Migrate YogaConfigJNIBase to Kotlin

Reviewed By: VladimirMakaev

Differential Revision: D80576929

fbshipit-source-id: 1310f77f5d9d489b780b14875454ebda7f7adfc9

.clang-format

@@ -1,61 +1,3 @@
-Language: Cpp
-AccessModifierOffset: -2
-AlignAfterOpenBracket: AlwaysBreak
-AlignConsecutiveAssignments: false
-AlignConsecutiveDeclarations: false
-AlignEscapedNewlines: Left
-AlignOperands: false
-AlignTrailingComments: false
-AllowAllParametersOfDeclarationOnNextLine: false
-AllowShortBlocksOnASingleLine: false
-AllowShortCaseLabelsOnASingleLine: false
-AllowShortFunctionsOnASingleLine: Inline
-AllowShortIfStatementsOnASingleLine: false
-AllowShortLoopsOnASingleLine: true
-AlwaysBreakAfterReturnType: None
-AlwaysBreakBeforeMultilineStrings: true
-AlwaysBreakTemplateDeclarations: Yes
-BinPackArguments: false
-BinPackParameters: false
-BreakBeforeBinaryOperators: false
-BreakBeforeBraces: Attach
-BreakBeforeTernaryOperators: true
-BreakConstructorInitializers: BeforeColon
-BreakInheritanceList: BeforeColon
-BreakStringLiterals: true
-ColumnLimit: 80
-CompactNamespaces: false
-ConstructorInitializerAllOnOneLineOrOnePerLine: true
-ConstructorInitializerIndentWidth: 4
-ContinuationIndentWidth: 4
-Cpp11BracedListStyle: true
-DerivePointerAlignment: false
-FixNamespaceComments: true
-IndentCaseLabels: true
-IndentPPDirectives: None
-IndentWidth: 2
-IndentWrappedFunctionNames: false
-MaxEmptyLinesToKeep: 1
-NamespaceIndentation: None
-PenaltyReturnTypeOnItsOwnLine: 2000
-PointerAlignment: Left
-ReflowComments: true
-SortIncludes: false
-SortUsingDeclarations: true
-SpaceAfterCStyleCast: true
-SpaceAfterTemplateKeyword: true
-SpaceBeforeAssignmentOperators: true
-SpaceBeforeCpp11BracedList: false
-SpaceBeforeCtorInitializerColon: true
-SpaceBeforeInheritanceColon: true
-SpaceBeforeParens: ControlStatements
-SpaceBeforeRangeBasedForLoopColon: true
-SpaceInEmptyParentheses: false
-SpacesBeforeTrailingComments: 1
-Standard: Cpp11
-UseTab: Never
----
-Language: ObjC
 AccessModifierOffset: -1
 AlignAfterOpenBracket: AlwaysBreak
 AlignConsecutiveMacros: false
@@ -165,4 +107,3 @@ Standard: Latest
 TabWidth: 8
 UseCRLF: false
 UseTab: Never
-...

.clang-format-ignore

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

.clang-tidy

@@ -0,0 +1,217 @@
+---
+InheritParentConfig: true
+Checks: '>
+bugprone-argument-comment,
+bugprone-assert-side-effect,
+bugprone-bool-pointer-implicit-conversion,
+bugprone-copy-constructor-init,
+bugprone-dangling-handle,
+bugprone-exception-escape,
+bugprone-fold-init-type,
+bugprone-forward-declaration-namespace,
+bugprone-forwarding-reference-overload,
+bugprone-incorrect-enable-if,
+bugprone-inaccurate-erase,
+bugprone-incorrect-roundings,
+bugprone-infinite-loop,
+bugprone-integer-division,
+bugprone-macro-parentheses,
+bugprone-macro-repeated-side-effects,
+bugprone-misplaced-operator-in-strlen-in-alloc,
+bugprone-misplaced-widening-cast,
+bugprone-move-forwarding-reference,
+bugprone-multiple-statement-macro,
+bugprone-optional-value-conversion,
+bugprone-parent-virtual-call,
+bugprone-redundant-branch-condition,
+bugprone-shared-ptr-array-mismatch,
+bugprone-signed-char-misuse,
+bugprone-sizeof-container,
+bugprone-sizeof-expression,
+bugprone-string-constructor,
+bugprone-string-integer-assignment,
+bugprone-string-literal-with-embedded-nul,
+bugprone-suspicious-enum-usage,
+bugprone-suspicious-memset-usage,
+bugprone-suspicious-missing-comma,
+bugprone-suspicious-semicolon,
+bugprone-suspicious-string-compare,
+bugprone-swapped-arguments,
+bugprone-terminating-continue,
+bugprone-throw-keyword-missing,
+bugprone-too-small-loop-variable,
+bugprone-undefined-memory-manipulation,
+bugprone-undelegated-constructor,
+bugprone-unique-ptr-array-mismatch,
+bugprone-unsafe-functions,
+bugprone-unused-raii,
+bugprone-unused-return-value,
+bugprone-use-after-move,
+bugprone-virtual-near-miss,
+clang-analyzer-apiModeling.google.GTest,
+clang-analyzer-apiModeling.StdCLibraryFunctions,
+clang-analyzer-apiModeling.TrustNonnull,
+clang-analyzer-core.builtin.BuiltinFunctions,
+clang-analyzer-core.builtin.NoReturnFunctions,
+clang-analyzer-core.CallAndMessage,
+clang-analyzer-core.DivideZero,
+clang-analyzer-core.DynamicTypePropagation,
+clang-analyzer-core.NonnilStringConstants,
+clang-analyzer-core.NonNullParamChecker,
+clang-analyzer-core.NullDereference,
+clang-analyzer-core.StackAddressEscape,
+clang-analyzer-core.UndefinedBinaryOperatorResult,
+clang-analyzer-core.uninitialized.ArraySubscript,
+clang-analyzer-core.uninitialized.Assign,
+clang-analyzer-core.uninitialized.Branch,
+clang-analyzer-core.uninitialized.CapturedBlockVariable,
+clang-analyzer-core.uninitialized.UndefReturn,
+clang-analyzer-core.VLASize,
+clang-analyzer-cplusplus.InnerPointer,
+clang-analyzer-cplusplus.Move,
+clang-analyzer-cplusplus.NewDelete,
+clang-analyzer-cplusplus.NewDeleteLeaks,
+clang-analyzer-cplusplus.SelfAssignment,
+clang-analyzer-deadcode.DeadStores,
+clang-analyzer-nullability.NullableDereferenced,
+clang-analyzer-nullability.NullablePassedToNonnull,
+clang-analyzer-nullability.NullableReturnedFromNonnull,
+clang-analyzer-nullability.NullPassedToNonnull,
+clang-analyzer-nullability.NullReturnedFromNonnull,
+clang-analyzer-optin.cplusplus.VirtualCall,
+clang-analyzer-optin.mpi.MPI-Checker,
+clang-analyzer-optin.performance.GCDAntipattern,
+clang-analyzer-optin.performance.Padding,
+clang-analyzer-optin.portability.UnixAPI,
+clang-analyzer-security.FloatLoopCounter,
+clang-analyzer-security.insecureAPI.bcmp,
+clang-analyzer-security.insecureAPI.bcopy,
+clang-analyzer-security.insecureAPI.bzero,
+clang-analyzer-security.insecureAPI.getpw,
+clang-analyzer-security.insecureAPI.gets,
+clang-analyzer-security.insecureAPI.mkstemp,
+clang-analyzer-security.insecureAPI.mktemp,
+clang-analyzer-security.insecureAPI.rand,
+clang-analyzer-security.insecureAPI.strcpy,
+clang-analyzer-security.insecureAPI.UncheckedReturn,
+clang-analyzer-security.insecureAPI.vfork,
+clang-analyzer-unix.API,
+clang-analyzer-unix.cstring.BadSizeArg,
+clang-analyzer-unix.cstring.NullArg,
+clang-analyzer-unix.Malloc,
+clang-analyzer-unix.MallocSizeof,
+clang-analyzer-unix.MismatchedDeallocator,
+clang-analyzer-unix.Vfork,
+clang-analyzer-valist.CopyToSelf,
+clang-analyzer-valist.Uninitialized,
+clang-analyzer-valist.Unterminated,
+clang-diagnostic-*,
+cppcoreguidelines-avoid-const-or-ref-data-members,
+cppcoreguidelines-avoid-non-const-global-variables,
+cppcoreguidelines-init-variables,
+cppcoreguidelines-interfaces-global-init,
+cppcoreguidelines-macro-usage,
+cppcoreguidelines-missing-std-forward,
+cppcoreguidelines-narrowing-conversions,
+cppcoreguidelines-no-malloc,
+cppcoreguidelines-prefer-member-initializer,
+cppcoreguidelines-pro-bounds-pointer-arithmetic,
+cppcoreguidelines-pro-type-const-cast,
+cppcoreguidelines-pro-type-cstyle-cast,
+cppcoreguidelines-pro-type-member-init,
+cppcoreguidelines-pro-type-reinterpret-cast,
+cppcoreguidelines-pro-type-union-access,
+cppcoreguidelines-pro-type-vararg,
+cppcoreguidelines-slicing,
+cppcoreguidelines-special-member-functions,
+facebook-hte-BadEnum,
+facebook-hte-MissingStatic,
+google-build-using-namespace,
+misc-definitions-in-headers,
+misc-header-include-cycle,
+misc-misplaced-const,
+misc-new-delete-overloads,
+misc-non-copyable-objects,
+misc-static-assert,
+misc-throw-by-value-catch-by-reference,
+misc-unconventional-assign-operator,
+misc-uniqueptr-reset-release,
+misc-unused-alias-decls,
+misc-unused-parameters,
+misc-unused-using-decls,
+modernize-avoid-bind,
+modernize-avoid-c-arrays,
+modernize-concat-nested-namespaces,
+modernize-deprecated-headers,
+modernize-deprecated-ios-base-aliases,
+modernize-loop-convert,
+modernize-make-shared,
+modernize-make-unique,
+modernize-pass-by-value,
+modernize-raw-string-literal,
+modernize-redundant-void-arg,
+modernize-replace-auto-ptr,
+modernize-replace-random-shuffle,
+modernize-return-braced-init-list,
+modernize-shrink-to-fit,
+modernize-unary-static-assert,
+modernize-use-auto,
+modernize-use-bool-literals,
+modernize-use-constraints,
+modernize-use-default-member-init,
+modernize-use-designated-initializers,
+modernize-use-emplace,
+modernize-use-equals-default,
+modernize-use-equals-delete,
+modernize-use-noexcept,
+modernize-use-nullptr,
+modernize-use-override,
+modernize-use-starts-ends-with,
+modernize-use-transparent-functors,
+modernize-use-using,
+performance-faster-string-find,
+performance-for-range-copy,
+performance-implicit-conversion-in-loop,
+performance-inefficient-algorithm,
+performance-inefficient-string-concatenation,
+performance-inefficient-vector-operation,
+performance-move-const-arg,
+performance-move-constructor-init,
+performance-noexcept-move-constructor,
+performance-type-promotion-in-math-fn,
+performance-unnecessary-copy-initialization,
+performance-unnecessary-value-param,
+readability-avoid-const-params-in-decls,
+readability-braces-around-statements,
+readability-const-return-type,
+readability-container-size-empty,
+readability-delete-null-pointer,
+readability-deleted-default,
+readability-implicit-bool-conversion,
+readability-inconsistent-declaration-parameter-name,
+readability-isolate-declaration,
+readability-misplaced-array-index,
+readability-named-parameter,
+readability-non-const-parameter,
+readability-redundant-control-flow,
+readability-redundant-declaration,
+readability-redundant-function-ptr-dereference,
+readability-redundant-preprocessor,
+readability-redundant-smartptr-get,
+readability-redundant-string-cstr,
+readability-redundant-string-init,
+readability-simplify-boolean-expr,
+readability-simplify-subscript-expr,
+readability-static-accessed-through-instance,
+readability-static-definition-in-anonymous-namespace,
+readability-string-compare,
+readability-uniqueptr-delete-release,
+'
+
+CheckOptions:
+- key: performance-unnecessary-value-param.AllowedTypes
+  value: '[Pp]ointer$;[Pp]tr$;[Rr]ef(erence)?$;'
+- key: performance-unnecessary-copy-initialization.AllowedTypes
+  value: '[Pp]ointer$;[Pp]tr$;[Rr]ef(erence)?$'
+
+...

.eslintrc.cjs

@@ -0,0 +1,84 @@
+/**
+ * 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: ['**/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/cache-emsdk/action.yml

@@ -0,0 +1,10 @@
+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-emsdk/action.yml

@@ -1,23 +0,0 @@
-name: Install emsdk (including emcc)
-inputs:
-  version:
-    description: EMCC Version to install
-    required: false
-    default: 3.1.28
-
-runs:
-  using: "composite"
-  steps:
-    - name: Clone emsdk repo
-      working-directory: ${{ runner.temp }}
-      shell: bash
-      run: git clone https://github.com/emscripten-core/emsdk.git
-
-    - name: emdsk install
-      working-directory: ${{ runner.temp }}/emsdk
-      shell: bash
-      run: |
-        ./emsdk install ${{ inputs.version }}
-        ./emsdk activate ${{ inputs.version }}
-        echo $RUNNER_TEMP/emsdk >> $GITHUB_PATH
-        echo $RUNNER_TEMP/emsdk/upstream/emscripten >> $GITHUB_PATH

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

@@ -7,3 +7,7 @@ runs:
     - 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

@@ -1,4 +1,9 @@
 name: Setup C++ envirionment
+inputs:
+  toolchain:
+    description: Compiler toolchain to use (Clang, GCC, or MSVC)
+    required: false
+    default: 'Clang'
 
 runs:
   using: "composite"
@@ -7,6 +12,23 @@ runs:
       if: ${{ runner.os != 'Windows' }}
       uses: ./.github/actions/install-ninja
 
+    - name: Set Clang as compiler
+      if: ${{ inputs.toolchain == 'Clang' }}
+      shell: bash
+      run: |
+        sudo apt-get install -y libc++-dev libc++abi-dev
+        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

@@ -3,18 +3,16 @@ name: Setup JavaScript envirionment
 runs:
   using: "composite"
   steps:
-    - name: Install Node
-      uses: actions/setup-node@v1
+    - name: Setup Node environment
+      uses: actions/setup-node@v3
       with:
-        node-version: 18.x
-
-    - name: Install emsdk
-      uses: ./.github/actions/install-emsdk
-
-    - name: Install Ninja
-      uses: ./.github/actions/install-ninja
+        node-version: 20.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
-      working-directory: javascript

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

@@ -1,18 +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: Install Node
-      uses: actions/setup-node@v1
-      with:
-        node-version: 12.x
-
-    # 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
-      working-directory: website

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

@@ -3,7 +3,7 @@ name: Publish Android Release
 on:
   push:
     tags:
-      - *
+      - '*'
   workflow_dispatch:
 
 jobs:
@@ -20,21 +20,19 @@ jobs:
       - name: Publish to Maven Local
         run: ./gradlew publishToMavenLocal
         env:
-          ORG_GRADLE_PROJECT_USE_SNAPSHOT: true
           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
+        uses: actions/upload-artifact@v4
         with:
           name: 'snapshot-artifacts'
           path: '~/.m2/repository/'
 
-      - name: Publish to the Snapshot Repository
-        run: ./gradlew publishToSonatype
+      - 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 }}
-          ORG_GRADLE_PROJECT_USE_SNAPSHOT: true

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

@@ -23,7 +23,7 @@ jobs:
           ORG_GRADLE_PROJECT_USE_SNAPSHOT: true
 
       - name: Upload Build Artifacts
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           name: 'snapshot-artifacts'
           path: '~/.m2/repository/'

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

@@ -3,13 +3,13 @@ name: Publish CocoaPods Release
 on:
   push:
     tags:
-      - *
+      - '*'
   workflow_dispatch:
 
 jobs:
   publish:
     name: Publish to CocoaPods trunk
-    runs-on: ubuntu-latest
+    runs-on: macos-13
 
     steps:
       - uses: actions/checkout@v3
@@ -21,8 +21,3 @@ jobs:
         run: pod trunk push Yoga.podspec
         env:
           COCOAPODS_TRUNK_TOKEN: ${{ secrets.COCOAPODS_TRUNK_TOKEN }}
-
-      - name: Publish YogaKit
-        run: pod trunk push YogaKit.podspec
-        env:
-          COCOAPODS_TRUNK_TOKEN: ${{ secrets.COCOAPODS_TRUNK_TOKEN }}

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

@@ -3,7 +3,7 @@ name: Publish NPM Release
 on:
   push:
     tags:
-      - *
+      - '*'
   workflow_dispatch:
 
 jobs:
@@ -17,8 +17,9 @@ jobs:
       - 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
-         env:
-          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/publish-website.yml

@@ -1,32 +0,0 @@
-name: Website
-
-on:
-  push:
-    branches:
-      - main
-  workflow_dispatch:
-
-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.com
-          keep_files: true
-          user_name: 'Yoga-bot'
-          user_email: 'yogabot@fb.com'

.github/workflows/validate-android.yml

@@ -1,10 +1,11 @@
-name: Android
+name: Validate Android
 
 on:
   pull_request:
   push:
     branches:
       - main
+      - 'release-*'
   workflow_dispatch:
 
 jobs:

.github/workflows/validate-apple.yml

@@ -1,16 +1,17 @@
-name: Apple
+name: Validate Apple
 
 on:
   pull_request:
   push:
     branches:
       - main
+      - 'release-*'
   workflow_dispatch:
 
 jobs:
   lint-pods:
-    name: Lint pod
-    runs-on: macos-latest
+    name: Build [CocoaPods]
+    runs-on: macos-13
 
     steps:
       - uses: actions/checkout@v3
@@ -21,12 +22,9 @@ jobs:
       - name: pod lib lint
         run: pod lib lint --verbose --include-podspecs=**/*.podspec
 
-  build-sample:
-    name: Build sample [${{ matrix.mode }}]
-    runs-on: macos-latest
-    strategy:
-      matrix:
-        mode: [Debug, Release]
+  test:
+    name: Build [SwiftPM]
+    runs-on: macos-13
 
     steps:
       - uses: actions/checkout@v3
@@ -34,22 +32,8 @@ jobs:
       - name: Setup
         uses: ./.github/actions/setup-apple
 
-      - name: pod install
-        run: pod install
-        working-directory: ./YogaKit/YogaKitSample
+      - name: Build Debug
+        run: swift build -c debug
 
-      - name: xcodebuild YogaKitSample.xcworkspace
-        run: xcodebuild -workspace YogaKitSample.xcworkspace -scheme YogaKitSample
-        working-directory: ./YogaKit/YogaKitSample
-
-  clang-format:
-    name: Format
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: clang-format
-        uses: ./.github/actions/clang-format
-        with:
-          directory: ./YogaKit
+      - name: Build Release
+        run: swift build -c release

.github/workflows/validate-cpp.yml

@@ -1,10 +1,11 @@
-name: C++
+name: Validate C++
 
 on:
   pull_request:
   push:
     branches:
       - main
+      - 'release-*'
   workflow_dispatch:
 
 env:
@@ -12,53 +13,87 @@ env:
 
 jobs:
   test:
-    name: Build and Test [${{ matrix.os }}][${{ matrix.mode }}]
-    runs-on: ${{ matrix.os }}
+    name: Build and Test [${{ matrix.toolchain }}][${{ matrix.mode }}]
+    runs-on: ${{ (matrix.toolchain == 'MSVC') && 'windows-latest' || 'ubuntu-latest'  }}
     strategy:
       matrix:
         mode: [Debug, Release]
-        os: [ubuntu-latest] # TODO: fix issues building GTest Binary with MSVC in GitHub Actions
+        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 }}
 
