-        return "{type}: {args}".format(type=self.type, args='|'.join(self.args))
-
-
-class AsyncTraceFunction(AppTraceFunction):
-    def __init__(self, type, args):
-        super(AsyncTraceFunction, self).__init__(type, args)
-
-        self.cookie = int(args[3])
-
-
-TRACE_TYPE_MAP = {
-    'S': AsyncTraceFunction,
-    'T': AsyncTraceFunction,
-    'F': AsyncTraceFunction,
-}
-
-def parse_line(line):
-    match = TRACE_LINE_PATTERN.match(line.strip())
-    if not match:
-        return None
-
-    task = match.group("task")
-    pid = int(match.group("pid"))
-    tgid = match.group("tgid")
-    cpu = int(match.group("cpu"))
-    flags = match.group("flags")
-    timestamp = float(match.group("timestamp"))
-    function = match.group("function")
-
-    app_trace = _parse_function(function)
-    if app_trace:
-        function = app_trace
-
-    return TraceLine(task, pid, tgid, cpu, flags, timestamp, function)
-
-def parse_dextr_line(line):
-    task = line["name"]
-    pid = line["pid"]
-    tgid = line["tid"]
-    cpu = None
-    flags = None
-    timestamp = line["ts"]
-    function = AppTraceFunction("DextrTrace", [line["ph"], line["pid"], line["name"]])
-
-    return TraceLine(task, pid, tgid, cpu, flags, timestamp, function)
-
-
-def _parse_function(function):
-    line_match = APP_TRACE_LINE_PATTERN.match(function)
-    if not line_match:
-        return None
-
-    type = line_match.group("type")
-    if not type in SYSTRACE_LINE_TYPES:
-        return None
-
-    args = line_match.group("args").split('|')
-    if len(args) == 1 and len(args[0]) == 0:
-        args = None
-
-    constructor = TRACE_TYPE_MAP.get(args[0], AppTraceFunction)
-    return constructor(type, args)
-
-
-def _parse_section_name(section_name):
-    if section_name is None:
-        return section_name, None, None
-
-    section_name_match = DECORATED_SECTION_NAME_PATTERN.match(section_name)
-    section_name = section_name_match.group("section_name")
-    command = section_name_match.group("command")
-    argument = section_name_match.group("argument")
-    return section_name, command, argument
-
-
-def _format_section_name(section_name, command, argument):
-    if not command:
-        return section_name
-
-    return "{section_name}<{command}{argument}>".format(**vars())
-
-
-class RoundTripFormattingTests(unittest.TestCase):
-    def testPlainSectionName(self):
-        section_name = "SectionName12345-5562342fas"
-
-        self.assertEqual(section_name, _format_section_name(*_parse_section_name(section_name)))
-
-    def testDecoratedSectionName(self):
-        section_name = "SectionName12345-5562342fas<D-123456>"
-
-        self.assertEqual(section_name, _format_section_name(*_parse_section_name(section_name)))
-
-    def testSimpleFunction(self):
-        function = "0: E"
-
-        self.assertEqual(function, str(_parse_function(function)))
-
-    def testFunctionWithoutCookie(self):
-        function = "0: B|27295|providerRemove"
-
-        self.assertEqual(function, str(_parse_function(function)))
-
-    def testFunctionWithCookie(self):
-        function = "0: S|27311|NNFColdStart|1112249168"
-
-        self.assertEqual(function, str(_parse_function(function)))
-
-    def testFunctionWithCookieAndArgs(self):
-        function = "0: T|27311|NNFColdStart|1122|Start"
-
-        self.assertEqual(function, str(_parse_function(function)))
-
-    def testFunctionWithArgsButNoPid(self):
-        function = "0: E|||foo=bar"
-
-        self.assertEqual(function, str(_parse_function(function)))
-
-    def testKitKatFunction(self):
-        function = "tracing_mark_write: B|14127|Looper.dispatchMessage|arg=>>>>> Dispatching to Handler (android.os.Handler) {422ae980} null: 0|Java"
-
-        self.assertEqual(function, str(_parse_function(function)))
-
-    def testNonSysTraceFunctionIgnored(self):
-        function = "sched_switch: prev_comm=swapper/1 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=mmcqd/0 next_pid=120 next_prio=120"
-
-        self.assertEqual(None, _parse_function(function))
-
-    def testLineWithFlagsAndTGID(self):
-        line = "          <idle>-0     (  550) [000] d..2  7953.258473: cpu_idle: state=1 cpu_id=0\n"
-
-        self.assertEqual(line, str(parse_line(line)))
-
-    def testLineWithFlagsAndNoTGID(self):
-        line = "          <idle>-0     (-----) [000] d..2  7953.258473: cpu_idle: state=1 cpu_id=0\n"
-
-        self.assertEqual(line, str(parse_line(line)))
-
-    def testLineWithFlags(self):
-        line = "          <idle>-0     [001] ...2  3269.291072: sched_switch: prev_comm=swapper/1 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=mmcqd/0 next_pid=120 next_prio=120\n"
-
-        self.assertEqual(line, str(parse_line(line)))
-
-    def testLineWithoutFlags(self):
-        line = "          <idle>-0     [001]  3269.291072: sched_switch: prev_comm=swapper/1 prev_pid=0 prev_prio=120 prev_state=R ==> next_comm=mmcqd/0 next_pid=120 next_prio=120\n"
-
-        self.assertEqual(line, str(parse_line(line)))

Libraries/ART/ART.xcodeproj/project.pbxproj

@@ -152,7 +152,10 @@
 				0CF68AF71AF0549300FF9E5C /* RCTConvert+ART.m */,
 				0CF68AC21AF0540F00FF9E5C /* Products */,
 			);
+			indentWidth = 2;
 			sourceTree = "<group>";
+			tabWidth = 2;
+			usesTabs = 0;
 		};
 		0CF68AC21AF0540F00FF9E5C /* Products */ = {
 			isa = PBXGroup;

Libraries/ART/ReactNativeART.js

@@ -392,7 +392,7 @@ class Shape extends React.Component {
   render() {
     var props = this.props;
     var path = props.d || childrenAsString(props.children);
-    var d = new Path(path).toJSON();
+    var d = (path instanceof Path ? path : new Path(path)).toJSON();
     return (
       <NativeShape
         fill={extractBrush(props.fill, props)}
@@ -486,7 +486,8 @@ function extractAlignment(alignment) {
 class Text extends React.Component {
   render() {
     var props = this.props;
-    var textPath = props.path ? new Path(props.path).toJSON() : null;
+    var path = props.path;
+    var textPath = path ? (path instanceof Path ? path : new Path(path)).toJSON() : null;
     var textFrame = extractFontAndLines(
       props.font,
       childrenAsString(props.children)

Libraries/ActionSheetIOS/RCTActionSheet.xcodeproj/project.pbxproj

@@ -35,6 +35,7 @@
 			indentWidth = 2;
 			sourceTree = "<group>";
 			tabWidth = 2;
+			usesTabs = 0;
 		};
 /* End PBXGroup section */
 

Libraries/AdSupport/AdSupportIOS.js

@@ -1,38 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @providesModule AdSupportIOS
- * @flow
- */
-'use strict';
-
-var AdSupport = require('NativeModules').AdSupport;
-
-/**
- * `AdSupport` provides access to the "advertising identifier". If you link this library
- * in your project, you may need to justify your use for this identifier when submitting
- * your application to the App Store.
- *
- * In order to use `AdSupport` in your project, you must link the `RCTAdSupport` library.
- * In Xcode, you can manually add the `RCTAdSupport.m` and `RCTAdSupport.h` files from
- * `node_modules/react-native/Libraries/AdSupport/` to the `Libraries/React/Base/` folder
- * of your current project.
- *
- * You can refer to [Linking](docs/linking-libraries-ios.html) for help.
- *
- */
-
-module.exports = {
-  getAdvertisingId: function(onSuccess: Function, onFailure: Function) {
-    AdSupport.getAdvertisingId(onSuccess, onFailure);
-  },
-
-  getAdvertisingTrackingEnabled: function(onSuccess: Function, onFailure: Function) {
-    AdSupport.getAdvertisingTrackingEnabled(onSuccess, onFailure);
-  },
-};

Libraries/AdSupport/RCTAdSupport.m

@@ -1,37 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- */
-
-#import "RCTAdSupport.h"
-
-#import <AdSupport/ASIdentifierManager.h>
-
-#import <React/RCTUtils.h>
-
-@implementation RCTAdSupport
-
-RCT_EXPORT_MODULE()
-
-RCT_EXPORT_METHOD(getAdvertisingId:(RCTResponseSenderBlock)callback
-                  withErrorCallback:(RCTResponseErrorBlock)errorCallback)
-{
-  NSUUID *advertisingIdentifier = [ASIdentifierManager sharedManager].advertisingIdentifier;
-  if (advertisingIdentifier) {
-    callback(@[advertisingIdentifier.UUIDString]);
-  } else {
-    errorCallback(RCTErrorWithMessage(@"Advertising identifier is unavailable."));
-  }
-}
-
-RCT_EXPORT_METHOD(getAdvertisingTrackingEnabled:(RCTResponseSenderBlock)callback
-                  withErrorCallback:(__unused RCTResponseSenderBlock)errorCallback)
-{
-  callback(@[@([ASIdentifierManager sharedManager].advertisingTrackingEnabled)]);
-}
-
-@end

Libraries/AdSupport/RCTAdSupport.xcodeproj/project.pbxproj

@@ -1,257 +0,0 @@
-// !$*UTF8*$!
-{
-	archiveVersion = 1;
-	classes = {
-	};
-	objectVersion = 46;
-	objects = {
-
-/* Begin PBXBuildFile section */
-		832C819C1AAF6E1A007FA2F7 /* RCTAdSupport.m in Sources */ = {isa = PBXBuildFile; fileRef = 832C819B1AAF6E1A007FA2F7 /* RCTAdSupport.m */; };
-/* End PBXBuildFile section */
-
-/* Begin PBXCopyFilesBuildPhase section */
-		832C817E1AAF6DEF007FA2F7 /* CopyFiles */ = {
-			isa = PBXCopyFilesBuildPhase;
-			buildActionMask = 2147483647;
-			dstPath = "include/$(PRODUCT_NAME)";
-			dstSubfolderSpec = 16;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXCopyFilesBuildPhase section */
-
-/* Begin PBXFileReference section */
-		832C81801AAF6DEF007FA2F7 /* libRCTAdSupport.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libRCTAdSupport.a; sourceTree = BUILT_PRODUCTS_DIR; };
-		832C819A1AAF6E1A007FA2F7 /* RCTAdSupport.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; lineEnding = 0; path = RCTAdSupport.h; sourceTree = "<group>"; xcLanguageSpecificationIdentifier = xcode.lang.objcpp; };
-		832C819B1AAF6E1A007FA2F7 /* RCTAdSupport.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTAdSupport.m; sourceTree = "<group>"; };
-/* End PBXFileReference section */
-
-/* Begin PBXFrameworksBuildPhase section */
-		832C817D1AAF6DEF007FA2F7 /* Frameworks */ = {
-			isa = PBXFrameworksBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXFrameworksBuildPhase section */
-
-/* Begin PBXGroup section */
-		832C81771AAF6DEF007FA2F7 = {
-			isa = PBXGroup;
-			children = (
-				832C819A1AAF6E1A007FA2F7 /* RCTAdSupport.h */,
-				832C819B1AAF6E1A007FA2F7 /* RCTAdSupport.m */,
-				832C81811AAF6DEF007FA2F7 /* Products */,
-			);
-			indentWidth = 2;
-			sourceTree = "<group>";
-			tabWidth = 2;
-		};
-		832C81811AAF6DEF007FA2F7 /* Products */ = {
-			isa = PBXGroup;
-			children = (
-				832C81801AAF6DEF007FA2F7 /* libRCTAdSupport.a */,
-			);
-			name = Products;
-			sourceTree = "<group>";
-		};
-/* End PBXGroup section */
-
-/* Begin PBXNativeTarget section */
-		832C817F1AAF6DEF007FA2F7 /* RCTAdSupport */ = {
-			isa = PBXNativeTarget;
-			buildConfigurationList = 832C81941AAF6DF0007FA2F7 /* Build configuration list for PBXNativeTarget "RCTAdSupport" */;
-			buildPhases = (
-				832C817C1AAF6DEF007FA2F7 /* Sources */,
-				832C817D1AAF6DEF007FA2F7 /* Frameworks */,
-				832C817E1AAF6DEF007FA2F7 /* CopyFiles */,
-			);
-			buildRules = (
-			);
-			dependencies = (
-			);
-			name = RCTAdSupport;
-			productName = RCTAdSupport;
-			productReference = 832C81801AAF6DEF007FA2F7 /* libRCTAdSupport.a */;
-			productType = "com.apple.product-type.library.static";
-		};
-/* End PBXNativeTarget section */
-
-/* Begin PBXProject section */
-		832C81781AAF6DEF007FA2F7 /* Project object */ = {
-			isa = PBXProject;
-			attributes = {
-				LastUpgradeCheck = 0620;
-				ORGANIZATIONNAME = Facebook;
-				TargetAttributes = {
-					832C817F1AAF6DEF007FA2F7 = {
-						CreatedOnToolsVersion = 6.2;
-					};
-				};
-			};
-			buildConfigurationList = 832C817B1AAF6DEF007FA2F7 /* Build configuration list for PBXProject "RCTAdSupport" */;
-			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = English;
-			hasScannedForEncodings = 0;
-			knownRegions = (
-				en,
-			);
-			mainGroup = 832C81771AAF6DEF007FA2F7;
-			productRefGroup = 832C81811AAF6DEF007FA2F7 /* Products */;
-			projectDirPath = "";
-			projectRoot = "";
-			targets = (
-				832C817F1AAF6DEF007FA2F7 /* RCTAdSupport */,
-			);
-		};
-/* End PBXProject section */
-
-/* Begin PBXSourcesBuildPhase section */
-		832C817C1AAF6DEF007FA2F7 /* Sources */ = {
-			isa = PBXSourcesBuildPhase;
-			buildActionMask = 2147483647;
-			files = (
-				832C819C1AAF6E1A007FA2F7 /* RCTAdSupport.m in Sources */,
-			);
-			runOnlyForDeploymentPostprocessing = 0;
-		};
-/* End PBXSourcesBuildPhase section */
-
-/* Begin XCBuildConfiguration section */
-		832C81921AAF6DF0007FA2F7 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
-				CLANG_CXX_LIBRARY = "libc++";
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				COPY_PHASE_STRIP = NO;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu99;
-				GCC_DYNAMIC_NO_PIC = NO;
-				GCC_OPTIMIZATION_LEVEL = 0;
-				GCC_PREPROCESSOR_DEFINITIONS = (
-					"DEBUG=1",
-					"$(inherited)",
-				);
-				GCC_SYMBOLS_PRIVATE_EXTERN = NO;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_INITIALIZER_NOT_FULLY_BRACKETED = YES;
-				GCC_WARN_SHADOW = YES;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
-				MTL_ENABLE_DEBUG_INFO = YES;
-				ONLY_ACTIVE_ARCH = YES;
-				SDKROOT = iphoneos;
-				SKIP_INSTALL = YES;
-				WARNING_CFLAGS = (
-					"-Werror",
-					"-Wall",
-				);
-			};
-			name = Debug;
-		};
-		832C81931AAF6DF0007FA2F7 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				ALWAYS_SEARCH_USER_PATHS = NO;
-				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
-				CLANG_CXX_LIBRARY = "libc++";
-				CLANG_ENABLE_MODULES = YES;
-				CLANG_ENABLE_OBJC_ARC = YES;
-				CLANG_WARN_BOOL_CONVERSION = YES;
-				CLANG_WARN_CONSTANT_CONVERSION = YES;
-				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
-				CLANG_WARN_EMPTY_BODY = YES;
-				CLANG_WARN_ENUM_CONVERSION = YES;
-				CLANG_WARN_INT_CONVERSION = YES;
-				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
-				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
-				CLANG_WARN_UNREACHABLE_CODE = YES;
-				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
-				COPY_PHASE_STRIP = NO;
-				ENABLE_NS_ASSERTIONS = NO;
-				ENABLE_STRICT_OBJC_MSGSEND = YES;
-				GCC_C_LANGUAGE_STANDARD = gnu99;
-				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
-				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
-				GCC_WARN_INITIALIZER_NOT_FULLY_BRACKETED = YES;
-				GCC_WARN_SHADOW = YES;
-				GCC_WARN_UNDECLARED_SELECTOR = YES;
-				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
-				GCC_WARN_UNUSED_FUNCTION = YES;
-				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
-				MTL_ENABLE_DEBUG_INFO = NO;
-				SDKROOT = iphoneos;
-				SKIP_INSTALL = YES;
-				VALIDATE_PRODUCT = YES;
-				WARNING_CFLAGS = (
-					"-Werror",
-					"-Wall",
-				);
-			};
-			name = Release;
-		};
-		832C81951AAF6DF0007FA2F7 /* Debug */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				CLANG_STATIC_ANALYZER_MODE = deep;
-				OTHER_LDFLAGS = "-ObjC";
-				PRODUCT_NAME = "$(TARGET_NAME)";
-				RUN_CLANG_STATIC_ANALYZER = YES;
-			};
-			name = Debug;
-		};
-		832C81961AAF6DF0007FA2F7 /* Release */ = {
-			isa = XCBuildConfiguration;
-			buildSettings = {
-				CLANG_STATIC_ANALYZER_MODE = deep;
-				OTHER_LDFLAGS = "-ObjC";
-				PRODUCT_NAME = "$(TARGET_NAME)";
-			};
-			name = Release;
-		};
-/* End XCBuildConfiguration section */
-
-/* Begin XCConfigurationList section */
-		832C817B1AAF6DEF007FA2F7 /* Build configuration list for PBXProject "RCTAdSupport" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				832C81921AAF6DF0007FA2F7 /* Debug */,
-				832C81931AAF6DF0007FA2F7 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-		832C81941AAF6DF0007FA2F7 /* Build configuration list for PBXNativeTarget "RCTAdSupport" */ = {
-			isa = XCConfigurationList;
-			buildConfigurations = (
-				832C81951AAF6DF0007FA2F7 /* Debug */,
-				832C81961AAF6DF0007FA2F7 /* Release */,
-			);
-			defaultConfigurationIsVisible = 0;
-			defaultConfigurationName = Release;
-		};
-/* End XCConfigurationList section */
-	};
-	rootObject = 832C81781AAF6DEF007FA2F7 /* Project object */;
-}

Libraries/Animated/src/AnimatedImplementation.js

@@ -459,6 +459,7 @@ type SpringAnimationConfig = AnimationConfig & {
   speed?: number,
   tension?: number,
   friction?: number,
+  delay?: number,
 };
 
 type SpringAnimationConfigSingle = AnimationConfig & {
@@ -471,6 +472,7 @@ type SpringAnimationConfigSingle = AnimationConfig & {
   speed?: number,
   tension?: number,
   friction?: number,
+  delay?: number,
 };
 
 function withDefault<T>(value: ?T, defaultValue: T): T {
@@ -492,6 +494,8 @@ class SpringAnimation extends Animation {
   _toValue: any;
   _tension: number;
   _friction: number;
+  _delay: number;
+  _timeout: any;
   _lastTime: number;
   _onUpdate: (value: number) => void;
   _animationFrame: any;
@@ -508,6 +512,7 @@ class SpringAnimation extends Animation {
     this._initialVelocity = config.velocity;
     this._lastVelocity = withDefault(config.velocity, 0);
     this._toValue = config.toValue;
+    this._delay = withDefault(config.delay, 0);
     this._useNativeDriver = shouldUseNativeDriver(config);
     this.__isInteraction = config.isInteraction !== undefined ? config.isInteraction : true;
     this.__iterations = config.iterations !== undefined ? config.iterations : 1;
@@ -571,10 +576,20 @@ class SpringAnimation extends Animation {
         this._initialVelocity !== null) {
       this._lastVelocity = this._initialVelocity;
     }
-    if (this._useNativeDriver) {
-      this.__startNativeAnimation(animatedValue);
+
+    var start = () => {
+      if (this._useNativeDriver) {
+        this.__startNativeAnimation(animatedValue);
+      } else {
+        this.onUpdate();
+      }
+    };
+
+    //  If this._delay is more than 0, we start after the timeout.
+    if (this._delay) {
+      this._timeout = setTimeout(start, this._delay);
     } else {
-      this.onUpdate();
+      start();
     }
   }
 
@@ -685,6 +700,7 @@ class SpringAnimation extends Animation {
   stop(): void {
     super.stop();
     this.__active = false;
+    clearTimeout(this._timeout);
     global.cancelAnimationFrame(this._animationFrame);
     this.__debouncedOnEnd({finished: false});
   }
@@ -1108,6 +1124,11 @@ class AnimatedInterpolation extends AnimatedWithChildren {
     this._interpolation = Interpolation.create(config);
   }
 
+  __makeNative() {
+    this._parent.__makeNative();
+    super.__makeNative();
+  }
+
   __getValue(): number | string {
     var parentValue: number = this._parent.__getValue();
     invariant(
@@ -1218,9 +1239,9 @@ class AnimatedDivision extends AnimatedWithChildren {
   }
 
   __makeNative() {
-    super.__makeNative();
     this._a.__makeNative();
     this._b.__makeNative();
+    super.__makeNative();
   }
 
   __getValue(): number {
@@ -1266,9 +1287,9 @@ class AnimatedMultiplication extends AnimatedWithChildren {
   }
 
   __makeNative() {
-    super.__makeNative();
     this._a.__makeNative();
     this._b.__makeNative();
+    super.__makeNative();
   }
 
   __getValue(): number {
@@ -1309,8 +1330,8 @@ class AnimatedModulo extends AnimatedWithChildren {
   }
 
   __makeNative() {
-    super.__makeNative();
     this._a.__makeNative();
+    super.__makeNative();
   }
 
   __getValue(): number {
@@ -1356,8 +1377,8 @@ class AnimatedDiffClamp extends AnimatedWithChildren {
   }
 
   __makeNative() {
-    super.__makeNative();
     this._a.__makeNative();
+    super.__makeNative();
   }
 
   interpolate(config: InterpolationConfigType): AnimatedInterpolation {
@@ -2825,9 +2846,9 @@ module.exports = {
    *
    *```javascript
    *  onScroll={Animated.event(
-   *    [{nativeEvent: {contentOffset: {x: this._scrollX}}}]
+   *    [{nativeEvent: {contentOffset: {x: this._scrollX}}}],
    *    {listener},          // Optional async listener
-   *  )
+   *  )}
    *  ...
    *  onPanResponderMove: Animated.event([
    *    null,                // raw event arg ignored

Libraries/Animated/src/__tests__/Animated-test.js

@@ -8,8 +8,6 @@
  */
 'use strict';
 
-jest.disableAutomock();
-
 var Animated = require('Animated');
 describe('Animated tests', () => {
   beforeEach(() => {

Libraries/Animated/src/__tests__/AnimatedNative-test.js

@@ -9,7 +9,6 @@
 'use strict';
 
 jest
-  .disableAutomock()
   .setMock('Text', {})
   .setMock('View', {})
   .setMock('Image', {})

Libraries/Animated/src/__tests__/Easing-test.js

@@ -8,8 +8,6 @@
  */
 'use strict';
 
-jest.unmock('Easing');
-
 var Easing = require('Easing');
 describe('Easing', () => {
   it('should work with linear', () => {

Libraries/Animated/src/__tests__/Interpolation-test.js

@@ -8,11 +8,6 @@
  */
 'use strict';
 
-jest
-  .unmock('Interpolation')
-  .unmock('Easing')
-  .unmock('normalizeColor');
-
 var Interpolation = require('Interpolation');
 var Easing = require('Easing');
 

Libraries/Animated/src/__tests__/bezier-test.js

@@ -10,7 +10,6 @@
 
 'use strict';
 
-jest.unmock('bezier');
 var bezier = require('bezier');
 
 var identity = function (x) { return x; };

Libraries/BatchedBridge/BatchedBridge.js

@@ -8,10 +8,12 @@
  *
  * @providesModule BatchedBridge
  * @flow
+ * @format
  */
 'use strict';
 
 const MessageQueue = require('MessageQueue');
+
 const BatchedBridge = new MessageQueue();
 
 // Wire up the batched bridge on the global object so that we can call into it.

