[Swift] Fix verifier accepting truncated scalar vectors (OOB read/write, RCE) (#9081)

* Migrating from Xctests to swift testing

This migrates to the new Swift testing framework,
which would allow us to always use the latest tech
from swift moving forward.

* Updates flag to make sure that Wasm testing works

.bazelci/presubmit.yml

@@ -10,7 +10,7 @@ tasks:
     bazel: ${{ bazel }}
     environment:
       CC: clang
-      SWIFT_VERSION: "5.9"
+      SWIFT_VERSION: "5.10"
       SWIFT_HOME: "$HOME/swift-$SWIFT_VERSION"
       PATH: "$PATH:$SWIFT_HOME/usr/bin"
     shell_commands:
@@ -26,7 +26,7 @@ tasks:
     bazel: ${{ bazel }}
     environment:
       CC: clang
-      SWIFT_VERSION: "5.9"
+      SWIFT_VERSION: "5.10"
       SWIFT_HOME: "$HOME/swift-$SWIFT_VERSION"
       PATH: "$PATH:$SWIFT_HOME/usr/bin"
     shell_commands:

.clang-format

@@ -1,13 +1,5 @@
 ---
 Language: Cpp
 BasedOnStyle: Google
-DerivePointerAlignment: false
-PointerAlignment: Right
-IndentPPDirectives: AfterHash
-Cpp11BracedListStyle: false
-AlwaysBreakTemplateDeclarations: false
-AllowShortCaseLabelsOnASingleLine: true
-SpaceAfterTemplateKeyword: false
-AllowShortBlocksOnASingleLine: true
 ...
 

.eslintrc.js

@@ -1,13 +0,0 @@
-/* eslint-env node */
-
-module.exports = {
-    root: true,
-    parser: '@typescript-eslint/parser',
-    plugins: [
-        '@typescript-eslint',
-    ],
-    extends: [
-        'eslint:recommended',
-        'plugin:@typescript-eslint/recommended',
-    ]
-};

.github/CODEOWNERS

@@ -0,0 +1,5 @@
+# Default owner
+* @dbaileychess derekbailey@google.com
+
+# Prevent modification of this file
+.github/CODEOWNERS @dbaileychess derekbailey@google.com

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/labeler.yml

@@ -5,93 +5,133 @@
 #
 # See .github/workflows/label.yml for Github Action workflow script
 
-c#:
+"c#":
-  - '**/*.cs'
+  - changed-files:
-  - net/**/*
+    - any-glob-to-any-file:
-  - tests/FlatBuffers.Test/**/*
+      - '**/*.cs'
-  - tests/FlatBuffers.Benchmarks/**/*
+      - 'net/**/*'
-  - src/idl_gen_csharp.cpp
+      - 'tests/FlatBuffers.Test/**/*'
+      - 'tests/FlatBuffers.Benchmarks/**/*'
+      - 'src/idl_gen_csharp.cpp'
 
 swift:
-  - '**/*.swift'
+  - changed-files:
-  - swift/**/*
+    - any-glob-to-any-file:
-  - tests/swift/**
+      - '**/*.swift'
-  - src/idl_gen_swift.cpp
+      - 'swift/**/*'
+      - 'tests/swift/**'
+      - 'src/idl_gen_swift.cpp'
 
 nim:
-  - '**/*.nim'
+  - changed-files:
-  - nim/**/*
+    - any-glob-to-any-file:
-  - src/idl_gen_nim.cpp
+      - '**/*.nim'
-  - src/bfbs_gen_nim.cpp
+      - 'nim/**/*'
+      - 'src/idl_gen_nim.cpp'
+      - 'src/bfbs_gen_nim.cpp'
 
 javascript:
-  - '**/*.js'
+  - changed-files:
-  - src/idl_gen_ts.cpp
+    - any-glob-to-any-file:
+      - '**/*.js'
+      - 'src/idl_gen_ts.cpp'
 
 typescript:
-  - '**/*.ts'
+  - changed-files:
-  - src/idl_gen_ts.cpp
+    - any-glob-to-any-file:
-  - grpc/flatbuffers-js-grpc/**/*.ts
+      - '**/*.ts'
+      - 'src/idl_gen_ts.cpp'
+      - 'grpc/flatbuffers-js-grpc/**/*.ts'
 
 golang:
-  - '**/*.go'
+  - changed-files:
-  - src/idl_gen_go.cpp
+    - any-glob-to-any-file:
+      - '**/*.go'
+      - 'src/idl_gen_go.cpp'
 
 python:
-  - '**/*.py'
+  - changed-files:
-  - src/idl_gen_python.cpp
+    - any-glob-to-any-file:
+      - '**/*.py'
+      - 'src/idl_gen_python.cpp'
 
 java:
-  - '**/*.java'
+  - changed-files:
-  - src/idl_gen_java.cpp
+    - any-glob-to-any-file:
+      - '**/*.java'
+      - 'src/idl_gen_java.cpp'
 
 kotlin:
-  - '**/*.kt'
+  - changed-files:
-  - src/idl_gen_kotlin.cpp
+    - any-glob-to-any-file:
-  - src/idl_gen_kotlin_kmp.cpp
+      - '**/*.kt'
+      - 'src/idl_gen_kotlin.cpp'
+      - 'src/idl_gen_kotlin_kmp.cpp'
 
 lua:
-  - '**/*.lua'
+  - changed-files:
-  - lua/**/*
+    - any-glob-to-any-file:
-  - src/bfbs_gen_lua.cpp
+      - '**/*.lua'
+      - 'lua/**/*'
+      - 'src/bfbs_gen_lua.cpp'
 
 lobster:
-  - '**/*.lobster'
+  - changed-files:
-  - src/idl_gen_lobster.cpp
+    - any-glob-to-any-file:
+      - '**/*.lobster'
+      - 'src/idl_gen_lobster.cpp'
 
 php:
-  - '**/*.php'
+  - changed-files:
-  - src/idl_gen_php.cpp
+    - any-glob-to-any-file:
+      - '**/*.php'
+      - 'src/idl_gen_php.cpp'
 
 rust:
-  - '**/*.rs'
+  - changed-files:
-  - rust/**/*
+    - any-glob-to-any-file:
-  - src/idl_gen_rust.cpp
+      - '**/*.rs'
+      - 'rust/**/*'
+      - 'src/idl_gen_rust.cpp'
 
 dart:
-  - '**/*.dart'
+  - changed-files:
-  - src/idl_gen_dart.cpp
+    - any-glob-to-any-file:
+      - '**/*.dart'
+      - 'src/idl_gen_dart.cpp'
 
-c++:
+"c++":
-  - '**/*.cc'
+  - changed-files:
-  - '**/*.cpp'
+    - any-glob-to-any-file:
-  - '**/*.h'
+      - '**/*.cc'
+      - '**/*.cpp'
+      - '**/*.h'
 
 json:
-  - '**/*.json'
+  - changed-files:
-  - src/idl_gen_json_schema.cpp
+    - any-glob-to-any-file:
+      - '**/*.json'
+      - 'src/idl_gen_json_schema.cpp'
 
 codegen:
-  - src/**/*
+  - changed-files:
+    - any-glob-to-any-file:
+      - 'src/**/*'
 
 documentation:
-  - docs/**/*
+  - changed-files:
-  - '**/*.md'
+    - any-glob-to-any-file:
+      - 'docs/**/*'
+      - '**/*.md'
 
 CI:
-  - '.github/**/*'
+  - changed-files:
-  - '.bazelci/**/*'
+    - any-glob-to-any-file:
+      - '.github/**/*'
+      - '.bazelci/**/*'
 
 grpc:
-  - grpc/**/*
+  - changed-files:
-  - src/idl_gen_grpc.cpp
+    - any-glob-to-any-file:
+      - 'grpc/**/*'
+      - 'src/idl_gen_grpc.cpp'

.github/workflows/build.yml

@@ -30,7 +30,7 @@ jobs:
         cxx: [g++-13, clang++-18]
       fail-fast: false
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: cmake
       run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON -DFLATBUFFERS_STATIC_FLATC=ON .
     - name: build
@@ -42,7 +42,7 @@ jobs:
         chmod +x flatc
         ./flatc --version
     - name: upload build artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       with:
         name: Linux flatc binary ${{ matrix.cxx }}
         path: flatc
@@ -51,7 +51,7 @@ jobs:
       if: startsWith(github.ref, 'refs/tags/')
       run: zip Linux.flatc.binary.${{ matrix.cxx }}.zip flatc
     - name: Release zip file
-      uses: softprops/action-gh-release@v1
+      uses: softprops/action-gh-release@v2
       if: startsWith(github.ref, 'refs/tags/')
       with:
         files: Linux.flatc.binary.${{ matrix.cxx }}.zip
@@ -68,7 +68,7 @@ jobs:
     name: Build Linux with -DFLATBUFFERS_NO_FILE_TESTS
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: cmake
       run: CXX=clang++-18 cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON -DFLATBUFFERS_CXX_FLAGS="-DFLATBUFFERS_NO_FILE_TESTS" .
     - name: build
@@ -80,7 +80,7 @@ jobs:
     name: Build Linux with out-of-source build location
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: make build directory
       run: mkdir build
     - name: cmake
@@ -112,7 +112,7 @@ jobs:
             std: 23
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: cmake
       run: >
         CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles"
@@ -129,18 +129,18 @@ jobs:
 
   build-cpp-std:
     name: Build Windows C++
-    runs-on: windows-2019
+    runs-on: windows-2022
     strategy:
       matrix:
         std: [11, 14, 17, 20, 23]
       fail-fast: false
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.1
+      uses: microsoft/setup-msbuild@v2
     - name: cmake
       run: >
-        cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE=Release
+        cmake -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=Release
         -DFLATBUFFERS_STRICT_MODE=ON
         -DFLATBUFFERS_CPP_STD=${{ matrix.std }}
         -DFLATBUFFERS_BUILD_CPP17=${{ matrix.std >= 17 && 'On' || 'Off'}}
@@ -157,20 +157,20 @@ jobs:
       contents: write
     outputs:
       digests: ${{ steps.hash.outputs.hashes }}
-    name: Build Windows 2019
+    name: Build Windows 2022
-    runs-on: windows-2019
+    runs-on: windows-2022
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.1
+      uses: microsoft/setup-msbuild@v2
     - name: cmake
-      run: cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_CPP17=ON -DFLATBUFFERS_STRICT_MODE=ON .
+      run: cmake -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_CPP17=ON -DFLATBUFFERS_STRICT_MODE=ON .
     - name: build
       run: msbuild.exe FlatBuffers.sln /p:Configuration=Release /p:Platform=x64
     - name: test
       run: Release\flattests.exe
     - name: upload build artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       with:
         name: Windows flatc binary
         path: Release\flatc.exe
@@ -179,7 +179,7 @@ jobs:
       if: startsWith(github.ref, 'refs/tags/')
       run: move Release/flatc.exe . && Compress-Archive flatc.exe Windows.flatc.binary.zip
     - name: Release binary
-      uses: softprops/action-gh-release@v1
+      uses: softprops/action-gh-release@v2
       if: startsWith(github.ref, 'refs/tags/')
       with:
         files: Windows.flatc.binary.zip
@@ -191,25 +191,24 @@ jobs:
 
   build-dotnet-windows:
     name: Build .NET Windows
-    runs-on: windows-2022-64core
+    runs-on: windows-2022
     strategy:
       matrix:
         configuration: [
           '',
           '-p:UnsafeByteBuffer=true',
-          # Fails two tests currently.
+          '-p:EnableSpanT=true,UnsafeByteBuffer=true'
-          #'-p:EnableSpanT=true,UnsafeByteBuffer=true'
           ]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Setup .NET Core SDK
-      uses: actions/setup-dotnet@v4.2.0
+      uses: actions/setup-dotnet@v5
       with:
         dotnet-version: '8.0.x'
     - name: Build
       run: |
         cd tests\FlatBuffers.Test
-        dotnet new sln --force --name FlatBuffers.Test
+        dotnet new sln --force --name FlatBuffers.Test --format sln
         dotnet sln FlatBuffers.Test.sln add FlatBuffers.Test.csproj
         dotnet build -c Release ${{matrix.configuration}} FlatBuffers.Test.sln
     - name: Run net6.0
@@ -228,9 +227,9 @@ jobs:
     outputs:
       digests: ${{ steps.hash.outputs.hashes }}
     name: Build Mac (for Intel)
-    runs-on: macos-latest-large
+    runs-on: macos-15-intel
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: cmake
       run: cmake -G "Xcode" -DCMAKE_OSX_ARCHITECTURES="x86_64" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON .
     - name: build
@@ -247,7 +246,7 @@ jobs:
         chmod +x Release/flatc
         Release/flatc --version
     - name: upload build artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       with:
         name: Mac flatc binary Intel
         path: Release/flatc
@@ -256,7 +255,7 @@ jobs:
       if: startsWith(github.ref, 'refs/tags/')
       run: mv Release/flatc . && zip MacIntel.flatc.binary.zip flatc
     - name: Release binary
-      uses: softprops/action-gh-release@v1
+      uses: softprops/action-gh-release@v2
       if: startsWith(github.ref, 'refs/tags/')
       with:
         files: MacIntel.flatc.binary.zip
@@ -273,7 +272,7 @@ jobs:
     name: Build Mac (universal build)
     runs-on: macos-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: cmake
       run: cmake -G "Xcode" -DCMAKE_OSX_ARCHITECTURES="arm64;x86_64" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON .
     - name: build
@@ -290,7 +289,7 @@ jobs:
         chmod +x Release/flatc
         Release/flatc --version
     - name: upload build artifacts
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       with:
         name: Mac flatc binary Universal
         path: Release/flatc
@@ -299,7 +298,7 @@ jobs:
       if: startsWith(github.ref, 'refs/tags/')
       run: mv Release/flatc . && zip Mac.flatc.binary.zip flatc
     - name: Release binary
-      uses: softprops/action-gh-release@v1
+      uses: softprops/action-gh-release@v2
       if: startsWith(github.ref, 'refs/tags/')
       with:
         files: Mac.flatc.binary.zip
@@ -310,14 +309,17 @@ jobs:
 
   build-android:
    name: Build Android (on Linux)
+   if: false #disabled due to continual failure
    runs-on: ubuntu-24.04
    steps:
-   - uses: actions/checkout@v3
+   - uses: actions/checkout@v6
    - name: set up Java
-     uses: actions/setup-java@v3
+     uses: actions/setup-java@v5
      with:
-       distribution: 'temurin'
+       distribution: temurin
-       java-version: '11'
+       java-version: 17
+   - name: set up Gradle
+     uses: gradle/actions/setup-gradle@v5
    - name: set up flatc
      run: |
        cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF -DFLATBUFFERS_STRICT_MODE=ON .
@@ -334,7 +336,7 @@ jobs:
       matrix:
         cxx: [g++-13, clang++-18]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: cmake
       run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_BUILD_TESTS=OFF -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON . && make -j
     - name: Generate
@@ -344,13 +346,13 @@ jobs:
 
   build-generator-windows:
     name: Check Generated Code on Windows
-    runs-on: windows-2019
+    runs-on: windows-2022
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.1
+      uses: microsoft/setup-msbuild@v2
     - name: cmake
-      run: cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_CPP17=ON -DFLATBUFFERS_STRICT_MODE=ON .
+      run: cmake -G "Visual Studio 17 2022" -A x64 -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_CPP17=ON -DFLATBUFFERS_STRICT_MODE=ON .
     - name: build
       run: msbuild.exe FlatBuffers.sln /p:Configuration=Release /p:Platform=x64
     - name: Generate
@@ -365,13 +367,13 @@ jobs:
       matrix:
         cxx: [g++-13]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: cmake
       run: CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" -DFLATBUFFERS_CXX_FLAGS="-Wno-unused-parameter -fno-aligned-new" -DFLATBUFFERS_BUILD_BENCHMARKS=ON -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON . && make -j
     - name: Run benchmarks
       run: ./flatbenchmark --benchmark_repetitions=5 --benchmark_display_aggregates_only=true --benchmark_out_format=console --benchmark_out=benchmarks/results_${{matrix.cxx}}
     - name: Upload benchmarks results
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v7
       with:
         name: Linux flatbenchmark results ${{matrix.cxx}}
         path: benchmarks/results_${{matrix.cxx}}
@@ -380,29 +382,24 @@ jobs:
     name: Build Java
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: test
       working-directory: java
       run: mvn test
 
   build-kotlin-macos:
     name: Build Kotlin MacOS
-    runs-on: macos-13
+    runs-on: macos-15
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
-      # Force Xcode 14.3 since Xcode 15 doesnt support older versions of
+    - name: set up Java
-      # kotlin. For Xcode 15, kotlin should be bumpped to 1.9.10
+      uses: actions/setup-java@v5
-      # https://stackoverflow.com/a/77150623
-      # For now, run with macos-13 which has this 14.3 installed: 
-      # https://github.com/actions/runner-images/blob/main/images/macos/macos-13-Readme.md#xcode
-    - name: Set up Xcode version
-      run: sudo xcode-select -s /Applications/Xcode_14.3.app/Contents/Developer
-    - uses: gradle/wrapper-validation-action@v1.0.5
-    - uses: actions/setup-java@v3
       with:
-        distribution: 'temurin'
+        distribution: temurin
-        java-version: '11'
+        java-version: 17
+    - name: set up Gradle
+      uses: gradle/actions/setup-gradle@v5
     - name: Build flatc
       run: |
        cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF .
@@ -414,15 +411,18 @@ jobs:
 
   build-kotlin-linux:
     name: Build Kotlin Linux
+    if: false #disabled due to continual failure
     runs-on: ubuntu-24.04
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
-    - uses: actions/setup-java@v3
+    - name: set up Java
+      uses: actions/setup-java@v5
       with:
-        distribution: 'temurin'
+        distribution: temurin
-        java-version: '11'
+        java-version: 17
-    - uses: gradle/wrapper-validation-action@v1.0.5
+    - name: set up Gradle
+      uses: gradle/actions/setup-gradle@v5
     - name: Build flatc
       run: |
        cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF .
@@ -439,16 +439,16 @@ jobs:
     name: Build Rust Linux
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: test
       working-directory: tests
       run: bash RustTest.sh
 
   build-rust-windows:
     name: Build Rust Windows
-    runs-on: windows-2022-64core
+    runs-on: windows-2022
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: test
       working-directory: tests
       run: ./RustTest.bat
@@ -457,7 +457,7 @@ jobs:
     name: Build Python
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: flatc
       # FIXME: make test script not rely on flatc
       run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF -DFLATBUFFERS_STRICT_MODE=ON . && make -j
@@ -469,7 +469,7 @@ jobs:
     name: Build Go
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: flatc
       # FIXME: make test script not rely on flatc
       run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF -DFLATBUFFERS_STRICT_MODE=ON . && make -j
@@ -481,7 +481,7 @@ jobs:
    name: Build PHP
    runs-on: ubuntu-24.04
    steps:
-   - uses: actions/checkout@v3
+   - uses: actions/checkout@v6
    - name: flatc
      # FIXME: make test script not rely on flatc
      run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF -DFLATBUFFERS_STRICT_MODE=ON . && make -j
@@ -492,63 +492,74 @@ jobs:
        sh phpUnionVectorTest.sh
 
   build-swift:
-    name: Build Swift
+    name: Test Swift Linux
     strategy:
       matrix:
-        swift: ["5.9", "5.10", "6.0"]
+        swift: ["6.0", "6.1", "6.2"]
-    # Only 22.04 has swift at the moment https://github.com/actions/runner-images/blob/main/images/ubuntu/Ubuntu2204-Readme.md?plain=1#L30
+    runs-on: ubuntu-24.04
-    runs-on: ubuntu-22.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - uses: swift-actions/setup-swift@v2
       with:
         swift-version: ${{ matrix.swift }}
     - name: Get swift version
       run: swift --version
     - name: test
-      working-directory: tests/swift/tests
+      run: swift test
-      run: |
+
-        swift build --build-tests
+  build-swift-windows:
-        swift test
+    name: Test swift windows
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v6
+      - uses: SwiftyLab/setup-swift@latest
+        with:
+          swift-version: '6.1'
+      - run: swift build
+      - run: swift test
 
   build-swift-wasm:
-    name: Build Swift Wasm
+    name: Test Swift Wasm
     runs-on: ubuntu-24.04
-    container:
-      image: ghcr.io/swiftwasm/carton:0.20.1
     steps:
-       - uses: actions/checkout@v3
+       - uses: actions/checkout@v6
-       - uses: bytecodealliance/actions/wasmtime/setup@v1
+       - uses: swift-actions/setup-swift@v2
-       - uses: swiftwasm/setup-swiftwasm@v1
          with:
-           swift-version: "wasm-6.0.2-RELEASE"
+           swift-version: 6.2.1
+       - uses: bytecodealliance/actions/wasmtime/setup@v1
+       - name: Install Swift SDK
+         run: swift sdk install https://download.swift.org/swift-6.2.1-release/wasm-sdk/swift-6.2.1-RELEASE/swift-6.2.1-RELEASE_wasm.artifactbundle.tar.gz --checksum 482b9f95462b87bedfafca94a092cf9ec4496671ca13b43745097122d20f18af
        - name: Test
          working-directory: tests/swift/Wasm.tests
-         run: swift run carton test
+         run: |
+           swift sdk list
+           swift build --build-tests --swift-sdk swift-6.2.1-RELEASE_wasm
+           wasmtime --dir . .build/wasm32-unknown-wasip1/debug/FlatBuffers.Test.Swift.WasmPackageTests.xctest --testing-library swift-testing
 
   build-ts:
     name: Build TS
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: flatc
       # FIXME: make test script not rely on flatc
       run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j
+    - name: pnpm
+      run: npm install -g pnpm
     - name: deps
-      run: yarn
+      run: pnpm i
     - name: compile
-      run: yarn compile
+      run: pnpm compile
     - name: test
       working-directory: tests/ts
       run: |
-        yarn global add esbuild
         python3 TypeScriptTest.py
 
   build-dart:
     name: Build Dart
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - uses: dart-lang/setup-dart@v1
         with:
           sdk: stable
@@ -563,11 +574,11 @@ jobs:
     name: Build Nim
     runs-on: ubuntu-24.04
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: flatc
       # FIXME: make test script not rely on flatc
       run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j
-    - uses: jiro4989/setup-nim-action@v1
+    - uses: jiro4989/setup-nim-action@v2
     - name: install library
       working-directory: nim
       run: nimble -y develop && nimble install
@@ -579,15 +590,20 @@ jobs:
     name: Bazel
     runs-on: ubuntu-24.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
+      # Explicitly use 8.5.1 until we can update or https://github.com/actions/runner-images/issues/13564 is fixed.
+      - name: Set env
+        run: >
+          echo "USE_BAZEL_VERSION=8.5.1" >> $GITHUB_ENV
       - name: bazel build
         run: >
-          bazel build 
+          bazel build
           //:flatc
           //:flatbuffers
+          //tests:flatbuffers_test
       - name: bazel test
         run: >
-          bazel test 
+          bazel test
           //tests:flatbuffers_test
 
   release-digests:
@@ -621,8 +637,7 @@ jobs:
       actions: read   # To read the workflow path.
       id-token: write # To sign the provenance.
       contents: write # To add assets to a release.
-    uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@v1.2.1
+    uses: slsa-framework/slsa-github-generator/.github/workflows/generator_generic_slsa3.yml@v2.1.0
     with:
       base64-subjects: "${{ needs.release-digests.outputs.digests }}"
       upload-assets: true # Optional: Upload to a new release
-      compile-generator: true # Workaround for https://github.com/slsa-framework/slsa-github-generator/issues/1163

.github/workflows/docs.yml

@@ -16,16 +16,16 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Configure Git Credentials
         run: |
           git config user.name github-actions[bot]
           git config user.email 41898282+github-actions[bot]@users.noreply.github.com
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: 3.x
       - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV 
-      - uses: actions/cache@v4
+      - uses: actions/cache@v5
         with:
           key: mkdocs-material-${{ env.cache_id }}
           path: .cache

.github/workflows/label.yml

@@ -19,6 +19,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/labeler@ee18d5d34efd9b4f7dafdb0e363cb688eb438044 # 4.1.0
+    - uses: actions/labeler@v6
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"

.github/workflows/main.yml

@@ -27,7 +27,7 @@ jobs:
        language: c++
        fuzz-seconds: 60
    - name: Upload Crash
-     uses: actions/upload-artifact@v4
+     uses: actions/upload-artifact@v7
      if: failure() && steps.build.outcome == 'success'
      with:
        name: artifacts

.github/workflows/release.yml

@@ -12,8 +12,8 @@ jobs:
     name: Publish NPM
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
-      - uses: actions/setup-node@v3
+      - uses: actions/setup-node@v6
         with:
           node-version: '20.x'
           registry-url: 'https://registry.npmjs.org'
@@ -29,19 +29,19 @@ jobs:
       run:
         working-directory: ./python
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v6
         with:
           python-version: '3.10'
 
       - name: Install Dependencies
         run: |
           python3 -m pip install --upgrade pip
-          python3 -m pip install setuptools wheel twine
+          python3 -m pip install build twine
 
       - name: Build
         run: |
-          python3 setup.py sdist bdist_wheel
+          python3 -m build .
 
       - name: Upload to PyPi
         run: |
@@ -57,8 +57,8 @@ jobs:
       run:
         working-directory: ./net/flatbuffers
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
-      - uses: actions/setup-dotnet@v3
+      - uses: actions/setup-dotnet@v5
         with:
           dotnet-version: '8.0.x'
       - name: Build
@@ -80,10 +80,10 @@ jobs:
       run:
         working-directory: ./java
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
 
       - name: Set up Maven Central Repository
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v5
         with:
           java-version: '11'
           distribution: 'adopt'
@@ -108,9 +108,9 @@ jobs:
       run:
         working-directory: ./kotlin
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - name: Set up Maven Central Repository
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v5
         with:
           java-version: '11'
           distribution: 'adopt'
@@ -133,7 +133,7 @@ jobs:
     name: Publish crates.io
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v6
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: stable

.github/workflows/stale.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/stale@v7.0.0
+    - uses: actions/stale@v10
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
         operations-per-run: 500

.gitignore

@@ -156,4 +156,7 @@ kotlin/**/generated
 MODULE.bazel.lock
 
 # Ignore the generated docs
-docs/site
+docs/site
+
+# Ignore generated files
+*.fbs.h

CHANGELOG.md

@@ -4,6 +4,23 @@ All major or breaking changes will be documented in this file, as well as any
 new features that should be highlighted. Minor fixes or improvements are not
 necessarily listed.
 
+## [25.12.19] (December 19 2025)(https://github.com/google/flatbuffers/releases/tag/v25.12.19)
+
+* [C++] Default emptry vector support (#8870)
+* [C++] Add --gen-absl-hash option (#8868)
+* [Kotlin] Upgrade to MacOS 15 (#8845)
+* [C++] Fix vector of table with naked ptrs (#8830)
+* [Python] Optimize Offset/Pad/Prep (#8808)
+* Implement `--file-names-only` (#8788)
+* [C++] Fix size verifer (#8740)
+
+## [25.9.23] (September 23 2025)(https://github.com/google/flatbuffers/releases/tag/v25.9.23)
+
+* flatc: `--grpc-callback-api` flag generates C++ gRPC Callback API server `CallbackService` skeletons AND client native callback/async stubs (unary + all streaming reactor forms) (opt-in, non-breaking, issue #8596).
+* Swift - Adds new API to reduce memory copying within swift (#8484)
+* Rust - Support Rust edition 2024 (#8638)
+* [C++] - Use the Google Style for clang-format without exceptions (#8706)
+
 ## [25.2.10] (February 10 2025)(https://github.com/google/flatbuffers/releases/tag/v25.2.10)
 
 * Removed the old documentation pages. The new one is live at https://flatbuffers.dev

CMake/BuildFlatBuffers.cmake

@@ -305,8 +305,7 @@ function(flatbuffers_generate_headers)
       ${FLATBUFFERS_GENERATE_HEADERS_SCHEMAS})
   add_dependencies(
     ${FLATBUFFERS_GENERATE_HEADERS_TARGET}
-    ${FLATC}
+    ${FLATC_TARGET})
-    ${FLATBUFFERS_GENERATE_HEADERS_SCHEMAS})
   target_include_directories(
     ${FLATBUFFERS_GENERATE_HEADERS_TARGET}
     INTERFACE ${generated_target_dir})

CMake/Version.cmake

@@ -1,6 +1,6 @@
 set(VERSION_MAJOR 25)
-set(VERSION_MINOR 2)
+set(VERSION_MINOR 12)
-set(VERSION_PATCH 10)
+set(VERSION_PATCH 19)
 set(VERSION_COMMIT 0)
 
 if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")

CMakeLists.txt

@@ -112,6 +112,7 @@ endif()
 add_definitions(-DFLATBUFFERS_LOCALE_INDEPENDENT=$<BOOL:${FLATBUFFERS_LOCALE_INDEPENDENT}>)
 
 if(NOT WIN32)
+  include(CheckSymbolExists)
   check_symbol_exists(realpath "stdlib.h" HAVE_REALPATH)
   if(NOT HAVE_REALPATH)
     add_definitions(-DFLATBUFFERS_NO_ABSOLUTE_PATH_RESOLUTION)
@@ -146,6 +147,8 @@ set(FlatBuffers_Library_SRCS
   include/flatbuffers/vector.h
   include/flatbuffers/vector_downward.h
   include/flatbuffers/verifier.h
+  src/file_manager.cpp
+  src/file_name_manager.cpp
   src/idl_parser.cpp
   src/idl_gen_text.cpp
   src/reflection.cpp
@@ -172,9 +175,6 @@ set(FlatBuffers_Compiler_SRCS
   src/idl_gen_grpc.cpp
   src/idl_gen_json_schema.cpp
   src/idl_gen_swift.cpp
-  src/file_name_saving_file_manager.cpp
-  src/file_binary_writer.cpp
-  src/file_writer.cpp
   src/idl_namer.h
   src/namer.h
   src/flatc.cpp
@@ -218,6 +218,8 @@ set(FlatHash_SRCS
 set(FlatBuffers_Tests_SRCS
   ${FlatBuffers_Library_SRCS}
   src/idl_gen_fbs.cpp
+  tests/default_vectors_strings_test.cpp
+  tests/default_vectors_strings_test.h
   tests/evolution_test.cpp
   tests/flexbuffers_test.cpp
   tests/fuzz_test.cpp
@@ -234,6 +236,8 @@ set(FlatBuffers_Tests_SRCS
   tests/test_builder.h
   tests/test_builder.cpp
   tests/util_test.cpp
+  tests/vector_table_naked_ptr_test.h
+  tests/vector_table_naked_ptr_test.cpp
   tests/native_type_test_impl.h
   tests/native_type_test_impl.cpp
   tests/alignment_test.h
@@ -278,6 +282,8 @@ set(FlatBuffers_GRPCTest_SRCS
   tests/test_builder.cpp
   grpc/tests/grpctest.cpp
   grpc/tests/message_builder_test.cpp
+  grpc/tests/grpctest_callback_compile.cpp
+  grpc/tests/grpctest_callback_client_compile.cpp
 )
 
 # TODO(dbaileychess): Figure out how this would now work. I posted a question on
@@ -492,28 +498,34 @@ if(FLATBUFFERS_BUILD_SHAREDLIB)
   endif()
 endif()
 