-  benchmark:
-    name: Benchmark [${{ matrix.os }}]
-    runs-on: ${{ matrix.os }}
+
+  build_fuzzers:
+    name: Build fuzzers [${{ matrix.toolchain }}][${{ matrix.mode }}]
+    runs-on: ubuntu-latest
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest]
+        mode: [Debug, Release]
+        toolchain: [Clang]
 
     steps:
       - uses: actions/checkout@v3
 
       - name: Setup
         uses: ./.github/actions/setup-cpp
+        with:
+          toolchain: ${{ matrix.toolchain }}
 
-      - name: Build benchmark
-        run: |
-          cmake -S . -B build -G Ninja -D CMAKE_BUILD_TYPE=Release
-          cmake --build build
-        working-directory: benchmark
+      - name: Unit tests
+        run: ./build_fuzz_tests ${{ matrix.mode }}
 
-      - name: Run benchmark
-        run: ./build/benchmark
-        working-directory: benchmark
-
-  clang-format:
-    name: Format
-    runs-on: ubuntu-latest
+  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: clang-format
-        uses: ./.github/actions/clang-format
+      - name: Setup
+        uses: ./.github/actions/setup-cpp
         with:
-          directory: ./yoga
+          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

.github/workflows/validate-js.yml

@@ -1,10 +1,11 @@
-name: JavaScript
+name: Validate JavaScript
 
 on:
   pull_request:
   push:
     branches:
       - main
+      - 'release-*'
   workflow_dispatch:
 
 env:
@@ -23,6 +24,9 @@ jobs:
       - name: Setup
         uses: ./.github/actions/setup-js
 
+      - name: Restore emsdk
+        uses: ./.github/actions/cache-emsdk
+
       - name: yarn benchmark
         run: yarn benchmark
         working-directory: javascript
@@ -39,8 +43,11 @@ jobs:
       - name: Setup
         uses: ./.github/actions/setup-js
 
+      - name: Restore emsdk
+        uses: ./.github/actions/cache-emsdk
+
       - name: yarn build
-        run: yarn build
+        run: yarn build --verbose
         working-directory: javascript
 
   test:
@@ -55,22 +62,36 @@ jobs:
       - 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: Lint
+    name: ESLint (All Packages)
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
 
-      - name: yarn install
-        run: yarn install --frozen-lockfile
-        working-directory: javascript
+      - 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:
@@ -82,11 +103,14 @@ jobs:
       - 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
+      - uses: actions/upload-artifact@v4
         with:
           name: npm-package
           path: javascript/yoga-layout.tar.gz

.github/workflows/validate-python.yml

@@ -1,21 +0,0 @@
-name: Python
-
-on:
-  pull_request:
-  push:
-    branches:
-      - main
-  workflow_dispatch:
-
-jobs:
-  format:
-    name: Format
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: black --check
-        uses: ./.github/actions/black
-        with:
-          directory: ${{ github.workspace }}

.github/workflows/validate-tests.yml

@@ -0,0 +1,32 @@
+name: Validate Tests
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+  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

@@ -1,23 +1,42 @@
-name: Website
+name: Validate Website
 
 on:
   pull_request:
+    branches:
+      - main
   push:
     branches:
       - main
   workflow_dispatch:
 
 jobs:
-  build:
+  build_next:
     name: Build
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v3
 
       - name: Setup
-        uses: ./.github/actions/setup-website
+        uses: ./.github/actions/setup-js
 
-      - name: yarn build
+      - name: Restore emsdk
+        uses: ./.github/actions/cache-emsdk
+
+      - name: Build Website
         run: yarn build
         working-directory: website
+
+  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

.gitignore

@@ -6,6 +6,7 @@
 /.buckd
 /gentest/test.html
 .buck-java11
+node_modules
 
 # Jekyll
 /.sass-cache/
@@ -72,3 +73,6 @@ local.properties
 
 # Docusarus build
 .docusaurus
+
+# Android Studio
+.idea

.prettierignore

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

CMakeLists.txt

@@ -12,6 +12,12 @@ include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/project-defaults.cmake)
 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)

Package.swift

@@ -0,0 +1,32 @@
+// 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

@@ -1,10 +1,10 @@
-# 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/YogaKit.svg)](http://cocoapods.org/pods/YogaKit) [![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 [![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) ![SPM](https://img.shields.io/badge/SPM-Supported-blue.svg)
 
 Yoga is an embeddable and performant flexbox layout engine with bindings for multiple languages.
 
-
 ## Building
-Yoga's main implementation targets C++ 14 with accompanying build logic in CMake. A wrapper is provided to build the main library and run unit tests.
+
+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.
 
 ```sh
 ./unit_tests <Debug|Release>
@@ -14,8 +14,6 @@ While not required, this script will use [ninja](https://ninja-build.org/) if it
 
 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`.
@@ -27,9 +25,10 @@ Many of Yoga's tests are automatically generated, using HTML fixtures describing
 ```
 
 To generate new tests from added fixtures:
-1. Run `bundle install` in the `gentest` directory to install dependencies of the test generator.
-2. Run `ruby gentest.rb` in the `gentest` directory.
 
+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.
 
 ## Debugging
 

Yoga.podspec

@@ -6,10 +6,10 @@
 
 Pod::Spec.new do |spec|
   spec.name = 'Yoga'
-  spec.version = '2.0.0'
+  spec.version = '0.0.0'
   spec.license =  { :type => 'MIT', :file => "LICENSE" }
-  spec.homepage = 'https://yogalayout.com/'
-  spec.documentation_url = 'https://yogalayout.com/docs'
+  spec.homepage = 'https://yogalayout.dev/'
+  spec.documentation_url = 'https://yogalayout.dev/docs'
 
   spec.summary = 'An embeddable and performant flexbox layout engine with bindings for multiple languages'
 
@@ -24,18 +24,27 @@ Pod::Spec.new do |spec|
   spec.module_name = 'yoga'
   spec.requires_arc = false
   spec.pod_target_xcconfig = {
-    'DEFINES_MODULE' => 'YES'
+    'DEFINES_MODULE' => 'YES',
+    'HEADER_SEARCH_PATHS' => '"$(PODS_TARGET_SRCROOT)"',
   }
+
   spec.compiler_flags = [
       '-fno-omit-frame-pointer',
       '-fexceptions',
       '-Wall',
       '-Werror',
-      '-Wextra',
-      '-std=c++14',
+      '-std=c++20',
       '-fPIC'
   ]
-  spec.source_files = 'yoga/**/*.{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

YogaKit.podspec

@@ -1,34 +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.
-
-podspec = Pod::Spec.new do |spec|
-  spec.name = 'YogaKit'
-  spec.version = '2.0.0'
-  spec.license =  { :type => 'MIT', :file => "LICENSE" }
-  spec.homepage = 'https://yogalayout.com/'
-  spec.documentation_url = 'https://yogalayout.com/docs'
-  spec.deprecated = true
-
-  spec.summary = 'YogaKit allows using the Yoga layout engine in combination with UIKit'
-
-  spec.authors = {'Meta Open Source' => 'opensource@meta.com'}
-  spec.source = {
-    :git => 'https://github.com/facebook/yoga.git',
-    :tag => "v#{spec.version.to_s}",
-  }
-
-  spec.platforms = { :ios => "13.4" }
-  spec.ios.frameworks = 'UIKit'
-  spec.module_name = 'YogaKit'
-  spec.dependency 'Yoga', "~> #{spec.version.to_s}"
-  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 = '5.1'
-end
-
-# See https://github.com/facebook/yoga/pull/366
-podspec.attributes_hash["readme"] = "YogaKit/README.md"
-podspec

YogaKit/README.md

@@ -1,21 +0,0 @@
-# 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
-
-We have a sample project. To try it out, clone this repo and open `YogaKitSample.xcodeproj` in the [YogaKitSample](https://github.com/facebook/yoga/tree/main/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/main/CONTRIBUTING.md) file for how to help out.

YogaKit/Source/UIView+Yoga.h

@@ -1,37 +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.
- */
-
-#import <UIKit/UIKit.h>
-#import "YGLayout.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

@@ -1,37 +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.
- */
-
-#import <objc/runtime.h>
-#import "UIView+Yoga.h"
-#import "YGLayout+Private.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

@@ -1,17 +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.
- */
-
-#import <yoga/Yoga.h>
-#import "YGLayout.h"
-
-@interface YGLayout ()
-
-@property(nonatomic, assign, readonly) YGNodeRef node;
-
-- (instancetype)initWithView:(UIView*)view;
-
-@end

YogaKit/Source/YGLayout.h

@@ -1,174 +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.
- */
-
-#import <UIKit/UIKit.h>
-#import <yoga/YGEnums.h>
-#import <yoga/YGMacros.h>
-#import <yoga/Yoga.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

@@ -1,511 +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.
- */
-
-#import "UIView+Yoga.h"
-#import "YGLayout+Private.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);
-  YGConfigSetErrata(globalConfig, YGErrataClassic);
-  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)
-
-YG_EDGE_PROPERTY(columnGap, ColumnGap, Gap, YGGutterColumn)
-YG_EDGE_PROPERTY(rowGap, RowGap, Gap, YGGutterRow)
-YG_EDGE_PROPERTY(gap, Gap, Gap, YGGutterAll)
-
-#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

@@ -1,45 +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.
- */
-
-import yoga;
-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

@@ -1,22 +0,0 @@
-<?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

@@ -1,753 +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.
- */
-
-#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 {
-  // https://www.internalfb.com/intern/test/562950017690956
-  XCTSkip(
-      @"TODO: this test fails with actual dimensions off by 1px from expected");
-
-  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

@@ -1,17 +0,0 @@
-use_frameworks!
-
-platform :ios, "13.4"
-
-target 'YogaKitSample' do
-  pod 'YogaKit', :path => '../../YogaKit.podspec'
-  pod 'Yoga', :path => '../../Yoga.podspec'
-  pod 'IGListKit', '~> 4.0.0'
-end
-
-post_install do |installer|
-  installer.pods_project.targets.each do |target|
-    target.build_configurations.each do |config|
-      config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '13.4'
-    end
-  end
-end

YogaKit/YogaKitSample/Podfile.lock

@@ -1,33 +0,0 @@
-PODS:
-  - IGListDiffKit (4.0.0)
-  - IGListKit (4.0.0):
-    - IGListDiffKit (= 4.0.0)
-  - Yoga (2.0.0-beta.1)
-  - YogaKit (2.0.0-beta.1):
-    - Yoga (~> 2.0.0-beta.1)
-
-DEPENDENCIES:
-  - IGListKit (~> 4.0.0)
-  - Yoga (from `../../Yoga.podspec`)
-  - YogaKit (from `../../YogaKit.podspec`)
-
-SPEC REPOS:
-  trunk:
-    - IGListDiffKit
-    - IGListKit
-
-EXTERNAL SOURCES:
-  Yoga:
-    :path: "../../Yoga.podspec"
-  YogaKit:
-    :path: "../../YogaKit.podspec"
-
-SPEC CHECKSUMS:
-  IGListDiffKit: 665d6cf43ce726e676013db9c7d6c4294259b6b2
-  IGListKit: fd5a5d21935298f5849fa49d426843cff97b77c7
-  Yoga: 090c6851e548d085d6211b5466b57ba8f4013a90
-  YogaKit: 5ae1939cd7516fdf6c343abb4b4aa381c9911ccf
-
-PODFILE CHECKSUM: e5d9841ef739884db00a29f2d529d16bf247a4ca
-
-COCOAPODS: 1.12.1

YogaKit/YogaKitSample/YogaKitSample.xcodeproj/project.pbxproj

@@ -1,518 +0,0 @@
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YogaKit/YogaKitSample/YogaKitSample.xcodeproj/project.xcworkspace/contents.xcworkspacedata

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

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YogaKit/YogaKitSample/YogaKitSample/AppDelegate.swift

@@ -1,26 +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.
- */
-
-import Foundation
-import UIKit
-
-@UIApplicationMain
-class AppDelegate: UIResponder, UIApplicationDelegate {
-    var window: UIWindow?
-
-    func applicationDidFinishLaunching(_ application: UIApplication) {
-        self.window = UIWindow(frame: UIScreen.main.bounds)
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-            navigationController.navigationBar.isTranslucent = false
-
-            window.rootViewController = navigationController
-            window.backgroundColor = .white
-            window.makeKeyAndVisible()
-        }
-    }
-}

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

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-  "info" : {
-    "version" : 1,
-    "author" : "xcode"
-  }
-}

YogaKit/YogaKitSample/YogaKitSample/ExamplesViewController.swift

@@ -1,102 +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.
- */
-
-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: ListDiffable {
-    fileprivate func diffIdentifier() -> NSObjectProtocol {
-        return title as NSString
-    }
-
-    fileprivate func isEqual(toDiffableObject object: ListDiffable?) -> Bool {
-        guard let otherObj = object as? ExampleModel else { return false }
-
-        return (title == otherObj.title) &&
-               (controllerClass == otherObj.controllerClass)
-    }
-}
-
-final class ExamplesViewController: UIViewController, ListAdapterDataSource, ListSingleSectionControllerDelegate {
-
-    private lazy var adapter: ListAdapter = {
-        return ListAdapter(updater: ListAdapterUpdater(), viewController: self, workingRangeSize: 0)
-    }()
-    private lazy var collectionView: UICollectionView = {
-        let collectionView = UICollectionView(frame: .zero, collectionViewLayout: UICollectionViewFlowLayout())
-        collectionView.backgroundColor = UIColor.systemBackground
-        return collectionView
-    }()
-
-    // 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: ListAdapter) -> [ListDiffable] {
-        return models as [ListDiffable]
-    }
-
-    func listAdapter(_ listAdapter: ListAdapter, sectionControllerFor object: Any) -> ListSectionController {
-        let sizeBlock: ListSingleSectionCellSizeBlock = { (model, context) in
-            return CGSize(width: (context?.containerSize.width)!, height: 75.0)
-        }
-
-        let configureBlock: ListSingleSectionCellConfigureBlock = { (model, cell) in
-            guard let m = model as? ExampleModel, let c = cell as? SingleLabelCollectionCell else {
-                return
-            }
-
-            c.label.text = m.title
-        }
-
-        let sectionController = ListSingleSectionController(cellClass: SingleLabelCollectionCell.self,
-                                                              configureBlock: configureBlock,
-                                                              sizeBlock: sizeBlock)
-        sectionController.selectionDelegate = self
-        return sectionController
-    }
-
-    func emptyView(for listAdapter: ListAdapter) -> UIView? { return nil }
-
-    //MARK: IGListSingleSectionControllerDelegate
-    func didSelect(_ sectionController: ListSingleSectionController, with object: Any) {
-        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

@@ -1,36 +0,0 @@
-<?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

@@ -1,70 +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.
- */
-
-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

@@ -1,51 +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.
- */
-
-#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

@@ -1,58 +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.
- */
-
-import UIKit
-import YogaKit
-
-final class BasicViewController: UIViewController {
-    override func viewDidLoad() {
-        super.viewDidLoad()
-        let containerSize = self.view.bounds.size
-
-        view.backgroundColor = UIColor.systemBackground
-        view.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
-        }
-        view.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
-            layout.width = 200
-            layout.height = 200
-        }
-        view.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
-            layout.width = 100
-            layout.height = 100
-
-        }
-        view.addSubview(child3)
-
-        view.yoga.applyLayout(preservingOrigin: true)
-    }
-}

YogaKit/YogaKitSample/YogaKitSample/ViewControllers/LayoutInclusionViewController.swift

@@ -1,80 +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.
- */
-
-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() {
-        super.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: .selected)
-        button.setTitle("Remove Blue View", for: .normal)
-        button.addTarget(self, action: #selector(buttonWasTapped), for: .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
-    @objc 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

@@ -1,48 +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.
- */
-
-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/README.md

@@ -1,21 +0,0 @@
-# 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:
-
-    implementation 'com.facebook.yoga.android:yoga-layout:1.16.0'
-
-## Getting Started
-
-Check out the docs [here](https://yogalayout.com/getting-started/standalone/).
-
-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

@@ -1,41 +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.
- */
-
-plugins {
-    id("com.android.library")
-    id("publish")
-}
-
-android {
-    namespace 'com.facebook.yoga.android'
-
-    compileSdkVersion rootProject.compileSdkVersion
-    buildToolsVersion rootProject.buildToolsVersion
-    ndkVersion rootProject.ndkVersion
-
-    defaultConfig {
-        minSdkVersion rootProject.minSdkVersion
-        targetSdkVersion rootProject.targetSdkVersion
-    }
-
-    compileOptions {
-        targetCompatibility rootProject.targetCompatibilityVersion
-        sourceCompatibility rootProject.sourceCompatibilityVersion
-    }
-
-    publishing {
-        multipleVariants {
-            withSourcesJar()
-            withJavadocJar()
-            includeBuildTypeValues('debug', 'release')
-        }
-    }
-}
-
-dependencies {
-    api project(':yoga')
-}

android/src/main/AndroidManifest.xml

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<!--
-  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.
--->
-
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
-
-  <application/>
-
-</manifest>