Libraries/BatchedBridge/MessageQueue.js

@@ -8,6 +8,7 @@
  *
  * @providesModule MessageQueue
  * @flow
+ * @format
  */
 
 /*eslint no-bitwise: 0*/
@@ -15,7 +16,6 @@
 'use strict';
 
 const ErrorUtils = require('ErrorUtils');
-const JSTimersExecution = require('JSTimersExecution');
 const Systrace = require('Systrace');
 
 const deepFreezeAndThrowOnMutationInDev = require('deepFreezeAndThrowOnMutationInDev');
@@ -25,9 +25,13 @@ const stringifySafe = require('stringifySafe');
 export type SpyData = {
   type: number,
   module: ?string,
-  method: string|number,
-  args: any
-}
+  method: string | number,
+  isSync: boolean,
+  successCbId: number,
+  failCbId: number,
+  args: Array<any>,
+  returnValue?: any,
+};
 
 const TO_JS = 0;
 const TO_NATIVE = 1;
@@ -39,10 +43,13 @@ const MIN_TIME_BETWEEN_FLUSHES_MS = 5;
 
 const TRACE_TAG_REACT_APPS = 1 << 17;
 
-const DEBUG_INFO_LIMIT = 32;
+const DEBUG_INFO_LIMIT = 64;
+
+// Work around an initialization order issue
+let JSTimers = null;
 
 class MessageQueue {
-  _lazyCallableModules: {[key: string]: void => Object};
+  _lazyCallableModules: {[key: string]: (void) => Object};
   _queue: [Array<number>, Array<number>, Array<any>, number];
   _successCallbacks: Array<?Function>;
   _failureCallbacks: Array<?Function>;
@@ -71,23 +78,19 @@ class MessageQueue {
       this._remoteModuleTable = {};
       this._remoteMethodTable = {};
     }
-
-    (this:any).callFunctionReturnFlushedQueue = this.callFunctionReturnFlushedQueue.bind(this);
-    (this:any).callFunctionReturnResultAndFlushedQueue = this.callFunctionReturnResultAndFlushedQueue.bind(this);
-    (this:any).flushedQueue = this.flushedQueue.bind(this);
-    (this:any).invokeCallbackAndReturnFlushedQueue = this.invokeCallbackAndReturnFlushedQueue.bind(this);
   }
 
   /**
    * Public APIs
    */
-
-  static spy(spyOrToggle: boolean|(data: SpyData) => void){
-    if (spyOrToggle === true){
+  static spy(spyOrToggle: boolean | ((data: SpyData) => void)) {
+    if (spyOrToggle === true) {
       MessageQueue.prototype.__spy = info => {
-        console.log(`${info.type === TO_JS ? 'N->JS' : 'JS->N'} : ` +
-                    `${info.module ? (info.module + '.') : ''}${info.method}` +
-                    `(${JSON.stringify(info.args)})`);
+        console.log(
+          `${info.type === TO_JS ? 'N->JS' : 'JS->N'} : ` +
+            `${info.module ? info.module + '.' : ''}${info.method}` +
+            `(${JSON.stringify(info.args)})`,
+        );
       };
     } else if (spyOrToggle === false) {
       MessageQueue.prototype.__spy = null;
@@ -96,32 +99,40 @@ class MessageQueue {
     }
   }
 
-  callFunctionReturnFlushedQueue(module: string, method: string, args: Array<any>) {
+  callFunctionReturnFlushedQueue = (
+    module: string,
+    method: string,
+    args: Array<any>,
+  ) => {
     this.__guard(() => {
       this.__callFunction(module, method, args);
     });
 
     return this.flushedQueue();
-  }
+  };
 
-  callFunctionReturnResultAndFlushedQueue(module: string, method: string, args: Array<any>) {
+  callFunctionReturnResultAndFlushedQueue = (
+    module: string,
+    method: string,
+    args: Array<any>,
+  ) => {
     let result;
     this.__guard(() => {
       result = this.__callFunction(module, method, args);
     });
 
     return [result, this.flushedQueue()];
-  }
+  };
 
-  invokeCallbackAndReturnFlushedQueue(cbID: number, args: Array<any>) {
+  invokeCallbackAndReturnFlushedQueue = (cbID: number, args: Array<any>) => {
     this.__guard(() => {
       this.__invokeCallback(cbID, args);
     });
 
     return this.flushedQueue();
-  }
+  };
 
-  flushedQueue() {
+  flushedQueue = () => {
     this.__guard(() => {
       this.__callImmediates();
     });
@@ -129,7 +140,7 @@ class MessageQueue {
     const queue = this._queue;
     this._queue = [[], [], [], this._callID];
     return queue[0].length ? queue : null;
-  }
+  };
 
   getEventLoopRunningTime() {
     return new Date().getTime() - this._eventLoopStartTime;
@@ -141,7 +152,7 @@ class MessageQueue {
 
   registerLazyCallableModule(name: string, factory: void => Object) {
     let module: Object;
-    let getValue: ?(void => Object) = factory;
+    let getValue: ?(void) => Object = factory;
     this._lazyCallableModules[name] = () => {
       if (getValue) {
         module = getValue();
@@ -151,11 +162,18 @@ class MessageQueue {
     };
   }
 
-  _getCallableModule(name: string) {
-    return this._lazyCallableModules[name]();
+  getCallableModule(name: string) {
+    const getValue = this._lazyCallableModules[name];
+    return getValue ? getValue() : null;
   }
 
-  enqueueNativeCall(moduleID: number, methodID: number, params: Array<any>, onFail: ?Function, onSucc: ?Function) {
+  enqueueNativeCall(
+    moduleID: number,
+    methodID: number,
+    params: Array<any>,
+    onFail: ?Function,
+    onSucc: ?Function,
+  ) {
     if (onFail || onSucc) {
       if (__DEV__) {
         this._debugInfo[this._callID] = [moduleID, methodID];
@@ -173,7 +191,11 @@ class MessageQueue {
 
     if (__DEV__) {
       global.nativeTraceBeginAsyncFlow &&
-        global.nativeTraceBeginAsyncFlow(TRACE_TAG_REACT_APPS, 'native', this._callID);
+        global.nativeTraceBeginAsyncFlow(
+          TRACE_TAG_REACT_APPS,
+          'native',
+          this._callID,
+        );
     }
     this._callID++;
 
@@ -185,32 +207,51 @@ class MessageQueue {
       JSON.stringify(params);
 
       // The params object should not be mutated after being queued
-      deepFreezeAndThrowOnMutationInDev((params:any));
+      deepFreezeAndThrowOnMutationInDev((params: any));
     }
     this._queue[PARAMS].push(params);
 
     const now = new Date().getTime();
-    if (global.nativeFlushQueueImmediate &&
-        (now - this._lastFlush >= MIN_TIME_BETWEEN_FLUSHES_MS ||
-         this._inCall === 0)) {
+    if (
+      global.nativeFlushQueueImmediate &&
+      (now - this._lastFlush >= MIN_TIME_BETWEEN_FLUSHES_MS ||
+        this._inCall === 0)
+    ) {
       var queue = this._queue;
       this._queue = [[], [], [], this._callID];
       this._lastFlush = now;
       global.nativeFlushQueueImmediate(queue);
     }
     Systrace.counterEvent('pending_js_to_native_queue', this._queue[0].length);
-    if (__DEV__ && this.__spy && isFinite(moduleID)) {
-      this.__spy(
-        { type: TO_NATIVE,
-          module: this._remoteModuleTable[moduleID],
-          method: this._remoteMethodTable[moduleID][methodID],
-          args: params }
-      );
-    } else if (this.__spy) {
-      this.__spy({type: TO_NATIVE, module: moduleID + '', method: methodID, args: params});
+
+    if (this.__spy) {
+      this.__spyNativeCall(moduleID, methodID, params, {
+        failCbId: onFail ? params[params.length - 2] : -1,
+        successCbId: onSucc ? params[params.length - 1] : -1,
+      });
     }
   }
 
+  callSyncHook(moduleID: number, methodID: number, args: Array<any>) {
+    if (__DEV__) {
+      invariant(
+        global.nativeCallSyncHook,
+        'Calling synchronous methods on native ' +
+          'modules is not supported in Chrome.\n\n Consider providing alternative ' +
+          'methods to expose this method in debug mode, e.g. by exposing constants ' +
+          'ahead-of-time.',
+      );
+    }
+    const returnValue = global.nativeCallSyncHook(moduleID, methodID, args);
+    if (this.__spy) {
+      this.__spyNativeCall(moduleID, methodID, args, {
+        isSync: true,
+        returnValue,
+      });
+    }
+    return returnValue;
+  }
+
   createDebugLookup(moduleID: number, name: string, methods: Array<string>) {
     if (__DEV__) {
       this._remoteModuleTable[moduleID] = name;
@@ -234,8 +275,11 @@ class MessageQueue {
   }
 
   __callImmediates() {
-    Systrace.beginEvent('JSTimersExecution.callImmediates()');
-    JSTimersExecution.callImmediates();
+    Systrace.beginEvent('JSTimers.callImmediates()');
+    if (!JSTimers) {
+      JSTimers = require('JSTimers');
+    }
+    JSTimers.callImmediates();
     Systrace.endEvent();
   }
 
@@ -244,18 +288,20 @@ class MessageQueue {
     this._eventLoopStartTime = this._lastFlush;
     Systrace.beginEvent(`${module}.${method}()`);
     if (this.__spy) {
-      this.__spy({ type: TO_JS, module, method, args});
+      this.__spyJSCall(module, method, args);
     }
-    const moduleMethods = this._getCallableModule(module);
+    const moduleMethods = this.getCallableModule(module);
     invariant(
       !!moduleMethods,
       'Module %s is not a registered callable module (calling %s)',
-      module, method
+      module,
+      method,
     );
     invariant(
       !!moduleMethods[method],
       'Method %s does not exist on module %s',
-      method, module
+      method,
+      module,
     );
     const result = moduleMethods[method].apply(moduleMethods, args);
     Systrace.endEvent();
@@ -268,7 +314,10 @@ class MessageQueue {
 
     // The rightmost bit of cbID indicates fail (0) or success (1), the other bits are the callID shifted left.
     const callID = cbID >>> 1;
-    const callback = (cbID & 1) ? this._successCallbacks[callID] : this._failureCallbacks[callID];
+    const isSuccess = cbID & 1;
+    const callback = isSuccess
+      ? this._successCallbacks[callID]
+      : this._failureCallbacks[callID];
 
     if (__DEV__) {
       const debug = this._debugInfo[callID];
@@ -277,20 +326,24 @@ class MessageQueue {
       if (!callback) {
         let errorMessage = `Callback with id ${cbID}: ${module}.${method}() not found`;
         if (method) {
-          errorMessage = `The callback ${method}() exists in module ${module}, `
-          + 'but only one callback may be registered to a function in a native module.';
+          errorMessage =
+            `The callback ${method}() exists in module ${module}, ` +
+            'but only one callback may be registered to a function in a native module.';
         }
-        invariant(
-          callback,
-          errorMessage
-        );
+        invariant(callback, errorMessage);
       }
-      const profileName = debug ? '<callback for ' + module + '.' + method + '>' : cbID;
-      if (callback && this.__spy) {
-        this.__spy({ type: TO_JS, module:null, method:profileName, args });
+      const profileName = debug
+        ? '<callback for ' + module + '.' + method + '>'
+        : cbID + '';
+      if (this.__spy) {
+        this.__spyJSCall(null, profileName, args, {
+          failCbId: isSuccess ? -1 : cbID,
+          successCbId: isSuccess ? cbID : -1,
+        });
       }
       Systrace.beginEvent(
-        `MessageQueue.invokeCallback(${profileName}, ${stringifySafe(args)})`);
+        `MessageQueue.invokeCallback(${profileName}, ${stringifySafe(args)})`,
+      );
     }
 
     if (!callback) {
@@ -304,6 +357,57 @@ class MessageQueue {
       Systrace.endEvent();
     }
   }
+
+  __spyJSCall(
+    module: ?string,
+    method: string,
+    methodArgs: Array<any>,
+    params: any,
+  ) {
+    if (!this.__spy) {
+      return;
+    }
+    this.__spy({
+      type: TO_JS,
+      isSync: false,
+      module,
+      method,
+      failCbId: -1,
+      successCbId: -1,
+      args: methodArgs,
+      ...params,
+    });
+  }
+
+  __spyNativeCall(
+    moduleID: number,
+    methodID: number,
+    methodArgs: Array<any>,
+    params: any,
+  ) {
+    const spy = this.__spy;
+    if (!spy) {
+      return;
+    }
+
+    let moduleName = moduleID + '';
+    let methodName = methodID;
+    if (__DEV__ && isFinite(moduleID)) {
+      moduleName = this._remoteModuleTable[moduleID];
+      methodName = this._remoteMethodTable[moduleID][methodID];
+    }
+
+    spy({
+      type: TO_NATIVE,
+      isSync: false,
+      module: moduleName,
+      method: methodName,
+      failCbId: -1,
+      successCbId: -1,
+      args: methodArgs,
+      ...params,
+    });
+  }
 }
 
 module.exports = MessageQueue;

Libraries/BatchedBridge/NativeModules.js

@@ -15,6 +15,8 @@ const BatchedBridge = require('BatchedBridge');
 
 const invariant = require('fbjs/lib/invariant');
 
+import type {ExtendedError} from 'parseErrorStack';
+
 type ModuleConfig = [
   string, /* name */
   ?Object, /* constants */
@@ -80,13 +82,7 @@ function genMethod(moduleID: number, methodID: number, type: MethodType) {
     };
   } else if (type === 'sync') {
     fn = function(...args: Array<any>) {
-      if (__DEV__) {
-        invariant(global.nativeCallSyncHook, 'Calling synchronous methods on native ' +
-          'modules is not supported in Chrome.\n\n Consider providing alternative ' +
-          'methods to expose this method in debug mode, e.g. by exposing constants ' +
-          'ahead-of-time.');
-      }
-      return global.nativeCallSyncHook(moduleID, methodID, args);
+      return BatchedBridge.callSyncHook(moduleID, methodID, args);
     };
   } else {
     fn = function(...args: Array<any>) {
@@ -113,13 +109,13 @@ function arrayContains<T>(array: Array<T>, value: T): boolean {
   return array.indexOf(value) !== -1;
 }
 
-function createErrorFromErrorData(errorData: {message: string}): Error {
+function createErrorFromErrorData(errorData: {message: string}): ExtendedError {
   const {
     message,
     ...extraErrorInfo
-  } = errorData;
-  const error = new Error(message);
-  (error:any).framesToPop = 1;
+  } = errorData || {};
+  const error : ExtendedError = new Error(message);
+  error.framesToPop = 1;
   return Object.assign(error, extraErrorInfo);
 }
 

Libraries/BatchedBridge/__tests__/MessageQueue-test.js

@@ -9,10 +9,6 @@
  */
 'use strict';
 
-// const MessageQueueTestConfig = require('MessageQueueTestConfig');
-jest.unmock('MessageQueue');
-jest.unmock('defineLazyObjectProperty');
-
 let MessageQueue;
 let MessageQueueTestModule;
 let queue;
@@ -84,4 +80,34 @@ describe('MessageQueue', function() {
     queue.__invokeCallback(1);
     expect(() => queue.__invokeCallback(0)).toThrow();
   });
+
+  it('should throw when calling with unknown module', () => {
+    const unknownModule = 'UnknownModule', unknownMethod = 'UnknownMethod';
+    expect(() => queue.__callFunction(unknownModule, unknownMethod)).toThrow(
+      `Module ${unknownModule} is not a registered callable module (calling ${unknownMethod})`,
+    );
+  });
+
+  it('should return lazily registered module', () => {
+    const dummyModule = {}, name = 'modulesName';
+    queue.registerLazyCallableModule(name, () => dummyModule);
+
+    expect(queue.getCallableModule(name)).toEqual(dummyModule);
+  });
+
+  it('should not initialize lazily registered module before it was used for the first time', () => {
+    const dummyModule = {}, name = 'modulesName';
+    const factory = jest.fn(() => dummyModule);
+    queue.registerLazyCallableModule(name, factory);
+    expect(factory).not.toHaveBeenCalled();
+  });
+
+  it('should initialize lazily registered module only once', () => {
+    const dummyModule = {}, name = 'modulesName';
+    const factory = jest.fn(() => dummyModule);
+    queue.registerLazyCallableModule(name, factory);
+    queue.getCallableModule(name);
+    queue.getCallableModule(name);
+    expect(factory).toHaveBeenCalledTimes(1);
+  });
 });

Libraries/BatchedBridge/__tests__/NativeModules-test.js

@@ -9,10 +9,12 @@
  */
 'use strict';
 
-jest.unmock('BatchedBridge');
-jest.unmock('defineLazyObjectProperty');
-jest.unmock('MessageQueue');
-jest.unmock('NativeModules');
+jest
+  .enableAutomock()
+  .unmock('BatchedBridge')
+  .unmock('defineLazyObjectProperty')
+  .unmock('MessageQueue')
+  .unmock('NativeModules');
 
 let BatchedBridge;
 let NativeModules;