-function(compile_schema SRC_FBS OPT OUT_GEN_FILE) 
+function(compile_schema SRC_FBS OPT SUFFIX OUT_GEN_FILE) 
   get_filename_component(SRC_FBS_DIR ${SRC_FBS} PATH)
-  string(REGEX REPLACE "\\.fbs$" "_generated.h" GEN_HEADER ${SRC_FBS})
+  string(REGEX REPLACE "\\.fbs$" "${SUFFIX}.h" GEN_HEADER ${SRC_FBS})
   add_custom_command(
     OUTPUT ${GEN_HEADER}
     COMMAND "${FLATBUFFERS_FLATC_EXECUTABLE}"
       ${OPT}
+      --filename-suffix ${SUFFIX}
       -o "${SRC_FBS_DIR}"
       "${CMAKE_CURRENT_SOURCE_DIR}/${SRC_FBS}"
     DEPENDS flatc ${SRC_FBS}
     COMMENT "flatc generation: `${SRC_FBS}` -> `${GEN_HEADER}`"
-    )
+  )
   set(${OUT_GEN_FILE} ${GEN_HEADER} PARENT_SCOPE)
 endfunction()
 
 function(compile_schema_for_test SRC_FBS OPT)
-  compile_schema("${SRC_FBS}" "${OPT}" GEN_FILE)
+  compile_schema("${SRC_FBS}" "${OPT}" "_generated" GEN_FILE)
+  target_sources(flattests PRIVATE ${GEN_FILE})
+endfunction()
+
+function(compile_schema_for_test_fbsh SRC_FBS OPT)
+  compile_schema("${SRC_FBS}" "${OPT}" ".fbs" GEN_FILE)
   target_sources(flattests PRIVATE ${GEN_FILE})
 endfunction()
 
 function(compile_schema_for_samples SRC_FBS OPT)
-  compile_schema("${SRC_FBS}" "${OPT}" GEN_FILE)
+  compile_schema("${SRC_FBS}" "${OPT}" "_generated" GEN_FILE)
   target_sources(flatsample PRIVATE ${GEN_FILE})
 endfunction()
 
@@ -534,19 +546,20 @@ if(FLATBUFFERS_BUILD_TESTS)
   add_definitions(-DFLATBUFFERS_TEST_PATH_PREFIX=${CMAKE_CURRENT_SOURCE_DIR}/)
 
   # The flattest target needs some generated files
-  SET(FLATC_OPT --cpp --gen-mutable --gen-object-api --reflect-names)
+  SET(FLATC_OPT_COMP --cpp --gen-compare --gen-mutable --gen-object-api --reflect-names)
-  SET(FLATC_OPT_COMP ${FLATC_OPT};--gen-compare)
   SET(FLATC_OPT_SCOPED_ENUMS ${FLATC_OPT_COMP};--scoped-enums)
 
   compile_schema_for_test(tests/alignment_test.fbs "${FLATC_OPT_COMP}")
+  compile_schema_for_test_fbsh(tests/default_vectors_strings_test.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/arrays_test.fbs "${FLATC_OPT_SCOPED_ENUMS}")
   compile_schema_for_test(tests/native_inline_table_test.fbs "${FLATC_OPT_COMP}")
-  compile_schema_for_test(tests/native_type_test.fbs "${FLATC_OPT}")
+  compile_schema_for_test(tests/native_type_test.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/key_field/key_field_sample.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/64bit/test_64bit.fbs "${FLATC_OPT_COMP};--bfbs-gen-embed")
   compile_schema_for_test(tests/64bit/evolution/v1.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/64bit/evolution/v2.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/union_underlying_type_test.fbs "${FLATC_OPT_SCOPED_ENUMS}")
+  compile_schema_for_test(tests/cross_namespace_pack_test.fbs "${FLATC_OPT_COMP}")
 
   if(FLATBUFFERS_CODE_SANITIZE)
     add_fsanitize_to_target(flattests ${FLATBUFFERS_CODE_SANITIZE})
@@ -568,8 +581,6 @@ if(FLATBUFFERS_BUILD_TESTS)
 
   # Since flatsample has no sources, we have to explicitly set the linker lang.
   set_target_properties(flatsample PROPERTIES LINKER_LANGUAGE CXX)
-  
-  compile_schema_for_samples(samples/monster.fbs "${FLATC_OPT_COMP}")
 
   target_link_libraries(flatsamplebinary PRIVATE $<BUILD_INTERFACE:ProjectConfig> flatsample)
   target_link_libraries(flatsampletext PRIVATE $<BUILD_INTERFACE:ProjectConfig> flatsample)

CONTRIBUTING.md

@@ -30,7 +30,7 @@ Some tips for good pull requests:
 * Write a descriptive commit message. What problem are you solving and what
   are the consequences? Where and what did you test? Some good tips:
   [here](http://robots.thoughtbot.com/5-useful-tips-for-a-better-commit-message)
-  and [here](https://www.kernel.org/doc/Documentation/SubmittingPatches).
+  and [here](https://www.kernel.org/doc/Documentation/process/submitting-patches.rst).
 * If your PR consists of multiple commits which are successive improvements /
   fixes to your first commit, consider squashing them into a single commit
   (`git rebase -i`) such that your PR is a single commit on top of the current
@@ -40,3 +40,26 @@ Some tips for good pull requests:
 # The small print
 Contributions made by corporations are covered by a different agreement than
 the one above, the Software Grant and Corporate Contributor License Agreement.
+
+# Code
+
+TL/DR
+
+See [how to build flatc](https://flatbuffers.dev/building/).
+
+When making changes, build `flatc` and then re-generate the goldens files to see the effect of your changes:
+
+```
+$ cp build/flatc .
+$ goldens/generate_goldens.py
+```
+
+Re-generate other code files to see the effects of the changes:
+
+```
+$ scripts/generate_code.py
+```
+
+Run tests with [TestAll.sh](tests/TestAll.sh) in [tests](tests), or directly any of the sub-scripts run by it.
+
+[Format the code](Formatters.md) before submitting a PR.

FlatBuffers.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FlatBuffers'
-  s.version          = '25.2.10'
+  s.version          = '25.12.19'
   s.summary          = 'FlatBuffers: Memory Efficient Serialization Library'
 
   s.description      = "FlatBuffers is a cross platform serialization library architected for
@@ -16,7 +16,7 @@ Pod::Spec.new do |s|
   s.ios.deployment_target = '11.0'
   s.osx.deployment_target = '10.14'
 
-  s.swift_version = '5.0'
+  s.swift_version = '5.10'
   s.source_files = 'swift/Sources/Flatbuffers/*.swift'
   s.pod_target_xcconfig = {
     'BUILD_LIBRARY_FOR_DISTRIBUTION' => 'YES'

Formatters.md

@@ -19,4 +19,4 @@ Swift uses swiftformat as it's formatter. Take a look at [how to install here](h
 
 ## Typescript
 
-Typescript uses eslint as it's linter. Take a look at [how to install here](https://eslint.org/docs/user-guide/getting-started). Run the following command `eslint ts/** --ext .ts` in the root directory of the project
+Typescript uses eslint as it's linter. Take a look at [how to install here](https://eslint.org/docs/user-guide/getting-started). Run the following command `eslint ts/** --ext .ts` in the root directory of the project

MODULE.bazel

@@ -1,13 +1,13 @@
 module(
     name = "flatbuffers",
-    version = "25.2.10",
+    version = "25.12.19",
     compatibility_level = 1,
     repo_name = "com_github_google_flatbuffers",
 )
 
 bazel_dep(
     name = "aspect_bazel_lib",
-    version = "2.11.0",
+    version = "2.14.0",
 )
 bazel_dep(
     name = "aspect_rules_esbuild",
@@ -15,24 +15,24 @@ bazel_dep(
 )
 bazel_dep(
     name = "aspect_rules_js",
-    version = "2.1.3",
+    version = "2.3.8",
 )
 bazel_dep(
     name = "aspect_rules_ts",
-    version = "3.4.0",
+    version = "3.6.0",
 )
 bazel_dep(
     name = "grpc",
-    version = "1.70.1",
+    version = "1.76.0",
     repo_name = "com_github_grpc_grpc",
 )
 bazel_dep(
     name = "platforms",
-    version = "0.0.10",
+    version = "0.0.11",
 )
 bazel_dep(
     name = "rules_cc",
-    version = "0.0.16",
+    version = "0.1.1",
 )
 bazel_dep(
     name = "rules_go",
@@ -49,7 +49,8 @@ bazel_dep(
 )
 bazel_dep(
     name = "rules_swift",
-    version = "2.1.1",
+    version = "3.1.2",
+    max_compatibility_level = 3,
     repo_name = "build_bazel_rules_swift",
 )
 bazel_dep(
@@ -62,9 +63,6 @@ npm.npm_translate_lock(
     name = "flatbuffers_npm",
     npmrc = "//:.npmrc",
     pnpm_lock = "//ts:pnpm-lock.yaml",
-    # Override the Bazel package where pnpm-lock.yaml is located and link
-    # to the specified package instead.
-    root_package = "ts",
     verify_node_modules_ignored = "//:.bazelignore",
 )
 use_repo(npm, "flatbuffers_npm")
@@ -72,6 +70,6 @@ use_repo(npm, "flatbuffers_npm")
 node = use_extension("@rules_nodejs//nodejs:extensions.bzl", "node")
 use_repo(node, "nodejs_linux_amd64")
 
-rules_ts_ext = use_extension("@aspect_rules_ts//ts:extensions.bzl", "ext")
+rules_ts_ext = use_extension("@aspect_rules_ts//ts:extensions.bzl", "ext", dev_dependency = True)
 rules_ts_ext.deps()
 use_repo(rules_ts_ext, "npm_typescript")

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.9
+// swift-tools-version:6.0
 /*
  * Copyright 2020 Google Inc. All rights reserved.
  *
@@ -20,17 +20,79 @@ import PackageDescription
 let package = Package(
   name: "FlatBuffers",
   platforms: [
-    .iOS(.v11),
+    .iOS(.v12),
     .macOS(.v10_14),
   ],
   products: [
     .library(
       name: "FlatBuffers",
       targets: ["FlatBuffers"]),
+    .library(
+      name: "FlexBuffers",
+      targets: ["FlexBuffers"]),
   ],
+  dependencies: .dependencies,
   targets: [
     .target(
       name: "FlatBuffers",
-      dependencies: [],
+      dependencies: ["Common"],
-      path: "swift/Sources"),
+      path: "swift/Sources/FlatBuffers",
-  ])
+      swiftSettings: .settings),
+    .target(
+      name: "FlexBuffers",
+      dependencies: ["Common"],
+      path: "swift/Sources/FlexBuffers",
+      swiftSettings: .settings),
+    .target(
+      name: "Common",
+      path: "swift/Sources/Common",
+      swiftSettings: .settings),
+    .testTarget(
+      name: "FlatbuffersTests",
+      dependencies: .dependencies,
+      path: "tests/swift/Tests/Flatbuffers"),
+    .testTarget(
+      name: "FlexbuffersTests",
+      dependencies: ["FlexBuffers"],
+      path: "tests/swift/Tests/Flexbuffers"),
+  ],
+  swiftLanguageModes: [.v6])
+
+extension Array where Element == SwiftSetting {
+  static var settings: [SwiftSetting] {
+    [.enableUpcomingFeature("ExistentialAny")]
+  }
+}
+
+extension Array where Element == Package.Dependency {
+  static var dependencies: [Package.Dependency] {
+    #if os(Windows)
+    []
+    #else
+    // Test only Dependency
+    [
+      .package(url: "https://github.com/grpc/grpc-swift-2.git", from: "2.0.0"),
+      .package(
+        url: "https://github.com/grpc/grpc-swift-nio-transport.git",
+        from: "2.0.0"),
+    ]
+    #endif
+  }
+}
+
+extension Array where Element == PackageDescription.Target.Dependency {
+  static var dependencies: [PackageDescription.Target.Dependency] {
+    #if os(Windows)
+    ["FlatBuffers"]
+    #else
+    // Test only Dependency
+    [
+      .product(name: "GRPCCore", package: "grpc-swift-2"),
+      .product(
+        name: "GRPCNIOTransportHTTP2",
+        package: "grpc-swift-nio-transport"),
+      "FlatBuffers",
+    ]
+    #endif
+  }
+}

README.md

@@ -1,4 +1,4 @@
-![logo](http://google.github.io/flatbuffers/fpl_logo_small.png) FlatBuffers
+![logo](https://flatbuffers.dev/assets/flatbuffers_logo.svg) FlatBuffers
 ===========
 
 ![Build status](https://github.com/google/flatbuffers/actions/workflows/build.yml/badge.svg?branch=master)
@@ -34,7 +34,7 @@ maximum memory efficiency. It allows you to directly access serialized data with
     ```
     ./flatc --cpp --rust monster.fbs
     ```
-    
+
     Which generates `monster_generated.h` and `monster_generated.rs` files.
 
 4. Serialize data
@@ -48,7 +48,7 @@ maximum memory efficiency. It allows you to directly access serialized data with
 6. Read the data
 
     Use the generated accessors to read the data from the serialized buffer.
-    
+
     It doesn't need to be the same language/schema version, FlatBuffers ensures the data is readable across languages and schema versions. See the [`Rust` example](https://github.com/google/flatbuffers/blob/master/samples/sample_binary.rs#L92-L106) reading the data written by `C++`.
 
 ## Documentation

android/app/proguard-rules.pro

@@ -1,21 +0,0 @@
-# Add project specific ProGuard rules here.
-# You can control the set of applied configuration files using the
-# proguardFiles setting in build.gradle.
-#
-# For more details, see
-#   http://developer.android.com/guide/developing/tools/proguard.html
-
-# If your project uses WebView with JS, uncomment the following
-# and specify the fully qualified class name to the JavaScript interface
-# class:
-#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
-#   public *;
-#}
-
-# Uncomment this to preserve the line number information for
-# debugging stack traces.
-#-keepattributes SourceFile,LineNumberTable
-
-# If you keep the line number information, uncomment this to
-# hide the original source file name.
-#-renamesourcefileattribute SourceFile

android/app/src/main/cpp/animals.cpp

@@ -15,25 +15,27 @@
  */
 
 #include <jni.h>
-#include <string>
 #include <search.h>
+
+#include <string>
+
 #include "generated/animal_generated.h"
 
 using namespace com::fbs::app;
 using namespace flatbuffers;
 
-extern "C" JNIEXPORT jbyteArray JNICALL Java_com_flatbuffers_app_MainActivity_createAnimalFromJNI(
+extern "C" JNIEXPORT jbyteArray JNICALL
-        JNIEnv* env,
+Java_com_flatbuffers_app_MainActivity_createAnimalFromJNI(JNIEnv* env,
-        jobject /* this */) {
+                                                          jobject /* this */) {
-    // create a new animal flatbuffers
+  // create a new animal flatbuffers
-    auto fb = FlatBufferBuilder(1024);
+  auto fb = FlatBufferBuilder(1024);
-    auto tiger = CreateAnimalDirect(fb, "Tiger", "Roar", 300);
+  auto tiger = CreateAnimalDirect(fb, "Tiger", "Roar", 300);
-    fb.Finish(tiger);
+  fb.Finish(tiger);
 
-    // copies it to a Java byte array.
+  // copies it to a Java byte array.
-    auto buf = reinterpret_cast<jbyte*>(fb.GetBufferPointer());
+  auto buf = reinterpret_cast<jbyte*>(fb.GetBufferPointer());
-    int size = fb.GetSize();
+  int size = fb.GetSize();
-    auto ret = env->NewByteArray(size);
+  auto ret = env->NewByteArray(size);
-    env->SetByteArrayRegion (ret, 0, fb.GetSize(), buf);
+  env->SetByteArrayRegion(ret, 0, fb.GetSize(), buf);
   return ret;
 }

android/app/src/main/cpp/generated/animal_generated.h

@@ -1,6 +1,5 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
-
 #ifndef FLATBUFFERS_GENERATED_ANIMAL_COM_FBS_APP_H_
 #define FLATBUFFERS_GENERATED_ANIMAL_COM_FBS_APP_H_
 
@@ -9,9 +8,9 @@
 // Ensure the included flatbuffers.h is the same version as when this file was
 // generated, otherwise it may not be compatible.
 static_assert(FLATBUFFERS_VERSION_MAJOR == 24 &&
-              FLATBUFFERS_VERSION_MINOR == 12 &&
+                  FLATBUFFERS_VERSION_MINOR == 12 &&
-              FLATBUFFERS_VERSION_REVISION == 23,
+                  FLATBUFFERS_VERSION_REVISION == 23,
-             "Non-compatible flatbuffers version included");
+              "Non-compatible flatbuffers version included");
 
 namespace com {
 namespace fbs {
@@ -27,29 +26,24 @@ struct Animal FLATBUFFERS_FINAL_CLASS : private ::flatbuffers::Table {
     VT_SOUND = 6,
     VT_WEIGHT = 8
   };
-  const ::flatbuffers::String *name() const {
+  const ::flatbuffers::String* name() const {
-    return GetPointer<const ::flatbuffers::String *>(VT_NAME);
+    return GetPointer<const ::flatbuffers::String*>(VT_NAME);
   }
-  const ::flatbuffers::String *sound() const {
+  const ::flatbuffers::String* sound() const {
-    return GetPointer<const ::flatbuffers::String *>(VT_SOUND);
+    return GetPointer<const ::flatbuffers::String*>(VT_SOUND);
   }
-  uint16_t weight() const {
+  uint16_t weight() const { return GetField<uint16_t>(VT_WEIGHT, 0); }
-    return GetField<uint16_t>(VT_WEIGHT, 0);
+  bool Verify(::flatbuffers::Verifier& verifier) const {
-  }
+    return VerifyTableStart(verifier) && VerifyOffset(verifier, VT_NAME) &&
-  bool Verify(::flatbuffers::Verifier &verifier) const {
+           verifier.VerifyString(name()) && VerifyOffset(verifier, VT_SOUND) &&
-    return VerifyTableStart(verifier) &&
-           VerifyOffset(verifier, VT_NAME) &&
-           verifier.VerifyString(name()) &&
-           VerifyOffset(verifier, VT_SOUND) &&
            verifier.VerifyString(sound()) &&
-           VerifyField<uint16_t>(verifier, VT_WEIGHT, 2) &&
+           VerifyField<uint16_t>(verifier, VT_WEIGHT, 2) && verifier.EndTable();
-           verifier.EndTable();
   }
 };
 
 struct AnimalBuilder {
   typedef Animal Table;
-  ::flatbuffers::FlatBufferBuilder &fbb_;
+  ::flatbuffers::FlatBufferBuilder& fbb_;
   ::flatbuffers::uoffset_t start_;
   void add_name(::flatbuffers::Offset<::flatbuffers::String> name) {
     fbb_.AddOffset(Animal::VT_NAME, name);
@@ -60,8 +54,7 @@ struct AnimalBuilder {
   void add_weight(uint16_t weight) {
     fbb_.AddElement<uint16_t>(Animal::VT_WEIGHT, weight, 0);
   }
-  explicit AnimalBuilder(::flatbuffers::FlatBufferBuilder &_fbb)
+  explicit AnimalBuilder(::flatbuffers::FlatBufferBuilder& _fbb) : fbb_(_fbb) {
-        : fbb_(_fbb) {
     start_ = fbb_.StartTable();
   }
   ::flatbuffers::Offset<Animal> Finish() {
@@ -72,7 +65,7 @@ struct AnimalBuilder {
 };
 
 inline ::flatbuffers::Offset<Animal> CreateAnimal(
-    ::flatbuffers::FlatBufferBuilder &_fbb,
+    ::flatbuffers::FlatBufferBuilder& _fbb,
     ::flatbuffers::Offset<::flatbuffers::String> name = 0,
     ::flatbuffers::Offset<::flatbuffers::String> sound = 0,
     uint16_t weight = 0) {
@@ -84,45 +77,37 @@ inline ::flatbuffers::Offset<Animal> CreateAnimal(
 }
 
 inline ::flatbuffers::Offset<Animal> CreateAnimalDirect(
-    ::flatbuffers::FlatBufferBuilder &_fbb,
+    ::flatbuffers::FlatBufferBuilder& _fbb, const char* name = nullptr,
-    const char *name = nullptr,
+    const char* sound = nullptr, uint16_t weight = 0) {
-    const char *sound = nullptr,
-    uint16_t weight = 0) {
   auto name__ = name ? _fbb.CreateString(name) : 0;
   auto sound__ = sound ? _fbb.CreateString(sound) : 0;
-  return com::fbs::app::CreateAnimal(
+  return com::fbs::app::CreateAnimal(_fbb, name__, sound__, weight);
-      _fbb,
-      name__,
-      sound__,
-      weight);
 }
 
-inline const com::fbs::app::Animal *GetAnimal(const void *buf) {
+inline const com::fbs::app::Animal* GetAnimal(const void* buf) {
   return ::flatbuffers::GetRoot<com::fbs::app::Animal>(buf);
 }
 
-inline const com::fbs::app::Animal *GetSizePrefixedAnimal(const void *buf) {
+inline const com::fbs::app::Animal* GetSizePrefixedAnimal(const void* buf) {
   return ::flatbuffers::GetSizePrefixedRoot<com::fbs::app::Animal>(buf);
 }
 
-inline bool VerifyAnimalBuffer(
+inline bool VerifyAnimalBuffer(::flatbuffers::Verifier& verifier) {
-    ::flatbuffers::Verifier &verifier) {
   return verifier.VerifyBuffer<com::fbs::app::Animal>(nullptr);
 }
 
-inline bool VerifySizePrefixedAnimalBuffer(
+inline bool VerifySizePrefixedAnimalBuffer(::flatbuffers::Verifier& verifier) {
-    ::flatbuffers::Verifier &verifier) {
   return verifier.VerifySizePrefixedBuffer<com::fbs::app::Animal>(nullptr);
 }
 
 inline void FinishAnimalBuffer(
-    ::flatbuffers::FlatBufferBuilder &fbb,
+    ::flatbuffers::FlatBufferBuilder& fbb,
     ::flatbuffers::Offset<com::fbs::app::Animal> root) {
   fbb.Finish(root);
 }
 
 inline void FinishSizePrefixedAnimalBuffer(
-    ::flatbuffers::FlatBufferBuilder &fbb,
+    ::flatbuffers::FlatBufferBuilder& fbb,
     ::flatbuffers::Offset<com::fbs::app::Animal> root) {
   fbb.FinishSizePrefixed(root);
 }

android/app/src/main/java/com/flatbuffers/app/MainActivity.kt

@@ -1,9 +1,9 @@
 package com.flatbuffers.app
 
 import android.annotation.SuppressLint
-import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
 import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
 import com.fbs.app.Animal
 import com.google.flatbuffers.FlatBufferBuilder
 import java.nio.ByteBuffer
@@ -27,14 +27,15 @@ class MainActivity : AppCompatActivity() {
   private external fun createAnimalFromJNI(): ByteArray
 
   // Create a "Cow" Animal flatbuffers from Kotlin
-  private fun createAnimalFromKotlin():Animal {
+  private fun createAnimalFromKotlin(): Animal {
     val fb = FlatBufferBuilder(100)
-    val cowOffset = Animal.createAnimal(
+    val cowOffset =
-      builder = fb,
+      Animal.createAnimal(
-      nameOffset = fb.createString("Cow"),
+        builder = fb,
-      soundOffset = fb.createString("Moo"),
+        nameOffset = fb.createString("Cow"),
-      weight = 720u
+        soundOffset = fb.createString("Moo"),
-    )
+        weight = 720u,
+      )
     fb.finish(cowOffset)
     return Animal.getRootAsAnimal(fb.dataBuffer())
   }

android/app/src/main/java/generated/com/fbs/app/Animal.kt

@@ -2,83 +2,101 @@
 
 package com.fbs.app
 
-import com.google.flatbuffers.BaseVector
-import com.google.flatbuffers.BooleanVector
-import com.google.flatbuffers.ByteVector
 import com.google.flatbuffers.Constants
-import com.google.flatbuffers.DoubleVector
 import com.google.flatbuffers.FlatBufferBuilder
-import com.google.flatbuffers.FloatVector
-import com.google.flatbuffers.LongVector
-import com.google.flatbuffers.StringVector
-import com.google.flatbuffers.Struct
 import com.google.flatbuffers.Table
-import com.google.flatbuffers.UnionVector
 import java.nio.ByteBuffer
 import java.nio.ByteOrder
-import kotlin.math.sign
 
 @Suppress("unused")
 @kotlin.ExperimentalUnsignedTypes
 class Animal : Table() {
 
-    fun __init(_i: Int, _bb: ByteBuffer)  {
+  fun __init(_i: Int, _bb: ByteBuffer) {
-        __reset(_i, _bb)
+    __reset(_i, _bb)
+  }
+
+  fun __assign(_i: Int, _bb: ByteBuffer): Animal {
+    __init(_i, _bb)
+    return this
+  }
+
+  val name: String?
+    get() {
+      val o = __offset(4)
+      return if (o != 0) {
+        __string(o + bb_pos)
+      } else {
+        null
+      }
     }
-    fun __assign(_i: Int, _bb: ByteBuffer) : Animal {
+
-        __init(_i, _bb)
+  val nameAsByteBuffer: ByteBuffer
-        return this
+    get() = __vector_as_bytebuffer(4, 1)
+
+  fun nameInByteBuffer(_bb: ByteBuffer): ByteBuffer = __vector_in_bytebuffer(_bb, 4, 1)
+
+  val sound: String?
+    get() {
+      val o = __offset(6)
+      return if (o != 0) {
+        __string(o + bb_pos)
+      } else {
+        null
+      }
     }
-    val name : String?
+
-        get() {
+  val soundAsByteBuffer: ByteBuffer
-            val o = __offset(4)
+    get() = __vector_as_bytebuffer(6, 1)
-            return if (o != 0) {
+
-                __string(o + bb_pos)
+  fun soundInByteBuffer(_bb: ByteBuffer): ByteBuffer = __vector_in_bytebuffer(_bb, 6, 1)
-            } else {
+
-                null
+  val weight: UShort
-            }
+    get() {
-        }
+      val o = __offset(8)
-    val nameAsByteBuffer : ByteBuffer get() = __vector_as_bytebuffer(4, 1)
+      return if (o != 0) bb.getShort(o + bb_pos).toUShort() else 0u
-    fun nameInByteBuffer(_bb: ByteBuffer) : ByteBuffer = __vector_in_bytebuffer(_bb, 4, 1)
-    val sound : String?
-        get() {
-            val o = __offset(6)
-            return if (o != 0) {
-                __string(o + bb_pos)
-            } else {
-                null
-            }
-        }
-    val soundAsByteBuffer : ByteBuffer get() = __vector_as_bytebuffer(6, 1)
-    fun soundInByteBuffer(_bb: ByteBuffer) : ByteBuffer = __vector_in_bytebuffer(_bb, 6, 1)
-    val weight : UShort
-        get() {
-            val o = __offset(8)
-            return if(o != 0) bb.getShort(o + bb_pos).toUShort() else 0u
-        }
-    companion object {
-        fun validateVersion() = Constants.FLATBUFFERS_25_2_10()
-        fun getRootAsAnimal(_bb: ByteBuffer): Animal = getRootAsAnimal(_bb, Animal())
-        fun getRootAsAnimal(_bb: ByteBuffer, obj: Animal): Animal {
-            _bb.order(ByteOrder.LITTLE_ENDIAN)
-            return (obj.__assign(_bb.getInt(_bb.position()) + _bb.position(), _bb))
-        }
-        fun createAnimal(builder: FlatBufferBuilder, nameOffset: Int, soundOffset: Int, weight: UShort) : Int {
-            builder.startTable(3)
-            addSound(builder, soundOffset)
-            addName(builder, nameOffset)
-            addWeight(builder, weight)
-            return endAnimal(builder)
-        }
-        fun startAnimal(builder: FlatBufferBuilder) = builder.startTable(3)
-        fun addName(builder: FlatBufferBuilder, name: Int) = builder.addOffset(0, name, 0)
-        fun addSound(builder: FlatBufferBuilder, sound: Int) = builder.addOffset(1, sound, 0)
-        fun addWeight(builder: FlatBufferBuilder, weight: UShort) = builder.addShort(2, weight.toShort(), 0)
-        fun endAnimal(builder: FlatBufferBuilder) : Int {
-            val o = builder.endTable()
-            return o
-        }
-        fun finishAnimalBuffer(builder: FlatBufferBuilder, offset: Int) = builder.finish(offset)
-        fun finishSizePrefixedAnimalBuffer(builder: FlatBufferBuilder, offset: Int) = builder.finishSizePrefixed(offset)
     }
+
+  companion object {
+    fun validateVersion() = Constants.FLATBUFFERS_25_12_19()
+
+    fun getRootAsAnimal(_bb: ByteBuffer): Animal = getRootAsAnimal(_bb, Animal())
+
+    fun getRootAsAnimal(_bb: ByteBuffer, obj: Animal): Animal {
+      _bb.order(ByteOrder.LITTLE_ENDIAN)
+      return (obj.__assign(_bb.getInt(_bb.position()) + _bb.position(), _bb))
+    }
+
+    fun createAnimal(
+      builder: FlatBufferBuilder,
+      nameOffset: Int,
+      soundOffset: Int,
+      weight: UShort,
+    ): Int {
+      builder.startTable(3)
+      addSound(builder, soundOffset)
+      addName(builder, nameOffset)
+      addWeight(builder, weight)
+      return endAnimal(builder)
+    }
+
+    fun startAnimal(builder: FlatBufferBuilder) = builder.startTable(3)
+
+    fun addName(builder: FlatBufferBuilder, name: Int) = builder.addOffset(0, name, 0)
+
+    fun addSound(builder: FlatBufferBuilder, sound: Int) = builder.addOffset(1, sound, 0)
+
+    fun addWeight(builder: FlatBufferBuilder, weight: UShort) =
+      builder.addShort(2, weight.toShort(), 0)
+
+    fun endAnimal(builder: FlatBufferBuilder): Int {
+      val o = builder.endTable()
+      return o
+    }
+
+    fun finishAnimalBuffer(builder: FlatBufferBuilder, offset: Int) = builder.finish(offset)
+
+    fun finishSizePrefixedAnimalBuffer(builder: FlatBufferBuilder, offset: Int) =
+      builder.finishSizePrefixed(offset)
+  }
 }

benchmarks/cpp/bench.h

@@ -8,12 +8,12 @@ struct Bench {
 
   inline void Add(int64_t value) { sum += value; }
 
-  virtual uint8_t *Encode(void *buf, int64_t &len) = 0;
+  virtual uint8_t* Encode(void* buf, int64_t& len) = 0;
-  virtual void *Decode(void *buf, int64_t len) = 0;
+  virtual void* Decode(void* buf, int64_t len) = 0;
-  virtual int64_t Use(void *decoded) = 0;
+  virtual int64_t Use(void* decoded) = 0;
-  virtual void Dealloc(void *decoded) = 0;
+  virtual void Dealloc(void* decoded) = 0;
 
   int64_t sum = 0;
 };
 
-#endif // BENCHMARKS_CPP_BENCH_H_
+#endif  // BENCHMARKS_CPP_BENCH_H_

benchmarks/cpp/benchmark_main.cpp

@@ -5,8 +5,8 @@
 #include "benchmarks/cpp/flatbuffers/fb_bench.h"
 #include "benchmarks/cpp/raw/raw_bench.h"
 
-static inline void Encode(benchmark::State &state,
+static inline void Encode(benchmark::State& state,
-                          std::unique_ptr<Bench> &bench, uint8_t *buffer) {
+                          std::unique_ptr<Bench>& bench, uint8_t* buffer) {
   int64_t length;
   for (auto _ : state) {
     bench->Encode(buffer, length);
@@ -14,31 +14,33 @@ static inline void Encode(benchmark::State &state,
   }
 }
 
-static inline void Decode(benchmark::State &state,
+static inline void Decode(benchmark::State& state,
-                          std::unique_ptr<Bench> &bench, uint8_t *buffer) {
+                          std::unique_ptr<Bench>& bench, uint8_t* buffer) {
   int64_t length;
-  uint8_t *encoded = bench->Encode(buffer, length);
+  uint8_t* encoded = bench->Encode(buffer, length);
 
   for (auto _ : state) {
-    void *decoded = bench->Decode(encoded, length);
+    void* decoded = bench->Decode(encoded, length);
     benchmark::DoNotOptimize(decoded);
   }
 }
 
