[bugfix] rm duplication process dimension

.buckconfig

@@ -0,0 +1,10 @@
+[cxx]
+  gtest_dep = //lib/gtest:gtest
+[android]
+  target = android-25
+  build_tools_version = 26.0.2
+[ndk]
+  ndk_version = 15.2.4203891
+  compiler = clang
+  app_platform = android-21
+  cpu_abis = arm64, armv7, x86, x86_64

.clang-format

@@ -1,91 +1,48 @@
-AccessModifierOffset: -1
+Language: Cpp
+AccessModifierOffset: -2
 AlignAfterOpenBracket: AlwaysBreak
-AlignConsecutiveMacros: false
 AlignConsecutiveAssignments: false
-AlignConsecutiveBitFields: false
 AlignConsecutiveDeclarations: false
 AlignEscapedNewlines: Left
-AlignOperands: DontAlign
+AlignOperands: false
 AlignTrailingComments: false
-AllowAllArgumentsOnNextLine: true
-AllowAllConstructorInitializersOnNextLine: true
 AllowAllParametersOfDeclarationOnNextLine: false
-AllowShortEnumsOnASingleLine: true
-AllowShortBlocksOnASingleLine: Never
+AllowShortBlocksOnASingleLine: false
 AllowShortCaseLabelsOnASingleLine: false
-AllowShortFunctionsOnASingleLine: Empty
-AllowShortLambdasOnASingleLine: All
-AllowShortIfStatementsOnASingleLine: Never
-AllowShortLoopsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: true
 AlwaysBreakAfterReturnType: None
 AlwaysBreakBeforeMultilineStrings: true
 AlwaysBreakTemplateDeclarations: Yes
 BinPackArguments: false
 BinPackParameters: false
-BreakBeforeBinaryOperators: None
+BreakBeforeBinaryOperators: false
 BreakBeforeBraces: Attach
-BreakInheritanceList: BeforeColon
 BreakBeforeTernaryOperators: true
 BreakConstructorInitializers: BeforeColon
-BreakAfterJavaFieldAnnotations: false
-BreakStringLiterals: false
+BreakInheritanceList: BeforeColon
+BreakStringLiterals: true
 ColumnLimit: 80
-CommentPragmas: '^ IWYU pragma:'
 CompactNamespaces: false
 ConstructorInitializerAllOnOneLineOrOnePerLine: true
 ConstructorInitializerIndentWidth: 4
 ContinuationIndentWidth: 4
 Cpp11BracedListStyle: true
-DeriveLineEnding: true
 DerivePointerAlignment: false
-DisableFormat: false
 FixNamespaceComments: true
-ForEachMacros:
-  - FOR_EACH
-  - FOR_EACH_R
-  - FOR_EACH_RANGE
-IncludeBlocks: Preserve
-IncludeCategories:
-  - Regex:           '^<.*\.h(pp)?>'
-    Priority:        1
-  - Regex:           '^<.*'
-    Priority:        2
-  - Regex:           '.*'
-    Priority:        3
 IndentCaseLabels: true
-IndentCaseBlocks: false
-IndentGotoLabels: true
 IndentPPDirectives: None
-IndentExternBlock: AfterExternBlock
 IndentWidth: 2
 IndentWrappedFunctionNames: false
-InsertTrailingCommas: None
-JavaScriptQuotes: Leave
-JavaScriptWrapImports: true
-KeepEmptyLinesAtTheStartOfBlocks: false
-MacroBlockBegin: ''
-MacroBlockEnd: ''
 MaxEmptyLinesToKeep: 1
 NamespaceIndentation: None
-ObjCBinPackProtocolList: Auto
-ObjCBlockIndentWidth: 2
-ObjCBreakBeforeNestedBlockParam: true
-ObjCSpaceAfterProperty: false
-ObjCSpaceBeforeProtocolList: false
-PenaltyBreakAssignment: 2
-PenaltyBreakBeforeFirstCallParameter: 1
-PenaltyBreakComment: 300
-PenaltyBreakFirstLessLess: 120
-PenaltyBreakString: 1000
-PenaltyBreakTemplateDeclaration: 10
-PenaltyExcessCharacter: 1000000
-PenaltyReturnTypeOnItsOwnLine: 200
+PenaltyReturnTypeOnItsOwnLine: 2000
 PointerAlignment: Left
 ReflowComments: true
-SortIncludes: true
+SortIncludes: false
 SortUsingDeclarations: true
-SpaceAfterCStyleCast: false
-SpaceAfterLogicalNot: false
+SpaceAfterCStyleCast: true
 SpaceAfterTemplateKeyword: true
 SpaceBeforeAssignmentOperators: true
 SpaceBeforeCpp11BracedList: false
@@ -93,17 +50,7 @@ SpaceBeforeCtorInitializerColon: true
 SpaceBeforeInheritanceColon: true
 SpaceBeforeParens: ControlStatements
 SpaceBeforeRangeBasedForLoopColon: true
-SpaceInEmptyBlock: false
 SpaceInEmptyParentheses: false
 SpacesBeforeTrailingComments: 1
-SpacesInAngles: false
-SpacesInConditionalStatement: false
-SpacesInContainerLiterals: true
-SpacesInCStyleCastParentheses: false
-SpacesInParentheses: false
-SpacesInSquareBrackets: false
-SpaceBeforeSquareBrackets: false
-Standard: Latest
-TabWidth: 8
-UseCRLF: false
+Standard: Cpp11
 UseTab: Never

.clang-format-ignore

@@ -0,0 +1 @@
+^lib/.*

.eslintrc.cjs

@@ -1,89 +0,0 @@
-/**
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @format
- */
-
-module.exports = {
-  root: true,
-  ignorePatterns: [
-    '/website',
-    '**/binaries/**',
-    '**/build/**',
-    '**/generated/**',
-  ],
-  overrides: [
-    // Catch-all
-    {
-      files: ['**/*.?(m|c){j,t}s?(x)'],
-      extends: ['eslint:recommended', 'plugin:prettier/recommended'],
-      plugins: ['prettier'],
-      rules: {
-        'no-unused-vars': ['error', {argsIgnorePattern: '^_'}],
-        'no-var': 'error',
-        'prefer-arrow-callback': 'error',
-        'prefer-const': 'error',
-        'prefer-object-spread': 'error',
-        'prefer-spread': 'error',
-        'require-await': 'error',
-      },
-      env: {
-        es2020: true,
-        'shared-node-browser': true,
-      },
-      parserOptions: {
-        ecmaVersion: 'latest',
-      },
-    },
-    // ES Modules
-    {
-      files: ['**/*.?(m){j,t}s?(x)'],
-      parserOptions: {
-        sourceType: 'module',
-      },
-    },
-    // CommonJS Modules
-    {
-      files: ['**/*.c{j,t}s?(x)'],
-      env: {
-        commonjs: true,
-      },
-      parserOptions: {
-        sourceType: 'commonjs',
-      },
-    },
-    // TypeScript
-    {
-      files: ['**/*.?(m|c)ts?(x)'],
-      extends: ['plugin:@typescript-eslint/recommended'],
-      parser: '@typescript-eslint/parser',
-      parserOptions: {
-        project: true,
-      },
-      plugins: ['@typescript-eslint'],
-      rules: {
-        '@typescript-eslint/ban-ts-comment': 'off',
-        '@typescript-eslint/no-unused-vars': [
-          'error',
-          {argsIgnorePattern: '^_'},
-        ],
-        '@typescript-eslint/no-var-requires': 'off',
-      },
-    },
-    // Node
-    {
-      files: ['**/.*rc.(c){j,t}s', '**/*.config.?(c){j,t}s'],
-      env: {
-        node: true,
-      },
-    },
-    // Jest
-    {
-      files: ['**/tests/**'],
-      extends: ['plugin:jest/recommended'],
-    },
-  ],
-};

.github/actions/black/action.yml

@@ -1,25 +0,0 @@
-name: Black Formatter
-inputs:
-  directory:
-    description: Directory to Lint
-    required: true
-  version:
-    description: pypi version of "black" to use
-    required: false
-    default: 22.3.0
-
-runs:
-  using: "composite"
-  steps:
-    - name: Ensure supported Python selected
-      uses: actions/setup-python@v4
-      with:
-        python-version: '>=3.6.2'
-
-    - name: pip install
-      shell: bash
-      run: pip install black==${{ inputs.version }}
-
-    - name: black
-      shell: bash
-      run: black --check ${{ inputs.directory }}

.github/actions/cache-emsdk/action.yml

@@ -1,10 +0,0 @@
-name: Cache the installed copy of emsdk and its build artifacts
-
-runs:
-  using: "composite"
-  steps:
-    - name: Cache emsdk
-      uses: actions/cache@v3
-      with:
-        path: javascript/.emsdk
-        key: emsdk-${{ runner.os }}-${{ runner.arch }}-${{ hashFiles('yarn.lock', 'javascript/package.json', 'javascript/just.config.cjs')}}

.github/actions/clang-format/action.yml

@@ -1,23 +0,0 @@
-name: Clang Format
-inputs:
-  directory:
-    description: Directory to Lint
-    required: true
-  version:
-    description: LLVM version to use # Should be kept roughly in sync with arcanist
-    required: false
-    default: 12
-
-runs:
-  using: "composite"
-  steps:
-    - name: Install
-      shell: bash
-      run: sudo apt-get install -y clang-format-${{ inputs.version }}
-
-    - name: clang-format
-      working-directory: ${{ inputs.directory }}
-      shell: bash
-      env:
-        BASHOPTS: extglob:nullglob
-      run: clang-format-${{ inputs.version }} --dry-run --Werror **/*.{h,hh,hpp,c,cpp,cc,m,mm}

.github/actions/install-ninja/action.yml

@@ -1,14 +0,0 @@
-name: Install Ninja
-
-runs:
-  using: "composite"
-  steps:
-    - name: Install ninja (Linux)
-      if: ${{ runner.os == 'Linux' }}
-      shell: bash
-      run: sudo apt-get install -y ninja-build
-
-    - name: Install ninja (Windows)
-      if: ${{ runner.os == 'Windows' }}
-      shell: powershell
-      run: choco install ninja

.github/actions/setup-android/action.yml

@@ -1,12 +0,0 @@
-name: Setup Android environment
-
-runs:
-  using: "composite"
-  steps:
-    - name: Select Java Version
-      uses: actions/setup-java@v2
-      with:
-        distribution: zulu
-        java-version: 17
-    - name: Configure Gradle Caches
-      uses: gradle/gradle-build-action@v2

.github/actions/setup-apple/action.yml

@@ -1,13 +0,0 @@
-name: Setup Apple envirionment
-
-runs:
-  using: "composite"
-  steps:
-    # TODO: This and Ruby should be versioned
-    - name: Install Cocoapods
-      shell: bash
-      run: sudo gem install cocoapods
-
-    - uses: maxim-lobanov/setup-xcode@v1
-      with:
-        xcode-version: 14.3.1

.github/actions/setup-cpp/action.yml

@@ -1,33 +0,0 @@
-name: Setup C++ envirionment
-inputs:
-  toolchain:
-    description: Compiler toolchain to use (Clang, GCC, or MSVC)
-    required: false
-    default: 'Clang'
-
-runs:
-  using: "composite"
-  steps:
-    - name: Install Ninja
-      if: ${{ runner.os != 'Windows' }}
-      uses: ./.github/actions/install-ninja
-
-    - name: Set Clang as compiler
-      if: ${{ inputs.toolchain == 'Clang' }}
-      shell: bash
-      run: |
-        echo "CC=/usr/bin/clang" >> $GITHUB_ENV
-        echo "CXX=/usr/bin/clang++" >> $GITHUB_ENV
-        echo "CXXFLAGS=-stdlib=libc++" >> $GITHUB_ENV
-        echo "LDFLAGS=-stdlib=libc++" >> $GITHUB_ENV
-
-    - name: Set GCC as compiler
-      if: ${{ inputs.toolchain == 'GCC' }}
-      shell: bash
-      run: |
-        echo "CC=/usr/bin/gcc" >> $GITHUB_ENV
-        echo "CXX=/usr/bin/g++" >> $GITHUB_ENV
-
-    - name: Setup VS Developer Command Prompt
-      if: ${{ runner.os == 'Windows' }}
-      uses: ilammy/msvc-dev-cmd@v1

.github/actions/setup-js/action.yml

@@ -1,18 +0,0 @@
-name: Setup JavaScript envirionment
-
-runs:
-  using: "composite"
-  steps:
-    - name: Setup Node environment
-      uses: actions/setup-node@v3
-      with:
-        node-version: 18.x
-        cache: yarn
-        cache-dependency-path: yarn.lock
-      env:
-        # https://github.com/actions/setup-node/issues/317
-        FORCE_COLOR: 0
-
-    - name: yarn install
-      shell: bash
-      run: yarn install --frozen-lockfile

.github/actions/setup-website/action.yml

@@ -1,23 +0,0 @@
-name: Setup Website envirionment
-
-runs:
-  using: "composite"
-  steps:
-    # TODO: Update to latest when website is moved to the workspace version of
-    # yoga-layout
-    - name: Setup Node environment
-      uses: actions/setup-node@v3
-      with:
-        node-version: 12.x
-        cache: yarn
-        cache-dependency-path: website/yarn.lock
-      env:
-        # https://github.com/actions/setup-node/issues/317
-        FORCE_COLOR: 0
-
-    # TODO: the website should be in a yarn workspace with the library, but the
-    # current version of gatsby is incompatible with hoisting.
-    - name: yarn install
-      shell: bash
-      run: yarn install --frozen-lockfile --network-timeout 1000000
-      working-directory: website

.github/workflows/publish-android-release.yml

@@ -1,38 +0,0 @@
-name: Publish Android Release
-
-on:
-  push:
-    tags:
-      - '*'
-  workflow_dispatch:
-
-jobs:
-  publish:
-    name: Publish to Maven Central
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-android
-
-      - name: Publish to Maven Local
-        run: ./gradlew publishToMavenLocal
-        env:
-          ORG_GRADLE_PROJECT_SIGNING_KEY: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_KEY }}
-          ORG_GRADLE_PROJECT_SIGNING_PWD: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_PWD }}
-
-      - name: Upload Build Artifacts
-        uses: actions/upload-artifact@v3
-        with:
-          name: 'snapshot-artifacts'
-          path: '~/.m2/repository/'
-
-      - name: Publish to the Maven Central
-        run: ./gradlew publishToSonatype closeAndReleaseSonatypeStagingRepository
-        env:
-          ORG_GRADLE_PROJECT_SONATYPE_USERNAME: ${{ secrets.ORG_GRADLE_PROJECT_SONATYPE_USERNAME }}
-          ORG_GRADLE_PROJECT_SONATYPE_PASSWORD: ${{ secrets.ORG_GRADLE_PROJECT_SONATYPE_PASSWORD }}
-          ORG_GRADLE_PROJECT_SIGNING_KEY: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_KEY }}
-          ORG_GRADLE_PROJECT_SIGNING_PWD: ${{ secrets.ORG_GRADLE_PROJECT_SIGNING_PWD }}

.github/workflows/publish-android-snashot.yml

@@ -1,36 +0,0 @@
-name: Publish Android Snapshot
-
-on:
-  push:
-    branches:
-      - main
-  workflow_dispatch:
-
-jobs:
-  publish:
-    name: Publish Snapshot
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-android
-
-      - name: Publish to Maven Local
-        run: ./gradlew publishToMavenLocal
-        env:
-          ORG_GRADLE_PROJECT_USE_SNAPSHOT: true
-
-      - name: Upload Build Artifacts
-        uses: actions/upload-artifact@v3
-        with:
-          name: 'snapshot-artifacts'
-          path: '~/.m2/repository/'
-
-      - name: Publish to the Snapshot Repository
-        run: ./gradlew publishToSonatype
-        env:
-          ORG_GRADLE_PROJECT_SONATYPE_USERNAME: ${{ secrets.ORG_GRADLE_PROJECT_SONATYPE_USERNAME }}
-          ORG_GRADLE_PROJECT_SONATYPE_PASSWORD: ${{ secrets.ORG_GRADLE_PROJECT_SONATYPE_PASSWORD }}
-          ORG_GRADLE_PROJECT_USE_SNAPSHOT: true

.github/workflows/publish-cocoapods-release.yml

@@ -1,23 +0,0 @@
-name: Publish CocoaPods Release
-
-on:
-  push:
-    tags:
-      - '*'
-  workflow_dispatch:
-
-jobs:
-  publish:
-    name: Publish to CocoaPods trunk
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-apple
-
-      - name: Publish Yoga
-        run: pod trunk push Yoga.podspec
-        env:
-          COCOAPODS_TRUNK_TOKEN: ${{ secrets.COCOAPODS_TRUNK_TOKEN }}

.github/workflows/publish-npm-release.yml

@@ -1,25 +0,0 @@
-name: Publish NPM Release
-
-on:
-  push:
-    tags:
-      - '*'
-  workflow_dispatch:
-
-jobs:
-  publish:
-    name: Publish to npmjs registry
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-js
-
-      - name: Store auth token in config file
-        run: echo "//registry.npmjs.org/:_authToken=${{ secrets.NPM_TOKEN }}" > ~/.npmrc
-
-      - name: yarn publish
-        run: yarn publish
-        working-directory: javascript

.github/workflows/publish-website.yml

@@ -1,35 +0,0 @@
-name: Publish Website
-
-on:
-  push:
-    branches:
-      - main
-  workflow_dispatch:
-
-concurrency:
-  group: ${{ github.workflow }}
-
-jobs:
-  publish:
-    name: Publish to GitHub Pages
-    runs-on: ubuntu-20.04
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-website
-
-      - name: yarn build
-        run: yarn build
-        working-directory: website
-
-      - uses: peaceiris/actions-gh-pages@v3
-        with:
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_branch: gh-pages
-          publish_dir: website/public
-          cname: yogalayout.dev
-          keep_files: true
-          user_name: 'Yoga-bot'
-          user_email: 'yogabot@fb.com'

.github/workflows/validate-android.yml

@@ -1,27 +0,0 @@
-name: Validate Android
-
-on:
-  pull_request:
-  push:
-    branches:
-      - main
-      - 'release-*'
-  workflow_dispatch:
-
-jobs:
-  build:
-    name: Build [${{ matrix.os }}][${{ matrix.mode }}]
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        mode: [Debug, Release]
-        os: [ubuntu-latest, windows-latest]
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-android
-
-      - name: Build
-        run: ./gradlew assemble${{ matrix.mode }} --stacktrace

.github/workflows/validate-apple.yml

@@ -1,39 +0,0 @@
-name: Validate Apple
-
-on:
-  pull_request:
-  push:
-    branches:
-      - main
-      - 'release-*'
-  workflow_dispatch:
-
-jobs:
-  lint-pods:
-    name: Build [CocoaPods]
-    runs-on: macos-13
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-apple
-
-      - name: pod lib lint
-        run: pod lib lint --verbose --include-podspecs=**/*.podspec
-
-  test:
-    name: Build [SwiftPM]
-    runs-on: macos-13
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-apple
-
-      - name: Build Debug
-        run: swift build -c debug
-
-      - name: Build Release
-        run: swift build -c release

.github/workflows/validate-cpp.yml

@@ -1,109 +0,0 @@
-name: Validate C++
-
-on:
-  pull_request:
-  push:
-    branches:
-      - main
-      - 'release-*'
-  workflow_dispatch:
-
-env:
-  GTEST_COLOR: 1
-
-jobs:
-  test:
-    name: Build and Test [${{ matrix.toolchain }}][${{ matrix.mode }}]
-    runs-on: ${{ (matrix.toolchain == 'MSVC') && 'windows-latest' || 'ubuntu-latest'  }}
-    strategy:
-      matrix:
-        mode: [Debug, Release]
-        toolchain: [Clang, GCC] # TODO: fix issues building GTest Binary with MSVC in GitHub Actions
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-cpp
-        with:
-          toolchain: ${{ matrix.toolchain }}
-
-      - name: Unit tests
-        run: ./unit_tests ${{ matrix.mode }}
-
-
-  build_fuzzers:
-    name: Build fuzzers [${{ matrix.toolchain }}][${{ matrix.mode }}]
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        mode: [Debug, Release]
-        toolchain: [Clang]
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-cpp
-        with:
-          toolchain: ${{ matrix.toolchain }}
-
-      - name: Unit tests
-        run: ./build_fuzz_tests ${{ matrix.mode }}
-
-  benchmark:
-    name: Benchmark [${{ matrix.toolchain }}]
-    runs-on: ${{ (matrix.toolchain == 'MSVC') && 'windows-latest' || 'ubuntu-latest'  }}
-    strategy:
-      matrix:
-        toolchain: [Clang, GCC, MSVC]
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-cpp
-        with:
-          toolchain: ${{ matrix.toolchain }}
-
-      - name: Build and run benchmark
-        run: |
-          cmake -S . -B build -G Ninja -D CMAKE_BUILD_TYPE=Release
-          cmake --build build
-          ./build/benchmark ./captures
-        working-directory: benchmark
-
-      - name: Build and run benchmarklegacy
-        run: ./build/benchmarklegacy
-        working-directory: benchmark
-
-  capture:
-    name: Capture [${{ matrix.toolchain }}]
-    runs-on: ${{ (matrix.toolchain == 'MSVC') && 'windows-latest' || 'ubuntu-latest'  }}
-    strategy:
-      matrix:
-        toolchain: [Clang, GCC, MSVC]
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-cpp
-        with:
-          toolchain: ${{ matrix.toolchain }}
-
-      - name: Build capture
-        run: |
-          cmake -S . -B build -G Ninja -D CMAKE_BUILD_TYPE=Release
-          cmake --build build
-        working-directory: capture
-
-  clang-format:
-    name: Format
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: clang-format
-        uses: ./.github/actions/clang-format