Libraries/Blob/Blob.js

@@ -0,0 +1,153 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule Blob
+ * @flow
+ */
+
+'use strict';
+
+const invariant = require('fbjs/lib/invariant');
+const uuid = require('uuid');
+
+const { BlobModule } = require('NativeModules');
+
+import type { BlobProps } from 'BlobTypes';
+
+/**
+ * Opaque JS representation of some binary data in native.
+ *
+ * The API is modeled after the W3C Blob API, with one caveat
+ * regarding explicit deallocation. Refer to the `close()`
+ * method for further details.
+ *
+ * Example usage in a React component:
+ *
+ *   class WebSocketImage extends React.Component {
+ *      state = {blob: null};
+ *      componentDidMount() {
+ *        let ws = this.ws = new WebSocket(...);
+ *        ws.binaryType = 'blob';
+ *        ws.onmessage = (event) => {
+ *          if (this.state.blob) {
+ *            this.state.blob.close();
+ *          }
+ *          this.setState({blob: event.data});
+ *        };
+ *      }
+ *      componentUnmount() {
+ *        if (this.state.blob) {
+ *          this.state.blob.close();
+ *        }
+ *        this.ws.close();
+ *      }
+ *      render() {
+ *        if (!this.state.blob) {
+ *          return <View />;
+ *        }
+ *        return <Image source={{uri: URL.createObjectURL(this.state.blob)}} />;
+ *      }
+ *   }
+ *
+ * Reference: https://developer.mozilla.org/en-US/docs/Web/API/Blob
+ */
+class Blob {
+  /**
+   * Size of the data contained in the Blob object, in bytes.
+   */
+  size: number;
+  /*
+   * String indicating the MIME type of the data contained in the Blob.
+   * If the type is unknown, this string is empty.
+   */
+  type: string;
+
+  /*
+   * Unique id to identify the blob on native side (non-standard)
+   */
+  blobId: string;
+  /*
+   * Offset to indicate part of blob, used when sliced (non-standard)
+   */
+  offset: number;
+
+  /**
+   * Construct blob instance from blob data from native.
+   * Used internally by modules like XHR, WebSocket, etc.
+   */
+  static create(props: BlobProps): Blob {
+    return Object.assign(Object.create(Blob.prototype), props);
+  }
+
+  /**
+   * Constructor for JS consumers.
+   * Currently we only support creating Blobs from other Blobs.
+   * Reference: https://developer.mozilla.org/en-US/docs/Web/API/Blob/Blob
+   */
+  constructor(parts: Array<Blob>, options: any) {
+    const blobId = uuid();
+    let size = 0;
+    parts.forEach((part) => {
+      invariant(part instanceof Blob, 'Can currently only create a Blob from other Blobs');
+      size += part.size;
+    });
+    BlobModule.createFromParts(parts, blobId);
+    return Blob.create({
+      blobId,
+      offset: 0,
+      size,
+    });
+  }
+
+  /*
+   * This method is used to create a new Blob object containing
+   * the data in the specified range of bytes of the source Blob.
+   * Reference: https://developer.mozilla.org/en-US/docs/Web/API/Blob/slice
+   */
+  slice(start?: number, end?: number): Blob {
+    let offset = this.offset;
+    let size = this.size;
+    if (typeof start === 'number') {
+      if (start > size) {
+        start = size;
+      }
+      offset += start;
+      size -= start;
+
+      if (typeof end === 'number') {
+        if (end < 0) {
+          end = this.size + end;
+        }
+        size = end - start;
+      }
+    }
+    return Blob.create({
+      blobId: this.blobId,
+      offset,
+      size,
+    });
+  }
+
+  /**
+   * This method is in the standard, but not actually implemented by
+   * any browsers at this point. It's important for how Blobs work in
+   * React Native, however, since we cannot de-allocate resources automatically,
+   * so consumers need to explicitly de-allocate them.
+   *
+   * Note that the semantics around Blobs created via `blob.slice()`
+   * and `new Blob([blob])` are different. `blob.slice()` creates a
+   * new *view* onto the same binary data, so calling `close()` on any
+   * of those views is enough to deallocate the data, whereas
+   * `new Blob([blob, ...])` actually copies the data in memory.
+   */
+  close() {
+    BlobModule.release(this.blobId);
+  }
+}
+
+module.exports = Blob;

Libraries/Blob/BlobTypes.js

@@ -6,13 +6,20 @@
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
  *
- * @polyfill
+ * @providesModule BlobTypes
+ * @flow
  */
 
-/* eslint-disable strict */
+'use strict';
 
-global.__DEV__ = false;
+export type BlobProps = {
+  blobId: string,
+  offset: number,
+  size: number,
+  type?: string,
+};
 
-global.__BUNDLE_START_TIME__ = global.nativePerformanceNow
- ? global.nativePerformanceNow()
- : Date.now();
+export type FileProps = BlobProps & {
+  name: string,
+  lastModified: number,
+};

Libraries/Blob/RCTBlob.xcodeproj/project.pbxproj

@@ -0,0 +1,347 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 46;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		AD0871131E215B28007D136D /* RCTBlobManager.h in Copy Headers */ = {isa = PBXBuildFile; fileRef = AD9A43C11DFC7126008DC588 /* RCTBlobManager.h */; };
+		AD0871161E215EC9007D136D /* RCTBlobManager.h in Headers */ = {isa = PBXBuildFile; fileRef = AD9A43C11DFC7126008DC588 /* RCTBlobManager.h */; };
+		AD0871181E215ED1007D136D /* RCTBlobManager.h in Headers */ = {isa = PBXBuildFile; fileRef = AD9A43C11DFC7126008DC588 /* RCTBlobManager.h */; };
+		AD08711A1E2162C8007D136D /* RCTBlobManager.h in Copy Headers */ = {isa = PBXBuildFile; fileRef = AD9A43C11DFC7126008DC588 /* RCTBlobManager.h */; };
+		AD9A43C31DFC7126008DC588 /* RCTBlobManager.m in Sources */ = {isa = PBXBuildFile; fileRef = AD9A43C21DFC7126008DC588 /* RCTBlobManager.m */; };
+		ADD01A711E09404A00F6D226 /* RCTBlobManager.m in Sources */ = {isa = PBXBuildFile; fileRef = AD9A43C21DFC7126008DC588 /* RCTBlobManager.m */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		358F4ED51D1E81A9004DF814 /* Copy Headers */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = include/RCTBlob;
+			dstSubfolderSpec = 16;
+			files = (
+				AD08711A1E2162C8007D136D /* RCTBlobManager.h in Copy Headers */,
+			);
+			name = "Copy Headers";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		AD0871121E215B16007D136D /* Copy Headers */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = include/RCTBlob;
+			dstSubfolderSpec = 16;
+			files = (
+				AD0871131E215B28007D136D /* RCTBlobManager.h in Copy Headers */,
+			);
+			name = "Copy Headers";
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		358F4ED71D1E81A9004DF814 /* libRCTBlob.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libRCTBlob.a; sourceTree = BUILT_PRODUCTS_DIR; };
+		AD9A43C11DFC7126008DC588 /* RCTBlobManager.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = RCTBlobManager.h; sourceTree = "<group>"; };
+		AD9A43C21DFC7126008DC588 /* RCTBlobManager.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = RCTBlobManager.m; sourceTree = "<group>"; };
+		ADD01A681E09402E00F6D226 /* libRCTBlob-tvOS.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libRCTBlob-tvOS.a"; sourceTree = BUILT_PRODUCTS_DIR; };
+/* End PBXFileReference section */
+
+/* Begin PBXGroup section */
+		358F4ECE1D1E81A9004DF814 = {
+			isa = PBXGroup;
+			children = (
+				AD9A43C11DFC7126008DC588 /* RCTBlobManager.h */,
+				AD9A43C21DFC7126008DC588 /* RCTBlobManager.m */,
+				358F4ED81D1E81A9004DF814 /* Products */,
+			);
+			indentWidth = 2;
+			sourceTree = "<group>";
+			tabWidth = 2;
+			usesTabs = 0;
+		};
+		358F4ED81D1E81A9004DF814 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				358F4ED71D1E81A9004DF814 /* libRCTBlob.a */,
+				ADD01A681E09402E00F6D226 /* libRCTBlob-tvOS.a */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXHeadersBuildPhase section */
+		AD0871151E215EB7007D136D /* Headers */ = {
+			isa = PBXHeadersBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				AD0871161E215EC9007D136D /* RCTBlobManager.h in Headers */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		AD0871171E215ECC007D136D /* Headers */ = {
+			isa = PBXHeadersBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				AD0871181E215ED1007D136D /* RCTBlobManager.h in Headers */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXHeadersBuildPhase section */
+
+/* Begin PBXNativeTarget section */
+		358F4ED61D1E81A9004DF814 /* RCTBlob */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 358F4EE01D1E81A9004DF814 /* Build configuration list for PBXNativeTarget "RCTBlob" */;
+			buildPhases = (
+				AD0871151E215EB7007D136D /* Headers */,
+				358F4ED51D1E81A9004DF814 /* Copy Headers */,
+				358F4ED31D1E81A9004DF814 /* Sources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = RCTBlob;
+			productName = SLKBlobs;
+			productReference = 358F4ED71D1E81A9004DF814 /* libRCTBlob.a */;
+			productType = "com.apple.product-type.library.static";
+		};
+		ADD01A671E09402E00F6D226 /* RCTBlob-tvOS */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = ADD01A6E1E09402E00F6D226 /* Build configuration list for PBXNativeTarget "RCTBlob-tvOS" */;
+			buildPhases = (
+				AD0871171E215ECC007D136D /* Headers */,
+				AD0871121E215B16007D136D /* Copy Headers */,
+				ADD01A641E09402E00F6D226 /* Sources */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = "RCTBlob-tvOS";
+			productName = "RCTBlob-tvOS";
+			productReference = ADD01A681E09402E00F6D226 /* libRCTBlob-tvOS.a */;
+			productType = "com.apple.product-type.library.static";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		358F4ECF1D1E81A9004DF814 /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 0730;
+				ORGANIZATIONNAME = "Silk Labs";
+				TargetAttributes = {
+					358F4ED61D1E81A9004DF814 = {
+						CreatedOnToolsVersion = 7.3;
+					};
+					ADD01A671E09402E00F6D226 = {
+						CreatedOnToolsVersion = 8.2;
+						ProvisioningStyle = Automatic;
+					};
+				};
+			};
+			buildConfigurationList = 358F4ED21D1E81A9004DF814 /* Build configuration list for PBXProject "RCTBlob" */;
+			compatibilityVersion = "Xcode 3.2";
+			developmentRegion = English;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+			);
+			mainGroup = 358F4ECE1D1E81A9004DF814;
+			productRefGroup = 358F4ED81D1E81A9004DF814 /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				358F4ED61D1E81A9004DF814 /* RCTBlob */,
+				ADD01A671E09402E00F6D226 /* RCTBlob-tvOS */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXSourcesBuildPhase section */
+		358F4ED31D1E81A9004DF814 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				AD9A43C31DFC7126008DC588 /* RCTBlobManager.m in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+		ADD01A641E09402E00F6D226 /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				ADD01A711E09404A00F6D226 /* RCTBlobManager.m in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin XCBuildConfiguration section */
+		358F4EDE1D1E81A9004DF814 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = dwarf;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				ENABLE_TESTABILITY = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_DYNAMIC_NO_PIC = NO;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_OPTIMIZATION_LEVEL = 0;
+				GCC_PREPROCESSOR_DEFINITIONS = (
+					"DEBUG=1",
+					"$(inherited)",
+				);
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				MTL_ENABLE_DEBUG_INFO = YES;
+				ONLY_ACTIVE_ARCH = YES;
+				SDKROOT = iphoneos;
+				SKIP_INSTALL = YES;
+			};
+			name = Debug;
+		};
+		358F4EDF1D1E81A9004DF814 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
+				CLANG_WARN_EMPTY_BODY = YES;
+				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
+				COPY_PHASE_STRIP = NO;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				ENABLE_NS_ASSERTIONS = NO;
+				ENABLE_STRICT_OBJC_MSGSEND = YES;
+				GCC_C_LANGUAGE_STANDARD = gnu99;
+				GCC_NO_COMMON_BLOCKS = YES;
+				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
+				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
+				GCC_WARN_UNDECLARED_SELECTOR = YES;
+				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
+				GCC_WARN_UNUSED_FUNCTION = YES;
+				GCC_WARN_UNUSED_VARIABLE = YES;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				SDKROOT = iphoneos;
+				SKIP_INSTALL = YES;
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		358F4EE11D1E81A9004DF814 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				OTHER_LDFLAGS = "-ObjC";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SKIP_INSTALL = YES;
+			};
+			name = Debug;
+		};
+		358F4EE21D1E81A9004DF814 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				OTHER_LDFLAGS = "-ObjC";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SKIP_INSTALL = YES;
+			};
+			name = Release;
+		};
+		ADD01A6F1E09402E00F6D226 /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				OTHER_LDFLAGS = "-ObjC";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SDKROOT = appletvos;
+				SKIP_INSTALL = YES;
+				TVOS_DEPLOYMENT_TARGET = 10.1;
+			};
+			name = Debug;
+		};
+		ADD01A701E09402E00F6D226 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CLANG_WARN_DOCUMENTATION_COMMENTS = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				OTHER_LDFLAGS = "-ObjC";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SDKROOT = appletvos;
+				SKIP_INSTALL = YES;
+				TVOS_DEPLOYMENT_TARGET = 10.1;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		358F4ED21D1E81A9004DF814 /* Build configuration list for PBXProject "RCTBlob" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				358F4EDE1D1E81A9004DF814 /* Debug */,
+				358F4EDF1D1E81A9004DF814 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		358F4EE01D1E81A9004DF814 /* Build configuration list for PBXNativeTarget "RCTBlob" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				358F4EE11D1E81A9004DF814 /* Debug */,
+				358F4EE21D1E81A9004DF814 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		ADD01A6E1E09402E00F6D226 /* Build configuration list for PBXNativeTarget "RCTBlob-tvOS" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				ADD01A6F1E09402E00F6D226 /* Debug */,
+				ADD01A701E09402E00F6D226 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 358F4ECF1D1E81A9004DF814 /* Project object */;
+}

Libraries/Blob/RCTBlobManager.h

@@ -5,13 +5,12 @@
  * This source code is licensed under the BSD-style license found in the
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @format
  */
 
-'use strict';
+#import <React/RCTBridge.h>
+#import <React/RCTBridgeModule.h>
+#import <React/RCTURLRequestHandler.h>
 
-const Bar = require('./Bar');
-const Foo = require('./Foo');
+@interface RCTBlobManager : NSObject <RCTBridgeModule, RCTURLRequestHandler>
 
-module.exports = {Foo, Bar};
+@end

Libraries/Blob/RCTBlobManager.m

@@ -0,0 +1,213 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ */
+
+#import "RCTBlobManager.h"
+
+#import <React/RCTConvert.h>
+#import <React/RCTWebSocketModule.h>
+
+static NSString *const kBlobUriScheme = @"blob";
+
+@interface _RCTBlobContentHandler : NSObject <RCTWebSocketContentHandler>
+
+- (instancetype)initWithBlobManager:(RCTBlobManager *)blobManager;
+
+@end
+
+
+@implementation RCTBlobManager
+{
+  NSMutableDictionary<NSString *, NSData *> *_blobs;
+  _RCTBlobContentHandler *_contentHandler;
+  NSOperationQueue *_queue;
+}
+
+RCT_EXPORT_MODULE(BlobModule)
+
+@synthesize bridge = _bridge;
+
+- (NSDictionary<NSString *, id> *)constantsToExport
+{
+  return @{
+    @"BLOB_URI_SCHEME": kBlobUriScheme,
+    @"BLOB_URI_HOST": [NSNull null],
+  };
+}
+
+- (dispatch_queue_t)methodQueue
+{
+  return [[_bridge webSocketModule] methodQueue];
+}
+
+- (NSString *)store:(NSData *)data
+{
+  NSString *blobId = [NSUUID UUID].UUIDString;
+  [self store:data withId:blobId];
+  return blobId;
+}
+
+- (void)store:(NSData *)data withId:(NSString *)blobId
+{
+  if (!_blobs) {
+    _blobs = [NSMutableDictionary new];
+  }
+
+  _blobs[blobId] = data;
+}
+
+- (NSData *)resolve:(NSDictionary<NSString *, id> *)blob
+{
+  NSString *blobId = [RCTConvert NSString:blob[@"blobId"]];
+  NSNumber *offset = [RCTConvert NSNumber:blob[@"offset"]];
+  NSNumber *size = [RCTConvert NSNumber:blob[@"size"]];
+
+  return [self resolve:blobId
+                offset:offset ? [offset integerValue] : 0
+                  size:size ? [size integerValue] : -1];
+}
+
+- (NSData *)resolve:(NSString *)blobId offset:(NSInteger)offset size:(NSInteger)size
+{
+  NSData *data = _blobs[blobId];
+  if (!data) {
+    return nil;
+  }
+  if (offset != 0 || (size != -1 && size != data.length)) {
+    data = [data subdataWithRange:NSMakeRange(offset, size)];
+  }
+  return data;
+}
+
+RCT_EXPORT_METHOD(enableBlobSupport:(nonnull NSNumber *)socketID)
+{
+  if (!_contentHandler) {
+    _contentHandler = [[_RCTBlobContentHandler alloc] initWithBlobManager:self];
+  }
+  [[_bridge webSocketModule] setContentHandler:_contentHandler forSocketID:socketID];
+}
+
+RCT_EXPORT_METHOD(disableBlobSupport:(nonnull NSNumber *)socketID)
+{
+  [[_bridge webSocketModule] setContentHandler:nil forSocketID:socketID];
+}
+
+RCT_EXPORT_METHOD(sendBlob:(NSDictionary *)blob socketID:(nonnull NSNumber *)socketID)
+{
+  [[_bridge webSocketModule] sendData:[self resolve:blob] forSocketID:socketID];
+}
+
+RCT_EXPORT_METHOD(createFromParts:(NSArray<NSDictionary<NSString *, id> *> *)parts withId:(NSString *)blobId)
+{
+  NSMutableData *data = [NSMutableData new];
+  for (NSDictionary<NSString *, id> *part in parts) {
+    NSData *partData = [self resolve:part];
+    [data appendData:partData];
+  }
+  [self store:data withId:blobId];
+}
+
+RCT_EXPORT_METHOD(release:(NSString *)blobId)
+{
+  [_blobs removeObjectForKey:blobId];
+}
+
+#pragma mark - RCTURLRequestHandler methods
+
+- (BOOL)canHandleRequest:(NSURLRequest *)request
+{
+  return [request.URL.scheme caseInsensitiveCompare:kBlobUriScheme] == NSOrderedSame;
+}
+
+- (id)sendRequest:(NSURLRequest *)request withDelegate:(id<RCTURLRequestDelegate>)delegate
+{
+  // Lazy setup
+  if (!_queue) {
+    _queue = [NSOperationQueue new];
+    _queue.maxConcurrentOperationCount = 2;
+  }
+
+  __weak __block NSBlockOperation *weakOp;
+  __block NSBlockOperation *op = [NSBlockOperation blockOperationWithBlock:^{
+    NSURLResponse *response = [[NSURLResponse alloc] initWithURL:request.URL
+                                                        MIMEType:nil
+                                           expectedContentLength:-1
+                                                textEncodingName:nil];
+
+    [delegate URLRequest:weakOp didReceiveResponse:response];
+
+    NSURLComponents *components = [[NSURLComponents alloc] initWithURL:request.URL resolvingAgainstBaseURL:NO];
+
+    NSString *blobId = components.path;
+    NSInteger offset = 0;
+    NSInteger size = -1;
+
+    if (components.queryItems) {
+      for (NSURLQueryItem *queryItem in components.queryItems) {
+        if ([queryItem.name isEqualToString:@"offset"]) {
+          offset = [queryItem.value integerValue];
+        }
+        if ([queryItem.name isEqualToString:@"size"]) {
+          size = [queryItem.value integerValue];
+        }
+      }
+    }
+
+    NSData *data;
+    if (blobId) {
+      data = [self resolve:blobId offset:offset size:size];
+    }
+    NSError *error;
+    if (data) {
+      [delegate URLRequest:weakOp didReceiveData:data];
+    } else {
+      error = [[NSError alloc] initWithDomain:NSURLErrorDomain code:NSURLErrorBadURL userInfo:nil];
+    }
+    [delegate URLRequest:weakOp didCompleteWithError:error];
+  }];
+
+  weakOp = op;
+  [_queue addOperation:op];
+  return op;
+}
+
+- (void)cancelRequest:(NSOperation *)op
+{
+  [op cancel];
+}
+
+@end
+
+@implementation _RCTBlobContentHandler {
+  __weak RCTBlobManager *_blobManager;
+}
+
+- (instancetype)initWithBlobManager:(RCTBlobManager *)blobManager
+{
+  if (self = [super init]) {
+    _blobManager = blobManager;
+  }
+  return self;
+}
+
+- (id)processMessage:(id)message forSocketID:(NSNumber *)socketID withType:(NSString *__autoreleasing _Nonnull *)type
+{
+  if (![message isKindOfClass:[NSData class]]) {
+    *type = @"text";
+    return message;
+  }
+
+  *type = @"blob";
+  return @{
+     @"blobId": [_blobManager store:message],
+     @"offset": @0,
+     @"size": @(((NSData *)message).length),
+   };
+}
+
+@end

Libraries/Blob/URL.js

@@ -0,0 +1,69 @@
+/**
+ * Copyright (c) 2013-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule URL
+ * @flow
+ */
+
+'use strict';
+
+const Blob = require('Blob');
+
+const { BlobModule } = require('NativeModules');
+
+let BLOB_URL_PREFIX = null;
+
+if (typeof BlobModule.BLOB_URI_SCHEME === 'string') {
+  BLOB_URL_PREFIX = BlobModule.BLOB_URI_SCHEME + ':';
+  if (typeof BlobModule.BLOB_URI_HOST === 'string') {
+    BLOB_URL_PREFIX += `//${BlobModule.BLOB_URI_HOST}/`;
+  }
+}
+
+/**
+ * To allow Blobs be accessed via `content://` URIs,
+ * you need to register `BlobProvider` as a ContentProvider in your app's `AndroidManifest.xml`:
+ *
+ * ```xml
+ * <manifest>
+ *   <application>
+ *     <provider
+ *       android:name="com.facebook.react.modules.blob.BlobProvider"
+ *       android:authorities="@string/blob_provider_authority"
+ *       android:exported="false"
+ *     />
+ *   </application>
+ * </manifest>
+ * ```
+ * And then define the `blob_provider_authority` string in `res/values/strings.xml`.
+ * Use a dotted name that's entirely unique to your app:
+ *
+ * ```xml
+ * <resources>
+ *   <string name="blob_provider_authority">your.app.package.blobs</string>
+ * </resources>
+ * ```
+ */
+class URL {
+  constructor() {
+    throw new Error('Creating BlobURL objects is not supported yet.');
+  }
+
+  static createObjectURL(blob: Blob) {
+    if (BLOB_URL_PREFIX === null) {
+      throw new Error('Cannot create URL for blob!');
+    }
+    return `${BLOB_URL_PREFIX}${blob.blobId}?offset=${blob.offset}&size=${blob.size}`;
+  }
+
+  static revokeObjectURL(url: string) {
+    // Do nothing.
+  }
+}
+
+module.exports = URL;