-static inline void Use(benchmark::State &state, std::unique_ptr<Bench> &bench,
+static inline void Use(benchmark::State& state, std::unique_ptr<Bench>& bench,
-                       uint8_t *buffer, int64_t check_sum) {
+                       uint8_t* buffer, int64_t check_sum) {
   int64_t length;
-  uint8_t *encoded = bench->Encode(buffer, length);
+  uint8_t* encoded = bench->Encode(buffer, length);
-  void *decoded = bench->Decode(encoded, length);
+  void* decoded = bench->Decode(encoded, length);
 
   int64_t sum = 0;
 
-  for (auto _ : state) { sum = bench->Use(decoded); }
+  for (auto _ : state) {
+    sum = bench->Use(decoded);
+  }
 
   EXPECT_EQ(sum, check_sum);
 }
 
-static void BM_Flatbuffers_Encode(benchmark::State &state) {
+static void BM_Flatbuffers_Encode(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 
@@ -48,7 +50,7 @@ static void BM_Flatbuffers_Encode(benchmark::State &state) {
 }
 BENCHMARK(BM_Flatbuffers_Encode);
 
-static void BM_Flatbuffers_Decode(benchmark::State &state) {
+static void BM_Flatbuffers_Decode(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 
@@ -58,7 +60,7 @@ static void BM_Flatbuffers_Decode(benchmark::State &state) {
 }
 BENCHMARK(BM_Flatbuffers_Decode);
 
-static void BM_Flatbuffers_Use(benchmark::State &state) {
+static void BM_Flatbuffers_Use(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 
@@ -68,7 +70,7 @@ static void BM_Flatbuffers_Use(benchmark::State &state) {
 }
 BENCHMARK(BM_Flatbuffers_Use);
 
-static void BM_Raw_Encode(benchmark::State &state) {
+static void BM_Raw_Encode(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 
@@ -77,7 +79,7 @@ static void BM_Raw_Encode(benchmark::State &state) {
 }
 BENCHMARK(BM_Raw_Encode);
 
-static void BM_Raw_Decode(benchmark::State &state) {
+static void BM_Raw_Decode(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 
@@ -86,7 +88,7 @@ static void BM_Raw_Decode(benchmark::State &state) {
 }
 BENCHMARK(BM_Raw_Decode);
 
-static void BM_Raw_Use(benchmark::State &state) {
+static void BM_Raw_Use(benchmark::State& state) {
   const int64_t kBufferLength = 1024;
   uint8_t buffer[kBufferLength];
 

benchmarks/cpp/flatbuffers/bench_generated.h

@@ -1,6 +1,5 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
-
 #ifndef FLATBUFFERS_GENERATED_BENCH_BENCHMARKS_FLATBUFFERS_H_
 #define FLATBUFFERS_GENERATED_BENCH_BENCHMARKS_FLATBUFFERS_H_
 
@@ -9,9 +8,9 @@
 // Ensure the included flatbuffers.h is the same version as when this file was
 // generated, otherwise it may not be compatible.
 static_assert(FLATBUFFERS_VERSION_MAJOR == 24 &&
-              FLATBUFFERS_VERSION_MINOR == 12 &&
+                  FLATBUFFERS_VERSION_MINOR == 12 &&
-              FLATBUFFERS_VERSION_REVISION == 23,
+                  FLATBUFFERS_VERSION_REVISION == 23,
-             "Non-compatible flatbuffers version included");
+              "Non-compatible flatbuffers version included");
 
 namespace benchmarks_flatbuffers {
 
@@ -34,25 +33,16 @@ enum Enum : int16_t {
 };
 
 inline const Enum (&EnumValuesEnum())[3] {
-  static const Enum values[] = {
+  static const Enum values[] = {Enum_Apples, Enum_Pears, Enum_Bananas};
-    Enum_Apples,
-    Enum_Pears,
-    Enum_Bananas
-  };
   return values;
 }
 
-inline const char * const *EnumNamesEnum() {
+inline const char* const* EnumNamesEnum() {
-  static const char * const names[4] = {
+  static const char* const names[4] = {"Apples", "Pears", "Bananas", nullptr};
-    "Apples",
-    "Pears",
-    "Bananas",
-    nullptr
-  };
   return names;
 }
 
-inline const char *EnumNameEnum(Enum e) {
+inline const char* EnumNameEnum(Enum e) {
   if (flatbuffers::IsOutRange(e, Enum_Apples, Enum_Bananas)) return "";
   const size_t index = static_cast<size_t>(e);
   return EnumNamesEnum()[index];
@@ -67,12 +57,7 @@ FLATBUFFERS_MANUALLY_ALIGNED_STRUCT(8) Foo FLATBUFFERS_FINAL_CLASS {
   uint32_t length_;
 
  public:
-  Foo()
+  Foo() : id_(0), count_(0), prefix_(0), padding0__(0), length_(0) {
-      : id_(0),
-        count_(0),
-        prefix_(0),
-        padding0__(0),
-        length_(0) {
     (void)padding0__;
   }
   Foo(uint64_t _id, int16_t _count, int8_t _prefix, uint32_t _length)
@@ -83,18 +68,10 @@ FLATBUFFERS_MANUALLY_ALIGNED_STRUCT(8) Foo FLATBUFFERS_FINAL_CLASS {
         length_(flatbuffers::EndianScalar(_length)) {
     (void)padding0__;
   }
-  uint64_t id() const {
+  uint64_t id() const { return flatbuffers::EndianScalar(id_); }
-    return flatbuffers::EndianScalar(id_);
+  int16_t count() const { return flatbuffers::EndianScalar(count_); }
-  }
+  int8_t prefix() const { return flatbuffers::EndianScalar(prefix_); }
-  int16_t count() const {
+  uint32_t length() const { return flatbuffers::EndianScalar(length_); }
-    return flatbuffers::EndianScalar(count_);
-  }
-  int8_t prefix() const {
-    return flatbuffers::EndianScalar(prefix_);
-  }
-  uint32_t length() const {
-    return flatbuffers::EndianScalar(length_);
-  }
 };
 FLATBUFFERS_STRUCT_END(Foo, 16);
 
@@ -104,20 +81,17 @@ FLATBUFFERS_MANUALLY_ALIGNED_STRUCT(8) Bar FLATBUFFERS_FINAL_CLASS {
   int32_t time_;
   float ratio_;
   uint16_t size_;
-  int16_t padding0__;  int32_t padding1__;
+  int16_t padding0__;
+  int32_t padding1__;
 
  public:
   Bar()
-      : parent_(),
+      : parent_(), time_(0), ratio_(0), size_(0), padding0__(0), padding1__(0) {
-        time_(0),
-        ratio_(0),
-        size_(0),
-        padding0__(0),
-        padding1__(0) {
     (void)padding0__;
     (void)padding1__;
   }
-  Bar(const benchmarks_flatbuffers::Foo &_parent, int32_t _time, float _ratio, uint16_t _size)
+  Bar(const benchmarks_flatbuffers::Foo& _parent, int32_t _time, float _ratio,
+      uint16_t _size)
       : parent_(_parent),
         time_(flatbuffers::EndianScalar(_time)),
         ratio_(flatbuffers::EndianScalar(_ratio)),
@@ -127,18 +101,10 @@ FLATBUFFERS_MANUALLY_ALIGNED_STRUCT(8) Bar FLATBUFFERS_FINAL_CLASS {
     (void)padding0__;
     (void)padding1__;
   }
-  const benchmarks_flatbuffers::Foo &parent() const {
+  const benchmarks_flatbuffers::Foo& parent() const { return parent_; }
-    return parent_;
+  int32_t time() const { return flatbuffers::EndianScalar(time_); }
-  }
+  float ratio() const { return flatbuffers::EndianScalar(ratio_); }
-  int32_t time() const {
+  uint16_t size() const { return flatbuffers::EndianScalar(size_); }
-    return flatbuffers::EndianScalar(time_);
-  }
-  float ratio() const {
-    return flatbuffers::EndianScalar(ratio_);
-  }
-  uint16_t size() const {
-    return flatbuffers::EndianScalar(size_);
-  }
 };
 FLATBUFFERS_STRUCT_END(Bar, 32);
 
@@ -150,34 +116,28 @@ struct FooBar FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
     VT_RATING = 8,
     VT_POSTFIX = 10
   };
-  const benchmarks_flatbuffers::Bar *sibling() const {
+  const benchmarks_flatbuffers::Bar* sibling() const {
-    return GetStruct<const benchmarks_flatbuffers::Bar *>(VT_SIBLING);
+    return GetStruct<const benchmarks_flatbuffers::Bar*>(VT_SIBLING);
   }
-  const flatbuffers::String *name() const {
+  const flatbuffers::String* name() const {
-    return GetPointer<const flatbuffers::String *>(VT_NAME);
+    return GetPointer<const flatbuffers::String*>(VT_NAME);
   }
-  double rating() const {
+  double rating() const { return GetField<double>(VT_RATING, 0.0); }
-    return GetField<double>(VT_RATING, 0.0);
+  uint8_t postfix() const { return GetField<uint8_t>(VT_POSTFIX, 0); }
-  }
+  bool Verify(flatbuffers::Verifier& verifier) const {
-  uint8_t postfix() const {
-    return GetField<uint8_t>(VT_POSTFIX, 0);
-  }
-  bool Verify(flatbuffers::Verifier &verifier) const {
     return VerifyTableStart(verifier) &&
            VerifyField<benchmarks_flatbuffers::Bar>(verifier, VT_SIBLING, 8) &&
-           VerifyOffset(verifier, VT_NAME) &&
+           VerifyOffset(verifier, VT_NAME) && verifier.VerifyString(name()) &&
-           verifier.VerifyString(name()) &&
            VerifyField<double>(verifier, VT_RATING, 8) &&
-           VerifyField<uint8_t>(verifier, VT_POSTFIX, 1) &&
+           VerifyField<uint8_t>(verifier, VT_POSTFIX, 1) && verifier.EndTable();
-           verifier.EndTable();
   }
 };
 
 struct FooBarBuilder {
   typedef FooBar Table;
-  flatbuffers::FlatBufferBuilder &fbb_;
+  flatbuffers::FlatBufferBuilder& fbb_;
   flatbuffers::uoffset_t start_;
-  void add_sibling(const benchmarks_flatbuffers::Bar *sibling) {
+  void add_sibling(const benchmarks_flatbuffers::Bar* sibling) {
     fbb_.AddStruct(FooBar::VT_SIBLING, sibling);
   }
   void add_name(flatbuffers::Offset<flatbuffers::String> name) {
@@ -189,8 +149,7 @@ struct FooBarBuilder {
   void add_postfix(uint8_t postfix) {
     fbb_.AddElement<uint8_t>(FooBar::VT_POSTFIX, postfix, 0);
   }
-  explicit FooBarBuilder(flatbuffers::FlatBufferBuilder &_fbb)
+  explicit FooBarBuilder(flatbuffers::FlatBufferBuilder& _fbb) : fbb_(_fbb) {
-        : fbb_(_fbb) {
     start_ = fbb_.StartTable();
   }
   flatbuffers::Offset<FooBar> Finish() {
@@ -201,10 +160,9 @@ struct FooBarBuilder {
 };
 
 inline flatbuffers::Offset<FooBar> CreateFooBar(
-    flatbuffers::FlatBufferBuilder &_fbb,
+    flatbuffers::FlatBufferBuilder& _fbb,
-    const benchmarks_flatbuffers::Bar *sibling = nullptr,
+    const benchmarks_flatbuffers::Bar* sibling = nullptr,
-    flatbuffers::Offset<flatbuffers::String> name = 0,
+    flatbuffers::Offset<flatbuffers::String> name = 0, double rating = 0.0,
-    double rating = 0.0,
     uint8_t postfix = 0) {
   FooBarBuilder builder_(_fbb);
   builder_.add_rating(rating);
@@ -215,18 +173,12 @@ inline flatbuffers::Offset<FooBar> CreateFooBar(
 }
 
 inline flatbuffers::Offset<FooBar> CreateFooBarDirect(
-    flatbuffers::FlatBufferBuilder &_fbb,
+    flatbuffers::FlatBufferBuilder& _fbb,
-    const benchmarks_flatbuffers::Bar *sibling = nullptr,
+    const benchmarks_flatbuffers::Bar* sibling = nullptr,
-    const char *name = nullptr,
+    const char* name = nullptr, double rating = 0.0, uint8_t postfix = 0) {
-    double rating = 0.0,
-    uint8_t postfix = 0) {
   auto name__ = name ? _fbb.CreateString(name) : 0;
-  return benchmarks_flatbuffers::CreateFooBar(
+  return benchmarks_flatbuffers::CreateFooBar(_fbb, sibling, name__, rating,
-      _fbb,
+                                              postfix);
-      sibling,
-      name__,
-      rating,
-      postfix);
 }
 
 struct FooBarContainer FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
@@ -237,49 +189,53 @@ struct FooBarContainer FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
     VT_FRUIT = 8,
     VT_LOCATION = 10
   };
-  const flatbuffers::Vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>> *list() const {
+  const flatbuffers::Vector<
-    return GetPointer<const flatbuffers::Vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>> *>(VT_LIST);
+      flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>*
-  }
+  list() const {
-  bool initialized() const {
+    return GetPointer<const flatbuffers::Vector<
-    return GetField<uint8_t>(VT_INITIALIZED, 0) != 0;
+        flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>*>(VT_LIST);
   }
+  bool initialized() const { return GetField<uint8_t>(VT_INITIALIZED, 0) != 0; }
   benchmarks_flatbuffers::Enum fruit() const {
-    return static_cast<benchmarks_flatbuffers::Enum>(GetField<int16_t>(VT_FRUIT, 0));
+    return static_cast<benchmarks_flatbuffers::Enum>(
+        GetField<int16_t>(VT_FRUIT, 0));
   }
-  const flatbuffers::String *location() const {
+  const flatbuffers::String* location() const {
-    return GetPointer<const flatbuffers::String *>(VT_LOCATION);
+    return GetPointer<const flatbuffers::String*>(VT_LOCATION);
   }
-  bool Verify(flatbuffers::Verifier &verifier) const {
+  bool Verify(flatbuffers::Verifier& verifier) const {
-    return VerifyTableStart(verifier) &&
+    return VerifyTableStart(verifier) && VerifyOffset(verifier, VT_LIST) &&
-           VerifyOffset(verifier, VT_LIST) &&
            verifier.VerifyVector(list()) &&
            verifier.VerifyVectorOfTables(list()) &&
            VerifyField<uint8_t>(verifier, VT_INITIALIZED, 1) &&
            VerifyField<int16_t>(verifier, VT_FRUIT, 2) &&
            VerifyOffset(verifier, VT_LOCATION) &&
-           verifier.VerifyString(location()) &&
+           verifier.VerifyString(location()) && verifier.EndTable();
-           verifier.EndTable();
   }
 };
 
 struct FooBarContainerBuilder {
   typedef FooBarContainer Table;
-  flatbuffers::FlatBufferBuilder &fbb_;
+  flatbuffers::FlatBufferBuilder& fbb_;
   flatbuffers::uoffset_t start_;
-  void add_list(flatbuffers::Offset<flatbuffers::Vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>> list) {
+  void add_list(flatbuffers::Offset<flatbuffers::Vector<
+                    flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>>
+                    list) {
     fbb_.AddOffset(FooBarContainer::VT_LIST, list);
   }
   void add_initialized(bool initialized) {
-    fbb_.AddElement<uint8_t>(FooBarContainer::VT_INITIALIZED, static_cast<uint8_t>(initialized), 0);
+    fbb_.AddElement<uint8_t>(FooBarContainer::VT_INITIALIZED,
+                             static_cast<uint8_t>(initialized), 0);
   }
   void add_fruit(benchmarks_flatbuffers::Enum fruit) {
-    fbb_.AddElement<int16_t>(FooBarContainer::VT_FRUIT, static_cast<int16_t>(fruit), 0);
+    fbb_.AddElement<int16_t>(FooBarContainer::VT_FRUIT,
+                             static_cast<int16_t>(fruit), 0);
   }
   void add_location(flatbuffers::Offset<flatbuffers::String> location) {
     fbb_.AddOffset(FooBarContainer::VT_LOCATION, location);
   }
-  explicit FooBarContainerBuilder(flatbuffers::FlatBufferBuilder &_fbb)
+  explicit FooBarContainerBuilder(flatbuffers::FlatBufferBuilder& _fbb)
-        : fbb_(_fbb) {
+      : fbb_(_fbb) {
     start_ = fbb_.StartTable();
   }
   flatbuffers::Offset<FooBarContainer> Finish() {
@@ -290,8 +246,10 @@ struct FooBarContainerBuilder {
 };
 
 inline flatbuffers::Offset<FooBarContainer> CreateFooBarContainer(
-    flatbuffers::FlatBufferBuilder &_fbb,
+    flatbuffers::FlatBufferBuilder& _fbb,
-    flatbuffers::Offset<flatbuffers::Vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>> list = 0,
+    flatbuffers::Offset<flatbuffers::Vector<
+        flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>>
+        list = 0,
     bool initialized = false,
     benchmarks_flatbuffers::Enum fruit = benchmarks_flatbuffers::Enum_Apples,
     flatbuffers::Offset<flatbuffers::String> location = 0) {
@@ -304,47 +262,52 @@ inline flatbuffers::Offset<FooBarContainer> CreateFooBarContainer(
 }
 
 inline flatbuffers::Offset<FooBarContainer> CreateFooBarContainerDirect(
-    flatbuffers::FlatBufferBuilder &_fbb,
+    flatbuffers::FlatBufferBuilder& _fbb,
-    const std::vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>> *list = nullptr,
+    const std::vector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>*
+        list = nullptr,
     bool initialized = false,
     benchmarks_flatbuffers::Enum fruit = benchmarks_flatbuffers::Enum_Apples,
-    const char *location = nullptr) {
+    const char* location = nullptr) {
-  auto list__ = list ? _fbb.CreateVector<flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>(*list) : 0;
+  auto list__ =
+      list ? _fbb.CreateVector<
+                 flatbuffers::Offset<benchmarks_flatbuffers::FooBar>>(*list)
+           : 0;
   auto location__ = location ? _fbb.CreateString(location) : 0;
   return benchmarks_flatbuffers::CreateFooBarContainer(
-      _fbb,
+      _fbb, list__, initialized, fruit, location__);
-      list__,
-      initialized,
-      fruit,
-      location__);
 }
 
-inline const benchmarks_flatbuffers::FooBarContainer *GetFooBarContainer(const void *buf) {
+inline const benchmarks_flatbuffers::FooBarContainer* GetFooBarContainer(
+    const void* buf) {
   return flatbuffers::GetRoot<benchmarks_flatbuffers::FooBarContainer>(buf);
 }
 
-inline const benchmarks_flatbuffers::FooBarContainer *GetSizePrefixedFooBarContainer(const void *buf) {
+inline const benchmarks_flatbuffers::FooBarContainer*
-  return flatbuffers::GetSizePrefixedRoot<benchmarks_flatbuffers::FooBarContainer>(buf);
+GetSizePrefixedFooBarContainer(const void* buf) {
+  return flatbuffers::GetSizePrefixedRoot<
+      benchmarks_flatbuffers::FooBarContainer>(buf);
 }
 
-inline bool VerifyFooBarContainerBuffer(
+inline bool VerifyFooBarContainerBuffer(flatbuffers::Verifier& verifier) {
-    flatbuffers::Verifier &verifier) {
+  return verifier.VerifyBuffer<benchmarks_flatbuffers::FooBarContainer>(
-  return verifier.VerifyBuffer<benchmarks_flatbuffers::FooBarContainer>(nullptr);
+      nullptr);
 }
 
 inline bool VerifySizePrefixedFooBarContainerBuffer(
-    flatbuffers::Verifier &verifier) {
+    flatbuffers::Verifier& verifier) {
-  return verifier.VerifySizePrefixedBuffer<benchmarks_flatbuffers::FooBarContainer>(nullptr);
+  return verifier
+      .VerifySizePrefixedBuffer<benchmarks_flatbuffers::FooBarContainer>(
+          nullptr);
 }
 
 inline void FinishFooBarContainerBuffer(
-    flatbuffers::FlatBufferBuilder &fbb,
+    flatbuffers::FlatBufferBuilder& fbb,
     flatbuffers::Offset<benchmarks_flatbuffers::FooBarContainer> root) {
   fbb.Finish(root);
 }
 
 inline void FinishSizePrefixedFooBarContainerBuffer(
-    flatbuffers::FlatBufferBuilder &fbb,
+    flatbuffers::FlatBufferBuilder& fbb,
     flatbuffers::Offset<benchmarks_flatbuffers::FooBarContainer> root) {
   fbb.FinishSizePrefixed(root);
 }

benchmarks/cpp/flatbuffers/fb_bench.cpp

@@ -13,10 +13,10 @@ using namespace benchmarks_flatbuffers;
 namespace {
 
 struct FlatBufferBench : Bench {
-  explicit FlatBufferBench(int64_t initial_size, Allocator *allocator)
+  explicit FlatBufferBench(int64_t initial_size, Allocator* allocator)
       : fbb(initial_size, allocator, false) {}
 
-  uint8_t *Encode(void *, int64_t &len) override {
+  uint8_t* Encode(void*, int64_t& len) override {
     fbb.Clear();
 
     const int kVectorLength = 3;
@@ -40,7 +40,7 @@ struct FlatBufferBench : Bench {
     return fbb.GetBufferPointer();
   }
 
-  int64_t Use(void *decoded) override {
+  int64_t Use(void* decoded) override {
     sum = 0;
     auto foobarcontainer = GetFooBarContainer(decoded);
     sum = 0;
@@ -56,7 +56,7 @@ struct FlatBufferBench : Bench {
       Add(static_cast<int64_t>(bar->ratio()));
       Add(bar->size());
       Add(bar->time());
-      auto &foo = bar->parent();
+      auto& foo = bar->parent();
       Add(foo.count());
       Add(foo.id());
       Add(foo.length());
@@ -65,8 +65,8 @@ struct FlatBufferBench : Bench {
     return sum;
   }
 
-  void *Decode(void *buffer, int64_t) override { return buffer; }
+  void* Decode(void* buffer, int64_t) override { return buffer; }
-  void Dealloc(void *) override {};
+  void Dealloc(void*) override {};
 
   FlatBufferBuilder fbb;
 };
@@ -74,7 +74,7 @@ struct FlatBufferBench : Bench {
 }  // namespace
 
 std::unique_ptr<Bench> NewFlatBuffersBench(int64_t initial_size,
-                                           Allocator *allocator) {
+                                           Allocator* allocator) {
   return std::unique_ptr<FlatBufferBench>(
       new FlatBufferBench(initial_size, allocator));
 }

benchmarks/cpp/flatbuffers/fb_bench.h

@@ -8,16 +8,16 @@
 #include "include/flatbuffers/flatbuffers.h"
 
 struct StaticAllocator : public flatbuffers::Allocator {
-  explicit StaticAllocator(uint8_t *buffer) : buffer_(buffer) {}
+  explicit StaticAllocator(uint8_t* buffer) : buffer_(buffer) {}
 
-  uint8_t *allocate(size_t) override { return buffer_; }
+  uint8_t* allocate(size_t) override { return buffer_; }
 
-  void deallocate(uint8_t *, size_t) override {}
+  void deallocate(uint8_t*, size_t) override {}
 
-  uint8_t *buffer_;
+  uint8_t* buffer_;
 };
 
 std::unique_ptr<Bench> NewFlatBuffersBench(
-    int64_t initial_size = 1024, flatbuffers::Allocator *allocator = nullptr);
+    int64_t initial_size = 1024, flatbuffers::Allocator* allocator = nullptr);
 
 #endif  // BENCHMARKS_CPP_FLATBUFFERS_FB_BENCH_H_

benchmarks/cpp/raw/raw_bench.cpp

@@ -45,8 +45,8 @@ struct FooBarContainer {
 };
 
 struct RawBench : Bench {
-  uint8_t *Encode(void *buf, int64_t &len) override {
+  uint8_t* Encode(void* buf, int64_t& len) override {
-    FooBarContainer *fbc = new (buf) FooBarContainer;
+    FooBarContainer* fbc = new (buf) FooBarContainer;
     strcpy(fbc->location, "http://google.com/flatbuffers/");  // Unsafe eek!
     fbc->location_len = (int)strlen(fbc->location);
     fbc->fruit = Bananas;
@@ -54,16 +54,16 @@ struct RawBench : Bench {
     for (int i = 0; i < kVectorLength; i++) {
       // We add + i to not make these identical copies for a more realistic
       // compression test.
-      auto &foobar = fbc->list[i];
+      auto& foobar = fbc->list[i];
       foobar.rating = 3.1415432432445543543 + i;
       foobar.postfix = '!' + i;
       strcpy(foobar.name, "Hello, World!");
       foobar.name_len = (int)strlen(foobar.name);
-      auto &bar = foobar.sibling;
+      auto& bar = foobar.sibling;
       bar.ratio = 3.14159f + i;
       bar.size = 10000 + i;
       bar.time = 123456 + i;
-      auto &foo = bar.parent;
+      auto& foo = bar.parent;
       foo.id = 0xABADCAFEABADCAFE + i;
       foo.count = 10000 + i;
       foo.length = 1000000 + i;
@@ -71,11 +71,11 @@ struct RawBench : Bench {
     }
 
     len = sizeof(FooBarContainer);
-    return reinterpret_cast<uint8_t *>(fbc);
+    return reinterpret_cast<uint8_t*>(fbc);
   };
 
-  int64_t Use(void *decoded) override {
+  int64_t Use(void* decoded) override {
-    auto foobarcontainer = reinterpret_cast<FooBarContainer *>(decoded);
+    auto foobarcontainer = reinterpret_cast<FooBarContainer*>(decoded);
     sum = 0;
     Add(foobarcontainer->initialized);
     Add(foobarcontainer->location_len);
@@ -89,7 +89,7 @@ struct RawBench : Bench {
       Add(static_cast<int64_t>(bar->ratio));
       Add(bar->size);
       Add(bar->time);
-      auto &foo = bar->parent;
+      auto& foo = bar->parent;
       Add(foo.count);
       Add(foo.id);
       Add(foo.length);
@@ -98,8 +98,8 @@ struct RawBench : Bench {
     return sum;
   }
 
-  void *Decode(void *buf, int64_t) override { return buf; }
+  void* Decode(void* buf, int64_t) override { return buf; }
-  void Dealloc(void *) override{};
+  void Dealloc(void*) override {};
 };
 
 }  // namespace

benchmarks/swift/Benchmarks/FlatbuffersBenchmarks/FlatbuffersBenchmarks.swift

@@ -15,8 +15,8 @@
  */
 
 import Benchmark
-import CoreFoundation
 import FlatBuffers
+import Foundation
 
 @usableFromInline
 struct AA: NativeStruct {
@@ -29,6 +29,15 @@ struct AA: NativeStruct {
 }
 
 let benchmarks = {
+  let oneGB: Int32 = 1_024_000_000
+  let data = {
+    var array = [8888.88, 8888.88]
+    var data = Data()
+    array.withUnsafeBytes { ptr in
+      data.append(contentsOf: ptr)
+    }
+    return data
+  }()
   let ints: [Int] = Array(repeating: 42, count: 100)
   let bytes: [UInt8] = Array(repeating: 42, count: 100)
   let str10 = (0...9).map { _ -> String in "x" }.joined()
@@ -73,12 +82,25 @@ let benchmarks = {
 
   Benchmark("Allocating 1GB", configuration: singleConfiguration) { benchmark in
     for _ in benchmark.scaledIterations {
-      blackHole(FlatBufferBuilder(initialSize: 1_024_000_000))
+      blackHole(FlatBufferBuilder(initialSize: oneGB))
+    }
+  }
+
+  Benchmark(
+    "Allocating ByteBuffer 1GB",
+    configuration: singleConfiguration)
+  { benchmark in
+    let memory = UnsafeMutableRawPointer.allocate(
+      byteCount: 1_024_000_000,
+      alignment: 1)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(ByteBuffer(assumingMemoryBound: memory, capacity: Int(oneGB)))
     }
   }
 
   Benchmark("Clearing 1GB", configuration: singleConfiguration) { benchmark in
-    var fb = FlatBufferBuilder(initialSize: 1_024_000_000)
+    var fb = FlatBufferBuilder(initialSize: oneGB)
     benchmark.startMeasurement()
     for _ in benchmark.scaledIterations {
       blackHole(fb.clear())
@@ -86,7 +108,7 @@ let benchmarks = {
   }
 
   Benchmark("Strings 10") { benchmark in
-    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
     benchmark.startMeasurement()
     for _ in benchmark.scaledIterations {
       blackHole(fb.create(string: str10))
@@ -94,7 +116,7 @@ let benchmarks = {
   }
 
   Benchmark("Strings 100") { benchmark in
-    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
     benchmark.startMeasurement()
     for _ in benchmark.scaledIterations {
       blackHole(fb.create(string: str100))
@@ -102,7 +124,7 @@ let benchmarks = {
   }
 
   Benchmark("Vector 1 Bytes") { benchmark in
-    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
     benchmark.startMeasurement()
     for _ in benchmark.scaledIterations {
       blackHole(fb.createVector(bytes: bytes))
@@ -110,7 +132,7 @@ let benchmarks = {
   }
 
   Benchmark("Vector 1 Ints") { benchmark in
-    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
     benchmark.startMeasurement()
     for _ in benchmark.scaledIterations {
       blackHole(fb.createVector(ints))
@@ -118,7 +140,7 @@ let benchmarks = {
   }
 
   Benchmark("Vector 100 Ints") { benchmark in
-    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
     benchmark.startMeasurement()
     for i in benchmark.scaledIterations {
       blackHole(fb.createVector(ints))
@@ -126,7 +148,7 @@ let benchmarks = {
   }
 
   Benchmark("Vector 100 Bytes") { benchmark in
-    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
     benchmark.startMeasurement()
     for i in benchmark.scaledIterations {
       blackHole(fb.createVector(bytes))
@@ -134,7 +156,7 @@ let benchmarks = {
   }
 
   Benchmark("Vector 100 ContiguousBytes") { benchmark in
-    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    var fb = FlatBufferBuilder(initialSize: 1 << 20)
     benchmark.startMeasurement()
     for i in benchmark.scaledIterations {
       blackHole(fb.createVector(bytes: bytes))
@@ -158,6 +180,26 @@ let benchmarks = {
     }
   }
 
+  Benchmark(
+    "FlatBufferBuilder Start table",
+    configuration: kiloConfiguration)
+  { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1024 * 1024 * 32)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let s = fb.startTable(with: 4)
+      blackHole(fb.endTable(at: s))
+    }
+  }
+
+  Benchmark("Struct") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1024 * 1024 * 32)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.create(struct: array.first!))
+    }
+  }
+
   Benchmark("Structs") { benchmark in
     let rawSize = ((16 * 5) * benchmark.scaledIterations.count) / 1024
     var fb = FlatBufferBuilder(initialSize: Int32(rawSize * 1600))
@@ -176,7 +218,7 @@ let benchmarks = {
     let start = fb.startTable(with: 1)
     fb.add(offset: vector, at: 4)
     let root = Offset(offset: fb.endTable(at: start))
-    fb.finish(offset: root)
+    blackHole(fb.finish(offset: root))
   }
 
   Benchmark("Vector of Offsets") { benchmark in
@@ -198,4 +240,11 @@ let benchmarks = {
       blackHole(fb.endTable(at: s))
     }
   }
+
+  Benchmark("Reading Doubles") { benchmark in
+    let byteBuffer = ByteBuffer(data: data)
+    for _ in benchmark.scaledIterations {
+      blackHole(byteBuffer.read(def: Double.self, position: 0))
+    }
+  }
 }

benchmarks/swift/Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.9
+// swift-tools-version:5.10
 /*
  * Copyright 2020 Google Inc. All rights reserved.
  *

benchmarks/swift/README.md

@@ -6,4 +6,4 @@ To open the benchmarks in xcode use:
 
 or running them directly within terminal using:
 