.github/workflows/validate-js.yml

@@ -1,116 +0,0 @@
-name: Validate JavaScript
-
-on:
-  pull_request:
-  push:
-    branches:
-      - main
-      - 'release-*'
-  workflow_dispatch:
-
-env:
-  FORCE_COLOR: 3
-
-jobs:
-  benchmark:
-    name: Benchmark [${{ matrix.os }}]
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, windows-latest]
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-js
-
-      - name: Restore emsdk
-        uses: ./.github/actions/cache-emsdk
-
-      - name: yarn benchmark
-        run: yarn benchmark
-        working-directory: javascript
-
-  build:
-    name: Build [${{ matrix.os }}]
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, windows-latest]
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-js
-
-      - name: Restore emsdk
-        uses: ./.github/actions/cache-emsdk
-
-      - name: yarn build
-        run: yarn build --verbose
-        working-directory: javascript
-
-  test:
-    name: Test [${{ matrix.os }}]
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-latest, windows-latest]
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-js
-
-      - name: Restore emsdk
-        uses: ./.github/actions/cache-emsdk
-
-      - name: yarn test
-        run: yarn test
-        working-directory: javascript
-
-  lint:
-    name: ESLint (All Packages)
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-js
-
-      - name: yarn lint
-        run: yarn lint
-
-  typecheck:
-    name: Typecheck
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-js
-
-      - name: yarn tsc
-        run: yarn tsc
-        working-directory: javascript
-
-  pack:
-    name: Pack
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-js
-
-      - name: Restore emsdk
-        uses: ./.github/actions/cache-emsdk
-
-      - name: yarn pack
-        run: yarn pack --filename yoga-layout.tar.gz
-        working-directory: javascript
-
-      - uses: actions/upload-artifact@v3
-        with:
-          name: npm-package
-          path: javascript/yoga-layout.tar.gz

.github/workflows/validate-tests.yml

@@ -1,33 +0,0 @@
-name: Validate Tests
-
-on:
-  pull_request:
-  push:
-    branches:
-      - main
-      - 'release-*'
-  workflow_dispatch:
-
-jobs:
-  validate:
-    name: Validate
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup JS
-        uses: ./.github/actions/setup-js
-
-      - name: yarn gentest-validate
-        run: yarn gentest-validate
-
-      - name: yarn gentest
-        run: yarn gentest -h
-
-      - name: Check for modified tests
-        run: |
-          if [[ -n $(git status -s) ]]; then
-            git status -s
-            echo "yarn gentest modified these tests. Please run yarn gentest to resolve."
-            exit 1
-          fi

.github/workflows/validate-website.yml

@@ -1,56 +0,0 @@
-name: Validate Website
-
-on:
-  pull_request:
-    branches:
-      - main
-  push:
-    branches:
-      - main
-  workflow_dispatch:
-
-jobs:
-  build:
-    name: Build [Gatsby]
-    runs-on: ubuntu-20.04
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-website
-
-      - name: yarn build
-        run: yarn build
-        working-directory: website
-
-  build_next:
-    name: Build [Docusaurus]
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-js
-
-      - name: Restore emsdk
-        uses: ./.github/actions/cache-emsdk
-
-      - name: Build Website
-        run: yarn build
-        working-directory: website-next
-
-  typecheck:
-    name: Typecheck [Docusaurus]
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Setup
-        uses: ./.github/actions/setup-js
-
-      - name: yarn tsc
-        run: yarn tsc
-        working-directory: website-next

.gitignore

@@ -5,16 +5,14 @@
 /.buckconfig.local
 /.buckd
 /gentest/test.html
-.buck-java11
-node_modules
+.buckversion
 
 # Jekyll
 /.sass-cache/
 /_site/
 
 # Visual studio code
-!.vscode
-
+.vscode
 *.pdb
 *.tlog
 *.obj
@@ -65,11 +63,5 @@ Carthage/Build
 
 # Gradle
 .gradle
-local.properties
-
 # NDK/CMake
-.cxx
 .externalNativeBuild
-
-# Docusarus build
-.docusaurus

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "lib/gtest/googletest"]
+	path = lib/gtest/googletest
+	url = https://github.com/google/googletest.git

.prettierignore

@@ -1,3 +0,0 @@
-**/binaries/**
-**/build/**
-**/generated/**

.prettierrc.js

@@ -1,16 +0,0 @@
-/**
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- *
- * @format
- */
-
-module.exports = {
-  arrowParens: 'avoid',
-  bracketSameLine: true,
-  bracketSpacing: false,
-  singleQuote: true,
-  trailingComma: 'all',
-};

.swift-version

@@ -0,0 +1 @@
+4.0

.travis.yml

@@ -0,0 +1,76 @@
+language: java
+os: linux
+addons:
+  apt:
+    sources:
+      - llvm-toolchain-trusty-6.0
+      - ubuntu-toolchain-r-test
+    packages:
+      - clang-6.0
+
+env:
+  - TARGET: website
+  - TARGET: android
+
+install:
+- cd website
+- yarn --ignore-scripts
+- cd ..
+
+cache:
+  directories:
+    - $HOME/buck
+    - $HOME/.gradle
+
+before_install:
+  - |
+    if [[ -n "$encrypted_d27e803291ff_iv" ]]; then
+      openssl aes-256-cbc -K $encrypted_d27e803291ff_key -iv $encrypted_d27e803291ff_iv -in scripts/setup-keys.enc -d >> gradle.properties;
+    fi
+  # Android
+  - |
+    if [[ $TARGET = "android" ]]; then
+      pushd $HOME
+      git clone --depth 1 https://github.com/facebook/buck.git
+      cd buck
+      ant
+      popd
+      export PATH=$PATH:$HOME/buck/bin/
+      buck --version
+      export TERMINAL=dumb
+      source scripts/android-setup.sh && installAndroidSDK
+      export ANDROID_SDK=$ANDROID_HOME
+      export ANDROID_NDK_REPOSITORY=$HOME/android-ndk
+      export ANDROID_NDK_HOME=$ANDROID_NDK_REPOSITORY/android-ndk-r15c
+    fi
+  # Website
+  - |
+    if [[ $TARGET = "website" ]]; then
+      nvm install 8
+      nvm use 8
+    fi
+
+script:
+  - |
+    if [[ $TARGET = "android" ]]; then
+      ./gradlew testDebugUnit && scripts/publish-snapshot.sh
+    fi
+  - |
+    if [[ $TARGET = "website" ]]; then
+      pushd website
+      yarn build
+      popd
+    fi
+
+deploy:
+  provider: pages
+  skip-cleanup: true
+  github-token: $GITHUB_TOKEN
+  fqdn: yogalayout.com
+  local-dir: website/public
+  email: yogabot@fb.com
+  name: Yoga-bot
+  keep-history: true
+  on:
+    branch: master
+    condition: $TARGET = website

.vscode/extensions.json

@@ -1,7 +0,0 @@
-{
-  "recommendations": [
-    "ms-vscode.cpptools",
-    "EditorConfig.EditorConfig",
-    "dbaeumer.vscode-eslint",
-  ]
-}

.vscode/launch.json

@@ -1,25 +0,0 @@
-{
-  // Use IntelliSense to learn about possible attributes.
-  // Hover to view descriptions of existing attributes.
-  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
-  "version": "0.2.0",
-  "configurations": [
-    {
-      "name": "Debug C++ Unit tests (lldb)",
-      "type": "cppdbg",
-      "MIMode": "lldb",
-      "request": "launch",
-      "program": "${workspaceFolder}/tests/build/yogatests",
-      "cwd": "${workspaceFolder}",
-      "preLaunchTask": "Build Unit Tests"
-    },
-    {
-      "name": "Debug C++ Unit tests (vsdbg)",
-      "type": "cppvsdbg",
-      "request": "launch",
-      "program": "${workspaceFolder}/tests/build/yogatests",
-      "cwd": "${workspaceFolder}",
-      "preLaunchTask": "Build Unit Tests"
-    }
-  ]
-}

.vscode/settings.json

@@ -1,20 +0,0 @@
-{
-  "editor.formatOnSave": true,
-  "editor.codeActionsOnSave": {
-    "source.fixAll.eslint": true
-  },
-  "eslint.format.enable": true,
-  "eslint.packageManager": "yarn",
-  "eslint.enable": true,
-  "eslint.validate": [
-    "javascript",
-    "javascriptreact",
-    "typescript",
-    "typescriptreact"
-  ],
-  "eslint.workingDirectories": [
-    {
-      "mode": "auto"
-    }
-  ],
-}

.vscode/tasks.json

@@ -1,23 +0,0 @@
-{
-  // See https://go.microsoft.com/fwlink/?LinkId=733558
-  // for the documentation about the tasks.json format
-  "version": "2.0.0",
-  "tasks": [
-    {
-      "label": "Build Unit Tests",
-      "type": "shell",
-      "command": "(which ninja && cmake -B build -S . -D CMAKE_BUILD_TYPE=Debug -G Ninja || cmake -B build -S . -D CMAKE_BUILD_TYPE=Debug) && cmake --build build",
-      "windows": {
-        "command": "(where ninja && cmake -B build -S . -D CMAKE_BUILD_TYPE=Debug -G Ninja || cmake -B build -S . -D CMAKE_BUILD_TYPE=Debug) && cmake --build build",
-      },
-      "group": "build",
-      "options": {
-        "cwd": "tests"
-      },
-      "presentation": {
-        "reveal": "always",
-        "panel": "new"
-      }
-    }
-  ]
-}

BUCK

@@ -0,0 +1,57 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+load("//tools/build_defs/oss:yoga_defs.bzl", "BASE_COMPILER_FLAGS", "GTEST_TARGET", "LIBRARY_COMPILER_FLAGS", "subdir_glob", "yoga_cxx_library", "yoga_cxx_test", "yoga_dep")
+
+GMOCK_OVERRIDE_FLAGS = [
+    # gmock does not mark mocked methods as override, ignore the warnings in tests
+    "-Wno-inconsistent-missing-override",
+]
+
+TEST_COMPILER_FLAGS = BASE_COMPILER_FLAGS + GMOCK_OVERRIDE_FLAGS + [
+    "-DDEBUG",
+    "-DYG_ENABLE_EVENTS",
+]
+
+yoga_cxx_library(
+    name = "yoga",
+    srcs = glob(["yoga/**/*.cpp"]),
+    header_namespace = "",
+    exported_headers = subdir_glob([("", "yoga/**/*.h")]),
+    compiler_flags = LIBRARY_COMPILER_FLAGS,
+    soname = "libyogacore.$(ext)",
+    tests = [":YogaTests"],
+    visibility = ["PUBLIC"],
+    deps = [
+        yoga_dep("lib/fb:ndklog"),
+    ],
+)
+
+yoga_cxx_library(
+    name = "yogaForDebug",
+    srcs = glob(["yoga/**/*.cpp"]),
+    header_namespace = "",
+    exported_headers = subdir_glob([("", "yoga/**/*.h")]),
+    compiler_flags = TEST_COMPILER_FLAGS,
+    soname = "libyogacore.$(ext)",
+    tests = [":YogaTests"],
+    visibility = ["PUBLIC"],
+    deps = [
+        yoga_dep("lib/fb:ndklog"),
+    ],
+)
+
+yoga_cxx_test(
+    name = "YogaTests",
+    srcs = glob(["tests/*.cpp"]),
+    headers = subdir_glob([("", "yoga/**/*.h")]),
+    compiler_flags = TEST_COMPILER_FLAGS,
+    contacts = ["emilsj@fb.com"],
+    visibility = ["PUBLIC"],
+    deps = [
+        ":yogaForDebug",
+        yoga_dep("testutil:testutil"),
+        GTEST_TARGET,
+    ],
+)

CMakeLists.txt

@@ -1,58 +1,16 @@
-# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# Copyright (c) Facebook, Inc. and its affiliates.
 #
 # This source code is licensed under the MIT license found in the
 # LICENSE file in the root directory of this source tree.
+#
+
+cmake_minimum_required(VERSION 3.4.1)
 
-cmake_minimum_required(VERSION 3.13...3.26)
-project(yoga-all)
 set(CMAKE_VERBOSE_MAKEFILE on)
 
-include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/project-defaults.cmake)
+file(GLOB yogacore_SRC yoga/*.cpp)
+add_library(yogacore STATIC ${yogacore_SRC})
 
-add_subdirectory(yoga)
-add_subdirectory(tests)
-
-option(BUILD_FUZZ_TESTS "Build fuzz tests" OFF)
-
-if ('${CMAKE_CXX_COMPILER_ID}' MATCHES 'Clang' AND  BUILD_FUZZ_TESTS)
-    add_subdirectory(fuzz)
-endif()
-
-# cmake install config
-include(GNUInstallDirs)
-include(CMakePackageConfigHelpers)
-
-# declare target to install
-install(TARGETS yogacore EXPORT yoga-targets
-    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
-    INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-)
-
-# install header files
-install(DIRECTORY
-    "${CMAKE_CURRENT_LIST_DIR}/yoga"
-    DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
-    FILES_MATCHING PATTERN "*.h"
-)
-
-# install target config
-install(EXPORT yoga-targets
-    FILE yogaTargets.cmake
-    NAMESPACE yoga::
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/yoga
-)
-
-
-# generate config file
-configure_package_config_file(
-    ${CMAKE_CURRENT_SOURCE_DIR}/cmake/yoga-config.cmake.in
-    ${CMAKE_CURRENT_BINARY_DIR}/yogaConfig.cmake
-    INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/yoga
-)
-
-# install config file
-install(FILES
-    ${CMAKE_CURRENT_BINARY_DIR}/yogaConfig.cmake
-    DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/yoga
-)
+target_link_libraries(yogacore android log)
+set_target_properties(yogacore PROPERTIES CXX_STANDARD 11)

CODE_OF_CONDUCT.md

@@ -1,76 +1,3 @@
 # Code of Conduct
 
-## Our Pledge
-
-In the interest of fostering an open and welcoming environment, we as
-contributors and maintainers pledge to make participation in our project and
-our community a harassment-free experience for everyone, regardless of age, body
-size, disability, ethnicity, sex characteristics, gender identity and expression,
-level of experience, education, socio-economic status, nationality, personal
-appearance, race, religion, or sexual identity and orientation.
-
-## Our Standards
-
-Examples of behavior that contributes to creating a positive environment
-include:
-
-* Using welcoming and inclusive language
-* Being respectful of differing viewpoints and experiences
-* Gracefully accepting constructive criticism
-* Focusing on what is best for the community
-* Showing empathy towards other community members
-
-Examples of unacceptable behavior by participants include:
-
-* The use of sexualized language or imagery and unwelcome sexual attention or
-  advances
-* Trolling, insulting/derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or electronic
-  address, without explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
-  professional setting
-
-## Our Responsibilities
-
-Project maintainers are responsible for clarifying the standards of acceptable
-behavior and are expected to take appropriate and fair corrective action in
-response to any instances of unacceptable behavior.
-
-Project maintainers have the right and responsibility to remove, edit, or
-reject comments, commits, code, wiki edits, issues, and other contributions
-that are not aligned to this Code of Conduct, or to ban temporarily or
-permanently any contributor for other behaviors that they deem inappropriate,
-threatening, offensive, or harmful.
-
-## Scope
-
-This Code of Conduct applies within all project spaces, and it also applies when
-an individual is representing the project or its community in public spaces.
-Examples of representing a project or community include using an official
-project e-mail address, posting via an official social media account, or acting
-as an appointed representative at an online or offline event. Representation of
-a project may be further defined and clarified by project maintainers.
-
-## Enforcement
-
-Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported by contacting the project team at <opensource-conduct@fb.com>. All
-complaints will be reviewed and investigated and will result in a response that
-is deemed necessary and appropriate to the circumstances. The project team is
-obligated to maintain confidentiality with regard to the reporter of an incident.
-Further details of specific enforcement policies may be posted separately.
-
-Project maintainers who do not follow or enforce the Code of Conduct in good
-faith may face temporary or permanent repercussions as determined by other
-members of the project's leadership.
-
-## Attribution
-
-This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
-available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
-
-[homepage]: https://www.contributor-covenant.org
-
-For answers to common questions about this code of conduct, see
-https://www.contributor-covenant.org/faq
+Facebook has adopted a Code of Conduct that we expect project participants to adhere to. Please [read the full text](https://code.fb.com/codeofconduct/) so that you can understand what actions will and will not be tolerated.

CONTRIBUTING.md

@@ -8,7 +8,7 @@ Facebook has adopted a Code of Conduct that we expect project participants to ad
 
 ## Pull Requests
 We actively welcome your pull requests.
-1. Fork the repo and create your branch from `main`.
+1. Fork the repo and create your branch from `master`.
 2. If you've added code that should be tested, add tests
 3. If you've changed APIs, update the documentation.
 4. Ensure the test suite passes.

Package.swift

@@ -1,32 +0,0 @@
-// swift-tools-version:5.0
-// The swift-tools-version declares the minimum version of Swift required to build this package.
-/*
- * Copyright (c) Meta Platforms, Inc. and affiliates.
- *
- * This source code is licensed under the MIT license found in the
- * LICENSE file in the root directory of this source tree.
- */
-
-
-import PackageDescription
-
-let package = Package(
-    name: "yoga",
-    products: [
-        .library(name: "yoga", targets: [ "core" ])
-    ],
-    targets: [
-        .target(
-            name: "core",
-            path: ".",
-            sources: [
-                "yoga"
-            ],
-            publicHeadersPath: ".",
-            cxxSettings: [
-                .headerSearchPath(".")
-            ]
-        )
-    ],
-    cxxLanguageStandard: CXXLanguageStandard(rawValue: "c++20")
-)

README.md

@@ -1,22 +1,14 @@
-# Yoga [![Support Ukraine](https://img.shields.io/badge/Support-Ukraine-FFD500?style=flat&labelColor=005BBB)](https://opensource.fb.com/support-ukraine) [![CocoaPods](https://img.shields.io/cocoapods/v/Yoga.svg)](http://cocoapods.org/pods/Yoga) [![npm](https://img.shields.io/npm/v/yoga-layout.svg)](https://www.npmjs.com/package/yoga-layout) [![Maven Central](https://img.shields.io/maven-central/v/com.facebook.yoga/yoga)](https://search.maven.org/artifact/com.facebook.yoga/yoga)
-
-Yoga is an embeddable and performant flexbox layout engine with bindings for multiple languages.
+# Yoga [![CocoaPods](https://img.shields.io/cocoapods/v/YogaKit.svg)](http://cocoapods.org/pods/YogaKit) [![npm](https://img.shields.io/npm/v/yoga-layout.svg)](https://www.npmjs.com/package/yoga-layout) [![bintray](https://img.shields.io/bintray/v/facebook/maven/com.facebook.yoga:yoga.svg)](https://bintray.com/facebook/maven/com.facebook.yoga%3Ayoga/_latestVersion) [![NuGet](https://img.shields.io/nuget/v/Facebook.Yoga.svg)](https://www.nuget.org/packages/Facebook.Yoga)
 
 ## Building
+Yoga builds with [buck](https://buckbuild.com). Make sure you install buck before contributing to Yoga. Yoga's main implementation is in C, with bindings to supported languages and frameworks. When making changes to Yoga please ensure the changes are also propagated to these bindings when applicable.
 
-Yoga's main implementation targets C++ 20 with accompanying build logic in CMake. A wrapper is provided to build the main library and run unit tests.
+## Testing
+For testing we rely on [gtest](https://github.com/google/googletest) as a submodule. After cloning Yoga run `git submodule init` followed by `git submodule update`.
 
-```sh
-./unit_tests <Debug|Release>
-```
+For any changes you make you should ensure that all the tests are passing. In case you make any fixes or additions to the library please also add tests for that change to ensure we don't break anything in the future. Tests are located in the `tests` directory. Run the tests by executing `buck test //:yoga`.
 
-While not required, this script will use [ninja](https://ninja-build.org/) if it is installed for faster builds.
-
-Yoga is additionally part of the [vcpkg](https://github.com/Microsoft/vcpkg/) collection of ports maintained by Microsoft and community contributors. If the version is out of date, please [create an issue or pull request](https://github.com/Microsoft/vcpkg) on the vcpkg repository.
-
-## Adding Tests
-
-Many of Yoga's tests are automatically generated, using HTML fixtures describing node structure. These are rendered in Chrome to generate an expected layout result for the tree. New fixtures can be added to `gentest/fixtures`.
+Instead of manually writing a test which ensures parity with web implementations of Flexbox you can run `gentest/gentest.rb` to generate a test for you. You can write html which you want to verify in Yoga, in `gentest/fixtures` folder, such as the following.
 
 ```html
 <div id="my_test" style="width: 100px; height: 100px; align-items: center;">
@@ -24,12 +16,33 @@ Many of Yoga's tests are automatically generated, using HTML fixtures describing
 </div>
 ```
 
-To generate new tests from added fixtures:
+Run `gentest/gentest.rb` to generate test code and re-run `buck test //:yoga` to validate the behavior. One test case will be generated for every root `div` in the input html.
 
-1. Ensure you have [yarn classic](https://classic.yarnpkg.com) installed.
-2. Run `yarn install` to install dependencies for the test generator.
-3. Run `yarn gentest` in the `yoga` directory.
+You may need to install the latest watir-webdriver gem (`gem install watir-webdriver`) and [ChromeDriver](https://sites.google.com/a/chromium.org/chromedriver/) to run `gentest/gentest.rb` Ruby script.
 
-## Debugging
+### .NET
+.NET testing is not integrated in buck yet, you might need to set up .NET testing environment. We have a script which to launch C# test on macOS, `csharp/tests/Facebook.Yoga/test_macos.sh`.
 
-Yoga provides a VSCode "launch.json" configuration which allows debugging unit tests. Simply add your breakpoints, and run "Debug C++ Unit tests (lldb)" (or "Debug C++ Unit tests (vsdbg)" on Windows).
+## Benchmarks
+Benchmarks are located in `benchmark/YGBenchmark.c` and can be run with `buck run //benchmark:benchmark`. If you think your change has affected performance please run this before and after your change to validate that nothing has regressed. Benchmarks are run on every commit in CI.
+
+### JavaScript
+Installing through NPM
+```sh
+npm install yoga-layout
+```
+By default this will install the library and try to build for all platforms (node, browser asm, and standalone webpack). You may receive errors if you do not have the required platform development tools already installed. To preset the platform you'd like to build for you can set a .npmrc property first.
+```sh
+npm config set yoga-layout:platform standalone
+```
+This will now only run the standalone webpack build upon install.
+
+## Build Platforms
+
+| name           | description                                     |
+|----------------|-------------------------------------------------|
+| all (default)  | Builds all of these platforms.                  |
+| browser        | Builds asm js browser version.                  |
+| node           | Builds node js version.                         |
+| standalone     | Runs webpack.                                   |
+| none           | Does nothing. You can use the prepackaged libs. |

Yoga.podspec

@@ -1,52 +1,39 @@
-# Copyright (c) Meta Platforms, Inc. and affiliates.
 #
-# This source code is licensed under the MIT license found in the
-# LICENSE file in the root directory of this source tree.
-
-
+#  Copyright (c) Facebook, Inc. and its affiliates.
+#
+#  This source code is licensed under the MIT license found in the LICENSE
+#  file in the root directory of this source tree.
+#
 Pod::Spec.new do |spec|
   spec.name = 'Yoga'
-  spec.version = '3.0.0'
+  spec.version = '1.14.0'
   spec.license =  { :type => 'MIT', :file => "LICENSE" }
-  spec.homepage = 'https://yogalayout.dev/'
-  spec.documentation_url = 'https://yogalayout.dev/docs'
+  spec.homepage = 'https://yogalayout.com/'
+  spec.documentation_url = 'https://yogalayout.com/docs'
 
-  spec.summary = 'An embeddable and performant flexbox layout engine with bindings for multiple languages'
+  spec.summary = 'Yoga is a cross-platform layout engine which implements Flexbox.'
+  spec.description = 'Yoga is a cross-platform layout engine enabling maximum collaboration within your team by implementing an API many designers are familiar with, and opening it up to developers across different platforms.'
 