Libraries/CameraRoll/CameraRoll.js

@@ -12,7 +12,8 @@
  */
 'use strict';
 
-const {PropTypes, checkPropTypes} = require('React');
+const PropTypes = require('prop-types');
+const {checkPropTypes} = PropTypes;
 const RCTCameraRollManager = require('NativeModules').CameraRollManager;
 
 const createStrictShapeTypeChecker = require('createStrictShapeTypeChecker');
@@ -87,6 +88,9 @@ const getPhotosReturnChecker = createStrictShapeTypeChecker({
           height: PropTypes.number.isRequired,
           width: PropTypes.number.isRequired,
           isStored: PropTypes.bool,
+          // TODO (nivethavadivelu) Need to add changes to Android before
+          // setting it as required
+          playableDuration: PropTypes.number,
         }).isRequired,
         timestamp: PropTypes.number.isRequired,
         location: createStrictShapeTypeChecker({

Libraries/CameraRoll/RCTAssetsLibraryRequestHandler.m

@@ -9,7 +9,7 @@
 
 #import "RCTAssetsLibraryRequestHandler.h"
 
-#import <libkern/OSAtomic.h>
+#import <stdatomic.h>
 
 #import <AssetsLibrary/AssetsLibrary.h>
 #import <MobileCoreServices/MobileCoreServices.h>
@@ -41,13 +41,13 @@ RCT_EXPORT_MODULE()
 - (id)sendRequest:(NSURLRequest *)request
      withDelegate:(id<RCTURLRequestDelegate>)delegate
 {
-  __block volatile uint32_t cancelled = 0;
+  __block atomic_bool cancelled = ATOMIC_VAR_INIT(NO);
   void (^cancellationBlock)(void) = ^{
-    OSAtomicOr32Barrier(1, &cancelled);
+    atomic_store(&cancelled, YES);
   };
 
   [[self assetsLibrary] assetForURL:request.URL resultBlock:^(ALAsset *asset) {
-    if (cancelled) {
+    if (atomic_load(&cancelled)) {
       return;
     }
 
@@ -91,7 +91,7 @@ RCT_EXPORT_MODULE()
       [delegate URLRequest:cancellationBlock didCompleteWithError:error];
     }
   } failureBlock:^(NSError *loadError) {
-    if (cancelled) {
+    if (atomic_load(&cancelled)) {
       return;
     }
     [delegate URLRequest:cancellationBlock didCompleteWithError:loadError];

Libraries/CameraRoll/RCTCameraRoll.xcodeproj/project.pbxproj

@@ -64,6 +64,7 @@
 			indentWidth = 2;
 			sourceTree = "<group>";
 			tabWidth = 2;
+			usesTabs = 0;
 		};
 		58B5115E1A9E6B3D00147676 /* Products */ = {
 			isa = PBXGroup;

Libraries/CameraRoll/RCTCameraRollManager.m

@@ -80,8 +80,8 @@ RCT_EXPORT_MODULE()
 
 @synthesize bridge = _bridge;
 
-NSString *const RCTErrorUnableToLoad = @"E_UNABLE_TO_LOAD";
-NSString *const RCTErrorUnableToSave = @"E_UNABLE_TO_SAVE";
+static NSString *const kErrorUnableToLoad = @"E_UNABLE_TO_LOAD";
+static NSString *const kErrorUnableToSave = @"E_UNABLE_TO_SAVE";
 
 RCT_EXPORT_METHOD(saveToCameraRoll:(NSURLRequest *)request
                   type:(NSString *)type
@@ -93,7 +93,7 @@ RCT_EXPORT_METHOD(saveToCameraRoll:(NSURLRequest *)request
     dispatch_async(dispatch_get_main_queue(), ^{
       [self->_bridge.assetsLibrary writeVideoAtPathToSavedPhotosAlbum:request.URL completionBlock:^(NSURL *assetURL, NSError *saveError) {
         if (saveError) {
-          reject(RCTErrorUnableToSave, nil, saveError);
+          reject(kErrorUnableToSave, nil, saveError);
         } else {
           resolve(assetURL.absoluteString);
         }
@@ -103,7 +103,7 @@ RCT_EXPORT_METHOD(saveToCameraRoll:(NSURLRequest *)request
     [_bridge.imageLoader loadImageWithURLRequest:request
                                         callback:^(NSError *loadError, UIImage *loadedImage) {
       if (loadError) {
-        reject(RCTErrorUnableToLoad, nil, loadError);
+        reject(kErrorUnableToLoad, nil, loadError);
         return;
       }
       // It's unclear if writeImageToSavedPhotosAlbum is thread-safe
@@ -111,7 +111,7 @@ RCT_EXPORT_METHOD(saveToCameraRoll:(NSURLRequest *)request
         [self->_bridge.assetsLibrary writeImageToSavedPhotosAlbum:loadedImage.CGImage metadata:nil completionBlock:^(NSURL *assetURL, NSError *saveError) {
           if (saveError) {
             RCTLogWarn(@"Error saving cropped image: %@", saveError);
-            reject(RCTErrorUnableToSave, nil, saveError);
+            reject(kErrorUnableToSave, nil, saveError);
           } else {
             resolve(assetURL.absoluteString);
           }
@@ -187,6 +187,11 @@ RCT_EXPORT_METHOD(getPhotos:(NSDictionary *)params
           CLLocation *loc = [result valueForProperty:ALAssetPropertyLocation];
           NSDate *date = [result valueForProperty:ALAssetPropertyDate];
           NSString *filename = [result defaultRepresentation].filename;
+          int64_t duration = 0;
+          if ([[result valueForProperty:ALAssetPropertyType] isEqualToString:ALAssetTypeVideo]) {
+            duration = [[result valueForProperty:ALAssetPropertyDuration] intValue];
+          }
+
           [assets addObject:@{
             @"node": @{
               @"type": [result valueForProperty:ALAssetPropertyType],
@@ -197,6 +202,7 @@ RCT_EXPORT_METHOD(getPhotos:(NSDictionary *)params
                 @"height": @(dimensions.height),
                 @"width": @(dimensions.width),
                 @"isStored": @YES,
+                @"playableDuration": @(duration),
               },
               @"timestamp": @(date.timeIntervalSince1970),
               @"location": loc ? @{
@@ -224,7 +230,7 @@ RCT_EXPORT_METHOD(getPhotos:(NSDictionary *)params
     if (error.code != ALAssetsLibraryAccessUserDeniedError) {
       RCTLogError(@"Failure while iterating through asset groups %@", error);
     }
-    reject(RCTErrorUnableToLoad, nil, error);
+    reject(kErrorUnableToLoad, nil, error);
   }];
 }
 

Libraries/Components/ActivityIndicator/ActivityIndicator.js

@@ -20,6 +20,7 @@ const StyleSheet = require('StyleSheet');
 const View = require('View');
 const ViewPropTypes = require('ViewPropTypes');
 
+const createReactClass = require('create-react-class');
 const requireNativeComponent = require('requireNativeComponent');
 
 const GRAY = '#999999';
@@ -36,7 +37,8 @@ type DefaultProps = {
 /**
  * Displays a circular loading indicator.
  */
-const ActivityIndicator = React.createClass({
+const ActivityIndicator = createReactClass({
+  displayName: 'ActivityIndicator',
   mixins: [NativeMethodsMixin],
 
   propTypes: {

Libraries/Components/AppleTV/TVViewPropTypes.js

@@ -10,7 +10,7 @@
  * @flow
  */
 'use strict';
-var PropTypes = require('React').PropTypes;
+var PropTypes = require('prop-types');
 
 /**
  * Additional View properties for Apple TV

Libraries/Components/Button.js

@@ -97,25 +97,25 @@ class Button extends React.Component {
     } = this.props;
     const buttonStyles = [styles.button];
     const textStyles = [styles.text];
-    const Touchable = Platform.OS === 'android' ? TouchableNativeFeedback : TouchableOpacity;
-    if (color && Platform.OS === 'ios') {
-      textStyles.push({color: color});
-    } else if (color) {
-      buttonStyles.push({backgroundColor: color});
+    if (color) {
+      if (Platform.OS === 'ios') {
+        textStyles.push({color: color});
+      } else {
+        buttonStyles.push({backgroundColor: color});
+      }
     }
+    const accessibilityTraits = ['button'];
     if (disabled) {
       buttonStyles.push(styles.buttonDisabled);
       textStyles.push(styles.textDisabled);
+      accessibilityTraits.push('disabled');
     }
     invariant(
       typeof title === 'string',
       'The title prop of a Button must be a string',
     );
     const formattedTitle = Platform.OS === 'android' ? title.toUpperCase() : title;
-    const accessibilityTraits = ['button'];
-    if (disabled) {
-      accessibilityTraits.push('disabled');
-    }
+    const Touchable = Platform.OS === 'android' ? TouchableNativeFeedback : TouchableOpacity;
     return (
       <Touchable
         accessibilityComponentType="button"
@@ -132,32 +132,27 @@ class Button extends React.Component {
   }
 }
 
-// Material design blue from https://material.google.com/style/color.html#color-color-palette
-let defaultBlue = '#2196F3';
-if (Platform.OS === 'ios') {
-  // Measured default tintColor from iOS 10
-  defaultBlue = '#0C42FD';
-}
-
 const styles = StyleSheet.create({
   button: Platform.select({
     ios: {},
     android: {
       elevation: 4,
-      backgroundColor: defaultBlue,
+      // Material design blue from https://material.google.com/style/color.html#color-color-palette
+      backgroundColor: '#2196F3',
       borderRadius: 2,
     },
   }),
   text: Platform.select({
     ios: {
-      color: defaultBlue,
+      // iOS blue from https://developer.apple.com/ios/human-interface-guidelines/visual-design/color/
+      color: '#007AFF',
       textAlign: 'center',
       padding: 8,
       fontSize: 18,
     },
     android: {
-      textAlign: 'center',
       color: 'white',
+      textAlign: 'center',
       padding: 8,
       fontWeight: '500',
     },

Libraries/Components/DatePicker/DatePickerIOS.ios.js

@@ -20,6 +20,7 @@ const StyleSheet = require('StyleSheet');
 const View = require('View');
 const ViewPropTypes = require('ViewPropTypes');
 
+const createReactClass = require('create-react-class');
 const requireNativeComponent = require('requireNativeComponent');
 
 type DefaultProps = {
@@ -36,7 +37,8 @@ type Event = Object;
  * source of truth.
  */
 // $FlowFixMe(>=0.41.0)
-const DatePickerIOS = React.createClass({
+const DatePickerIOS = createReactClass({
+  displayName: 'DatePickerIOS',
   // TOOD: Put a better type for _picker
   _picker: (undefined: ?$FlowFixMe),
 

Libraries/Components/DrawerAndroid/DrawerLayoutAndroid.android.js

@@ -24,6 +24,7 @@ var ViewPropTypes = require('ViewPropTypes');
 
 var DrawerConsts = UIManager.AndroidDrawerLayout.Constants;
 
+var createReactClass = require('create-react-class');
 var dismissKeyboard = require('dismissKeyboard');
 var requireNativeComponent = require('requireNativeComponent');
 
@@ -67,7 +68,8 @@ var DRAWER_STATES = [
  * },
  * ```
  */
-var DrawerLayoutAndroid = React.createClass({
+var DrawerLayoutAndroid = createReactClass({
+  displayName: 'DrawerLayoutAndroid',
   statics: {
     positions: DrawerConsts.DrawerPosition,
   },
@@ -268,7 +270,22 @@ var DrawerLayoutAndroid = React.createClass({
       null
     );
   },
-
+  /**
+  * Closing and opening example
+  * Note: To access the drawer you have to give it a ref. Refs do not work on stateless components
+  * render () {
+  *   this.openDrawer = () => {
+  *     this.refs.DRAWER.openDrawer()
+  *   }
+  *   this.closeDrawer = () => {
+  *     this.refs.DRAWER.closeDrawer()
+  *   }
+  *   return (
+  *     <DrawerLayoutAndroid ref={'DRAWER'}>
+  *     </DrawerLayoutAndroid>
+  *   )
+  * }
+  */
   _getDrawerLayoutHandle: function() {
     return ReactNative.findNodeHandle(this.refs[RK_DRAWER_REF]);
   },

Libraries/Components/Keyboard/Keyboard.js

@@ -38,7 +38,7 @@ type KeyboardEventListener = (e: KeyboardEventData) => void;
 
 // The following object exists for documentation purposes
 // Actual work happens in
-// https://github.com/facebook/react-native/blob/master/Libraries/EventEmitter/NativeEventEmitter.js
+// https://github.com/facebook/react-native/blob/master/Libraries/vendor/emitter/NativeEventEmitter.js
 
 /**
  * `Keyboard` module to control keyboard events.
@@ -100,7 +100,9 @@ let Keyboard = {
    * - `keyboardDidChangeFrame`
    *
    * Note that if you set `android:windowSoftInputMode` to `adjustResize`  or `adjustNothing`,
-   * only `keyboardDidShow` and `keyboardDidHide` events will available on Android.
+   * only `keyboardDidShow` and `keyboardDidHide` events will be available on Android.
+   * `keyboardWillShow` as well as `keyboardWillHide` are generally not available on Android
+   * since there is no native corresponding event.
    *
    * @param {function} callback function to be called when the event fires.
    */
@@ -140,4 +142,3 @@ Keyboard = KeyboardEventEmitter;
 Keyboard.dismiss = dismissKeyboard;
 
 module.exports = Keyboard;
-

Libraries/Components/Keyboard/KeyboardAvoidingView.js

@@ -11,6 +11,7 @@
  */
 'use strict';
 
+const createReactClass = require('create-react-class');
 const Keyboard = require('Keyboard');
 const LayoutAnimation = require('LayoutAnimation');
 const Platform = require('Platform');
@@ -21,13 +22,8 @@ const View = require('View');
 const ViewPropTypes = require('ViewPropTypes');
 
 import type EmitterSubscription from 'EmitterSubscription';
+import type {ViewLayout, ViewLayoutEvent} from 'ViewPropTypes';
 
-type Rect = {
-  x: number,
-  y: number,
-  width: number,
-  height: number,
-};
 type ScreenRect = {
   screenX: number,
   screenY: number,
@@ -40,11 +36,6 @@ type KeyboardChangeEvent = {
   duration?: number,
   easing?: string,
 };
-type LayoutEvent = {
-  nativeEvent: {
-    layout: Rect,
-  }
-};
 
 const viewRef = 'VIEW';
 
@@ -53,7 +44,8 @@ const viewRef = 'VIEW';
  * It can automatically adjust either its position or bottom padding based on the position of the keyboard.
  */
 // $FlowFixMe(>=0.41.0)
-const KeyboardAvoidingView = React.createClass({
+const KeyboardAvoidingView = createReactClass({
+  displayName: 'KeyboardAvoidingView',
   mixins: [TimerMixin],
 
   propTypes: {
@@ -85,7 +77,7 @@ const KeyboardAvoidingView = React.createClass({
   },
 
   subscriptions: ([]: Array<EmitterSubscription>),
-  frame: (null: ?Rect),
+  frame: (null: ?ViewLayout),
 
   relativeKeyboardHeight(keyboardFrame: ScreenRect): number {
     const frame = this.frame;
@@ -121,7 +113,7 @@ const KeyboardAvoidingView = React.createClass({
     this.setState({bottom: height});
   },
 
-  onLayout(event: LayoutEvent) {
+  onLayout(event: ViewLayoutEvent) {
     this.frame = event.nativeEvent.layout;
   },
 

Libraries/Components/LazyRenderer.js

@@ -11,10 +11,12 @@
 'use strict';
 
 var React = require('React');
+var createReactClass = require('create-react-class');
 var PropTypes = require('prop-types');
 var TimerMixin = require('react-timer-mixin');
 
-var LazyRenderer = React.createClass({
+var LazyRenderer = createReactClass({
+  displayName: 'LazyRenderer',
   mixin: [TimerMixin],
 
   propTypes: {

Libraries/Components/MaskedView/MaskedViewIOS.android.js

@@ -6,11 +6,9 @@
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
  *
- * @format
+ * @providesModule MaskedViewIOS
+ * @flow
  */
-
 'use strict';
 
-const asset = require('./test.png');
-
-module.exports = {type: 'foo', asset};
+module.exports = require('UnimplementedView');

Libraries/Components/MaskedView/MaskedViewIOS.ios.js

@@ -0,0 +1,110 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule MaskedViewIOS
+ * @flow
+ */
+
+const PropTypes = require('prop-types');
+const React = require('React');
+const StyleSheet = require('StyleSheet');
+const View = require('View');
+const ViewPropTypes = require('ViewPropTypes');
+const requireNativeComponent = require('requireNativeComponent');
+
+import type { ViewProps } from 'ViewPropTypes';
+
+type Props = ViewProps & {
+  children: any,
+  /**
+   * Should be a React element to be rendered and applied as the
+   * mask for the child element.
+   */
+  maskElement: React.Element<*>,
+};
+
+/**
+ * Renders the child view with a mask specified in the `maskElement` prop.
+ *
+ * ```
+ * import React from 'react';
+ * import { MaskedView, Text, View } from 'react-native';
+ *
+ * class MyMaskedView extends React.Component {
+ *   render() {
+ *     return (
+ *       <MaskedView
+ *         style={{ flex: 1 }}
+ *         maskElement={
+ *           <View style={styles.maskContainerStyle}>
+ *             <Text style={styles.maskTextStyle}>
+ *               Basic Mask
+ *             </Text>
+ *           </View>
+ *         }
+ *       >
+ *         <View style={{ flex: 1, backgroundColor: 'blue' }} />
+ *       </MaskedView>
+ *     );
+ *   }
+ * }
+ * ```
+ *
+ * The above example will render a view with a blue background that fills its
+ * parent, and then mask that view with text that says "Basic Mask".
+ *
+ * The alpha channel of the view rendered by the `maskElement` prop determines how
+ * much of the view's content and background shows through. Fully or partially
+ * opaque pixels allow the underlying content to show through but fully
+ * transparent pixels block that content.
+ *
+ */
+class MaskedViewIOS extends React.Component {
+  props: Props;
+
+  static propTypes = {
+    ...ViewPropTypes,
+    maskElement: PropTypes.element.isRequired,
+  };
+
+  _hasWarnedInvalidRenderMask = false;
+
+  render() {
+    const { maskElement, children, ...otherViewProps } = this.props;
+
+    if (!React.isValidElement(maskElement)) {
+      if (!this._hasWarnedInvalidRenderMask) {
+        console.warn(
+          'MaskedView: Invalid `maskElement` prop was passed to MaskedView. ' +
+            'Expected a React Element. No mask will render.'
+        );
+        this._hasWarnedInvalidRenderMask = true;
+      }
+      return <View {...otherViewProps}>{children}</View>;
+    }
+
+    return (
+      <RCTMaskedView {...otherViewProps}>
+        <View pointerEvents="none" style={StyleSheet.absoluteFill}>
+          {maskElement}
+        </View>
+        {children}
+      </RCTMaskedView>
+    );
+  }
+}
+
+const RCTMaskedView = requireNativeComponent('RCTMaskedView', {
+  name: 'RCTMaskedView',
+  displayName: 'RCTMaskedView',
+  propTypes: {
+    ...ViewPropTypes,
+  },
+});
+
+module.exports = MaskedViewIOS;

Libraries/Components/Navigation/NavigatorIOS.ios.js

@@ -23,6 +23,7 @@ var TVEventHandler = require('TVEventHandler');
 var View = require('View');
 var ViewPropTypes = require('ViewPropTypes');
 
+var createReactClass = require('create-react-class');
 var invariant = require('fbjs/lib/invariant');
 var logError = require('logError');
 var requireNativeComponent = require('requireNativeComponent');
@@ -129,7 +130,7 @@ type Event = Object;
  * [`UINavigationController`](https://developer.apple.com/library/ios/documentation/UIKit/Reference/UINavigationController_Class/),
  * enabling you to implement a navigation stack. It works exactly the same as it
  * would on a native app using `UINavigationController`, providing the same
- * animations and behavior from UIKIt.
+ * animations and behavior from UIKit.
  *
  * As the name implies, it is only available on iOS. Take a look at
  * [`React Navigation`](https://reactnavigation.org/) for a cross-platform
@@ -304,7 +305,8 @@ type Event = Object;
  * is pushed.
  *
  */
-var NavigatorIOS = React.createClass({
+var NavigatorIOS = createReactClass({
+  displayName: 'NavigatorIOS',
 
   propTypes: {
 
@@ -434,7 +436,7 @@ var NavigatorIOS = React.createClass({
       titleTextColor: PropTypes.string,
 
        /**
-       * Bboolean value that indicates whether the navigation bar is
+       * Boolean value that indicates whether the navigation bar is
        * translucent.
        */
       translucent: PropTypes.bool,

Libraries/Components/Picker/PickerAndroid.android.js

@@ -14,6 +14,7 @@
 
 var ColorPropType = require('ColorPropType');
 var React = require('React');
+var ReactPropTypes = require('prop-types');
 var StyleSheet = require('StyleSheet');
 var StyleSheetPropType = require('StyleSheetPropType');
 const ViewPropTypes = require('ViewPropTypes');
@@ -22,8 +23,6 @@ var ViewStylePropTypes = require('ViewStylePropTypes');
 var processColor = require('processColor');
 var requireNativeComponent = require('requireNativeComponent');
 
-var ReactPropTypes = React.PropTypes;
-
 var REF_PICKER = 'picker';
 var MODE_DROPDOWN = 'dropdown';
 
@@ -53,7 +52,7 @@ class PickerAndroid extends React.Component {
   static propTypes = {
     ...ViewPropTypes,
     style: pickerStyleType,
-    selectedValue: React.PropTypes.any,
+    selectedValue: ReactPropTypes.any,
     enabled: ReactPropTypes.bool,
     mode: ReactPropTypes.oneOf(['dialog', 'dropdown']),
     onValueChange: ReactPropTypes.func,

Libraries/Components/Picker/PickerIOS.ios.js

@@ -22,10 +22,12 @@ var View = require('View');
 const ViewPropTypes = require('ViewPropTypes');
 var processColor = require('processColor');
 
+var createReactClass = require('create-react-class');
 var itemStylePropType = StyleSheetPropType(TextStylePropTypes);
 var requireNativeComponent = require('requireNativeComponent');
 
-var PickerIOS = React.createClass({
+var PickerIOS = createReactClass({
+  displayName: 'PickerIOS',
   mixins: [NativeMethodsMixin],
 
   propTypes: {

Libraries/Components/ProgressBarAndroid/ProgressBarAndroid.android.js

@@ -16,6 +16,7 @@ var PropTypes = require('prop-types');
 var ViewPropTypes = require('ViewPropTypes');
 var ColorPropType = require('ColorPropType');
 
+var createReactClass = require('create-react-class');
 var requireNativeComponent = require('requireNativeComponent');
 
 var STYLE_ATTRIBUTES = [
@@ -63,7 +64,8 @@ var indeterminateType = function(props, propName, componentName, ...rest) {
  * },
  * ```
  */
-var ProgressBarAndroid = React.createClass({
+var ProgressBarAndroid = createReactClass({
+  displayName: 'ProgressBarAndroid',
   propTypes: {
     ...ViewPropTypes,
     /**