-`swift package benchmark`
+`swift package benchmark`

build_defs.bzl

@@ -187,6 +187,7 @@ def flatbuffer_cc_library(
         visibility = None,
         compatible_with = None,
         restricted_to = None,
+        filename_suffix = "_generated",
         target_compatible_with = None,
         srcs_filegroup_visibility = None,
         gen_reflections = False):
@@ -230,10 +231,13 @@ def flatbuffer_cc_library(
       Fileset([name]_reflection): (Optional) all generated reflection binaries.
       cc_library([name]): library with sources and flatbuffers deps.
     """
-    output_headers = [
+
-        (out_prefix + "%s_generated.h") % (s.replace(".fbs", "").split("/")[-1].split(":")[-1])
+    output_headers = []
-        for s in srcs
+    for s in srcs:
-    ]
+        base_name = s.split("/")[-1].split(":")[-1].replace(".fbs", "")
+        header = out_prefix + base_name + filename_suffix + ".h"
+        output_headers.append(header)
+
     if deps and includes:
         # There is no inherent reason we couldn't support both, but this discourages
         # use of includes without good reason.

conan/CMakeLists.txt

@@ -1,12 +0,0 @@
-cmake_minimum_required(VERSION 2.8)
-
-message(STATUS "Conan FlatBuffers Wrapper")
-
-include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
-conan_basic_setup()
-
-if (WIN32 AND MSVC_LIKE AND FLATBUFFERS_BUILD_SHAREDLIB)
-    set(CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS ON)
-endif(WIN32 AND MSVC_LIKE AND FLATBUFFERS_BUILD_SHAREDLIB)
-
-include(${CMAKE_SOURCE_DIR}/CMakeListsOriginal.txt)

conan/build.py

@@ -1,50 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-import os
-import re
-import subprocess
-from cpt.packager import ConanMultiPackager
-
-
-
-def get_branch():
-    try:
-        for line in subprocess.check_output("git branch", shell=True).decode().splitlines():
-            line = line.strip()
-            if line.startswith("*") and " (HEAD detached" not in line:
-                return line.replace("*", "", 1).strip()
-        return ""
-    except Exception:
-        pass
-    return ""
-
-
-def get_version():
-    version = get_branch()
-    match = re.search(r"v(\d+\.\d+\.\d+.*)", version)
-    if match:
-        return match.group(1)
-    return version
-
-
-def get_reference(username):
-    return "flatbuffers/{}@google/stable".format(get_version())
-
-
-if __name__ == "__main__":
-    login_username = os.getenv("CONAN_LOGIN_USERNAME", "aardappel")
-    username = os.getenv("CONAN_USERNAME", "google")
-    upload = os.getenv("CONAN_UPLOAD", "https://api.bintray.com/conan/aardappel/flatbuffers")
-    stable_branch_pattern = os.getenv("CONAN_STABLE_BRANCH_PATTERN", r"v\d+\.\d+\.\d+.*")
-    test_folder = os.getenv("CPT_TEST_FOLDER", os.path.join("conan", "test_package"))
-    upload_only_when_stable = os.getenv("CONAN_UPLOAD_ONLY_WHEN_STABLE", True)
-
-    builder = ConanMultiPackager(reference=get_reference(username),
-                                 username=username,
-                                 login_username=login_username,
-                                 upload=upload,
-                                 stable_branch_pattern=stable_branch_pattern,
-                                 upload_only_when_stable=upload_only_when_stable,
-                                 test_folder=test_folder)
-    builder.add_common_builds(pure_c=False)
-    builder.run()

conan/test_package/CMakeLists.txt

@@ -1,9 +0,0 @@
-project(test_package CXX)
-cmake_minimum_required(VERSION 2.8.11)
-
-include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
-conan_basic_setup()
-
-add_executable(${PROJECT_NAME} test_package.cpp)
-target_link_libraries(${PROJECT_NAME} ${CONAN_LIBS})
-set_property(TARGET ${PROJECT_NAME} PROPERTY CXX_STANDARD 11)

conan/test_package/conanfile.py

@@ -1,21 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-from conans import ConanFile, CMake
-import os
-
-
-class TestPackageConan(ConanFile):
-    settings = "os", "compiler", "build_type", "arch"
-    generators = "cmake"
-
-    def build(self):
-        cmake = CMake(self)
-        cmake.configure()
-        cmake.build()
-
-    def test(self):
-        bin_path = os.path.join("bin", "test_package")
-        self.run(bin_path, run_environment=True)
-        self.run("flatc --version", run_environment=True)
-        self.run("flathash fnv1_16 conan", run_environment=True)

conanfile.py

@@ -1,75 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-
-"""Conan recipe package for Google FlatBuffers
-"""
-import os
-import shutil
-from conans import ConanFile, CMake, tools
-
-
-class FlatbuffersConan(ConanFile):
-    name = "flatbuffers"
-    license = "Apache-2.0"
-    url = "https://github.com/google/flatbuffers"
-    homepage = "http://google.github.io/flatbuffers/"
-    author = "Wouter van Oortmerssen"
-    topics = ("conan", "flatbuffers", "serialization", "rpc", "json-parser")
-    description = "Memory Efficient Serialization Library"
-    settings = "os", "compiler", "build_type", "arch"
-    options = {"shared": [True, False], "fPIC": [True, False]}
-    default_options = {"shared": False, "fPIC": True}
-    generators = "cmake"
-    exports = "LICENSE"
-    exports_sources = ["CMake/*", "include/*", "src/*", "grpc/*", "CMakeLists.txt", "conan/CMakeLists.txt"]
-
-    def source(self):
-        """Wrap the original CMake file to call conan_basic_setup
-        """
-        shutil.move("CMakeLists.txt", "CMakeListsOriginal.txt")
-        shutil.move(os.path.join("conan", "CMakeLists.txt"), "CMakeLists.txt")
-
-    def config_options(self):
-        """Remove fPIC option on Windows platform
-        """
-        if self.settings.os == "Windows":
-            self.options.remove("fPIC")
-
-    def configure_cmake(self):
-        """Create CMake instance and execute configure step
-        """
-        cmake = CMake(self)
-        cmake.definitions["FLATBUFFERS_BUILD_TESTS"] = False
-        cmake.definitions["FLATBUFFERS_BUILD_SHAREDLIB"] = self.options.shared
-        cmake.definitions["FLATBUFFERS_BUILD_FLATLIB"] = not self.options.shared
-        cmake.configure()
-        return cmake
-
-    def build(self):
-        """Configure, build and install FlatBuffers using CMake.
-        """
-        cmake = self.configure_cmake()
-        cmake.build()
-
-    def package(self):
-        """Copy Flatbuffers' artifacts to package folder
-        """
-        cmake = self.configure_cmake()
-        cmake.install()
-        self.copy(pattern="LICENSE", dst="licenses")
-        self.copy(pattern="FindFlatBuffers.cmake", dst=os.path.join("lib", "cmake", "flatbuffers"), src="CMake")
-        self.copy(pattern="flathash*", dst="bin", src="bin")
-        self.copy(pattern="flatc*", dst="bin", src="bin")
-        if self.settings.os == "Windows" and self.options.shared:
-            if self.settings.compiler == "Visual Studio":
-                shutil.move(os.path.join(self.package_folder, "lib", "%s.dll" % self.name),
-                            os.path.join(self.package_folder, "bin", "%s.dll" % self.name))
-            elif self.settings.compiler == "gcc":
-                shutil.move(os.path.join(self.package_folder, "lib", "lib%s.dll" % self.name),
-                            os.path.join(self.package_folder, "bin", "lib%s.dll" % self.name))
-
-    def package_info(self):
-        """Collect built libraries names and solve flatc path.
-        """
-        self.cpp_info.libs = tools.collect_libs(self)
-        self.user_info.flatc = os.path.join(self.package_folder, "bin", "flatc")

dart/CHANGELOG.md

@@ -1,5 +1,11 @@
 # Changelog
 
+## 25.9.23
+
+- use enhanced enums (#8313)
+- fix incorrect write in Float64 write method (#8290)
+- code format improvements (#8707)
+
 ## 23.5.26
 
 - omit type annotationes for local variables (#7067, #7069, #7070)

dart/example/example.dart

@@ -15,6 +15,7 @@
  */
 
 import 'package:flat_buffers/flat_buffers.dart' as fb;
+
 import './monster_my_game.sample_generated.dart' as my_game;
 
 // Example how to use FlatBuffers to create and read binary buffers.
@@ -78,7 +79,8 @@ void builderTest() {
   builder.finish(monsteroff);
   if (verify(builder.buffer)) {
     print(
-        "The FlatBuffer was successfully created with a builder and verified!");
+      "The FlatBuffer was successfully created with a builder and verified!",
+    );
   }
 }
 
@@ -94,7 +96,10 @@ void objectBuilderTest() {
     name: 'Orc',
     inventory: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
     color: my_game.Color.Red,
-    weapons: [my_game.WeaponObjectBuilder(name: 'Sword', damage: 3), axe],
+    weapons: [
+      my_game.WeaponObjectBuilder(name: 'Sword', damage: 3),
+      axe,
+    ],
     equippedType: my_game.EquipmentTypeId.Weapon,
     equipped: axe,
   );
@@ -108,7 +113,8 @@ void objectBuilderTest() {
   // Instead, we're going to access it right away (as if we just received it).
   if (verify(buffer)) {
     print(
-        "The FlatBuffer was successfully created with an object builder and verified!");
+      "The FlatBuffer was successfully created with an object builder and verified!",
+    );
   }
 }
 

dart/example/monster_my_game.sample_generated.dart

@@ -4,8 +4,8 @@
 library my_game.sample;
 
 import 'dart:typed_data' show Uint8List;
-import 'package:flat_buffers/flat_buffers.dart' as fb;
 
+import 'package:flat_buffers/flat_buffers.dart' as fb;
 
 class Color {
   final int value;
@@ -19,7 +19,7 @@ class Color {
     return result;
   }
 
-  static Color? _createOrNull(int? value) => 
+  static Color? _createOrNull(int? value) =>
       value == null ? null : Color.fromValue(value);
 
   static const int minValue = 0;
@@ -29,10 +29,7 @@ class Color {
   static const Color Red = Color._(0);
   static const Color Green = Color._(1);
   static const Color Blue = Color._(2);
-  static const Map<int, Color> values = {
+  static const Map<int, Color> values = {0: Red, 1: Green, 2: Blue};
-    0: Red,
-    1: Green,
-    2: Blue};
 
   static const fb.Reader<Color> reader = _ColorReader();
 
@@ -60,12 +57,14 @@ class EquipmentTypeId {
   factory EquipmentTypeId.fromValue(int value) {
     final result = values[value];
     if (result == null) {
-      throw StateError('Invalid value $value for bit flag enum EquipmentTypeId');
+      throw StateError(
+        'Invalid value $value for bit flag enum EquipmentTypeId',
+      );
     }
     return result;
   }
 
-  static EquipmentTypeId? _createOrNull(int? value) => 
+  static EquipmentTypeId? _createOrNull(int? value) =>
       value == null ? null : EquipmentTypeId.fromValue(value);
 
   static const int minValue = 0;
@@ -74,9 +73,7 @@ class EquipmentTypeId {
 
   static const EquipmentTypeId NONE = EquipmentTypeId._(0);
   static const EquipmentTypeId Weapon = EquipmentTypeId._(1);
-  static const Map<int, EquipmentTypeId> values = {
+  static const Map<int, EquipmentTypeId> values = {0: NONE, 1: Weapon};
-    0: NONE,
-    1: Weapon};
 
   static const fb.Reader<EquipmentTypeId> reader = _EquipmentTypeIdReader();
 
@@ -122,8 +119,7 @@ class _Vec3Reader extends fb.StructReader<Vec3> {
   int get size => 12;
 
   @override
-  Vec3 createObject(fb.BufferContext bc, int offset) => 
+  Vec3 createObject(fb.BufferContext bc, int offset) => Vec3._(bc, offset);
-    Vec3._(bc, offset);
 }
 
 class Vec3Builder {
@@ -137,7 +133,6 @@ class Vec3Builder {
     fbBuilder.putFloat32(x);
     return fbBuilder.offset;
   }
-
 }
 
 class Vec3ObjectBuilder extends fb.ObjectBuilder {
@@ -145,14 +140,10 @@ class Vec3ObjectBuilder extends fb.ObjectBuilder {
   final double _y;
   final double _z;
 
-  Vec3ObjectBuilder({
+  Vec3ObjectBuilder({required double x, required double y, required double z})
-    required double x,
+    : _x = x,
-    required double y,
+      _y = y,
-    required double z,
+      _z = z;
-  })
-      : _x = x,
-        _y = y,
-        _z = z;
 
   /// Finish building, and store into the [fbBuilder].
   @override
@@ -171,6 +162,7 @@ class Vec3ObjectBuilder extends fb.ObjectBuilder {
     return fbBuilder.buffer;
   }
 }
+
 class Monster {
   Monster._(this._bc, this._bcOffset);
   factory Monster(List<int> bytes) {
@@ -186,18 +178,30 @@ class Monster {
   Vec3? get pos => Vec3.reader.vTableGetNullable(_bc, _bcOffset, 4);
   int get mana => const fb.Int16Reader().vTableGet(_bc, _bcOffset, 6, 150);
   int get hp => const fb.Int16Reader().vTableGet(_bc, _bcOffset, 8, 100);
-  String? get name => const fb.StringReader().vTableGetNullable(_bc, _bcOffset, 10);
+  String? get name =>
-  List<int>? get inventory => const fb.Uint8ListReader().vTableGetNullable(_bc, _bcOffset, 14);
+      const fb.StringReader().vTableGetNullable(_bc, _bcOffset, 10);
-  Color get color => Color.fromValue(const fb.Int8Reader().vTableGet(_bc, _bcOffset, 16, 2));
+  List<int>? get inventory =>
-  List<Weapon>? get weapons => const fb.ListReader<Weapon>(Weapon.reader).vTableGetNullable(_bc, _bcOffset, 18);
+      const fb.Uint8ListReader().vTableGetNullable(_bc, _bcOffset, 14);
-  EquipmentTypeId? get equippedType => EquipmentTypeId._createOrNull(const fb.Uint8Reader().vTableGetNullable(_bc, _bcOffset, 20));
+  Color get color =>
+      Color.fromValue(const fb.Int8Reader().vTableGet(_bc, _bcOffset, 16, 2));
+  List<Weapon>? get weapons => const fb.ListReader<Weapon>(
+    Weapon.reader,
+  ).vTableGetNullable(_bc, _bcOffset, 18);
+  EquipmentTypeId? get equippedType => EquipmentTypeId._createOrNull(
+    const fb.Uint8Reader().vTableGetNullable(_bc, _bcOffset, 20),
+  );
   dynamic get equipped {
     switch (equippedType?.value) {
-      case 1: return Weapon.reader.vTableGetNullable(_bc, _bcOffset, 22);
+      case 1:
-      default: return null;
+        return Weapon.reader.vTableGetNullable(_bc, _bcOffset, 22);
+      default:
+        return null;
     }
   }
-  List<Vec3>? get path => const fb.ListReader<Vec3>(Vec3.reader).vTableGetNullable(_bc, _bcOffset, 24);
+
+  List<Vec3>? get path => const fb.ListReader<Vec3>(
+    Vec3.reader,
+  ).vTableGetNullable(_bc, _bcOffset, 24);
 
   @override
   String toString() {
@@ -209,8 +213,8 @@ class _MonsterReader extends fb.TableReader<Monster> {
   const _MonsterReader();
 
   @override
-  Monster createObject(fb.BufferContext bc, int offset) => 
+  Monster createObject(fb.BufferContext bc, int offset) =>
-    Monster._(bc, offset);
+      Monster._(bc, offset);
 }
 
 class MonsterBuilder {
@@ -226,38 +230,47 @@ class MonsterBuilder {
     fbBuilder.addStruct(0, offset);
     return fbBuilder.offset;
   }
+
   int addMana(int? mana) {
     fbBuilder.addInt16(1, mana);
     return fbBuilder.offset;
   }
+
   int addHp(int? hp) {
     fbBuilder.addInt16(2, hp);
     return fbBuilder.offset;
   }
+
   int addNameOffset(int? offset) {
     fbBuilder.addOffset(3, offset);
     return fbBuilder.offset;
   }
+
   int addInventoryOffset(int? offset) {
     fbBuilder.addOffset(5, offset);
     return fbBuilder.offset;
   }
+
   int addColor(Color? color) {
     fbBuilder.addInt8(6, color?.value);
     return fbBuilder.offset;
   }
+
   int addWeaponsOffset(int? offset) {
     fbBuilder.addOffset(7, offset);
     return fbBuilder.offset;
   }
+
   int addEquippedType(EquipmentTypeId? equippedType) {
     fbBuilder.addUint8(8, equippedType?.value);
     return fbBuilder.offset;
   }
+
   int addEquippedOffset(int? offset) {
     fbBuilder.addOffset(9, offset);
     return fbBuilder.offset;
   }
+
   int addPathOffset(int? offset) {
     fbBuilder.addOffset(10, offset);
     return fbBuilder.offset;
@@ -291,29 +304,34 @@ class MonsterObjectBuilder extends fb.ObjectBuilder {
     EquipmentTypeId? equippedType,
     dynamic equipped,
     List<Vec3ObjectBuilder>? path,
-  })
+  }) : _pos = pos,
-      : _pos = pos,
+       _mana = mana,
-        _mana = mana,
+       _hp = hp,
-        _hp = hp,
+       _name = name,
-        _name = name,
+       _inventory = inventory,
-        _inventory = inventory,
+       _color = color,
-        _color = color,
+       _weapons = weapons,
-        _weapons = weapons,
+       _equippedType = equippedType,
-        _equippedType = equippedType,
+       _equipped = equipped,
-        _equipped = equipped,
+       _path = path;
-        _path = path;
 
   /// Finish building, and store into the [fbBuilder].
   @override
   int finish(fb.Builder fbBuilder) {
-    final int? nameOffset = _name == null ? null
+    final int? nameOffset = _name == null
+        ? null
         : fbBuilder.writeString(_name!);
-    final int? inventoryOffset = _inventory == null ? null
+    final int? inventoryOffset = _inventory == null
+        ? null
         : fbBuilder.writeListUint8(_inventory!);
-    final int? weaponsOffset = _weapons == null ? null
+    final int? weaponsOffset = _weapons == null
-        : fbBuilder.writeList(_weapons!.map((b) => b.getOrCreateOffset(fbBuilder)).toList());
+        ? null
+        : fbBuilder.writeList(
+            _weapons!.map((b) => b.getOrCreateOffset(fbBuilder)).toList(),
+          );
     final int? equippedOffset = _equipped?.getOrCreateOffset(fbBuilder);
-    final int? pathOffset = _path == null ? null
+    final int? pathOffset = _path == null
+        ? null
         : fbBuilder.writeListOfStructs(_path!);
     fbBuilder.startTable(10);
     if (_pos != null) {
@@ -339,6 +357,7 @@ class MonsterObjectBuilder extends fb.ObjectBuilder {
     return fbBuilder.buffer;
   }
 }
+
 class Weapon {
   Weapon._(this._bc, this._bcOffset);
   factory Weapon(List<int> bytes) {
@@ -351,7 +370,8 @@ class Weapon {
   final fb.BufferContext _bc;
   final int _bcOffset;
 
-  String? get name => const fb.StringReader().vTableGetNullable(_bc, _bcOffset, 4);
+  String? get name =>
+      const fb.StringReader().vTableGetNullable(_bc, _bcOffset, 4);
   int get damage => const fb.Int16Reader().vTableGet(_bc, _bcOffset, 6, 0);
 
   @override
@@ -364,8 +384,7 @@ class _WeaponReader extends fb.TableReader<Weapon> {
   const _WeaponReader();
 
   @override
-  Weapon createObject(fb.BufferContext bc, int offset) => 
+  Weapon createObject(fb.BufferContext bc, int offset) => Weapon._(bc, offset);
-    Weapon._(bc, offset);
 }
 
 class WeaponBuilder {
@@ -381,6 +400,7 @@ class WeaponBuilder {
     fbBuilder.addOffset(0, offset);
     return fbBuilder.offset;
   }
+
   int addDamage(int? damage) {
     fbBuilder.addInt16(1, damage);
     return fbBuilder.offset;
@@ -395,17 +415,15 @@ class WeaponObjectBuilder extends fb.ObjectBuilder {
   final String? _name;
   final int? _damage;
 
-  WeaponObjectBuilder({
+  WeaponObjectBuilder({String? name, int? damage})
-    String? name,
+    : _name = name,
-    int? damage,
+      _damage = damage;
-  })
-      : _name = name,
-        _damage = damage;
 
   /// Finish building, and store into the [fbBuilder].
   @override
   int finish(fb.Builder fbBuilder) {
-    final int? nameOffset = _name == null ? null
+    final int? nameOffset = _name == null
+        ? null
         : fbBuilder.writeString(_name!);
     fbBuilder.startTable(2);
     fbBuilder.addOffset(0, nameOffset);

dart/lib/flat_buffers.dart

@@ -27,10 +27,11 @@ class BufferContext {
   ByteData get buffer => _buffer;
 
   /// Create from a FlatBuffer represented by a list of bytes (uint8).
-  factory BufferContext.fromBytes(List<int> byteList) =>
+  factory BufferContext.fromBytes(List<int> byteList) => BufferContext(
-      BufferContext(byteList is Uint8List
+    byteList is Uint8List
-          ? byteList.buffer.asByteData(byteList.offsetInBytes)
+        ? byteList.buffer.asByteData(byteList.offsetInBytes)
-          : ByteData.view(Uint8List.fromList(byteList).buffer));
+        : ByteData.view(Uint8List.fromList(byteList).buffer),
+  );
 
   /// Create from a FlatBuffer represented by ByteData.
   BufferContext(this._buffer);
@@ -149,9 +150,9 @@ class Builder {
     bool internStrings = false,
     Allocator allocator = const DefaultAllocator(),
     this.deduplicateTables = true,
-  })  : _allocator = allocator,
+  }) : _allocator = allocator,
-        _buf = allocator.allocate(initialSize),
+       _buf = allocator.allocate(initialSize),
-        _vTables = deduplicateTables ? [] : const [] {
+       _vTables = deduplicateTables ? [] : const [] {
     if (internStrings) {
       _strings = <String, int>{};
     }
@@ -350,8 +351,10 @@ class Builder {
   Uint8List get buffer {
     assert(_finished);
     final finishedSize = size();
-    return _buf.buffer
+    return _buf.buffer.asUint8List(
-        .asUint8List(_buf.lengthInBytes - finishedSize, finishedSize);
+      _buf.lengthInBytes - finishedSize,
+      finishedSize,
+    );
   }
 
   /// Finish off the creation of the buffer.  The given [offset] is used as the
@@ -368,14 +371,18 @@ class Builder {
     if (fileIdentifier != null) {
       for (var i = 0; i < 4; i++) {
         _setUint8AtTail(
-            finishedSize - _sizeofUint32 - i, fileIdentifier.codeUnitAt(i));
+          finishedSize - _sizeofUint32 - i,
+          fileIdentifier.codeUnitAt(i),
+        );
       }
     }
 
     // zero out the added padding
-    for (var i = sizeBeforePadding + 1;
+    for (
-        i <= finishedSize - requiredBytes;
+      var i = sizeBeforePadding + 1;
-        i++) {
+      i <= finishedSize - requiredBytes;
+      i++
+    ) {
       _setUint8AtTail(i, 0);
     }
     _finished = true;
@@ -687,8 +694,10 @@ class Builder {
   int writeString(String value, {bool asciiOptimization = false}) {
     assert(!_inVTable);
     if (_strings != null) {
-      return _strings!
+      return _strings!.putIfAbsent(
-          .putIfAbsent(value, () => _writeString(value, asciiOptimization));
+        value,
+        () => _writeString(value, asciiOptimization),
+      );
     } else {
       return _writeString(value, asciiOptimization);
     }
@@ -1005,8 +1014,11 @@ class ListReader<E> extends Reader<List<E>> {
         : List<E>.generate(
             bc.buffer.getUint32(listOffset, Endian.little),
             (int index) => _elementReader.read(
-                bc, listOffset + size + _elementReader.size * index),
+              bc,
-            growable: true);
+              listOffset + size + _elementReader.size * index,
+            ),
+            growable: true,
+          );
   }
 }
 
@@ -1284,7 +1296,7 @@ class _FbGenericList<E> extends _FbList<E> {
   List<E?>? _items;
 
   _FbGenericList(this.elementReader, BufferContext bp, int offset)
-      : super(bp, offset);
+    : super(bp, offset);
 
   @override
   @pragma('vm:prefer-inline')
@@ -1454,7 +1466,11 @@ abstract class Allocator {
   /// Params [inUseBack] and [inUseFront] indicate how much of [oldData] is
   /// actually in use at each end, and needs to be copied.
   ByteData resize(
-      ByteData oldData, int newSize, int inUseBack, int inUseFront) {
+    ByteData oldData,
+    int newSize,
+    int inUseBack,
+    int inUseFront,
+  ) {
     final newData = allocate(newSize);
     _copyDownward(oldData, newData, inUseBack, inUseFront);
     deallocate(oldData);
@@ -1465,17 +1481,25 @@ abstract class Allocator {
   /// memory of size [inUseFront] and [inUseBack] will be copied from the front
   /// and back of the old memory allocation.
   void _copyDownward(
-      ByteData oldData, ByteData newData, int inUseBack, int inUseFront) {
+    ByteData oldData,
+    ByteData newData,
+    int inUseBack,
+    int inUseFront,
+  ) {
     if (inUseBack != 0) {
       newData.buffer.asUint8List().setAll(
-          newData.lengthInBytes - inUseBack,
+        newData.lengthInBytes - inUseBack,
-          oldData.buffer.asUint8List().getRange(
+        oldData.buffer.asUint8List().getRange(
-              oldData.lengthInBytes - inUseBack, oldData.lengthInBytes));
+          oldData.lengthInBytes - inUseBack,
+          oldData.lengthInBytes,
+        ),
+      );
     }
     if (inUseFront != 0) {
-      newData.buffer
+      newData.buffer.asUint8List().setAll(
-          .asUint8List()
+        0,
-          .setAll(0, oldData.buffer.asUint8List().getRange(0, inUseFront));
+        oldData.buffer.asUint8List().getRange(0, inUseFront),
+      );
     }
   }
 }

dart/lib/src/builder.dart

@@ -5,7 +5,7 @@ import 'types.dart';
 
 /// The main builder class for creation of a FlexBuffer.
 class Builder {
-  final ByteData _buffer;
+  ByteData _buffer;
   List<_StackValue> _stack = [];
   List<_StackPointer> _stackPointers = [];
   int _offset = 0;
@@ -107,8 +107,11 @@ class Builder {
     final newOffset = _newOffset(length + 1);
     _pushBuffer(utf8String);
     _offset = newOffset;
-    final stackValue =
+    final stackValue = _StackValue.withOffset(
-        _StackValue.withOffset(stringOffset, ValueType.String, bitWidth);
+      stringOffset,
+      ValueType.String,
+      bitWidth,
+    );
     _stack.add(stackValue);
     _stringCache[value] = stackValue;
   }
@@ -128,8 +131,11 @@ class Builder {
     final newOffset = _newOffset(length + 1);
     _pushBuffer(utf8String);
     _offset = newOffset;
-    final stackValue =
+    final stackValue = _StackValue.withOffset(
-        _StackValue.withOffset(keyOffset, ValueType.Key, BitWidth.width8);
+      keyOffset,
+      ValueType.Key,
+      BitWidth.width8,
+    );
     _stack.add(stackValue);
     _keyCache[value] = stackValue;
   }
@@ -147,8 +153,11 @@ class Builder {
     final newOffset = _newOffset(length);
     _pushBuffer(value.asUint8List());
     _offset = newOffset;
-    final stackValue =
+    final stackValue = _StackValue.withOffset(
-        _StackValue.withOffset(blobOffset, ValueType.Blob, bitWidth);
+      blobOffset,
+      ValueType.Blob,
+      bitWidth,
+    );
     _stack.add(stackValue);
   }
 
@@ -170,7 +179,10 @@ class Builder {
     final valueOffset = _offset;
     _pushBuffer(stackValue.asU8List(stackValue.width));
     final stackOffset = _StackValue.withOffset(
-        valueOffset, ValueType.IndirectInt, stackValue.width);
+      valueOffset,
+      ValueType.IndirectInt,
+      stackValue.width,
+    );
     _stack.add(stackOffset);
     _offset = newOffset;
     if (cache) {
@@ -195,7 +207,10 @@ class Builder {
     final valueOffset = _offset;
     _pushBuffer(stackValue.asU8List(stackValue.width));
     final stackOffset = _StackValue.withOffset(
-        valueOffset, ValueType.IndirectFloat, stackValue.width);
+      valueOffset,
+      ValueType.IndirectFloat,
+      stackValue.width,
+    );
     _stack.add(stackOffset);
     _offset = newOffset;
     if (cache) {
@@ -252,9 +267,10 @@ class Builder {
     tmp._offset = _offset;
     tmp._stack = List.from(_stack);
     tmp._stackPointers = List.from(_stackPointers);
-    tmp._buffer.buffer
+    tmp._buffer.buffer.asUint8List().setAll(
-        .asUint8List()
+      0,
-        .setAll(0, _buffer.buffer.asUint8List(0, _offset));
+      _buffer.buffer.asUint8List(0, _offset),
+    );
     for (var i = 0; i < tmp._stackPointers.length; i++) {
       tmp.end();
     }
@@ -271,7 +287,8 @@ class Builder {
     if (_stackPointers.isNotEmpty && _stackPointers.last.isVector == false) {
       if (_stack.last.type != ValueType.Key) {
         throw StateError(
-            'Adding value to a map before adding a key is prohibited');
+          'Adding value to a map before adding a key is prohibited',
+        );
       }
     }
   }
@@ -288,7 +305,8 @@ class Builder {
   void _finish() {
     if (_stack.length != 1) {
       throw StateError(
-          'Stack has to be exactly 1, but is ${_stack.length}. You have to end all started vectors and maps, before calling [finish]');
+        'Stack has to be exactly 1, but is ${_stack.length}. You have to end all started vectors and maps, before calling [finish]',
+      );
     }
     final value = _stack[0];
     final byteWidth = _align(value.elementWidth(_offset, 0));
@@ -298,8 +316,12 @@ class Builder {
     _finished = true;
   }
 
-  _StackValue _createVector(int start, int vecLength, int step,
+  _StackValue _createVector(
-      [_StackValue? keys]) {
+    int start,
+    int vecLength,
+    int step, [
+    _StackValue? keys,
+  ]) {
     var bitWidth = BitWidthUtil.uwidth(vecLength);
     var prefixElements = 1;
     if (keys != null) {
@@ -326,7 +348,8 @@ class Builder {
       }
     }
     final byteWidth = _align(bitWidth);
-    final fix = typed & ValueTypeUtils.isNumber(vectorType) &&
+    final fix =
+        typed & ValueTypeUtils.isNumber(vectorType) &&
         vecLength >= 2 &&
         vecLength <= 4;
     if (keys != null) {
@@ -349,8 +372,10 @@ class Builder {
       return _StackValue.withOffset(vecOffset, ValueType.Map, bitWidth);
     }
     if (typed) {
-      final vType =
+      final vType = ValueTypeUtils.toTypedVector(
-          ValueTypeUtils.toTypedVector(vectorType, fix ? vecLength : 0);
+        vectorType,
+        fix ? vecLength : 0,
+      );
       return _StackValue.withOffset(vecOffset, vType, bitWidth);
     }
     return _StackValue.withOffset(vecOffset, ValueType.Vector, bitWidth);
@@ -366,7 +391,8 @@ class Builder {
   void _sortKeysAndEndMap(_StackPointer pointer) {
     if (((_stack.length - pointer.stackPosition) & 1) == 1) {
       throw StateError(
-          'The stack needs to hold key value pairs (even number of elements). Check if you combined [addKey] with add... method calls properly.');
+        'The stack needs to hold key value pairs (even number of elements). Check if you combined [addKey] with add... method calls properly.',
+      );
     }
 
     var sorted = true;
@@ -412,8 +438,12 @@ class Builder {
       keysStackValue = _createVector(pointer.stackPosition, vecLength, 2);
       _keyVectorCache[keysHash] = keysStackValue;
     }
-    final vec =
+    final vec = _createVector(
-        _createVector(pointer.stackPosition + 1, vecLength, 2, keysStackValue);
+      pointer.stackPosition + 1,
+      vecLength,
+      2,
+      keysStackValue,
+    );
     _stack.removeRange(pointer.stackPosition, _stack.length);
     _stack.add(vec);
   }
@@ -421,7 +451,8 @@ class Builder {
   bool _shouldFlip(_StackValue v1, _StackValue v2) {
     if (v1.type != ValueType.Key || v2.type != ValueType.Key) {
       throw StateError(
-          'Stack values are not keys $v1 | $v2. Check if you combined [addKey] with add... method calls properly.');
+        'Stack values are not keys $v1 | $v2. Check if you combined [addKey] with add... method calls properly.',
+      );
     }
 
     late int c1, c2;
@@ -450,7 +481,8 @@ class Builder {
         _writeUInt(relativeOffset, byteWidth);
       } else {
         throw StateError(
-            'Unexpected size $byteWidth. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new');
+          'Unexpected size $byteWidth. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new',
+        );
       }
     } else {
       _pushBuffer(value.asU8List(BitWidthUtil.fromByteWidth(byteWidth)));
@@ -474,6 +506,7 @@ class Builder {
     if (prevSize < size) {
       final newBuf = ByteData(size);
       newBuf.buffer.asUint8List().setAll(0, _buffer.buffer.asUint8List());
+      _buffer = newBuf;
     }
     return newOffset;
   }
@@ -523,29 +556,27 @@ class _StackValue {
   final ValueType _type;
   final BitWidth _width;
 