-  spec.authors = {'Meta Open Source' => 'opensource@meta.com'}
+  spec.authors = 'Facebook'
   spec.source = {
     :git => 'https://github.com/facebook/yoga.git',
-    :tag => "v#{spec.version.to_s}",
+    :tag => spec.version.to_s,
   }
-
-  spec.ios.deployment_target = "13.4"
-
+  spec.platforms = { :ios => "8.0", :osx => "10.7", :tvos => "10.0", :watchos => "2.0" }
   spec.module_name = 'yoga'
   spec.requires_arc = false
   spec.pod_target_xcconfig = {
-    'DEFINES_MODULE' => 'YES',
-    'HEADER_SEARCH_PATHS' => '"$(PODS_TARGET_SRCROOT)"',
+    'DEFINES_MODULE' => 'YES'
   }
-
   spec.compiler_flags = [
       '-fno-omit-frame-pointer',
       '-fexceptions',
       '-Wall',
       '-Werror',
-      '-Wextra',
-      '-Wconversion',
-      '-std=c++20',
+      '-std=c++1y',
       '-fPIC'
   ]
+  spec.source_files = 'yoga/**/*.{c,h,cpp}'
+  spec.public_header_files = 'yoga/{Yoga,YGEnums,YGMacros,YGValue}.h'
 
-  spec.swift_version = '5.1'
-  spec.source_files = 'yoga/**/*.{h,cpp}'
-  spec.header_mappings_dir = 'yoga'
-
-  public_header_files = 'yoga/*.h'
-  spec.public_header_files = public_header_files
-
-  all_header_files = 'yoga/**/*.h'
-  spec.private_header_files = Dir.glob(all_header_files) - Dir.glob(public_header_files)
-  spec.preserve_paths = [all_header_files]
 end

YogaDev.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:YogaDev/YogaDev.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:ReactYoga.xcodeproj">
+   </FileRef>
+</Workspace>

YogaDev.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

YogaDev/YogaDev.xcodeproj/project.pbxproj

@@ -0,0 +1,350 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 50;
+	objects = {
+
+/* Begin PBXBuildFile section */
+		6D4C7FA42249476900CBB1EC /* YGMarker.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7F892249476700CBB1EC /* YGMarker.cpp */; };
+		6D4C7FA52249476900CBB1EC /* YGValue.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7F8B2249476700CBB1EC /* YGValue.cpp */; };
+		6D4C7FA62249476900CBB1EC /* YGLayout.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7F902249476700CBB1EC /* YGLayout.cpp */; };
+		6D4C7FA72249476900CBB1EC /* YGNodePrint.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7F922249476700CBB1EC /* YGNodePrint.cpp */; };
+		6D4C7FA82249476900CBB1EC /* YGStyle.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7F992249476800CBB1EC /* YGStyle.cpp */; };
+		6D4C7FA92249476900CBB1EC /* log.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7F9A2249476800CBB1EC /* log.cpp */; };
+		6D4C7FAA2249476900CBB1EC /* YGNode.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7F9B2249476800CBB1EC /* YGNode.cpp */; };
+		6D4C7FAB2249476900CBB1EC /* Yoga.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7F9C2249476800CBB1EC /* Yoga.cpp */; };
+		6D4C7FAC2249476900CBB1EC /* Utils.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7F9D2249476800CBB1EC /* Utils.cpp */; };
+		6D4C7FAD2249476900CBB1EC /* YGEnums.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7F9E2249476800CBB1EC /* YGEnums.cpp */; };
+		6D4C7FAE2249476900CBB1EC /* YGConfig.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 6D4C7FA32249476800CBB1EC /* YGConfig.cpp */; };
+/* End PBXBuildFile section */
+
+/* Begin PBXCopyFilesBuildPhase section */
+		6D4C7F76224945B200CBB1EC /* CopyFiles */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 2147483647;
+			dstPath = "include/$(PRODUCT_NAME)";
+			dstSubfolderSpec = 16;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		6D4C7F78224945B200CBB1EC /* libYogaDev.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = libYogaDev.a; sourceTree = BUILT_PRODUCTS_DIR; };
+		6D4C7F892249476700CBB1EC /* YGMarker.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = YGMarker.cpp; path = ../yoga/YGMarker.cpp; sourceTree = "<group>"; };
+		6D4C7F8A2249476700CBB1EC /* Utils.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = Utils.h; path = ../yoga/Utils.h; sourceTree = "<group>"; };
+		6D4C7F8B2249476700CBB1EC /* YGValue.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = YGValue.cpp; path = ../yoga/YGValue.cpp; sourceTree = "<group>"; };
+		6D4C7F8C2249476700CBB1EC /* instrumentation.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = instrumentation.h; path = ../yoga/instrumentation.h; sourceTree = "<group>"; };
+		6D4C7F8D2249476700CBB1EC /* YGStyle.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = YGStyle.h; path = ../yoga/YGStyle.h; sourceTree = "<group>"; };
+		6D4C7F8E2249476700CBB1EC /* YGNodePrint.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = YGNodePrint.h; path = ../yoga/YGNodePrint.h; sourceTree = "<group>"; };
+		6D4C7F8F2249476700CBB1EC /* YGMarker.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = YGMarker.h; path = ../yoga/YGMarker.h; sourceTree = "<group>"; };
+		6D4C7F902249476700CBB1EC /* YGLayout.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = YGLayout.cpp; path = ../yoga/YGLayout.cpp; sourceTree = "<group>"; };
+		6D4C7F912249476700CBB1EC /* YGEnums.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = YGEnums.h; path = ../yoga/YGEnums.h; sourceTree = "<group>"; };
+		6D4C7F922249476700CBB1EC /* YGNodePrint.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = YGNodePrint.cpp; path = ../yoga/YGNodePrint.cpp; sourceTree = "<group>"; };
+		6D4C7F932249476700CBB1EC /* YGMacros.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = YGMacros.h; path = ../yoga/YGMacros.h; sourceTree = "<group>"; };
+		6D4C7F942249476700CBB1EC /* log.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = log.h; path = ../yoga/log.h; sourceTree = "<group>"; };
+		6D4C7F952249476800CBB1EC /* YGFloatOptional.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = YGFloatOptional.h; path = ../yoga/YGFloatOptional.h; sourceTree = "<group>"; };
+		6D4C7F962249476800CBB1EC /* YGNode.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = YGNode.h; path = ../yoga/YGNode.h; sourceTree = "<group>"; };
+		6D4C7F972249476800CBB1EC /* YGLayout.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = YGLayout.h; path = ../yoga/YGLayout.h; sourceTree = "<group>"; };
+		6D4C7F982249476800CBB1EC /* CompactValue.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = CompactValue.h; path = ../yoga/CompactValue.h; sourceTree = "<group>"; };
+		6D4C7F992249476800CBB1EC /* YGStyle.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = YGStyle.cpp; path = ../yoga/YGStyle.cpp; sourceTree = "<group>"; };
+		6D4C7F9A2249476800CBB1EC /* log.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = log.cpp; path = ../yoga/log.cpp; sourceTree = "<group>"; };
+		6D4C7F9B2249476800CBB1EC /* YGNode.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = YGNode.cpp; path = ../yoga/YGNode.cpp; sourceTree = "<group>"; };
+		6D4C7F9C2249476800CBB1EC /* Yoga.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Yoga.cpp; path = ../yoga/Yoga.cpp; sourceTree = "<group>"; };
+		6D4C7F9D2249476800CBB1EC /* Utils.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = Utils.cpp; path = ../yoga/Utils.cpp; sourceTree = "<group>"; };
+		6D4C7F9E2249476800CBB1EC /* YGEnums.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = YGEnums.cpp; path = ../yoga/YGEnums.cpp; sourceTree = "<group>"; };
+		6D4C7F9F2249476800CBB1EC /* Yoga-internal.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = "Yoga-internal.h"; path = "../yoga/Yoga-internal.h"; sourceTree = "<group>"; };
+		6D4C7FA02249476800CBB1EC /* YGValue.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = YGValue.h; path = ../yoga/YGValue.h; sourceTree = "<group>"; };
+		6D4C7FA12249476800CBB1EC /* Yoga.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = Yoga.h; path = ../yoga/Yoga.h; sourceTree = "<group>"; };
+		6D4C7FA22249476800CBB1EC /* YGConfig.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = YGConfig.h; path = ../yoga/YGConfig.h; sourceTree = "<group>"; };
+		6D4C7FA32249476800CBB1EC /* YGConfig.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = YGConfig.cpp; path = ../yoga/YGConfig.cpp; sourceTree = "<group>"; };
+/* End PBXFileReference section */
+
+/* Begin PBXFrameworksBuildPhase section */
+		6D4C7F75224945B200CBB1EC /* Frameworks */ = {
+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXFrameworksBuildPhase section */
+
+/* Begin PBXGroup section */
+		6D4C7F6F224945B200CBB1EC = {
+			isa = PBXGroup;
+			children = (
+				6D4C7F982249476800CBB1EC /* CompactValue.h */,
+				6D4C7F8C2249476700CBB1EC /* instrumentation.h */,
+				6D4C7F9A2249476800CBB1EC /* log.cpp */,
+				6D4C7F942249476700CBB1EC /* log.h */,
+				6D4C7F9D2249476800CBB1EC /* Utils.cpp */,
+				6D4C7F8A2249476700CBB1EC /* Utils.h */,
+				6D4C7FA32249476800CBB1EC /* YGConfig.cpp */,
+				6D4C7FA22249476800CBB1EC /* YGConfig.h */,
+				6D4C7F9E2249476800CBB1EC /* YGEnums.cpp */,
+				6D4C7F912249476700CBB1EC /* YGEnums.h */,
+				6D4C7F952249476800CBB1EC /* YGFloatOptional.h */,
+				6D4C7F902249476700CBB1EC /* YGLayout.cpp */,
+				6D4C7F972249476800CBB1EC /* YGLayout.h */,
+				6D4C7F932249476700CBB1EC /* YGMacros.h */,
+				6D4C7F892249476700CBB1EC /* YGMarker.cpp */,
+				6D4C7F8F2249476700CBB1EC /* YGMarker.h */,
+				6D4C7F9B2249476800CBB1EC /* YGNode.cpp */,
+				6D4C7F962249476800CBB1EC /* YGNode.h */,
+				6D4C7F922249476700CBB1EC /* YGNodePrint.cpp */,
+				6D4C7F8E2249476700CBB1EC /* YGNodePrint.h */,
+				6D4C7F992249476800CBB1EC /* YGStyle.cpp */,
+				6D4C7F8D2249476700CBB1EC /* YGStyle.h */,
+				6D4C7F8B2249476700CBB1EC /* YGValue.cpp */,
+				6D4C7FA02249476800CBB1EC /* YGValue.h */,
+				6D4C7F9F2249476800CBB1EC /* Yoga-internal.h */,
+				6D4C7F9C2249476800CBB1EC /* Yoga.cpp */,
+				6D4C7FA12249476800CBB1EC /* Yoga.h */,
+				6D4C7F79224945B200CBB1EC /* Products */,
+			);
+			sourceTree = "<group>";
+		};
+		6D4C7F79224945B200CBB1EC /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				6D4C7F78224945B200CBB1EC /* libYogaDev.a */,
+			);
+			name = Products;
+			sourceTree = "<group>";
+		};
+/* End PBXGroup section */
+
+/* Begin PBXNativeTarget section */
+		6D4C7F77224945B200CBB1EC /* YogaDev */ = {
+			isa = PBXNativeTarget;
+			buildConfigurationList = 6D4C7F81224945B200CBB1EC /* Build configuration list for PBXNativeTarget "YogaDev" */;
+			buildPhases = (
+				6D4C7F74224945B200CBB1EC /* Sources */,
+				6D4C7F75224945B200CBB1EC /* Frameworks */,
+				6D4C7F76224945B200CBB1EC /* CopyFiles */,
+			);
+			buildRules = (
+			);
+			dependencies = (
+			);
+			name = YogaDev;
+			productName = YogaDev;
+			productReference = 6D4C7F78224945B200CBB1EC /* libYogaDev.a */;
+			productType = "com.apple.product-type.library.static";
+		};
+/* End PBXNativeTarget section */
+
+/* Begin PBXProject section */
+		6D4C7F70224945B200CBB1EC /* Project object */ = {
+			isa = PBXProject;
+			attributes = {
+				LastUpgradeCheck = 1010;
+				ORGANIZATIONNAME = "Will Wilson";
+				TargetAttributes = {
+					6D4C7F77224945B200CBB1EC = {
+						CreatedOnToolsVersion = 10.1;
+					};
+				};
+			};
+			buildConfigurationList = 6D4C7F73224945B200CBB1EC /* Build configuration list for PBXProject "YogaDev" */;
+			compatibilityVersion = "Xcode 9.3";
+			developmentRegion = en;
+			hasScannedForEncodings = 0;
+			knownRegions = (
+				en,
+			);
+			mainGroup = 6D4C7F6F224945B200CBB1EC;
+			productRefGroup = 6D4C7F79224945B200CBB1EC /* Products */;
+			projectDirPath = "";
+			projectRoot = "";
+			targets = (
+				6D4C7F77224945B200CBB1EC /* YogaDev */,
+			);
+		};
+/* End PBXProject section */
+
+/* Begin PBXSourcesBuildPhase section */
+		6D4C7F74224945B200CBB1EC /* Sources */ = {
+			isa = PBXSourcesBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+				6D4C7FAD2249476900CBB1EC /* YGEnums.cpp in Sources */,
+				6D4C7FAE2249476900CBB1EC /* YGConfig.cpp in Sources */,
+				6D4C7FAA2249476900CBB1EC /* YGNode.cpp in Sources */,
+				6D4C7FAB2249476900CBB1EC /* Yoga.cpp in Sources */,
+				6D4C7FA92249476900CBB1EC /* log.cpp in Sources */,
+				6D4C7FA62249476900CBB1EC /* YGLayout.cpp in Sources */,
+				6D4C7FAC2249476900CBB1EC /* Utils.cpp in Sources */,
+				6D4C7FA82249476900CBB1EC /* YGStyle.cpp in Sources */,
+				6D4C7FA42249476900CBB1EC /* YGMarker.cpp in Sources */,
+				6D4C7FA52249476900CBB1EC /* YGValue.cpp in Sources */,
+				6D4C7FA72249476900CBB1EC /* YGNodePrint.cpp in Sources */,
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
+/* End PBXSourcesBuildPhase section */
+
+/* Begin XCBuildConfiguration section */
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+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
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+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
+				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
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+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
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+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
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+				COPY_PHASE_STRIP = NO;
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+				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;
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+				GCC_WARN_UNUSED_FUNCTION = YES;
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+			};
+			name = Debug;
+		};
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+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_NONNULL = YES;
+				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
+				CLANG_CXX_LANGUAGE_STANDARD = "gnu++14";
+				CLANG_CXX_LIBRARY = "libc++";
+				CLANG_ENABLE_MODULES = YES;
+				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_ENABLE_OBJC_WEAK = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
+				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
+				CLANG_WARN_CONSTANT_CONVERSION = YES;
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+				CLANG_WARN_ENUM_CONVERSION = YES;
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+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
+				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
+				CLANG_WARN_UNREACHABLE_CODE = YES;
+				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
+				CODE_SIGN_IDENTITY = "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 = gnu11;
+				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 = 12.1;
+				MTL_ENABLE_DEBUG_INFO = NO;
+				MTL_FAST_MATH = YES;
+				SDKROOT = iphoneos;
+				VALIDATE_PRODUCT = YES;
+			};
+			name = Release;
+		};
+		6D4C7F82224945B200CBB1EC /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				OTHER_LDFLAGS = "-ObjC";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SKIP_INSTALL = YES;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Debug;
+		};
+		6D4C7F83224945B200CBB1EC /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				CODE_SIGN_STYLE = Automatic;
+				OTHER_LDFLAGS = "-ObjC";
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SKIP_INSTALL = YES;
+				TARGETED_DEVICE_FAMILY = "1,2";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		6D4C7F73224945B200CBB1EC /* Build configuration list for PBXProject "YogaDev" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				6D4C7F7F224945B200CBB1EC /* Debug */,
+				6D4C7F80224945B200CBB1EC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		6D4C7F81224945B200CBB1EC /* Build configuration list for PBXNativeTarget "YogaDev" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				6D4C7F82224945B200CBB1EC /* Debug */,
+				6D4C7F83224945B200CBB1EC /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 6D4C7F70224945B200CBB1EC /* Project object */;
+}

YogaKit.podspec

@@ -0,0 +1,35 @@
+#
+#  Copyright (c) Facebook, Inc. and its affiliates.
+#
+#  This source code is licensed under the MIT license found in the LICENSE
+#  file in the root directory of this source tree.
+#
+podspec = Pod::Spec.new do |spec|
+  spec.name = 'YogaKit'
+  spec.version = '1.14.0'
+  spec.license =  { :type => 'MIT', :file => "LICENSE" }
+  spec.homepage = 'https://facebook.github.io/yoga/'
+  spec.documentation_url = 'https://facebook.github.io/yoga/docs/'
+
+  spec.summary = 'Yoga is a cross-platform layout engine which implements Flexbox.'
+  spec.description = 'Yoga is a cross-platform layout engine enabling maximum collaboration within your team by implementing an API many designers are familiar with, and opening it up to developers across different platforms.'
+
+  spec.authors = 'Facebook'
+  spec.source = {
+    :git => 'https://github.com/facebook/yoga.git',
+    :tag => spec.version.to_s,
+  }
+
+  spec.platform = :ios
+  spec.ios.deployment_target = '8.0'
+  spec.ios.frameworks = 'UIKit'
+  spec.dependency 'Yoga', '~> 1.14'
+  spec.source_files = 'YogaKit/Source/*.{h,m,swift}'
+  spec.public_header_files = 'YogaKit/Source/{YGLayout,UIView+Yoga}.h'
+  spec.private_header_files = 'YogaKit/Source/YGLayout+Private.h'
+  spec.swift_version = '4.0'
+end
+
+# See https://github.com/facebook/yoga/pull/366
+podspec.attributes_hash["readme"] = "YogaKit/README.md"
+podspec

YogaKit/.swift-version

@@ -0,0 +1 @@
+3.0.2

YogaKit/BUCK

@@ -0,0 +1,64 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+load("//tools/build_defs/oss:yoga_defs.bzl", "subdir_glob", "yoga_apple_library", "yoga_apple_test", "yoga_dep")
+
+COMPILER_FLAGS = [
+    "-fobjc-arc",
+    "-Wconditional-uninitialized",
+    "-Wdangling-else",
+    "-Wdeprecated-declarations",
+    "-Wimplicit-retain-self",
+    "-Wincomplete-implementation",
+    "-Wobjc-method-access",
+    "-Wobjc-missing-super-calls",
+    "-Wmismatched-return-types",
+    "-Wreturn-type",
+    "-Wno-global-constructors",
+    "-Wno-shadow",
+    "-Wunused-const-variable",
+    "-Wunused-function",
+    "-Wunused-property-ivar",
+    "-Wunused-result",
+    "-Wunused-value",
+]
+
+yoga_apple_library(
+    name = "YogaKit",
+    srcs = glob(["Source/**/*.m"]),
+    header_namespace = "",
+    exported_headers = subdir_glob(
+        [
+            ("", "Source/**/*.h"),
+            ("Source", "**/*.h"),
+        ],
+        prefix = "YogaKit",
+    ),
+    compiler_flags = COMPILER_FLAGS,
+    frameworks = [
+        "$SDKROOT/System/Library/Frameworks/Foundation.framework",
+        "$SDKROOT/System/Library/Frameworks/UIKit.framework",
+    ],
+    header_path_prefix = "",
+    link_whole = True,
+    visibility = ["PUBLIC"],
+    deps = [
+        yoga_dep(":yoga"),
+    ],
+)
+
+yoga_apple_test(
+    name = "YogaKitTests",
+    srcs = glob(["Tests/**/*.m"]),
+    compiler_flags = COMPILER_FLAGS,
+    frameworks = [
+        "$PLATFORM_DIR/Developer/Library/Frameworks/XCTest.framework",
+        "$SDKROOT/System/Library/Frameworks/CoreGraphics.framework",
+    ],
+    info_plist = "Tests/Info.plist",
+    visibility = ["PUBLIC"],
+    deps = [
+        ":YogaKit",
+    ],
+)

YogaKit/README.md

@@ -0,0 +1,22 @@
+# YogaKit
+
+[![CocoaPods](https://img.shields.io/cocoapods/v/YogaKit.svg?style=flat)](https://cocoapods.org/pods/YogaKit)
+[![Platform](https://img.shields.io/badge/platforms-iOS-orange.svg)](https://facebook.github.io/yoga/docs/api/yogakit/)
+[![Languages](https://img.shields.io/badge/languages-ObjC%20%7C%20Swift-orange.svg)](https://facebook.github.io/yoga/docs/api/yogakit/)
+
+## Installation
+YogaKit is available to install via [CocoaPods](https://cocoapods.org/).
+
+```
+pod 'YogaKit', '~> 1.7'
+```
+
+## Getting Started
+Checkout the docs [here](https://facebook.github.io/yoga/docs/api/yogakit/).
+
+We also have a sample project. To try it out, clone this repo and open `YogaKitSample.xcodeproj` in the [YogaKitSample](https://github.com/facebook/yoga/tree/master/YogaKit/YogaKitSample) directory.
+
+## Contributing
+We welcome all pull-requests! At Facebook we sync the open source version of `YogaKit` daily, so we're always testing the latest changes.
+
+See the [CONTRIBUTING.md](https://github.com/facebook/yoga/blob/master/CONTRIBUTING.md) file for how to help out.