Libraries/Components/ProgressViewIOS/ProgressViewIOS.ios.js

@@ -18,13 +18,15 @@ var PropTypes = require('prop-types');
 var StyleSheet = require('StyleSheet');
 var ViewPropTypes = require('ViewPropTypes');
 
+var createReactClass = require('create-react-class');
 var requireNativeComponent = require('requireNativeComponent');
 
 /**
  * Use `ProgressViewIOS` to render a UIProgressView on iOS.
  */
 // $FlowFixMe(>=0.41.0)
-var ProgressViewIOS = React.createClass({
+var ProgressViewIOS = createReactClass({
+  displayName: 'ProgressViewIOS',
   mixins: [NativeMethodsMixin],
 
   propTypes: {

Libraries/Components/RefreshControl/RefreshControl.js

@@ -18,6 +18,7 @@ const React = require('React');
 const PropTypes = require('prop-types');
 const ViewPropTypes = require('ViewPropTypes');
 
+const createReactClass = require('create-react-class');
 const requireNativeComponent = require('requireNativeComponent');
 
 if (Platform.OS === 'android') {
@@ -72,7 +73,8 @@ if (Platform.OS === 'android') {
  * in the `onRefresh` function otherwise the refresh indicator will stop immediately.
  */
 // $FlowFixMe(>=0.41.0)
-const RefreshControl = React.createClass({
+const RefreshControl = createReactClass({
+  displayName: 'RefreshControl',
   statics: {
     SIZE: RefreshLayoutConsts.SIZE,
   },

Libraries/Components/ScrollView/ScrollView.js

@@ -27,11 +27,15 @@ const View = require('View');
 const ViewPropTypes = require('ViewPropTypes');
 const ViewStylePropTypes = require('ViewStylePropTypes');
 
+const createReactClass = require('create-react-class');
 const dismissKeyboard = require('dismissKeyboard');
 const flattenStyle = require('flattenStyle');
 const invariant = require('fbjs/lib/invariant');
 const processDecelerationRate = require('processDecelerationRate');
 const requireNativeComponent = require('requireNativeComponent');
+const warning = require('fbjs/lib/warning');
+
+import type {NativeMethodsMixinType} from 'ReactNativeTypes';
 
 /**
  * Component that wraps platform ScrollView while providing
@@ -69,7 +73,8 @@ const requireNativeComponent = require('requireNativeComponent');
  * supports out of the box.
  */
 // $FlowFixMe(>=0.41.0)
-const ScrollView = React.createClass({
+const ScrollView = createReactClass({
+  displayName: 'ScrollView',
   propTypes: {
     ...ViewPropTypes,
     /**
@@ -196,16 +201,21 @@ const ScrollView = React.createClass({
     /**
      * Determines whether the keyboard gets dismissed in response to a drag.
      *
+     * *Cross platform*
+     *
      *   - `'none'` (the default), drags do not dismiss the keyboard.
      *   - `'on-drag'`, the keyboard is dismissed when a drag begins.
+     *
+     * *iOS Only*
+     *
      *   - `'interactive'`, the keyboard is dismissed interactively with the drag and moves in
      *     synchrony with the touch; dragging upwards cancels the dismissal.
      *     On android this is not supported and it will have the same behavior as 'none'.
      */
     keyboardDismissMode: PropTypes.oneOf([
       'none', // default
-      'interactive',
-      'on-drag',
+      'on-drag', // Cross-platform
+      'interactive', // iOS-only
     ]),
     /**
      * Determines when the keyboard should stay visible after a tap.
@@ -230,16 +240,19 @@ const ScrollView = React.createClass({
      * @platform ios
      */
     minimumZoomScale: PropTypes.number,
+    /**
+     * Called when the momentum scroll starts (scroll which occurs as the ScrollView glides to a stop).
+     */
+    onMomentumScrollBegin: PropTypes.func,
+    /**
+     * Called when the momentum scroll ends (scroll which occurs as the ScrollView glides to a stop).
+     */
+    onMomentumScrollEnd: PropTypes.func,
     /**
      * Fires at most once per frame during scrolling. The frequency of the
      * events can be controlled using the `scrollEventThrottle` prop.
      */
     onScroll: PropTypes.func,
-    /**
-     * Called when a scrolling animation ends.
-     * @platform ios
-     */
-    onScrollAnimationEnd: PropTypes.func,
     /**
      * Called when scrollable content view of the ScrollView changes.
      *
@@ -254,6 +267,8 @@ const ScrollView = React.createClass({
      * When true, the scroll view stops on multiples of the scroll view's size
      * when scrolling. This can be used for horizontal pagination. The default
      * value is false.
+     *
+     * Note: Vertical pagination is not supported on Android.
      */
     pagingEnabled: PropTypes.bool,
     /**
@@ -311,8 +326,10 @@ const ScrollView = React.createClass({
     /**
      * When set, causes the scroll view to stop at multiples of the value of
      * `snapToInterval`. This can be used for paginating through children
-     * that have lengths smaller than the scroll view. Used in combination
-     * with `snapToAlignment`.
+     * that have lengths smaller than the scroll view. Typically used in
+     * combination with `snapToAlignment` and `decelerationRate="fast"`.
+     * Overrides less configurable `pagingEnabled` prop.
+     *
      * @platform ios
      */
     snapToInterval: PropTypes.number,
@@ -343,7 +360,18 @@ const ScrollView = React.createClass({
      * @platform ios
      */
     zoomScale: PropTypes.number,
-
+    /**
+     * This property specifies how the safe area insets are used to modify the
+     * content area of the scroll view. The default value of this property is
+     * "never". Available on iOS 11 and later.
+     * @platform ios
+     */
+    contentInsetAdjustmentBehavior: PropTypes.oneOf([
+      'automatic',
+      'scrollableAxes',
+      'never', // default
+      'always',
+    ]),
     /**
      * A RefreshControl component, used to provide pull-to-refresh
      * functionality for the ScrollView. Only works for vertical ScrollViews
@@ -388,6 +416,15 @@ const ScrollView = React.createClass({
       'always',
       'never',
     ]),
+    /**
+     * When true, ScrollView will emit updateChildFrames data in scroll events,
+     * otherwise will not compute or emit child frame data.  This only exists
+     * to support legacy issues, `onLayout` should be used instead to retrieve
+     * frame data.
+     * The default value is false.
+     * @platform ios
+     */
+    DEPRECATED_sendUpdatedChildFrames: PropTypes.bool,
   },
 
   mixins: [ScrollResponder.Mixin],
@@ -583,8 +620,8 @@ const ScrollView = React.createClass({
     this._scrollViewRef = ref;
   },
 
-  _innerViewRef: (null: ?View),
-  _setInnerViewRef: function(ref: ?View) {
+  _innerViewRef: (null: ?NativeMethodsMixinType),
+  _setInnerViewRef: function(ref: ?NativeMethodsMixinType) {
     this._innerViewRef = ref;
   },
 
@@ -594,6 +631,10 @@ const ScrollView = React.createClass({
     if (Platform.OS === 'ios') {
       ScrollViewClass = RCTScrollView;
       ScrollContentContainerViewClass = RCTScrollContentView;
+      warning(
+        !this.props.snapToInterval || !this.props.pagingEnabled,
+        'snapToInterval is currently ignored when pagingEnabled is true.'
+      );
     } else if (Platform.OS === 'android') {
       if (this.props.horizontal) {
         ScrollViewClass = AndroidHorizontalScrollView;
@@ -667,7 +708,13 @@ const ScrollView = React.createClass({
         {...contentSizeChangeProps}
         ref={this._setInnerViewRef}
         style={contentContainerStyle}
-        removeClippedSubviews={this.props.removeClippedSubviews}
+        removeClippedSubviews={
+          // Subview clipping causes issues with sticky headers on Android and
+          // would be hard to fix properly in a performant way.
+          Platform.OS === 'android' && hasStickyHeaders ?
+            false :
+            this.props.removeClippedSubviews
+        }
         collapsable={false}>
         {children}
       </ScrollContentContainerViewClass>;
@@ -682,6 +729,9 @@ const ScrollView = React.createClass({
         this.props.alwaysBounceVertical :
         !this.props.horizontal;
 
+    const DEPRECATED_sendUpdatedChildFrames =
+      !!this.props.DEPRECATED_sendUpdatedChildFrames;
+
     const baseStyle = this.props.horizontal ? styles.baseHorizontal : styles.baseVertical;
     const props = {
       ...this.props,
@@ -710,6 +760,7 @@ const ScrollView = React.createClass({
       scrollEventThrottle: hasStickyHeaders ? 1 : this.props.scrollEventThrottle,
       sendMomentumEvents: (this.props.onMomentumScrollBegin || this.props.onMomentumScrollEnd) ?
         true : false,
+      DEPRECATED_sendUpdatedChildFrames,
     };
 
     const { decelerationRate } = this.props;
@@ -806,6 +857,7 @@ if (Platform.OS === 'android') {
     (ScrollView: ReactClass<any>),
     nativeOnlyProps,
   );
+  // $FlowFixMe (bvaughn) Update ComponentInterface in ViewPropTypes to include a string type (for Fiber host components) in a follow-up.
   RCTScrollContentView = requireNativeComponent('RCTScrollContentView', View);
 }
 

Libraries/Components/SegmentedControlIOS/SegmentedControlIOS.ios.js

@@ -17,6 +17,7 @@ var PropTypes = require('prop-types');
 var StyleSheet = require('StyleSheet');
 var ViewPropTypes = require('ViewPropTypes');
 
+var createReactClass = require('create-react-class');
 var requireNativeComponent = require('requireNativeComponent');
 
 type DefaultProps = {
@@ -49,7 +50,8 @@ type Event = Object;
  * ````
  */
 // $FlowFixMe(>=0.41.0)
-var SegmentedControlIOS = React.createClass({
+var SegmentedControlIOS = createReactClass({
+  displayName: 'SegmentedControlIOS',
   mixins: [NativeMethodsMixin],
 
   propTypes: {

Libraries/Components/Slider/Slider.js

@@ -21,6 +21,7 @@ var PropTypes = require('prop-types');
 var StyleSheet = require('StyleSheet');
 var ViewPropTypes = require('ViewPropTypes');
 
+var createReactClass = require('create-react-class');
 var requireNativeComponent = require('requireNativeComponent');
 
 type Event = Object;
@@ -29,7 +30,8 @@ type Event = Object;
  * A component used to select a single value from a range of values.
  */
 // $FlowFixMe(>=0.41.0)
-var Slider = React.createClass({
+var Slider = createReactClass({
+  displayName: 'Slider',
   mixins: [NativeMethodsMixin],
 
   propTypes: {

Libraries/Components/StatusBar/StatusBar.js

@@ -63,7 +63,10 @@ type DefaultProps = {
 /**
  * Merges the prop stack with the default values.
  */
-function mergePropsStack(propsStack: Array<Object>, defaultValues: Object): Object {
+function mergePropsStack(
+  propsStack: Array<Object>,
+  defaultValues: Object
+): Object {
   return propsStack.reduce((prev, cur) => {
     for (const prop in cur) {
       if (cur[prop] != null) {
@@ -80,20 +83,29 @@ function mergePropsStack(propsStack: Array<Object>, defaultValues: Object): Obje
  */
 function createStackEntry(props: any): any {
   return {
-    backgroundColor: props.backgroundColor != null ? {
-      value: props.backgroundColor,
-      animated: props.animated,
-    } : null,
-    barStyle: props.barStyle != null ? {
-      value: props.barStyle,
-      animated: props.animated,
-    } : null,
+    backgroundColor:
+      props.backgroundColor != null
+        ? {
+            value: props.backgroundColor,
+            animated: props.animated,
+          }
+        : null,
+    barStyle:
+      props.barStyle != null
+        ? {
+            value: props.barStyle,
+            animated: props.animated,
+          }
+        : null,
     translucent: props.translucent,
-    hidden: props.hidden != null ? {
-      value: props.hidden,
-      animated: props.animated,
-      transition: props.showHideTransition,
-    } : null,
+    hidden:
+      props.hidden != null
+        ? {
+            value: props.hidden,
+            animated: props.animated,
+            transition: props.showHideTransition,
+          }
+        : null,
     networkActivityIndicatorVisible: props.networkActivityIndicatorVisible,
   };
 }
@@ -141,7 +153,7 @@ class StatusBar extends React.Component {
   props: {
     hidden?: boolean,
     animated?: boolean,
-    backgroundColor?: $FlowFixMe,
+    backgroundColor?: string,
     translucent?: boolean,
     barStyle?: 'default' | 'light-content' | 'dark-content',
     networkActivityIndicatorVisible?: boolean,
@@ -215,7 +227,9 @@ class StatusBar extends React.Component {
    */
   static setNetworkActivityIndicatorVisible(visible: boolean) {
     if (Platform.OS !== 'ios') {
-      console.warn('`setNetworkActivityIndicatorVisible` is only available on iOS');
+      console.warn(
+        '`setNetworkActivityIndicatorVisible` is only available on iOS'
+      );
       return;
     }
     StatusBar._defaultProps.networkActivityIndicatorVisible = visible;
@@ -276,11 +290,7 @@ class StatusBar extends React.Component {
     /**
      * Sets the color of the status bar text.
      */
-    barStyle: PropTypes.oneOf([
-      'default',
-      'light-content',
-      'dark-content',
-    ]),
+    barStyle: PropTypes.oneOf(['default', 'light-content', 'dark-content']),
     /**
      * If the network activity indicator should be visible.
      *
@@ -293,10 +303,7 @@ class StatusBar extends React.Component {
      *
      * @platform ios
      */
-    showHideTransition: PropTypes.oneOf([
-      'fade',
-      'slide',
-    ]),
+    showHideTransition: PropTypes.oneOf(['fade', 'slide']),
   };
 
   static defaultProps = {
@@ -343,38 +350,52 @@ class StatusBar extends React.Component {
     clearImmediate(StatusBar._updateImmediate);
     StatusBar._updateImmediate = setImmediate(() => {
       const oldProps = StatusBar._currentValues;
-      const mergedProps = mergePropsStack(StatusBar._propsStack, StatusBar._defaultProps);
+      const mergedProps = mergePropsStack(
+        StatusBar._propsStack,
+        StatusBar._defaultProps
+      );
 
       // Update the props that have changed using the merged values from the props stack.
       if (Platform.OS === 'ios') {
-        if (!oldProps || oldProps.barStyle.value !== mergedProps.barStyle.value) {
+        if (
+          !oldProps ||
+          oldProps.barStyle.value !== mergedProps.barStyle.value
+        ) {
           StatusBarManager.setStyle(
             mergedProps.barStyle.value,
-            mergedProps.barStyle.animated,
+            mergedProps.barStyle.animated
           );
         }
         if (!oldProps || oldProps.hidden.value !== mergedProps.hidden.value) {
           StatusBarManager.setHidden(
             mergedProps.hidden.value,
-            mergedProps.hidden.animated ?
-              mergedProps.hidden.transition :
-              'none',
+            mergedProps.hidden.animated ? mergedProps.hidden.transition : 'none'
           );
         }
 
-        if (!oldProps || oldProps.networkActivityIndicatorVisible !== mergedProps.networkActivityIndicatorVisible) {
+        if (
+          !oldProps ||
+          oldProps.networkActivityIndicatorVisible !==
+            mergedProps.networkActivityIndicatorVisible
+        ) {
           StatusBarManager.setNetworkActivityIndicatorVisible(
             mergedProps.networkActivityIndicatorVisible
           );
         }
       } else if (Platform.OS === 'android') {
-        if (!oldProps || oldProps.barStyle.value !== mergedProps.barStyle.value) {
+        if (
+          !oldProps ||
+          oldProps.barStyle.value !== mergedProps.barStyle.value
+        ) {
           StatusBarManager.setStyle(mergedProps.barStyle.value);
         }
-        if (!oldProps || oldProps.backgroundColor.value !== mergedProps.backgroundColor.value) {
+        if (
+          !oldProps ||
+          oldProps.backgroundColor.value !== mergedProps.backgroundColor.value
+        ) {
           StatusBarManager.setColor(
             processColor(mergedProps.backgroundColor.value),
-            mergedProps.backgroundColor.animated,
+            mergedProps.backgroundColor.animated
           );
         }
         if (!oldProps || oldProps.hidden.value !== mergedProps.hidden.value) {

Libraries/Components/Switch/Switch.js

@@ -19,6 +19,7 @@ const PropTypes = require('prop-types');
 var StyleSheet = require('StyleSheet');
 const ViewPropTypes = require('ViewPropTypes');
 
+var createReactClass = require('create-react-class');
 var requireNativeComponent = require('requireNativeComponent');
 
 type DefaultProps = {
@@ -38,7 +39,8 @@ type DefaultProps = {
  * @keyword toggle
  */
 // $FlowFixMe(>=0.41.0)
-var Switch = React.createClass({
+var Switch = createReactClass({
+  displayName: 'Switch',
   propTypes: {
     ...ViewPropTypes,
     /**

Libraries/Components/TextInput/TextInput.js

@@ -17,6 +17,7 @@ const EventEmitter = require('EventEmitter');
 const NativeMethodsMixin = require('NativeMethodsMixin');
 const Platform = require('Platform');
 const React = require('React');
+const createReactClass = require('create-react-class');
 const PropTypes = require('prop-types');
 const ReactNative = require('ReactNative');
 const StyleSheet = require('StyleSheet');
@@ -168,7 +169,8 @@ const DataDetectorTypes = [
  *
  */
 // $FlowFixMe(>=0.41.0)
-const TextInput = React.createClass({
+const TextInput = createReactClass({
+  displayName: 'TextInput',
   statics: {
     /* TODO(brentvatne) docs are needed for this */
     State: TextInputState,

Libraries/Components/TextInput/TextInputState.js

@@ -53,7 +53,7 @@ var TextInputState = {
   },
 
   /**
-   * @param {number} textFieldID id of the text field to focus
+   * @param {number} textFieldID id of the text field to unfocus
    * Unfocuses the specified text field
    * noop if it wasn't focused
    */

Libraries/Components/ToolbarAndroid/ToolbarAndroid.android.js

@@ -20,6 +20,7 @@ var UIManager = require('UIManager');
 var ViewPropTypes = require('ViewPropTypes');
 var ColorPropType = require('ColorPropType');
 
+var createReactClass = require('create-react-class');
 var requireNativeComponent = require('requireNativeComponent');
 var resolveAssetSource = require('resolveAssetSource');
 
@@ -65,7 +66,8 @@ var optionalImageSource = PropTypes.oneOfType([
  *
  * [0]: https://developer.android.com/reference/android/support/v7/widget/Toolbar.html
  */
-var ToolbarAndroid = React.createClass({
+var ToolbarAndroid = createReactClass({
+  displayName: 'ToolbarAndroid',
   mixins: [NativeMethodsMixin],
 
   propTypes: {

Libraries/Components/Touchable/TouchableBounce.js

@@ -15,6 +15,7 @@ var Animated = require('Animated');
 var EdgeInsetsPropType = require('EdgeInsetsPropType');
 var NativeMethodsMixin = require('NativeMethodsMixin');
 var React = require('React');
+var createReactClass = require('create-react-class');
 var PropTypes = require('prop-types');
 var Touchable = require('Touchable');
 
@@ -35,7 +36,8 @@ var PRESS_RETENTION_OFFSET = {top: 20, left: 20, right: 20, bottom: 30};
  * interesting interactions such as `handleTouchablePress`.
  */
 // $FlowFixMe(>=0.41.0)
-var TouchableBounce = React.createClass({
+var TouchableBounce = createReactClass({
+  displayName: 'TouchableBounce',
   mixins: [Touchable.Mixin, NativeMethodsMixin],
 
   propTypes: {

Libraries/Components/Touchable/TouchableHighlight.js

@@ -7,37 +7,36 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule TouchableHighlight
- * @noflow
+ * @flow
  */
 'use strict';
 
-// Note (avik): add @flow when Flow supports spread properties in propTypes
-
-var ColorPropType = require('ColorPropType');
-var NativeMethodsMixin = require('NativeMethodsMixin');
+const ColorPropType = require('ColorPropType');
+const NativeMethodsMixin = require('NativeMethodsMixin');
 const PropTypes = require('prop-types');
-var React = require('React');
-var ReactNativeViewAttributes = require('ReactNativeViewAttributes');
-var StyleSheet = require('StyleSheet');
-var TimerMixin = require('react-timer-mixin');
-var Touchable = require('Touchable');
-var TouchableWithoutFeedback = require('TouchableWithoutFeedback');
-var View = require('View');
+const React = require('React');
+const ReactNativeViewAttributes = require('ReactNativeViewAttributes');
+const StyleSheet = require('StyleSheet');
+const TimerMixin = require('react-timer-mixin');
+const Touchable = require('Touchable');
+const TouchableWithoutFeedback = require('TouchableWithoutFeedback');
+const View = require('View');
 const ViewPropTypes = require('ViewPropTypes');
 
-var ensureComponentIsNative = require('ensureComponentIsNative');
-var ensurePositiveDelayProps = require('ensurePositiveDelayProps');
-var keyOf = require('fbjs/lib/keyOf');
-var merge = require('merge');
+const createReactClass = require('create-react-class');
+const ensureComponentIsNative = require('ensureComponentIsNative');
+const ensurePositiveDelayProps = require('ensurePositiveDelayProps');
+const keyOf = require('fbjs/lib/keyOf');
+const merge = require('merge');
 
-type Event = Object;
+import type {Event} from 'TouchableWithoutFeedback';
 
-var DEFAULT_PROPS = {
+const DEFAULT_PROPS = {
   activeOpacity: 0.85,
   underlayColor: 'black',
 };
 
-var PRESS_RETENTION_OFFSET = {top: 20, left: 20, right: 20, bottom: 30};
+const PRESS_RETENTION_OFFSET = {top: 20, left: 20, right: 20, bottom: 30};
 
 /**
  * A wrapper for making views respond properly to touches.
@@ -68,7 +67,8 @@ var PRESS_RETENTION_OFFSET = {top: 20, left: 20, right: 20, bottom: 30};
  * ```
  */
 