android/src/main/java/com/facebook/yoga/android/VirtualYogaLayout.java

@@ -1,149 +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.
- */
-
-package com.facebook.yoga.android;
-
-import java.util.HashMap;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-
-import android.content.Context;
-import android.util.AttributeSet;
-import android.view.View;
-import android.view.ViewGroup;
-
-import com.facebook.yoga.YogaNode;
-import com.facebook.yoga.YogaNodeFactory;
-
-/**
- * Much like a {@link YogaLayout}, except this class does not render itself (the container) to the
- * screen.  As a result, <i>do not use this if you wish the container to have a background or
- * foreground</i>.  However, all of its children will still render as expected.
- *
- * <p>
- * In practice, this class never added to the View tree, and all its children become children of its
- * parent.  As a result, all the layout (such as the traversal of the tree) is performed by Yoga
- * (and so natively) increasing performance.
- */
-public class VirtualYogaLayout extends ViewGroup {
-
-  final private List<View> mChildren = new LinkedList<>();
-  final private Map<View, YogaNode> mYogaNodes = new HashMap<>();
-  final private YogaNode mYogaNode = YogaNodeFactory.create();
-
-  public VirtualYogaLayout(Context context) {
-    super(context);
-  }
-
-  public VirtualYogaLayout(Context context, AttributeSet attrs) {
-    this(context, attrs, 0);
-  }
-
-  public VirtualYogaLayout(Context context, AttributeSet attrs, int defStyleAttr) {
-    super(context, attrs, defStyleAttr);
-    YogaLayout.LayoutParams lp = new YogaLayout.LayoutParams(context, attrs);
-    YogaLayout.applyLayoutParams(lp, mYogaNode, this);
-  }
-
-  public YogaNode getYogaNode() {
-    return mYogaNode;
-  }
-
-  /**
-   * Called to add a view, creating a new yoga node for it and adding that yoga node to the parent.
-   * If the child is a {@link VirtualYogaLayout}, we simply transfer all its children to this one
-   * in a manner that maintains the tree, and add its root to the tree.
-   *
-   * @param child the View to add
-   * @param index the position at which to add it (ignored)
-   * @param params the layout parameters to apply
-   */
-  @Override
-  public void addView(View child, int index, ViewGroup.LayoutParams params) {
-    if (child instanceof VirtualYogaLayout) {
-      ((VirtualYogaLayout) child).transferChildren(this);
-
-      final YogaNode childNode = ((VirtualYogaLayout) child).getYogaNode();
-      mYogaNode.addChildAt(childNode, mYogaNode.getChildCount());
-
-      return;
-    }
-
-    YogaNode node = YogaNodeFactory.create();
-    YogaLayout.LayoutParams lp = new YogaLayout.LayoutParams(params);
-    YogaLayout.applyLayoutParams(lp, node, child);
-    node.setData(child);
-    node.setMeasureFunction(new YogaLayout.ViewMeasureFunction());
-
-    mYogaNode.addChildAt(node, mYogaNode.getChildCount());
-
-    addView(child, node);
-  }
-
-  /**
-   * Called to add a view with a corresponding node, but not to change the Yoga tree in any way.
-   *
-   * @param child the View to add
-   * @param node the corresponding yoga node
-   */
-  public void addView(View child, YogaNode node) {
-    mChildren.add(child);
-    mYogaNodes.put(child, node);
-  }
-
-  /**
-   * Gives up children {@code View}s to the parent, maintaining the Yoga tree.  This function calls
-   * {@link YogaLayout#addView(View, YogaNode)} or {@link VirtualYogaLayout#addView(View, YogaNode)}
-   * on the parent to add the {@code View} without generating new yoga nodes.
-   *
-   * @param parent the parent to pass children to (must be a YogaLayout or a VirtualYogaLayout)
-   */
-  protected void transferChildren(ViewGroup parent) {
-    if (parent instanceof VirtualYogaLayout) {
-      for (View child : mChildren) {
-        ((VirtualYogaLayout) parent).addView(child, mYogaNodes.get(child));
-      }
-    } else if (parent instanceof YogaLayout) {
-      for (View child : mChildren) {
-        ((YogaLayout) parent).addView(child, mYogaNodes.get(child));
-      }
-    } else {
-      throw new RuntimeException("VirtualYogaLayout cannot transfer children to ViewGroup of type "
-          +parent.getClass().getCanonicalName()+".  Must either be a VirtualYogaLayout or a " +
-          "YogaLayout.");
-    }
-    mChildren.clear();
-  }
-
-  @Override
-  protected void onLayout(boolean changed, int l, int t, int r, int b) {
-    throw new RuntimeException("Attempting to layout a VirtualYogaLayout");
-  }
-
-  @Override
-  public ViewGroup.LayoutParams generateLayoutParams(AttributeSet attrs) {
-    return new YogaLayout.LayoutParams(getContext(), attrs);
-  }
-
-  @Override
-  protected ViewGroup.LayoutParams generateDefaultLayoutParams() {
-    return new YogaLayout.LayoutParams(
-        ViewGroup.LayoutParams.MATCH_PARENT,
-        ViewGroup.LayoutParams.MATCH_PARENT);
-  }
-
-  @Override
-  protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) {
-    return new YogaLayout.LayoutParams(p);
-  }
-
-  @Override
-  protected boolean checkLayoutParams(ViewGroup.LayoutParams p) {
-    return p instanceof YogaLayout.LayoutParams;
-  }
-}