YogaKit/Source/UIView+Yoga.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+#import "YGLayout.h"
+#import <UIKit/UIKit.h>
+
+NS_ASSUME_NONNULL_BEGIN
+
+typedef void (^YGLayoutConfigurationBlock)(YGLayout *layout);
+
+@interface UIView (Yoga)
+
+/**
+ The YGLayout that is attached to this view. It is lazily created.
+ */
+@property (nonatomic, readonly, strong) YGLayout *yoga;
+/**
+ Indicates whether or not Yoga is enabled
+ */
+@property (nonatomic, readonly, assign) BOOL isYogaEnabled;
+
+/**
+ In ObjC land, every time you access `view.yoga.*` you are adding another `objc_msgSend`
+ to your code. If you plan on making multiple changes to YGLayout, it's more performant
+ to use this method, which uses a single objc_msgSend call.
+ */
+- (void)configureLayoutWithBlock:(YGLayoutConfigurationBlock)block
+    NS_SWIFT_NAME(configureLayout(block:));
+
+@end
+
+NS_ASSUME_NONNULL_END

YogaKit/Source/UIView+Yoga.m

@@ -0,0 +1,39 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "UIView+Yoga.h"
+#import "YGLayout+Private.h"
+#import <objc/runtime.h>
+
+static const void *kYGYogaAssociatedKey = &kYGYogaAssociatedKey;
+
+@implementation UIView (YogaKit)
+
+- (YGLayout *)yoga
+{
+  YGLayout *yoga = objc_getAssociatedObject(self, kYGYogaAssociatedKey);
+  if (!yoga) {
+    yoga = [[YGLayout alloc] initWithView:self];
+    objc_setAssociatedObject(self, kYGYogaAssociatedKey, yoga, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
+  }
+
+  return yoga;
+}
+
+- (BOOL)isYogaEnabled
+{
+  return objc_getAssociatedObject(self, kYGYogaAssociatedKey) != nil;
+}
+
+- (void)configureLayoutWithBlock:(YGLayoutConfigurationBlock)block
+{
+  if (block != nil) {
+    block(self.yoga);
+  }
+}
+
+@end

YogaKit/Source/YGLayout+Private.h

@@ -0,0 +1,16 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+#import "YGLayout.h"
+#import <yoga/Yoga.h>
+
+@interface YGLayout ()
+
+@property (nonatomic, assign, readonly) YGNodeRef node;
+
+- (instancetype)initWithView:(UIView *)view;
+
+@end

YogaKit/Source/YGLayout.h

@@ -0,0 +1,169 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+#import <UIKit/UIKit.h>
+#import <yoga/YGEnums.h>
+#import <yoga/Yoga.h>
+#import <yoga/YGMacros.h>
+
+YG_EXTERN_C_BEGIN
+
+extern YGValue YGPointValue(CGFloat value)
+    NS_SWIFT_UNAVAILABLE("Use the swift Int and FloatingPoint extensions instead");
+extern YGValue YGPercentValue(CGFloat value)
+    NS_SWIFT_UNAVAILABLE("Use the swift Int and FloatingPoint extensions instead");
+
+YG_EXTERN_C_END
+
+typedef NS_OPTIONS(NSInteger, YGDimensionFlexibility) {
+  YGDimensionFlexibilityFlexibleWidth = 1 << 0,
+  YGDimensionFlexibilityFlexibleHeight = 1 << 1,
+};
+
+@interface YGLayout : NSObject
+
+/**
+ Make default init unavailable, as it will not initialise YGNode which is
+ required for the setters and getters of YGLayout's properties to work properly.
+*/
+- (instancetype)init
+    __attribute__((unavailable("you are not meant to initialise YGLayout")));
+
+/**
+ Make default init unavailable, as it will not initialise YGNode which is
+ required for the setters and getters of YGLayout's properties to work properly.
+ */
++ (instancetype)new
+    __attribute__((unavailable("you are not meant to initialise YGLayout")));
+
+/**
+  The property that decides if we should include this view when calculating
+  layout. Defaults to YES.
+ */
+@property (nonatomic, readwrite, assign, setter=setIncludedInLayout:) BOOL isIncludedInLayout;
+
+/**
+ The property that decides during layout/sizing whether or not styling properties should be applied.
+ Defaults to NO.
+ */
+@property (nonatomic, readwrite, assign, setter=setEnabled:) BOOL isEnabled;
+
+@property (nonatomic, readwrite, assign) YGDirection direction;
+@property (nonatomic, readwrite, assign) YGFlexDirection flexDirection;
+@property (nonatomic, readwrite, assign) YGJustify justifyContent;
+@property (nonatomic, readwrite, assign) YGAlign alignContent;
+@property (nonatomic, readwrite, assign) YGAlign alignItems;
+@property (nonatomic, readwrite, assign) YGAlign alignSelf;
+@property (nonatomic, readwrite, assign) YGPositionType position;
+@property (nonatomic, readwrite, assign) YGWrap flexWrap;
+@property (nonatomic, readwrite, assign) YGOverflow overflow;
+@property (nonatomic, readwrite, assign) YGDisplay display;
+
+@property (nonatomic, readwrite, assign) CGFloat flex;
+@property (nonatomic, readwrite, assign) CGFloat flexGrow;
+@property (nonatomic, readwrite, assign) CGFloat flexShrink;
+@property (nonatomic, readwrite, assign) YGValue flexBasis;
+
+@property (nonatomic, readwrite, assign) YGValue left;
+@property (nonatomic, readwrite, assign) YGValue top;
+@property (nonatomic, readwrite, assign) YGValue right;
+@property (nonatomic, readwrite, assign) YGValue bottom;
+@property (nonatomic, readwrite, assign) YGValue start;
+@property (nonatomic, readwrite, assign) YGValue end;
+
+@property (nonatomic, readwrite, assign) YGValue marginLeft;
+@property (nonatomic, readwrite, assign) YGValue marginTop;
+@property (nonatomic, readwrite, assign) YGValue marginRight;
+@property (nonatomic, readwrite, assign) YGValue marginBottom;
+@property (nonatomic, readwrite, assign) YGValue marginStart;
+@property (nonatomic, readwrite, assign) YGValue marginEnd;
+@property (nonatomic, readwrite, assign) YGValue marginHorizontal;
+@property (nonatomic, readwrite, assign) YGValue marginVertical;
+@property (nonatomic, readwrite, assign) YGValue margin;
+
+@property (nonatomic, readwrite, assign) YGValue paddingLeft;
+@property (nonatomic, readwrite, assign) YGValue paddingTop;
+@property (nonatomic, readwrite, assign) YGValue paddingRight;
+@property (nonatomic, readwrite, assign) YGValue paddingBottom;
+@property (nonatomic, readwrite, assign) YGValue paddingStart;
+@property (nonatomic, readwrite, assign) YGValue paddingEnd;
+@property (nonatomic, readwrite, assign) YGValue paddingHorizontal;
+@property (nonatomic, readwrite, assign) YGValue paddingVertical;
+@property (nonatomic, readwrite, assign) YGValue padding;
+
+@property (nonatomic, readwrite, assign) CGFloat borderLeftWidth;
+@property (nonatomic, readwrite, assign) CGFloat borderTopWidth;
+@property (nonatomic, readwrite, assign) CGFloat borderRightWidth;
+@property (nonatomic, readwrite, assign) CGFloat borderBottomWidth;
+@property (nonatomic, readwrite, assign) CGFloat borderStartWidth;
+@property (nonatomic, readwrite, assign) CGFloat borderEndWidth;
+@property (nonatomic, readwrite, assign) CGFloat borderWidth;
+
+@property (nonatomic, readwrite, assign) YGValue width;
+@property (nonatomic, readwrite, assign) YGValue height;
+@property (nonatomic, readwrite, assign) YGValue minWidth;
+@property (nonatomic, readwrite, assign) YGValue minHeight;
+@property (nonatomic, readwrite, assign) YGValue maxWidth;
+@property (nonatomic, readwrite, assign) YGValue maxHeight;
+
+// Yoga specific properties, not compatible with flexbox specification
+@property (nonatomic, readwrite, assign) CGFloat aspectRatio;
+
+/**
+ Get the resolved direction of this node. This won't be YGDirectionInherit
+ */
+@property (nonatomic, readonly, assign) YGDirection resolvedDirection;
+
+/**
+ Perform a layout calculation and update the frames of the views in the hierarchy with the results.
+ If the origin is not preserved, the root view's layout results will applied from {0,0}.
+ */
+- (void)applyLayoutPreservingOrigin:(BOOL)preserveOrigin
+    NS_SWIFT_NAME(applyLayout(preservingOrigin:));
+
+/**
+ Perform a layout calculation and update the frames of the views in the hierarchy with the results.
+ If the origin is not preserved, the root view's layout results will applied from {0,0}.
+ */
+- (void)applyLayoutPreservingOrigin:(BOOL)preserveOrigin
+               dimensionFlexibility:(YGDimensionFlexibility)dimensionFlexibility
+    NS_SWIFT_NAME(applyLayout(preservingOrigin:dimensionFlexibility:));
+
+/**
+ Returns the size of the view if no constraints were given. This could equivalent to calling [self
+ sizeThatFits:CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX)];
+ */
+@property (nonatomic, readonly, assign) CGSize intrinsicSize;
+
+/**
+  Returns the size of the view based on provided constraints. Pass NaN for an unconstrained dimension.
+ */
+- (CGSize)calculateLayoutWithSize:(CGSize)size
+    NS_SWIFT_NAME(calculateLayout(with:));
+
+/**
+ Returns the number of children that are using Flexbox.
+ */
+@property (nonatomic, readonly, assign) NSUInteger numberOfChildren;
+
+/**
+ Return a BOOL indiciating whether or not we this node contains any subviews that are included in
+ Yoga's layout.
+ */
+@property (nonatomic, readonly, assign) BOOL isLeaf;
+
+/**
+ Return's a BOOL indicating if a view is dirty. When a node is dirty
+ it usually indicates that it will be remeasured on the next layout pass.
+ */
+@property (nonatomic, readonly, assign) BOOL isDirty;
+
+/**
+ Mark that a view's layout needs to be recalculated. Only works for leaf views.
+ */
+- (void)markDirty;
+
+@end

YogaKit/Source/YGLayout.m

@@ -0,0 +1,482 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import "YGLayout+Private.h"
+#import "UIView+Yoga.h"
+
+#define YG_PROPERTY(type, lowercased_name, capitalized_name)    \
+- (type)lowercased_name                                         \
+{                                                               \
+  return YGNodeStyleGet##capitalized_name(self.node);           \
+}                                                               \
+                                                                \
+- (void)set##capitalized_name:(type)lowercased_name             \
+{                                                               \
+  YGNodeStyleSet##capitalized_name(self.node, lowercased_name); \
+}
+
+#define YG_VALUE_PROPERTY(lowercased_name, capitalized_name)                       \
+- (YGValue)lowercased_name                                                         \
+{                                                                                  \
+  return YGNodeStyleGet##capitalized_name(self.node);                              \
+}                                                                                  \
+                                                                                   \
+- (void)set##capitalized_name:(YGValue)lowercased_name                             \
+{                                                                                  \
+  switch (lowercased_name.unit) {                                                  \
+     case YGUnitUndefined:                                                         \
+      YGNodeStyleSet##capitalized_name(self.node, lowercased_name.value);          \
+      break;                                                                       \
+    case YGUnitPoint:                                                              \
+      YGNodeStyleSet##capitalized_name(self.node, lowercased_name.value);          \
+      break;                                                                       \
+    case YGUnitPercent:                                                            \
+      YGNodeStyleSet##capitalized_name##Percent(self.node, lowercased_name.value); \
+      break;                                                                       \
+    default:                                                                       \
+      NSAssert(NO, @"Not implemented");                                            \
+  }                                                                                \
+}
+
+#define YG_AUTO_VALUE_PROPERTY(lowercased_name, capitalized_name)                  \
+- (YGValue)lowercased_name                                                         \
+{                                                                                  \
+  return YGNodeStyleGet##capitalized_name(self.node);                              \
+}                                                                                  \
+                                                                                   \
+- (void)set##capitalized_name:(YGValue)lowercased_name                             \
+{                                                                                  \
+  switch (lowercased_name.unit) {                                                  \
+    case YGUnitPoint:                                                              \
+      YGNodeStyleSet##capitalized_name(self.node, lowercased_name.value);          \
+      break;                                                                       \
+    case YGUnitPercent:                                                            \
+      YGNodeStyleSet##capitalized_name##Percent(self.node, lowercased_name.value); \
+      break;                                                                       \
+    case YGUnitAuto:                                                               \
+      YGNodeStyleSet##capitalized_name##Auto(self.node);                           \
+      break;                                                                       \
+    default:                                                                       \
+      NSAssert(NO, @"Not implemented");                                            \
+  }                                                                                \
+}
+
+#define YG_EDGE_PROPERTY_GETTER(type, lowercased_name, capitalized_name, property, edge) \
+- (type)lowercased_name                                                                  \
+{                                                                                        \
+  return YGNodeStyleGet##property(self.node, edge);                                      \
+}
+
+#define YG_EDGE_PROPERTY_SETTER(lowercased_name, capitalized_name, property, edge) \
+- (void)set##capitalized_name:(CGFloat)lowercased_name                             \
+{                                                                                  \
+  YGNodeStyleSet##property(self.node, edge, lowercased_name);                      \
+}
+
+#define YG_EDGE_PROPERTY(lowercased_name, capitalized_name, property, edge)         \
+YG_EDGE_PROPERTY_GETTER(CGFloat, lowercased_name, capitalized_name, property, edge) \
+YG_EDGE_PROPERTY_SETTER(lowercased_name, capitalized_name, property, edge)
+
+#define YG_VALUE_EDGE_PROPERTY_SETTER(objc_lowercased_name, objc_capitalized_name, c_name, edge) \
+- (void)set##objc_capitalized_name:(YGValue)objc_lowercased_name                                 \
+{                                                                                                \
+  switch (objc_lowercased_name.unit) {                                                           \
+    case YGUnitUndefined:                                                                        \
+      YGNodeStyleSet##c_name(self.node, edge, objc_lowercased_name.value);                       \
+      break;                                                                                     \
+    case YGUnitPoint:                                                                            \
+      YGNodeStyleSet##c_name(self.node, edge, objc_lowercased_name.value);                       \
+      break;                                                                                     \
+    case YGUnitPercent:                                                                          \
+      YGNodeStyleSet##c_name##Percent(self.node, edge, objc_lowercased_name.value);              \
+      break;                                                                                     \
+    default:                                                                                     \
+      NSAssert(NO, @"Not implemented");                                                          \
+  }                                                                                              \
+}
+
+#define YG_VALUE_EDGE_PROPERTY(lowercased_name, capitalized_name, property, edge)   \
+YG_EDGE_PROPERTY_GETTER(YGValue, lowercased_name, capitalized_name, property, edge) \
+YG_VALUE_EDGE_PROPERTY_SETTER(lowercased_name, capitalized_name, property, edge)
+
+#define YG_VALUE_EDGES_PROPERTIES(lowercased_name, capitalized_name)                                                  \
+YG_VALUE_EDGE_PROPERTY(lowercased_name##Left, capitalized_name##Left, capitalized_name, YGEdgeLeft)                   \
+YG_VALUE_EDGE_PROPERTY(lowercased_name##Top, capitalized_name##Top, capitalized_name, YGEdgeTop)                      \
+YG_VALUE_EDGE_PROPERTY(lowercased_name##Right, capitalized_name##Right, capitalized_name, YGEdgeRight)                \
+YG_VALUE_EDGE_PROPERTY(lowercased_name##Bottom, capitalized_name##Bottom, capitalized_name, YGEdgeBottom)             \
+YG_VALUE_EDGE_PROPERTY(lowercased_name##Start, capitalized_name##Start, capitalized_name, YGEdgeStart)                \
+YG_VALUE_EDGE_PROPERTY(lowercased_name##End, capitalized_name##End, capitalized_name, YGEdgeEnd)                      \
+YG_VALUE_EDGE_PROPERTY(lowercased_name##Horizontal, capitalized_name##Horizontal, capitalized_name, YGEdgeHorizontal) \
+YG_VALUE_EDGE_PROPERTY(lowercased_name##Vertical, capitalized_name##Vertical, capitalized_name, YGEdgeVertical)       \
+YG_VALUE_EDGE_PROPERTY(lowercased_name, capitalized_name, capitalized_name, YGEdgeAll)
+
+YGValue YGPointValue(CGFloat value)
+{
+  return (YGValue) { .value = value, .unit = YGUnitPoint };
+}
+
+YGValue YGPercentValue(CGFloat value)
+{
+  return (YGValue) { .value = value, .unit = YGUnitPercent };
+}
+
+static YGConfigRef globalConfig;
+
+@interface YGLayout ()
+
+@property (nonatomic, weak, readonly) UIView *view;
+@property(nonatomic, assign, readonly) BOOL isUIView;
+
+@end
+
+@implementation YGLayout
+
+@synthesize isEnabled=_isEnabled;
+@synthesize isIncludedInLayout=_isIncludedInLayout;
+@synthesize node=_node;
+
++ (void)initialize
+{
+  globalConfig = YGConfigNew();
+  YGConfigSetExperimentalFeatureEnabled(globalConfig, YGExperimentalFeatureWebFlexBasis, true);
+  YGConfigSetPointScaleFactor(globalConfig, [UIScreen mainScreen].scale);
+}
+
+- (instancetype)initWithView:(UIView*)view
+{
+  if (self = [super init]) {
+    _view = view;
+    _node = YGNodeNewWithConfig(globalConfig);
+    YGNodeSetContext(_node, (__bridge void *) view);
+    _isEnabled = NO;
+    _isIncludedInLayout = YES;
+    _isUIView = [view isMemberOfClass:[UIView class]];
+  }
+
+  return self;
+}
+
+- (void)dealloc
+{
+  YGNodeFree(self.node);
+}
+
+- (BOOL)isDirty
+{
+  return YGNodeIsDirty(self.node);
+}
+
+- (void)markDirty
+{
+  if (self.isDirty || !self.isLeaf) {
+    return;
+  }
+
+  // Yoga is not happy if we try to mark a node as "dirty" before we have set
+  // the measure function. Since we already know that this is a leaf,
+  // this *should* be fine. Forgive me Hack Gods.
+  const YGNodeRef node = self.node;
+  if (YGNodeHasMeasureFunc(node)) {
+    YGNodeSetMeasureFunc(node, YGMeasureView);
+  }
+
+  YGNodeMarkDirty(node);
+}
+
+- (NSUInteger)numberOfChildren
+{
+  return YGNodeGetChildCount(self.node);
+}
+
+- (BOOL)isLeaf
+{
+  NSAssert([NSThread isMainThread], @"This method must be called on the main thread.");
+  if (self.isEnabled) {
+    for (UIView *subview in self.view.subviews) {
+      YGLayout *const yoga = subview.yoga;
+      if (yoga.isEnabled && yoga.isIncludedInLayout) {
+        return NO;
+      }
+    }
+  }
+
+  return YES;
+}
+
+#pragma mark - Style
+
+- (YGPositionType)position
+{
+  return YGNodeStyleGetPositionType(self.node);
+}
+
+- (void)setPosition:(YGPositionType)position
+{
+  YGNodeStyleSetPositionType(self.node, position);
+}
+
+YG_PROPERTY(YGDirection, direction, Direction)
+YG_PROPERTY(YGFlexDirection, flexDirection, FlexDirection)
+YG_PROPERTY(YGJustify, justifyContent, JustifyContent)
+YG_PROPERTY(YGAlign, alignContent, AlignContent)
+YG_PROPERTY(YGAlign, alignItems, AlignItems)
+YG_PROPERTY(YGAlign, alignSelf, AlignSelf)
+YG_PROPERTY(YGWrap, flexWrap, FlexWrap)
+YG_PROPERTY(YGOverflow, overflow, Overflow)
+YG_PROPERTY(YGDisplay, display, Display)
+
+YG_PROPERTY(CGFloat, flex, Flex)
+YG_PROPERTY(CGFloat, flexGrow, FlexGrow)
+YG_PROPERTY(CGFloat, flexShrink, FlexShrink)
+YG_AUTO_VALUE_PROPERTY(flexBasis, FlexBasis)
+
+YG_VALUE_EDGE_PROPERTY(left, Left, Position, YGEdgeLeft)
+YG_VALUE_EDGE_PROPERTY(top, Top, Position, YGEdgeTop)
+YG_VALUE_EDGE_PROPERTY(right, Right, Position, YGEdgeRight)
+YG_VALUE_EDGE_PROPERTY(bottom, Bottom, Position, YGEdgeBottom)
+YG_VALUE_EDGE_PROPERTY(start, Start, Position, YGEdgeStart)
+YG_VALUE_EDGE_PROPERTY(end, End, Position, YGEdgeEnd)
+YG_VALUE_EDGES_PROPERTIES(margin, Margin)
+YG_VALUE_EDGES_PROPERTIES(padding, Padding)
+
+YG_EDGE_PROPERTY(borderLeftWidth, BorderLeftWidth, Border, YGEdgeLeft)
+YG_EDGE_PROPERTY(borderTopWidth, BorderTopWidth, Border, YGEdgeTop)
+YG_EDGE_PROPERTY(borderRightWidth, BorderRightWidth, Border, YGEdgeRight)
+YG_EDGE_PROPERTY(borderBottomWidth, BorderBottomWidth, Border, YGEdgeBottom)
+YG_EDGE_PROPERTY(borderStartWidth, BorderStartWidth, Border, YGEdgeStart)
+YG_EDGE_PROPERTY(borderEndWidth, BorderEndWidth, Border, YGEdgeEnd)
+YG_EDGE_PROPERTY(borderWidth, BorderWidth, Border, YGEdgeAll)
+
+YG_AUTO_VALUE_PROPERTY(width, Width)
+YG_AUTO_VALUE_PROPERTY(height, Height)
+YG_VALUE_PROPERTY(minWidth, MinWidth)
+YG_VALUE_PROPERTY(minHeight, MinHeight)
+YG_VALUE_PROPERTY(maxWidth, MaxWidth)
+YG_VALUE_PROPERTY(maxHeight, MaxHeight)
+YG_PROPERTY(CGFloat, aspectRatio, AspectRatio)
+
+#pragma mark - Layout and Sizing
+
+- (YGDirection)resolvedDirection
+{
+  return YGNodeLayoutGetDirection(self.node);
+}
+
+- (void)applyLayout
+{
+  [self calculateLayoutWithSize:self.view.bounds.size];
+  YGApplyLayoutToViewHierarchy(self.view, NO);
+}
+
+- (void)applyLayoutPreservingOrigin:(BOOL)preserveOrigin
+{
+  [self calculateLayoutWithSize:self.view.bounds.size];
+  YGApplyLayoutToViewHierarchy(self.view, preserveOrigin);
+}
+
+- (void)applyLayoutPreservingOrigin:(BOOL)preserveOrigin dimensionFlexibility:(YGDimensionFlexibility)dimensionFlexibility
+{
+  CGSize size = self.view.bounds.size;
+  if (dimensionFlexibility & YGDimensionFlexibilityFlexibleWidth) {
+    size.width = YGUndefined;
+  }
+  if (dimensionFlexibility & YGDimensionFlexibilityFlexibleHeight) {
+    size.height = YGUndefined;
+  }
+  [self calculateLayoutWithSize:size];
+  YGApplyLayoutToViewHierarchy(self.view, preserveOrigin);
+}
+
+
+- (CGSize)intrinsicSize
+{
+  const CGSize constrainedSize = {
+    .width = YGUndefined,
+    .height = YGUndefined,
+  };
+  return [self calculateLayoutWithSize:constrainedSize];
+}
+
+- (CGSize)calculateLayoutWithSize:(CGSize)size
+{
+  NSAssert([NSThread isMainThread], @"Yoga calculation must be done on main.");
+  NSAssert(self.isEnabled, @"Yoga is not enabled for this view.");
+
+  YGAttachNodesFromViewHierachy(self.view);
+
+  const YGNodeRef node = self.node;
+  YGNodeCalculateLayout(
+    node,
+    size.width,
+    size.height,
+    YGNodeStyleGetDirection(node));
+
+  return (CGSize) {
+    .width = YGNodeLayoutGetWidth(node),
+    .height = YGNodeLayoutGetHeight(node),
+  };
+}
+
+#pragma mark - Private
+
+static YGSize YGMeasureView(
+  YGNodeRef node,
+  float width,
+  YGMeasureMode widthMode,
+  float height,
+  YGMeasureMode heightMode)
+{
+  const CGFloat constrainedWidth = (widthMode == YGMeasureModeUndefined) ? CGFLOAT_MAX : width;
+  const CGFloat constrainedHeight = (heightMode == YGMeasureModeUndefined) ? CGFLOAT_MAX: height;
+
+  UIView *view = (__bridge UIView*) YGNodeGetContext(node);
+  CGSize sizeThatFits = CGSizeZero;
+
+  // The default implementation of sizeThatFits: returns the existing size of
+  // the view. That means that if we want to layout an empty UIView, which
+  // already has got a frame set, its measured size should be CGSizeZero, but
+  // UIKit returns the existing size.
+  //
+  // See https://github.com/facebook/yoga/issues/606 for more information.
+  if (!view.yoga.isUIView || [view.subviews count] > 0) {
+    sizeThatFits = [view sizeThatFits:(CGSize){
+                                          .width = constrainedWidth,
+                                          .height = constrainedHeight,
+                                      }];
+  }
+
+  return (YGSize) {
+    .width = YGSanitizeMeasurement(constrainedWidth, sizeThatFits.width, widthMode),
+    .height = YGSanitizeMeasurement(constrainedHeight, sizeThatFits.height, heightMode),
+  };
+}
+
+static CGFloat YGSanitizeMeasurement(
+  CGFloat constrainedSize,
+  CGFloat measuredSize,
+  YGMeasureMode measureMode)
+{
+  CGFloat result;
+  if (measureMode == YGMeasureModeExactly) {
+    result = constrainedSize;
+  } else if (measureMode == YGMeasureModeAtMost) {
+    result = MIN(constrainedSize, measuredSize);
+  } else {
+    result = measuredSize;
+  }
+
+  return result;
+}
+
+static BOOL YGNodeHasExactSameChildren(const YGNodeRef node, NSArray<UIView *> *subviews)
+{
+  if (YGNodeGetChildCount(node) != subviews.count) {
+    return NO;
+  }
+
+  for (int i=0; i<subviews.count; i++) {
+    if (YGNodeGetChild(node, i) != subviews[i].yoga.node) {
+      return NO;
+    }
+  }
+
+  return YES;
+}
+
+static void YGAttachNodesFromViewHierachy(UIView *const view)
+{
+  YGLayout *const yoga = view.yoga;
+  const YGNodeRef node = yoga.node;
+
+  // Only leaf nodes should have a measure function
+  if (yoga.isLeaf) {
+    YGRemoveAllChildren(node);
+    YGNodeSetMeasureFunc(node, YGMeasureView);
+  } else {
+    YGNodeSetMeasureFunc(node, NULL);
+
+    NSMutableArray<UIView *> *subviewsToInclude = [[NSMutableArray alloc] initWithCapacity:view.subviews.count];
+    for (UIView *subview in view.subviews) {
+      if (subview.yoga.isEnabled && subview.yoga.isIncludedInLayout) {
+        [subviewsToInclude addObject:subview];
+      }
+    }
+
+    if (!YGNodeHasExactSameChildren(node, subviewsToInclude)) {
+      YGRemoveAllChildren(node);
+      for (int i=0; i<subviewsToInclude.count; i++) {
+        YGNodeInsertChild(node, subviewsToInclude[i].yoga.node, i);
+      }
+    }
+
+    for (UIView *const subview in subviewsToInclude) {
+      YGAttachNodesFromViewHierachy(subview);
+    }
+  }
+}
+
+static void YGRemoveAllChildren(const YGNodeRef node)
+{
+  if (node == NULL) {
+    return;
+  }
+
+  YGNodeRemoveAllChildren(node);
+}
+
+static CGFloat YGRoundPixelValue(CGFloat value)
+{
+  static CGFloat scale;
+  static dispatch_once_t onceToken;
+  dispatch_once(&onceToken, ^(){
+    scale = [UIScreen mainScreen].scale;
+  });
+
+  return roundf(value * scale) / scale;
+}
+
+static void YGApplyLayoutToViewHierarchy(UIView *view, BOOL preserveOrigin)
+{
+  NSCAssert([NSThread isMainThread], @"Framesetting should only be done on the main thread.");
+
+  const YGLayout *yoga = view.yoga;
+
+  if (!yoga.isIncludedInLayout) {
+     return;
+  }
+
+  YGNodeRef node = yoga.node;
+  const CGPoint topLeft = {
+    YGNodeLayoutGetLeft(node),
+    YGNodeLayoutGetTop(node),
+  };
+
+  const CGPoint bottomRight = {
+    topLeft.x + YGNodeLayoutGetWidth(node),
+    topLeft.y + YGNodeLayoutGetHeight(node),
+  };
+
+  const CGPoint origin = preserveOrigin ? view.frame.origin : CGPointZero;
+  view.frame = (CGRect) {
+    .origin = {
+      .x = YGRoundPixelValue(topLeft.x + origin.x),
+      .y = YGRoundPixelValue(topLeft.y + origin.y),
+    },
+    .size = {
+      .width = YGRoundPixelValue(bottomRight.x) - YGRoundPixelValue(topLeft.x),
+      .height = YGRoundPixelValue(bottomRight.y) - YGRoundPixelValue(topLeft.y),
+    },
+  };
+
+  if (!yoga.isLeaf) {
+    for (NSUInteger i=0; i<view.subviews.count; i++) {
+      YGApplyLayoutToViewHierarchy(view.subviews[i], NO);
+    }
+  }
+}
+
+@end