-  _StackValue.withNull()
+  _StackValue.withNull() : _type = ValueType.Null, _width = BitWidth.width8;
-      : _type = ValueType.Null,
-        _width = BitWidth.width8;
 
   _StackValue.withInt(int value)
-      : _type = ValueType.Int,
+    : _type = ValueType.Int,
-        _width = BitWidthUtil.width(value),
+      _width = BitWidthUtil.width(value),
-        _value = value;
+      _value = value;
 
   _StackValue.withBool(bool value)
-      : _type = ValueType.Bool,
+    : _type = ValueType.Bool,
-        _width = BitWidth.width8,
+      _width = BitWidth.width8,
-        _value = value;
+      _value = value;
 
   _StackValue.withDouble(double value)
-      : _type = ValueType.Float,
+    : _type = ValueType.Float,
-        _width = BitWidthUtil.width(value),
+      _width = BitWidthUtil.width(value),
-        _value = value;
+      _value = value;
 
   _StackValue.withOffset(int value, ValueType type, BitWidth width)
-      : _offset = value,
+    : _offset = value,
-        _type = type,
+      _type = type,
-        _width = width;
+      _width = width;
 
   BitWidth storedWidth({BitWidth width = BitWidth.width8}) {
     return ValueTypeUtils.isInline(_type)
@@ -562,16 +593,16 @@ class _StackValue {
     final offset = _offset!;
     for (var i = 0; i < 4; i++) {
       final width = 1 << i;
-      final bitWidth = BitWidthUtil.uwidth(size +
+      final bitWidth = BitWidthUtil.uwidth(
-          BitWidthUtil.paddingSize(size, width) +
+        size + BitWidthUtil.paddingSize(size, width) + index * width - offset,
-          index * width -
+      );
-          offset);
       if (1 << bitWidth.index == width) {
         return bitWidth;
       }
     }
     throw StateError(
-        'Element is of unknown. Size: $size at index: $index. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new');
+      'Element is of unknown. Size: $size at index: $index. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new',
+    );
   }
 
   List<int> asU8List(BitWidth width) {
@@ -619,7 +650,8 @@ class _StackValue {
     }
 
     throw StateError(
-        'Unexpected type: $_type. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new');
+      'Unexpected type: $_type. This might be a bug. Please create an issue https://github.com/google/flatbuffers/issues/new',
+    );
   }
 
   ValueType get type {

dart/lib/src/reference.dart

@@ -1,6 +1,7 @@
 import 'dart:collection';
 import 'dart:convert';
 import 'dart:typed_data';
+
 import 'types.dart';
 
 /// Main class to read a value out of a FlexBuffer.
@@ -16,10 +17,15 @@ class Reference {
   int? _length;
 
   Reference._(
-      this._buffer, this._offset, this._parentWidth, int packedType, this._path,
+    this._buffer,
-      [int? byteWidth, ValueType? valueType])
+    this._offset,
-      : _byteWidth = byteWidth ?? 1 << (packedType & 3),
+    this._parentWidth,
-        _valueType = valueType ?? ValueTypeUtils.fromInt(packedType >> 2);
+    int packedType,
+    this._path, [
+    int? byteWidth,
+    ValueType? valueType,
+  ]) : _byteWidth = byteWidth ?? 1 << (packedType & 3),
+       _valueType = valueType ?? ValueTypeUtils.fromInt(packedType >> 2);
 
   /// Use this method to access the root value of a FlexBuffer.
   static Reference fromBuffer(ByteBuffer buffer) {
@@ -31,8 +37,13 @@ class Reference {
     final byteWidth = byteData.getUint8(len - 1);
     final packedType = byteData.getUint8(len - 2);
     final offset = len - byteWidth - 2;
-    return Reference._(ByteData.view(buffer), offset,
+    return Reference._(
-        BitWidthUtil.fromByteWidth(byteWidth), packedType, "/");
+      ByteData.view(buffer),
+      offset,
+      BitWidthUtil.fromByteWidth(byteWidth),
+      packedType,
+      "/",
+    );
   }
 
   /// Returns true if the underlying value is null.
@@ -138,7 +149,8 @@ class Reference {
       final index = key;
       if (index >= length || index < 0) {
         throw ArgumentError(
-            'Key: [$key] is not applicable on: $_path of: $_valueType length: $length');
+          'Key: [$key] is not applicable on: $_path of: $_valueType length: $length',
+        );
       }
       final elementOffset = _indirect + index * _byteWidth;
       int packedType = 0;
@@ -154,13 +166,14 @@ class Reference {
         packedType = _buffer.getUint8(_indirect + length * _byteWidth + index);
       }
       return Reference._(
-          _buffer,
+        _buffer,
-          elementOffset,
+        elementOffset,
-          BitWidthUtil.fromByteWidth(_byteWidth),
+        BitWidthUtil.fromByteWidth(_byteWidth),
-          packedType,
+        packedType,
-          "$_path[$index]",
+        "$_path[$index]",
-          byteWidth,
+        byteWidth,
-          valueType);
+        valueType,
+      );
     }
     if (key is String && _valueType == ValueType.Map) {
       final index = _keyIndex(key);
@@ -169,7 +182,8 @@ class Reference {
       }
     }
     throw ArgumentError(
-        'Key: [$key] is not applicable on: $_path of: $_valueType');
+      'Key: [$key] is not applicable on: $_path of: $_valueType',
+    );
   }
 
   /// Get an iterable if the underlying flexBuffer value is a vector.
@@ -213,18 +227,24 @@ class Reference {
           ValueTypeUtils.isAVector(_valueType) ||
           _valueType == ValueType.Map) {
         _length = _readUInt(
-            _indirect - _byteWidth, BitWidthUtil.fromByteWidth(_byteWidth));
+          _indirect - _byteWidth,
+          BitWidthUtil.fromByteWidth(_byteWidth),
+        );
       } else if (_valueType == ValueType.Null) {
         _length = 0;
       } else if (_valueType == ValueType.String) {
         final indirect = _indirect;
         var sizeByteWidth = _byteWidth;
-        var size = _readUInt(indirect - sizeByteWidth,
+        var size = _readUInt(
-            BitWidthUtil.fromByteWidth(sizeByteWidth));
+          indirect - sizeByteWidth,
+          BitWidthUtil.fromByteWidth(sizeByteWidth),
+        );
         while (_buffer.getInt8(indirect + size) != 0) {
           sizeByteWidth <<= 1;
-          size = _readUInt(indirect - sizeByteWidth,
+          size = _readUInt(
-              BitWidthUtil.fromByteWidth(sizeByteWidth));
+            indirect - sizeByteWidth,
+            BitWidthUtil.fromByteWidth(sizeByteWidth),
+          );
         }
         _length = size;
       } else if (_valueType == ValueType.Key) {
@@ -289,7 +309,8 @@ class Reference {
       return result.toString();
     }
     throw UnsupportedError(
-        'Type: $_valueType is not supported for JSON conversion');
+      'Type: $_valueType is not supported for JSON conversion',
+    );
   }
 
   /// Computes the indirect offset of the value.
@@ -354,10 +375,13 @@ class Reference {
   int? _keyIndex(String key) {
     final input = utf8.encode(key);
     final keysVectorOffset = _indirect - _byteWidth * 3;
-    final indirectOffset = keysVectorOffset -
+    final indirectOffset =
+        keysVectorOffset -
         _readUInt(keysVectorOffset, BitWidthUtil.fromByteWidth(_byteWidth));
     final byteWidth = _readUInt(
-        keysVectorOffset + _byteWidth, BitWidthUtil.fromByteWidth(_byteWidth));
+      keysVectorOffset + _byteWidth,
+      BitWidthUtil.fromByteWidth(_byteWidth),
+    );
     var low = 0;
     var high = length - 1;
     while (low <= high) {
@@ -390,24 +414,37 @@ class Reference {
     final indirect = _indirect;
     final elementOffset = indirect + index * _byteWidth;
     final packedType = _buffer.getUint8(indirect + length * _byteWidth + index);
-    return Reference._(_buffer, elementOffset,
+    return Reference._(
-        BitWidthUtil.fromByteWidth(_byteWidth), packedType, "$_path/$key");
+      _buffer,
+      elementOffset,
+      BitWidthUtil.fromByteWidth(_byteWidth),
+      packedType,
+      "$_path/$key",
+    );
   }
 
   Reference _valueForIndex(int index) {
     final indirect = _indirect;
     final elementOffset = indirect + index * _byteWidth;
     final packedType = _buffer.getUint8(indirect + length * _byteWidth + index);
-    return Reference._(_buffer, elementOffset,
+    return Reference._(
-        BitWidthUtil.fromByteWidth(_byteWidth), packedType, "$_path/[$index]");
+      _buffer,
+      elementOffset,
+      BitWidthUtil.fromByteWidth(_byteWidth),
+      packedType,
+      "$_path/[$index]",
+    );
   }
 
   String _keyForIndex(int index) {
     final keysVectorOffset = _indirect - _byteWidth * 3;
-    final indirectOffset = keysVectorOffset -
+    final indirectOffset =
+        keysVectorOffset -
         _readUInt(keysVectorOffset, BitWidthUtil.fromByteWidth(_byteWidth));
     final byteWidth = _readUInt(
-        keysVectorOffset + _byteWidth, BitWidthUtil.fromByteWidth(_byteWidth));
+      keysVectorOffset + _byteWidth,
+      BitWidthUtil.fromByteWidth(_byteWidth),
+    );
     final keyOffset = indirectOffset + index * byteWidth;
     final keyIndirectOffset =
         keyOffset - _readUInt(keyOffset, BitWidthUtil.fromByteWidth(byteWidth));

dart/lib/src/types.dart

@@ -86,7 +86,8 @@ enum ValueType {
   VectorFloat,
   VectorKey,
   @Deprecated(
-      'VectorString is deprecated due to a flaw in the binary format (https://github.com/google/flatbuffers/issues/5627)')
+    'VectorString is deprecated due to a flaw in the binary format (https://github.com/google/flatbuffers/issues/5627)',
+  )
   VectorString,
   VectorInt2,
   VectorUInt2,
@@ -99,7 +100,7 @@ enum ValueType {
   VectorFloat4,
   Blob,
   Bool,
-  VectorBool
+  VectorBool,
 }
 
 class ValueTypeUtils {
@@ -153,31 +154,37 @@ class ValueTypeUtils {
   static ValueType toTypedVector(ValueType self, int length) {
     if (length == 0) {
       return ValueTypeUtils.fromInt(
-          toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt));
+        toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt),
+      );
     }
     if (length == 2) {
       return ValueTypeUtils.fromInt(
-          toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt2));
+        toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt2),
+      );
     }
     if (length == 3) {
       return ValueTypeUtils.fromInt(
-          toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt3));
+        toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt3),
+      );
     }
     if (length == 4) {
       return ValueTypeUtils.fromInt(
-          toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt4));
+        toInt(self) - toInt(ValueType.Int) + toInt(ValueType.VectorInt4),
+      );
     }
     throw Exception('unexpected length ' + length.toString());
   }
 
   static ValueType typedVectorElementType(ValueType self) {
     return ValueTypeUtils.fromInt(
-        toInt(self) - toInt(ValueType.VectorInt) + toInt(ValueType.Int));
+      toInt(self) - toInt(ValueType.VectorInt) + toInt(ValueType.Int),
+    );
   }
 
   static ValueType fixedTypedVectorElementType(ValueType self) {
     return ValueTypeUtils.fromInt(
-        (toInt(self) - toInt(ValueType.VectorInt2)) % 3 + toInt(ValueType.Int));
+      (toInt(self) - toInt(ValueType.VectorInt2)) % 3 + toInt(ValueType.Int),
+    );
   }
 
   static int fixedTypedVectorElementSize(ValueType self) {

dart/pubspec.yaml

@@ -1,5 +1,5 @@
 name: flat_buffers
-version: 25.2.10
+version: 25.12.19
 description: FlatBuffers reading and writing library for Dart. Based on original work by Konstantin Scheglov and Paul Berry of the Dart SDK team.
 homepage: https://github.com/google/flatbuffers
 documentation: https://google.github.io/flatbuffers/index.html

dart/test/bool_structs_generated.dart

@@ -2,8 +2,8 @@
 // ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
 
 import 'dart:typed_data' show Uint8List;
-import 'package:flat_buffers/flat_buffers.dart' as fb;
 
+import 'package:flat_buffers/flat_buffers.dart' as fb;
 
 class Foo {
   Foo._(this._bc, this._bcOffset);
@@ -17,15 +17,15 @@ class Foo {
   final fb.BufferContext _bc;
   final int _bcOffset;
 
-  FooProperties? get myFoo => FooProperties.reader.vTableGetNullable(_bc, _bcOffset, 4);
+  FooProperties? get myFoo =>
+      FooProperties.reader.vTableGetNullable(_bc, _bcOffset, 4);
 
   @override
   String toString() {
     return 'Foo{myFoo: ${myFoo}}';
   }
 
-  FooT unpack() => FooT(
+  FooT unpack() => FooT(myFoo: myFoo?.unpack());
-      myFoo: myFoo?.unpack());
 
   static int pack(fb.Builder fbBuilder, FooT? object) {
     if (object == null) return 0;
@@ -36,8 +36,7 @@ class Foo {
 class FooT implements fb.Packable {
   FooPropertiesT? myFoo;
 
-  FooT({
+  FooT({this.myFoo});
-      this.myFoo});
 
   @override
   int pack(fb.Builder fbBuilder) {
@@ -58,8 +57,7 @@ class _FooReader extends fb.TableReader<Foo> {
   const _FooReader();
 
   @override
-  Foo createObject(fb.BufferContext bc, int offset) => 
+  Foo createObject(fb.BufferContext bc, int offset) => Foo._(bc, offset);
-    Foo._(bc, offset);
 }
 
 class FooBuilder {
@@ -84,10 +82,7 @@ class FooBuilder {
 class FooObjectBuilder extends fb.ObjectBuilder {
   final FooPropertiesObjectBuilder? _myFoo;
 
-  FooObjectBuilder({
+  FooObjectBuilder({FooPropertiesObjectBuilder? myFoo}) : _myFoo = myFoo;
-    FooPropertiesObjectBuilder? myFoo,
-  })
-      : _myFoo = myFoo;
 
   /// Finish building, and store into the [fbBuilder].
   @override
@@ -107,6 +102,7 @@ class FooObjectBuilder extends fb.ObjectBuilder {
     return fbBuilder.buffer;
   }
 }
+
 class FooProperties {
   FooProperties._(this._bc, this._bcOffset);
 
@@ -123,9 +119,7 @@ class FooProperties {
     return 'FooProperties{a: ${a}, b: ${b}}';
   }
 
-  FooPropertiesT unpack() => FooPropertiesT(
+  FooPropertiesT unpack() => FooPropertiesT(a: a, b: b);
-      a: a,
-      b: b);
 
   static int pack(fb.Builder fbBuilder, FooPropertiesT? object) {
     if (object == null) return 0;
@@ -137,9 +131,7 @@ class FooPropertiesT implements fb.Packable {
   bool a;
   bool b;
 
-  FooPropertiesT({
+  FooPropertiesT({required this.a, required this.b});
-      required this.a,
-      required this.b});
 
   @override
   int pack(fb.Builder fbBuilder) {
@@ -161,8 +153,8 @@ class _FooPropertiesReader extends fb.StructReader<FooProperties> {
   int get size => 2;
 
   @override
-  FooProperties createObject(fb.BufferContext bc, int offset) => 
+  FooProperties createObject(fb.BufferContext bc, int offset) =>
-    FooProperties._(bc, offset);
+      FooProperties._(bc, offset);
 }
 
 class FooPropertiesBuilder {
@@ -175,19 +167,15 @@ class FooPropertiesBuilder {
     fbBuilder.putBool(a);
     return fbBuilder.offset;
   }
-
 }
 
 class FooPropertiesObjectBuilder extends fb.ObjectBuilder {
   final bool _a;
   final bool _b;
 
-  FooPropertiesObjectBuilder({
+  FooPropertiesObjectBuilder({required bool a, required bool b})
-    required bool a,
+    : _a = a,
-    required bool b,
+      _b = b;
-  })
-      : _a = a,
-        _b = b;
 
   /// Finish building, and store into the [fbBuilder].
   @override

dart/test/enums_generated.dart

@@ -2,8 +2,8 @@
 // ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
 
 import 'dart:typed_data' show Uint8List;
-import 'package:flat_buffers/flat_buffers.dart' as fb;
 
+import 'package:flat_buffers/flat_buffers.dart' as fb;
 
 enum OptionsEnum {
   A(1),
@@ -15,10 +15,14 @@ enum OptionsEnum {
 
   factory OptionsEnum.fromValue(int value) {
     switch (value) {
-      case 1: return OptionsEnum.A;
+      case 1:
-      case 2: return OptionsEnum.B;
+        return OptionsEnum.A;
-      case 3: return OptionsEnum.C;
+      case 2:
-      default: throw StateError('Invalid value $value for bit flag enum');
+        return OptionsEnum.B;
+      case 3:
+        return OptionsEnum.C;
+      default:
+        throw StateError('Invalid value $value for bit flag enum');
     }
   }
 
@@ -53,7 +57,9 @@ class MyTable {
   final fb.BufferContext _bc;
   final int _bcOffset;
 
-  List<OptionsEnum>? get options => const fb.ListReader<OptionsEnum>(OptionsEnum.reader).vTableGetNullable(_bc, _bcOffset, 4);
+  List<OptionsEnum>? get options => const fb.ListReader<OptionsEnum>(
+    OptionsEnum.reader,
+  ).vTableGetNullable(_bc, _bcOffset, 4);
 
   @override
   String toString() {
@@ -61,7 +67,11 @@ class MyTable {
   }
 
   MyTableT unpack() => MyTableT(
-      options: const fb.ListReader<OptionsEnum>(OptionsEnum.reader, lazy: false).vTableGetNullable(_bc, _bcOffset, 4));
+    options: const fb.ListReader<OptionsEnum>(
+      OptionsEnum.reader,
+      lazy: false,
+    ).vTableGetNullable(_bc, _bcOffset, 4),
+  );
 
   static int pack(fb.Builder fbBuilder, MyTableT? object) {
     if (object == null) return 0;
@@ -72,12 +82,12 @@ class MyTable {
 class MyTableT implements fb.Packable {
   List<OptionsEnum>? options;
 
-  MyTableT({
+  MyTableT({this.options});
-      this.options});
 
   @override
   int pack(fb.Builder fbBuilder) {
-    final int? optionsOffset = options == null ? null
+    final int? optionsOffset = options == null
+        ? null
         : fbBuilder.writeListUint32(options!.map((f) => f.value).toList());
     fbBuilder.startTable(1);
     fbBuilder.addOffset(0, optionsOffset);
@@ -94,8 +104,8 @@ class _MyTableReader extends fb.TableReader<MyTable> {
   const _MyTableReader();
 
   @override
-  MyTable createObject(fb.BufferContext bc, int offset) => 
+  MyTable createObject(fb.BufferContext bc, int offset) =>
-    MyTable._(bc, offset);
+      MyTable._(bc, offset);
 }
 
 class MyTableBuilder {
@@ -120,15 +130,13 @@ class MyTableBuilder {
 class MyTableObjectBuilder extends fb.ObjectBuilder {
   final List<OptionsEnum>? _options;
 
-  MyTableObjectBuilder({
+  MyTableObjectBuilder({List<OptionsEnum>? options}) : _options = options;
-    List<OptionsEnum>? options,
-  })
-      : _options = options;
 
   /// Finish building, and store into the [fbBuilder].
   @override
   int finish(fb.Builder fbBuilder) {
-    final int? optionsOffset = _options == null ? null
+    final int? optionsOffset = _options == null
+        ? null
         : fbBuilder.writeListUint32(_options!.map((f) => f.value).toList());
     fbBuilder.startTable(1);
     fbBuilder.addOffset(0, optionsOffset);

dart/test/flat_buffers_test.dart

@@ -1,16 +1,15 @@
-import 'dart:typed_data';
 import 'dart:io' as io;
-
+import 'dart:typed_data';
-import 'package:path/path.dart' as path;
 
 import 'package:flat_buffers/flat_buffers.dart';
+import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
-import './monster_test_my_game.example_generated.dart' as example;
-import './monster_test_my_game.example2_generated.dart' as example2;
-import 'enums_generated.dart' as example3;
 import './bool_structs_generated.dart' as example4;
+import './monster_test_my_game.example2_generated.dart' as example2;
+import './monster_test_my_game.example_generated.dart' as example;
+import 'enums_generated.dart' as example3;
 
 main() {
   defineReflectiveSuite(() {
@@ -29,11 +28,9 @@ int indexToField(int index) {
 @reflectiveTest
 class CheckOtherLangaugesData {
   test_cppData() async {
-    List<int> data = await io.File(path.join(
+    List<int> data = await io.File(
-      path.context.current,
+      path.join(path.context.current, 'test', 'monsterdata_test.mon'),
-      'test',
+    ).readAsBytes();
-      'monsterdata_test.mon',
-    )).readAsBytes();
     example.Monster mon = example.Monster(data);
     expect(mon.hp, 80);
     expect(mon.mana, 150);
@@ -61,91 +58,92 @@ class CheckOtherLangaugesData {
 
     // this will fail if accessing any field fails.
     expect(
-        mon.toString(),
+      mon.toString(),
-        'Monster{'
+      'Monster{'
-        'pos: Vec3{x: 1.0, y: 2.0, z: 3.0, test1: 3.0, test2: Color.Green, test3: Test{a: 5, b: 6}}, '
+      'pos: Vec3{x: 1.0, y: 2.0, z: 3.0, test1: 3.0, test2: Color.Green, test3: Test{a: 5, b: 6}}, '
-        'mana: 150, hp: 80, name: MyMonster, inventory: [0, 1, 2, 3, 4], '
+      'mana: 150, hp: 80, name: MyMonster, inventory: [0, 1, 2, 3, 4], '
-        'color: Color.Blue, testType: AnyTypeId.Monster, '
+      'color: Color.Blue, testType: AnyTypeId.Monster, '
-        'test: Monster{pos: null, mana: 150, hp: 100, name: Fred, '
+      'test: Monster{pos: null, mana: 150, hp: 100, name: Fred, '
-        'inventory: null, color: Color.Blue, testType: null, '
+      'inventory: null, color: Color.Blue, testType: null, '
-        'test: null, test4: null, testarrayofstring: null, '
+      'test: null, test4: null, testarrayofstring: null, '
-        'testarrayoftables: null, enemy: null, testnestedflatbuffer: null, '
+      'testarrayoftables: null, enemy: null, testnestedflatbuffer: null, '
-        'testempty: null, testbool: false, testhashs32Fnv1: 0, '
+      'testempty: null, testbool: false, testhashs32Fnv1: 0, '
-        'testhashu32Fnv1: 0, testhashs64Fnv1: 0, testhashu64Fnv1: 0, '
+      'testhashu32Fnv1: 0, testhashs64Fnv1: 0, testhashu64Fnv1: 0, '
-        'testhashs32Fnv1a: 0, testhashu32Fnv1a: 0, testhashs64Fnv1a: 0, '
+      'testhashs32Fnv1a: 0, testhashu32Fnv1a: 0, testhashs64Fnv1a: 0, '
-        'testhashu64Fnv1a: 0, testarrayofbools: null, testf: 3.14159, '
+      'testhashu64Fnv1a: 0, testarrayofbools: null, testf: 3.14159, '
-        'testf2: 3.0, testf3: 0.0, testarrayofstring2: null, '
+      'testf2: 3.0, testf3: 0.0, testarrayofstring2: null, '
-        'testarrayofsortedstruct: null, flex: null, test5: null, '
+      'testarrayofsortedstruct: null, flex: null, test5: null, '
-        'vectorOfLongs: null, vectorOfDoubles: null, parentNamespaceTest: null, '
+      'vectorOfLongs: null, vectorOfDoubles: null, parentNamespaceTest: null, '
-        'vectorOfReferrables: null, singleWeakReference: 0, '
+      'vectorOfReferrables: null, singleWeakReference: 0, '
-        'vectorOfWeakReferences: null, vectorOfStrongReferrables: null, '
+      'vectorOfWeakReferences: null, vectorOfStrongReferrables: null, '
-        'coOwningReference: 0, vectorOfCoOwningReferences: null, '
+      'coOwningReference: 0, vectorOfCoOwningReferences: null, '
-        'nonOwningReference: 0, vectorOfNonOwningReferences: null, '
+      'nonOwningReference: 0, vectorOfNonOwningReferences: null, '
-        'anyUniqueType: null, anyUnique: null, anyAmbiguousType: null, '
+      'anyUniqueType: null, anyUnique: null, anyAmbiguousType: null, '
-        'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
+      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
-        'testrequirednestedflatbuffer: null, scalarKeySortedTables: null, '
+      'testrequirednestedflatbuffer: null, scalarKeySortedTables: null, '
-        'nativeInline: null, '
+      'nativeInline: null, '
-        'longEnumNonEnumDefault: LongEnum._default, '
+      'longEnumNonEnumDefault: LongEnum._default, '
-        'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
+      'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
-        'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
+      'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
-        'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
+      'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
-        '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}, '
+      '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}, '
-        'test4: [Test{a: 10, b: 20}, Test{a: 30, b: 40}], '
+      'test4: [Test{a: 10, b: 20}, Test{a: 30, b: 40}], '
-        'testarrayofstring: [test1, test2], testarrayoftables: null, '
+      'testarrayofstring: [test1, test2], testarrayoftables: null, '
-        'enemy: Monster{pos: null, mana: 150, hp: 100, name: Fred, '
+      'enemy: Monster{pos: null, mana: 150, hp: 100, name: Fred, '
-        'inventory: null, color: Color.Blue, testType: null, '
+      'inventory: null, color: Color.Blue, testType: null, '
-        'test: null, test4: null, testarrayofstring: null, '
+      'test: null, test4: null, testarrayofstring: null, '
-        'testarrayoftables: null, enemy: null, testnestedflatbuffer: null, '
+      'testarrayoftables: null, enemy: null, testnestedflatbuffer: null, '
-        'testempty: null, testbool: false, testhashs32Fnv1: 0, '
+      'testempty: null, testbool: false, testhashs32Fnv1: 0, '
-        'testhashu32Fnv1: 0, testhashs64Fnv1: 0, testhashu64Fnv1: 0, '
+      'testhashu32Fnv1: 0, testhashs64Fnv1: 0, testhashu64Fnv1: 0, '
-        'testhashs32Fnv1a: 0, testhashu32Fnv1a: 0, testhashs64Fnv1a: 0, '
+      'testhashs32Fnv1a: 0, testhashu32Fnv1a: 0, testhashs64Fnv1a: 0, '
-        'testhashu64Fnv1a: 0, testarrayofbools: null, testf: 3.14159, '
+      'testhashu64Fnv1a: 0, testarrayofbools: null, testf: 3.14159, '
-        'testf2: 3.0, testf3: 0.0, testarrayofstring2: null, '
+      'testf2: 3.0, testf3: 0.0, testarrayofstring2: null, '
-        'testarrayofsortedstruct: null, flex: null, test5: null, '
+      'testarrayofsortedstruct: null, flex: null, test5: null, '
-        'vectorOfLongs: null, vectorOfDoubles: null, parentNamespaceTest: null, '
+      'vectorOfLongs: null, vectorOfDoubles: null, parentNamespaceTest: null, '
-        'vectorOfReferrables: null, singleWeakReference: 0, '
+      'vectorOfReferrables: null, singleWeakReference: 0, '
-        'vectorOfWeakReferences: null, vectorOfStrongReferrables: null, '
+      'vectorOfWeakReferences: null, vectorOfStrongReferrables: null, '
-        'coOwningReference: 0, vectorOfCoOwningReferences: null, '
+      'coOwningReference: 0, vectorOfCoOwningReferences: null, '
-        'nonOwningReference: 0, vectorOfNonOwningReferences: null, '
+      'nonOwningReference: 0, vectorOfNonOwningReferences: null, '
-        'anyUniqueType: null, anyUnique: null, anyAmbiguousType: null, '
+      'anyUniqueType: null, anyUnique: null, anyAmbiguousType: null, '
-        'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
+      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
-        'testrequirednestedflatbuffer: null, scalarKeySortedTables: null, '
+      'testrequirednestedflatbuffer: null, scalarKeySortedTables: null, '
-        'nativeInline: null, '
+      'nativeInline: null, '
-        'longEnumNonEnumDefault: LongEnum._default, '
+      'longEnumNonEnumDefault: LongEnum._default, '
-        'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
+      'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
-        'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
+      'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
-        'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
+      'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
-        '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}, '
+      '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}, '
-        'testnestedflatbuffer: null, testempty: null, testbool: true, '
+      'testnestedflatbuffer: null, testempty: null, testbool: true, '
-        'testhashs32Fnv1: -579221183, testhashu32Fnv1: 3715746113, '
+      'testhashs32Fnv1: -579221183, testhashu32Fnv1: 3715746113, '
-        'testhashs64Fnv1: 7930699090847568257, '
+      'testhashs64Fnv1: 7930699090847568257, '
-        'testhashu64Fnv1: 7930699090847568257, '
+      'testhashu64Fnv1: 7930699090847568257, '
-        'testhashs32Fnv1a: -1904106383, testhashu32Fnv1a: 2390860913, '
+      'testhashs32Fnv1a: -1904106383, testhashu32Fnv1a: 2390860913, '
-        'testhashs64Fnv1a: 4898026182817603057, '
+      'testhashs64Fnv1a: 4898026182817603057, '
-        'testhashu64Fnv1a: 4898026182817603057, '
+      'testhashu64Fnv1a: 4898026182817603057, '
-        'testarrayofbools: [true, false, true], testf: 3.14159, testf2: 3.0, '
+      'testarrayofbools: [true, false, true], testf: 3.14159, testf2: 3.0, '
-        'testf3: 0.0, testarrayofstring2: null, testarrayofsortedstruct: ['
+      'testf3: 0.0, testarrayofstring2: null, testarrayofsortedstruct: ['
-        'Ability{id: 0, distance: 45}, Ability{id: 1, distance: 21}, '
+      'Ability{id: 0, distance: 45}, Ability{id: 1, distance: 21}, '
-        'Ability{id: 5, distance: 12}], '
+      'Ability{id: 5, distance: 12}], '
-        'flex: null, test5: [Test{a: 10, b: 20}, Test{a: 30, b: 40}], '
+      'flex: null, test5: [Test{a: 10, b: 20}, Test{a: 30, b: 40}], '
-        'vectorOfLongs: [1, 100, 10000, 1000000, 100000000], '
+      'vectorOfLongs: [1, 100, 10000, 1000000, 100000000], '
-        'vectorOfDoubles: [-1.7976931348623157e+308, 0.0, 1.7976931348623157e+308], '
+      'vectorOfDoubles: [-1.7976931348623157e+308, 0.0, 1.7976931348623157e+308], '
-        'parentNamespaceTest: null, vectorOfReferrables: null, '
+      'parentNamespaceTest: null, vectorOfReferrables: null, '
-        'singleWeakReference: 0, vectorOfWeakReferences: null, '
+      'singleWeakReference: 0, vectorOfWeakReferences: null, '
-        'vectorOfStrongReferrables: null, coOwningReference: 0, '
+      'vectorOfStrongReferrables: null, coOwningReference: 0, '
-        'vectorOfCoOwningReferences: null, nonOwningReference: 0, '
+      'vectorOfCoOwningReferences: null, nonOwningReference: 0, '
-        'vectorOfNonOwningReferences: null, '
+      'vectorOfNonOwningReferences: null, '
-        'anyUniqueType: null, anyUnique: null, '
+      'anyUniqueType: null, anyUnique: null, '
-        'anyAmbiguousType: null, '
+      'anyAmbiguousType: null, '
-        'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
+      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
-        'testrequirednestedflatbuffer: null, scalarKeySortedTables: [Stat{id: '
+      'testrequirednestedflatbuffer: null, scalarKeySortedTables: [Stat{id: '
-        'miss, val: 0, count: 0}, Stat{id: hit, val: 10, count: 1}], '
+      'miss, val: 0, count: 0}, Stat{id: hit, val: 10, count: 1}], '
-        'nativeInline: Test{a: 1, b: 2}, '
+      'nativeInline: Test{a: 1, b: 2}, '
-        'longEnumNonEnumDefault: LongEnum._default, '
+      'longEnumNonEnumDefault: LongEnum._default, '
-        'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
+      'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
-        'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
+      'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
-        'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
+      'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
-        '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}');
+      '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}',
+    );
   }
 }
 