android/src/main/java/com/facebook/yoga/android/YogaLayout.java

@@ -1,816 +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.
- */
-
-package com.facebook.yoga.android;
-
-import android.content.Context;
-import android.content.res.Configuration;
-import android.content.res.TypedArray;
-import android.graphics.Rect;
-import android.graphics.drawable.Drawable;
-import android.os.Build;
-import android.util.AttributeSet;
-import android.util.SparseArray;
-import android.util.TypedValue;
-import android.view.View;
-import android.view.ViewGroup;
-import com.facebook.yoga.YogaAlign;
-import com.facebook.yoga.YogaConstants;
-import com.facebook.yoga.YogaDirection;
-import com.facebook.yoga.YogaDisplay;
-import com.facebook.yoga.YogaEdge;
-import com.facebook.yoga.YogaFlexDirection;
-import com.facebook.yoga.YogaJustify;
-import com.facebook.yoga.YogaMeasureFunction;
-import com.facebook.yoga.YogaMeasureMode;
-import com.facebook.yoga.YogaMeasureOutput;
-import com.facebook.yoga.YogaNode;
-import com.facebook.yoga.YogaNodeFactory;
-import com.facebook.yoga.YogaOverflow;
-import com.facebook.yoga.YogaPositionType;
-import com.facebook.yoga.YogaWrap;
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * A {@code ViewGroup} based on the Yoga layout engine.
- *
- * <p>
- * This class is designed to be as "plug and play" as possible.  That is, you can use it in XML
- * like this (note: to use {@code YogaLayout} you need to use the {@link YogaViewLayoutFactory}):
- * <p>
- * <pre>{@code
- * <YogaLayout
- *     xmlns:android="http://schemas.android.com/apk/res/android"
- *     xmlns:yoga="http://schemas.android.com/apk/com.facebook.yoga.android"
- *     android:layout_width="match_owner"
- *     android:layout_height="match_owner"
- *     yoga:flex_direction="row"
- *     yoga:padding_all="10dp"
- *     >
- *     <TextView
- *         android:layout_width="match_owner"
- *         android:layout_height="match_owner"
- *         android:text="Hello, World!"
- *         yoga:flex="1"
- *         />
- * </YogaLayout>
- * }</pre>
- *
- * Under the hood, all views added to this {@code ViewGroup} are laid out using flexbox rules
- * and the Yoga engine.
- */
-public class YogaLayout extends ViewGroup {
-  private final Map<View, YogaNode> mYogaNodes;
-  private final YogaNode mYogaNode;
-
-  public YogaLayout(Context context) {
-    this(context, null, 0);
-  }
-
-  public YogaLayout(Context context, AttributeSet attrs) {
-    this(context, attrs, 0);
-  }
-
-  public YogaLayout(Context context, AttributeSet attrs, int defStyleAttr) {
-    super(context, attrs, defStyleAttr);
-
-    mYogaNode = YogaNodeFactory.create();
-    mYogaNodes = new HashMap<>();
-
-    mYogaNode.setData(this);
-    mYogaNode.setMeasureFunction(new ViewMeasureFunction());
-
-    LayoutParams layoutParams = null;
-    if (attrs != null) {
-      layoutParams = new LayoutParams(context, attrs);
-    } else {
-      layoutParams = (LayoutParams) generateDefaultLayoutParams();
-    }
-    applyLayoutParams(layoutParams, mYogaNode, this);
-  }
-
-  public YogaNode getYogaNode() {
-    return mYogaNode;
-  }
-
-  public YogaNode getYogaNodeForView(View view) {
-    return mYogaNodes.get(view);
-  }
-
-  /**
-   * Adds a child view with the specified layout parameters.
-   *
-   * In the typical View is added, this constructs a {@code YogaNode} for this child and applies all
-   * the {@code yoga:*} attributes.  The Yoga node is added to the Yoga tree and the child is added
-   * to this ViewGroup.
-   *
-   * If the child is a {@link YogaLayout} itself, we do not construct a new Yoga node for that
-   * child, but use its root node instead.
-   *
-   * If the child is a {@link VirtualYogaLayout}, we also use its Yoga node, but we also instruct it
-   * to transfer all of its children to this {@link YogaLayout} while preserving the Yoga tree (so
-   * that the layout of its children is correct).  The {@link VirtualYogaLayout} is then not added
-   * to the View hierarchy.
-   *
-   * <p><strong>Note:</strong> do not invoke this method from
-   * {@code #draw(android.graphics.Canvas)}, {@code onDraw(android.graphics.Canvas)},
-   * {@code #dispatchDraw(android.graphics.Canvas)} or any related method.</p>
-   *
-   * @param child the child view to add
-   * @param index the position at which to add the child or -1 to add last
-   * @param params the layout parameters to set on the child
-   */
-  @Override
-  public void addView(View child, int index, ViewGroup.LayoutParams params) {
-    // Internal nodes (which this is now) cannot have measure functions
-    mYogaNode.setMeasureFunction(null);
-
-    if (child instanceof VirtualYogaLayout) {
-      ((VirtualYogaLayout) child).transferChildren(this);
-      final YogaNode childNode = ((VirtualYogaLayout) child).getYogaNode();
-
-      mYogaNode.addChildAt(childNode, mYogaNode.getChildCount());
-
-      return;
-    }
-
-    super.addView(child, index, params);
-
-    // It is possible that addView is being called as part of a transferal of children, in which
-    // case we already know about the YogaNode and only need the Android View tree to be aware
-    // that we now own this child.  If so, we don't need to do anything further
-    if (mYogaNodes.containsKey(child)) {
-      return;
-    }
-
-    YogaNode childNode;
-
-    if (child instanceof YogaLayout) {
-      childNode = ((YogaLayout) child).getYogaNode();
-    } else {
-      if(mYogaNodes.containsKey(child)) {
-        childNode = mYogaNodes.get(child);
-      } else {
-        childNode = YogaNodeFactory.create();
-      }
-
-      childNode.setData(child);
-      childNode.setMeasureFunction(new ViewMeasureFunction());
-    }
-
-    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
-    applyLayoutParams(lp, childNode, child);
-
-    mYogaNodes.put(child, childNode);
-    mYogaNode.addChildAt(childNode, mYogaNode.getChildCount());
-  }
-
-  /**
-   * Adds a view to this {@code ViewGroup} with an already given {@code YogaNode}.  Use
-   * this function if you already have a Yoga node (and perhaps tree) associated with the view you
-   * are adding, that you would like to preserve.
-   *
-   * @param child The view to add
-   * @param node The Yoga node belonging to the view
-   */
-  public void addView(View child, YogaNode node) {
-    mYogaNodes.put(child, node);
-    addView(child);
-  }
-
-  @Override
-  public void removeView(View view) {
-    removeViewFromYogaTree(view, false);
-    super.removeView(view);
-  }
-
-  @Override
-  public void removeViewAt(int index) {
-    removeViewFromYogaTree(getChildAt(index), false);
-    super.removeViewAt(index);
-  }
-
-  @Override
-  public void removeViewInLayout(View view) {
-    removeViewFromYogaTree(view, true);
-    super.removeViewInLayout(view);
-  }
-
-  @Override
-  public void removeViews(int start, int count) {
-    for (int i = start; i < start + count; i++) {
-      removeViewFromYogaTree(getChildAt(i), false);
-    }
-    super.removeViews(start, count);
-  }
-
-  @Override
-  public void removeViewsInLayout(int start, int count) {
-    for (int i = start; i < start + count; i++) {
-      removeViewFromYogaTree(getChildAt(i), true);
-    }
-    super.removeViewsInLayout(start, count);
-  }
-
-  @Override
-  public void removeAllViews() {
-    final int childCount = getChildCount();
-    for (int i = 0; i < childCount; i++) {
-      removeViewFromYogaTree(getChildAt(i), false);
-    }
-    super.removeAllViews();
-  }
-
-  @Override
-  public void removeAllViewsInLayout() {
-    final int childCount = getChildCount();
-    for (int i = 0; i < childCount; i++) {
-      removeViewFromYogaTree(getChildAt(i), true);
-    }
-    super.removeAllViewsInLayout();
-  }
-
-  /**
-   * Marks a particular view as "dirty" and to be relaid out.  If the view is not a child of this
-   * {@link YogaLayout}, the entire tree is traversed to find it.
-   *
-   * @param view the view to mark as dirty
-   */
-  public void invalidate(View view) {
-    if (mYogaNodes.containsKey(view)) {
-      mYogaNodes.get(view).dirty();
-      return;
-    }
-
-    final int childCount = mYogaNode.getChildCount();
-    for (int i = 0; i < childCount; i++) {
-      final YogaNode yogaNode = mYogaNode.getChildAt(i);
-      if (yogaNode.getData() instanceof YogaLayout) {
-        ((YogaLayout) yogaNode.getData()).invalidate(view);
-      }
-    }
-    invalidate();
-  }
-
-  private void removeViewFromYogaTree(View view, boolean inLayout) {
-    final YogaNode node = mYogaNodes.get(view);
-    if (node == null) {
-      return;
-    }
-
-    final YogaNode owner = node.getOwner();
-
-    for (int i = 0; i < owner.getChildCount(); i++) {
-      if (owner.getChildAt(i).equals(node)) {
-        owner.removeChildAt(i);
-        break;
-      }
-    }
-
-    node.setData(null);
-    mYogaNodes.remove(view);
-
-    if (inLayout) {
-      mYogaNode.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
-    }
-  }
-
-  private void applyLayoutRecursive(YogaNode node, float xOffset, float yOffset) {
-    View view = (View) node.getData();
-
-    if (view != null && view != this) {
-      if (view.getVisibility() == GONE) {
-        return;
-      }
-      int left = Math.round(xOffset + node.getLayoutX());
-      int top = Math.round(yOffset + node.getLayoutY());
-      view.measure(
-          View.MeasureSpec.makeMeasureSpec(
-              Math.round(node.getLayoutWidth()),
-              View.MeasureSpec.EXACTLY),
-          View.MeasureSpec.makeMeasureSpec(
-              Math.round(node.getLayoutHeight()),
-              View.MeasureSpec.EXACTLY));
-      view.layout(left, top, left + view.getMeasuredWidth(), top + view.getMeasuredHeight());
-    }
-
-    final int childrenCount = node.getChildCount();
-    for (int i = 0; i < childrenCount; i++) {
-      if (this.equals(view)) {
-        applyLayoutRecursive(node.getChildAt(i), xOffset, yOffset);
-      } else if (view instanceof YogaLayout) {
-        continue;
-      } else {
-        applyLayoutRecursive(
-            node.getChildAt(i),
-            xOffset + node.getLayoutX(),
-            yOffset + node.getLayoutY());
-      }
-    }
-  }
-
-  @Override
-  protected void onLayout(boolean changed, int l, int t, int r, int b) {
-    // Either we are a root of a tree, or this function is called by our owner's onLayout, in which
-    // case our r-l and b-t are the size of our node.
-    if (!(getParent() instanceof YogaLayout)) {
-        createLayout(
-            MeasureSpec.makeMeasureSpec(r - l, MeasureSpec.EXACTLY),
-            MeasureSpec.makeMeasureSpec(b - t, MeasureSpec.EXACTLY));
-    }
-
-    applyLayoutRecursive(mYogaNode, 0, 0);
-  }
-
-  /**
-   * This function is mostly unneeded, because Yoga is doing the measuring.  Hence we only need to
-   * return accurate results if we are the root.
-   *
-   * @param widthMeasureSpec the suggested specification for the width
-   * @param heightMeasureSpec the suggested specification for the height
-   */
-  @Override
-  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
-    if (!(getParent() instanceof YogaLayout)) {
-      createLayout(widthMeasureSpec, heightMeasureSpec);
-    }
-
-    setMeasuredDimension(
-        Math.round(mYogaNode.getLayoutWidth()),
-        Math.round(mYogaNode.getLayoutHeight()));
-  }
-
-  private void createLayout(int widthMeasureSpec, int heightMeasureSpec) {
-    final int widthSize = MeasureSpec.getSize(widthMeasureSpec);
-    final int heightSize = MeasureSpec.getSize(heightMeasureSpec);
-    final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
-    final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
-
-    if (heightMode == MeasureSpec.EXACTLY) {
-      mYogaNode.setHeight(heightSize);
-    }
-    if (widthMode == MeasureSpec.EXACTLY) {
-      mYogaNode.setWidth(widthSize);
-    }
-    if (heightMode == MeasureSpec.AT_MOST) {
-      mYogaNode.setMaxHeight(heightSize);
-    }
-    if (widthMode == MeasureSpec.AT_MOST) {
-      mYogaNode.setMaxWidth(widthSize);
-    }
-    mYogaNode.calculateLayout(YogaConstants.UNDEFINED, YogaConstants.UNDEFINED);
-  }
-
-  /**
-   * Applies the layout parameters to the YogaNode.  That is, this function is a translator from
-   * {@code yoga:X="Y"} to {@code yogaNode.setX(Y);}, with some reasonable defaults.
-   *
-   * <p>
-   * If the SDK version is high enough, and the {@code yoga:direction} is not set on
-   * the component, the direction (LTR or RTL) is set according to the locale.
-   *
-   * <p>
-   * The attributes {@code padding_top}, {@code padding_right} etc. default to those of the view's
-   * drawable background, if it has one.
-   *
-   * @param layoutParameters The source set of params
-   * @param node The destination node
-   */
-  protected static void applyLayoutParams(LayoutParams layoutParameters, YogaNode node, View view) {
-    // JELLY_BEAN_MR1 (17) is the first version supporting getLayoutDirection()
-    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
-      Configuration configuration = view.getResources().getConfiguration();
-      if (configuration.getLayoutDirection() == LAYOUT_DIRECTION_RTL) {
-        node.setDirection(YogaDirection.RTL);
-      }
-    }
-
-    Drawable background = view.getBackground();
-    if (background != null) {
-      final Rect backgroundPadding = new Rect();
-      if (background.getPadding(backgroundPadding)) {
-        node.setPadding(YogaEdge.LEFT, backgroundPadding.left);
-        node.setPadding(YogaEdge.TOP, backgroundPadding.top);
-        node.setPadding(YogaEdge.RIGHT, backgroundPadding.right);
-        node.setPadding(YogaEdge.BOTTOM, backgroundPadding.bottom);
-      }
-    }
-
-    for (int i = 0; i < layoutParameters.numericAttributes.size(); i++) {
-      final int attribute = layoutParameters.numericAttributes.keyAt(i);
-      final float value = layoutParameters.numericAttributes.valueAt(i);
-
-      if (attribute == R.styleable.yoga_yg_alignContent) {
-        node.setAlignContent(YogaAlign.fromInt(Math.round(value)));
-      } else if (attribute == R.styleable.yoga_yg_alignItems) {
-        node.setAlignItems(YogaAlign.fromInt(Math.round(value)));
-      } else if (attribute == R.styleable.yoga_yg_alignSelf) {
-        node.setAlignSelf(YogaAlign.fromInt(Math.round(value)));
-      } else if (attribute == R.styleable.yoga_yg_aspectRatio) {
-        node.setAspectRatio(value);
-      } else if (attribute == R.styleable.yoga_yg_borderLeft) {
-        node.setBorder(YogaEdge.LEFT, value);
-      } else if (attribute == R.styleable.yoga_yg_borderTop) {
-        node.setBorder(YogaEdge.TOP, value);
-      } else if (attribute == R.styleable.yoga_yg_borderRight) {
-        node.setBorder(YogaEdge.RIGHT, value);
-      } else if (attribute == R.styleable.yoga_yg_borderBottom) {
-        node.setBorder(YogaEdge.BOTTOM, value);
-      } else if (attribute == R.styleable.yoga_yg_borderStart) {
-        node.setBorder(YogaEdge.START, value);
-      } else if (attribute == R.styleable.yoga_yg_borderEnd) {
-        node.setBorder(YogaEdge.END, value);
-      } else if (attribute == R.styleable.yoga_yg_borderHorizontal) {
-        node.setBorder(YogaEdge.HORIZONTAL, value);
-      } else if (attribute == R.styleable.yoga_yg_borderVertical) {
-        node.setBorder(YogaEdge.VERTICAL, value);
-      } else if (attribute == R.styleable.yoga_yg_borderAll) {
-        node.setBorder(YogaEdge.ALL, value);
-      } else if (attribute == R.styleable.yoga_yg_direction) {
-        node.setDirection(YogaDirection.fromInt(Math.round(value)));
-      } else if (attribute == R.styleable.yoga_yg_display) {
-        node.setDisplay(YogaDisplay.fromInt(Math.round(value)));
-      } else if (attribute == R.styleable.yoga_yg_flex) {
-        node.setFlex(value);
-      } else if (attribute == R.styleable.yoga_yg_flexBasis) {
-        node.setFlexBasis(value);
-      } else if (attribute == R.styleable.yoga_yg_flexDirection) {
-        node.setFlexDirection(YogaFlexDirection.fromInt(Math.round(value)));
-      } else if (attribute == R.styleable.yoga_yg_flexGrow) {
-        node.setFlexGrow(value);
-      } else if (attribute == R.styleable.yoga_yg_flexShrink) {
-        node.setFlexShrink(value);
-      } else if (attribute == R.styleable.yoga_yg_height) {
-        node.setHeight(value);
-      } else if (attribute == R.styleable.yoga_yg_marginLeft) {
-        node.setMargin(YogaEdge.LEFT, value);
-      } else if (attribute == R.styleable.yoga_yg_justifyContent) {
-        node.setJustifyContent(YogaJustify.fromInt(Math.round(value)));
-      } else if (attribute == R.styleable.yoga_yg_marginTop) {
-        node.setMargin(YogaEdge.TOP, value);
-      } else if (attribute == R.styleable.yoga_yg_marginRight) {
-        node.setMargin(YogaEdge.RIGHT, value);
-      } else if (attribute == R.styleable.yoga_yg_marginBottom) {
-        node.setMargin(YogaEdge.BOTTOM, value);
-      } else if (attribute == R.styleable.yoga_yg_marginStart) {
-        node.setMargin(YogaEdge.START, value);
-      } else if (attribute == R.styleable.yoga_yg_marginEnd) {
-        node.setMargin(YogaEdge.END, value);
-      } else if (attribute == R.styleable.yoga_yg_marginHorizontal) {
-        node.setMargin(YogaEdge.HORIZONTAL, value);
-      } else if (attribute == R.styleable.yoga_yg_marginVertical) {
-        node.setMargin(YogaEdge.VERTICAL, value);
-      } else if (attribute == R.styleable.yoga_yg_marginAll) {
-        node.setMargin(YogaEdge.ALL, value);
-      } else if (attribute == R.styleable.yoga_yg_maxHeight) {
-        node.setMaxHeight(value);
-      } else if (attribute == R.styleable.yoga_yg_maxWidth) {
-        node.setMaxWidth(value);
-      } else if (attribute == R.styleable.yoga_yg_minHeight) {
-        node.setMinHeight(value);
-      } else if (attribute == R.styleable.yoga_yg_minWidth) {
-        node.setMinWidth(value);
-      } else if (attribute == R.styleable.yoga_yg_overflow) {
-        node.setOverflow(YogaOverflow.fromInt(Math.round(value)));
-      } else if (attribute == R.styleable.yoga_yg_paddingLeft) {
-        node.setPadding(YogaEdge.LEFT, value);
-      } else if (attribute == R.styleable.yoga_yg_paddingTop) {
-        node.setPadding(YogaEdge.TOP, value);
-      } else if (attribute == R.styleable.yoga_yg_paddingRight) {
-        node.setPadding(YogaEdge.RIGHT, value);
-      } else if (attribute == R.styleable.yoga_yg_paddingBottom) {
-        node.setPadding(YogaEdge.BOTTOM, value);
-      } else if (attribute == R.styleable.yoga_yg_paddingStart) {
-        node.setPadding(YogaEdge.START, value);
-      } else if (attribute == R.styleable.yoga_yg_paddingEnd) {
-        node.setPadding(YogaEdge.END, value);
-      } else if (attribute == R.styleable.yoga_yg_paddingHorizontal) {
-        node.setPadding(YogaEdge.HORIZONTAL, value);
-      } else if (attribute == R.styleable.yoga_yg_paddingVertical) {
-        node.setPadding(YogaEdge.VERTICAL, value);
-      } else if (attribute == R.styleable.yoga_yg_paddingAll) {
-        node.setPadding(YogaEdge.ALL, value);
-      } else if (attribute == R.styleable.yoga_yg_positionLeft) {
-        node.setPosition(YogaEdge.LEFT, value);
-      } else if (attribute == R.styleable.yoga_yg_positionTop) {
-        node.setPosition(YogaEdge.TOP, value);
-      } else if (attribute == R.styleable.yoga_yg_positionRight) {
-        node.setPosition(YogaEdge.RIGHT, value);
-      } else if (attribute == R.styleable.yoga_yg_positionBottom) {
-        node.setPosition(YogaEdge.BOTTOM, value);
-      } else if (attribute == R.styleable.yoga_yg_positionStart) {
-        node.setPosition(YogaEdge.START, value);
-      } else if (attribute == R.styleable.yoga_yg_positionEnd) {
-        node.setPosition(YogaEdge.END, value);
-      } else if (attribute == R.styleable.yoga_yg_positionHorizontal) {
-        node.setPosition(YogaEdge.HORIZONTAL, value);
-      } else if (attribute == R.styleable.yoga_yg_positionVertical) {
-        node.setPosition(YogaEdge.VERTICAL, value);
-      } else if (attribute == R.styleable.yoga_yg_positionAll) {
-        node.setPosition(YogaEdge.ALL, value);
-      } else if (attribute == R.styleable.yoga_yg_positionType) {
-        node.setPositionType(YogaPositionType.fromInt(Math.round(value)));
-      } else if (attribute == R.styleable.yoga_yg_width) {
-        node.setWidth(value);
-      } else if (attribute == R.styleable.yoga_yg_wrap) {
-        node.setWrap(YogaWrap.fromInt(Math.round(value)));
-      }
-    }
-
-    for (int i = 0; i < layoutParameters.stringAttributes.size(); i++) {
-      final int attribute = layoutParameters.stringAttributes.keyAt(i);
-      final String value = layoutParameters.stringAttributes.valueAt(i);
-
-      if (value.equals("auto")) {
-        if (attribute == R.styleable.yoga_yg_marginLeft) {
-          node.setMarginAuto(YogaEdge.LEFT);
-        } else if (attribute == R.styleable.yoga_yg_marginTop) {
-          node.setMarginAuto(YogaEdge.TOP);
-        } else if (attribute == R.styleable.yoga_yg_marginRight) {
-          node.setMarginAuto(YogaEdge.RIGHT);
-        } else if (attribute == R.styleable.yoga_yg_marginBottom) {
-          node.setMarginAuto(YogaEdge.BOTTOM);
-        } else if (attribute == R.styleable.yoga_yg_marginStart) {
-          node.setMarginAuto(YogaEdge.START);
-        } else if (attribute == R.styleable.yoga_yg_marginEnd) {
-          node.setMarginAuto(YogaEdge.END);
-        } else if (attribute == R.styleable.yoga_yg_marginHorizontal) {
-          node.setMarginAuto(YogaEdge.HORIZONTAL);
-        } else if (attribute == R.styleable.yoga_yg_marginVertical) {
-          node.setMarginAuto(YogaEdge.VERTICAL);
-        } else if (attribute == R.styleable.yoga_yg_marginAll) {
-          node.setMarginAuto(YogaEdge.ALL);
-        }
-      }
-
-      if (value.endsWith("%")) {
-        final float numericValue = Float.parseFloat(value.substring(0, value.length()-1));
-
-        if (attribute == R.styleable.yoga_yg_flexBasis) {
-          node.setFlexBasisPercent(numericValue);
-        } else if (attribute == R.styleable.yoga_yg_height) {
-          node.setHeightPercent(numericValue);
-        } else if (attribute == R.styleable.yoga_yg_marginLeft) {
-          node.setMarginPercent(YogaEdge.LEFT, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_marginTop) {
-          node.setMarginPercent(YogaEdge.TOP, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_marginRight) {
-          node.setMarginPercent(YogaEdge.RIGHT, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_marginBottom) {
-          node.setMarginPercent(YogaEdge.BOTTOM, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_marginStart) {
-          node.setMarginPercent(YogaEdge.START, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_marginEnd) {
-          node.setMarginPercent(YogaEdge.END, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_marginHorizontal) {
-          node.setMarginPercent(YogaEdge.HORIZONTAL, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_marginVertical) {
-          node.setMarginPercent(YogaEdge.VERTICAL, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_marginAll) {
-          node.setMarginPercent(YogaEdge.ALL, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_maxHeight) {
-          node.setMaxHeightPercent(numericValue);
-        } else if (attribute == R.styleable.yoga_yg_maxWidth) {
-          node.setMaxWidthPercent(numericValue);
-        } else if (attribute == R.styleable.yoga_yg_minHeight) {
-          node.setMinHeightPercent(numericValue);
-        } else if (attribute == R.styleable.yoga_yg_minWidth) {
-          node.setMinWidthPercent(numericValue);
-        } else if (attribute == R.styleable.yoga_yg_paddingLeft) {
-          node.setPaddingPercent(YogaEdge.LEFT, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_paddingTop) {
-          node.setPaddingPercent(YogaEdge.TOP, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_paddingRight) {
-          node.setPaddingPercent(YogaEdge.RIGHT, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_paddingBottom) {
-          node.setPaddingPercent(YogaEdge.BOTTOM, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_paddingStart) {
-          node.setPaddingPercent(YogaEdge.START, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_paddingEnd) {
-          node.setPaddingPercent(YogaEdge.END, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_paddingHorizontal) {
-          node.setPaddingPercent(YogaEdge.HORIZONTAL, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_paddingVertical) {
-          node.setPaddingPercent(YogaEdge.VERTICAL, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_paddingAll) {
-          node.setPaddingPercent(YogaEdge.ALL, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_positionLeft) {
-          node.setPositionPercent(YogaEdge.LEFT, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_positionTop) {
-          node.setPositionPercent(YogaEdge.TOP, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_positionRight) {
-          node.setPositionPercent(YogaEdge.RIGHT, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_positionBottom) {
-          node.setPositionPercent(YogaEdge.BOTTOM, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_positionStart) {
-          node.setPositionPercent(YogaEdge.START, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_positionEnd) {
-          node.setPositionPercent(YogaEdge.END, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_positionHorizontal) {
-          node.setPositionPercent(YogaEdge.HORIZONTAL, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_positionVertical) {
-          node.setPositionPercent(YogaEdge.VERTICAL, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_positionAll) {
-          node.setPositionPercent(YogaEdge.ALL, numericValue);
-        } else if (attribute == R.styleable.yoga_yg_width) {
-          node.setWidthPercent(numericValue);
-        }
-      }
-    }
-  }
-
-  @Override
-  public ViewGroup.LayoutParams generateLayoutParams(AttributeSet attrs) {
-    return new YogaLayout.LayoutParams(getContext(), attrs);
-  }
-
-  @Override
-  protected ViewGroup.LayoutParams generateDefaultLayoutParams() {
-    return new YogaLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
-                                       ViewGroup.LayoutParams.MATCH_PARENT);
-  }
-
-  @Override
-  protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) {
-    return new YogaLayout.LayoutParams(p);
-  }
-
-  @Override
-  protected boolean checkLayoutParams(ViewGroup.LayoutParams p) {
-    return p instanceof LayoutParams;
-  }
-
-  /**
-   * {@code YogaLayout.LayoutParams} are used by views to tell {@link YogaLayout} how they want to
-   * be laid out.  More precisely, the specify the yoga parameters of the view.
-   *
-   * <p>
-   * This is actually mostly a wrapper around a {@code SparseArray} that holds a mapping between
-   * styleable id's ({@code R.styleable.yoga_yg_*}) and the float of their values.  In cases where
-   * the value is an enum or an integer, they should first be cast to int (with rounding) before
-   * using.
-   */
-  public static class LayoutParams extends ViewGroup.LayoutParams {
-
-    /**
-     * A mapping from attribute keys ({@code R.styleable.yoga_yg_*}) to the float of their values.
-     * For attributes like position_percent_left (float), this is the native type.  For attributes
-     * like align_self (enums), the integer enum value is cast (rounding is used on the other side
-     * to prevent precision errors).  Dimension attributes are stored as float pixels.
-     */
-    SparseArray<Float> numericAttributes;
-
-    /**
-     * A mapping from attribute keys ({@code R.styleable.yoga_yg_*}) with string values to those
-     * strings.  This is used for values such as "auto".
-     */
-    SparseArray<String> stringAttributes;
-
-    /**
-     * Constructs a set of layout params from a source set.  In the case that the source set is
-     * actually a {@link YogaLayout.LayoutParams}, we can copy all the yoga attributes.  Otherwise
-     * we start with a blank slate.
-     *
-     * @param source The layout params to copy from
-     */
-    public LayoutParams(ViewGroup.LayoutParams source) {
-      super(source);
-      if (source instanceof LayoutParams) {
-        numericAttributes = ((LayoutParams) source).numericAttributes.clone();
-        stringAttributes = ((LayoutParams) source).stringAttributes.clone();
-      } else {
-        numericAttributes = new SparseArray<>();
-        stringAttributes = new SparseArray<>();
-
-        // Negative values include MATCH_PARENT and WRAP_CONTENT
-        if (source.width >= 0) {
-          numericAttributes.put(R.styleable.yoga_yg_width, (float) width);
-        }
-        if (source.height >= 0) {
-          numericAttributes.put(R.styleable.yoga_yg_height, (float) height);
-        }
-      }
-    }
-
-    /**
-     * Constructs a set of layout params, given width and height specs.  In this case, we can set
-     * the {@code yoga:width} and {@code yoga:height} if we are given them explicitly.  If other
-     * options (such as {@code match_owner} or {@code wrap_content} are given, then the owner
-     * LayoutParams will store them, and we deal with them during layout. (see
-     * {@link YogaLayout#createLayout})
-     *
-     * @param width the requested width, either a pixel size, {@code WRAP_CONTENT} or
-     *        {@code MATCH_PARENT}.
-     * @param height the requested height, either a pixel size, {@code WRAP_CONTENT} or
-     *        {@code MATCH_PARENT}.
-     */
-    public LayoutParams(int width, int height) {
-      super(width, height);
-      numericAttributes = new SparseArray<>();
-      stringAttributes = new SparseArray<>();
-      // Negative values include MATCH_PARENT and WRAP_CONTENT
-      if (width >= 0) {
-        numericAttributes.put(R.styleable.yoga_yg_width, (float) width);
-      }
-      if (height >= 0) {
-        numericAttributes.put(R.styleable.yoga_yg_height, (float) height);
-      }
-    }
-
-    /**
-     * Constructs a set of layout params, given attributes.  Grabs all the {@code yoga:*}
-     * defined in {@code ALL_YOGA_ATTRIBUTES} and collects the ones that are set in {@code attrs}.
-     *
-     * @param context the application environment
-     * @param attrs the set of attributes from which to extract the yoga specific attributes
-     */
-    public LayoutParams(Context context, AttributeSet attrs) {
-      super(context, attrs);
-      numericAttributes = new SparseArray<>();
-      stringAttributes = new SparseArray<>();
-      final TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.yoga);
-
-      // Negative values include MATCH_PARENT and WRAP_CONTENT
-      if (width >= 0) {
-        numericAttributes.put(R.styleable.yoga_yg_width, (float) width);
-      }
-      if (height >= 0) {
-        numericAttributes.put(R.styleable.yoga_yg_height, (float) height);
-      }
-
-      final int attributeCount = a.getIndexCount();
-      for (int i = 0; i < attributeCount; i++) {
-        final int attribute = a.getIndex(i);
-        final TypedValue val = new TypedValue();
-        a.getValue(attribute, val);
-
-        if (val.type == TypedValue.TYPE_DIMENSION) {
-          numericAttributes.put(
-              attribute,
-              (float) a.getDimensionPixelSize(attribute, 0));
-        } else if (val.type == TypedValue.TYPE_STRING) {
-          stringAttributes.put(attribute, a.getString(attribute));
-        } else {
-          numericAttributes.put(attribute, a.getFloat(attribute, 0));
-        }
-      }
-      a.recycle();
-    }
-  }
-
-  /**
-   * Wrapper around measure function for yoga leaves.
-   */
-  public static class ViewMeasureFunction implements YogaMeasureFunction {
-
-    /**
-     * A function to measure leaves of the Yoga tree.  Yoga needs some way to know how large
-     * elements want to be.  This function passes that question directly through to the relevant
-     * {@code View}'s measure function.
-     *
-     * @param node The yoga node to measure
-     * @param width The suggested width from the owner
-     * @param widthMode The type of suggestion for the width
-     * @param height The suggested height from the owner
-     * @param heightMode The type of suggestion for the height
-     * @return A measurement output ({@code YogaMeasureOutput}) for the node
-     */
-    public long measure(
-        YogaNode node,
-        float width,
-        YogaMeasureMode widthMode,
-        float height,
-        YogaMeasureMode heightMode) {
-      final View view = (View) node.getData();
-      if (view == null || view instanceof YogaLayout) {
-        return YogaMeasureOutput.make(0, 0);
-      }
-
-      final int widthMeasureSpec = MeasureSpec.makeMeasureSpec(
-          (int) width,
-          viewMeasureSpecFromYogaMeasureMode(widthMode));
-      final int heightMeasureSpec = MeasureSpec.makeMeasureSpec(
-          (int) height,
-          viewMeasureSpecFromYogaMeasureMode(heightMode));
-
-      view.measure(widthMeasureSpec, heightMeasureSpec);
-
-      return YogaMeasureOutput.make(view.getMeasuredWidth(), view.getMeasuredHeight());
-    }
-
-    private int viewMeasureSpecFromYogaMeasureMode(YogaMeasureMode mode) {
-      if (mode == YogaMeasureMode.AT_MOST) {
-        return MeasureSpec.AT_MOST;
-      } else if (mode == YogaMeasureMode.EXACTLY) {
-        return MeasureSpec.EXACTLY;
-      } else {
-        return MeasureSpec.UNSPECIFIED;
-      }
-    }
-  }
-}

android/src/main/java/com/facebook/yoga/android/YogaViewLayoutFactory.java

@@ -1,57 +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.
- */
-
-package com.facebook.yoga.android;
-
-import android.content.Context;
-import android.util.AttributeSet;
-import android.view.LayoutInflater;
-import android.view.View;
-
-/**
- * A layout inflater factory.  This provides our custom {@link YogaViewLayoutFactory#onCreateView}
- * to the XML inflation system, allowing us to replace XML tags.
- */
-public class YogaViewLayoutFactory implements LayoutInflater.Factory {
-  private static YogaViewLayoutFactory sYogaViewLayoutFactory;
-
-  /**
-   * Obtains (and initialises if necessary) the singleton {@link YogaViewLayoutFactory}.
-   *
-   * @return The singleton instance
-   */
-  public static YogaViewLayoutFactory getInstance() {
-    if (sYogaViewLayoutFactory == null) {
-      sYogaViewLayoutFactory = new YogaViewLayoutFactory();
-    }
-    return sYogaViewLayoutFactory;
-  }
-
-  YogaViewLayoutFactory() {}
-
-  /**
-   * Hook for inflating from a LayoutInflater.  This hook replaces the cumbersome
-   * {@code com.facebook.etc.YogaLayout} with simply {@code YogaLayout} in your XML and the same
-   * with {@code VirtualYogaLayout}.
-   *
-   * @param name Tag name to be inflated.
-   * @param context The context the view is being created in.
-   * @param attrs Inflation attributes as specified in XML file.
-   *
-   * @return View Newly created view. Return null for the default behavior.
-   */
-  @Override
-  public View onCreateView(String name, Context context, AttributeSet attrs) {
-    if (YogaLayout.class.getSimpleName().equals(name)) {
-      return new YogaLayout(context, attrs);
-    }
-    if (VirtualYogaLayout.class.getSimpleName().equals(name)) {
-      return new VirtualYogaLayout(context, attrs);
-    }
-    return null;
-  }
-}