YogaKit/Source/YGLayoutExtensions.swift

@@ -0,0 +1,44 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+postfix operator %
+
+extension Int {
+    public static postfix func %(value: Int) -> YGValue {
+        return YGValue(value: Float(value), unit: .percent)
+    }
+}
+
+extension Float {
+    public static postfix func %(value: Float) -> YGValue {
+        return YGValue(value: value, unit: .percent)
+    }
+}
+
+extension CGFloat {
+    public static postfix func %(value: CGFloat) -> YGValue {
+        return YGValue(value: Float(value), unit: .percent)
+    }
+}
+
+extension YGValue : ExpressibleByIntegerLiteral, ExpressibleByFloatLiteral {
+    public init(integerLiteral value: Int) {
+        self = YGValue(value: Float(value), unit: .point)
+    }
+	
+    public init(floatLiteral value: Float) {
+        self = YGValue(value: value, unit: .point)
+    }
+  
+    public init(_ value: Float) {
+        self = YGValue(value: value, unit: .point)
+    }
+  
+    public init(_ value: CGFloat) {
+        self = YGValue(value: Float(value), unit: .point)
+    }
+}

YogaKit/Tests/Info.plist

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>${EXECUTABLE_NAME}</string>
+	<key>CFBundleIdentifier</key>
+	<string>com.facebook.${PRODUCT_NAME:rfc1034identifier}</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundlePackageType</key>
+	<string>BNDL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleSignature</key>
+	<string>????</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+</dict>
+</plist>