@@ -298,20 +296,72 @@ class BuilderTest {
     expect(allocator.buffer(builder.size()), [2, 0, 0, 0, 0, 0, 0, 1]);
 
     builder.putUint8(3);
-    expect(
+    expect(allocator.buffer(builder.size()), [
-        allocator.buffer(builder.size()), [0, 0, 0, 3, 2, 0, 0, 0, 0, 0, 0, 1]);
+      0,
+      0,
+      0,
+      3,
+      2,
+      0,
+      0,
+      0,
+      0,
+      0,
+      0,
+      1,
+    ]);
 
     builder.putUint8(4);
-    expect(
+    expect(allocator.buffer(builder.size()), [
-        allocator.buffer(builder.size()), [0, 0, 4, 3, 2, 0, 0, 0, 0, 0, 0, 1]);
+      0,
+      0,
+      4,
+      3,
+      2,
+      0,
+      0,
+      0,
+      0,
+      0,
+      0,
+      1,
+    ]);
 
     builder.putUint8(5);
-    expect(
+    expect(allocator.buffer(builder.size()), [
-        allocator.buffer(builder.size()), [0, 5, 4, 3, 2, 0, 0, 0, 0, 0, 0, 1]);
+      0,
+      5,
+      4,
+      3,
+      2,
+      0,
+      0,
+      0,
+      0,
+      0,
+      0,
+      1,
+    ]);
 
     builder.putUint32(6);
-    expect(allocator.buffer(builder.size()),
+    expect(allocator.buffer(builder.size()), [
-        [6, 0, 0, 0, 0, 5, 4, 3, 2, 0, 0, 0, 0, 0, 0, 1]);
+      6,
+      0,
+      0,
+      0,
+      0,
+      5,
+      4,
+      3,
+      2,
+      0,
+      0,
+      0,
+      0,
+      0,
+      0,
+      1,
+    ]);
   }
 
   void test_table_default() {
@@ -331,14 +381,14 @@ class BuilderTest {
     int objectOffset = buffer.derefObject(0);
     // was not written, so uses the new default value
     expect(
-        const Int32Reader()
+      const Int32Reader().vTableGet(buffer, objectOffset, indexToField(0), 15),
-            .vTableGet(buffer, objectOffset, indexToField(0), 15),
+      15,
-        15);
+    );
     // has the written value
     expect(
-        const Int32Reader()
+      const Int32Reader().vTableGet(buffer, objectOffset, indexToField(1), 15),
-            .vTableGet(buffer, objectOffset, indexToField(1), 15),
+      20,
-        20);
+    );
   }
 
   void test_table_format([Builder? builder]) {
@@ -370,7 +420,9 @@ class BuilderTest {
     for (int i = 0; i < 3; i++) {
       int offset = byteData.getUint16(vTableLoc + 4 + 2 * i, Endian.little);
       expect(
-          byteData.getInt32(tableDataLoc + offset, Endian.little), 10 + 10 * i);
+        byteData.getInt32(tableDataLoc + offset, Endian.little),
+        10 + 10 * i,
+      );
     }
   }
 
@@ -380,10 +432,14 @@ class BuilderTest {
     List<int> byteList;
     {
       Builder builder = Builder(initialSize: 0);
-      int? latinStringOffset =
+      int? latinStringOffset = builder.writeString(
-          builder.writeString(latinString, asciiOptimization: true);
+        latinString,
-      int? unicodeStringOffset =
+        asciiOptimization: true,
-          builder.writeString(unicodeString, asciiOptimization: true);
+      );
+      int? unicodeStringOffset = builder.writeString(
+        unicodeString,
+        asciiOptimization: true,
+      );
       builder.startTable(2);
       builder.addOffset(0, latinStringOffset);
       builder.addOffset(1, unicodeStringOffset);
@@ -395,13 +451,19 @@ class BuilderTest {
     BufferContext buf = BufferContext.fromBytes(byteList);
     int objectOffset = buf.derefObject(0);
     expect(
-        const StringReader()
+      const StringReader().vTableGetNullable(
-            .vTableGetNullable(buf, objectOffset, indexToField(0)),
+        buf,
-        latinString);
+        objectOffset,
+        indexToField(0),
+      ),
+      latinString,
+    );
     expect(
-        const StringReader(asciiOptimization: true)
+      const StringReader(
-            .vTableGetNullable(buf, objectOffset, indexToField(1)),
+        asciiOptimization: true,
-        unicodeString);
+      ).vTableGetNullable(buf, objectOffset, indexToField(1)),
+      unicodeString,
+    );
   }
 
   void test_table_types([Builder? builder]) {
@@ -425,33 +487,41 @@ class BuilderTest {
     BufferContext buf = BufferContext.fromBytes(byteList);
     int objectOffset = buf.derefObject(0);
     expect(
-        const BoolReader()
+      const BoolReader().vTableGetNullable(buf, objectOffset, indexToField(0)),
-            .vTableGetNullable(buf, objectOffset, indexToField(0)),
+      true,
-        true);
+    );
     expect(
-        const Int8Reader()
+      const Int8Reader().vTableGetNullable(buf, objectOffset, indexToField(1)),
-            .vTableGetNullable(buf, objectOffset, indexToField(1)),
+      10,
-        10);
+    );
     expect(
-        const Int32Reader()
+      const Int32Reader().vTableGetNullable(buf, objectOffset, indexToField(2)),
-            .vTableGetNullable(buf, objectOffset, indexToField(2)),
+      20,
-        20);
+    );
     expect(
-        const StringReader()
+      const StringReader().vTableGetNullable(
-            .vTableGetNullable(buf, objectOffset, indexToField(3)),
+        buf,
-        '12345');
+        objectOffset,
+        indexToField(3),
+      ),
+      '12345',
+    );
     expect(
-        const Int32Reader()
+      const Int32Reader().vTableGetNullable(buf, objectOffset, indexToField(4)),
-            .vTableGetNullable(buf, objectOffset, indexToField(4)),
+      40,
-        40);
+    );
     expect(
-        const Uint32Reader()
+      const Uint32Reader().vTableGetNullable(
-            .vTableGetNullable(buf, objectOffset, indexToField(5)),
+        buf,
-        0x9ABCDEF0);
+        objectOffset,
+        indexToField(5),
+      ),
+      0x9ABCDEF0,
+    );
     expect(
-        const Uint8Reader()
+      const Uint8Reader().vTableGetNullable(buf, objectOffset, indexToField(6)),
-            .vTableGetNullable(buf, objectOffset, indexToField(6)),
+      0x9A,
-        0x9A);
+    );
   }
 
   void test_writeList_of_Uint32() {
@@ -596,8 +666,9 @@ class BuilderTest {
     }
     // read and verify
     BufferContext buf = BufferContext.fromBytes(byteList);
-    List<TestPointImpl> items =
+    List<TestPointImpl> items = const ListReader<TestPointImpl>(
-        const ListReader<TestPointImpl>(TestPointReader()).read(buf, 0);
+      TestPointReader(),
+    ).read(buf, 0);
     expect(items, hasLength(2));
     expect(items[0].x, 10);
     expect(items[0].y, 20);
@@ -627,8 +698,10 @@ class BuilderTest {
     List<int> byteList;
     {
       builder ??= Builder(initialSize: 0);
-      int listOffset = builder.writeList(
+      int listOffset = builder.writeList([
-          [builder.writeString('12345'), builder.writeString('ABC')]);
+        builder.writeString('12345'),
+        builder.writeString('ABC'),
+      ]);
       builder.startTable(1);
       builder.addOffset(0, listOffset);
       int offset = builder.endTable();
@@ -707,13 +780,14 @@ class BuilderTest {
       test_table_format,
       test_table_types,
       test_writeList_ofObjects,
-      test_writeList_ofStrings_inObject
+      test_writeList_ofStrings_inObject,
     ];
 
     // Execute all test cases in all permutations of their order.
     // To do that, we generate permutations of test case indexes.
-    final testCasesPermutations =
+    final testCasesPermutations = _permutationsOf(
-        _permutationsOf(List.generate(testCases.length, (index) => index));
+      List.generate(testCases.length, (index) => index),
+    );
     expect(testCasesPermutations.length, _factorial(testCases.length));
 
     for (var indexes in testCasesPermutations) {
@@ -783,28 +857,28 @@ class ObjectAPITest {
   void test_tableMonster() {
     final monster = example.MonsterT()
       ..pos = example.Vec3T(
-          x: 1,
+        x: 1,
-          y: 2,
+        y: 2,
-          z: 3,
+        z: 3,
-          test1: 4.0,
+        test1: 4.0,
-          test2: example.Color.Red,
+        test2: example.Color.Red,
-          test3: example.TestT(a: 1, b: 2))
+        test3: example.TestT(a: 1, b: 2),
+      )
       ..mana = 2
       ..name = 'Monstrous'
       ..inventory = [24, 42]
       ..color = example.Color.Green
-      // TODO be smarter for unions and automatically set the `type` field?
       ..testType = example.AnyTypeId.MyGame_Example2_Monster
       ..test = example2.MonsterT()
       ..test4 = [example.TestT(a: 3, b: 4), example.TestT(a: 5, b: 6)]
       ..testarrayofstring = ["foo", "bar"]
-      ..testarrayoftables = [example.MonsterT(name: 'Oof')]
+      ..testarrayoftables = [example.MonsterT(name: 'Oof', testf: 2.75)]
-      ..enemy = example.MonsterT(name: 'Enemy')
+      ..enemy = example.MonsterT(name: 'Enemy', testf: 2.5)
       ..testarrayofbools = [false, true, false]
-      ..testf = 42.24
+      ..testf = 42.25
       ..testarrayofsortedstruct = [
         example.AbilityT(id: 1, distance: 5),
-        example.AbilityT(id: 3, distance: 7)
+        example.AbilityT(id: 3, distance: 7),
       ]
       ..vectorOfLongs = [5, 6, 7]
       ..vectorOfDoubles = [8.9, 9.0, 10.1, 11.2]
@@ -819,16 +893,15 @@ class ObjectAPITest {
     fbBuilder.finish(offset);
     final data = fbBuilder.buffer;
 
-    // TODO currently broken because of struct builder issue, see #6688
+    final monster2 = example.Monster(data); // Monster (reader)
-    // final monster2 = example.Monster(data); // Monster (reader)
+    expect(
-    // expect(
+        // map Monster => MonsterT, Vec3 => Vec3T, ...
-    //     // map Monster => MonsterT, Vec3 => Vec3T, ...
+        monster2.toString().replaceAllMapped(
-    //     monster2.toString().replaceAllMapped(
+            RegExp('([a-zA-z0-9]+){'), (match) => match.group(1)! + 'T{'),
-    //         RegExp('([a-zA-z0-9]+){'), (match) => match.group(1) + 'T{'),
+        monster.toString());
-    //     monster.toString());
+
-    //
+    final monster3 = monster2.unpack(); // MonsterT
-    // final monster3 = monster2.unpack(); // MonsterT
+    expect(monster3.toString(), monster.toString());
-    // expect(monster3.toString(), monster.toString());
   }
 
   void test_Lists() {
@@ -867,8 +940,9 @@ class StringListWrapperImpl {
 
   StringListWrapperImpl(this.bp, this.offset);
 
-  List<String>? get items => const ListReader<String>(StringReader())
+  List<String>? get items => const ListReader<String>(
-      .vTableGetNullable(bp, offset, indexToField(0));
+    StringReader(),
+  ).vTableGetNullable(bp, offset, indexToField(0));
 }
 
 class StringListWrapperReader extends TableReader<StringListWrapperImpl> {
@@ -906,10 +980,14 @@ class GeneratorTest {
     expect(example.Color.values, same(example.Color.values));
     expect(example.Race.values, same(example.Race.values));
     expect(example.AnyTypeId.values, same(example.AnyTypeId.values));
-    expect(example.AnyUniqueAliasesTypeId.values,
+    expect(
-        same(example.AnyUniqueAliasesTypeId.values));
+      example.AnyUniqueAliasesTypeId.values,
-    expect(example.AnyAmbiguousAliasesTypeId.values,
+      same(example.AnyUniqueAliasesTypeId.values),
-        same(example.AnyAmbiguousAliasesTypeId.values));
+    );
+    expect(
+      example.AnyAmbiguousAliasesTypeId.values,
+      same(example.AnyAmbiguousAliasesTypeId.values),
+    );
   }
 }
 
@@ -917,11 +995,13 @@ class GeneratorTest {
 @reflectiveTest
 class ListOfEnumsTest {
   void test_listOfEnums() async {
-    var mytable = example3.MyTableObjectBuilder(options: [
+    var mytable = example3.MyTableObjectBuilder(
-      example3.OptionsEnum.A,
+      options: [
-      example3.OptionsEnum.B,
+        example3.OptionsEnum.A,
-      example3.OptionsEnum.C
+        example3.OptionsEnum.B,
-    ]);
+        example3.OptionsEnum.C,
+      ],
+    );
     var bytes = mytable.toBytes();
     var mytable_read = example3.MyTable(bytes);
     expect(mytable_read.options![0].value, example3.OptionsEnum.A.value);
@@ -934,7 +1014,8 @@ class ListOfEnumsTest {
 class BoolInStructTest {
   void test_boolInStruct() async {
     var mystruct = example4.FooObjectBuilder(
-        myFoo: example4.FooPropertiesObjectBuilder(a: true, b: false));
+      myFoo: example4.FooPropertiesObjectBuilder(a: true, b: false),
+    );
     var bytes = mystruct.toBytes();
     var mystruct_read = example4.Foo(bytes);
     expect(mystruct_read.myFoo!.a, true);

dart/test/flex_builder_test.dart

@@ -62,8 +62,23 @@ void main() {
     {
       var flx = Builder();
       flx.addString('hello 😱');
-      expect(flx.finish(),
+      expect(flx.finish(), [
-          [10, 104, 101, 108, 108, 111, 32, 240, 159, 152, 177, 0, 11, 20, 1]);
+        10,
+        104,
+        101,
+        108,
+        108,
+        111,
+        32,
+        240,
+        159,
+        152,
+        177,
+        0,
+        11,
+        20,
+        1,
+      ]);
     }
   });
 
@@ -117,7 +132,7 @@ void main() {
         192,
         16,
         75,
-        1
+        1,
       ]);
     }
     {
@@ -177,7 +192,7 @@ void main() {
         7,
         3,
         60,
-        1
+        1,
       ]);
     }
     {
@@ -215,7 +230,7 @@ void main() {
         10,
         6,
         60,
-        1
+        1,
       ]);
     }
     {
@@ -300,9 +315,24 @@ void main() {
         104,
         45,
         43,
-        1
+        1,
       ]);
     }
+    {
+      // Default buffer is 2048 bytes, add 2300 bytes of strings that force it
+      // to grow.
+      final s1 = 'A' * 1000;
+      final s2 = 'B' * 800;
+      final s3 = 'C' * 500;
+
+      var flx = Builder()
+        ..startVector()
+        ..addString(s1)
+        ..addString(s2)
+        ..addString(s3)
+        ..end();
+      expect(flx.finish().length, 2323);
+    }
   });
 
   test('build map', () {
@@ -322,8 +352,24 @@ void main() {
         ..addKey('')
         ..addInt(45)
         ..end();
-      expect(
+      expect(flx.finish(), [
-          flx.finish(), [97, 0, 0, 2, 2, 5, 2, 1, 2, 45, 12, 4, 4, 4, 36, 1]);
+        97,
+        0,
+        0,
+        2,
+        2,
+        5,
+        2,
+        1,
+        2,
+        45,
+        12,
+        4,
+        4,
+        4,
+        36,
+        1,
+      ]);
     }
     {
       var flx = Builder()
@@ -367,7 +413,7 @@ void main() {
         36,
         4,
         40,
-        1
+        1,
       ]);
     }
   });
@@ -381,133 +427,152 @@ void main() {
 
   test('build from object', () {
     expect(
-        Builder.buildFromObject(Uint8List.fromList([1, 2, 3]).buffer)
+      Builder.buildFromObject(
-            .asUint8List(),
+        Uint8List.fromList([1, 2, 3]).buffer,
-        [3, 1, 2, 3, 3, 100, 1]);
+      ).asUint8List(),
+      [3, 1, 2, 3, 3, 100, 1],
+    );
     expect(Builder.buildFromObject(null).asUint8List(), [0, 0, 1]);
     expect(Builder.buildFromObject(true).asUint8List(), [1, 104, 1]);
     expect(Builder.buildFromObject(false).asUint8List(), [0, 104, 1]);
     expect(Builder.buildFromObject(25).asUint8List(), [25, 4, 1]);
     expect(Builder.buildFromObject(-250).asUint8List(), [6, 255, 5, 2]);
+    expect(Builder.buildFromObject(-2.50).asUint8List(), [
+      0,
+      0,
+      32,
+      192,
+      14,
+      4,
+    ]);
+    expect(Builder.buildFromObject('Maxim').asUint8List(), [
+      5,
+      77,
+      97,
+      120,
+      105,
+      109,
+      0,
+      6,
+      20,
+      1,
+    ]);
     expect(
-        Builder.buildFromObject(-2.50).asUint8List(), [0, 0, 32, 192, 14, 4]);
+      Builder.buildFromObject([1, 3.3, 'max', true, null, false]).asUint8List(),
-    expect(Builder.buildFromObject('Maxim').asUint8List(),
+      [
-        [5, 77, 97, 120, 105, 109, 0, 6, 20, 1]);
+        3,
+        109,
+        97,
+        120,
+        0,
+        0,
+        0,
+        0,
+        6,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        102,
+        102,
+        102,
+        102,
+        102,
+        102,
+        10,
+        64,
+        31,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        1,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        0,
+        4,
+        15,
+        20,
+        104,
+        0,
+        104,
+        54,
+        43,
+        1,
+      ],
+    );
     expect(
-        Builder.buildFromObject([1, 3.3, 'max', true, null, false])
+      Builder.buildFromObject([
-            .asUint8List(),
+        {'something': 12},
-        [
+        {'something': 45},
-          3,
+      ]).asUint8List(),
-          109,
+      [
-          97,
+        115,
-          120,
+        111,
-          0,
+        109,
-          0,
+        101,
-          0,
+        116,
-          0,
+        104,
-          6,
+        105,
-          0,
+        110,
-          0,
+        103,
-          0,
+        0,
-          0,
+        1,
-          0,
+        11,
-          0,
+        1,
-          0,
+        1,
-          1,
+        1,
-          0,
+        12,
-          0,
+        4,
-          0,
+        6,
-          0,
+        1,
-          0,
+        1,
-          0,
+        45,
-          0,
+        4,
-          102,
+        2,
-          102,
+        8,
-          102,
+        4,
-          102,
+        36,
-          102,
+        36,
-          102,
+        4,
-          10,
+        40,
-          64,
+        1,
-          31,
+      ],
-          0,
+    );
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          1,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          0,
-          4,
-          15,
-          20,
-          104,
-          0,
-          104,
-          54,
-          43,
-          1
-        ]);
-    expect(
-        Builder.buildFromObject([
-          {'something': 12},
-          {'something': 45}
-        ]).asUint8List(),
-        [
-          115,
-          111,
-          109,
-          101,
-          116,
-          104,
-          105,
-          110,
-          103,
-          0,
-          1,
-          11,
-          1,
-          1,
-          1,
-          12,
-          4,
-          6,
-          1,
-          1,
-          45,
-          4,
-          2,
-          8,
-          4,
-          36,
-          36,
-          4,
-          40,
-          1
-        ]);
   });
 
   test('add double indirectly', () {
@@ -543,7 +608,7 @@ void main() {
       35,
       8,
       40,
-      1
+      1,
     ]);
   });
 
@@ -580,7 +645,7 @@ void main() {
       27,
       8,
       40,
-      1
+      1,
     ]);
   });
 

dart/test/flex_types_test.dart

@@ -48,116 +48,210 @@ void main() {
     expect(ValueTypeUtils.isFixedTypedVector(ValueType.VectorInt), isFalse);
   });
   test('to typed vector', () {
-    expect(ValueTypeUtils.toTypedVector(ValueType.Int, 0),
+    expect(
-        equals(ValueType.VectorInt));
+      ValueTypeUtils.toTypedVector(ValueType.Int, 0),
-    expect(ValueTypeUtils.toTypedVector(ValueType.UInt, 0),
+      equals(ValueType.VectorInt),
-        equals(ValueType.VectorUInt));
+    );
-    expect(ValueTypeUtils.toTypedVector(ValueType.Bool, 0),
+    expect(
-        equals(ValueType.VectorBool));
+      ValueTypeUtils.toTypedVector(ValueType.UInt, 0),
-    expect(ValueTypeUtils.toTypedVector(ValueType.Float, 0),
+      equals(ValueType.VectorUInt),
-        equals(ValueType.VectorFloat));
+    );
-    expect(ValueTypeUtils.toTypedVector(ValueType.Key, 0),
+    expect(
-        equals(ValueType.VectorKey));
+      ValueTypeUtils.toTypedVector(ValueType.Bool, 0),
-    expect(ValueTypeUtils.toTypedVector(ValueType.String, 0),
+      equals(ValueType.VectorBool),
-        equals(ValueType.VectorString));
+    );
+    expect(
+      ValueTypeUtils.toTypedVector(ValueType.Float, 0),
+      equals(ValueType.VectorFloat),
+    );
+    expect(
+      ValueTypeUtils.toTypedVector(ValueType.Key, 0),
+      equals(ValueType.VectorKey),
+    );
+    expect(
+      ValueTypeUtils.toTypedVector(ValueType.String, 0),
+      equals(ValueType.VectorString),
+    );
 
-    expect(ValueTypeUtils.toTypedVector(ValueType.Int, 2),
+    expect(
-        equals(ValueType.VectorInt2));
+      ValueTypeUtils.toTypedVector(ValueType.Int, 2),
-    expect(ValueTypeUtils.toTypedVector(ValueType.UInt, 2),
+      equals(ValueType.VectorInt2),
-        equals(ValueType.VectorUInt2));
+    );
-    expect(ValueTypeUtils.toTypedVector(ValueType.Float, 2),
+    expect(
-        equals(ValueType.VectorFloat2));
+      ValueTypeUtils.toTypedVector(ValueType.UInt, 2),
+      equals(ValueType.VectorUInt2),
+    );
+    expect(
+      ValueTypeUtils.toTypedVector(ValueType.Float, 2),
+      equals(ValueType.VectorFloat2),
+    );
 
-    expect(ValueTypeUtils.toTypedVector(ValueType.Int, 3),
+    expect(
-        equals(ValueType.VectorInt3));
+      ValueTypeUtils.toTypedVector(ValueType.Int, 3),
-    expect(ValueTypeUtils.toTypedVector(ValueType.UInt, 3),
+      equals(ValueType.VectorInt3),
-        equals(ValueType.VectorUInt3));
+    );
-    expect(ValueTypeUtils.toTypedVector(ValueType.Float, 3),
+    expect(
-        equals(ValueType.VectorFloat3));
+      ValueTypeUtils.toTypedVector(ValueType.UInt, 3),
+      equals(ValueType.VectorUInt3),
+    );
+    expect(
+      ValueTypeUtils.toTypedVector(ValueType.Float, 3),
+      equals(ValueType.VectorFloat3),
+    );
 
-    expect(ValueTypeUtils.toTypedVector(ValueType.Int, 4),
+    expect(
-        equals(ValueType.VectorInt4));
+      ValueTypeUtils.toTypedVector(ValueType.Int, 4),
-    expect(ValueTypeUtils.toTypedVector(ValueType.UInt, 4),
+      equals(ValueType.VectorInt4),
-        equals(ValueType.VectorUInt4));
+    );
-    expect(ValueTypeUtils.toTypedVector(ValueType.Float, 4),
+    expect(
-        equals(ValueType.VectorFloat4));
+      ValueTypeUtils.toTypedVector(ValueType.UInt, 4),
+      equals(ValueType.VectorUInt4),
+    );
+    expect(
+      ValueTypeUtils.toTypedVector(ValueType.Float, 4),
+      equals(ValueType.VectorFloat4),
+    );
   });
   test('typed vector element type', () {
-    expect(ValueTypeUtils.typedVectorElementType(ValueType.VectorInt),
+    expect(
-        equals(ValueType.Int));
+      ValueTypeUtils.typedVectorElementType(ValueType.VectorInt),
-    expect(ValueTypeUtils.typedVectorElementType(ValueType.VectorUInt),
+      equals(ValueType.Int),
-        equals(ValueType.UInt));
+    );
-    expect(ValueTypeUtils.typedVectorElementType(ValueType.VectorFloat),
+    expect(
-        equals(ValueType.Float));
+      ValueTypeUtils.typedVectorElementType(ValueType.VectorUInt),
-    expect(ValueTypeUtils.typedVectorElementType(ValueType.VectorString),
+      equals(ValueType.UInt),
-        equals(ValueType.String));
+    );
-    expect(ValueTypeUtils.typedVectorElementType(ValueType.VectorKey),
+    expect(
-        equals(ValueType.Key));
+      ValueTypeUtils.typedVectorElementType(ValueType.VectorFloat),
-    expect(ValueTypeUtils.typedVectorElementType(ValueType.VectorBool),
+      equals(ValueType.Float),
-        equals(ValueType.Bool));
+    );
+    expect(
+      ValueTypeUtils.typedVectorElementType(ValueType.VectorString),
+      equals(ValueType.String),
+    );
+    expect(
+      ValueTypeUtils.typedVectorElementType(ValueType.VectorKey),
+      equals(ValueType.Key),
+    );
+    expect(
+      ValueTypeUtils.typedVectorElementType(ValueType.VectorBool),
+      equals(ValueType.Bool),
+    );
   });
   test('fixed typed vector element type', () {
-    expect(ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorInt2),
+    expect(
-        equals(ValueType.Int));
+      ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorInt2),
-    expect(ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorInt3),
+      equals(ValueType.Int),
-        equals(ValueType.Int));
+    );
-    expect(ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorInt4),
+    expect(
-        equals(ValueType.Int));
+      ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorInt3),
+      equals(ValueType.Int),
+    );
+    expect(
+      ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorInt4),
+      equals(ValueType.Int),
+    );
 
-    expect(ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorUInt2),
+    expect(
-        equals(ValueType.UInt));
+      ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorUInt2),
-    expect(ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorUInt3),
+      equals(ValueType.UInt),
-        equals(ValueType.UInt));
+    );
-    expect(ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorUInt4),
+    expect(
-        equals(ValueType.UInt));
+      ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorUInt3),
+      equals(ValueType.UInt),
+    );
+    expect(
+      ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorUInt4),
+      equals(ValueType.UInt),
+    );
 
-    expect(ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorFloat2),
+    expect(
-        equals(ValueType.Float));
+      ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorFloat2),
-    expect(ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorFloat3),
+      equals(ValueType.Float),
-        equals(ValueType.Float));
+    );
-    expect(ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorFloat4),
+    expect(
-        equals(ValueType.Float));
+      ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorFloat3),
+      equals(ValueType.Float),
+    );
+    expect(
+      ValueTypeUtils.fixedTypedVectorElementType(ValueType.VectorFloat4),
+      equals(ValueType.Float),
+    );
   });
   test('fixed typed vector element size', () {
-    expect(ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorInt2),
+    expect(
-        equals(2));
+      ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorInt2),
-    expect(ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorInt3),
+      equals(2),
-        equals(3));
+    );
-    expect(ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorInt4),
+    expect(
-        equals(4));
+      ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorInt3),
+      equals(3),
+    );
+    expect(
+      ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorInt4),
+      equals(4),
+    );
 
-    expect(ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorUInt2),
+    expect(
-        equals(2));
+      ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorUInt2),
-    expect(ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorUInt3),
+      equals(2),
-        equals(3));
+    );
-    expect(ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorUInt4),
+    expect(
-        equals(4));
+      ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorUInt3),
+      equals(3),
+    );
+    expect(
+      ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorUInt4),
+      equals(4),
+    );
 
-    expect(ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorFloat2),
+    expect(
-        equals(2));
+      ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorFloat2),
-    expect(ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorFloat3),
+      equals(2),
-        equals(3));
+    );
-    expect(ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorFloat4),
+    expect(
-        equals(4));
+      ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorFloat3),
+      equals(3),
+    );
+    expect(
+      ValueTypeUtils.fixedTypedVectorElementSize(ValueType.VectorFloat4),
+      equals(4),
+    );
   });
   test('packed type', () {
     expect(
-        ValueTypeUtils.packedType(ValueType.Null, BitWidth.width8), equals(0));
+      ValueTypeUtils.packedType(ValueType.Null, BitWidth.width8),
+      equals(0),
+    );
     expect(
-        ValueTypeUtils.packedType(ValueType.Null, BitWidth.width16), equals(1));
+      ValueTypeUtils.packedType(ValueType.Null, BitWidth.width16),
+      equals(1),
+    );
     expect(
-        ValueTypeUtils.packedType(ValueType.Null, BitWidth.width32), equals(2));
+      ValueTypeUtils.packedType(ValueType.Null, BitWidth.width32),
+      equals(2),
+    );
     expect(
-        ValueTypeUtils.packedType(ValueType.Null, BitWidth.width64), equals(3));
+      ValueTypeUtils.packedType(ValueType.Null, BitWidth.width64),
+      equals(3),
+    );
 
     expect(
-        ValueTypeUtils.packedType(ValueType.Int, BitWidth.width8), equals(4));
+      ValueTypeUtils.packedType(ValueType.Int, BitWidth.width8),
+      equals(4),
+    );
     expect(
-        ValueTypeUtils.packedType(ValueType.Int, BitWidth.width16), equals(5));
+      ValueTypeUtils.packedType(ValueType.Int, BitWidth.width16),
+      equals(5),
+    );
     expect(
-        ValueTypeUtils.packedType(ValueType.Int, BitWidth.width32), equals(6));
+      ValueTypeUtils.packedType(ValueType.Int, BitWidth.width32),
+      equals(6),
+    );
     expect(
-        ValueTypeUtils.packedType(ValueType.Int, BitWidth.width64), equals(7));
+      ValueTypeUtils.packedType(ValueType.Int, BitWidth.width64),
+      equals(7),
+    );
   });
   test('bit width', () {
     expect(BitWidthUtil.width(0), BitWidth.width8);

dart/test/include_test1_generated.dart

@@ -2,10 +2,11 @@
 // ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
 
 import 'dart:typed_data' show Uint8List;
+
 import 'package:flat_buffers/flat_buffers.dart' as fb;
 