android/src/main/res/values/attrs.xml

@@ -1,150 +0,0 @@
-<?xml version="1.0" encoding="utf-8" ?>
-
-<!--
-  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.
--->
-
-<resources>
-  <declare-styleable name="yoga">
-
-    <attr name="yg_alignContent" format="enum">
-      <enum name="auto" value="0"/>
-      <enum name="flex_start" value="1"/>
-      <enum name="center" value="2"/>
-      <enum name="flex_end" value="3"/>
-      <enum name="stretch" value="4"/>
-      <enum name="baseline" value="5"/>
-    </attr>
-
-    <attr name="yg_alignItems" format="enum">
-      <enum name="auto" value="0"/>
-      <enum name="flex_start" value="1"/>
-      <enum name="center" value="2"/>
-      <enum name="flex_end" value="3"/>
-      <enum name="stretch" value="4"/>
-      <enum name="baseline" value="5"/>
-    </attr>
-
-    <attr name="yg_alignSelf" format="enum">
-      <enum name="auto" value="0"/>
-      <enum name="flex_start" value="1"/>
-      <enum name="center" value="2"/>
-      <enum name="flex_end" value="3"/>
-      <enum name="stretch" value="4"/>
-      <enum name="baseline" value="5"/>
-    </attr>
-
-    <attr name="yg_aspectRatio" format="float"/>
-
-    <attr name="yg_borderLeft" format="dimension"/>
-    <attr name="yg_borderTop" format="dimension"/>
-    <attr name="yg_borderRight" format="dimension"/>
-    <attr name="yg_borderBottom" format="dimension"/>
-    <attr name="yg_borderStart" format="dimension"/>
-    <attr name="yg_borderEnd" format="dimension"/>
-    <attr name="yg_borderHorizontal" format="dimension"/>
-    <attr name="yg_borderVertical" format="dimension"/>
-    <attr name="yg_borderAll" format="dimension"/>
-
-    <attr name="yg_direction" format="enum">
-      <enum name="inherit" value="0"/>
-      <enum name="ltr" value="1"/>
-      <enum name="rtl" value="2"/>
-    </attr>
-
-    <attr name="yg_display" format="enum">
-      <enum name="flex" value="0"/>
-      <enum name="none" value="1"/>
-    </attr>
-
-    <attr name="yg_flex" format="float"/>
-
-    <attr name="yg_flexBasis" format="float|string"/>
-
-    <attr name="yg_flexDirection" format="enum">
-      <enum name="column" value="0"/>
-      <enum name="column_reverse" value="1"/>
-      <enum name="row" value="2"/>
-      <enum name="row_reverse" value="3"/>
-    </attr>
-
-    <attr name="yg_flexGrow" format="float"/>
-
-    <attr name="yg_flexShrink" format="float"/>
-
-    <attr name="yg_height" format="dimension|string"/>
-
-    <attr name="yg_justifyContent" format="enum">
-      <enum name="flex_start" value="0"/>
-      <enum name="center" value="1"/>
-      <enum name="flex_end" value="2"/>
-      <enum name="space_between" value="3"/>
-      <enum name="space_around" value="4"/>
-    </attr>
-
-    <attr name="yg_marginLeft" format="dimension|string"/>
-    <attr name="yg_marginTop" format="dimension|string"/>
-    <attr name="yg_marginRight" format="dimension|string"/>
-    <attr name="yg_marginBottom" format="dimension|string"/>
-    <attr name="yg_marginStart" format="dimension|string"/>
-    <attr name="yg_marginEnd" format="dimension|string"/>
-    <attr name="yg_marginHorizontal" format="dimension|string"/>
-    <attr name="yg_marginVertical" format="dimension|string"/>
-    <attr name="yg_marginAll" format="dimension|string"/>
-
-    <attr name="yg_maxHeight" format="dimension|string"/>
-
-    <attr name="yg_maxWidth" format="dimension|string"/>
-
-    <attr name="yg_minHeight" format="dimension|string"/>
-
-    <attr name="yg_minWidth" format="dimension|string"/>
-
-    <attr name="yg_overflow" format="enum">
-      <enum name="visible" value="0"/>
-      <enum name="hidden" value="1"/>
-      <enum name="scroll" value="2"/>
-    </attr>
-
-    <attr name="yg_paddingLeft" format="dimension|string"/>
-    <attr name="yg_paddingTop" format="dimension|string"/>
-    <attr name="yg_paddingRight" format="dimension|string"/>
-    <attr name="yg_paddingBottom" format="dimension|string"/>
-    <attr name="yg_paddingStart" format="dimension|string"/>
-    <attr name="yg_paddingEnd" format="dimension|string"/>
-    <attr name="yg_paddingHorizontal" format="dimension|string"/>
-    <attr name="yg_paddingVertical" format="dimension|string"/>
-    <attr name="yg_paddingAll" format="dimension|string"/>
-
-    <attr name="yg_positionLeft" format="dimension|string"/>
-    <attr name="yg_positionTop" format="dimension|string"/>
-    <attr name="yg_positionRight" format="dimension|string"/>
-    <attr name="yg_positionBottom" format="dimension|string"/>
-    <attr name="yg_positionStart" format="dimension|string"/>
-    <attr name="yg_positionEnd" format="dimension|string"/>
-    <attr name="yg_positionHorizontal" format="dimension|string"/>
-    <attr name="yg_positionVertical" format="dimension|string"/>
-    <attr name="yg_positionAll" format="dimension|string"/>
-
-    <attr name="yg_positionType" format="enum">
-      <!-- "static" is a reserved keyword
-      <enum name="static" value="0"/>
-      -->
-      <enum name="relative" value="1"/>
-      <enum name="absolute" value="2"/>
-      <enum name="position_static" value="0"/>
-      <enum name="position_relative" value="1"/>
-      <enum name="position_absolute" value="2"/>
-    </attr>
-
-    <attr name="yg_width" format="dimension|string"/>
-
-    <attr name="yg_wrap" format="enum">
-      <enum name="no_wrap" value="0"/>
-      <enum name="wrap" value="1"/>
-    </attr>
-  </declare-styleable>
-</resources>

benchmark/Benchmark.cpp

@@ -0,0 +1,400 @@
+/*
+ * 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.
+ */
+
+#include <chrono>
+#include <filesystem>
+#include <fstream>
+#include <iostream>
+#include <thread>
+
+#include <benchmark/Benchmark.h>
+#include <benchmark/TreeDeserialization.h>
+#include <capture/CaptureTree.h>
+#include <nlohmann/json.hpp>
+
+namespace facebook::yoga {
+
+using namespace nlohmann;
+using namespace std::chrono;
+
+constexpr uint32_t kNumRepetitions = 100;
+using SteadyClockDurations =
+    std::array<steady_clock::duration, kNumRepetitions>;
+
+static bool inputsMatch(
+    float actualWidth,
+    float expectedWidth,
+    float actualHeight,
+    float expectedHeight,
+    YGMeasureMode actualWidthMode,
+    YGMeasureMode expectedWidthMode,
+    YGMeasureMode actualHeightMode,
+    YGMeasureMode expectedHeightMode) {
+  bool widthsAreUndefined =
+      YGFloatIsUndefined(actualWidth) && YGFloatIsUndefined(expectedWidth);
+  bool widthsAreEqual = widthsAreUndefined || actualWidth == expectedWidth;
+  bool heightsAreUndefined =
+      YGFloatIsUndefined(actualHeight) && YGFloatIsUndefined(expectedHeight);
+  bool heightsAreEqual = heightsAreUndefined || actualHeight == expectedHeight;
+
+  return widthsAreEqual && heightsAreEqual &&
+      actualWidthMode == expectedWidthMode &&
+      actualHeightMode == expectedHeightMode;
+}
+
+YGSize defaultMeasureFunctionResult() {
+  std::cout << "Trying to measure a node that wasn't serialized" << std::endl;
+  return {10.0, 10.0};
+}
+
+YGSize mockMeasureFunc(
+    YGNodeConstRef node,
+    float availableWidth,
+    YGMeasureMode widthMode,
+    float availableHeight,
+    YGMeasureMode heightMode) {
+  (void)node;
+  auto fnsPtr = static_cast<SerializedMeasureFuncMap*>(YGNodeGetContext(node));
+
+  if (fnsPtr == nullptr) {
+    return defaultMeasureFunctionResult();
+  }
+
+  auto fnsIt = fnsPtr->find(node);
+  if (fnsIt == fnsPtr->end()) {
+    return defaultMeasureFunctionResult();
+  }
+
+  for (auto measureFunc : fnsIt->second) {
+    if (inputsMatch(
+            availableWidth,
+            measureFunc.inputWidth,
+            availableHeight,
+            measureFunc.inputHeight,
+            widthMode,
+            measureFunc.widthMode,
+            heightMode,
+            measureFunc.heightMode)) {
+      std::this_thread::sleep_for(
+          std::chrono::nanoseconds(measureFunc.durationNs));
+      return {measureFunc.outputWidth, measureFunc.outputHeight};
+    }
+  }
+
+  return defaultMeasureFunctionResult();
+}
+
+std::shared_ptr<const YGConfig> buildConfigFromJson(const json& j) {
+  json jsonConfig = j["config"];
+  std::shared_ptr<YGConfig> config(YGConfigNew(), YGConfigFree);
+  for (json::iterator it = jsonConfig.begin(); it != jsonConfig.end(); it++) {
+    if (it.key() == "use-web-defaults") {
+      YGConfigSetUseWebDefaults(config.get(), it.value());
+    } else if (it.key() == "point-scale-factor") {
+      YGConfigSetPointScaleFactor(config.get(), it.value());
+    } else if (it.key() == "errata") {
+      YGConfigSetErrata(config.get(), errataFromString(it.value()));
+    } else if (it.key() == "experimental-features") {
+      // Experimental features is serialized into an array where the values
+      // present indicate that that feature is enabled
+      for (json::iterator efIt = it.value().begin(); efIt != it.value().end();
+           efIt++) {
+        YGConfigSetExperimentalFeatureEnabled(
+            config.get(), experimentalFeatureFromString(efIt.value()), true);
+      }
+    }
+  }
+
+  return config;
+}
+
+std::string edgeStringFromPropertyName(
+    const std::string& key,
+    const std::string& propertyName) {
+  return key.substr(propertyName.length() + 1);
+}
+
+void setStylesFromJson(const json& j, YGNodeRef node) {
+  json style = j["style"];
+  for (const auto& [key, value] : style.items()) {
+    if (key == "flex-direction") {
+      YGNodeStyleSetFlexDirection(node, flexDirectionFromString(value));
+    } else if (key == "justify-content") {
+      YGNodeStyleSetJustifyContent(node, justifyContentFromString(value));
+    } else if (key == "align-items") {
+      YGNodeStyleSetAlignItems(node, alignFromString(value));
+    } else if (key == "align-content") {
+      YGNodeStyleSetAlignContent(node, alignFromString(value));
+    } else if (key == "align-self") {
+      YGNodeStyleSetAlignSelf(node, alignFromString(value));
+    } else if (key == "flex-wrap") {
+      YGNodeStyleSetFlexWrap(node, wrapFromString(value));
+    } else if (key == "overflow") {
+      YGNodeStyleSetOverflow(node, overflowFromString(value));
+    } else if (key == "display") {
+      YGNodeStyleSetDisplay(node, displayFromString(value));
+    } else if (key == "position-type") {
+      YGNodeStyleSetPositionType(node, positionTypeFromString(value));
+    } else if (key == "flex-grow") {
+      YGNodeStyleSetFlexGrow(node, value);
+    } else if (key == "flex-shrink") {
+      YGNodeStyleSetFlexShrink(node, value);
+    } else if (key == "flex") {
+      YGNodeStyleSetFlex(node, value);
+    } else if (key == "flex-basis") {
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitAuto) {
+        YGNodeStyleSetFlexBasisAuto(node);
+      } else if (unit == YGUnitPoint) {
+        YGNodeStyleSetFlexBasis(node, value["value"]);
+      } else if (unit == YGUnitPercent) {
+        YGNodeStyleSetFlexBasisPercent(node, value["value"]);
+      }
+    } else if (key.starts_with("position")) {
+      YGEdge edge = edgeFromString(edgeStringFromPropertyName(key, "position"));
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetPosition(node, edge, value["value"]);
+      } else if (unit == YGUnitPercent) {
+        YGNodeStyleSetPositionPercent(node, edge, value["value"]);
+      }
+    } else if (key.starts_with("padding")) {
+      YGEdge edge = edgeFromString(edgeStringFromPropertyName(key, "padding"));
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetPadding(node, edge, value["value"]);
+      } else if (unit == YGUnitPercent) {
+        YGNodeStyleSetPaddingPercent(node, edge, value["value"]);
+      }
+    } else if (key.starts_with("border")) {
+      YGEdge edge = edgeFromString(edgeStringFromPropertyName(key, "border"));
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetBorder(node, edge, value["value"]);
+      }
+    } else if (key.starts_with("margin")) {
+      YGEdge edge = edgeFromString(edgeStringFromPropertyName(key, "margin"));
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetMargin(node, edge, value["value"]);
+      } else if (unit == YGUnitPercent) {
+        YGNodeStyleSetMarginPercent(node, edge, value["value"]);
+      } else if (unit == YGUnitAuto) {
+        YGNodeStyleSetMarginAuto(node, edge);
+      }
+    } else if (key == "gap") {
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetGap(node, YGGutterAll, value["value"]);
+      }
+    } else if (key == "column-gap") {
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetGap(node, YGGutterColumn, value["value"]);
+      }
+    } else if (key == "row-gap") {
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetGap(node, YGGutterRow, value["value"]);
+      }
+    } else if (key == "height") {
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitAuto) {
+        YGNodeStyleSetHeightAuto(node);
+      } else if (unit == YGUnitPoint) {
+        YGNodeStyleSetHeight(node, value["value"]);
+      } else if (unit == YGUnitPercent) {
+        YGNodeStyleSetHeightPercent(node, value["value"]);
+      }
+    } else if (key == "width") {
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitAuto) {
+        YGNodeStyleSetWidthAuto(node);
+      } else if (unit == YGUnitPoint) {
+        YGNodeStyleSetWidth(node, value["value"]);
+      } else if (unit == YGUnitPercent) {
+        YGNodeStyleSetWidthPercent(node, value["value"]);
+      }
+    } else if (key == "min-height") {
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetMinHeight(node, value["value"]);
+      } else if (unit == YGUnitPercent) {
+        YGNodeStyleSetMinHeightPercent(node, value["value"]);
+      }
+    } else if (key == "min-width") {
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetMinWidth(node, value["value"]);
+      } else if (unit == YGUnitPercent) {
+        YGNodeStyleSetMinWidthPercent(node, value["value"]);
+      }
+    } else if (key == "max-height") {
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetMaxHeight(node, value["value"]);
+      } else if (unit == YGUnitPercent) {
+        YGNodeStyleSetMaxHeightPercent(node, value["value"]);
+      }
+    } else if (key == "max-width") {
+      YGUnit unit = unitFromJson(value);
+      if (unit == YGUnitPoint) {
+        YGNodeStyleSetMaxWidth(node, value["value"]);
+      } else if (unit == YGUnitPercent) {
+        YGNodeStyleSetMaxWidthPercent(node, value["value"]);
+      }
+    }
+  }
+}
+
+std::shared_ptr<YGNode> buildNodeFromJson(
+    const json& j,
+    std::shared_ptr<const YGConfig> config,
+    std::shared_ptr<SerializedMeasureFuncMap> fns) {
+  std::shared_ptr<YGNode> node(YGNodeNewWithConfig(config.get()), YGNodeFree);
+
+  if (!j.contains("node") || j["node"].is_null()) {
+    return node;
+  }
+
+  json nodeState = j["node"];
+  for (json::iterator it = nodeState.begin(); it != nodeState.end(); it++) {
+    if (it.key() == "always-forms-containing-block") {
+      YGNodeSetAlwaysFormsContainingBlock(node.get(), it.value());
+    } else if (it.key() == "measure-funcs") {
+      std::vector<SerializedMeasureFunc> vec{};
+      for (auto measureFuncJson : it.value()) {
+        vec.push_back(serializedMeasureFuncFromJson(measureFuncJson));
+      }
+      fns->insert(std::make_pair(node.get(), vec));
+      YGNodeSetContext(node.get(), it.value().is_null() ? nullptr : fns.get());
+      YGNodeSetMeasureFunc(node.get(), mockMeasureFunc);
+    }
+  }
+
+  return node;
+}
+
+std::shared_ptr<YogaNodeAndConfig> buildTreeFromJson(
+    const json& j,
+    std::shared_ptr<SerializedMeasureFuncMap> fns,
+    std::shared_ptr<YogaNodeAndConfig> parent,
+    size_t index) {
+  auto config = buildConfigFromJson(j);
+  auto node = buildNodeFromJson(j, config, fns);
+  auto wrapper = std::make_shared<YogaNodeAndConfig>(
+      node, config, std::vector<std::shared_ptr<YogaNodeAndConfig>>{});
+
+  if (parent != nullptr) {
+    YGNodeInsertChild(parent->node_.get(), node.get(), index);
+    parent->children_.push_back(wrapper);
+  }
+
+  setStylesFromJson(j, node.get());
+
+  if (j.contains("children")) {
+    json children = j["children"];
+    size_t childIndex = 0;
+    for (const json& child : children) {
+      buildTreeFromJson(child, fns, wrapper, childIndex);
+      childIndex++;
+    }
+  }
+
+  return wrapper;
+}
+
+BenchmarkResult generateBenchmark(json& capture) {
+  auto fns = std::make_shared<SerializedMeasureFuncMap>();
+
+  auto treeCreationBegin = steady_clock::now();
+  std::shared_ptr<YogaNodeAndConfig> root =
+      buildTreeFromJson(capture["tree"], fns, nullptr, 0 /*index*/);
+  auto treeCreationEnd = steady_clock::now();
+
+  json layoutInputs = capture["layout-inputs"];
+  float availableWidth = layoutInputs["available-width"];
+  float availableHeight = layoutInputs["available-height"];
+  YGDirection direction = directionFromString(layoutInputs["owner-direction"]);
+
+  auto layoutBegin = steady_clock::now();
+  YGNodeCalculateLayout(
+      root->node_.get(), availableWidth, availableHeight, direction);
+  auto layoutEnd = steady_clock::now();
+
+  return BenchmarkResult{
+      treeCreationEnd - treeCreationBegin, layoutEnd - layoutBegin};
+}
+
+static void printBenchmarkResult(
+    const std::string& name,
+    SteadyClockDurations& durations) {
+  std::array<double, kNumRepetitions> timesInMs{};
+  double mean = 0;
+  for (uint32_t i = 0; i < kNumRepetitions; i++) {
+    auto ms = duration<double, std::milli>(durations[i]).count();
+    timesInMs[i] = ms;
+    mean += ms;
+  }
+  mean /= kNumRepetitions;
+
+  std::sort(timesInMs.begin(), timesInMs.end());
+  double median = timesInMs[kNumRepetitions / 2];
+
+  double variance = 0;
+  for (uint32_t i = 0; i < kNumRepetitions; i++) {
+    variance += std::pow(timesInMs[i] - mean, 2);
+  }
+  variance /= kNumRepetitions;
+  double stddev = std::sqrt(variance);
+
+  printf("%s: median: %lf ms, stddev: %lf ms\n", name.c_str(), median, stddev);
+}
+
+void benchmark(std::filesystem::path& capturesDir) {
+  for (auto& capture : std::filesystem::directory_iterator(capturesDir)) {
+    if (capture.is_directory() || capture.path().extension() != ".json") {
+      continue;
+    }
+
+    SteadyClockDurations treeCreationDurations;
+    SteadyClockDurations layoutDurations;
+    SteadyClockDurations totalDurations;
+
+    std::ifstream captureFile(capture.path());
+    json j = json::parse(captureFile);
+    std::string captureName = capture.path().stem().string();
+
+    std::cout << "Starting benchmark for " << captureName << std::endl;
+    for (uint32_t i = 0; i < kNumRepetitions; i++) {
+      BenchmarkResult result = generateBenchmark(j);
+      treeCreationDurations[i] = result.treeCreationDuration;
+      layoutDurations[i] = result.layoutDuration;
+      totalDurations[i] = result.treeCreationDuration + result.layoutDuration;
+    }
+
+    printBenchmarkResult(captureName + " tree creation", treeCreationDurations);
+    printBenchmarkResult(captureName + " layout", layoutDurations);
+    printBenchmarkResult(captureName + " total", totalDurations);
+
+    std::cout << std::endl;
+  }
+}
+
+} // namespace facebook::yoga
+
+int main(int argc, char* argv[]) {
+  if (argc == 2) {
+    std::filesystem::path capturesDir = argv[argc - 1];
+    facebook::yoga::benchmark(capturesDir);
+  } else {
+    throw std::invalid_argument("Expecting a path as an argument");
+    return 1;
+  }
+
+  return 0;
+}

benchmark/Benchmark.h

@@ -0,0 +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.
+ */
+
+#pragma once
+
+#include <chrono>
+#include <memory>
+#include <string>
+#include <utility>
+#include <vector>
+
+#include <yoga/Yoga.h>
+
+namespace facebook::yoga {
+
+struct YogaNodeAndConfig {
+  YogaNodeAndConfig(
+      std::shared_ptr<YGNode> node,
+      std::shared_ptr<const YGConfig> config,
+      std::vector<std::shared_ptr<YogaNodeAndConfig>> children)
+      : node_(std::move(node)),
+        config_(std::move(config)),
+        children_(std::move(children)) {}
+
+  std::shared_ptr<YGNode> node_;
+  std::shared_ptr<const YGConfig> config_;
+  std::vector<std::shared_ptr<YogaNodeAndConfig>> children_;
+};
+
+struct BenchmarkResult {
+  std::chrono::steady_clock::duration treeCreationDuration;
+  std::chrono::steady_clock::duration layoutDuration;
+};
+
+} // namespace facebook::yoga

benchmark/CMakeLists.txt

@@ -3,7 +3,6 @@
 # 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 3.13...3.26)
 project(benchmark)
 set(CMAKE_VERBOSE_MAKEFILE on)
@@ -13,7 +12,16 @@ include(${YOGA_ROOT}/cmake/project-defaults.cmake)
 
 add_subdirectory(${YOGA_ROOT}/yoga ${CMAKE_CURRENT_BINARY_DIR}/yoga)
 