YogaKit/Tests/YogaKitTests.m

@@ -0,0 +1,754 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+#import <XCTest/XCTest.h>
+
+#import <YogaKit/UIView+Yoga.h>
+#import <YogaKit/YGLayout+Private.h>
+#import <yoga/Yoga.h>
+
+@interface YogaKitTests : XCTestCase
+@end
+
+@implementation YogaKitTests
+
+- (void)testConfigureLayoutIsNoOpWithNilBlock
+{
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+  id block = nil;
+  XCTAssertNoThrow([view configureLayoutWithBlock:block]);
+}
+
+- (void)testConfigureLayoutBlockWorksWithValidBlock
+{
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+  [view configureLayoutWithBlock:^(YGLayout *layout){
+    XCTAssertNotNil(layout);
+    layout.isEnabled = YES;
+    layout.width = YGPointValue(25);
+  }];
+
+  XCTAssertTrue(view.yoga.isEnabled);
+  XCTAssertEqual(view.yoga.width.value, 25);
+}
+
+- (void)testNodesAreDeallocedWithSingleView
+{
+  __weak YGLayout *layoutRef = nil;
+
+  @autoreleasepool {
+    UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+    view.yoga.flexBasis = YGPointValue(1);
+
+    layoutRef = view.yoga;
+    XCTAssertNotNil(layoutRef);
+
+    view = nil;
+  }
+
+  XCTAssertNil(layoutRef);
+}
+
+- (void)testNodesAreDeallocedCascade
+{
+  __weak YGLayout *topLayout = nil;
+  __weak YGLayout *subviewLayout = nil;
+
+  @autoreleasepool {
+    UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+    topLayout = view.yoga;
+    topLayout.flexBasis = YGPointValue(1);
+
+    UIView *subview = [[UIView alloc] initWithFrame:CGRectZero];
+    subviewLayout = subview.yoga;
+    subviewLayout.flexBasis = YGPointValue(1);
+
+    view = nil;
+  }
+
+  XCTAssertNil(topLayout);
+  XCTAssertNil(subviewLayout);
+}
+
+- (void)testIsEnabled
+{
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+  XCTAssertFalse(view.yoga.isEnabled);
+
+  view.yoga.isEnabled = YES;
+  XCTAssertTrue(view.yoga.isEnabled);
+
+  view.yoga.isEnabled = NO;
+  XCTAssertFalse(view.yoga.isEnabled);
+}
+
+- (void)testSizeThatFitsAsserts
+{
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+  dispatch_sync(dispatch_queue_create("com.facebook.Yoga.testing", DISPATCH_QUEUE_SERIAL), ^(void){
+    XCTAssertThrows(view.yoga.intrinsicSize);
+  });
+}
+
+- (void)testSizeThatFitsSmoke
+{
+  UIView *container = [[UIView alloc] initWithFrame:CGRectZero];
+  container.yoga.isEnabled = YES;
+  container.yoga.flexDirection = YGFlexDirectionRow;
+  container.yoga.alignItems = YGAlignFlexStart;
+
+  UILabel *longTextLabel = [[UILabel alloc] initWithFrame:CGRectZero];
+  longTextLabel.text = @"This is a very very very very very very very very long piece of text.";
+  longTextLabel.lineBreakMode = NSLineBreakByTruncatingTail;
+  longTextLabel.numberOfLines = 1;
+  longTextLabel.yoga.isEnabled = YES;
+  longTextLabel.yoga.flexShrink = 1;
+  [container addSubview:longTextLabel];
+
+  UIView *textBadgeView = [[UIView alloc] initWithFrame:CGRectZero];
+  textBadgeView.yoga.isEnabled = YES;
+  textBadgeView.yoga.margin = YGPointValue(0);
+  textBadgeView.yoga.width = YGPointValue(10);
+  textBadgeView.yoga.height = YGPointValue(10);
+  [container addSubview:textBadgeView];
+
+  const CGSize textBadgeViewSize = textBadgeView.yoga.intrinsicSize;
+  XCTAssertEqual(textBadgeViewSize.height, 10);
+  XCTAssertEqual(textBadgeViewSize.width, 10);
+
+  const CGSize containerSize = container.yoga.intrinsicSize;
+  const CGSize longTextLabelSize = longTextLabel.yoga.intrinsicSize;
+
+  XCTAssertEqual(longTextLabelSize.height, containerSize.height);
+  XCTAssertEqual(longTextLabelSize.width + textBadgeView.yoga.intrinsicSize.width, containerSize.width);
+}
+
+- (void)testSizeThatFitsEmptyView {
+  UIView* view = [[UIView alloc] initWithFrame:CGRectMake(10, 10, 200, 200)];
+  view.yoga.isEnabled = YES;
+
+  const CGSize viewSize = view.yoga.intrinsicSize;
+  XCTAssertEqual(viewSize.height, 0);
+  XCTAssertEqual(viewSize.width, 0);
+}
+
+- (void)testPreservingOrigin
+{
+  UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0,0,50,75)];
+  container.yoga.isEnabled = YES;
+
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+  view.yoga.isEnabled = YES;
+  view.yoga.flexBasis = YGPointValue(0);
+  view.yoga.flexGrow = 1;
+  [container addSubview:view];
+
+  UIView *view2 = [[UIView alloc] initWithFrame:CGRectZero];
+  view2.yoga.isEnabled = YES;
+  view2.yoga.marginTop = YGPointValue(25);
+  view2.yoga.flexBasis = YGPointValue(0);
+  view2.yoga.flexGrow = 1;
+  [container addSubview:view2];
+
+  [container.yoga applyLayoutPreservingOrigin:YES];
+  XCTAssertEqual(50, view2.frame.origin.y);
+
+  [view2.yoga applyLayoutPreservingOrigin:NO];
+  XCTAssertEqual(25, view2.frame.origin.y);
+}
+
+- (void)testContainerWithFlexibleWidthGetsCorrectlySized
+{
+  UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0,0,200,200)];
+  container.yoga.isEnabled = YES;
+
+  UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
+  view.yoga.isEnabled = YES;
+  view.yoga.width = YGPointValue(100);
+  view.yoga.height = YGPointValue(100);
+  [container addSubview:view];
+
+  [container.yoga applyLayoutPreservingOrigin:YES dimensionFlexibility:YGDimensionFlexibilityFlexibleWidth];
+  XCTAssertEqual(100, container.frame.size.width);
+  XCTAssertEqual(200, container.frame.size.height);
+}
+
+- (void)testContainerWithFlexibleHeightGetsCorrectlySized
+{
+  UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0,0,200,200)];
+  container.yoga.isEnabled = YES;
+
+  UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
+  view.yoga.isEnabled = YES;
+  view.yoga.width = YGPointValue(100);
+  view.yoga.height = YGPointValue(100);
+  [container addSubview:view];
+
+  [container.yoga
+      applyLayoutPreservingOrigin:YES
+             dimensionFlexibility:YGDimensionFlexibilityFlexibleHeight];
+  XCTAssertEqual(200, container.frame.size.width);
+  XCTAssertEqual(100, container.frame.size.height);
+}
+
+- (void)testContainerWithFlexibleWidthAndHeightGetsCorrectlySized
+{
+  UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0,0,200,200)];
+  container.yoga.isEnabled = YES;
+
+  UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
+  view.yoga.isEnabled = YES;
+  view.yoga.width = YGPointValue(100);
+  view.yoga.height = YGPointValue(100);
+  [container addSubview:view];
+
+  [container.yoga
+      applyLayoutPreservingOrigin:YES
+             dimensionFlexibility:YGDimensionFlexibilityFlexibleWidth |
+             YGDimensionFlexibilityFlexibleHeight];
+  XCTAssertEqual(100, container.frame.size.width);
+  XCTAssertEqual(100, container.frame.size.height);
+}
+
+- (void)testMarkingDirtyOnlyWorksOnLeafNodes
+{
+  UIView *container = [[UIView alloc] initWithFrame:CGRectZero];
+  container.yoga.isEnabled = YES;
+
+  UIView *subview = [[UIView alloc] initWithFrame:CGRectZero];
+  subview.yoga.isEnabled = YES;
+  [container addSubview:subview];
+
+  XCTAssertFalse(container.yoga.isDirty);
+  [container.yoga markDirty];
+  XCTAssertFalse(container.yoga.isDirty);
+
+  XCTAssertFalse(subview.yoga.isDirty);
+  [subview.yoga markDirty];
+  XCTAssertTrue(subview.yoga.isDirty);
+}
+
+- (void)testThatMarkingLeafsAsDirtyWillTriggerASizeRecalculation
+{
+  UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 500, 50)];
+  container.yoga.isEnabled = YES;
+  container.yoga.flexDirection = YGFlexDirectionRow;
+  container.yoga.alignItems = YGAlignFlexStart;
+
+  UILabel *view = [[UILabel alloc] initWithFrame:CGRectZero];
+  view.text = @"This is a short text.";
+  view.numberOfLines = 1;
+  view.yoga.isEnabled = YES;
+  [container addSubview:view];
+
+  [container.yoga applyLayoutPreservingOrigin:YES];
+  CGSize const viewSizeAfterFirstPass = view.frame.size;
+
+  view.text = @"This is a slightly longer text.";
+  XCTAssertTrue(CGSizeEqualToSize(view.frame.size, viewSizeAfterFirstPass));
+
+  [view.yoga markDirty];
+
+  [container.yoga applyLayoutPreservingOrigin:YES];
+  XCTAssertFalse(CGSizeEqualToSize(view.frame.size, viewSizeAfterFirstPass));
+}
+
+- (void)testFrameAndOriginPlacement
+{
+  const CGSize containerSize = CGSizeMake(320, 50);
+
+  UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, containerSize.width, containerSize.height)];
+  container.yoga.isEnabled = YES;
+  container.yoga.flexDirection = YGFlexDirectionRow;
+
+  UIView *subview1 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview1.yoga.isEnabled = YES;
+  subview1.yoga.flexGrow = 1;
+  [container addSubview:subview1];
+
+  UIView *subview2 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview2.yoga.isEnabled = YES;
+  subview2.yoga.flexGrow = 1;
+  [container addSubview:subview2];
+
+  UIView *subview3 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview3.yoga.isEnabled = YES;
+  subview3.yoga.flexGrow = 1;
+  [container addSubview:subview3];
+
+  [container.yoga applyLayoutPreservingOrigin:YES];
+
+  XCTAssertEqualWithAccuracy(subview2.frame.origin.x, CGRectGetMaxX(subview1.frame), FLT_EPSILON);
+  XCTAssertEqualWithAccuracy(subview3.frame.origin.x, CGRectGetMaxX(subview2.frame), FLT_EPSILON);
+
+  CGFloat totalWidth = 0;
+  for (UIView *view in container.subviews) {
+    totalWidth += view.bounds.size.width;
+  }
+
+  XCTAssertEqual(containerSize.width, totalWidth, @"The container's width is %.6f, the subviews take up %.6f", containerSize.width, totalWidth);
+}
+
+- (void)testThatLayoutIsCorrectWhenWeSwapViewOrder
+{
+  const CGSize containerSize = CGSizeMake(300, 50);
+
+  UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, containerSize.width, containerSize.height)];
+  container.yoga.isEnabled = YES;
+  container.yoga.flexDirection = YGFlexDirectionRow;
+
+  UIView *subview1 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview1.yoga.isEnabled = YES;
+  subview1.yoga.flexGrow = 1;
+  [container addSubview:subview1];
+
+  UIView *subview2 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview2.yoga.isEnabled = YES;
+  subview2.yoga.flexGrow = 1;
+  [container addSubview:subview2];
+
+  UIView *subview3 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview3.yoga.isEnabled = YES;
+  subview3.yoga.flexGrow = 1;
+  [container addSubview:subview3];
+
+  [container.yoga applyLayoutPreservingOrigin:YES];
+
+  XCTAssertTrue(CGRectEqualToRect(subview1.frame, CGRectMake(0, 0, 100, 50)));
+  XCTAssertTrue(CGRectEqualToRect(subview2.frame, CGRectMake(100, 0, 100, 50)));
+  XCTAssertTrue(CGRectEqualToRect(subview3.frame, CGRectMake(200, 0, 100, 50)));
+
+  [container exchangeSubviewAtIndex:2 withSubviewAtIndex:0];
+  subview2.yoga.isIncludedInLayout = NO;
+  [container.yoga applyLayoutPreservingOrigin:YES];
+
+  XCTAssertTrue(CGRectEqualToRect(subview3.frame, CGRectMake(0, 0, 150, 50)));
+  XCTAssertTrue(CGRectEqualToRect(subview1.frame, CGRectMake(150, 0, 150, 50)));
+
+  // this frame shouldn't have been modified since last time.
+  XCTAssertTrue(CGRectEqualToRect(subview2.frame, CGRectMake(100, 0, 100, 50)));
+}
+
+- (void)testThatWeRespectIncludeInLayoutFlag
+{
+  const CGSize containerSize = CGSizeMake(300, 50);
+
+  UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, containerSize.width, containerSize.height)];
+  container.yoga.isEnabled = YES;
+  container.yoga.flexDirection = YGFlexDirectionRow;
+
+  UIView *subview1 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview1.yoga.isEnabled = YES;
+  subview1.yoga.flexGrow = 1;
+  [container addSubview:subview1];
+
+  UIView *subview2 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview2.yoga.isEnabled = YES;
+  subview2.yoga.flexGrow = 1;
+  [container addSubview:subview2];
+
+  UIView *subview3 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview3.yoga.isEnabled = YES;
+  subview3.yoga.flexGrow = 1;
+  [container addSubview:subview3];
+
+  [container.yoga applyLayoutPreservingOrigin:YES];
+
+  for (UIView *subview in container.subviews) {
+    XCTAssertEqual(subview.bounds.size.width, 100);
+  }
+
+  subview3.yoga.isIncludedInLayout = NO;
+  [container.yoga applyLayoutPreservingOrigin:YES];
+
+  XCTAssertEqual(subview1.bounds.size.width, 150);
+  XCTAssertEqual(subview2.bounds.size.width, 150);
+
+  // We don't set the frame to zero, so, it should be set to what it was previously at.
+  XCTAssertEqual(subview3.bounds.size.width, 100);
+}
+
+- (void)testThatNumberOfChildrenIsCorrectWhenWeIgnoreSubviews
+{
+  UIView *container = [[UIView alloc] initWithFrame:CGRectZero];
+  container.yoga.isEnabled = YES;
+  container.yoga.flexDirection = YGFlexDirectionRow;
+
+  UIView *subview1 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview1.yoga.isEnabled = YES;
+  subview1.yoga.isIncludedInLayout = NO;
+  [container addSubview:subview1];
+
+  UIView *subview2 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview2.yoga.isEnabled = YES;
+  subview2.yoga.isIncludedInLayout = NO;
+  [container addSubview:subview2];
+
+  UIView *subview3 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview3.yoga.isEnabled = YES;
+  subview3.yoga.isIncludedInLayout = YES;
+  [container addSubview:subview3];
+
+  [container.yoga applyLayoutPreservingOrigin:YES];
+  XCTAssertEqual(container.yoga.numberOfChildren, 1);
+
+  subview2.yoga.isIncludedInLayout = YES;
+  [container.yoga applyLayoutPreservingOrigin:YES];
+  XCTAssertEqual(container.yoga.numberOfChildren, 2);
+}
+
+- (void)testThatViewNotIncludedInFirstLayoutPassAreIncludedInSecond
+{
+  UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 300, 50)];
+  container.yoga.isEnabled = YES;
+  container.yoga.flexDirection = YGFlexDirectionRow;
+
+  UIView *subview1 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview1.yoga.isEnabled = YES;
+  subview1.yoga.flexGrow = 1;
+  [container addSubview:subview1];
+
+  UIView *subview2 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview2.yoga.isEnabled = YES;
+  subview2.yoga.flexGrow = 1;
+  [container addSubview:subview2];
+
+  UIView *subview3 = [[UIView alloc] initWithFrame:CGRectZero];
+  subview3.yoga.isEnabled = YES;
+  subview3.yoga.flexGrow = 1;
+  subview3.yoga.isIncludedInLayout = NO;
+  [container addSubview:subview3];
+
+  [container.yoga applyLayoutPreservingOrigin:YES];
+
+  XCTAssertEqual(subview1.bounds.size.width, 150);
+  XCTAssertEqual(subview2.bounds.size.width, 150);
+  XCTAssertEqual(subview3.bounds.size.width, 0);
+
+  subview3.yoga.isIncludedInLayout = YES;
+  [container.yoga applyLayoutPreservingOrigin:YES];
+
+  XCTAssertEqual(subview1.bounds.size.width, 100);
+  XCTAssertEqual(subview2.bounds.size.width, 100);
+  XCTAssertEqual(subview3.bounds.size.width, 100);
+}
+
+- (void)testIsLeafFlag
+{
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+  XCTAssertTrue(view.yoga.isLeaf);
+
+  for (int i=0; i<10; i++) {
+    UIView *subview = [[UIView alloc] initWithFrame:CGRectZero];
+    [view addSubview:subview];
+  }
+  XCTAssertTrue(view.yoga.isLeaf);
+
+  view.yoga.isEnabled = YES;
+  view.yoga.width = YGPointValue(50);
+  XCTAssertTrue(view.yoga.isLeaf);
+
+  UIView *const subview = view.subviews[0];
+  subview.yoga.isEnabled = YES;
+  subview.yoga.width = YGPointValue(50);
+  XCTAssertFalse(view.yoga.isLeaf);
+}
+
+- (void)testThatWeCorrectlyAttachNestedViews
+{
+    UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 300, 50)];
+    container.yoga.isEnabled = YES;
+    container.yoga.flexDirection = YGFlexDirectionColumn;
+
+    UIView *subview1 = [[UIView alloc] initWithFrame:CGRectZero];
+    subview1.yoga.isEnabled = YES;
+    subview1.yoga.width = YGPointValue(100);
+    subview1.yoga.flexGrow = 1;
+    subview1.yoga.flexDirection = YGFlexDirectionColumn;
+    [container addSubview:subview1];
+
+    UIView *subview2 = [[UIView alloc] initWithFrame:CGRectZero];
+    subview2.yoga.isEnabled = YES;
+    subview2.yoga.width = YGPointValue(150);
+    subview2.yoga.flexGrow = 1;
+    subview2.yoga.flexDirection = YGFlexDirectionColumn;
+    [container addSubview:subview2];
+
+    for (UIView *view in @[subview1, subview2]) {
+        UIView *someView = [[UIView alloc] initWithFrame:CGRectZero];
+        someView.yoga.isEnabled = YES;
+        someView.yoga.flexGrow = 1;
+        [view addSubview:someView];
+    }
+    [container.yoga applyLayoutPreservingOrigin:YES];
+
+    // Add the same amount of new views, reapply layout.
+    for (UIView *view in @[subview1, subview2]) {
+        UIView *someView = [[UIView alloc] initWithFrame:CGRectZero];
+        someView.yoga.isEnabled = YES;
+        someView.yoga.flexGrow = 1;
+        [view addSubview:someView];
+    }
+    [container.yoga applyLayoutPreservingOrigin:YES];
+
+    XCTAssertEqual(subview1.bounds.size.width, 100);
+    XCTAssertEqual(subview1.bounds.size.height, 25);
+    for (UIView *subview in subview1.subviews) {
+        const CGSize subviewSize = subview.bounds.size;
+        XCTAssertNotEqual(subviewSize.width, 0);
+        XCTAssertNotEqual(subviewSize.height, 0);
+        XCTAssertFalse(isnan(subviewSize.height));
+        XCTAssertFalse(isnan(subviewSize.width));
+    }
+
+    XCTAssertEqual(subview2.bounds.size.width, 150);
+    XCTAssertEqual(subview2.bounds.size.height, 25);
+    for (UIView *subview in subview2.subviews) {
+        const CGSize subviewSize = subview.bounds.size;
+        XCTAssertNotEqual(subviewSize.width, 0);
+        XCTAssertNotEqual(subviewSize.height, 0);
+        XCTAssertFalse(isnan(subviewSize.height));
+        XCTAssertFalse(isnan(subviewSize.width));
+    }
+}
+
+- (void)testThatANonLeafNodeCanBecomeALeafNode
+{
+    UIView *container = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 300, 50)];
+    container.yoga.isEnabled = YES;
+
+    UIView *subview1 = [[UIView alloc] initWithFrame:CGRectZero];
+    subview1.yoga.isEnabled = YES;
+    [container addSubview:subview1];
+
+    UIView *subview2 = [[UIView alloc] initWithFrame:CGRectZero];
+    subview2.yoga.isEnabled = YES;
+    [subview1 addSubview:subview2];
+
+    [container.yoga applyLayoutPreservingOrigin:YES];
+    [subview2 removeFromSuperview];
+    [container.yoga applyLayoutPreservingOrigin:YES];
+}
+
+- (void)testPointPercent
+{
+  XCTAssertEqual(YGPointValue(1).value, 1);
+  XCTAssertEqual(YGPointValue(1).unit, YGUnitPoint);
+  XCTAssertEqual(YGPercentValue(2).value, 2);
+  XCTAssertEqual(YGPercentValue(2).unit, YGUnitPercent);
+}
+
+- (void)testPositionalPropertiesWork
+{
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+
+  view.yoga.left = YGPointValue(1);
+  XCTAssertEqual(view.yoga.left.value, 1);
+  XCTAssertEqual(view.yoga.left.unit, YGUnitPoint);
+  view.yoga.left = YGPercentValue(2);
+  XCTAssertEqual(view.yoga.left.value, 2);
+  XCTAssertEqual(view.yoga.left.unit, YGUnitPercent);
+
+  view.yoga.right = YGPointValue(3);
+  XCTAssertEqual(view.yoga.right.value, 3);
+  XCTAssertEqual(view.yoga.right.unit, YGUnitPoint);
+  view.yoga.right = YGPercentValue(4);
+  XCTAssertEqual(view.yoga.right.value, 4);
+  XCTAssertEqual(view.yoga.right.unit, YGUnitPercent);
+
+  view.yoga.top = YGPointValue(5);
+  XCTAssertEqual(view.yoga.top.value, 5);
+  XCTAssertEqual(view.yoga.top.unit, YGUnitPoint);
+  view.yoga.top = YGPercentValue(6);
+  XCTAssertEqual(view.yoga.top.value, 6);
+  XCTAssertEqual(view.yoga.top.unit, YGUnitPercent);
+
+  view.yoga.bottom = YGPointValue(7);
+  XCTAssertEqual(view.yoga.bottom.value, 7);
+  XCTAssertEqual(view.yoga.bottom.unit, YGUnitPoint);
+  view.yoga.bottom = YGPercentValue(8);
+  XCTAssertEqual(view.yoga.bottom.value, 8);
+  XCTAssertEqual(view.yoga.bottom.unit, YGUnitPercent);
+
+  view.yoga.start = YGPointValue(9);
+  XCTAssertEqual(view.yoga.start.value, 9);
+  XCTAssertEqual(view.yoga.start.unit, YGUnitPoint);
+  view.yoga.start = YGPercentValue(10);
+  XCTAssertEqual(view.yoga.start.value, 10);
+  XCTAssertEqual(view.yoga.start.unit, YGUnitPercent);
+
+  view.yoga.end = YGPointValue(11);
+  XCTAssertEqual(view.yoga.end.value, 11);
+  XCTAssertEqual(view.yoga.end.unit, YGUnitPoint);
+  view.yoga.end = YGPercentValue(12);
+  XCTAssertEqual(view.yoga.end.value, 12);
+  XCTAssertEqual(view.yoga.end.unit, YGUnitPercent);
+}
+
+- (void)testMarginPropertiesWork
+{
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+
+  view.yoga.margin = YGPointValue(1);
+  XCTAssertEqual(view.yoga.margin.value, 1);
+  XCTAssertEqual(view.yoga.margin.unit, YGUnitPoint);
+  view.yoga.margin = YGPercentValue(2);
+  XCTAssertEqual(view.yoga.margin.value, 2);
+  XCTAssertEqual(view.yoga.margin.unit, YGUnitPercent);
+
+  view.yoga.marginHorizontal = YGPointValue(3);
+  XCTAssertEqual(view.yoga.marginHorizontal.value, 3);
+  XCTAssertEqual(view.yoga.marginHorizontal.unit, YGUnitPoint);
+  view.yoga.marginHorizontal = YGPercentValue(4);
+  XCTAssertEqual(view.yoga.marginHorizontal.value, 4);
+  XCTAssertEqual(view.yoga.marginHorizontal.unit, YGUnitPercent);
+
+  view.yoga.marginVertical = YGPointValue(5);
+  XCTAssertEqual(view.yoga.marginVertical.value, 5);
+  XCTAssertEqual(view.yoga.marginVertical.unit, YGUnitPoint);
+  view.yoga.marginVertical = YGPercentValue(6);
+  XCTAssertEqual(view.yoga.marginVertical.value, 6);
+  XCTAssertEqual(view.yoga.marginVertical.unit, YGUnitPercent);
+
+  view.yoga.marginLeft = YGPointValue(7);
+  XCTAssertEqual(view.yoga.marginLeft.value, 7);
+  XCTAssertEqual(view.yoga.marginLeft.unit, YGUnitPoint);
+  view.yoga.marginLeft = YGPercentValue(8);
+  XCTAssertEqual(view.yoga.marginLeft.value, 8);
+  XCTAssertEqual(view.yoga.marginLeft.unit, YGUnitPercent);
+
+  view.yoga.marginRight = YGPointValue(9);
+  XCTAssertEqual(view.yoga.marginRight.value, 9);
+  XCTAssertEqual(view.yoga.marginRight.unit, YGUnitPoint);
+  view.yoga.marginRight = YGPercentValue(10);
+  XCTAssertEqual(view.yoga.marginRight.value, 10);
+  XCTAssertEqual(view.yoga.marginRight.unit, YGUnitPercent);
+
+  view.yoga.marginTop = YGPointValue(11);
+  XCTAssertEqual(view.yoga.marginTop.value, 11);
+  XCTAssertEqual(view.yoga.marginTop.unit, YGUnitPoint);
+  view.yoga.marginTop = YGPercentValue(12);
+  XCTAssertEqual(view.yoga.marginTop.value, 12);
+  XCTAssertEqual(view.yoga.marginTop.unit, YGUnitPercent);
+
+  view.yoga.marginBottom = YGPointValue(13);
+  XCTAssertEqual(view.yoga.marginBottom.value, 13);
+  XCTAssertEqual(view.yoga.marginBottom.unit, YGUnitPoint);
+  view.yoga.marginBottom = YGPercentValue(14);
+  XCTAssertEqual(view.yoga.marginBottom.value, 14);
+  XCTAssertEqual(view.yoga.marginBottom.unit, YGUnitPercent);
+
+  view.yoga.marginStart = YGPointValue(15);
+  XCTAssertEqual(view.yoga.marginStart.value, 15);
+  XCTAssertEqual(view.yoga.marginStart.unit, YGUnitPoint);
+  view.yoga.marginStart = YGPercentValue(16);
+  XCTAssertEqual(view.yoga.marginStart.value, 16);
+  XCTAssertEqual(view.yoga.marginStart.unit, YGUnitPercent);
+
+  view.yoga.marginEnd = YGPointValue(17);
+  XCTAssertEqual(view.yoga.marginEnd.value, 17);
+  XCTAssertEqual(view.yoga.marginEnd.unit, YGUnitPoint);
+  view.yoga.marginEnd = YGPercentValue(18);
+  XCTAssertEqual(view.yoga.marginEnd.value, 18);
+  XCTAssertEqual(view.yoga.marginEnd.unit, YGUnitPercent);
+}
+
+- (void)testPaddingPropertiesWork
+{
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+
+  view.yoga.padding = YGPointValue(1);
+  XCTAssertEqual(view.yoga.padding.value, 1);
+  XCTAssertEqual(view.yoga.padding.unit, YGUnitPoint);
+  view.yoga.padding = YGPercentValue(2);
+  XCTAssertEqual(view.yoga.padding.value, 2);
+  XCTAssertEqual(view.yoga.padding.unit, YGUnitPercent);
+
+  view.yoga.paddingHorizontal = YGPointValue(3);
+  XCTAssertEqual(view.yoga.paddingHorizontal.value, 3);
+  XCTAssertEqual(view.yoga.paddingHorizontal.unit, YGUnitPoint);
+  view.yoga.paddingHorizontal = YGPercentValue(4);
+  XCTAssertEqual(view.yoga.paddingHorizontal.value, 4);
+  XCTAssertEqual(view.yoga.paddingHorizontal.unit, YGUnitPercent);
+
+  view.yoga.paddingVertical = YGPointValue(5);
+  XCTAssertEqual(view.yoga.paddingVertical.value, 5);
+  XCTAssertEqual(view.yoga.paddingVertical.unit, YGUnitPoint);
+  view.yoga.paddingVertical = YGPercentValue(6);
+  XCTAssertEqual(view.yoga.paddingVertical.value, 6);
+  XCTAssertEqual(view.yoga.paddingVertical.unit, YGUnitPercent);
+
+  view.yoga.paddingLeft = YGPointValue(7);
+  XCTAssertEqual(view.yoga.paddingLeft.value, 7);
+  XCTAssertEqual(view.yoga.paddingLeft.unit, YGUnitPoint);
+  view.yoga.paddingLeft = YGPercentValue(8);
+  XCTAssertEqual(view.yoga.paddingLeft.value, 8);
+  XCTAssertEqual(view.yoga.paddingLeft.unit, YGUnitPercent);
+
+  view.yoga.paddingRight = YGPointValue(9);
+  XCTAssertEqual(view.yoga.paddingRight.value, 9);
+  XCTAssertEqual(view.yoga.paddingRight.unit, YGUnitPoint);
+  view.yoga.paddingRight = YGPercentValue(10);
+  XCTAssertEqual(view.yoga.paddingRight.value, 10);
+  XCTAssertEqual(view.yoga.paddingRight.unit, YGUnitPercent);
+
+  view.yoga.paddingTop = YGPointValue(11);
+  XCTAssertEqual(view.yoga.paddingTop.value, 11);
+  XCTAssertEqual(view.yoga.paddingTop.unit, YGUnitPoint);
+  view.yoga.paddingTop = YGPercentValue(12);
+  XCTAssertEqual(view.yoga.paddingTop.value, 12);
+  XCTAssertEqual(view.yoga.paddingTop.unit, YGUnitPercent);
+
+  view.yoga.paddingBottom = YGPointValue(13);
+  XCTAssertEqual(view.yoga.paddingBottom.value, 13);
+  XCTAssertEqual(view.yoga.paddingBottom.unit, YGUnitPoint);
+  view.yoga.paddingBottom = YGPercentValue(14);
+  XCTAssertEqual(view.yoga.paddingBottom.value, 14);
+  XCTAssertEqual(view.yoga.paddingBottom.unit, YGUnitPercent);
+
+  view.yoga.paddingStart = YGPointValue(15);
+  XCTAssertEqual(view.yoga.paddingStart.value, 15);
+  XCTAssertEqual(view.yoga.paddingStart.unit, YGUnitPoint);
+  view.yoga.paddingStart = YGPercentValue(16);
+  XCTAssertEqual(view.yoga.paddingStart.value, 16);
+  XCTAssertEqual(view.yoga.paddingStart.unit, YGUnitPercent);
+
+  view.yoga.paddingEnd = YGPointValue(17);
+  XCTAssertEqual(view.yoga.paddingEnd.value, 17);
+  XCTAssertEqual(view.yoga.paddingEnd.unit, YGUnitPoint);
+  view.yoga.paddingEnd = YGPercentValue(18);
+  XCTAssertEqual(view.yoga.paddingEnd.value, 18);
+  XCTAssertEqual(view.yoga.paddingEnd.unit, YGUnitPercent);
+}
+
+- (void)testBorderWidthPropertiesWork
+{
+  UIView *view = [[UIView alloc] initWithFrame:CGRectZero];
+
+  view.yoga.borderWidth = 1;
+  XCTAssertEqual(view.yoga.borderWidth, 1);
+
+  view.yoga.borderLeftWidth = 2;
+  XCTAssertEqual(view.yoga.borderLeftWidth, 2);
+
+  view.yoga.borderRightWidth = 3;
+  XCTAssertEqual(view.yoga.borderRightWidth, 3);
+
+  view.yoga.borderTopWidth = 4;
+  XCTAssertEqual(view.yoga.borderTopWidth, 4);
+
+  view.yoga.borderBottomWidth = 5;
+  XCTAssertEqual(view.yoga.borderBottomWidth, 5);
+
+  view.yoga.borderStartWidth = 6;
+  XCTAssertEqual(view.yoga.borderStartWidth, 6);
+
+  view.yoga.borderEndWidth = 7;
+  XCTAssertEqual(view.yoga.borderEndWidth, 7);
+}
+
+@end

YogaKit/YogaKitSample/Podfile

@@ -0,0 +1,6 @@
+use_frameworks!
+
+target 'YogaKitSample' do
+  pod 'YogaKit', :path => '../../YogaKit.podspec'
+  pod 'IGListKit', '~> 2.1.0'
+end

YogaKit/YogaKitSample/Podfile.lock

@@ -0,0 +1,26 @@
+PODS:
+  - IGListKit (2.1.0):
+    - IGListKit/Default (= 2.1.0)
+  - IGListKit/Default (2.1.0):
+    - IGListKit/Diffing
+  - IGListKit/Diffing (2.1.0)
+  - Yoga (1.7.0)
+  - YogaKit (1.7.0):
+    - Yoga (~> 1.7)
+
+DEPENDENCIES:
+  - IGListKit (~> 2.1.0)
+  - YogaKit (from `../../YogaKit.podspec`)
+
+EXTERNAL SOURCES:
+  YogaKit:
+    :path: ../../YogaKit.podspec
+
+SPEC CHECKSUMS:
+  IGListKit: b826c68ef7a4ae1626c09d4d3e1ea7a169e6c36e
+  Yoga: 2ed1d7accfef3610a67f58c0cf101a0662137f2c
+  YogaKit: 31576530e8fcae3175469719ec3212397403330b
+
+PODFILE CHECKSUM: 216f8e7127767709e0e43f3711208d238fa5c404
+
+COCOAPODS: 1.1.1

YogaKit/YogaKitSample/YogaKitSample.xcodeproj/project.pbxproj

@@ -0,0 +1,529 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
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+				SWIFT_INSTALL_OBJC_HEADER = NO;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 3.0;
+			};
+			name = Debug;
+		};
+		13687D5C1DF8748400E7C260 /* Release */ = {
+			isa = XCBuildConfiguration;
+			baseConfigurationReference = 82F0896A88112E957EF37C7F /* Pods-YogaKitSample.release.xcconfig */;
+			buildSettings = {
+				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
+				CLANG_ENABLE_MODULES = YES;
+				INFOPLIST_FILE = YogaKitSample/Info.plist;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = com.facebook.YogaKitSample;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_INSTALL_OBJC_HEADER = NO;
+				SWIFT_VERSION = 3.0;
+			};
+			name = Release;
+		};
+		638A94571E215CC800A726AD /* Debug */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				INFOPLIST_FILE = YogaKitSampleTests/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.2;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = com.facebook.YogaKitSampleTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/YogaKitSample.app/YogaKitSample";
+			};
+			name = Debug;
+		};
+		638A94581E215CC800A726AD /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
+				BUNDLE_LOADER = "$(TEST_HOST)";
+				INFOPLIST_FILE = YogaKitSampleTests/Info.plist;
+				IPHONEOS_DEPLOYMENT_TARGET = 10.2;
+				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				PRODUCT_BUNDLE_IDENTIFIER = com.facebook.YogaKitSampleTests;
+				PRODUCT_NAME = "$(TARGET_NAME)";
+				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/YogaKitSample.app/YogaKitSample";
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		13687D3E1DF8748300E7C260 /* Build configuration list for PBXProject "YogaKitSample" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				13687D581DF8748400E7C260 /* Debug */,
+				13687D591DF8748400E7C260 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		13687D5A1DF8748400E7C260 /* Build configuration list for PBXNativeTarget "YogaKitSample" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				13687D5B1DF8748400E7C260 /* Debug */,
+				13687D5C1DF8748400E7C260 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		638A94561E215CC800A726AD /* Build configuration list for PBXNativeTarget "YogaKitSampleTests" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				638A94571E215CC800A726AD /* Debug */,
+				638A94581E215CC800A726AD /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = 13687D3B1DF8748300E7C260 /* Project object */;
+}

YogaKit/YogaKitSample/YogaKitSample.xcodeproj/project.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:YogaKitSample.xcodeproj">
+   </FileRef>
+</Workspace>