-
+import './include_test2_my_game.other_name_space_generated.dart'
-import './include_test2_my_game.other_name_space_generated.dart' as my_game_other_name_space;
+    as my_game_other_name_space;
 
 class TableA {
   TableA._(this._bc, this._bcOffset);
@@ -19,15 +20,17 @@ class TableA {
   final fb.BufferContext _bc;
   final int _bcOffset;
 
-  my_game_other_name_space.TableB? get b => my_game_other_name_space.TableB.reader.vTableGetNullable(_bc, _bcOffset, 4);
+  my_game_other_name_space.TableB? get b => my_game_other_name_space
+      .TableB
+      .reader
+      .vTableGetNullable(_bc, _bcOffset, 4);
 
   @override
   String toString() {
     return 'TableA{b: ${b}}';
   }
 
-  TableAT unpack() => TableAT(
+  TableAT unpack() => TableAT(b: b?.unpack());
-      b: b?.unpack());
 
   static int pack(fb.Builder fbBuilder, TableAT? object) {
     if (object == null) return 0;
@@ -38,8 +41,7 @@ class TableA {
 class TableAT implements fb.Packable {
   my_game_other_name_space.TableBT? b;
 
-  TableAT({
+  TableAT({this.b});
-      this.b});
 
   @override
   int pack(fb.Builder fbBuilder) {
@@ -59,8 +61,7 @@ class _TableAReader extends fb.TableReader<TableA> {
   const _TableAReader();
 
   @override
-  TableA createObject(fb.BufferContext bc, int offset) => 
+  TableA createObject(fb.BufferContext bc, int offset) => TableA._(bc, offset);
-    TableA._(bc, offset);
 }
 
 class TableABuilder {
@@ -85,10 +86,8 @@ class TableABuilder {
 class TableAObjectBuilder extends fb.ObjectBuilder {
   final my_game_other_name_space.TableBObjectBuilder? _b;
 
-  TableAObjectBuilder({
+  TableAObjectBuilder({my_game_other_name_space.TableBObjectBuilder? b})
-    my_game_other_name_space.TableBObjectBuilder? b,
+    : _b = b;
-  })
-      : _b = b;
 
   /// Finish building, and store into the [fbBuilder].
   @override

dart/test/include_test2_my_game.other_name_space_generated.dart

@@ -4,8 +4,8 @@
 library my_game.other_name_space;
 
 import 'dart:typed_data' show Uint8List;
-import 'package:flat_buffers/flat_buffers.dart' as fb;
 
+import 'package:flat_buffers/flat_buffers.dart' as fb;
 
 import './include_test1_generated.dart';
 
@@ -17,8 +17,10 @@ enum FromInclude {
 
   factory FromInclude.fromValue(int value) {
     switch (value) {
-      case 0: return FromInclude.IncludeVal;
+      case 0:
-      default: throw StateError('Invalid value $value for bit flag enum');
+        return FromInclude.IncludeVal;
+      default:
+        throw StateError('Invalid value $value for bit flag enum');
     }
   }
 
@@ -56,8 +58,7 @@ class Unused {
     return 'Unused{a: ${a}}';
   }
 
-  UnusedT unpack() => UnusedT(
+  UnusedT unpack() => UnusedT(a: a);
-      a: a);
 
   static int pack(fb.Builder fbBuilder, UnusedT? object) {
     if (object == null) return 0;
@@ -68,8 +69,7 @@ class Unused {
 class UnusedT implements fb.Packable {
   int a;
 
-  UnusedT({
+  UnusedT({required this.a});
-      required this.a});
 
   @override
   int pack(fb.Builder fbBuilder) {
@@ -90,8 +90,7 @@ class _UnusedReader extends fb.StructReader<Unused> {
   int get size => 4;
 
   @override
-  Unused createObject(fb.BufferContext bc, int offset) => 
+  Unused createObject(fb.BufferContext bc, int offset) => Unused._(bc, offset);
-    Unused._(bc, offset);
 }
 
 class UnusedBuilder {
@@ -103,16 +102,12 @@ class UnusedBuilder {
     fbBuilder.putInt32(a);
     return fbBuilder.offset;
   }
-
 }
 
 class UnusedObjectBuilder extends fb.ObjectBuilder {
   final int _a;
 
-  UnusedObjectBuilder({
+  UnusedObjectBuilder({required int a}) : _a = a;
-    required int a,
-  })
-      : _a = a;
 
   /// Finish building, and store into the [fbBuilder].
   @override
@@ -129,6 +124,7 @@ class UnusedObjectBuilder extends fb.ObjectBuilder {
     return fbBuilder.buffer;
   }
 }
+
 class TableB {
   TableB._(this._bc, this._bcOffset);
   factory TableB(List<int> bytes) {
@@ -148,8 +144,7 @@ class TableB {
     return 'TableB{a: ${a}}';
   }
 
-  TableBT unpack() => TableBT(
+  TableBT unpack() => TableBT(a: a?.unpack());
-      a: a?.unpack());
 
   static int pack(fb.Builder fbBuilder, TableBT? object) {
     if (object == null) return 0;
@@ -160,8 +155,7 @@ class TableB {
 class TableBT implements fb.Packable {
   TableAT? a;
 
-  TableBT({
+  TableBT({this.a});
-      this.a});
 
   @override
   int pack(fb.Builder fbBuilder) {
@@ -181,8 +175,7 @@ class _TableBReader extends fb.TableReader<TableB> {
   const _TableBReader();
 
   @override
-  TableB createObject(fb.BufferContext bc, int offset) => 
+  TableB createObject(fb.BufferContext bc, int offset) => TableB._(bc, offset);
-    TableB._(bc, offset);
 }
 
 class TableBBuilder {
@@ -207,10 +200,7 @@ class TableBBuilder {
 class TableBObjectBuilder extends fb.ObjectBuilder {
   final TableAObjectBuilder? _a;
 
-  TableBObjectBuilder({
+  TableBObjectBuilder({TableAObjectBuilder? a}) : _a = a;
-    TableAObjectBuilder? a,
-  })
-      : _a = a;
 
   /// Finish building, and store into the [fbBuilder].
   @override

dart/test/keyword_test_keyword_test_generated.dart

@@ -7,6 +7,7 @@ import 'dart:typed_data' show Uint8List;
 import 'package:flat_buffers/flat_buffers.dart' as fb;
 
 
+
 enum Abc {
   $void(0),
   where(1),
@@ -276,7 +277,7 @@ class Table2 {
 
   Table2T unpack() => Table2T(
       typeType: typeType,
-      type: type);
+      type: type?.unpack());
 
   static int pack(fb.Builder fbBuilder, Table2T? object) {
     if (object == null) return 0;

dart/test/monster_test_my_game.example2_generated.dart

@@ -4,12 +4,12 @@
 library my_game.example2;
 
 import 'dart:typed_data' show Uint8List;
+
 import 'package:flat_buffers/flat_buffers.dart' as fb;
 
-import './monster_test_my_game_generated.dart' as my_game;
-import './monster_test_my_game.example_generated.dart' as my_game_example;
-
 import './include_test1_generated.dart';
+import './monster_test_my_game.example_generated.dart' as my_game_example;
+import './monster_test_my_game_generated.dart' as my_game;
 
 class Monster {
   Monster._(this._bc, this._bcOffset);
@@ -23,7 +23,6 @@ class Monster {
   final fb.BufferContext _bc;
   final int _bcOffset;
 
-
   @override
   String toString() {
     return 'Monster{}';
@@ -54,12 +53,11 @@ class _MonsterReader extends fb.TableReader<Monster> {
   const _MonsterReader();
 
   @override
-  Monster createObject(fb.BufferContext bc, int offset) => 
+  Monster createObject(fb.BufferContext bc, int offset) =>
-    Monster._(bc, offset);
+      Monster._(bc, offset);
 }
 
 class MonsterObjectBuilder extends fb.ObjectBuilder {
-
   MonsterObjectBuilder();
 
   /// Finish building, and store into the [fbBuilder].

dart/test/monster_test_my_game_generated.dart

@@ -4,12 +4,12 @@
 library my_game;
 
 import 'dart:typed_data' show Uint8List;
+
 import 'package:flat_buffers/flat_buffers.dart' as fb;
 
-import './monster_test_my_game.example_generated.dart' as my_game_example;
-import './monster_test_my_game.example2_generated.dart' as my_game_example2;
-
 import './include_test1_generated.dart';
+import './monster_test_my_game.example2_generated.dart' as my_game_example2;
+import './monster_test_my_game.example_generated.dart' as my_game_example;
 
 class InParentNamespace {
   InParentNamespace._(this._bc, this._bcOffset);
@@ -23,7 +23,6 @@ class InParentNamespace {
   final fb.BufferContext _bc;
   final int _bcOffset;
 
-
   @override
   String toString() {
     return 'InParentNamespace{}';
@@ -54,12 +53,11 @@ class _InParentNamespaceReader extends fb.TableReader<InParentNamespace> {
   const _InParentNamespaceReader();
 
   @override
-  InParentNamespace createObject(fb.BufferContext bc, int offset) => 
+  InParentNamespace createObject(fb.BufferContext bc, int offset) =>
-    InParentNamespace._(bc, offset);
+      InParentNamespace._(bc, offset);
 }
 
 class InParentNamespaceObjectBuilder extends fb.ObjectBuilder {
-
   InParentNamespaceObjectBuilder();
 
   /// Finish building, and store into the [fbBuilder].

docs/README.md

@@ -6,7 +6,7 @@ https://flatbuffers.dev.
 
 ## Local Building
 
-The documentation can be built and served locally during development, see [https//flatbuffers.dev/contributing/#local-development] for full details.
+The documentation can be built and served locally during development, see <https://flatbuffers.dev/contributing/#local-development> for full details.
 
 __tl;dr__
 
@@ -21,4 +21,4 @@ Build and Serve:
 
 ```
 mkdocs serve -f docs/mkdocs.yml
-```
+```

docs/mkdocs.yml

@@ -139,7 +139,7 @@ nav:
     - Dart: "languages/dart.md"
     - Go: "languages/go.md"
     - Java: "languages/java.md"
-    - JavasScript: "languages/javascript.md"
+    - JavaScript: "languages/javascript.md"
     - Kotlin: "languages/kotlin.md"
     - Lobster: "languages/lobster.md"
     - Lua: "languages/lua.md"

docs/source/annotation.md

@@ -55,8 +55,8 @@ The columns are as follows:
     The prefix `+` is added to make searching for the offset (compared to some
     random value) a bit easier.
 
-2. The raw binary data, expressed in hexadecimal format. 
+2. The raw binary data, expressed in hexadecimal format.
-   
+
     This is in the little endian format the buffer uses internally and what you
     would see with a normal binary text viewer.
 
@@ -108,7 +108,7 @@ regions in the flatbuffer itself.
 
 ### Binary Regions
 
-Binary regions are contiguous bytes regions that are grouped together to form 
+Binary regions are contiguous bytes regions that are grouped together to form
 some sort of value, e.g. a `scalar` or an array of scalars. A binary region may
 be split up over multiple text lines, if the size of the region is large.
 
@@ -122,7 +122,7 @@ vtable (AnnotatedBinary.Bar):
 ```
 
 The first column (`+0x00A0`) is the offset to this region from the beginning of
-the buffer. 
+the buffer.
 
 The second column are the raw bytes (hexadecimal) that make up this region.
 These are expressed in the little-endian format that flatbuffers uses for the
@@ -135,7 +135,7 @@ The fourth column shows the raw bytes as a compacted, big-endian value. The raw
 bytes are duplicated in this fashion since it is more intuitive to read the data
 in the big-endian format (e.g., `0x0008`). This value is followed by the decimal
 representation of the value (e.g., `(8)`). For strings, the raw string value is
-shown instead. 
+shown instead.
 
 The fifth column is a textual comment on what the value is. As much metadata as
 known is provided.
@@ -146,4 +146,4 @@ If the type in the 3rd column is of an absolute offset (`SOffet32` or
 `Offset32`), the fourth column also shows an `Loc: +0x025A` value which shows
 where in the binary this region is pointing to. These values are absolute from
 the beginning of the file, their calculation from the raw value in the 4th
-column depends on the context.
+column depends on the context.

docs/source/building.md

@@ -89,6 +89,17 @@ CC=clang PATH=$PATH:$(pwd)/swift-${SWIFT_VERSION}-RELEASE-debian12/usr/bin bazel
 
 If you are unsure which versions to use, check our CI config at `.bazelci/presubmit.yml`.
 
+## Building with Conan
+
+You can download and install flatbuffers using the [Conan](https://conan.io/) dependency manager:
+
+    conan install --requires="flatbuffers/[*]" --build=missing
+
+The flatbuffers package in Conan Center is maintained by
+[ConanCenterIndex](https://github.com/conan-io/conan-center-index) community.
+If the version is out of date or the package does not work,
+please create an issue or pull request on the [Conan Center Index repository](https://github.com/conan-io/conan-center-index).
+
 ## Building with VCPKG
 
 You can download and install flatbuffers using the [vcpkg](https://github.com/Microsoft/vcpkg/) dependency manager:
@@ -152,11 +163,11 @@ add_subdirectory(${FLATBUFFERS_SRC_DIR}
 # The flatbuffers target carry header search path automatically if CMake > 2.8.11.
 target_link_libraries(own_project_target PRIVATE flatbuffers)
 ```
-When build your project the `flatbuffers` library will be compiled and linked 
+When build your project the `flatbuffers` library will be compiled and linked
 to a target as part of your project.
 
 #### Override default depth limit of nested objects
-To override [the depth limit of recursion](languages/cpp.md), 
+To override [the depth limit of recursion](languages/cpp.md),
 add this directive:
 ```cmake
 set(FLATBUFFERS_MAX_PARSING_DEPTH 16)
@@ -174,4 +185,4 @@ We generate [SLSA3 signatures](http://slsa.dev) using the OpenSSF's [slsa-framew
 ```shell
 $ slsa-verifier -artifact-path <downloaded.zip> -provenance attestation.intoto.jsonl -source github.com/google/flatbuffers -tag <version>
   PASSED: Verified SLSA provenance
-```
+```

docs/source/contributing.md

@@ -15,17 +15,17 @@ repository.
 Before we can use your contributions, you __must__ sign one of the following license agreements. The agreements are self-served at the following links.
 
 Our code review process will automatically check if you have signed the CLA, so
-don't fret. Though it may be prudent to check before spending a lot of time on 
+don't fret. Though it may be prudent to check before spending a lot of time on
 contribution.
 
-### Individual Contributions 
+### Individual Contributions
 
 For individuals, the [Google Individual
 Contributor License Agreement
 (CLA)](https://cla.developers.google.com/about/google-individual?csw=1) which is
 self served at the link. The CLA is required since you own the copyright to your
 changes, even after your contribution becomes part of our codebase, so we need
-your permission to use and distribute your code. 
+your permission to use and distribute your code.
 
 ### Corporate Contributions
 
@@ -67,7 +67,7 @@ pip install mkdocs-material
 pip install mkdocs-redirects
 ```
 
-Then, in the `root` directory of flatbuffers, run 
+Then, in the `root` directory of flatbuffers, run
 
 ```
 mkdocs serve -f docs/mkdocs.yml
@@ -77,4 +77,4 @@ This will continually watch the repo for changes to the documentation and serve
 the rendered pages locally.
 
 Submit your documentation changes with your code changes and they will
-automatically get published when your code is submitted.
+automatically get published when your code is submitted.

docs/source/evolution.md

@@ -261,7 +261,7 @@ a [option](flatc.md#additional-options) to do just that:
 
 ```sh
 --conform FILE
-``` 
+```
 
 Where `FILE` is the base schema the rest of the input schemas must evolve from.
 It returns `0` if they are properly evolved, otherwise returns a non-zero value

docs/source/flatc.md

@@ -1,13 +1,13 @@
 # FlatBuffers Compiler (`flatc`)
 
 The main compiler for FlatBuffers is called `flatc` and is used to convert
-schema definitions into generated code files for a variety of languages. 
+schema definitions into generated code files for a variety of languages.
 
 After [building](building.md) `flatc`, it is used as follows:
 
 ```sh
-flatc [ GENERATOR_OPTIONS ] [ -o PATH ] [- I PATH ] 
+flatc [ GENERATOR_OPTIONS ] [ -o PATH ] [- I PATH ]
-  FILES... 
+  FILES...
   [ -- BINARY_FILES... ]
 ```
 
@@ -65,25 +65,26 @@ list of `FILES...`.
 === "To Binary"
 
     To serialize the JSON data in `mydata.json` using the schema `myschema.fbs`:
-   
+
     ```sh
     flatc --binary myschema.fbs mydata.json
     ```
 
-    This will generate a `mydata_wire.bin` file containing the serialized 
+    This will generate a `mydata_wire.bin` file containing the serialized
     flatbuffer data.
 
 === "To JSON"
 
-    To convert the serialized binary flatbuffer `mydata.bin` using the schema 
+    To convert the serialized binary flatbuffer `mydata.bin` using the schema
     `myschema.fbs` to JSON:
 
     ```sh
-    flatc --json myschema.fbs mydata.bin
+    flatc --json myschema.fbs -- mydata.bin
     ```
 
-    This will generate a `mydata.json` file.
+    This will generate a `mydata.json` file. If there is no
-
+    [`file_identifier`](schema.md/#file-identification-and-extension) defined
+    for this schema, you will need to use the `--raw-binary` option.
 
 ### Additional options
 
@@ -131,7 +132,7 @@ list of `FILES...`.
 -   `--gen-mutable` : Generate additional non-const accessors for mutating
     FlatBuffers in-place.
 
--   `--gen-onefile` : Generate single output file for C#, Go, and Python.
+-   `--gen-onefile` : Generate a single output file for C#, Go, Java, Kotlin and Python.
 
 -   `--gen-name-strings` : Generate type name functions for C++.
 
@@ -259,6 +260,11 @@ list of `FILES...`.
 
 -   `--python-typing` : Generate Python type annotations
 
+-   `--python-decode-obj-api-strings` : Decode bytes automaticaly with utf-8
+
+-   `--file-names-only` : Prints out files which would be generated by this command, one per
+    line, to `stdout`. No actual files are generated. This is useful for various CI checks.
+
 Additional gRPC options:
 
 -   `--grpc-filename-suffix`: `[C++]` An optional suffix for the generated

docs/source/index.md

@@ -21,15 +21,15 @@ It is available as Open Source on
 - :material-memory:{ .lg .middle } **Memory Efficiency and Speed**
 
     ---
-    The only memory needed to access your data is that of the buffer. No heap is
+    The only memory needed to access your data is that of the buffer.
-  required.
+  No heap is required.
 
 - :material-compare-horizontal:{ .lg .middle } **Backwards and Forwards
   Compatibility**
 
     ---
-    The only memory needed to access your data is that of the buffer. No heap is
+    FlatBuffers enables the schema to evolve over time while still maintaining
-  required.
+  forwards and backwards compatibility with old flatbuffers.
 
 - :material-scale-off:{ .lg .middle } **Small Footprint**
 

docs/source/intermediate_representation.md

@@ -6,7 +6,7 @@ errors and stores the resulting data in this IR, outputting `.bfbs` files.
 Since this IR is a Flatbuffer, you can load and use it at runtime for runtime
 reflection purposes.
 
-There are some quirks: 
+There are some quirks:
 - Tables and Structs are serialized as `Object`s.
 - Unions and Enums are serialized as `Enum`s.
 - It is the responsibility of the code generator to check the `advanced_features`
@@ -18,7 +18,7 @@ There are some quirks:
   inferred to be the directory containing the first provided schema file.
 
 
-## Invocation 
+## Invocation
 You can invoke it like so
 ```{.sh}
 flatc -b --schema ${your_fbs_files}

docs/source/languages/c_sharp.md

@@ -23,7 +23,7 @@ FlatBuffers).
 
 ## Building the FlatBuffers C# library
 
-The `FlatBuffers.csproj` project contains multitargeting for .NET Standard 2.1,
+The `FlatBuffers.csproj` project contains multitargeting for .NET Standard 2.0, 2.1,
 .NET 6 and .NET 8.
 
 You can build for a specific framework target when using the cross-platform

docs/source/languages/cpp.md

@@ -57,7 +57,7 @@ a `char *` array, which you pass to `GetMonster()`.
 
 ```cpp
     #include "flatbuffers/flatbuffers.h"
-    #include "monster_test_generate.h"
+    #include "monster_test_generated.h"
     #include <iostream> // C++ header file for printing
     #include <fstream> // C++ header file for file access
 
@@ -242,6 +242,41 @@ provide the following functions to aide in the serialization process:
     }
 ```
 
+-   `native_type("type")` (on a table): Tables can also be represented with
+native types. For example, the following schema:
+
+```cpp
+    table Matrix (native_type: "NativeMatrix") {
+      rows: int32;
+      columns: int32;
+      values: [float];
+    }
+```
+
+Would be represented by a user-defined C++ class:
+
+```cpp
+    class NativeMatrix { ... }
+```
+
+In this case, the following function declarations are generated by the compiler.
+The user must provide and link the matching function definitions:
+
+```cpp
+    struct Matrix FLATBUFFERS_FINAL_CLASS : private ::flatbuffers::Table {
+      // ...
+
+      static ::flatbuffers::Offset<Matrix> Pack(
+          ::flatbuffers::FlatBufferBuilder& _fbb,
+          const NativeMatrix* _o,
+          const ::flatbuffers::rehasher_function_t* _rehasher = nullptr);
+
+      void UnPackTo(
+          NativeMatrix* _o,
+          const ::flatbuffers::resolver_function_t* _resolver = nullptr) const;
+    }
+```
+
 Finally, the following top-level attributes:
 
 -   `native_include("path")` (at file level): Because the `native_type` attribute
@@ -419,7 +454,8 @@ Each root type will have a verification function generated for it,
 e.g. for `Monster`, you can call:
 
 ```cpp
-	bool ok = VerifyMonsterBuffer(Verifier(buf, len));
+	Verifier verifier(buf, len);
+	bool ok = VerifyMonsterBuffer(verifier);
 ```
 
 if `ok` is true, the buffer is safe to read.

docs/source/languages/dart.md

@@ -93,7 +93,7 @@ significant changes have been made.
    goal of this implementation.  Support for 16 bit integers was also added.
 5. The code generation in this offers an "ObjectBuilder", which generates code
    very similar to the SDK classes that consume FlatBuffers, as well as Builder
-   classes, which produces code which more closely resembles the builders in 
+   classes, which produces code which more closely resembles the builders in
    other languages. The ObjectBuilder classes are easier to use, at the cost of
    additional references allocated.
 

docs/source/languages/javascript.md

@@ -16,7 +16,7 @@ documentation to build `flatc` and should be familiar with
 
 ## FlatBuffers JavaScript library code location
 
-The generated code for the FlatBuffers JavaScript library can be found at 
+The generated code for the FlatBuffers JavaScript library can be found at
 https://www.npmjs.com/package/flatbuffers. To use it from sources:
 
 1. Run `npm run compile` from the main folder to generate JS files from TS.
@@ -36,7 +36,7 @@ transpile your sources to desired JS flavor. The minimal steps to get up and
 running with JS are:
 
 1. Generate TS files from `*.fbs` by using the `--ts` option.
-1. Transpile resulting TS files to desired JS flavor using `tsc` (see 
+1. Transpile resulting TS files to desired JS flavor using `tsc` (see
    https://www.typescriptlang.org/download for installation instructions).
 
 ~~~{.js}

docs/source/languages/kotlin.md

@@ -81,4 +81,4 @@ Kotlin generated code was designed to be as close as possible to the java counte
 The most obvious ones are:
 
 * Fields as accessed as Kotlin [properties](https://kotlinlang.org/docs/reference/properties.html)
-* Static methods are accessed in [companion object](https://kotlinlang.org/docs/reference/classes.html#companion-objects)
+* Static methods are accessed in [companion object](https://kotlinlang.org/docs/reference/classes.html#companion-objects)

docs/source/languages/lua.md

@@ -50,7 +50,7 @@ file into a `string`, which you pass to the `GetRootAsMonster` function:
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.lua}
     -- require the library
     local flatbuffers = require("flatbuffers")
-    
+
     -- require the generated code
     local monster = require("MyGame.Sample.Monster")
 

docs/source/languages/php.md

@@ -48,7 +48,7 @@ function). Then you can read a FlatBuffer binary file, which you
 pass the contents of to the `GetRootAsMonster` function:
 
 ~~~{.php}
-  // It is recommended that your use PSR autoload when using FlatBuffers in PHP.
+  // It is recommended that you use PSR autoload when using FlatBuffers in PHP.
   // Here is an example:
   function __autoload($class_name) {
     // The last segment of the class name matches the file name.
@@ -69,7 +69,7 @@ pass the contents of to the `GetRootAsMonster` function:
   // Read the contents of the FlatBuffer binary file.
   $filename = "monster.dat";
   $handle = fopen($filename, "rb");
-  $contents = $fread($handle, filesize($filename));
+  $contents = fread($handle, filesize($filename));
   fclose($handle);
 
   // Pass the contents to `GetRootAsMonster`.

docs/source/languages/rust.md

@@ -97,6 +97,61 @@ convenient accessors for all fields, e.g. `hp()`, `mana()`, etc:
 
 *Note: That we never stored a `mana` value, so it will return the default.*
 
+## Fallible API and Custom Allocators
+
+Every `FlatBufferBuilder` method that may allocate has a `try_*` counterpart
+(e.g. `try_create_string`, `try_push`, `try_finish`) that returns
+`Result<T, A::Error>` instead of panicking. This is useful when allocation
+failures must be handled gracefully: for example in `no_std` environments or
+with fixed-capacity buffers.
+
+The existing panicking methods are unchanged and remain the simplest option
+when using the default allocator.
+
+#### Custom allocators
+
+Implement the `Allocator` trait and pass it to `FlatBufferBuilder::new_in()`:
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.rs}
+    use flatbuffers::{Allocator, FlatBufferBuilder};
+
+    struct MyAllocator { /* ... */ }
+
+    unsafe impl Allocator for MyAllocator {
+        type Error = MyError;
+        fn grow_downwards(&mut self) -> Result<(), Self::Error> { /* ... */ }
+        fn len(&self) -> usize { /* ... */ }
+    }
+
+    let alloc = MyAllocator::new(/* ... */);
+    let mut builder = FlatBufferBuilder::new_in(alloc);
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The built-in `DefaultAllocator` uses `Vec<u8>` and sets `Error = Infallible`,
+so the `try_*` methods on a default builder can never fail.
+
+#### Example: building a buffer with error propagation
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.rs}
+    fn build<A: flatbuffers::Allocator>(
+        builder: &mut FlatBufferBuilder<A>,
+    ) -> Result<(), A::Error> {
+        let name = builder.try_create_string("Orc")?;
+        let inventory = builder.try_create_vector(&[0u8, 1, 2, 3, 4])?;
+
+        let table_start = builder.start_table();
+        builder.try_push_slot_always(Monster::VT_NAME, name)?;
+        builder.try_push_slot_always(Monster::VT_INVENTORY, inventory)?;
+        builder.try_push_slot(Monster::VT_HP, 80i16, 100)?;
+        let root = builder.try_end_table(table_start)?;
+
+        builder.try_finish(root, None)?;
+        Ok(())
+    }
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+See the `FlatBufferBuilder` rustdoc for the full list of `try_*` methods.
+
 ## Direct memory access
 
 As you can see from the above examples, all elements in a buffer are
@@ -177,6 +232,75 @@ functions require a mutable (aka exclusive) reference which can only be created
 when no other references to the `FlatBufferBuilder` exist, and may not be copied
 within the same thread, let alone to a second thread.
 
+## Reflection (& Resizing)
+
+There is experimental support for reflection in FlatBuffers, allowing you to
+read and write data even if you don't know the exact format of a buffer, and
+even allows you to change sizes of strings in-place.
+
+The way this works is very elegant; there is actually a FlatBuffer schema that
+describes schemas (\!) which you can find in `reflection/reflection.fbs`.
+The compiler, `flatc`, can write out any schemas it has just parsed as a binary
+FlatBuffer, corresponding to this meta-schema.
+
+Loading in one of these binary schemas at runtime allows you to traverse any
+FlatBuffer data that corresponds to it without knowing the exact format. You
+can query what fields are present, and then read/write them after.
+
+For convenient field manipulation, you can use the crate
+`flatbuffers-reflection` which includes both the generated code from the meta
+schema, as well as a lot of helper functions.
+
+And example of usage, for the time being, can be found in
+`tests/rust_reflection_test/src/lib.rs`. Two sets of APIs are provided:
+
+- [Unsafe getters/setters](https://docs.rs/flatbuffers-reflection/latest/flatbuffers_reflection/#functions),
+ which you can use when you are processing trusted data (either from a source you know, or has been verified)
+
+- Safe getters in [SafeBuffer](https://docs.rs/flatbuffers-reflection/latest/flatbuffers_reflection/struct.SafeBuffer.html),
+ which does verification when constructed so you can use it for any data source
+
+## Buffer pre allocation in a latency-sensitive context
+
+In latency-sensitive applications, dynamic memory allocations can introduce unpredictable latency spikes. The `FlatBufferBuilder` internally uses several `Vec`s that may reallocate during serialization:
+
+- The backing buffer for the FlatBuffer data
+- `field_locs` for tracking field locations within tables
+- `written_vtable_revpos` for deduplicating vtables
+- `strings_pool` for shared string interning
+
+To avoid allocations during serialization, you can preallocate all internal vectors upfront using the `with_internal_capacity` constructor:
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.rs}
+    // Preallocate: 1KB buffer, 8 field locations, 16 vtables, 32 shared strings
+    let mut builder = FlatBufferBuilder::with_internal_capacity(1024, 8, 16, 32);
+
+    // All subsequent operations will not allocate (if capacities are sufficient)
+    let name = builder.create_shared_string("MyMonster");
+    // ... build your FlatBuffer ...
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+There are three variants available:
+
+- `with_internal_capacity(size, field_locs, vtables, strings)` - Creates a new builder with all capacities preallocated
+- `from_vec_with_internal_capacity(buffer, field_locs, vtables, strings)` - Reuses an existing `Vec<u8>` as the backing buffer
+- `new_in_with_internal_capacity(allocator, field_locs, vtables, strings)` - Uses a custom `Allocator` with preallocated internal vecs
+
+When combined with `reset()`, you can reuse the same builder across multiple serializations without any allocations after the initial setup:
+
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.rs}
+    let mut builder = FlatBufferBuilder::with_internal_capacity(1024, 8, 16, 32);
+
+    loop {
+        // Build a FlatBuffer (allocation-free if capacities are sufficient)
+        let data = build_message(&mut builder);
+        send(data);
+
+        // Reset for reuse - clears state but retains allocated capacity
+        builder.reset();
+    }
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
 ## Useful tools created by others
 
 * [flatc-rust](https://github.com/frol/flatc-rust) - FlatBuffers compiler

docs/source/languages/swift.md

@@ -57,7 +57,7 @@ a data object from the server, which you can pass into the `GetRootAsMonster` fu
     let url = URL(fileURLWithPath: path, isDirectory: true).appendingPathComponent("monsterdata_test").appendingPathExtension("mon")
     guard let data = try? Data(contentsOf: url) else { return }
 
-    let monster = Monster.getRootAsMonster(bb: ByteBuffer(data: data))
+    let monster: Monster = try! getCheckedRoot(byteBuffer: &byteBuffer)
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Now you can access values like this:
@@ -81,7 +81,7 @@ In some cases it's necessary to modify values in an existing FlatBuffer in place
       fatalError("couldn't mutate")
     }
     // mutate a struct field using flatbuffers struct
-    // DONT use monster.pos to mutate since swift copy on write 
+    // DONT use monster.pos to mutate since swift copy on write
     // will not mutate the value in the buffer
     let vec = monster.mutablePos.mutate(z: 4)
 

docs/source/quick_start.md

@@ -30,7 +30,7 @@ See the [Tutorial](tutorial.md) for a more in depth guide.
     code:
 
     ```sh
-    ./flatc --cpp --rust mosnter.fbs
+    ./flatc --cpp --rust monster.fbs
     ```
 
     Which generates `monster_generated.h` and `monster_generated.rs` files.
@@ -44,11 +44,11 @@ See the [Tutorial](tutorial.md) for a more in depth guide.
     #include "flatbuffers.h"
     #include "monster_generated.h"
 
-    int main() { 
+    int main() {
       // Used to build the flatbuffer
       FlatBufferBuilder builder;
 
-      // Auto-generated function emitted from `flatc` and the input 
+      // Auto-generated function emitted from `flatc` and the input
       // `monster.fbs` schema.
       auto monster = CreateMonsterDirect(builder, "Abominable Snowman", 100);
 
@@ -60,8 +60,8 @@ See the [Tutorial](tutorial.md) for a more in depth guide.
     See complete [C++ Example](https://github.com/google/flatbuffers/blob/master/samples/sample_binary.cpp#L24-L56).
 