-file(GLOB SOURCES CONFIGURE_DEPENDS
+file(GLOB SOURCES_LEGACY CONFIGURE_DEPENDS
     ${CMAKE_CURRENT_SOURCE_DIR}/*.c)
+file(GLOB SOURCES CONFIGURE_DEPENDS
+    ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
+
 add_executable(benchmark ${SOURCES})
+add_executable(benchmarklegacy ${SOURCES_LEGACY})
+
 target_link_libraries(benchmark yogacore)
+target_link_libraries(benchmarklegacy yogacore)
+target_include_directories(benchmark
+    PRIVATE
+    $<BUILD_INTERFACE:${YOGA_ROOT}/lib>)

benchmark/TreeDeserialization.cpp

@@ -0,0 +1,248 @@
+/*
+ * 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.
+ */
+
+#include <memory>
+#include <vector>
+
+#include <benchmark/TreeDeserialization.h>
+#include <capture/CaptureTree.h>
+#include <nlohmann/json.hpp>
+#include <yoga/Yoga.h>
+
+namespace facebook::yoga {
+
+using namespace nlohmann;
+
+static inline bool isAuto(json& j) {
+  return j.is_string() && j == "auto";
+}
+
+static inline bool isUndefined(json& j) {
+  return j.is_string() && j == "undefined";
+}
+
+static inline std::string invalidArgumentMessage(
+    const std::string& arg,
+    const std::string& enumName) {
+  return arg + " does not represent any " + enumName + " values";
+}
+
+static inline float floatFromJson(json& j) {
+  float result = YGUndefined;
+  if (!j.is_null()) {
+    result = j;
+  }
+
+  return result;
+}
+
+YGFlexDirection flexDirectionFromString(const std::string& str) {
+  if (str == "row") {
+    return YGFlexDirectionRow;
+  } else if (str == "row-reverse") {
+    return YGFlexDirectionRowReverse;
+  } else if (str == "column") {
+    return YGFlexDirectionColumn;
+  } else if (str == "column-reverse") {
+    return YGFlexDirectionColumnReverse;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGFlexDirection"));
+  }
+}
+
+YGJustify justifyContentFromString(const std::string& str) {
+  if (str == "flex-start") {
+    return YGJustifyFlexStart;
+  } else if (str == "center") {
+    return YGJustifyCenter;
+  } else if (str == "flex-end") {
+    return YGJustifyFlexEnd;
+  } else if (str == "space-between") {
+    return YGJustifySpaceBetween;
+  } else if (str == "space-around") {
+    return YGJustifySpaceAround;
+  } else if (str == "space-evenly") {
+    return YGJustifySpaceEvenly;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGJustify"));
+  }
+}
+
+YGAlign alignFromString(const std::string& str) {
+  if (str == "auto") {
+    return YGAlignAuto;
+  } else if (str == "flex-start") {
+    return YGAlignFlexStart;
+  } else if (str == "center") {
+    return YGAlignCenter;
+  } else if (str == "flex-end") {
+    return YGAlignFlexEnd;
+  } else if (str == "stretch") {
+    return YGAlignStretch;
+  } else if (str == "baseline") {
+    return YGAlignBaseline;
+  } else if (str == "space-between") {
+    return YGAlignSpaceBetween;
+  } else if (str == "space-around") {
+    return YGAlignSpaceAround;
+  } else if (str == "space-evenly") {
+    return YGAlignSpaceEvenly;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGAlign"));
+  }
+}
+
+YGWrap wrapFromString(const std::string& str) {
+  if (str == "no-wrap") {
+    return YGWrapNoWrap;
+  } else if (str == "wrap") {
+    return YGWrapWrap;
+  } else if (str == "wrap-reverse") {
+    return YGWrapWrapReverse;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGAlign"));
+  }
+}
+
+YGOverflow overflowFromString(const std::string& str) {
+  if (str == "visible") {
+    return YGOverflowVisible;
+  } else if (str == "hidden") {
+    return YGOverflowHidden;
+  } else if (str == "scroll") {
+    return YGOverflowScroll;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGAlign"));
+  }
+}
+
+YGDisplay displayFromString(const std::string& str) {
+  if (str == "flex") {
+    return YGDisplayFlex;
+  } else if (str == "none") {
+    return YGDisplayNone;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGAlign"));
+  }
+}
+
+YGPositionType positionTypeFromString(const std::string& str) {
+  if (str == "static") {
+    return YGPositionTypeStatic;
+  } else if (str == "relative") {
+    return YGPositionTypeRelative;
+  } else if (str == "absolute") {
+    return YGPositionTypeAbsolute;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGAlign"));
+  }
+}
+
+YGUnit unitFromJson(json& j) {
+  if (isAuto(j)) {
+    return YGUnitAuto;
+  }
+  if (isUndefined(j)) {
+    return YGUnitUndefined;
+  }
+
+  std::string unit = j["unit"];
+  if (unit == "px") {
+    return YGUnitPoint;
+  } else if (unit == "pct") {
+    return YGUnitPercent;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(unit, "YGUnit"));
+  }
+}
+
+YGEdge edgeFromString(const std::string& str) {
+  if (str == "left") {
+    return YGEdgeLeft;
+  } else if (str == "top") {
+    return YGEdgeTop;
+  } else if (str == "right") {
+    return YGEdgeRight;
+  } else if (str == "bottom") {
+    return YGEdgeBottom;
+  } else if (str == "start") {
+    return YGEdgeStart;
+  } else if (str == "end") {
+    return YGEdgeEnd;
+  } else if (str == "horizontal") {
+    return YGEdgeHorizontal;
+  } else if (str == "vertical") {
+    return YGEdgeVertical;
+  } else if (str == "all") {
+    return YGEdgeAll;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGEdge"));
+  }
+}
+
+YGErrata errataFromString(const std::string& str) {
+  if (str == "none") {
+    return YGErrataNone;
+  } else if (str == "all") {
+    return YGErrataAll;
+  } else if (str == "classic") {
+    return YGErrataClassic;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGErrata"));
+  }
+}
+
+YGExperimentalFeature experimentalFeatureFromString(const std::string& str) {
+  if (str == "web-flex-basis") {
+    return YGExperimentalFeatureWebFlexBasis;
+  } else {
+    throw std::invalid_argument(
+        invalidArgumentMessage(str, "YGExperimentalFeature"));
+  }
+}
+
+std::string edgeStringFromPropertyName(
+    const json::iterator& it,
+    const std::string& propertyName) {
+  return it.key().substr(propertyName.length() + 1);
+}
+
+YGDirection directionFromString(const std::string& str) {
+  if (str == "ltr") {
+    return YGDirectionLTR;
+  } else if (str == "rtl") {
+    return YGDirectionRTL;
+  } else if (str == "inherit") {
+    return YGDirectionInherit;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGDirection"));
+  }
+}
+
+YGMeasureMode measureModeFromString(const std::string& str) {
+  if (str == "at-most") {
+    return YGMeasureModeAtMost;
+  } else if (str == "exactly") {
+    return YGMeasureModeExactly;
+  } else if (str == "undefined") {
+    return YGMeasureModeUndefined;
+  } else {
+    throw std::invalid_argument(invalidArgumentMessage(str, "YGMeasureMode"));
+  }
+}
+
+SerializedMeasureFunc serializedMeasureFuncFromJson(json& j) {
+  return SerializedMeasureFunc{
+      floatFromJson(j["width"]),
+      measureModeFromString(j["width-mode"]),
+      floatFromJson(j["height"]),
+      measureModeFromString(j["height-mode"]),
+      floatFromJson(j["output-width"]),
+      floatFromJson(j["output-height"]),
+      j["duration-ns"]};
+}
+} // namespace facebook::yoga

benchmark/TreeDeserialization.h

@@ -0,0 +1,52 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <memory>
+#include <vector>
+
+#include <capture/CaptureTree.h>
+#include <nlohmann/json.hpp>
+#include <yoga/Yoga.h>
+
+namespace facebook::yoga {
+
+using namespace nlohmann;
+
+YGFlexDirection flexDirectionFromString(const std::string& str);
+
+YGJustify justifyContentFromString(const std::string& str);
+
+YGAlign alignFromString(const std::string& str);
+
+YGWrap wrapFromString(const std::string& str);
+
+YGOverflow overflowFromString(const std::string& str);
+
+YGDisplay displayFromString(const std::string& str);
+
+YGPositionType positionTypeFromString(const std::string& str);
+
+YGUnit unitFromJson(json& j);
+
+YGEdge edgeFromString(const std::string& str);
+
+YGErrata errataFromString(const std::string& str);
+
+YGExperimentalFeature experimentalFeatureFromString(const std::string& str);
+
+std::string edgeStringFromPropertyName(
+    const json::iterator& it,
+    const std::string& propertyName);
+
+YGDirection directionFromString(const std::string& str);
+
+YGMeasureMode measureModeFromString(const std::string& str);
+
+SerializedMeasureFunc serializedMeasureFuncFromJson(json& j);
+} // namespace facebook::yoga

benchmark/YGBenchmark.c

@@ -17,8 +17,8 @@
 
 #define YGBENCHMARKS(BLOCK)                \
   int main(int argc, char const* argv[]) { \
-    (void) argc;                           \
-    (void) argv;                           \
+    (void)argc;                            \
+    (void)argv;                            \
     clock_t __start;                       \
     clock_t __endTimes[NUM_REPETITIONS];   \
     { BLOCK }                              \
@@ -33,8 +33,8 @@
   __printBenchmarkResult(NAME, __start, __endTimes);
 
 static int __compareDoubles(const void* a, const void* b) {
-  double arg1 = *(const double*) a;
-  double arg2 = *(const double*) b;
+  double arg1 = *(const double*)a;
+  double arg2 = *(const double*)b;
 
   if (arg1 < arg2) {
     return -1;
@@ -47,15 +47,14 @@ static int __compareDoubles(const void* a, const void* b) {
   return 0;
 }
 
-static void __printBenchmarkResult(
-    char* name,
-    clock_t start,
-    clock_t* endTimes) {
+static void
+__printBenchmarkResult(char* name, clock_t start, clock_t* endTimes) {
   double timesInMs[NUM_REPETITIONS];
   double mean = 0;
   clock_t lastEnd = start;
   for (uint32_t i = 0; i < NUM_REPETITIONS; i++) {
-    timesInMs[i] = (endTimes[i] - lastEnd) / (double) CLOCKS_PER_SEC * 1000;
+    timesInMs[i] =
+        ((double)(endTimes[i] - lastEnd)) / (double)CLOCKS_PER_SEC * 1000;
     lastEnd = endTimes[i];
     mean += timesInMs[i];
   }
@@ -75,12 +74,12 @@ static void __printBenchmarkResult(
 }
 
 static YGSize _measure(
-    YGNodeRef node,
+    YGNodeConstRef node,
     float width,
     YGMeasureMode widthMode,
     float height,
     YGMeasureMode heightMode) {
-  (void) node;
+  (void)node;
   return (YGSize){
       .width = widthMode == YGMeasureModeUndefined ? 10 : width,
       .height = heightMode == YGMeasureModeUndefined ? 10 : height,

benchmark/benchmark

@@ -0,0 +1,15 @@
+#!/bin/sh
+# 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.
+cd "$(dirname "$0")" || exit
+CAPTURES_PATH="$(dirname "$(realpath "$0")")""/captures"
+
+if [ "$1" = "buck" ]; then
+  buck run @//fbcode/mode/opt :benchmarkCXX "${CAPTURES_PATH}"
+else
+  cmake -B build -S . -D CMAKE_BUILD_TYPE=Release
+  cmake --build build
+  build/benchmark "${CAPTURES_PATH}"
+fi

build.gradle

@@ -6,9 +6,10 @@
  */
 
 plugins {
-    id("com.android.library") version "8.0.1" apply false
-    id("com.android.application") version "8.0.1" apply false
+    id("com.android.library") version "8.7.1" apply false
+    id("com.android.application") version "8.7.1" apply false
     id("io.github.gradle-nexus.publish-plugin") version "1.3.0"
+    id 'org.jetbrains.kotlin.android' version '2.1.20' apply false
 }
 
 allprojects {
@@ -34,20 +35,12 @@ nexusPublishing {
         sonatype {
             username.set(sonatypeUsername)
             password.set(sonatypePassword)
+            nexusUrl.set(uri("https://ossrh-staging-api.central.sonatype.com/service/local/"))
+            snapshotRepositoryUrl.set(uri("https://central.sonatype.com/repository/maven-snapshots/"))
         }
     }
 }
 
-ext {
-    buildToolsVersion = "33.0.0"
-    ndkVersion = "23.1.7779620"
-    minSdkVersion = 21
-    compileSdkVersion = 33
-    targetSdkVersion = 33
-    sourceCompatibilityVersion = JavaVersion.VERSION_1_8
-    targetCompatibilityVersion = JavaVersion.VERSION_1_8
-}
-
 task clean(type: Delete) {
     delete rootProject.buildDir
 }

build_fuzz_tests

@@ -0,0 +1,28 @@
+#!/usr/bin/env sh
+# 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.
+
+if [ "$#" -eq 0 ]; then
+  build_type="Debug"
+else
+  build_type="$1"
+fi
+
+export CC=clang
+export CXX=clang++
+
+# Make sure libc++ isn't used, as libfuzzer is linked against stdlibc++ which causes conflicts
+unset CXXFLAGS
+export LDFLAGS=-lstdc++
+
+if which ninja; then
+  set -e
+  cmake -B build -S . -D BUILD_FUZZ_TESTS=ON -D CMAKE_BUILD_TYPE="$build_type" -G Ninja
+else
+  set -e
+  cmake -B build -S . -D BUILD_FUZZ_TESTS=ON -D CMAKE_BUILD_TYPE="$build_type"
+fi
+
+cmake --build build --target fuzz_layout

capture/CMakeLists.txt

@@ -0,0 +1,23 @@
+# 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.
+
+cmake_minimum_required(VERSION 3.13...3.26)
+project(capture)
+set(CMAKE_VERBOSE_MAKEFILE on)
+
+set(YOGA_ROOT ${CMAKE_CURRENT_SOURCE_DIR}/..)
+include(${YOGA_ROOT}/cmake/project-defaults.cmake)
+
+add_subdirectory(${YOGA_ROOT}/yoga ${CMAKE_CURRENT_BINARY_DIR}/yoga)
+
+file(GLOB SOURCES CONFIGURE_DEPENDS
+    ${CMAKE_CURRENT_SOURCE_DIR}/*.cpp)
+add_library(capture STATIC ${SOURCES})
+
+target_link_libraries(capture yogacore)
+target_include_directories(capture
+    PUBLIC
+    $<BUILD_INTERFACE:${YOGA_ROOT}/lib>
+    $<INSTALL_INTERFACE:${CMAKE_INSTALL_PREFIX}/include/yoga/lib>)

capture/CaptureTree.cpp

@@ -0,0 +1,100 @@
+/*
+ * 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.
+ */
+
+#include <cassert>
+#include <fstream>
+
+#include <capture/CaptureTree.h>
+#include <capture/NodeToString.h>
+#include <nlohmann/json.hpp>
+
+namespace facebook::yoga {
+
+using namespace nlohmann;
+
+static void captureTree(
+    std::string_view serializedTree,
+    const std::filesystem::path& path) {
+  std::ofstream file(path);
+  file << serializedTree;
+}
+
+static SerializedMeasureFuncMap& currentSerializedMeasureFuncMap() {
+  static thread_local SerializedMeasureFuncMap map{};
+  return map;
+}
+
+/*
+ * Capturing a tree often means that we capturing multiple serial layouts over
+ * the course of the capture. Because of this, we need to make sure that we do
+ * a full layout pass with no caching. If we do not do this there is a chance
+ * we do not capture measure functions that were called and cached in previous
+ * layouts. Missing these captures would lead to inaccurate benchmarking where
+ * we do not have cached state.
+ *
+ * TODO: Dirty entire tree not just measure function nodes
+ */
+static void dirtyTree(YGNodeRef node) {
+  if (YGNodeHasMeasureFunc(node)) {
+    YGNodeMarkDirty(node);
+  }
+
+  const size_t childCount = YGNodeGetChildCount(node);
+  for (size_t i = 0; i < childCount; i++) {
+    dirtyTree(YGNodeGetChild(node, i));
+  }
+}
+
+void YGNodeCalculateLayoutWithCapture(
+    YGNodeRef node,
+    float availableWidth,
+    float availableHeight,
+    YGDirection ownerDirection,
+    const std::filesystem::path& path) {
+  dirtyTree(node);
+  YGNodeCalculateLayout(node, availableWidth, availableHeight, ownerDirection);
+
+  json j;
+  serializeLayoutInputs(j, availableWidth, availableHeight, ownerDirection);
+  serializeTree(
+      j,
+      currentSerializedMeasureFuncMap(),
+      node,
+      PrintOptions::Style | PrintOptions::Children | PrintOptions::Config |
+          PrintOptions::Node);
+  // TODO: It is possible to have a measure function call layout again if, e.g.,
+  // views are nested in text. Need to be able to resolve this special case.
+  currentSerializedMeasureFuncMap().clear();
+  captureTree(j.dump(2), path);
+}
+
+void captureMeasureFunc(
+    YGNodeConstRef node,
+    float width,
+    YGMeasureMode widthMode,
+    float height,
+    YGMeasureMode heightMode,
+    YGSize output,
+    std::chrono::steady_clock::duration durationNs) {
+  auto measureFuncIt = currentSerializedMeasureFuncMap().find(node);
+  if (measureFuncIt == currentSerializedMeasureFuncMap().end()) {
+    std::vector<SerializedMeasureFunc> vec{};
+    currentSerializedMeasureFuncMap().insert(std::make_pair(node, vec));
+  }
+  measureFuncIt = currentSerializedMeasureFuncMap().find(node);
+  assert(measureFuncIt != currentSerializedMeasureFuncMap().end());
+  measureFuncIt->second.push_back(
+      {width,
+       widthMode,
+       height,
+       heightMode,
+       output.width,
+       output.height,
+       durationNs.count()});
+}
+
+} // namespace facebook::yoga