-var TouchableHighlight = React.createClass({
+var TouchableHighlight = createReactClass({
+  displayName: 'TouchableHighlight',
   propTypes: {
     ...TouchableWithoutFeedback.propTypes,
     /**
@@ -108,7 +108,6 @@ var TouchableHighlight = React.createClass({
      * @platform ios
      */
     tvParallaxProperties: PropTypes.object,
-
   },
 
   mixins: [NativeMethodsMixin, TimerMixin, Touchable.Mixin],

Libraries/Components/Touchable/TouchableNativeFeedback.android.js

@@ -18,6 +18,7 @@ var Touchable = require('Touchable');
 var TouchableWithoutFeedback = require('TouchableWithoutFeedback');
 var UIManager = require('UIManager');
 
+var createReactClass = require('create-react-class');
 var ensurePositiveDelayProps = require('ensurePositiveDelayProps');
 var processColor = require('processColor');
 
@@ -70,7 +71,8 @@ var PRESS_RETENTION_OFFSET = {top: 20, left: 20, right: 20, bottom: 30};
  * ```
  */
 
-var TouchableNativeFeedback = React.createClass({
+var TouchableNativeFeedback = createReactClass({
+  displayName: 'TouchableNativeFeedback',
   propTypes: {
     ...TouchableWithoutFeedback.propTypes,
 

Libraries/Components/Touchable/TouchableOpacity.js

@@ -22,6 +22,7 @@ var TimerMixin = require('react-timer-mixin');
 var Touchable = require('Touchable');
 var TouchableWithoutFeedback = require('TouchableWithoutFeedback');
 
+var createReactClass = require('create-react-class');
 var ensurePositiveDelayProps = require('ensurePositiveDelayProps');
 var flattenStyle = require('flattenStyle');
 
@@ -51,7 +52,8 @@ var PRESS_RETENTION_OFFSET = {top: 20, left: 20, right: 20, bottom: 30};
  * },
  * ```
  */
-var TouchableOpacity = React.createClass({
+var TouchableOpacity = createReactClass({
+  displayName: 'TouchableOpacity',
   mixins: [TimerMixin, Touchable.Mixin, NativeMethodsMixin],
 
   propTypes: {
@@ -61,7 +63,6 @@ var TouchableOpacity = React.createClass({
      * active. Defaults to 0.2.
      */
     activeOpacity: PropTypes.number,
-    focusedOpacity: PropTypes.number,
     /**
      * Apple TV parallax effects
      */
@@ -71,7 +72,6 @@ var TouchableOpacity = React.createClass({
   getDefaultProps: function() {
     return {
       activeOpacity: 0.2,
-      focusedOpacity: 0.7,
     };
   },
 
@@ -163,10 +163,6 @@ var TouchableOpacity = React.createClass({
     );
   },
 
-  _opacityFocused: function() {
-    this.setOpacityTo(this.props.focusedOpacity);
-  },
-
   _getChildStyleOpacityWithDefault: function() {
    var childStyle = flattenStyle(this.props.style) || {};
    return childStyle.opacity == undefined ? 1 : childStyle.opacity;

Libraries/Components/Touchable/TouchableWithoutFeedback.js

@@ -17,6 +17,7 @@ const PropTypes = require('prop-types');
 const TimerMixin = require('react-timer-mixin');
 const Touchable = require('Touchable');
 
+const createReactClass = require('create-react-class');
 const ensurePositiveDelayProps = require('ensurePositiveDelayProps');
 const warning = require('fbjs/lib/warning');
 
@@ -25,7 +26,7 @@ const {
   AccessibilityTraits,
 } = require('ViewAccessibility');
 
-type Event = Object;
+export type Event = Object;
 
 const PRESS_RETENTION_OFFSET = {top: 20, left: 20, right: 20, bottom: 30};
 
@@ -36,8 +37,8 @@ const PRESS_RETENTION_OFFSET = {top: 20, left: 20, right: 20, bottom: 30};
  * TouchableWithoutFeedback supports only one child.
  * If you wish to have several child components, wrap them in a View.
  */
-// $FlowFixMe(>=0.41.0)
-const TouchableWithoutFeedback = React.createClass({
+const TouchableWithoutFeedback = createReactClass({
+  displayName: 'TouchableWithoutFeedback',
   mixins: [TimerMixin, Touchable.Mixin],
 
   propTypes: {
@@ -58,8 +59,15 @@ const TouchableWithoutFeedback = React.createClass({
      * that steals the responder lock).
      */
     onPress: PropTypes.func,
+    /**
+    * Called as soon as the touchable element is pressed and invoked even before onPress.
+    * This can be useful when making network requests.
+    */
     onPressIn: PropTypes.func,
-    onPressOut: PropTypes.func,
+    /**
+    * Called as soon as the touch is released even before onPress.
+    */
+     onPressOut: PropTypes.func,
     /**
      * Invoked on mount and layout changes with
      *
@@ -88,6 +96,7 @@ const TouchableWithoutFeedback = React.createClass({
      * reactivated! Move it back and forth several times while the scroll view
      * is disabled. Ensure you pass in a constant to reduce memory allocations.
      */
+    // $FlowFixMe: Expected a React PropType instead
     pressRetentionOffset: EdgeInsetsPropType,
     /**
      * This defines how far your touch can start away from the button. This is
@@ -97,6 +106,7 @@ const TouchableWithoutFeedback = React.createClass({
      * of sibling views always takes precedence if a touch hits two overlapping
      * views.
      */
+    // $FlowFixMe: Expected a React PropType instead
     hitSlop: EdgeInsetsPropType,
   },
 

Libraries/Components/Touchable/__tests__/TouchableHighlight-test.js

@@ -8,8 +8,6 @@
  */
 'use strict';
 
-jest.disableAutomock();
-
 const React = require('React');
 const ReactTestRenderer = require('react-test-renderer');
 const Text = require('Text');

Libraries/Components/View/PlatformViewPropTypes.android.js

@@ -6,8 +6,8 @@
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
  *
+ * @providesModule PlatformViewPropTypes
  * @flow
  */
-'use strict';
 
-module.exports = 0xFB0BD1E5;
+module.export = {};

Libraries/Components/View/PlatformViewPropTypes.ios.js

@@ -0,0 +1,20 @@
+/**
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule PlatformViewPropTypes
+ * @flow
+ */
+
+const Platform = require('Platform');
+
+var TVViewPropTypes = {};
+if (Platform.isTVOS) {
+  TVViewPropTypes = require('TVViewPropTypes');
+}
+
+module.exports = TVViewPropTypes;

Libraries/Components/View/View.js

@@ -12,26 +12,16 @@
 'use strict';
 
 const NativeMethodsMixin = require('NativeMethodsMixin');
-const NativeModules = require('NativeModules');
 const Platform = require('Platform');
 const PropTypes = require('prop-types');
 const React = require('React');
-const ReactNativeFeatureFlags = require('ReactNativeFeatureFlags');
 const ReactNativeStyleAttributes = require('ReactNativeStyleAttributes');
 const ReactNativeViewAttributes = require('ReactNativeViewAttributes');
 const ViewPropTypes = require('ViewPropTypes');
 
+const createReactClass = require('create-react-class');
 const invariant = require('fbjs/lib/invariant');
 const requireNativeComponent = require('requireNativeComponent');
-const warning = require('fbjs/lib/warning');
-
-const {
-  AccessibilityComponentTypes,
-  AccessibilityTraits,
-} = require('ViewAccessibility');
-
-const forceTouchAvailable = (NativeModules.PlatformConstants &&
-  NativeModules.PlatformConstants.forceTouchAvailable) || false;
 
 import type {ViewProps} from 'ViewPropTypes';
 
@@ -84,7 +74,8 @@ export type Props = ViewProps;
  *   - `touches` - Array of all current touches on the screen.
  */
 // $FlowFixMe(>=0.41.0)
-const View = React.createClass({
+const View = createReactClass({
+  displayName: 'View',
   // TODO: We should probably expose the mixins, viewConfig, and statics publicly. For example,
   // one of the props is of type AccessibilityComponentType. That is defined as a const[] above,
   // but it is not rendered by the docs, since `statics` below is not rendered. So its Possible
@@ -94,18 +85,9 @@ const View = React.createClass({
   // `propTypes` should not be accessed directly on View since this wrapper only
   // exists for DEV mode. However it's important for them to be declared.
   // If the object passed to `createClass` specifies `propTypes`, Flow will
-  // create a static type from it. This property will be over-written below with
-  // a warn-on-use getter though.
-  // TODO (bvaughn) Remove the warn-on-use comment after April 1.
+  // create a static type from it.
   propTypes: ViewPropTypes,
 
-  // ReactElementValidator will (temporarily) use this private accessor when
-  // detected to avoid triggering the warning message.
-  // TODO (bvaughn) Remove this after April 1 ReactNative RC is tagged.
-  statics: {
-    __propTypesSecretDontUseThesePlease: ViewPropTypes
-  },
-
   /**
    * `NativeMethodsMixin` will look for this when invoking `setNativeProps`. We
    * make `this` look like an actual native component class.
@@ -132,70 +114,6 @@ const View = React.createClass({
   },
 });
 
-// Warn about unsupported use of View static properties as these will no longer
-// be supported with React fiber. This warning message will go away in the next
-// ReactNative release. Use defineProperty() rather than createClass() statics
-// because the mixin process auto-triggers the 1-time warning message.
-// TODO (bvaughn) Remove this after April 1 ReactNative RC is tagged.
-function mixinStatics (target) {
-  let warnedAboutAccessibilityTraits = false;
-  let warnedAboutAccessibilityComponentType = false;
-  let warnedAboutForceTouchAvailable = false;
-  let warnedAboutPropTypes = false;
-
-  // $FlowFixMe https://github.com/facebook/flow/issues/285
-  Object.defineProperty(target, 'AccessibilityTraits', {
-    get: function() {
-      warning(
-        warnedAboutAccessibilityTraits,
-        'View.AccessibilityTraits has been deprecated and will be ' +
-        'removed in a future version of ReactNative. Use ' +
-        'ViewAccessibility.AccessibilityTraits instead.'
-      );
-      warnedAboutAccessibilityTraits = true;
-      return AccessibilityTraits;
-    }
-  });
-  // $FlowFixMe https://github.com/facebook/flow/issues/285
-  Object.defineProperty(target, 'AccessibilityComponentType', {
-    get: function() {
-      warning(
-        warnedAboutAccessibilityComponentType,
-        'View.AccessibilityComponentType has been deprecated and will be ' +
-        'removed in a future version of ReactNative. Use ' +
-        'ViewAccessibility.AccessibilityComponentTypes instead.'
-      );
-      warnedAboutAccessibilityComponentType = true;
-      return AccessibilityComponentTypes;
-    }
-  });
-  // $FlowFixMe https://github.com/facebook/flow/issues/285
-  Object.defineProperty(target, 'forceTouchAvailable', {
-    get: function() {
-      warning(
-        warnedAboutForceTouchAvailable,
-        'View.forceTouchAvailable has been deprecated and will be removed ' +
-        'in a future version of ReactNative. Use ' +
-        'NativeModules.PlatformConstants.forceTouchAvailable instead.'
-      );
-      warnedAboutForceTouchAvailable = true;
-      return forceTouchAvailable;
-    }
-  });
-  // $FlowFixMe https://github.com/facebook/flow/issues/285
-  Object.defineProperty(target, 'propTypes', {
-    get: function() {
-      warning(
-        warnedAboutPropTypes,
-        'View.propTypes has been deprecated and will be removed in a future ' +
-        'version of ReactNative. Use ViewPropTypes instead.'
-      );
-      warnedAboutPropTypes = true;
-      return ViewPropTypes;
-    }
-  });
-}
-
 const RCTView = requireNativeComponent('RCTView', View, {
   nativeOnly: {
     nativeBackgroundAndroid: true,
@@ -216,21 +134,10 @@ if (__DEV__) {
   }
 }
 
-// TODO (bvaughn) Remove feature flags once all static View accessors are gone.
-// We temporarily wrap fiber native views with the create-class View above,
-// Because external code sometimes accesses static properties of this view.
 let ViewToExport = RCTView;
-if (
-  __DEV__ ||
-  ReactNativeFeatureFlags.useFiber
-) {
-  mixinStatics(View);
+if (__DEV__) {
   ViewToExport = View;
-} else {
-  // TODO (bvaughn) Remove this mixin once all static View accessors are gone.
-  mixinStatics((RCTView : any));
 }
 
-// TODO (bvaughn) Temporarily mask Flow warnings for View property accesses.
-// We're wrapping the string type (Fiber) for now to avoid any actual problems.
-module.exports = ((ViewToExport : any) : typeof View);
+// No one should depend on the DEV-mode createClass View wrapper.
+module.exports = ((ViewToExport : any) : typeof RCTView);

Libraries/Components/View/ViewPropTypes.js

@@ -12,21 +12,16 @@
 'use strict';
 
 const EdgeInsetsPropType = require('EdgeInsetsPropType');
-const Platform = require('Platform');
+const PlatformViewPropTypes = require('PlatformViewPropTypes');
+const PropTypes = require('prop-types');
 const StyleSheetPropType = require('StyleSheetPropType');
 const ViewStylePropTypes = require('ViewStylePropTypes');
 
-const { PropTypes } = require('React');
 const {
   AccessibilityComponentTypes,
   AccessibilityTraits,
 } = require('ViewAccessibility');
 
-var TVViewPropTypes = {};
-if (Platform.isTVOS) {
-  TVViewPropTypes = require('TVViewPropTypes');
-}
-
 import type {
   AccessibilityComponentType,
   AccessibilityTrait,
@@ -36,6 +31,19 @@ import type {TVViewProps} from 'TVViewPropTypes';
 
 const stylePropType = StyleSheetPropType(ViewStylePropTypes);
 
+export type ViewLayout = {
+  x: number,
+  y: number,
+  width: number,
+  height: number,
+}
+
+export type ViewLayoutEvent = {
+  nativeEvent: {
+    layout: ViewLayout,
+  }
+}
+
 // There's no easy way to create a different type if(Platform.isTVOS):
 // so we must include TVViewProps
 export type ViewProps = {
@@ -50,6 +58,7 @@ export type ViewProps = {
   onMagicTap?: Function,
   testID?: string,
   nativeID?: string,
+  onLayout?: (event: ViewLayoutEvent) => void,
   onResponderGrant?: Function,
   onResponderMove?: Function,
   onResponderReject?: Function,
@@ -71,7 +80,7 @@ export type ViewProps = {
 } & TVViewProps;
 
 module.exports = {
-  ...TVViewPropTypes,
+  ...PlatformViewPropTypes,
 
   /**
    * When `true`, indicates that the view is an accessibility element. By default,
@@ -218,8 +227,6 @@ module.exports = {
    * Used to locate this view from native classes.
    *
    * > This disables the 'layout-only view removal' optimization for this view!
-   *
-   * @platform android
    */
   nativeID: PropTypes.string,
 

Libraries/Components/View/ViewStylePropTypes.js

@@ -11,9 +11,9 @@
  */
 'use strict';
 
-var LayoutPropTypes = require('LayoutPropTypes');
-var ReactPropTypes = require('React').PropTypes;
 var ColorPropType = require('ColorPropType');
+var LayoutPropTypes = require('LayoutPropTypes');
+var ReactPropTypes = require('prop-types');
 var ShadowPropTypesIOS = require('ShadowPropTypesIOS');
 var TransformPropTypes = require('TransformPropTypes');
 

Libraries/Components/ViewPager/ViewPagerAndroid.android.js

@@ -75,6 +75,7 @@ class ViewPagerAndroid extends React.Component {
     onPageScrollStateChanged?: Function,
     onPageSelected?: Function,
     pageMargin?: number,
+    peekEnabled?: boolean,
     keyboardDismissMode?: 'none' | 'on-drag',
     scrollEnabled?: boolean,
   };
@@ -137,6 +138,12 @@ class ViewPagerAndroid extends React.Component {
     * The default value is true.
     */
     scrollEnabled: PropTypes.bool,
+
+    /**
+     * Whether enable showing peekFraction or not. If this is true, the preview of
+     * last and next page will show in current screen. Defaults to false.
+     */
+     peekEnabled: PropTypes.bool,
   };
 
   componentDidMount() {

Libraries/Components/WebView/WebView.ios.js

@@ -367,6 +367,10 @@ class WebView extends React.Component {
     ]),
   };
 
+  static defaultProps = {
+    scalesPageToFit: true,
+  };
+
   state = {
     viewState: WebViewState.IDLE,
     lastErrorEvent: (null: ?ErrorEvent),

Libraries/Core/Devtools/__tests__/parseErrorStack-test.js

@@ -9,8 +9,6 @@
 'use strict';
 
 
-jest.disableAutomock();
-
 var parseErrorStack = require('parseErrorStack');
 
 function getFakeError() {

Libraries/Core/Devtools/parseErrorStack.js

@@ -18,20 +18,22 @@ export type StackFrame = {
   methodName: string,
 };
 
-var stacktraceParser = require('stacktrace-parser');
+export type ExtendedError = Error & {
+  framesToPop?: number,
+};
 
-function parseErrorStack(e: Error): Array<StackFrame> {
+function parseErrorStack(e: ExtendedError): Array<StackFrame> {
   if (!e || !e.stack) {
     return [];
   }
 
-  var stack = Array.isArray(e.stack) ? e.stack : stacktraceParser.parse(e.stack);
+  const stacktraceParser = require('stacktrace-parser');
+  const stack = Array.isArray(e.stack) ? e.stack : stacktraceParser.parse(e.stack);
 