YogaKit/YogaKitSample/YogaKitSample.xcodeproj/xcshareddata/xcschemes/YogaKitSample.xcscheme

@@ -0,0 +1,101 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "0820"
+   version = "1.3">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES">
+      <BuildActionEntries>
+         <BuildActionEntry
+            buildForTesting = "YES"
+            buildForRunning = "YES"
+            buildForProfiling = "YES"
+            buildForArchiving = "YES"
+            buildForAnalyzing = "YES">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "13687D421DF8748300E7C260"
+               BuildableName = "YogaKitSample.app"
+               BlueprintName = "YogaKitSample"
+               ReferencedContainer = "container:YogaKitSample.xcodeproj">
+            </BuildableReference>
+         </BuildActionEntry>
+      </BuildActionEntries>
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES">
+      <Testables>
+         <TestableReference
+            skipped = "NO">
+            <BuildableReference
+               BuildableIdentifier = "primary"
+               BlueprintIdentifier = "638A944E1E215CC800A726AD"
+               BuildableName = "YogaKitSampleTests.xctest"
+               BlueprintName = "YogaKitSampleTests"
+               ReferencedContainer = "container:YogaKitSample.xcodeproj">
+            </BuildableReference>
+         </TestableReference>
+      </Testables>
+      <MacroExpansion>
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "13687D421DF8748300E7C260"
+            BuildableName = "YogaKitSample.app"
+            BlueprintName = "YogaKitSample"
+            ReferencedContainer = "container:YogaKitSample.xcodeproj">
+         </BuildableReference>
+      </MacroExpansion>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "13687D421DF8748300E7C260"
+            BuildableName = "YogaKitSample.app"
+            BlueprintName = "YogaKitSample"
+            ReferencedContainer = "container:YogaKitSample.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+      <AdditionalOptions>
+      </AdditionalOptions>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "13687D421DF8748300E7C260"
+            BuildableName = "YogaKitSample.app"
+            BlueprintName = "YogaKitSample"
+            ReferencedContainer = "container:YogaKitSample.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>

YogaKit/YogaKitSample/YogaKitSample.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:YogaKitSample.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
+</Workspace>

YogaKit/YogaKitSample/YogaKitSample/AppDelegate.swift

@@ -0,0 +1,27 @@
+/**
+ * Copyright 2014-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the license found in the
+ * LICENSE-examples file in the root directory of this source tree.
+ */
+
+import Foundation
+import UIKit
+
+@UIApplicationMain
+class AppDelegate: UIResponder, UIApplicationDelegate {
+    var window: UIWindow?
+
+    func applicationDidFinishLaunching(_ application: UIApplication) {
+        self.window = UIWindow(frame: UIScreen.main.bounds)
+        if let window = self.window {
+            let navigationController = UINavigationController(rootViewController: ExamplesViewController())
+            navigationController.navigationBar.isTranslucent = false
+
+            window.rootViewController = navigationController
+            window.backgroundColor = .white
+            window.makeKeyAndVisible()
+        }
+    }
+}

YogaKit/YogaKitSample/YogaKitSample/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,74 @@
+{
+  "images" : [
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Yoga-20x20@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "20x20",
+      "idiom" : "iphone",
+      "filename" : "Yoga-20x20@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Yoga-29x29@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Yoga-29x29@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "29x29",
+      "idiom" : "iphone",
+      "filename" : "Yoga-29x29@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Yoga-40x40@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "40x40",
+      "idiom" : "iphone",
+      "filename" : "Yoga-40x40@3x.png",
+      "scale" : "3x"
+    },
+    {
+      "size" : "57x57",
+      "idiom" : "iphone",
+      "filename" : "Yoga-57x57@1x.png",
+      "scale" : "1x"
+    },
+    {
+      "size" : "57x57",
+      "idiom" : "iphone",
+      "filename" : "Yoga-57x57@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Yoga-60x60@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "size" : "60x60",
+      "idiom" : "iphone",
+      "filename" : "Yoga-60x60@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

YogaKit/YogaKitSample/YogaKitSample/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

YogaKit/YogaKitSample/YogaKitSample/ExamplesViewController.swift

@@ -0,0 +1,100 @@
+/**
+ * Copyright 2014-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the license found in the
+ * LICENSE-examples file in the root directory of this source tree.
+ */
+
+import UIKit
+import IGListKit
+
+private final class ExampleModel {
+    let title: String
+    let controllerClass: UIViewController.Type
+
+    init(title: String, controllerClass: UIViewController.Type) {
+        self.title = title
+        self.controllerClass = controllerClass
+    }
+}
+
+extension ExampleModel: IGListDiffable {
+    fileprivate func diffIdentifier() -> NSObjectProtocol {
+        return title as NSString
+    }
+
+    fileprivate func isEqual(toDiffableObject object: IGListDiffable?) -> Bool {
+        guard let otherObj = object as? ExampleModel else { return false }
+
+        return (title == otherObj.title) &&
+               (controllerClass == otherObj.controllerClass)
+    }
+}
+
+final class ExamplesViewController: UIViewController, IGListAdapterDataSource, IGListSingleSectionControllerDelegate {
+    private lazy var adapter: IGListAdapter = {
+        return IGListAdapter(updater: IGListAdapterUpdater(), viewController: self, workingRangeSize: 0)
+    }()
+    private let collectionView = IGListCollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())
+
+
+    // Update this to array to create more examples.
+    private let models: [ExampleModel] = [ExampleModel(title: "Basic Layout", controllerClass: BasicViewController.self),
+                                          ExampleModel(title: "Exclude Views in Layout", controllerClass: LayoutInclusionViewController.self)]
+
+    //MARK: UIViewController
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        title = "Examples"
+        view.addSubview(collectionView)
+        adapter.collectionView = collectionView
+        adapter.dataSource = self
+    }
+
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        collectionView.frame = view.bounds
+    }
+
+    //MARK: IGListAdapterDataSource
+
+    func objects(for listAdapter: IGListAdapter) -> [IGListDiffable] {
+        return models as [IGListDiffable]
+    }
+
+    func listAdapter(_ listAdapter: IGListAdapter, sectionControllerFor object: Any) -> IGListSectionController {
+        let sizeBlock: IGListSingleSectionCellSizeBlock = { (model, context) in
+            return CGSize(width: (context?.containerSize.width)!, height: 75.0)
+        }
+
+        let configureBlock: IGListSingleSectionCellConfigureBlock = { (model, cell) in
+            guard let m = model as? ExampleModel, let c = cell as? SingleLabelCollectionCell else {
+                return
+            }
+
+            c.label.text = m.title
+        }
+
+        let sectionController = IGListSingleSectionController(cellClass: SingleLabelCollectionCell.self,
+                                                              configureBlock: configureBlock,
+                                                              sizeBlock: sizeBlock)
+        sectionController.selectionDelegate = self
+        return sectionController
+    }
+
+    func emptyView(for listAdapter: IGListAdapter) -> UIView? { return nil }
+
+    //MARK: IGListSingleSectionControllerDelegate
+
+    func didSelect(_ sectionController: IGListSingleSectionController) {
+        let section = adapter.section(for: sectionController)
+        let model = models[section]
+
+        let controller = model.controllerClass.init()
+        controller.title = model.title
+
+        self.navigationController?.pushViewController(controller, animated: true)
+    }
+}

YogaKit/YogaKitSample/YogaKitSample/Info.plist

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>en</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>$(PRODUCT_NAME)</string>
+	<key>CFBundlePackageType</key>
+	<string>APPL</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
+	<key>CFBundleVersion</key>
+	<string>1</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string></string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
+	<key>UISupportedInterfaceOrientations</key>
+	<array>
+		<string>UIInterfaceOrientationPortrait</string>
+		<string>UIInterfaceOrientationLandscapeLeft</string>
+		<string>UIInterfaceOrientationLandscapeRight</string>
+	</array>
+</dict>
+</plist>

YogaKit/YogaKitSample/YogaKitSample/SwiftViewController.swift

@@ -0,0 +1,71 @@
+/**
+ * Copyright 2014-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the license found in the
+ * LICENSE-examples file in the root directory of this source tree.
+ */
+
+import UIKit
+import IGListKit
+import YogaKit
+
+struct DemoItem {
+    let name: String
+    root.backgroundColor = .red
+    root.yoga.isEnabled = true
+    root.yoga.width = YGValue(self.view.bounds.size.width)
+    root.yoga.height = YGValue(self.view.bounds.size.height)
+    root.yoga.alignItems = .center
+}
+
+final class SwiftViewController: UIViewController, IGListAdapterDataSource {
+
+    lazy var adapter: IGListAdapter = {
+        return IGListAdapter(updater: IGListAdapterUpdater(), viewController: self, workingRangeSize: 0)
+    }()
+    let collectionView = IGListCollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())
+
+    //MARK: UIViewController
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        title = "YogaKit Examples"
+        view.addSubview(collectionView)
+        adapter.collectionView = collectionView
+        adapter.dataSource = self
+    }
+
+    override func viewDidLayoutSubviews() {
+        super.viewDidLayoutSubviews()
+        collectionView.frame = view.bounds
+    }
+
+
+    //MARK: IGListAdapterDataSource
+
+    func objects(for listAdapter: IGListAdapter) -> [IGListDiffable] {
+        return ["Dustin" as IGListDiffable, "Ryan" as IGListDiffable]
+    }
+
+    func listAdapter(_ listAdapter: IGListAdapter, sectionControllerFor object: Any) -> IGListSectionController {
+        let sizeBlock: IGListSingleSectionCellSizeBlock = { (model, context) in
+            return CGSize(width: (context?.containerSize.width)!, height: 100.0)
+        }
+        let configureBlock: IGListSingleSectionCellConfigureBlock = { (model, cell) in
+            guard let m = model as? String else {
+                return
+            }
+
+            cell.backgroundColor = (m == "Dustin") ? .blue : .red
+        }
+
+        return IGListSingleSectionController(cellClass: UICollectionViewCell.self,
+                                             configureBlock: configureBlock,
+                                             sizeBlock: sizeBlock)
+    }
+
+    func emptyView(for listAdapter: IGListAdapter) -> UIView? {
+        return nil
+    }
+}

YogaKit/YogaKitSample/YogaKitSample/ViewController.m

@@ -0,0 +1,56 @@
+/**
+ * Copyright 2014-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the license found in the
+ * LICENSE-examples file in the root directory of this source tree.
+ */
+
+#import "ViewController.h"
+
+#import <YogaKit/UIView+Yoga.h>
+
+@implementation ViewController
+
+- (void)viewDidLoad
+{
+    UIView *root = self.view;
+    root.backgroundColor = [UIColor redColor];
+    root.yoga.isEnabled = YES;
+    root.yoga.width = YGPointValue(self.view.bounds.size.width);
+    root.yoga.height = YGPointValue(self.view.bounds.size.height);
+    root.yoga.alignItems = YGAlignCenter;
+    root.yoga.justifyContent = YGJustifyCenter;
+
+    UIView *child1 = [UIView new];
+    child1.backgroundColor = [UIColor blueColor];
+    child1.yoga.isEnabled = YES;
+    child1.yoga.width = YGPointValue(100);
+    child1.yoga.height = YGPointValue(100);
+
+    UIView *child2 = [UIView new];
+    child2.backgroundColor = [UIColor greenColor];
+    child2.frame = (CGRect) {
+        .size = {
+            .width = 200,
+            .height = 100,
+        }
+    };
+
+    UIView *child3 = [UIView new];
+    child3.backgroundColor = [UIColor yellowColor];
+    child3.frame = (CGRect) {
+        .size = {
+            .width = 100,
+            .height = 100,
+        }
+    };
+
+    [child2 addSubview:child3];
+    [root addSubview:child1];
+    [root addSubview:child2];
+    [root.yoga applyLayoutPreservingOrigin:NO];
+}
+
+
+@end

YogaKit/YogaKitSample/YogaKitSample/ViewControllers/BasicViewController.swift

@@ -0,0 +1,54 @@
+/**
+ * Copyright 2014-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the license found in the
+ * LICENSE-examples file in the root directory of this source tree.
+ */
+
+import UIKit
+import YogaKit
+
+final class BasicViewController: UIViewController {
+    override func viewDidLoad() {
+        let containerSize = self.view.bounds.size
+
+        let root = self.view!
+        root.backgroundColor = .white
+        root.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.width = YGValue(containerSize.width)
+            layout.height = YGValue(containerSize.height)
+            layout.alignItems = .center
+            layout.justifyContent = .center
+        }
+
+        let child1 = UIView()
+        child1.backgroundColor = .blue
+        child1.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.width = 100
+            layout.height = 10
+            layout.marginBottom = 25
+        }
+        root.addSubview(child1)
+
+        let child2 = UIView(frame: CGRect(x: 0, y: 0, width: 200, height: 200))
+        child2.backgroundColor = .green
+        child2.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.alignSelf = .flexEnd
+        }
+        root.addSubview(child2)
+
+        let child3 = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
+        child3.backgroundColor = .yellow
+        child3.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.alignSelf = .flexStart
+        }
+        root.addSubview(child3)
+
+        root.yoga.applyLayout(preservingOrigin: true)
+    }
+}

YogaKit/YogaKitSample/YogaKitSample/ViewControllers/LayoutInclusionViewController.swift

@@ -0,0 +1,80 @@
+/**
+ * Copyright 2014-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the license found in the
+ * LICENSE-examples file in the root directory of this source tree.
+ */
+
+import UIKit
+import YogaKit
+
+final class LayoutInclusionViewController: UIViewController {
+    private let button: UIButton = UIButton(type: .system)
+    private let disappearingView: UIView = UIView(frame: .zero)
+    private let contentView: UIView = UIView(frame: .zero)
+
+    override func viewDidLoad() {
+        let root = self.view!
+        root.backgroundColor = .white
+        root.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.flexDirection = .column
+            layout.justifyContent = .spaceAround
+        }
+
+        contentView.backgroundColor = .clear
+        contentView.layer.borderColor = UIColor.lightGray.cgColor
+        contentView.layer.borderWidth = 1.0
+        contentView.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.height = 300
+            layout.width = YGValue(self.view.bounds.size.width)
+            layout.flexDirection = .row
+            layout.justifyContent = .center
+            layout.paddingHorizontal = 25
+        }
+        self.view.addSubview(contentView)
+
+        let redView = UIView(frame: .zero)
+        redView.backgroundColor = .red
+        redView.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.flexGrow = 1
+            layout.flexShrink = 1
+        }
+        contentView.addSubview(redView)
+
+        disappearingView.backgroundColor = .blue
+        disappearingView.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.flexGrow = 1
+        }
+        contentView.addSubview(disappearingView)
+
+        button.setTitle("Add Blue View", for: UIControlState.selected)
+        button.setTitle("Remove Blue View", for: UIControlState.normal)
+        button.addTarget(self, action: #selector(buttonWasTapped), for: UIControlEvents.touchUpInside)
+        button.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.height = 300
+            layout.width = 300
+            layout.alignSelf = .center
+        }
+        root.addSubview(button)
+
+        root.yoga.applyLayout(preservingOrigin: false)
+    }
+
+    // MARK - UIButton Action
+    func buttonWasTapped() {
+        button.isSelected = !button.isSelected
+
+        button.isUserInteractionEnabled = false
+        disappearingView.yoga.isIncludedInLayout = !disappearingView.yoga.isIncludedInLayout
+        disappearingView.isHidden = !disappearingView.isHidden
+
+        contentView.yoga.applyLayout(preservingOrigin: true)
+        button.isUserInteractionEnabled = true
+    }
+}

YogaKit/YogaKitSample/YogaKitSample/Views/SingleLabelCollectionCell.swift

@@ -0,0 +1,49 @@
+/**
+ * Copyright 2014-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the license found in the
+ * LICENSE-examples file in the root directory of this source tree.
+ */
+
+import UIKit
+import YogaKit
+
+final class SingleLabelCollectionCell: UICollectionViewCell {
+    let label: UILabel = UILabel(frame: .zero)
+
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+
+        contentView.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.flexDirection = .column
+            layout.justifyContent = .flexEnd
+        }
+
+        label.textAlignment = .center
+        label.numberOfLines = 1
+        label.yoga.isIncludedInLayout = false
+        contentView.addSubview(label)
+
+        let border = UIView(frame: .zero)
+        border.backgroundColor = .lightGray
+        border.configureLayout { (layout) in
+            layout.isEnabled = true
+            layout.height = 0.5
+            layout.marginHorizontal = 25
+        }
+        contentView.addSubview(border)
+    }
+
+    required init?(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override func layoutSubviews() {
+        super.layoutSubviews()
+
+        contentView.yoga.applyLayout(preservingOrigin: false)
+        label.frame = contentView.bounds
+    }
+}

android/BUCK

@@ -0,0 +1,30 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+load("//tools/build_defs/oss:yoga_defs.bzl", "ANDROID_JAVA_TARGET", "ANDROID_RES_TARGET", "INFER_ANNOTATIONS_TARGET", "JAVA_TARGET", "PROGRUARD_ANNOTATIONS_TARGET", "yoga_android_aar", "yoga_android_resource")
+
+yoga_android_aar(
+    name = "android",
+    manifest_skeleton = "src/main/AndroidManifest.xml",
+    visibility = [
+        "PUBLIC",
+    ],
+    deps = [
+        ANDROID_JAVA_TARGET,
+        ANDROID_RES_TARGET,
+        INFER_ANNOTATIONS_TARGET,
+        JAVA_TARGET,
+        PROGRUARD_ANNOTATIONS_TARGET,
+    ],
+)
+
+yoga_android_resource(
+    name = "res",
+    package = "com.facebook.yoga.android",
+    res = "src/main/res",
+    visibility = [
+        "PUBLIC",
+    ],
+)

android/README.md

@@ -0,0 +1,21 @@
+# YogaLayout [![Platform](https://img.shields.io/badge/platforms-Android-orange.svg)](https://facebook.github.io/yoga/docs/api/android/) [![Languages](https://img.shields.io/badge/languages-Java-orange.svg)](https://facebook.github.io/yoga/docs/api/android/) [![Download](https://img.shields.io/bintray/v/facebook/maven/com.facebook.yoga.android:yoga-layout.svg)](https://bintray.com/facebook/maven/com.facebook.yoga.android%3Ayoga-layout/_latestVersion)
+
+## Installation
+
+YogaLayout is available via jcenter:
+
+    compile 'com.facebook.yoga.android:yoga-layout:1.2.0'
+
+## Getting Started
+
+Check out the docs [here](https://facebook.github.io/yoga/docs/api/android/).
+
+We also have a sample project.  To try it, clone the repo and run (with a device attached)
+
+    buck install -r android/sample
+
+## Contributing
+
+We welcome all pull-requests! At Facebook we sync the open source version of YogaKit daily, so we're always testing the latest changes.
+
+See the CONTRIBUTING file for how to help out.

android/build.gradle

@@ -0,0 +1,52 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+apply plugin: 'com.jfrog.bintray'
+apply plugin: 'com.android.library'
+apply plugin: 'com.github.dcendents.android-maven'
+apply plugin: 'maven-publish'
+
+version = VERSION_NAME
+group = GROUP
+
+android {
+    compileSdkVersion rootProject.compileSdkVersion
+    buildToolsVersion rootProject.buildToolsVersion
+
+    defaultConfig {
+        minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+    }
+
+    compileOptions {
+        targetCompatibility rootProject.targetCompatibilityVersion
+        sourceCompatibility rootProject.sourceCompatibilityVersion
+    }
+}
+
+dependencies {
+    api project(':yoga')
+}
+
+task sourcesJar(type: Jar) {
+    classifier = 'source'
+    from android.sourceSets.main.java.srcDirs
+}
+
+task javadoc(type: Javadoc) {
+    failOnError false
+    source = android.sourceSets.main.java.sourceFiles
+    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
+    classpath += configurations.compile
+}
+
+task javadocJar(type: Jar, dependsOn: javadoc) {
+    classifier = 'javadoc'
+    from javadoc.destinationDir
+}
+
+apply from: rootProject.file('gradle/release.gradle')

android/gradle.properties

@@ -0,0 +1,12 @@
+#
+#  Copyright (c) Facebook, Inc. and its affiliates.
+#
+#  This source code is licensed under the MIT license found in the LICENSE
+#  file in the root directory of this source tree.
+#
+
+GROUP=com.facebook.yoga.android
+POM_NAME=YogaLayout
+POM_DESCRIPTION=YogaLayout
+POM_ARTIFACT_ID=yoga-layout
+POM_PACKAGING=aar

android/sample/AndroidManifest.xml

@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<!--
+  Copyright 2014-present, Facebook, Inc.
+  All rights reserved.
+
+  This source code is licensed under the license found in the
+  LICENSE-examples file in the root directory of this source tree.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          package="com.facebook.samples.yoga"
+          android:versionCode="1"
+          android:versionName="1.0"
+          >
+
+  <variable name="applicationId" value="com.facebook.yoga"/>
+  <variable name="app_label" value="Yoga Sample App"/>
+
+  <uses-sdk
+    android:minSdkVersion="15"
+    android:targetSdkVersion="19"
+    />
+
+  <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+  <application
+      android:label="@string/app_name"
+      android:icon="@drawable/ic_launcher"
+      android:allowBackup="false"
+      android:theme="@style/NoTitleBarWhiteBG"
+      android:supportsRtl="true"
+      >
+
+    <activity
+        android:name=".MainActivity"
+        android:exported="true"
+        >
+
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN"/>
+        <category android:name="android.intent.category.LAUNCHER"/>
+      </intent-filter>
+
+    </activity>
+
+    <activity
+        android:name=".BenchmarkActivity"
+        android:exported="false"
+        />
+
+  </application>
+
+</manifest>

android/sample/BUCK

@@ -0,0 +1,36 @@
+# Copyright 2014-present, Facebook, Inc.
+# All rights reserved.
+#
+# This source code is licensed under the license found in the
+# LICENSE-examples file in the root directory of this source tree.
+
+load("//tools/build_defs:fb_native_wrapper.bzl", "fb_native")
+load("//tools/build_defs/oss:yoga_defs.bzl", "ANDROID_RES_TARGET", "ANDROID_SAMPLE_JAVA_TARGET", "ANDROID_SAMPLE_RES_TARGET", "yoga_android_binary", "yoga_android_resource")
+
+yoga_android_binary(
+    name = "sample",
+    keystore = ":debug_keystore",
+    manifest = "AndroidManifest.xml",
+    deps = [
+        ANDROID_SAMPLE_JAVA_TARGET,
+        ANDROID_SAMPLE_RES_TARGET,
+    ],
+)
+
+yoga_android_resource(
+    name = "res",
+    package = "com.facebook.samples.yoga",
+    res = "res",
+    visibility = [
+        "PUBLIC",
+    ],
+    deps = [
+        ANDROID_RES_TARGET,
+    ],
+)
+
+fb_native.keystore(
+    name = "debug_keystore",
+    properties = "debug.keystore.properties",
+    store = "debug.keystore",
+)