capture/CaptureTree.h

@@ -0,0 +1,47 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <filesystem>
+#include <unordered_map>
+#include <vector>
+
+#include <yoga/Yoga.h>
+
+namespace facebook::yoga {
+
+struct SerializedMeasureFunc {
+  float inputWidth{0.0f};
+  YGMeasureMode widthMode{YGMeasureModeUndefined};
+  float inputHeight{0.0};
+  YGMeasureMode heightMode{YGMeasureModeUndefined};
+  float outputWidth{0.0f};
+  float outputHeight{0.0f};
+  std::chrono::steady_clock::duration::rep durationNs{};
+};
+
+using SerializedMeasureFuncMap =
+    std::unordered_map<YGNodeConstRef, std::vector<SerializedMeasureFunc>>;
+
+void YGNodeCalculateLayoutWithCapture(
+    YGNodeRef node,
+    float availableWidth,
+    float availableHeight,
+    YGDirection ownerDirection,
+    const std::filesystem::path& path);
+
+void captureMeasureFunc(
+    YGNodeConstRef node,
+    float width,
+    YGMeasureMode widthMode,
+    float height,
+    YGMeasureMode heightMode,
+    YGSize output,
+    std::chrono::steady_clock::duration durationNs);
+
+} // namespace facebook::yoga

capture/NodeToString.cpp

@@ -0,0 +1,359 @@
+/*
+ * 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.
+ */
+
+#include <memory>
+#include <vector>
+
+#include <capture/NodeToString.h>
+
+namespace facebook::yoga {
+
+using namespace nlohmann;
+
+static void appendFloatIfNotDefault(
+    json& j,
+    std::string_view key,
+    float num,
+    float defaultNum) {
+  if (num != defaultNum && !YGFloatIsUndefined(num)) {
+    j[key] = num;
+  }
+}
+
+static void appendYGValueIfNotDefault(
+    json& j,
+    std::string_view key,
+    const YGValue& value,
+    const YGValue& defaultValue) {
+  if (value != defaultValue) {
+    if (value.unit == YGUnitAuto) {
+      j[key] = "auto";
+    } else if (value.unit == YGUnitUndefined) {
+      j[key] = "undefined";
+    } else {
+      std::string unit = value.unit == YGUnitPoint ? "px" : "pct";
+      j[key]["value"] = value.value;
+      j[key]["unit"] = unit;
+    }
+  }
+}
+
+static void appendEnumValueIfNotDefault(
+    json& j,
+    std::string_view key,
+    std::string_view value,
+    std::string_view defaultValue) {
+  if (value != defaultValue) {
+    j[key] = value;
+  }
+}
+
+static void appendBoolIfNotDefault(
+    json& j,
+    std::string_view key,
+    bool value,
+    bool defaultValue) {
+  if (value != defaultValue) {
+    j[key] = value;
+  }
+}
+
+template <auto Field>
+static void appendEdges(
+    json& j,
+    const std::string& key,
+    YGNodeRef node,
+    YGNodeRef defaultNode) {
+  appendYGValueIfNotDefault(
+      j["style"],
+      key + "-left",
+      (*Field)(node, YGEdgeLeft),
+      (*Field)(defaultNode, YGEdgeLeft));
+  appendYGValueIfNotDefault(
+      j["style"],
+      key + "-right",
+      (*Field)(node, YGEdgeRight),
+      (*Field)(defaultNode, YGEdgeRight));
+  appendYGValueIfNotDefault(
+      j["style"],
+      key + "-top",
+      (*Field)(node, YGEdgeTop),
+      (*Field)(defaultNode, YGEdgeTop));
+  appendYGValueIfNotDefault(
+      j["style"],
+      key + "-bottom",
+      (*Field)(node, YGEdgeBottom),
+      (*Field)(defaultNode, YGEdgeBottom));
+  appendYGValueIfNotDefault(
+      j["style"],
+      key + "-all",
+      (*Field)(node, YGEdgeAll),
+      (*Field)(defaultNode, YGEdgeAll));
+  appendYGValueIfNotDefault(
+      j["style"],
+      key + "-start",
+      (*Field)(node, YGEdgeStart),
+      (*Field)(defaultNode, YGEdgeStart));
+  appendYGValueIfNotDefault(
+      j["style"],
+      key + "-end",
+      (*Field)(node, YGEdgeEnd),
+      (*Field)(defaultNode, YGEdgeEnd));
+  appendYGValueIfNotDefault(
+      j["style"],
+      key + "-vertical",
+      (*Field)(node, YGEdgeVertical),
+      (*Field)(defaultNode, YGEdgeVertical));
+  appendYGValueIfNotDefault(
+      j["style"],
+      key + "-horizontal",
+      (*Field)(node, YGEdgeHorizontal),
+      (*Field)(defaultNode, YGEdgeHorizontal));
+}
+
+static YGValue borderFloatToYGValue(YGNodeRef node, YGEdge edge) {
+  float val = YGNodeStyleGetBorder(node, edge);
+  YGUnit unit = YGFloatIsUndefined(val) ? YGUnitUndefined : YGUnitPoint;
+  return YGValue{val, unit};
+}
+
+static void serializeMeasureFuncResults(
+    json& j,
+    std::vector<SerializedMeasureFunc>& measureFuncs) {
+  for (auto measureFunc : measureFuncs) {
+    j["measure-funcs"].push_back(
+        {{"width", measureFunc.inputWidth},
+         {"width-mode", YGMeasureModeToString(measureFunc.widthMode)},
+         {"height", measureFunc.inputHeight},
+         {"height-mode", YGMeasureModeToString(measureFunc.heightMode)},
+         {"output-width", measureFunc.outputWidth},
+         {"output-height", measureFunc.outputHeight},
+         {"duration-ns", measureFunc.durationNs}});
+  }
+}
+
+static void serializeTreeImpl(
+    json& j,
+    SerializedMeasureFuncMap& nodesToMeasureFuncs,
+    YGNodeRef node,
+    PrintOptions options) {
+  if ((options & PrintOptions::Layout) == PrintOptions::Layout) {
+    j["layout"]["width"] = YGNodeStyleGetWidth(node).value;
+    j["layout"]["height"] = YGNodeStyleGetHeight(node).value;
+    j["layout"]["top"] = YGNodeStyleGetPosition(node, YGEdgeTop).value;
+    j["layout"]["left"] = YGNodeStyleGetPosition(node, YGEdgeLeft).value;
+  }
+  std::unique_ptr<YGNode, decltype(&YGNodeFree)> defaultNode(
+      YGNodeNew(), YGNodeFree);
+
+  if ((options & PrintOptions::Style) == PrintOptions::Style) {
+    appendEnumValueIfNotDefault(
+        j["style"],
+        "flex-direction",
+        YGFlexDirectionToString(YGNodeStyleGetFlexDirection(node)),
+        YGFlexDirectionToString(
+            YGNodeStyleGetFlexDirection(defaultNode.get())));
+    appendEnumValueIfNotDefault(
+        j["style"],
+        "justify-content",
+        YGJustifyToString(YGNodeStyleGetJustifyContent(node)),
+        YGJustifyToString(YGNodeStyleGetJustifyContent(defaultNode.get())));
+    appendEnumValueIfNotDefault(
+        j["style"],
+        "align-items",
+        YGAlignToString(YGNodeStyleGetAlignItems(node)),
+        YGAlignToString(YGNodeStyleGetAlignItems(defaultNode.get())));
+    appendEnumValueIfNotDefault(
+        j["style"],
+        "align-content",
+        YGAlignToString(YGNodeStyleGetAlignContent(node)),
+        YGAlignToString(YGNodeStyleGetAlignContent(defaultNode.get())));
+    appendEnumValueIfNotDefault(
+        j["style"],
+        "align-self",
+        YGAlignToString(YGNodeStyleGetAlignSelf(node)),
+        YGAlignToString(YGNodeStyleGetAlignSelf(defaultNode.get())));
+    appendEnumValueIfNotDefault(
+        j["style"],
+        "flex-wrap",
+        YGWrapToString(YGNodeStyleGetFlexWrap(node)),
+        YGWrapToString(YGNodeStyleGetFlexWrap(defaultNode.get())));
+    appendEnumValueIfNotDefault(
+        j["style"],
+        "overflow",
+        YGOverflowToString(YGNodeStyleGetOverflow(node)),
+        YGOverflowToString(YGNodeStyleGetOverflow(defaultNode.get())));
+    appendEnumValueIfNotDefault(
+        j["style"],
+        "display",
+        YGDisplayToString(YGNodeStyleGetDisplay(node)),
+        YGDisplayToString(YGNodeStyleGetDisplay(defaultNode.get())));
+    appendEnumValueIfNotDefault(
+        j["style"],
+        "position-type",
+        YGPositionTypeToString(YGNodeStyleGetPositionType(node)),
+        YGPositionTypeToString(YGNodeStyleGetPositionType(defaultNode.get())));
+
+    appendFloatIfNotDefault(
+        j["style"],
+        "flex-grow",
+        YGNodeStyleGetFlexGrow(node),
+        YGNodeStyleGetFlexGrow(defaultNode.get()));
+    appendFloatIfNotDefault(
+        j["style"],
+        "flex-shrink",
+        YGNodeStyleGetFlexShrink(node),
+        YGNodeStyleGetFlexShrink(defaultNode.get()));
+    appendFloatIfNotDefault(
+        j["style"],
+        "flex",
+        YGNodeStyleGetFlex(node),
+        YGNodeStyleGetFlex(defaultNode.get()));
+    appendYGValueIfNotDefault(
+        j["style"],
+        "flex-basis",
+        YGNodeStyleGetFlexBasis(node),
+        YGNodeStyleGetFlexBasis(defaultNode.get()));
+
+    appendEdges<&YGNodeStyleGetMargin>(j, "margin", node, defaultNode.get());
+    appendEdges<&YGNodeStyleGetPadding>(j, "padding", node, defaultNode.get());
+    appendEdges<&borderFloatToYGValue>(j, "border", node, defaultNode.get());
+    appendEdges<&YGNodeStyleGetPosition>(
+        j, "position", node, defaultNode.get());
+
+    appendYGValueIfNotDefault(
+        j["style"],
+        "gap",
+        YGNodeStyleGetGap(node, YGGutterAll),
+        YGNodeStyleGetGap(defaultNode.get(), YGGutterAll));
+    appendYGValueIfNotDefault(
+        j["style"],
+        "column-gap",
+        YGNodeStyleGetGap(node, YGGutterColumn),
+        YGNodeStyleGetGap(defaultNode.get(), YGGutterColumn));
+    appendYGValueIfNotDefault(
+        j["style"],
+        "row-gap",
+        YGNodeStyleGetGap(node, YGGutterRow),
+        YGNodeStyleGetGap(defaultNode.get(), YGGutterRow));
+
+    appendYGValueIfNotDefault(
+        j["style"],
+        "width",
+        YGNodeStyleGetWidth(node),
+        YGNodeStyleGetWidth(defaultNode.get()));
+    appendYGValueIfNotDefault(
+        j["style"],
+        "height",
+        YGNodeStyleGetHeight(node),
+        YGNodeStyleGetHeight(defaultNode.get()));
+    appendYGValueIfNotDefault(
+        j["style"],
+        "max-width",
+        YGNodeStyleGetMaxWidth(node),
+        YGNodeStyleGetMaxWidth(defaultNode.get()));
+    appendYGValueIfNotDefault(
+        j["style"],
+        "max-height",
+        YGNodeStyleGetMaxHeight(node),
+        YGNodeStyleGetMaxHeight(defaultNode.get()));
+    appendYGValueIfNotDefault(
+        j["style"],
+        "min-width",
+        YGNodeStyleGetMinWidth(node),
+        YGNodeStyleGetMinWidth(defaultNode.get()));
+    appendYGValueIfNotDefault(
+        j["style"],
+        "min-height",
+        YGNodeStyleGetMinHeight(node),
+        YGNodeStyleGetMinHeight(defaultNode.get()));
+  }
+
+  if ((options & PrintOptions::Config) == PrintOptions::Config) {
+    YGConfigConstRef config = YGNodeGetConfig(node);
+    YGConfigConstRef defaultConfig = YGConfigGetDefault();
+
+    appendBoolIfNotDefault(
+        j["config"],
+        "use-web-defaults",
+        YGConfigGetUseWebDefaults(config),
+        YGConfigGetUseWebDefaults(defaultConfig));
+    appendFloatIfNotDefault(
+        j["config"],
+        "point-scale-factor",
+        YGConfigGetPointScaleFactor(config),
+        YGConfigGetPointScaleFactor(defaultConfig));
+    YGErrata errata = YGConfigGetErrata(config);
+    if (errata == YGErrataNone || errata == YGErrataAll ||
+        errata == YGErrataClassic) {
+      appendEnumValueIfNotDefault(
+          j["config"],
+          "errata",
+          YGErrataToString(errata),
+          YGErrataToString(YGConfigGetErrata(defaultConfig)));
+    }
+
+    if (YGConfigIsExperimentalFeatureEnabled(
+            config, YGExperimentalFeatureWebFlexBasis) !=
+        YGConfigIsExperimentalFeatureEnabled(
+            defaultConfig, YGExperimentalFeatureWebFlexBasis)) {
+      j["config"]["experimental-features"].push_back(
+          YGExperimentalFeatureToString(YGExperimentalFeatureWebFlexBasis));
+    }
+  }
+
+  if ((options & PrintOptions::Node) == PrintOptions::Node) {
+    appendBoolIfNotDefault(
+        j["node"],
+        "always-forms-containing-block",
+        YGNodeGetAlwaysFormsContainingBlock(node),
+        YGNodeGetAlwaysFormsContainingBlock(defaultNode.get()));
+    if (YGNodeHasMeasureFunc(node)) {
+      auto measureFuncIt = nodesToMeasureFuncs.find(node);
+      if (measureFuncIt == nodesToMeasureFuncs.end()) {
+        j["node"]["measure-funcs"];
+      } else {
+        serializeMeasureFuncResults(j["node"], measureFuncIt->second);
+      }
+    }
+  }
+
+  const size_t childCount = YGNodeGetChildCount(node);
+  if ((options & PrintOptions::Children) == PrintOptions::Children &&
+      childCount > 0) {
+    for (size_t i = 0; i < childCount; i++) {
+      j["children"].push_back({});
+      serializeTreeImpl(
+          j["children"][i],
+          nodesToMeasureFuncs,
+          YGNodeGetChild(node, i),
+          options);
+    }
+  }
+}
+
+void serializeTree(
+    json& j,
+    SerializedMeasureFuncMap& nodesToMeasureFuncs,
+    YGNodeRef node,
+    PrintOptions options) {
+  serializeTreeImpl(j["tree"], nodesToMeasureFuncs, node, options);
+}
+
+void serializeLayoutInputs(
+    json& j,
+    float availableWidth,
+    float availableHeight,
+    YGDirection ownerDirection) {
+  j["layout-inputs"] = {
+      {"available-width", availableWidth},
+      {"available-height", availableHeight},
+      {"owner-direction", YGDirectionToString(ownerDirection)},
+  };
+}
+
+} // namespace facebook::yoga

capture/NodeToString.h

@@ -0,0 +1,40 @@
+/*
+ * 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.
+ */
+
+#pragma once
+
+#include <chrono>
+#include <string>
+
+#include <capture/CaptureTree.h>
+#include <nlohmann/json.hpp>
+#include <yoga/Yoga.h>
+
+namespace facebook::yoga {
+
+enum class PrintOptions : uint8_t {
+  Layout = 1 << 0,
+  Children = 1 << 1,
+  Style = 1 << 2,
+  Config = 1 << 3,
+  Node = 1 << 4,
+};
+YG_DEFINE_ENUM_FLAG_OPERATORS(PrintOptions);
+
+void serializeTree(
+    nlohmann::json& j,
+    SerializedMeasureFuncMap& nodesToMeasureFuncs,
+    YGNodeRef node,
+    PrintOptions options);
+
+void serializeLayoutInputs(
+    nlohmann::json& j,
+    float availableWidth,
+    float availableHeight,
+    YGDirection ownerDirection);
+
+} // namespace facebook::yoga

cmake/project-defaults.cmake

@@ -3,7 +3,7 @@
 # This source code is licensed under the MIT license found in the
 # LICENSE file in the root directory of this source tree.
 