-  var framesToPop = typeof e.framesToPop === 'number' ? e.framesToPop : 0;
+  let framesToPop = typeof e.framesToPop === 'number' ? e.framesToPop : 0;
   while (framesToPop--) {
     stack.shift();
   }
-
   return stack;
 }
 

Libraries/Core/ExceptionsManager.js

@@ -11,11 +11,13 @@
  */
 'use strict';
 
+import type {ExtendedError} from 'parseErrorStack';
+
 /**
  * Handles the developer-visible aspect of errors and exceptions
  */
 let exceptionID = 0;
-function reportException(e: Error, isFatal: bool) {
+function reportException(e: ExtendedError, isFatal: bool) {
   const {ExceptionsManager} = require('NativeModules');
   if (ExceptionsManager) {
     const parseErrorStack = require('parseErrorStack');
@@ -84,7 +86,7 @@ function reactConsoleErrorHandler() {
       // (Note: Logic duplicated in polyfills/console.js.)
       return;
     }
-    const error : any = new Error('console.error: ' + str);
+    const error : ExtendedError = new Error('console.error: ' + str);
     error.framesToPop = 1;
     reportException(error, /* isFatal */ false);
   }

Libraries/Core/InitializeCore.js

@@ -13,7 +13,6 @@
 /* eslint-disable strict */
 /* globals window: true */
 
-
 /**
  * Sets up global variables typical in most JavaScript environments.
  *
@@ -41,25 +40,24 @@ const defineLazyObjectProperty = require('defineLazyObjectProperty');
 
 /**
  * Sets an object's property. If a property with the same name exists, this will
- * replace it but maintain its descriptor configuration. By default, the property
- * will replaced with a lazy getter.
+ * replace it but maintain its descriptor configuration. The property will be
+ * replaced with a lazy getter.
  *
- * The original property value will be preserved as `original[PropertyName]` so
- * that, if necessary, it can be restored. For example, if you want to route
+ * In DEV mode the original property value will be preserved as `original[PropertyName]`
+ * so that, if necessary, it can be restored. For example, if you want to route
  * network requests through DevTools (to trace them):
  *
  *   global.XMLHttpRequest = global.originalXMLHttpRequest;
  *
  * @see https://github.com/facebook/react-native/issues/934
  */
-function defineProperty<T>(
+function defineLazyProperty<T>(
   object: Object,
   name: string,
   getValue: () => T,
-  eager?: boolean
 ): void {
   const descriptor = Object.getOwnPropertyDescriptor(object, name);
-  if (descriptor) {
+  if (__DEV__ && descriptor) {
     const backupName = `original${name[0].toUpperCase()}${name.substr(1)}`;
     Object.defineProperty(object, backupName, {
       ...descriptor,
@@ -73,20 +71,15 @@ function defineProperty<T>(
     return;
   }
 
-  if (eager === true) {
-    Object.defineProperty(object, name, {
-      configurable: true,
-      enumerable: enumerable !== false,
-      writable: writable !== false,
-      value: getValue(),
-    });
-  } else {
-    defineLazyObjectProperty(object, name, {
-      get: getValue,
-      enumerable: enumerable !== false,
-      writable: writable !== false,
-    });
-  }
+  defineLazyObjectProperty(object, name, {
+    get: getValue,
+    enumerable: enumerable !== false,
+    writable: writable !== false,
+  });
+}
+
+function polyfillGlobal<T>(name: string, getValue: () => T): void {
+  defineLazyProperty(global, name, getValue);
 }
 
 // Set up process
@@ -96,28 +89,21 @@ if (!global.process.env.NODE_ENV) {
   global.process.env.NODE_ENV = __DEV__ ? 'development' : 'production';
 }
 
-// Set up profile
-const Systrace = require('Systrace');
-Systrace.setEnabled(global.__RCTProfileIsProfiling || false);
+// Setup the Systrace profiling hooks if necessary
+if (global.__RCTProfileIsProfiling) {
+  const Systrace = require('Systrace');
+  Systrace.setEnabled(true);
+}
+
+if (__DEV__ && global.performance === undefined) {
+  const Systrace = require('Systrace');
+  global.performance = Systrace.getUserTimingPolyfill();
+}
 
 // Set up console
 const ExceptionsManager = require('ExceptionsManager');
 ExceptionsManager.installConsoleErrorReporter();
 
-// TODO: Move these around to solve the cycle in a cleaner way
-const BatchedBridge = require('BatchedBridge');
-BatchedBridge.registerLazyCallableModule('Systrace', () => require('Systrace'));
-BatchedBridge.registerLazyCallableModule('JSTimersExecution', () => require('JSTimersExecution'));
-BatchedBridge.registerLazyCallableModule('HeapCapture', () => require('HeapCapture'));
-BatchedBridge.registerLazyCallableModule('SamplingProfiler', () => require('SamplingProfiler'));
-BatchedBridge.registerLazyCallableModule('RCTLog', () => require('RCTLog'));
-
-if (__DEV__) {
-  if (!global.__RCTProfileIsProfiling) {
-    BatchedBridge.registerCallableModule('HMRClient', require('HMRClient'));
-  }
-}
-
 // Set up error handler
 if (!global.__fbDisableExceptionsManager) {
   const handleError = (e, isFatal) => {
@@ -135,9 +121,32 @@ if (!global.__fbDisableExceptionsManager) {
   ErrorUtils.setGlobalHandler(handleError);
 }
 
+// Set up collections
+const _shouldPolyfillCollection = require('_shouldPolyfillES6Collection');
+if (_shouldPolyfillCollection('Map')) {
+  polyfillGlobal('Map', () => require('Map'));
+}
+if (_shouldPolyfillCollection('Set')) {
+  polyfillGlobal('Set', () => require('Set'));
+}
+
+// Set up Promise
+// The native Promise implementation throws the following error:
+// ERROR: Event loop not supported.
+polyfillGlobal('Promise', () => require('Promise'));
+
+// Set up regenerator.
+polyfillGlobal('regeneratorRuntime', () => {
+  // The require just sets up the global, so make sure when we first
+  // invoke it the global does not exist
+  delete global.regeneratorRuntime;
+  require('regenerator-runtime/runtime');
+  return global.regeneratorRuntime;
+});
+
 // Set up timers
 const defineLazyTimer = name => {
-  defineProperty(global, name, () => require('JSTimers')[name]);
+  polyfillGlobal(name, () => require('JSTimers')[name]);
 };
 defineLazyTimer('setTimeout');
 defineLazyTimer('setInterval');
@@ -150,6 +159,20 @@ defineLazyTimer('cancelAnimationFrame');
 defineLazyTimer('requestIdleCallback');
 defineLazyTimer('cancelIdleCallback');
 
+// Set up XHR
+// The native XMLHttpRequest in Chrome dev tools is CORS aware and won't
+// let you fetch anything from the internet
+polyfillGlobal('XMLHttpRequest', () => require('XMLHttpRequest'));
+polyfillGlobal('FormData', () => require('FormData'));
+
+polyfillGlobal('fetch', () => require('fetch').fetch);
+polyfillGlobal('Headers', () => require('fetch').Headers);
+polyfillGlobal('Request', () => require('fetch').Request);
+polyfillGlobal('Response', () => require('fetch').Response);
+polyfillGlobal('WebSocket', () => require('WebSocket'));
+polyfillGlobal('Blob', () => require('Blob'));
+polyfillGlobal('URL', () => require('URL'));
+
 // Set up alert
 if (!global.alert) {
   global.alert = function(text) {
@@ -159,32 +182,6 @@ if (!global.alert) {
   };
 }
 
-// Set up Promise
-// The native Promise implementation throws the following error:
-// ERROR: Event loop not supported.
-defineProperty(global, 'Promise', () => require('Promise'));
-
-// Set up regenerator.
-defineProperty(global, 'regeneratorRuntime', () => {
-  // The require just sets up the global, so make sure when we first
-  // invoke it the global does not exist
-  delete global.regeneratorRuntime;
-  require('regenerator-runtime/runtime');
-  return global.regeneratorRuntime;
-});
-
-// Set up XHR
-// The native XMLHttpRequest in Chrome dev tools is CORS aware and won't
-// let you fetch anything from the internet
-defineProperty(global, 'XMLHttpRequest', () => require('XMLHttpRequest'));
-defineProperty(global, 'FormData', () => require('FormData'));
-
-defineProperty(global, 'fetch', () => require('fetch').fetch);
-defineProperty(global, 'Headers', () => require('fetch').Headers);
-defineProperty(global, 'Request', () => require('fetch').Request);
-defineProperty(global, 'Response', () => require('fetch').Response);
-defineProperty(global, 'WebSocket', () => require('WebSocket'));
-
 // Set up Geolocation
 let navigator = global.navigator;
 if (navigator === undefined) {
@@ -192,38 +189,34 @@ if (navigator === undefined) {
 }
 
 // see https://github.com/facebook/react-native/issues/10881
-defineProperty(navigator, 'product', () => 'ReactNative', true);
-defineProperty(navigator, 'geolocation', () => require('Geolocation'));
+defineLazyProperty(navigator, 'product', () => 'ReactNative');
+defineLazyProperty(navigator, 'geolocation', () => require('Geolocation'));
 
-// Set up collections
-// We can't make these lazy because `Map` checks for `global.Map` (which wouldc
-// not exist if it were lazily defined).
-defineProperty(global, 'Map', () => require('Map'), true);
-defineProperty(global, 'Set', () => require('Set'), true);
+// Just to make sure the JS gets packaged up. Wait until the JS environment has
+// been initialized before requiring them.
+const BatchedBridge = require('BatchedBridge');
+BatchedBridge.registerLazyCallableModule('Systrace', () => require('Systrace'));
+BatchedBridge.registerLazyCallableModule('JSTimers', () => require('JSTimers'));
+BatchedBridge.registerLazyCallableModule('HeapCapture', () => require('HeapCapture'));
+BatchedBridge.registerLazyCallableModule('SamplingProfiler', () => require('SamplingProfiler'));
+BatchedBridge.registerLazyCallableModule('RCTLog', () => require('RCTLog'));
+BatchedBridge.registerLazyCallableModule('RCTDeviceEventEmitter', () => require('RCTDeviceEventEmitter'));
+BatchedBridge.registerLazyCallableModule('RCTNativeAppEventEmitter', () => require('RCTNativeAppEventEmitter'));
+BatchedBridge.registerLazyCallableModule('PerformanceLogger', () => require('PerformanceLogger'));
 
 // Set up devtools
 if (__DEV__) {
   if (!global.__RCTProfileIsProfiling) {
+    BatchedBridge.registerCallableModule('HMRClient', require('HMRClient'));
+
     // not when debugging in chrome
     // TODO(t12832058) This check is broken
     if (!window.document) {
       require('setupDevtools');
     }
 
-    require('RCTDebugComponentOwnership');
-
-    // In order to use Cmd+P to record/dump perf data, we need to make sure
-    // this module is available in the bundle
-    require('RCTRenderingPerf');
-
     // Set up inspector
     const JSInspector = require('JSInspector');
     JSInspector.registerAgent(require('NetworkAgent'));
   }
 }
-
-// Just to make sure the JS gets packaged up. Wait until the JS environment has
-// been initialized before requiring them.
-BatchedBridge.registerLazyCallableModule('RCTDeviceEventEmitter', () => require('RCTDeviceEventEmitter'));
-BatchedBridge.registerLazyCallableModule('RCTNativeAppEventEmitter', () => require('RCTNativeAppEventEmitter'));
-BatchedBridge.registerLazyCallableModule('PerformanceLogger', () => require('PerformanceLogger'));

Libraries/Core/Timers/JSTimers.js

@@ -7,64 +7,44 @@
  * of patent rights can be found in the PATENTS file in the same directory.
  *
  * @providesModule JSTimers
+ * @format
  * @flow
  */
 'use strict';
 
-// Note that the module JSTimers is split into two in order to solve a cycle
-// in dependencies. NativeModules > BatchedBridge > MessageQueue > JSTimersExecution
-const JSTimersExecution = require('JSTimersExecution');
 const Platform = require('Platform');
+const Systrace = require('Systrace');
 
+const invariant = require('fbjs/lib/invariant');
 const {Timing} = require('NativeModules');
-const performanceNow = require('fbjs/lib/performanceNow');
 
-import type {JSTimerType} from 'JSTimersExecution';
+import type {ExtendedError} from 'parseErrorStack';
 
-// Returns a free index if one is available, and the next consecutive index otherwise.
-function _getFreeIndex(): number {
-  let freeIndex = JSTimersExecution.timerIDs.indexOf(null);
-  if (freeIndex === -1) {
-    freeIndex = JSTimersExecution.timerIDs.length;
+let _performanceNow = null;
+function performanceNow() {
+  if (!_performanceNow) {
+    _performanceNow = require('fbjs/lib/performanceNow');
   }
-  return freeIndex;
+  return _performanceNow();
 }
 
-function _allocateCallback(func: Function, type: JSTimerType): number {
-  const id = JSTimersExecution.GUID++;
-  const freeIndex = _getFreeIndex();
-  JSTimersExecution.timerIDs[freeIndex] = id;
-  JSTimersExecution.callbacks[freeIndex] = func;
-  JSTimersExecution.types[freeIndex] = type;
-  if (__DEV__) {
-    const parseErrorStack = require('parseErrorStack');
-    const e = (new Error() : any);
-    e.framesToPop = 1;
-    const stack = parseErrorStack(e);
-    if (stack) {
-      JSTimersExecution.identifiers[freeIndex] = stack.shift();
-    }
-  }
-  return id;
-}
+/**
+ * JS implementation of timer functions. Must be completely driven by an
+ * external clock signal, all that's stored here is timerID, timer type, and
+ * callback.
+ */
 
-function _freeCallback(timerID: number) {
-  // JSTimersExecution.timerIDs contains nulls after timers have been removed;
-  // ignore nulls upfront so indexOf doesn't find them
-  if (timerID == null) {
-    return;
-  }
+export type JSTimerType =
+  | 'setTimeout'
+  | 'setInterval'
+  | 'requestAnimationFrame'
+  | 'setImmediate'
+  | 'requestIdleCallback';
 
-  const index = JSTimersExecution.timerIDs.indexOf(timerID);
-  // See corresponding comment in `callTimers` for reasoning behind this
-  if (index !== -1) {
-    JSTimersExecution._clearIndex(index);
-    const type = JSTimersExecution.types[index];
-    if (type !== 'setImmediate' && type !== 'requestIdleCallback') {
-      Timing.deleteTimer(timerID);
-    }
-  }
-}
+// These timing contants should be kept in sync with the ones in native ios and
+// android `RCTTiming` module.
+const FRAME_DURATION = 1000 / 60;
+const IDLE_CALLBACK_FRAME_DEADLINE = 1;
 
 const MAX_TIMER_DURATION_MS = 60 * 1000;
 const IS_ANDROID = Platform.OS === 'android';
@@ -74,6 +54,180 @@ const ANDROID_LONG_TIMER_MESSAGE =
   'module awake, and timers can only be called when the app is in the foreground. ' +
   'See https://github.com/facebook/react-native/issues/12981 for more info.';
 
+// Parallel arrays
+const callbacks: Array<?Function> = [];
+const types: Array<?JSTimerType> = [];
+const timerIDs: Array<?number> = [];
+let immediates: Array<number> = [];
+let requestIdleCallbacks: Array<number> = [];
+const requestIdleCallbackTimeouts: {[number]: number} = {};
+const identifiers: Array<null | {methodName: string}> = [];
+
+let GUID = 1;
+let errors: ?Array<Error> = null;
+
+let hasEmittedTimeDriftWarning = false;
+
+// Returns a free index if one is available, and the next consecutive index otherwise.
+function _getFreeIndex(): number {
+  let freeIndex = timerIDs.indexOf(null);
+  if (freeIndex === -1) {
+    freeIndex = timerIDs.length;
+  }
+  return freeIndex;
+}
+
+function _allocateCallback(func: Function, type: JSTimerType): number {
+  const id = GUID++;
+  const freeIndex = _getFreeIndex();
+  timerIDs[freeIndex] = id;
+  callbacks[freeIndex] = func;
+  types[freeIndex] = type;
+  if (__DEV__) {
+    const parseErrorStack = require('parseErrorStack');
+    const error: ExtendedError = new Error();
+    error.framesToPop = 1;
+    const stack = parseErrorStack(error);
+    if (stack) {
+      identifiers[freeIndex] = stack.shift();
+    }
+  }
+  return id;
+}
+
+/**
+ * Calls the callback associated with the ID. Also unregister that callback
+ * if it was a one time timer (setTimeout), and not unregister it if it was
+ * recurring (setInterval).
+ */
+function _callTimer(timerID: number, frameTime: number, didTimeout: ?boolean) {
+  require('fbjs/lib/warning')(
+    timerID <= GUID,
+    'Tried to call timer with ID %s but no such timer exists.',
+    timerID,
+  );
+
+  // timerIndex of -1 means that no timer with that ID exists. There are
+  // two situations when this happens, when a garbage timer ID was given
+  // and when a previously existing timer was deleted before this callback
+  // fired. In both cases we want to ignore the timer id, but in the former
+  // case we warn as well.
+  const timerIndex = timerIDs.indexOf(timerID);
+  if (timerIndex === -1) {
+    return;
+  }
+
+  const type = types[timerIndex];
+  const callback = callbacks[timerIndex];
+  if (!callback || !type) {
+    console.error('No callback found for timerID ' + timerID);
+    return;
+  }
+
+  if (__DEV__) {
+    const identifier = identifiers[timerIndex] || {};
+    Systrace.beginEvent('Systrace.callTimer: ' + identifier.methodName);
+  }
+
+  // Clear the metadata
+  if (
+    type === 'setTimeout' ||
+    type === 'setImmediate' ||
+    type === 'requestAnimationFrame' ||
+    type === 'requestIdleCallback'
+  ) {
+    _clearIndex(timerIndex);
+  }
+
+  try {
+    if (
+      type === 'setTimeout' ||
+      type === 'setInterval' ||
+      type === 'setImmediate'
+    ) {
+      callback();
+    } else if (type === 'requestAnimationFrame') {
+      callback(performanceNow());
+    } else if (type === 'requestIdleCallback') {
+      callback({
+        timeRemaining: function() {
+          // TODO: Optimisation: allow running for longer than one frame if
+          // there are no pending JS calls on the bridge from native. This
+          // would require a way to check the bridge queue synchronously.
+          return Math.max(0, FRAME_DURATION - (performanceNow() - frameTime));
+        },
+        didTimeout: !!didTimeout,
+      });
+    } else {
+      console.error('Tried to call a callback with invalid type: ' + type);
+    }
+  } catch (e) {
+    // Don't rethrow so that we can run all timers.
+    if (!errors) {
+      errors = [e];
+    } else {
+      errors.push(e);
+    }
+  }
+
+  if (__DEV__) {
+    Systrace.endEvent();
+  }
+}
+
+/**
+ * Performs a single pass over the enqueued immediates. Returns whether
+ * more immediates are queued up (can be used as a condition a while loop).
+ */
+function _callImmediatesPass() {
+  if (__DEV__) {
+    Systrace.beginEvent('callImmediatesPass()');
+  }
+
+  // The main reason to extract a single pass is so that we can track
+  // in the system trace
+  if (immediates.length > 0) {
+    const passImmediates = immediates.slice();
+    immediates = [];
+
+    // Use for loop rather than forEach as per @vjeux's advice
+    // https://github.com/facebook/react-native/commit/c8fd9f7588ad02d2293cac7224715f4af7b0f352#commitcomment-14570051
+    for (let i = 0; i < passImmediates.length; ++i) {
+      _callTimer(passImmediates[i], 0);
+    }
+  }
+
+  if (__DEV__) {
+    Systrace.endEvent();
+  }
+  return immediates.length > 0;
+}
+
+function _clearIndex(i: number) {
+  timerIDs[i] = null;
+  callbacks[i] = null;
+  types[i] = null;
+  identifiers[i] = null;
+}
+
+function _freeCallback(timerID: number) {
+  // timerIDs contains nulls after timers have been removed;
+  // ignore nulls upfront so indexOf doesn't find them
+  if (timerID == null) {
+    return;
+  }
+
+  const index = timerIDs.indexOf(timerID);
+  // See corresponding comment in `callTimers` for reasoning behind this
+  if (index !== -1) {
+    _clearIndex(index);
+    const type = types[index];
+    if (type !== 'setImmediate' && type !== 'requestIdleCallback') {
+      Timing.deleteTimer(timerID);
+    }
+  }
+}
+
 /**
  * JS implementation of timer functions. Must be completely driven by an
  * external clock signal, all that's stored here is timerID, timer type, and
@@ -84,13 +238,24 @@ const JSTimers = {
    * @param {function} func Callback to be invoked after `duration` ms.
    * @param {number} duration Number of milliseconds.
    */
-  setTimeout: function(func: Function, duration: number, ...args?: any): number {
+  setTimeout: function(
+    func: Function,
+    duration: number,
+    ...args?: any
+  ): number {
     if (__DEV__ && IS_ANDROID && duration > MAX_TIMER_DURATION_MS) {
       console.warn(
-          ANDROID_LONG_TIMER_MESSAGE + '\n' + '(Saw setTimeout with duration ' +
-          duration + 'ms)');
+        ANDROID_LONG_TIMER_MESSAGE +
+          '\n' +
+          '(Saw setTimeout with duration ' +
+          duration +
+          'ms)',
+      );
     }
-    const id = _allocateCallback(() => func.apply(undefined, args), 'setTimeout');
+    const id = _allocateCallback(
+      () => func.apply(undefined, args),
+      'setTimeout',
+    );
     Timing.createTimer(id, duration || 0, Date.now(), /* recurring */ false);
     return id;
   },
@@ -99,13 +264,24 @@ const JSTimers = {
    * @param {function} func Callback to be invoked every `duration` ms.
    * @param {number} duration Number of milliseconds.
    */
-  setInterval: function(func: Function, duration: number, ...args?: any): number {
+  setInterval: function(
+    func: Function,
+    duration: number,
+    ...args?: any
+  ): number {
     if (__DEV__ && IS_ANDROID && duration > MAX_TIMER_DURATION_MS) {
       console.warn(
-          ANDROID_LONG_TIMER_MESSAGE + '\n' + '(Saw setInterval with duration ' +
-          duration + 'ms)');
+        ANDROID_LONG_TIMER_MESSAGE +
+          '\n' +
+          '(Saw setInterval with duration ' +
+          duration +
+          'ms)',
+      );
     }
-    const id = _allocateCallback(() => func.apply(undefined, args), 'setInterval');
+    const id = _allocateCallback(
+      () => func.apply(undefined, args),
+      'setInterval',
+    );
     Timing.createTimer(id, duration || 0, Date.now(), /* recurring */ true);
     return id;
   },
@@ -115,15 +291,18 @@ const JSTimers = {
    * current JavaScript execution loop.
    */
   setImmediate: function(func: Function, ...args?: any) {
-    const id = _allocateCallback(() => func.apply(undefined, args), 'setImmediate');
-    JSTimersExecution.immediates.push(id);
+    const id = _allocateCallback(
+      () => func.apply(undefined, args),
+      'setImmediate',
+    );
+    immediates.push(id);
     return id;
   },
 