android/sample/debug.keystore.properties

@@ -0,0 +1,3 @@
+key.alias=androiddebugkey
+key.store.password=android
+key.alias.password=android

android/sample/java/com/facebook/samples/yoga/BUCK

@@ -0,0 +1,21 @@
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the license found in the
+# LICENSE-examples file in the root directory of this source tree.
+
+load("//tools/build_defs/oss:yoga_defs.bzl", "ANDROID_JAVA_TARGET", "ANDROID_SAMPLE_RES_TARGET", "ANDROID_SUPPORT_TARGET", "APPCOMPAT_TARGET", "SOLOADER_TARGET", "yoga_android_library")
+
+yoga_android_library(
+    name = "yoga",
+    srcs = glob(["**/*.java"]),
+    visibility = [
+        "PUBLIC",
+    ],
+    deps = [
+        ANDROID_JAVA_TARGET,
+        ANDROID_SAMPLE_RES_TARGET,
+        ANDROID_SUPPORT_TARGET,
+        APPCOMPAT_TARGET,
+        SOLOADER_TARGET,
+    ],
+)

android/sample/java/com/facebook/samples/yoga/BenchmarkActivity.java

@@ -0,0 +1,117 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+package com.facebook.samples.yoga;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.support.v4.app.FragmentPagerAdapter;
+import android.support.v4.app.FragmentManager;
+import android.support.v4.app.Fragment;
+import android.support.v4.app.FragmentTransaction;
+import android.support.v4.view.ViewPager;
+import android.view.LayoutInflater;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.Menu;
+import android.support.v7.app.ActionBar;
+
+import com.facebook.samples.yoga.R;
+import com.facebook.yoga.android.YogaViewLayoutFactory;
+
+public class BenchmarkActivity extends AppCompatActivity {
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    LayoutInflater.from(this).setFactory(YogaViewLayoutFactory.getInstance());
+    super.onCreate(savedInstanceState);
+
+    setContentView(R.layout.benchmark_select_layout);
+
+    ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
+    viewPager.setAdapter(new PagerAdapter(getSupportFragmentManager()));
+
+    final ActionBar actionBar = getSupportActionBar();
+    actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
+
+    ActionBar.TabListener tabListener = new ActionBar.TabListener() {
+      public void onTabSelected(ActionBar.Tab tab, FragmentTransaction ft) {
+        ViewPager viewPager = (ViewPager) findViewById(R.id.viewpager);
+        viewPager.setCurrentItem(tab.getPosition());
+      }
+
+      public void onTabUnselected(ActionBar.Tab tab, FragmentTransaction ft) {
+      }
+
+      public void onTabReselected(ActionBar.Tab tab, FragmentTransaction ft) {
+      }
+    };
+    actionBar.addTab(
+            actionBar.newTab()
+                    .setText("Inflate")
+                    .setTabListener(tabListener));
+    actionBar.addTab(
+            actionBar.newTab()
+                    .setText("Measure")
+                    .setTabListener(tabListener));
+    actionBar.addTab(
+            actionBar.newTab()
+                    .setText("Layout")
+                    .setTabListener(tabListener));
+
+    viewPager.setOnPageChangeListener(
+            new ViewPager.SimpleOnPageChangeListener() {
+              @Override
+              public void onPageSelected(int position) {
+                // When swiping between pages, select the
+                // corresponding tab.
+                actionBar.setSelectedNavigationItem(position);
+              }
+            });
+
+    viewPager.setOffscreenPageLimit(3);
+  }
+
+  @Override
+  public boolean onCreateOptionsMenu(Menu menu) {
+    MenuInflater inflater = getMenuInflater();
+    inflater.inflate(R.menu.action_bar_benchmark, menu);
+    return true;
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    // There is only one option
+    Intent intent = new Intent(this, MainActivity.class);
+    startActivity(intent);
+    this.finish();
+    return true;
+  }
+
+  public static class PagerAdapter extends FragmentPagerAdapter {
+    public PagerAdapter(FragmentManager fm) {
+      super(fm);
+    }
+
+    @Override
+    public Fragment getItem(int i) {
+      switch (i) {
+        case 0:
+          return new BenchmarkInflate();
+        case 1:
+          return new BenchmarkMeasure();
+        default:
+          return new BenchmarkLayout();
+      }
+    }
+
+    @Override
+    public int getCount() {
+      return 3;
+    }
+  }
+}

android/sample/java/com/facebook/samples/yoga/BenchmarkAggregator.java

@@ -0,0 +1,197 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+package com.facebook.samples.yoga;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.io.PrintWriter;
+import java.lang.Math;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+import java.text.DateFormat;
+import java.util.Date;
+
+import android.content.Context;
+import android.util.Log;
+import android.os.Environment;
+
+import static java.util.Collections.sort;
+
+public class BenchmarkAggregator {
+
+  private final int GRAPH_WIDTH = 30;
+  private final int GRAPH_HEIGHT = 6;
+
+  private List<Long> times;
+  private boolean tracing;
+  private long lastTraceStart;
+
+  private boolean statsFresh;
+  private long mean;
+  private long variance;
+  private long stddev;
+  private long min;
+  private long max;
+  private long p10;
+  private long p50;
+  private long p90;
+
+  private String name;
+
+  public BenchmarkAggregator(String name) {
+    times = new ArrayList<>();
+    tracing = false;
+    this.name = name;
+  }
+
+  public void startTrace() {
+    if (tracing) {
+      throw new RuntimeException("Cannot start trace while running previous one");
+    }
+    tracing = true;
+    lastTraceStart = System.nanoTime();
+  }
+
+  public void endTrace() {
+    if (!tracing) {
+      throw new RuntimeException("Cannot stop trace if none are running!");
+    }
+    times.add(System.nanoTime() - lastTraceStart);
+    tracing = false;
+    statsFresh = false;
+  }
+
+  private void computeStats() {
+    if (statsFresh) {
+      return;
+    }
+
+    sort(times);
+
+    min = Long.MAX_VALUE;
+    max = -1;
+    mean = 0;
+    for (long f: times) {
+      mean += f;
+      if (f < min) {
+        min = f;
+      }
+      if (f > max) {
+        max = f;
+      }
+    }
+    mean /= times.size();
+
+    variance = 0;
+    for (long f: times) {
+      variance += (f-mean)*(f-mean);
+    }
+    variance /= times.size();
+    stddev = (long) Math.sqrt((double) variance);
+
+    p10 = times.get(times.size()*10/100);
+    p50 = times.get(times.size()*50/100);
+    p90 = times.get(times.size()*90/100);
+
+    statsFresh = true;
+  }
+
+  public String toString() {
+    computeStats();
+    return String.format(
+        "%s:\n" +
+            "| %d samples\n" +
+            "| Mean %.3f\u00B1%.3fms\n" + // plusminus
+            "| Min %.3fms ; Max %.3fms\n" +
+            "| p10 %.3fms ; p50 %.3fms ; p90 %.3fms\n" +
+            "%s",
+        name,
+        times.size(),
+        mean/10e6,
+        stddev/10e6,
+        min/10e6,
+        max/10e6,
+        p10/10e6,
+        p50/10e6,
+        p90/10e6,
+        makeGraph());
+  }
+
+  private String makeGraph() {
+    char canvas[][] = new char[GRAPH_HEIGHT][GRAPH_WIDTH];
+    for (int i = 0; i < GRAPH_HEIGHT; i++)
+      for (int j = 0; j < GRAPH_WIDTH; j++)
+        canvas[i][j] = ' ';
+
+    long bucketSize = (p90 - p10) / GRAPH_WIDTH+1;
+    int bucketCount[] = new int[GRAPH_WIDTH];
+    for (long time : times) {
+      if (time<p90 && time>p10) {
+        bucketCount[(int) ((time - p10) / bucketSize)]++;
+      }
+    }
+
+    int maxBucket = 0;
+    for (int i = 0; i < GRAPH_WIDTH; i++)
+      if (bucketCount[i] > maxBucket) {
+        maxBucket = bucketCount[i];
+      }
+
+    for (int i = 0; i < GRAPH_HEIGHT; i++)
+      for (int j = 0; j < GRAPH_WIDTH; j++)
+        if (i < bucketCount[j] * GRAPH_HEIGHT / maxBucket) {
+          canvas[i][j] = 'Z';
+        }
+
+    String graph = new String();
+    for (int i = 0; i < GRAPH_HEIGHT; i++)
+    {
+      int percentage = 100 * (GRAPH_HEIGHT - i - 1) * maxBucket / (times.size() * GRAPH_HEIGHT);
+      graph += String.format("| %2d%% ", percentage);
+      for (int j = 0; j < GRAPH_WIDTH; j++)
+        graph += canvas[GRAPH_HEIGHT-1-i][j];
+      graph += '\n';
+    }
+
+    graph += "|     p10";
+    for (int i = 0; i < GRAPH_WIDTH-6; i++)
+      graph += " ";
+    graph += "p90\n";
+    return graph;
+  }
+
+  /**
+   * Dumps the collected times to a file on the device.  This allows us to grab the raw data
+   * and perform more in-depth analysis.
+   */
+  public void dump(Context context) {
+    String state = Environment.getExternalStorageState();
+    if (!Environment.MEDIA_MOUNTED.equals(state)) {
+      Log.e("YogaLayoutBenchmark","No external file storage");
+      return;
+    }
+
+    SimpleDateFormat format = new SimpleDateFormat("yyyyMMddHHmmss");
+    String filename = format.format(new Date()) + "_" + name.replace(' ','_');
+    File file = new File(context.getExternalFilesDir(
+            Environment.DIRECTORY_DOCUMENTS), filename);
+
+    try {
+      PrintWriter printWriter = new PrintWriter(file);
+      for (long l : times) {
+        printWriter.println(l);
+      }
+      printWriter.close();
+
+      Log.i("YogaLayoutBenchmark","Benchmark data saved in "+file.getPath());
+    } catch (java.io.IOException e) {
+      Log.e("YogaLayoutBenchmark", "Could not save benchmark data", e);
+    }
+  }
+}

android/sample/java/com/facebook/samples/yoga/BenchmarkFragment.java

@@ -0,0 +1,114 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+package com.facebook.samples.yoga;
+
+
+import java.util.Random;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.view.ViewParent;
+import android.widget.LinearLayout;
+import android.widget.Spinner;
+import android.widget.TextView;
+import android.widget.ArrayAdapter;
+import android.widget.AdapterView;
+
+import com.facebook.samples.yoga.R;
+import com.facebook.yoga.android.YogaLayout;
+
+public class BenchmarkFragment extends Fragment implements AdapterView.OnItemSelectedListener {
+  private LayoutInflater mInflater;
+
+  protected com.facebook.yoga.android.YogaLayout rootLayout;
+  protected int yogaLayout;
+  protected int linearLayout;
+
+  static final Random random = new Random();
+
+  static void randomizeText(View root) {
+    if (root instanceof TextView) {
+      ((TextView) root).setText("" + random.nextInt(1000));
+      ((TextView) root).setTextSize(10 + random.nextInt(20));
+      ViewParent parent = root.getParent();
+      if (parent instanceof YogaLayout) {
+        ((YogaLayout) parent).invalidate(root);
+      }
+    } else if (root instanceof ViewGroup) {
+      for (int i = 0; i < ((ViewGroup) root).getChildCount(); i++) {
+        randomizeText(((ViewGroup) root).getChildAt(i));
+      }
+    }
+  }
+
+  public BenchmarkFragment() {
+  }
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    super.onCreate(savedInstanceState);
+  }
+
+  @Override
+  public View onCreateView(
+      LayoutInflater inflater,
+      ViewGroup container,
+      Bundle savedInstanceState) {
+    mInflater = inflater;
+
+    rootLayout = (YogaLayout) inflater.inflate(
+        R.layout.benchmark_fragment,
+        container,
+        false);
+
+    Spinner benchmarkSelect = (Spinner) rootLayout.findViewById(R.id.benchmarkSelect);
+    String[] items = new String[]{"Basic", "Typical", "Nested"};
+    ArrayAdapter<String> adapter = new ArrayAdapter<>(getActivity(), android.R.layout.simple_spinner_dropdown_item, items);
+    benchmarkSelect.setAdapter(adapter);
+    benchmarkSelect.setOnItemSelectedListener(this);
+    return rootLayout;
+  }
+
+  @Override
+  public void onItemSelected(AdapterView<?> parent, View view, int pos, long id) {
+    switch (pos) {
+      case 0:
+        yogaLayout = R.layout.benchmark_layout_1;
+        linearLayout = R.layout.benchmark_layout_1_linear;
+        break;
+      case 1:
+        yogaLayout = R.layout.benchmark_layout_2;
+        linearLayout = R.layout.benchmark_layout_2_linear;
+        break;
+      case 2:
+      default:
+        yogaLayout = R.layout.benchmark_layout_3;
+        linearLayout = R.layout.benchmark_layout_3_linear;
+        break;
+    }
+    updatePreview();
+  }
+
+  @Override
+  public void onNothingSelected(AdapterView<?> parent) {
+    yogaLayout = R.layout.benchmark_layout_1;
+    linearLayout = R.layout.benchmark_layout_1_linear;
+    updatePreview();
+  }
+
+  private void updatePreview() {
+    LinearLayout previewLayout = (LinearLayout) rootLayout.findViewById(R.id.preview);
+    View v  = mInflater.inflate(yogaLayout, rootLayout, false);
+    v.setLayoutParams(new LinearLayout.LayoutParams(
+        LinearLayout.LayoutParams.MATCH_PARENT,
+        LinearLayout.LayoutParams.MATCH_PARENT));
+    previewLayout.removeAllViews();
+    previewLayout.addView(v);
+  }
+}

android/sample/java/com/facebook/samples/yoga/BenchmarkInflate.java

@@ -0,0 +1,69 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+package com.facebook.samples.yoga;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.TextView;
+import android.widget.Button;
+import android.view.ViewGroup;
+import android.util.Log;
+import com.facebook.samples.yoga.R;
+
+public class BenchmarkInflate extends BenchmarkFragment {
+
+  @Override
+  public View onCreateView(
+    LayoutInflater inflater,
+    ViewGroup container,
+    Bundle savedInstanceState) {
+    super.onCreateView(inflater, container, savedInstanceState);
+
+    Button b = (Button) rootLayout.findViewById(R.id.btn);
+    b.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        startBenchmark();
+      }
+    });
+
+    return rootLayout;
+  }
+
+  protected void startBenchmark() {
+    LayoutInflater inflater = LayoutInflater.from(getActivity());
+    TextView textView = (TextView) rootLayout.findViewById(R.id.text);
+
+    final int ITERATIONS = 500;
+
+    inflater.inflate(yogaLayout, null);
+    inflater.inflate(linearLayout, null);
+
+    BenchmarkAggregator yogaInflationAggregator = new BenchmarkAggregator("Yoga Inflate");
+    BenchmarkAggregator linearInflationAggregator = new BenchmarkAggregator("Linear Inflate");
+    for (int i = 0; i < ITERATIONS; i++) {
+      yogaInflationAggregator.startTrace();
+      inflater.inflate(yogaLayout, null);
+      yogaInflationAggregator.endTrace();
+      linearInflationAggregator.startTrace();
+      inflater.inflate(linearLayout, null);
+      linearInflationAggregator.endTrace();
+    }
+
+    textView.setText(
+        yogaInflationAggregator.toString()+
+            "\n"+
+            linearInflationAggregator.toString());
+    Log.i(
+      "YogaLayoutBenchmark",
+      yogaInflationAggregator.toString()+
+        "\n"+
+        linearInflationAggregator.toString());
+    rootLayout.invalidate();
+  }
+}

android/sample/java/com/facebook/samples/yoga/BenchmarkLayout.java

@@ -0,0 +1,78 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+package com.facebook.samples.yoga;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+import com.facebook.samples.yoga.R;
+
+import java.util.Random;
+
+public class BenchmarkLayout extends BenchmarkFragment {
+
+  @Override
+  public View onCreateView(
+    LayoutInflater inflater,
+    ViewGroup container,
+    Bundle savedInstanceState) {
+    super.onCreateView(inflater, container, savedInstanceState);
+
+    Button b = (Button) rootLayout.findViewById(R.id.btn);
+    b.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        startBenchmark();
+      }
+    });
+
+    return rootLayout;
+  }
+
+  protected void startBenchmark() {
+    LayoutInflater inflater = LayoutInflater.from(getActivity());
+    TextView textView = (TextView) rootLayout.findViewById(R.id.text);
+    Random random = new Random();
+
+    final int ITERATIONS = 500;
+
+    BenchmarkAggregator yogaInflationAggregator = new BenchmarkAggregator("Yoga Layout");
+    BenchmarkAggregator linearInflationAggregator = new BenchmarkAggregator("Linear Layout");
+    View yogaView = inflater.inflate(yogaLayout, null);
+    View linearView = inflater.inflate(linearLayout, null);
+    for (int i = 0; i < ITERATIONS; i++) {
+      randomizeText(yogaView);
+      randomizeText(linearView);
+      yogaView.measure(
+          View.MeasureSpec.makeMeasureSpec(1000, View.MeasureSpec.EXACTLY),
+          View.MeasureSpec.makeMeasureSpec(1000, View.MeasureSpec.EXACTLY));
+      linearView.measure(
+          View.MeasureSpec.makeMeasureSpec(1000, View.MeasureSpec.EXACTLY),
+          View.MeasureSpec.makeMeasureSpec(1000, View.MeasureSpec.EXACTLY));
+      yogaInflationAggregator.startTrace();
+      yogaView.layout(0, 0, yogaView.getMeasuredWidth(), yogaView.getMeasuredHeight());
+      yogaInflationAggregator.endTrace();
+      linearInflationAggregator.startTrace();
+      linearView.layout(0, 0, linearView.getMeasuredWidth(), linearView.getMeasuredHeight());
+      linearInflationAggregator.endTrace();
+    }
+
+    textView.setText(
+        yogaInflationAggregator.toString()+
+            "\n"+
+            linearInflationAggregator.toString());
+    Log.i(
+      "YogaLayoutBenchmark",
+      yogaInflationAggregator.toString()+
+        "\n"+
+        linearInflationAggregator.toString());
+  }
+}

android/sample/java/com/facebook/samples/yoga/BenchmarkMeasure.java

@@ -0,0 +1,79 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+package com.facebook.samples.yoga;
+
+import android.os.Bundle;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+import android.widget.TextView;
+import com.facebook.samples.yoga.R;
+
+import java.util.Random;
+
+public class BenchmarkMeasure extends BenchmarkFragment {
+
+  @Override
+  public View onCreateView(
+    LayoutInflater inflater,
+    ViewGroup container,
+    Bundle savedInstanceState) {
+    super.onCreateView(inflater, container, savedInstanceState);
+
+    Button b = (Button) rootLayout.findViewById(R.id.btn);
+    b.setOnClickListener(new View.OnClickListener() {
+      @Override
+      public void onClick(View v) {
+        startBenchmark();
+      }
+    });
+
+    return rootLayout;
+  }
+
+  protected void startBenchmark() {
+    LayoutInflater inflater = LayoutInflater.from(getActivity());
+    TextView textView = (TextView) rootLayout.findViewById(R.id.text);
+    Random random = new Random();
+
+    final int ITERATIONS = 500;
+
+    BenchmarkAggregator yogaMeasureAggregator = new BenchmarkAggregator("Yoga Measure");
+    BenchmarkAggregator linearMeasureAggregator = new BenchmarkAggregator("Linear Measure");
+    View yogaView = inflater.inflate(yogaLayout, null);
+    View linearView = inflater.inflate(linearLayout, null);
+    for (int i = 0; i < ITERATIONS; i++) {
+      randomizeText(yogaView);
+      randomizeText(linearView);
+      yogaMeasureAggregator.startTrace();
+      yogaView.measure(
+          View.MeasureSpec.makeMeasureSpec(1000, View.MeasureSpec.EXACTLY),
+          View.MeasureSpec.makeMeasureSpec(1000, View.MeasureSpec.EXACTLY));
+      yogaMeasureAggregator.endTrace();
+      linearMeasureAggregator.startTrace();
+      linearView.measure(
+          View.MeasureSpec.makeMeasureSpec(1000, View.MeasureSpec.EXACTLY),
+          View.MeasureSpec.makeMeasureSpec(1000, View.MeasureSpec.EXACTLY));
+      linearMeasureAggregator.endTrace();
+    }
+
+    textView.setText(
+        yogaMeasureAggregator.toString()+
+            "\n"+
+            linearMeasureAggregator.toString());
+    Log.i(
+      "YogaLayoutBenchmark",
+      yogaMeasureAggregator.toString()+
+        "\n"+
+        linearMeasureAggregator.toString());
+
+    yogaMeasureAggregator.dump(getActivity());
+    linearMeasureAggregator.dump(getActivity());
+  }
+}

android/sample/java/com/facebook/samples/yoga/MainActivity.java

@@ -0,0 +1,52 @@
+/**
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+package com.facebook.samples.yoga;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.LayoutInflater;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.Menu;
+
+import com.facebook.samples.yoga.R;
+import com.facebook.soloader.SoLoader;
+import com.facebook.yoga.android.YogaViewLayoutFactory;
+
+/**
+ * An activity to show off Yoga in Android.  This activity shows a simple layout (defined in
+ * {@code main_layout.xml}) that shows off the awesome functionality of the Yoga layout engine
+ * as well as some optimisations on layout systems that it facilitates.
+ */
+public class MainActivity extends AppCompatActivity {
+
+  @Override
+  public void onCreate(Bundle savedInstanceState) {
+    LayoutInflater.from(this).setFactory(YogaViewLayoutFactory.getInstance());
+    super.onCreate(savedInstanceState);
+    SoLoader.init(this, false);
+
+    setContentView(R.layout.main_layout);
+  }
+
+  @Override
+  public boolean onCreateOptionsMenu(Menu menu) {
+    MenuInflater inflater = getMenuInflater();
+    inflater.inflate(R.menu.action_bar_home, menu);
+    return true;
+  }
+
+  @Override
+  public boolean onOptionsItemSelected(MenuItem item) {
+    // There is only one option
+    Intent intent = new Intent(this, BenchmarkActivity.class);
+    startActivity(intent);
+    this.finish();
+    return true;
+  }
+}