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_VISIBILITY_PRESET hidden)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
 
@@ -17,10 +17,10 @@ add_compile_options(
     # "Standard C++ exception handling" (C++ stack unwinding including extern c)
     /EHsc
     # Enable warnings and warnings as errors
-    /W3
+    /W4
     /WX
-    # Disable RTTI
-    $<$<COMPILE_LANGUAGE:CXX>:/GR->
+    # Enable RTTI
+    $<$<COMPILE_LANGUAGE:CXX>:/GR>
     # Use /O2 (Maximize Speed)
     $<$<CONFIG:RELEASE>:/O2>)
 
@@ -33,10 +33,9 @@ add_compile_options(
     -fexceptions
     # Enable warnings and warnings as errors
     -Wall
-    -Wextra
     -Werror
-    # Disable RTTI
-    $<$<COMPILE_LANGUAGE:CXX>:-fno-rtti>
+    # Enable RTTI
+    $<$<COMPILE_LANGUAGE:CXX>:-frtti>
     # Use -O2 (prioritize speed)
     $<$<CONFIG:RELEASE>:-O2>
     # Enable separate sections per function/data item

enums.py

@@ -8,7 +8,15 @@ import os
 
 ENUMS = {
     "Direction": ["Inherit", "LTR", "RTL"],
-    "Unit": ["Undefined", "Point", "Percent", "Auto"],
+    "Unit": [
+        "Undefined",
+        "Point",
+        "Percent",
+        "Auto",
+        "MaxContent",
+        "FitContent",
+        "Stretch",
+    ],
     "FlexDirection": ["Column", "ColumnReverse", "Row", "RowReverse"],
     "Justify": [
         "FlexStart",
@@ -28,10 +36,12 @@ ENUMS = {
         "Baseline",
         "SpaceBetween",
         "SpaceAround",
+        "SpaceEvenly",
     ],
     "PositionType": ["Static", "Relative", "Absolute"],
-    "Display": ["Flex", "None"],
+    "Display": ["Flex", "None", "Contents"],
     "Wrap": ["NoWrap", "Wrap", "WrapReverse"],
+    "BoxSizing": ["BorderBox", "ContentBox"],
     "MeasureMode": ["Undefined", "Exactly", "AtMost"],
     "Dimension": ["Width", "Height"],
     "Edge": [
@@ -50,15 +60,6 @@ ENUMS = {
     "ExperimentalFeature": [
         # Mimic web flex-basis behavior (experiment may be broken)
         "WebFlexBasis",
-        # Conformance fix: https://github.com/facebook/yoga/pull/1028
-        "AbsolutePercentageAgainstPaddingEdge",
-        # fix JNI local ref overflows
-        "FixJNILocalRefOverflows",
-    ],
-    "PrintOptions": [
-        ("Layout", 1 << 0),
-        ("Style", 1 << 1),
-        ("Children", 1 << 2),
     ],
     "Gutter": ["Column", "Row", "All"],
     # Known incorrect behavior which can be enabled for compatibility
@@ -68,6 +69,13 @@ ENUMS = {
         # Allows main-axis flex basis to be stretched without flexGrow being
         # set (previously referred to as "UseLegacyStretchBehaviour")
         ("StretchFlexBasis", 1 << 0),
+        # Absolute position in a given axis will be relative to the padding
+        # edge of the parent container instead of the content edge when a
+        # specific inset (top/bottom/left/right) is not set.
+        ("AbsolutePositionWithoutInsetsExcludesPadding", 1 << 1),
+        # Absolute nodes will resolve percentages against the inner size of
+        # their containing node, not the padding box
+        ("AbsolutePercentAgainstInnerSize", 1 << 2),
         # Enable all incorrect behavior (preserve compatibility)
         ("All", 0x7FFFFFFF),
         # Enable all errata except for "StretchFlexBasis" (Defaults behavior
@@ -78,7 +86,7 @@ ENUMS = {
 
 DO_NOT_STRIP = ["LogLevel"]
 
-BITSET_ENUMS = ["PrintOptions", "Errata"]
+BITSET_ENUMS = ["Errata"]
 
 
 def get_license(ext):
@@ -90,7 +98,7 @@ def get_license(ext):
  */
 
 // @{"generated"} by enums.py
-
+{"// clang-format off" if ext == "cpp" else ""}
 """
 
 
@@ -123,15 +131,11 @@ with open(root + "/yoga/YGEnums.h", "w") as f:
     f.write(get_license("cpp"))
     f.write("#pragma once\n")
     f.write("#include <yoga/YGMacros.h>\n\n")
-    f.write("// clang-format off\n\n\n")
 
     f.write("YG_EXTERN_C_BEGIN\n\n")
     items = sorted(ENUMS.items())
     for name, values in items:
-        if isinstance(values[0], tuple):
-            f.write("YG_ENUM_DECL(\n")
-        else:
-            f.write("YG_ENUM_SEQ_DECL(\n")
+        f.write("YG_ENUM_DECL(\n")
 
         f.write("    YG%s,\n" % name)
         for value in values:
@@ -148,6 +152,47 @@ with open(root + "/yoga/YGEnums.h", "w") as f:
         f.write("\n")
     f.write("YG_EXTERN_C_END\n")
 
+# Write out C++ scoped enums
+for name, values in sorted(ENUMS.items()):
+    with open(f"{root}/yoga/enums/{name}.h", "w") as f:
+        f.write(get_license("cpp"))
+        f.write("#pragma once\n\n")
+
+        f.write("#include <cstdint>\n")
+        f.write("#include <yoga/YGEnums.h>\n")
+        f.write("#include <yoga/enums/YogaEnums.h>\n\n")
+
+        f.write("namespace facebook::yoga {\n\n")
+
+        width = "uint32_t" if name in BITSET_ENUMS else "uint8_t"
+        f.write(f"enum class {name} : {width} {{\n")
+        for value in values:
+            ordinal = value[0] if isinstance(value, tuple) else value
+            f.write(f"  {ordinal} = YG{name}{ordinal},\n")
+        f.write("};\n\n")
+
+        if name in BITSET_ENUMS:
+            f.write(f"YG_DEFINE_ENUM_FLAG_OPERATORS({name})\n\n")
+        else:
+            f.write("template <>\n")
+            f.write(f"constexpr int32_t ordinalCount<{name}>() {{\n")
+            f.write(f"  return {len(values)};\n")
+            f.write("}\n\n")
+
+        f.write(f"constexpr {name} scopedEnum(YG{name} unscoped) {{\n")
+        f.write(f"  return static_cast<{name}>(unscoped);\n")
+        f.write("}\n\n")
+
+        f.write(f"constexpr YG{name} unscopedEnum({name} scoped) {{\n")
+        f.write(f"  return static_cast<YG{name}>(scoped);\n")
+        f.write("}\n\n")
+
+        f.write(f"inline const char* toString({name} e) {{\n")
+        f.write(f"  return YG{name}ToString(unscopedEnum(e));\n")
+        f.write("}\n\n")
+
+        f.write("} // namespace facebook::yoga\n")
+
 # write out C body for printing
 with open(root + "/yoga/YGEnums.cpp", "w") as f:
     f.write(get_license("cpp"))

fuzz/CMakeLists.txt

@@ -0,0 +1,21 @@
+# 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.
+
+# If google/oss-fuzz has set the fuzzing engine
+if(DEFINED ENV{LIB_FUZZING_ENGINE})
+    set(FUZZING_ENGINE $ENV{LIB_FUZZING_ENGINE})
+    set(FUZZING_COMPILE_FLAGS "")
+    set(FUZZING_LINK_FLAGS "${FUZZING_ENGINE}")
+else()
+    set(FUZZING_COMPILE_FLAGS "-fsanitize=fuzzer")
+    set(FUZZING_LINK_FLAGS "-fsanitize=fuzzer")
+endif()
+
+add_executable(fuzz_layout FuzzLayout.cpp)
+set_target_properties(fuzz_layout PROPERTIES
+    COMPILE_FLAGS "${FUZZING_COMPILE_FLAGS}"
+    LINK_FLAGS "${FUZZING_LINK_FLAGS}"
+)
+target_link_libraries(fuzz_layout yogacore)

fuzz/FuzzLayout.cpp

@@ -0,0 +1,57 @@
+/*
+ * 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.
+ */
+
+#include <fuzzer/FuzzedDataProvider.h>
+#include <yoga/Yoga.h>
+#include <cstdint>
+
+YGFlexDirection fuzzedFlexDirection(FuzzedDataProvider& fdp) {
+  return fdp.PickValueInArray({
+      YGFlexDirectionColumn,
+      YGFlexDirectionColumnReverse,
+      YGFlexDirectionRow,
+      YGFlexDirectionRowReverse,
+  });
+}
+
+void fillFuzzedTree(
+    FuzzedDataProvider& fdp,
+    YGConfigConstRef config,
+    YGNodeRef root,
+    size_t depth = 0) {
+  constexpr size_t kMaxDepth = 20;
+  constexpr size_t kMaxChildren = 20;
+
+  if (depth > kMaxDepth) {
+    return;
+  }
+
+  size_t children = fdp.ConsumeIntegralInRange<size_t>(0, kMaxChildren);
+  for (size_t i = 0; i < children; i++) {
+    YGNodeRef child = YGNodeNewWithConfig(config);
+    YGNodeStyleSetFlexDirection(root, fuzzedFlexDirection(fdp));
+    YGNodeStyleSetWidth(child, fdp.ConsumeFloatingPoint<float>());
+    YGNodeStyleSetGap(
+        child, YGGutterAll, fdp.ConsumeProbability<float>() * 100);
+    YGNodeStyleSetHeight(child, fdp.ConsumeFloatingPoint<float>());
+    YGNodeInsertChild(root, child, i);
+    fillFuzzedTree(fdp, config, child, depth + 1);
+  }
+}
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  FuzzedDataProvider fdp(data, size);
+  YGConfigRef config = YGConfigNew();
+  YGNodeRef root = YGNodeNewWithConfig(config);
+  fillFuzzedTree(fdp, config, root);
+
+  YGNodeCalculateLayout(root, YGUndefined, YGUndefined, YGDirectionLTR);
+
+  YGNodeFreeRecursive(root);
+  YGConfigFree(config);
+  return 0;
+}

gentest/Gemfile

@@ -1,4 +0,0 @@
-source "https://rubygems.org"
-
-gem 'watir', '~>7.2.0'
-gem 'webdrivers', '~> 5.2.0'

gentest/Gemfile.lock

@@ -1,31 +0,0 @@
-GEM
-  remote: https://rubygems.org/
-  specs:
-    nokogiri (1.15.2-arm64-darwin)
-      racc (~> 1.4)
-    racc (1.7.0)
-    regexp_parser (2.8.1)
-    rexml (3.2.5)
-    rubyzip (2.3.2)
-    selenium-webdriver (4.10.0)
-      rexml (~> 3.2, >= 3.2.5)
-      rubyzip (>= 1.2.2, < 3.0)
-      websocket (~> 1.0)
-    watir (7.2.2)
-      regexp_parser (>= 1.2, < 3)
-      selenium-webdriver (~> 4.2)
-    webdrivers (5.2.0)
-      nokogiri (~> 1.6)
-      rubyzip (>= 1.3.0)
-      selenium-webdriver (~> 4.0)
-    websocket (1.2.9)
-
-PLATFORMS
-  arm64-darwin-22
-
-DEPENDENCIES
-  watir (~> 7.2.0)
-  webdrivers (~> 5.2.0)
-
-BUNDLED WITH
-   2.4.10

gentest/babel.config.cjs

@@ -8,8 +8,5 @@
  */
 
 module.exports = {
-  presets: [
-    ['@babel/preset-env', {targets: 'defaults'}],
-    '@babel/preset-typescript',
-  ],
+  presets: ['@babel/preset-typescript'],
 };

gentest/fixtures/YGAbsolutePositionTest.html

@@ -2,6 +2,18 @@
   <div style="width:10px; height: 10px; position: absolute; start: 10px; top: 10px;"></div>
 </div>
 
+<div id="absolute_layout_width_height_left_auto_right" style="width: 100px; height: 100px">
+  <div style="width: 10px; height: 10px; position: absolute; left: auto; right: 10px;"></div>
+</div>
+
+<div id="absolute_layout_width_height_left_right_auto" style="width: 100px; height: 100px">
+  <div style="width: 10px; height: 10px; position: absolute; left: 10px; right: auto;"></div>
+</div>
+
+<div id="absolute_layout_width_height_left_auto_right_auto" style="width: 100px; height: 100px">
+  <div style="width: 10px; height: 10px; position: absolute; left: auto; right: auto;"></div>
+</div>
+
 <div id="absolute_layout_width_height_end_bottom" style="width: 100px; height: 100px;">
   <div style="width:10px; height: 10px; position: absolute; end: 10px; bottom: 10px;"></div>
 </div>
@@ -14,28 +26,33 @@
   <div style="width:10px; height: 10px; position: absolute; start: 10px; top: 10px; end: 10px; bottom: 10px;"></div>
 </div>
 
-<div id="do_not_clamp_height_of_absolute_node_to_height_of_its_overflow_hidden_parent" style="height: 50px; width: 50px; overflow: hidden; flex-direction: row;">
+<div id="do_not_clamp_height_of_absolute_node_to_height_of_its_overflow_hidden_parent"
+  style="height: 50px; width: 50px; overflow: hidden; flex-direction: row;">
   <div style="position: absolute; start: 0px; top: 0px;">
     <div style="width: 100px; height: 100px;"></div>
   </div>
 </div>
 
-<div id="absolute_layout_within_border" style="height:100px; width:100px; border-width: 10px; margin: 10px; padding: 10px;">
+<div id="absolute_layout_within_border"
+  style="height:100px; width:100px; border-width: 10px; margin: 10px; padding: 10px;">
   <div style="position: absolute; width: 50px; height: 50px; left: 0px; top: 0px;"></div>
   <div style="position: absolute; width: 50px; height: 50px; right: 0px; bottom: 0px;"></div>
   <div style="position: absolute; width: 50px; height: 50px; left: 0px; top: 0px; margin: 10px;"></div>
   <div style="position: absolute; width: 50px; height: 50px; right: 0px; bottom: 0px; margin: 10px;"></div>
 </div>
 
-<div id="absolute_layout_align_items_and_justify_content_center" style="height: 100px; width: 110px; flex-grow: 1; align-items: center; justify-content: center;">
+<div id="absolute_layout_align_items_and_justify_content_center"
+  style="height: 100px; width: 110px; flex-grow: 1; align-items: center; justify-content: center;">
   <div style="position: absolute; width: 60px; height: 40px;"></div>
 </div>
 
-<div id="absolute_layout_align_items_and_justify_content_flex_end" style="height: 100px; width: 110px; flex-grow: 1; align-items: flex-end; justify-content: flex-end;">
+<div id="absolute_layout_align_items_and_justify_content_flex_end"
+  style="height: 100px; width: 110px; flex-grow: 1; align-items: flex-end; justify-content: flex-end;">
   <div style="position: absolute; width: 60px; height: 40px;"></div>
 </div>
 
-<div id="absolute_layout_justify_content_center" style="height: 100px; width: 110px; flex-grow: 1; justify-content: center;">
+<div id="absolute_layout_justify_content_center"
+  style="height: 100px; width: 110px; flex-grow: 1; justify-content: center;">
   <div style="position: absolute; width: 60px; height: 40px;"></div>
 </div>
 
@@ -47,19 +64,23 @@
   <div style="position: absolute; width: 60px; height: 40px;align-self: center;"></div>
 </div>
 
-<div id="absolute_layout_align_items_and_justify_content_center_and_top_position" style="height: 100px; width: 110px; flex-grow: 1; align-items: center; justify-content: center;">
+<div id="absolute_layout_align_items_and_justify_content_center_and_top_position"
+  style="height: 100px; width: 110px; flex-grow: 1; align-items: center; justify-content: center;">
   <div style="position: absolute; width: 60px; height: 40px;top:10px;"></div>
 </div>
 
-<div id="absolute_layout_align_items_and_justify_content_center_and_bottom_position" style="height: 100px; width: 110px; flex-grow: 1; align-items: center; justify-content: center;">
+<div id="absolute_layout_align_items_and_justify_content_center_and_bottom_position"
+  style="height: 100px; width: 110px; flex-grow: 1; align-items: center; justify-content: center;">
   <div style="position: absolute; width: 60px; height: 40px;bottom:10px;"></div>
 </div>
 
-<div id="absolute_layout_align_items_and_justify_content_center_and_left_position" style="height: 100px; width: 110px; flex-grow: 1; align-items: center; justify-content: center;">
+<div id="absolute_layout_align_items_and_justify_content_center_and_left_position"
+  style="height: 100px; width: 110px; flex-grow: 1; align-items: center; justify-content: center;">
   <div style="position: absolute; width: 60px; height: 40px;left:5px;"></div>
 </div>
 
-<div id="absolute_layout_align_items_and_justify_content_center_and_right_position" style="height: 100px; width: 110px; flex-grow: 1; align-items: center; justify-content: center;">
+<div id="absolute_layout_align_items_and_justify_content_center_and_right_position"
+  style="height: 100px; width: 110px; flex-grow: 1; align-items: center; justify-content: center;">
   <div style="position: absolute; width: 60px; height: 40px;right:5px;"></div>
 </div>
 
@@ -67,24 +88,28 @@
 </div>
 
 <div id="absolute_layout_percentage_bottom_based_on_parent_height" style="width: 100px; height: 200px;">
-    <div style="position: absolute; top: 50%; width: 10px; height: 10px;"></div>
-    <div style="position: absolute; bottom: 50%; width: 10px; height: 10px;"></div>
-    <div style="position: absolute; top: 10%; width: 10px; bottom: 10%;"></div>
+  <div style="position: absolute; top: 50%; width: 10px; height: 10px;"></div>
+  <div style="position: absolute; bottom: 50%; width: 10px; height: 10px;"></div>
+  <div style="position: absolute; top: 10%; width: 10px; bottom: 10%;"></div>
 </div>
 
-<div id="absolute_layout_in_wrap_reverse_column_container" style="flex-direction:column; width:100px; height:100px; flex-wrap: wrap-reverse;">
+<div id="absolute_layout_in_wrap_reverse_column_container"
+  style="flex-direction:column; width:100px; height:100px; flex-wrap: wrap-reverse;">
   <div style="width:20px; height:20px; position: absolute;"></div>
 </div>
 
-<div id="absolute_layout_in_wrap_reverse_row_container" style="flex-direction:row; width:100px; height:100px; flex-wrap: wrap-reverse;">
+<div id="absolute_layout_in_wrap_reverse_row_container"
+  style="flex-direction:row; width:100px; height:100px; flex-wrap: wrap-reverse;">
   <div style="width:20px; height:20px; position: absolute;"></div>
 </div>
 
-<div id="absolute_layout_in_wrap_reverse_column_container_flex_end" style="flex-direction:column; width:100px; height:100px; flex-wrap: wrap-reverse;">
+<div id="absolute_layout_in_wrap_reverse_column_container_flex_end"
+  style="flex-direction:column; width:100px; height:100px; flex-wrap: wrap-reverse;">
   <div style="width:20px; height:20px; position: absolute; align-self: flex-end;"></div>
 </div>
 
-<div id="absolute_layout_in_wrap_reverse_row_container_flex_end" style="flex-direction:row; width:100px; height:100px; flex-wrap: wrap-reverse;">
+<div id="absolute_layout_in_wrap_reverse_row_container_flex_end"
+  style="flex-direction:row; width:100px; height:100px; flex-wrap: wrap-reverse;">
   <div style="width:20px; height:20px; position: absolute; align-self: flex-end;"></div>
 </div>
 
@@ -93,10 +118,51 @@
   <div style="width:20%; height:20%; left:20%; top:20%; position: absolute;"></div>
 </div>
 
-<div id="absolute_layout_percentage_height_based_on_padded_parent" style="flex-direction:column; width:100px; height:100px; padding-top: 10px; border-top: 10px;">
+<div id="absolute_layout_percentage_height_based_on_padded_parent"
+  style="flex-direction:column; width:100px; height:100px; padding-top: 10px; border-top: 10px solid black;">
   <div style="width:100px; height:50%; position: absolute;"></div>
 </div>
 
-<div id="absolute_layout_percentage_height_based_on_padded_parent_and_align_items_center" style="position: relative; flex-direction:column; align-items:center; justify-content:center; width:100px; height:100px; padding-top:20px; padding-bottom:20px; ">
-    <div style="position:absolute; width:100px; height:50%;"></div>
+<div id="absolute_layout_percentage_height_based_on_padded_parent_and_align_items_center"
+  style="position: relative; flex-direction:column; align-items:center; justify-content:center; width:100px; height:100px; padding-top:20px; padding-bottom:20px; ">
+  <div style="position:absolute; width:100px; height:50%;"></div>
+</div>
+
+<div id="absolute_layout_padding_left" style="width:200px; height:200px; padding-left:100px;">
+  <div style="position:absolute; width:50px; height:50px;"></div>
+</div>
+
+<div id="absolute_layout_padding_right" style="width:200px; height:200px; padding-right:100px;">
+  <div style="position:absolute; width:50px; height:50px;"></div>
+</div>
+
+<div id="absolute_layout_padding_top" style="width:200px; height:200px; padding-top:100px;">
+  <div style="position:absolute; width:50px; height:50px;"></div>
+</div>
+
+<div id="absolute_layout_padding_bottom" style="width:200px; height:200px; padding-bottom:100px;">
+  <div style="position:absolute; width:50px; height:50px;"></div>
+</div>
+
+<div id="absolute_layout_padding">
+  <div style="width:200px; height:200px; margin:10px; position: relative">
+    <div style="position:static; width:200px; height:200px; padding: 50px;">
+      <div style="position:absolute; width:50px; height:50px;"></div>
+    </div>
+  </div>
+</div>
+
+<div id="absolute_layout_border">
+  <div style="width:200px; height:200px; margin:10px; position: relative">
+    <div style="position:static; width:200px; height:200px; border: 10px solid black;">
+      <div style="position:absolute; width:50px; height:50px;"></div>
+    </div>
+  </div>
+</div>
+
+<div id="absolute_layout_column_reverse_margin_border"
+  style="width:200px; height:200px; flex-direction: column-reverse;">
+  <div
+    style="position:absolute; width:50px; height:50px; left: 5px; right: 3px; margin-right: 4px; margin-left: 3px; border-right: 7px solid black; border-left: 1px solid black">
+  </div>
 </div>