   /**
    * @param {function} func Callback to be invoked every frame.
    */
-  requestAnimationFrame: function(func : Function) {
+  requestAnimationFrame: function(func: Function) {
     const id = _allocateCallback(func, 'requestAnimationFrame');
     Timing.createTimer(id, 1, Date.now(), /* recurring */ false);
     return id;
@@ -134,58 +313,58 @@ const JSTimers = {
    * with time remaining in frame.
    * @param {?object} options
    */
-  requestIdleCallback: function(func : Function, options : ?Object) {
-    if (JSTimersExecution.requestIdleCallbacks.length === 0) {
+  requestIdleCallback: function(func: Function, options: ?Object) {
+    if (requestIdleCallbacks.length === 0) {
       Timing.setSendIdleEvents(true);
     }
 
     const timeout = options && options.timeout;
     const id = _allocateCallback(
-      timeout != null ?
-        deadline => {
-          const timeoutId = JSTimersExecution.requestIdleCallbackTimeouts.get(id);
-          if (timeoutId) {
-            JSTimers.clearTimeout(timeoutId);
-            JSTimersExecution.requestIdleCallbackTimeouts.delete(id);
+      timeout != null
+        ? deadline => {
+            const timeoutId = requestIdleCallbackTimeouts[id];
+            if (timeoutId) {
+              JSTimers.clearTimeout(timeoutId);
+              requestIdleCallbackTimeouts[id];
+            }
+            return func(deadline);
           }
-          return func(deadline);
-        } :
-        func,
-      'requestIdleCallback'
+        : func,
+      'requestIdleCallback',
     );
-    JSTimersExecution.requestIdleCallbacks.push(id);
+    requestIdleCallbacks.push(id);
 
     if (timeout != null) {
       const timeoutId = JSTimers.setTimeout(() => {
-        const index = JSTimersExecution.requestIdleCallbacks.indexOf(id);
+        const index = requestIdleCallbacks.indexOf(id);
         if (index > -1) {
-          JSTimersExecution.requestIdleCallbacks.splice(index, 1);
-          JSTimersExecution.callTimer(id, performanceNow(), true);
+          requestIdleCallbacks.splice(index, 1);
+          _callTimer(id, performanceNow(), true);
         }
-        JSTimersExecution.requestIdleCallbackTimeouts.delete(id);
-        if (JSTimersExecution.requestIdleCallbacks.length === 0) {
+        delete requestIdleCallbackTimeouts[id];
+        if (requestIdleCallbacks.length === 0) {
           Timing.setSendIdleEvents(false);
         }
       }, timeout);
-      JSTimersExecution.requestIdleCallbackTimeouts.set(id, timeoutId);
+      requestIdleCallbackTimeouts[id] = timeoutId;
     }
     return id;
   },
 
   cancelIdleCallback: function(timerID: number) {
     _freeCallback(timerID);
-    const index = JSTimersExecution.requestIdleCallbacks.indexOf(timerID);
+    const index = requestIdleCallbacks.indexOf(timerID);
     if (index !== -1) {
-      JSTimersExecution.requestIdleCallbacks.splice(index, 1);
+      requestIdleCallbacks.splice(index, 1);
     }
 
-    const timeoutId = JSTimersExecution.requestIdleCallbackTimeouts.get(timerID);
+    const timeoutId = requestIdleCallbackTimeouts[timerID];
     if (timeoutId) {
       JSTimers.clearTimeout(timeoutId);
-      JSTimersExecution.requestIdleCallbackTimeouts.delete(timerID);
+      delete requestIdleCallbackTimeouts[timerID];
     }
 
-    if (JSTimersExecution.requestIdleCallbacks.length === 0) {
+    if (requestIdleCallbacks.length === 0) {
       Timing.setSendIdleEvents(false);
     }
   },
@@ -200,15 +379,117 @@ const JSTimers = {
 
   clearImmediate: function(timerID: number) {
     _freeCallback(timerID);
-    const index = JSTimersExecution.immediates.indexOf(timerID);
+    const index = immediates.indexOf(timerID);
     if (index !== -1) {
-      JSTimersExecution.immediates.splice(index, 1);
+      immediates.splice(index, 1);
     }
   },
 
   cancelAnimationFrame: function(timerID: number) {
     _freeCallback(timerID);
   },
+
+  /**
+   * This is called from the native side. We are passed an array of timerIDs,
+   * and
+   */
+  callTimers: function(timersToCall: Array<number>) {
+    invariant(
+      timersToCall.length !== 0,
+      'Cannot call `callTimers` with an empty list of IDs.',
+    );
+
+    // $FlowFixMe: optionals do not allow assignment from null
+    errors = null;
+    for (let i = 0; i < timersToCall.length; i++) {
+      _callTimer(timersToCall[i], 0);
+    }
+
+    if (errors) {
+      const errorCount = errors.length;
+      if (errorCount > 1) {
+        // Throw all the other errors in a setTimeout, which will throw each
+        // error one at a time
+        for (let ii = 1; ii < errorCount; ii++) {
+          JSTimers.setTimeout(
+            (error => {
+              throw error;
+            }).bind(null, errors[ii]),
+            0,
+          );
+        }
+      }
+      throw errors[0];
+    }
+  },
+
+  callIdleCallbacks: function(frameTime: number) {
+    if (
+      FRAME_DURATION - (performanceNow() - frameTime) <
+      IDLE_CALLBACK_FRAME_DEADLINE
+    ) {
+      return;
+    }
+
+    // $FlowFixMe: optionals do not allow assignment from null
+    errors = null;
+    if (requestIdleCallbacks.length > 0) {
+      const passIdleCallbacks = requestIdleCallbacks.slice();
+      requestIdleCallbacks = [];
+
+      for (let i = 0; i < passIdleCallbacks.length; ++i) {
+        _callTimer(passIdleCallbacks[i], frameTime);
+      }
+    }
+
+    if (requestIdleCallbacks.length === 0) {
+      Timing.setSendIdleEvents(false);
+    }
+
+    if (errors) {
+      errors.forEach(error =>
+        JSTimers.setTimeout(() => {
+          throw error;
+        }, 0),
+      );
+    }
+  },
+
+  /**
+   * This is called after we execute any command we receive from native but
+   * before we hand control back to native.
+   */
+  callImmediates() {
+    errors = null;
+    while (_callImmediatesPass()) {}
+    if (errors) {
+      errors.forEach(error =>
+        JSTimers.setTimeout(() => {
+          throw error;
+        }, 0),
+      );
+    }
+  },
+
+  /**
+   * Called from native (in development) when environment times are out-of-sync.
+   */
+  emitTimeDriftWarning(warningMessage: string) {
+    if (hasEmittedTimeDriftWarning) {
+      return;
+    }
+    hasEmittedTimeDriftWarning = true;
+    console.warn(warningMessage);
+  },
 };
 
-module.exports = JSTimers;
+if (!Timing) {
+  console.warn("Timing native module is not available, can't set timers.");
+  // $FlowFixMe: we can assume timers are generally available
+  module.exports = ({
+    callImmediates: JSTimers.callImmediates,
+    setImmediate: JSTimers.setImmediate,
+  }: typeof JSTimers);
+} else {
+  module.exports = JSTimers;
+}

Libraries/Core/Timers/JSTimersExecution.js

@@ -1,246 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * @providesModule JSTimersExecution
- * @flow
- */
-'use strict';
-
-const Systrace = require('Systrace');
-
-const invariant = require('fbjs/lib/invariant');
-const performanceNow = require('fbjs/lib/performanceNow');
-const warning = require('fbjs/lib/warning');
-
-// These timing contants should be kept in sync with the ones in native ios and
-// android `RCTTiming` module.
-const FRAME_DURATION = 1000 / 60;
-const IDLE_CALLBACK_FRAME_DEADLINE = 1;
-
-let hasEmittedTimeDriftWarning = false;
-
-export type JSTimerType =
-  'setTimeout' |
-  'setInterval' |
-  'requestAnimationFrame' |
-  'setImmediate' |
-  'requestIdleCallback';
-
-/**
- * JS implementation of timer functions. Must be completely driven by an
- * external clock signal, all that's stored here is timerID, timer type, and
- * callback.
- */
-const JSTimersExecution = {
-  GUID: 1,
-
-  // Parallel arrays
-  callbacks: ([] : Array<?Function>),
-  types: ([] : Array<?JSTimerType>),
-  timerIDs: ([] : Array<?number>),
-  immediates: [],
-  requestIdleCallbacks: [],
-  requestIdleCallbackTimeouts: (new Map() : Map<number, number>),
-  identifiers: ([] : Array<null | {methodName: string}>),
-
-  errors: (null : ?Array<Error>),
-
-  /**
-   * Calls the callback associated with the ID. Also unregister that callback
-   * if it was a one time timer (setTimeout), and not unregister it if it was
-   * recurring (setInterval).
-   */
-  callTimer(timerID: number, frameTime: number, didTimeout: ?boolean) {
-    warning(
-      timerID <= JSTimersExecution.GUID,
-      'Tried to call timer with ID %s but no such timer exists.',
-      timerID
-    );
-
-    // timerIndex of -1 means that no timer with that ID exists. There are
-    // two situations when this happens, when a garbage timer ID was given
-    // and when a previously existing timer was deleted before this callback
-    // fired. In both cases we want to ignore the timer id, but in the former
-    // case we warn as well.
-    const timerIndex = JSTimersExecution.timerIDs.indexOf(timerID);
-    if (timerIndex === -1) {
-      return;
-    }
-
-    const type = JSTimersExecution.types[timerIndex];
-    const callback = JSTimersExecution.callbacks[timerIndex];
-    if (!callback || !type) {
-      console.error('No callback found for timerID ' + timerID);
-      return;
-    }
-
-    if (__DEV__) {
-      const identifier = JSTimersExecution.identifiers[timerIndex] || {};
-      Systrace.beginEvent('Systrace.callTimer: ' + identifier.methodName);
-    }
-
-    // Clear the metadata
-    if (type === 'setTimeout' || type === 'setImmediate' ||
-        type === 'requestAnimationFrame' || type === 'requestIdleCallback') {
-      JSTimersExecution._clearIndex(timerIndex);
-    }
-
-    try {
-      if (type === 'setTimeout' || type === 'setInterval' ||
-          type === 'setImmediate') {
-        callback();
-      } else if (type === 'requestAnimationFrame') {
-        callback(performanceNow());
-      } else if (type === 'requestIdleCallback') {
-        callback({
-          timeRemaining: function() {
-            // TODO: Optimisation: allow running for longer than one frame if
-            // there are no pending JS calls on the bridge from native. This
-            // would require a way to check the bridge queue synchronously.
-            return Math.max(0, FRAME_DURATION - (performanceNow() - frameTime));
-          },
-          didTimeout: !!didTimeout,
-        });
-      } else {
-        console.error('Tried to call a callback with invalid type: ' + type);
-      }
-    } catch (e) {
-      // Don't rethrow so that we can run all timers.
-      if (!JSTimersExecution.errors) {
-        JSTimersExecution.errors = [e];
-      } else {
-        JSTimersExecution.errors.push(e);
-      }
-    }
-
-    if (__DEV__) {
-      Systrace.endEvent();
-    }
-  },
-
-  /**
-   * This is called from the native side. We are passed an array of timerIDs,
-   * and
-   */
-  callTimers(timerIDs: [number]) {
-    invariant(
-      timerIDs.length !== 0,
-      'Cannot call `callTimers` with an empty list of IDs.'
-    );
-
-    JSTimersExecution.errors = null;
-    for (let i = 0; i < timerIDs.length; i++) {
-      JSTimersExecution.callTimer(timerIDs[i], 0);
-    }
-
-    const errors = JSTimersExecution.errors;
-    if (errors) {
-      const errorCount = errors.length;
-      if (errorCount > 1) {
-        // Throw all the other errors in a setTimeout, which will throw each
-        // error one at a time
-        for (let ii = 1; ii < errorCount; ii++) {
-          require('JSTimers').setTimeout(
-            ((error) => { throw error; }).bind(null, errors[ii]),
-            0
-          );
-        }
-      }
-      throw errors[0];
-    }
-  },
-
-  callIdleCallbacks: function(frameTime: number) {
-    if (FRAME_DURATION - (performanceNow() - frameTime) < IDLE_CALLBACK_FRAME_DEADLINE) {
-      return;
-    }
-
-    JSTimersExecution.errors = null;
-    if (JSTimersExecution.requestIdleCallbacks.length > 0) {
-      const passIdleCallbacks = JSTimersExecution.requestIdleCallbacks.slice();
-      JSTimersExecution.requestIdleCallbacks = [];
-
-      for (let i = 0; i < passIdleCallbacks.length; ++i) {
-        JSTimersExecution.callTimer(passIdleCallbacks[i], frameTime);
-      }
-    }
-
-    if (JSTimersExecution.requestIdleCallbacks.length === 0) {
-      const { Timing } = require('NativeModules');
-      Timing.setSendIdleEvents(false);
-    }
-
-    if (JSTimersExecution.errors) {
-      JSTimersExecution.errors.forEach((error) =>
-        require('JSTimers').setTimeout(() => { throw error; }, 0)
-      );
-    }
-  },
-
-  /**
-   * Performs a single pass over the enqueued immediates. Returns whether
-   * more immediates are queued up (can be used as a condition a while loop).
-   */
-  callImmediatesPass() {
-    if (__DEV__) {
-      Systrace.beginEvent('JSTimersExecution.callImmediatesPass()');
-    }
-
-    // The main reason to extract a single pass is so that we can track
-    // in the system trace
-    if (JSTimersExecution.immediates.length > 0) {
-      const passImmediates = JSTimersExecution.immediates.slice();
-      JSTimersExecution.immediates = [];
-
-      // Use for loop rather than forEach as per @vjeux's advice
-      // https://github.com/facebook/react-native/commit/c8fd9f7588ad02d2293cac7224715f4af7b0f352#commitcomment-14570051
-      for (let i = 0; i < passImmediates.length; ++i) {
-        JSTimersExecution.callTimer(passImmediates[i], 0);
-      }
-    }
-
-    if (__DEV__) {
-      Systrace.endEvent();
-    }
-    return JSTimersExecution.immediates.length > 0;
-  },
-
-  /**
-   * This is called after we execute any command we receive from native but
-   * before we hand control back to native.
-   */
-  callImmediates() {
-    JSTimersExecution.errors = null;
-    while (JSTimersExecution.callImmediatesPass()) {}
-    if (JSTimersExecution.errors) {
-      JSTimersExecution.errors.forEach((error) =>
-        require('JSTimers').setTimeout(() => { throw error; }, 0)
-      );
-    }
-  },
-
-  /**
-   * Called from native (in development) when environment times are out-of-sync.
-   */
-  emitTimeDriftWarning(warningMessage: string) {
-    if (hasEmittedTimeDriftWarning) {
-      return;
-    }
-    hasEmittedTimeDriftWarning = true;
-    console.warn(warningMessage);
-  },
-
-  _clearIndex(i: number) {
-    JSTimersExecution.timerIDs[i] = null;
-    JSTimersExecution.callbacks[i] = null;
-    JSTimersExecution.types[i] = null;
-    JSTimersExecution.identifiers[i] = null;
-  },
-};
-
-module.exports = JSTimersExecution;

Libraries/DebugComponentHierarchy/RCTDebugComponentOwnership.js

@@ -1,41 +0,0 @@
-/**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
- * Utility class to provide the component owner hierarchy to native code for
- * debugging purposes.
- *
- * @providesModule RCTDebugComponentOwnership
- * @flow
- */
-
-'use strict';
-
-var BatchedBridge = require('BatchedBridge');
-
-var RCTDebugComponentOwnership = {
-  /**
-   * Asynchronously returns the owner hierarchy as an array of strings. Request id is
-   * passed along to the native module so that the native module can identify the
-   * particular call instance.
-   *
-   * Example returned owner hierarchy: ['RootView', 'Dialog', 'TitleView', 'Text']
-   */
-  getOwnerHierarchy: function(requestID: number, tag: number) {
-    // Consider cleaning up these unused modules in a separate diff.
-    throw new Error(
-      'This seems to be unused. Will disable until it is needed again.'
-    );
-  },
-};
-
-BatchedBridge.registerCallableModule(
-  'RCTDebugComponentOwnership',
-  RCTDebugComponentOwnership
-);
-
-module.exports = RCTDebugComponentOwnership;

Libraries/EventEmitter/RCTDeviceEventEmitter.js

@@ -16,6 +16,20 @@ const EventSubscriptionVendor = require('EventSubscriptionVendor');
 
 import type EmitterSubscription from 'EmitterSubscription';
 
+function checkNativeEventModule(eventType: ?string) {
+  if (eventType) {
+    if (eventType.lastIndexOf('statusBar', 0) === 0) {
+      throw new Error('`' + eventType + '` event should be registered via the StatusBarIOS module');
+    }
+    if (eventType.lastIndexOf('keyboard', 0) === 0) {
+      throw new Error('`' + eventType + '` event should be registered via the Keyboard module');
+    }
+    if (eventType === 'appStateDidChange' || eventType === 'memoryWarning') {
+      throw new Error('`' + eventType + '` event should be registered via the AppState module');
+    }
+  }
+}
+
 /**
  * Deprecated - subclass NativeEventEmitter to create granular event modules instead of
  * adding all event listeners directly to RCTDeviceEventEmitter.
@@ -30,34 +44,19 @@ class RCTDeviceEventEmitter extends EventEmitter {
     this.sharedSubscriber = sharedSubscriber;
   }
 
-  _nativeEventModule(eventType: ?string) {
-    if (eventType) {
-      if (eventType.lastIndexOf('statusBar', 0) === 0) {
-        console.warn('`%s` event should be registered via the StatusBarIOS module', eventType);
-        return require('StatusBarIOS');
-      }
-      if (eventType.lastIndexOf('keyboard', 0) === 0) {
-        console.warn('`%s` event should be registered via the Keyboard module', eventType);
-        return require('Keyboard');
-      }
-      if (eventType === 'appStateDidChange' || eventType === 'memoryWarning') {
-        console.warn('`%s` event should be registered via the AppState module', eventType);
-        return require('AppState');
-      }
-    }
-    return null;
-  }
 
   addListener(eventType: string, listener: Function, context: ?Object): EmitterSubscription {
-    const eventModule = this._nativeEventModule(eventType);
-    return eventModule ? eventModule.addListener(eventType, listener, context)
-                       : super.addListener(eventType, listener, context);
+    if (__DEV__) {
+      checkNativeEventModule(eventType);
+    }
+    return super.addListener(eventType, listener, context);
   }
 
   removeAllListeners(eventType: ?string) {
-    const eventModule = this._nativeEventModule(eventType);
-    (eventModule && eventType) ? eventModule.removeAllListeners(eventType)
-                               : super.removeAllListeners(eventType);
+    if (__DEV__) {
+      checkNativeEventModule(eventType);
+    }
+    super.removeAllListeners(eventType);
   }
 
   removeSubscription(subscription: EmitterSubscription) {

Libraries/Experimental/SwipeableRow/SwipeableListView.js

@@ -12,12 +12,11 @@
 'use strict';
 
 const ListView = require('ListView');
+const PropTypes = require('prop-types');
 const React = require('React');
 const SwipeableListViewDataSource = require('SwipeableListViewDataSource');
 const SwipeableRow = require('SwipeableRow');
 
-const {PropTypes} = React;
-
 type DefaultProps = {
   bounceFirstRowOnMount: boolean,
   renderQuickActions: Function,