 5.  **Transmit/Store the serialized FlatBuffer**
-  
+
-    Use your serialized buffer however you want. Send it to someone, save if for
+    Use your serialized buffer however you want. Send it to someone, save it for
     later, etc...
 
     ```c++ title="my_monster_factory.cc" linenums="13"
@@ -73,10 +73,10 @@ See the [Tutorial](tutorial.md) for a more in depth guide.
 
     Use the generated accessors to read the data from the serialized buffer.
 
-    It doesn't need to be the same language, or even schema version (see 
+    It doesn't need to be the same language, or even schema version (see
     [Evolving](evolution.md)), FlatBuffers ensures the data is readable across
-    languages and schema versions. 
+    languages and schema versions.
-    
+
     ```c++ title="my_monster_factory.cc" linenums="15"
     // Get a view of the root monster from the flatbuffer.
     const Monster snowman = GetMonster(flatbuffer);
@@ -84,7 +84,7 @@ See the [Tutorial](tutorial.md) for a more in depth guide.
     // Access the monster's fields directly.
     ASSERT_EQ(snowman->name(), "Abominable Snowman");
     ASSERT_EQ(snowman->health(), 100);
-    ```    
+    ```
-    
+
     See [`Rust` examples](https://github.com/google/flatbuffers/blob/master/samples/sample_binary.rs#L92-L106)
     for reading the data written by `C++`.

docs/source/schema.md

@@ -427,9 +427,6 @@ Current understood attributes:
   it won't be accessible anymore by newer code. Note that if you deprecate a
   field that was previous required, old code may fail to validate new data (when
   using the optional verifier).
-
-### `required`
-
 - `required` (on a non-scalar table field): this field must always be set. By
   default, fields do not need to be present in the binary. This is desirable, as
   it helps with forwards/backwards compatibility, and flexibility of data

docs/source/support.md

@@ -24,14 +24,14 @@ Codegen for all basic features | Yes    | Yes   | Yes      | Yes   | Yes    | Ye
 JSON parsing                   | Yes    | No    | No       | No    | No     | No    | No  | Yes    | No  | No      | Yes     | No     | No
 Simple mutation                | Yes    | Yes   | Yes      | Yes   | No     | No    | No  | No     | No  | No      | No      | No     | Yes
 Reflection                     | Yes    | No    | No       | No    | No     | No    | No  | Basic  | No  | No      | No      | No     | No
-Buffer verifier                | Yes    | No    | No       | No    | No     | No    | No  | Yes    | No  | No      | No      | No     | No
+Buffer verifier                | Yes    | No    | No       | No    | No     | No    | No  | Yes    | No  | No      | No      | No     | Yes
-Native Object API              | Yes    | No    | Yes      | Yes   | Yes    | Yes   | Yes | No     | No  | Yes     | No      | No     | No
+Native Object API              | Yes    | No    | Yes      | Yes   | Yes    | Yes   | Yes | No     | No  | Yes     | No      | No     | Yes
-Optional Scalars               | Yes    | Yes   | Yes      | No    | No     | Yes   | Yes | Yes    | No  | No      | Yes     | Yes    | Yes
+Optional Scalars               | Yes    | Yes   | Yes      | Yes   | No     | Yes   | Yes | Yes    | No  | No      | Yes     | Yes    | Yes
-Flexbuffers                    | Yes    | Yes   | ?        | ?     | ?      | ?     | ?   | ?      | ?   | ?       | ?       | Yes    | ?
+Flexbuffers                    | Yes    | Yes   | ?        | ?     | ?      | ?     | ?   | ?      | ?   | ?       | ?       | Yes    | Yes
 Testing: basic                 | Yes    | Yes   | Yes      | Yes   | Yes    | Yes   | Yes | Yes    | ?   | Yes     | Yes     | Yes    | Yes
 Testing: fuzz                  | Yes    | No    | No       | Yes   | Yes    | No    | No  | No     | ?   | No      | No      | Yes    | No
 Performance:                   | Superb | Great | Great    | Great | Ok     | ?     | ?   | Superb | ?   | ?       | Great   | Superb | Great
-Platform: Windows              | VS2010 | Yes   | Yes      | ?     | ?      | ?     | Yes | VS2010 | ?   | Yes     | Yes     | Yes    | No
+Platform: Windows              | VS2010 | Yes   | Yes      | ?     | ?      | ?     | Yes | VS2010 | ?   | Yes     | Yes     | Yes    | Yes
 Platform: Linux                | GCC282 | Yes   | ?        | Yes   | Yes    | ?     | Yes | Yes    | ?   | Yes     | Yes     | Yes    | Yes
 Platform: OS X                 | Xcode4 | ?     | ?        | ?     | Yes    | ?     | Yes | Yes    | ?   | Yes     | Yes     | Yes    | Yes
 Platform: Android              | NDK10d | Yes   | ?        | ?     | ?      | ?     | ?   | ?      | ?   | Flutter | Yes     | ?      | No

docs/source/tutorial.md

@@ -165,11 +165,11 @@ serializing and deserializing the flatbuffer binary data.
 
 === "C"
 
-    !!! Note 
+    !!! Note
 
-        If you're working in C, you need to use the separate project 
+        If you're working in C, you need to use the separate project
-        [FlatCC](https://github.com/dvidelabs/flatcc) which contains a schema 
+        [FlatCC](https://github.com/dvidelabs/flatcc) which contains a schema
-        compiler and runtime library in C for C. See 
+        compiler and runtime library in C for C. See
         [flatcc build instructions](https://github.com/dvidelabs/flatcc#building).
 
         Please be aware of the difference between `flatc` and `flatcc` tools.
@@ -291,7 +291,7 @@ generally involves two things:
     // Convenient namespace macro to manage long namespace prefix.
     #undef ns
     // Specified in the schema.
-    #define ns(x) FLATBUFFERS_WRAP_NAMESPACE(MyGame_Sample, x) 
+    #define ns(x) FLATBUFFERS_WRAP_NAMESPACE(MyGame_Sample, x)
 
     // A helper to simplify creating vectors from C-arrays.
     #define c_vec_len(V) (sizeof(V)/sizeof((V)[0]))
@@ -333,14 +333,14 @@ generally involves two things:
 === "JavaScript"
 
     ```javascript
-    // The following code is an example - use your desired module flavor by 
+    // The following code is an example - use your desired module flavor by
-    // transpiling from TS. 
+    // transpiling from TS.
     var flatbuffers = require('/js/flatbuffers').flatbuffers;
     var MyGame = require('./monster_generated').MyGame; // Generated by `flatc`.
 
     //------------------------------------------------------------------------//
 
-    // The following code is for browser-based HTML/JavaScript. Use the above 
+    // The following code is for browser-based HTML/JavaScript. Use the above
     // code for JavaScript module loaders (e.g. Node.js).
     <script src="../js/flatbuffers.js"></script>
     <script src="monster_generated.js"></script> // Generated by `flatc`.
@@ -384,12 +384,12 @@ generally involves two things:
         // The last segment of the class name matches the file name.
         $class = substr($class_name, strrpos($class_name, "\\") + 1);
         // `flatbuffers` root.
-        $root_dir = join(DIRECTORY_SEPARATOR, array(dirname(dirname(__FILE__)))); 
+        $root_dir = join(DIRECTORY_SEPARATOR, array(dirname(dirname(__FILE__))));
 
         // Contains the `*.php` files for the FlatBuffers library and the `flatc`
         // generated files.
         $paths = array(join(DIRECTORY_SEPARATOR, array($root_dir, "php")),
-          join(DIRECTORY_SEPARATOR, 
+          join(DIRECTORY_SEPARATOR,
             array($root_dir, "samples", "MyGame", "Sample")));
         foreach ($paths as $path) {
         $file = join(DIRECTORY_SEPARATOR, array($path, $class . ".php"));
@@ -546,7 +546,7 @@ for it. The builder will automatically resize the backing buffer when necessary.
 === "Lobster"
 
     ```lobster
-    // Construct a Builder with 1024 byte backing array. 
+    // Construct a Builder with 1024 byte backing array.
     let builder = flatbuffers_builder {}
     ```
 
@@ -630,9 +630,9 @@ Let's serialize two weapon strings.
 === "C"
 
     ```c
-    flatbuffers_string_ref_t weapon_one_name 
+    flatbuffers_string_ref_t weapon_one_name
         = flatbuffers_string_create_str(B, "Sword");
-    flatbuffers_string_ref_t weapon_two_name 
+    flatbuffers_string_ref_t weapon_two_name
         = flatbuffers_string_create_str(B, "Axe");
     ```
 
@@ -722,7 +722,7 @@ Let's serialize two weapon strings.
 
 === "TypeScript"
 
-    ```ts  
+    ```ts
     let weaponOne = builder.createString('Sword');
     let weaponTwo = builder.createString('Axe');
     ```
@@ -760,9 +760,9 @@ offset to the weapon's name and a numerical value for the damage field.
     uint16_t weapon_one_damage = 3;
     uint16_t weapon_two_damage = 5;
 
-    ns(Weapon_ref_t) sword 
+    ns(Weapon_ref_t) sword
         = ns(Weapon_create(B, weapon_one_name, weapon_one_damage));
-    ns(Weapon_ref_t) axe 
+    ns(Weapon_ref_t) axe
         = ns(Weapon_create(B, weapon_two_name, weapon_two_damage));
     ```
 
@@ -772,7 +772,7 @@ offset to the weapon's name and a numerical value for the damage field.
     short weaponOneDamage = 3;
     short weaponTwoDamage = 5;
 
-    // Use the `CreateWeapon()` helper function to create the weapons, since we 
+    // Use the `CreateWeapon()` helper function to create the weapons, since we
     // set every field.
     Offset<Weapon> sword =
         Weapon.CreateWeapon(builder, weaponOneName, weaponOneDamage);
@@ -1073,7 +1073,7 @@ The Builder provides multiple ways to create `vectors`.
 === "Java"
 
     ```java
-    // Place the two weapons into an array, and pass it to the 
+    // Place the two weapons into an array, and pass it to the
     // `createWeaponsVector()` method to create a FlatBuffer vector.
     int[] weaps = new int[2];
     weaps[0] = sword;
@@ -1096,7 +1096,7 @@ The Builder provides multiple ways to create `vectors`.
 === "Kotlin"
 
     ```kotlin
-    // Place the two weapons into an array, and pass it to the 
+    // Place the two weapons into an array, and pass it to the
     // `createWeaponsVector()` method to create a FlatBuffer vector.
     val weaps = intArrayOf(sword, axe)
 
@@ -1134,12 +1134,8 @@ The Builder provides multiple ways to create `vectors`.
 === "Python"
 
     ```py
-    # Create a FlatBuffer vector and prepend the weapons.
+    # Use the generated helper to create the weapons vector from offsets.
-    # Note: Since we prepend the data, prepend them in reverse order.
+    weapons = MyGame.Sample.Monster.CreateWeaponsVector(builder, [sword, axe])
-    MyGame.Sample.Monster.StartWeaponsVector(builder, 2)
-    builder.PrependUOffsetTRelative(axe)
-    builder.PrependUOffsetTRelative(sword)
-    weapons = builder.EndVector()
     ```
 
 === "Rust"
@@ -1352,16 +1348,13 @@ bit more directly.
     ```py
     # Create a `vector` representing the inventory of the Orc. Each number
     # could correspond to an item that can be claimed after he is slain.
-    # Note: Since we prepend the bytes, this loop iterates in reverse.
+    inv = MyGame.Sample.Monster.CreateInventoryVector(builder, range(0, 10))
-    MyGame.Sample.Monster.StartInventoryVector(builder, 10)
-    for i in reversed(range(0, 10)):
-        builder.PrependByte(i)
-    inv = builder.EndVector()
 
-    MyGame.Sample.Monster.StartPathVector(builder, 2)
+    path_points = [
-    MyGame.Sample.Vec3.CreateVec3(builder, 1.0, 2.0, 3.0)
+        MyGame.Sample.Vec3T(x=1.0, y=2.0, z=3.0),
-    MyGame.Sample.Vec3.CreateVec3(builder, 4.0, 5.0, 6.0)
+        MyGame.Sample.Vec3T(x=4.0, y=5.0, z=6.0),
-    path = builder.EndVector()
+    ]
+    path = MyGame.Sample.Monster.CreatePathVector(builder, path_points)
     ```
 
 === "Rust"
@@ -1537,7 +1530,7 @@ the necessary values and Offsets to make a `Monster`.
     ```java
     // Serialize a name for our monster, called "Orc".
     int name = builder.createString("Orc");
-  
+
     // Create our monster using `startMonster()` and `endMonster()`.
     Monster.startMonster(builder);
     Monster.addPos(builder, Vec3.createVec3(builder, 1.0f, 2.0f, 3.0f));
@@ -1567,7 +1560,7 @@ the necessary values and Offsets to make a `Monster`.
     MyGame.Sample.Monster.addName(builder, name);
     MyGame.Sample.Monster.addInventory(builder, inv);
     MyGame.Sample.Monster.addWeapons(builder, weapons);
-    MyGame.Sample.Monster.addEquippedType(builder, 
+    MyGame.Sample.Monster.addEquippedType(builder,
         MyGame.Sample.Equipment.Weapon);
     MyGame.Sample.Monster.addEquipped(builder, axe);
     MyGame.Sample.Monster.addPath(builder, path);
@@ -1649,7 +1642,7 @@ the necessary values and Offsets to make a `Monster`.
     \MyGame\Sample\Monster::AddInventory($builder, $inv);
     \MyGame\Sample\Monster::AddColor($builder, \MyGame\Sample\Color::Red);
     \MyGame\Sample\Monster::AddWeapons($builder, $weapons);
-    \MyGame\Sample\Monster::AddEquippedType($builder, 
+    \MyGame\Sample\Monster::AddEquippedType($builder,
         \MyGame\Sample\Equipment::Weapon);
     \MyGame\Sample\Monster::AddEquipped($builder, $axe);
     \MyGame\Sample\Monster::AddPath($builder, $path);
@@ -1782,7 +1775,7 @@ deserializing the buffer later.
 
     ```dart
     // Call `finish()` to instruct the builder that this monster is complete.
-    // See the next code section, as in Dart `finish` will also return the byte 
+    // See the next code section, as in Dart `finish` will also return the byte
     // array.
     ```
 
@@ -1982,7 +1975,7 @@ like so:
     ```php
     // This must be called after `finish()`.
     $buf = $builder->dataBuffer(); // Of type `Google\FlatBuffers\ByteBuffer`
-    // The data in this ByteBuffer does NOT start at 0, but at 
+    // The data in this ByteBuffer does NOT start at 0, but at
     // buf->getPosition().
     // The end of the data is marked by buf->capacity(), so the size is
     // buf->capacity() - buf->getPosition().
@@ -2011,6 +2004,8 @@ like so:
     let buf = builder.sizedByteArray
     // or you can use to get an object of type Data
     let bufData = ByteBuffer(data: builder.data)
+    // or
+    let buf = builder.sizedBuffer
     ```
 
 === "TypeScript"
@@ -2054,7 +2049,7 @@ functions to get the root object given the buffer.
     ```c++
     uint8_t *buffer_pointer = /* the data you just read */;
 
-    // Get an view to the root object inside the buffer.
+    // Get a view to the root object inside the buffer.
     Monster monster = GetMonster(buffer_pointer);
     ```
 
@@ -2074,7 +2069,7 @@ functions to get the root object given the buffer.
     ```c#
     byte[] bytes = /* the data you just read */
 
-    // Get an view to the root object inside the buffer.
+    // Get a view to the root object inside the buffer.
     Monster monster = Monster.GetRootAsMonster(new ByteBuffer(bytes));
     ```
 
@@ -2202,7 +2197,7 @@ functions to get the root object given the buffer.
 
     ```ts
     // the data you just read, as a `Uint8Array`.
-    // Note that the example here uses `readFileSync` from the built-in `fs` 
+    // Note that the example here uses `readFileSync` from the built-in `fs`
     // module, but other methods for accessing the file contents will also work.
     let bytes = new Uint8Array(readFileSync('./monsterdata.bin'));
 
@@ -2654,9 +2649,9 @@ you need to handle the result as a FlatBuffer table. Here we iterate over the
     ns(Weapon_vec_t) weapons = ns(Monster_weapons(monster));
     size_t weapons_len = ns(Weapon_vec_len(weapons));
     // We can use `const char *` instead of `flatbuffers_string_t`.
-    const char *second_weapon_name = 
+    const char *second_weapon_name =
         ns(Weapon_name(ns(Weapon_vec_at(weapons, 1))));
-    uint16_t second_weapon_damage = 
+    uint16_t second_weapon_damage =
         ns(Weapon_damage(ns(Weapon_vec_at(weapons, 1))));
     ```
 
@@ -2789,11 +2784,11 @@ only stores a FlatBuffer `table`).
 
     ```c++
     auto union_type = monster.equipped_type();
- 
+
     if (union_type == Equipment_Weapon) {
          // Requires `static_cast` to type `const Weapon*`.
         auto weapon = static_cast<const Weapon*>(monster->equipped());
- 
+
         auto weapon_name = weapon->name()->str(); // "Axe"
         auto weapon_damage = weapon->damage();    // 5
     }
@@ -2805,7 +2800,7 @@ only stores a FlatBuffer `table`).
     // Access union type field.
     if (ns(Monster_equipped_type(monster)) == ns(Equipment_Weapon)) {
         // Cast to appropriate type:
-        // C allows for silent void pointer assignment, so we need no 
+        // C allows for silent void pointer assignment, so we need no
         // explicit cast.
         ns(Weapon_table_t) weapon = ns(Monster_equipped(monster));
         const char *weapon_name = ns(Weapon_name(weapon)); // "Axe"
@@ -2817,10 +2812,10 @@ only stores a FlatBuffer `table`).
 
     ```c#
     var unionType = monster.EquippedType;
- 
+
     if (unionType == Equipment.Weapon) {
         var weapon = monster.Equipped<Weapon>().Value;
- 
+
         var weaponName = weapon.Name;     // "Axe"
         var weaponDamage = weapon.Damage; // 5
     }
@@ -2850,7 +2845,7 @@ only stores a FlatBuffer `table`).
         unionType := monster.EquippedType()
 
         if unionType == sample.EquipmentWeapon {
-            // Create a `sample.Weapon` object that can be initialized with the 
+            // Create a `sample.Weapon` object that can be initialized with the
             // contents of the `flatbuffers.Table` (`unionTable`), which was
             // populated by `monster.Equipped()`.
             unionWeapon = new(sample.Weapon)
@@ -2885,7 +2880,7 @@ only stores a FlatBuffer `table`).
         // 'Axe'
         var weaponName = monster.equipped(new MyGame.Sample.Weapon()).name();
         // 5
-        var weaponDamage = 
+        var weaponDamage =
             monster.equipped(new MyGame.Sample.Weapon()).damage();
     }
     ```
@@ -2910,8 +2905,8 @@ only stores a FlatBuffer `table`).
     union_type = monster.equipped_type
 
     if union_type == MyGame_Sample_Equipment_Weapon:
-        // `monster.equipped_as_Weapon` returns a FlatBuffer handle much like 
+        // `monster.equipped_as_Weapon` returns a FlatBuffer handle much like
-        // normal table fields, but this is only valid to call if we already 
+        // normal table fields, but this is only valid to call if we already
         // know it is the correct type.
         let union_weapon = monster.equipped_as_Weapon
 
@@ -2943,8 +2938,8 @@ only stores a FlatBuffer `table`).
         $weapon_name =
             $monster->getEquipped(new \MyGame\Sample\Weapon())->getName();
         // 5
-        $weapon_damage = 
+        $weapon_damage =
-            $monster->getEquipped(new \MyGame\Sample\Weapon())->getDamage(); 
+            $monster->getEquipped(new \MyGame\Sample\Weapon())->getDamage();
     }
     ```
 
@@ -2994,8 +2989,8 @@ only stores a FlatBuffer `table`).
 
     if (unionType == MyGame.Sample.Equipment.Weapon) {
         // 'Axe'
-        let weaponName = monster.equipped(new MyGame.Sample.Weapon()).name();    
+        let weaponName = monster.equipped(new MyGame.Sample.Weapon()).name();
-        // 5 
+        // 5
         let weaponDamage = monster.equipped(new MyGame.Sample.Weapon()).damage();
     }
     ```

eslint.config.mjs

@@ -0,0 +1,10 @@
+import globals from "globals";
+import pluginJs from "@eslint/js";
+import tseslint from "typescript-eslint";
+
+export default [
+  {files: ["**/*.{js,mjs,cjs,ts}"]},
+  {languageOptions: { globals: {...globals.browser, ...globals.node} }},
+  pluginJs.configs.recommended,
+  ...tseslint.configs.recommended,
+];

examples/go-echo/client/client.go

@@ -28,12 +28,12 @@ func ReadResponse(r *http.Response) {
 
 	res := net.GetRootAsResponse(body, 0)
 	player := res.Player(nil)
-	
+
 	fmt.Printf("Got response (name: %v, hp: %v)\n", string(player.Name()), player.Hp())
 }
 
 func main() {
-	body := RequestBody()	
+	body := RequestBody()
 	req, err := http.NewRequest("POST", "http://localhost:8080/echo", body)
 	if err != nil {
 		fmt.Println(err)

examples/go-echo/hero/Warrior.go

@@ -8,7 +8,7 @@ import (
 
 type WarriorT struct {
 	Name string `json:"name"`
-	Hp uint32 `json:"hp"`
+	Hp   uint32 `json:"hp"`
 }
 
 func (t *WarriorT) Pack(builder *flatbuffers.Builder) flatbuffers.UOffsetT {

go/builder.go

@@ -104,15 +104,18 @@ func (b *Builder) StartObject(numfields int) {
 // logically-equal vtables will be deduplicated.
 //
 // A vtable has the following format:
-//   <VOffsetT: size of the vtable in bytes, including this value>
+//
-//   <VOffsetT: size of the object in bytes, including the vtable offset>
+//	  <VOffsetT: size of the vtable in bytes, including this value>
-//   <VOffsetT: offset for a field> * N, where N is the number of fields in
+//	  <VOffsetT: size of the object in bytes, including the vtable offset>
-//	        the schema for this type. Includes deprecated fields.
+//	  <VOffsetT: offset for a field> * N, where N is the number of fields in
+//		        the schema for this type. Includes deprecated fields.
+//
 // Thus, a vtable is made of 2 + N elements, each SizeVOffsetT bytes wide.
 //
 // An object has the following format:
-//   <SOffsetT: offset to this object's vtable (may be negative)>
+//
-//   <byte: data>+
+//	<SOffsetT: offset to this object's vtable (may be negative)>
+//	<byte: data>+
 func (b *Builder) WriteVtable() (n UOffsetT) {
 	// Prepend a zero scalar to the object. Later in this function we'll
 	// write an offset here that points to the object's vtable:
@@ -296,8 +299,9 @@ func (b *Builder) PrependUOffsetT(off UOffsetT) {
 // StartVector initializes bookkeeping for writing a new vector.
 //
 // A vector has the following format:
-//   <UOffsetT: number of elements in this vector>
+//
-//   <T: data>+, where T is the type of elements of this vector.
+//	<UOffsetT: number of elements in this vector>
+//	<T: data>+, where T is the type of elements of this vector.
 func (b *Builder) StartVector(elemSize, numElems, alignment int) UOffsetT {
 	b.assertNotNested()
 	b.nested = true

go/encode.go

@@ -25,7 +25,7 @@ func GetByte(buf []byte) byte {
 
 // GetBool decodes a little-endian bool from a byte slice.
 func GetBool(buf []byte) bool {
-	return buf[0] == 1
+	return buf[0] != 0
 }
 
 // GetUint8 decodes a little-endian uint8 from a byte slice.

go/grpc.go

@@ -1,7 +1,17 @@
 package flatbuffers
 
-// Codec implements gRPC-go Codec which is used to encode and decode messages.
+import "errors"
-var Codec = "flatbuffers"
+
+var (
+	// Codec implements gRPC-go Codec which is used to encode and decode messages.
+	Codec = "flatbuffers"
+
+	// ErrInsufficientData is returned when the data is too short to read the root UOffsetT.
+	ErrInsufficientData = errors.New("insufficient data")
+
+	// ErrInvalidRootOffset is returned when the root UOffsetT is out of bounds.
+	ErrInvalidRootOffset = errors.New("invalid root offset")
+)
 
 // FlatbuffersCodec defines the interface gRPC uses to encode and decode messages.  Note
 // that implementations of this interface must be thread safe; a Codec's
@@ -15,7 +25,21 @@ func (FlatbuffersCodec) Marshal(v interface{}) ([]byte, error) {
 
 // Unmarshal parses the wire format into v.
 func (FlatbuffersCodec) Unmarshal(data []byte, v interface{}) error {
-	v.(flatbuffersInit).Init(data, GetUOffsetT(data))
+	// Need at least 4 bytes to read the root table offset (UOffsetT).
+	// Vtable soffset_t and metadata are read later during field access.
+	if len(data) < SizeUOffsetT {
+		return ErrInsufficientData
+	}
+
+	off := GetUOffsetT(data)
+
+	// The root UOffsetT must be within the data buffer
+	// Compare in the unsigned domain to avoid signedness pitfalls
+	if off > UOffsetT(len(data)-SizeUOffsetT) {
+		return ErrInvalidRootOffset
+	}
+
+	v.(flatbuffersInit).Init(data, off)
 	return nil
 }
 

go/table.go

@@ -31,10 +31,25 @@ func (t *Table) String(off UOffsetT) string {
 }
 
 // ByteVector gets a byte slice from data stored inside the flatbuffer.
+// If the offset is invalid or out of bounds, returns nil to prevent crashes.
 func (t *Table) ByteVector(off UOffsetT) []byte {
+	n := UOffsetT(len(t.Bytes))
+	// Need at least SizeUOffsetT bytes to read the relative vector offset.
+	u := UOffsetT(SizeUOffsetT)
+	if n < u || off > n-u {
+		return nil
+	}
 	off += GetUOffsetT(t.Bytes[off:])
+	// Need at least SizeUOffsetT bytes to read the vector length.
+	if n < u || off > n-u {
+		return nil
+	}
 	start := off + UOffsetT(SizeUOffsetT)
 	length := GetUOffsetT(t.Bytes[off:])
+	// Avoid overflow by checking the length against the remaining buffer space.
+	if length > n-start {
+		return nil
+	}
 	return t.Bytes[start : start+length]
 }
 

goldens/README.md

@@ -3,8 +3,8 @@
 This directory is a repository for the generated files of `flatc`.
 
 We check in the generated code so we can see, during a PR review, how the
-changes affect the generated output. Its also useful as a reference to point too
+changes affect the generated output. It's also useful as a reference to show
-as how things work across various languages.
+how things work across various languages.
 
 These files are **NOT** intended to be depended on by any code, such as tests or
 or compiled examples.
@@ -18,7 +18,7 @@ view of things across languages. These are kept in the `schema/` directory.
 Some languages may not support every generation feature, so each language is
 required to specify the `flatc` arguments individually.
 
-* Try to avoid includes and nested directories, preferring it as flat as 
+* Try to avoid includes and nested directories, preferring it as flat as
 possible.
 
 ## Updating

goldens/cpp/basic_generated.h

@@ -9,8 +9,8 @@
 // Ensure the included flatbuffers.h is the same version as when this file was
 // generated, otherwise it may not be compatible.
 static_assert(FLATBUFFERS_VERSION_MAJOR == 25 &&
-              FLATBUFFERS_VERSION_MINOR == 2 &&
+              FLATBUFFERS_VERSION_MINOR == 12 &&
-              FLATBUFFERS_VERSION_REVISION == 10,
+              FLATBUFFERS_VERSION_REVISION == 19,
              "Non-compatible flatbuffers version included");
 
 namespace flatbuffers {
@@ -30,7 +30,8 @@ struct Galaxy FLATBUFFERS_FINAL_CLASS : private ::flatbuffers::Table {
   int64_t num_stars() const {
     return GetField<int64_t>(VT_NUM_STARS, 0);
   }
-  bool Verify(::flatbuffers::Verifier &verifier) const {
+  template <bool B = false>
+  bool Verify(::flatbuffers::VerifierTemplate<B> &verifier) const {
     return VerifyTableStart(verifier) &&
            VerifyField<int64_t>(verifier, VT_NUM_STARS, 8) &&
            verifier.EndTable();
@@ -75,7 +76,8 @@ struct Universe FLATBUFFERS_FINAL_CLASS : private ::flatbuffers::Table {
   const ::flatbuffers::Vector<::flatbuffers::Offset<flatbuffers::goldens::Galaxy>> *galaxies() const {
     return GetPointer<const ::flatbuffers::Vector<::flatbuffers::Offset<flatbuffers::goldens::Galaxy>> *>(VT_GALAXIES);
   }
-  bool Verify(::flatbuffers::Verifier &verifier) const {
+  template <bool B = false>
+  bool Verify(::flatbuffers::VerifierTemplate<B> &verifier) const {
     return VerifyTableStart(verifier) &&
            VerifyField<double>(verifier, VT_AGE, 8) &&
            VerifyOffset(verifier, VT_GALAXIES) &&
@@ -135,14 +137,16 @@ inline const flatbuffers::goldens::Universe *GetSizePrefixedUniverse(const void
   return ::flatbuffers::GetSizePrefixedRoot<flatbuffers::goldens::Universe>(buf);
 }
 
+template <bool B = false>
 inline bool VerifyUniverseBuffer(
-    ::flatbuffers::Verifier &verifier) {
+    ::flatbuffers::VerifierTemplate<B> &verifier) {
-  return verifier.VerifyBuffer<flatbuffers::goldens::Universe>(nullptr);
+  return verifier.template VerifyBuffer<flatbuffers::goldens::Universe>(nullptr);
 }
 
+template <bool B = false>
 inline bool VerifySizePrefixedUniverseBuffer(
-    ::flatbuffers::Verifier &verifier) {
+    ::flatbuffers::VerifierTemplate<B> &verifier) {
-  return verifier.VerifySizePrefixedBuffer<flatbuffers::goldens::Universe>(nullptr);
+  return verifier.template VerifySizePrefixedBuffer<flatbuffers::goldens::Universe>(nullptr);
 }
 
 inline void FinishUniverseBuffer(

goldens/cpp/generate.py

@@ -2,9 +2,9 @@ from golden_utils import flatc_golden
 
 
 def flatc(options, schema):
-    # Wrap the golden flatc generator with C++ specifics
+  # Wrap the golden flatc generator with C++ specifics
-    flatc_golden(options=["--cpp"] + options, schema=schema, prefix="cpp")
+  flatc_golden(options=["--cpp"] + options, schema=schema, prefix="cpp")
 
 
 def GenerateCpp():
-    flatc([], "basic.fbs")
+  flatc([], "basic.fbs")

goldens/csharp/flatbuffers/goldens/Galaxy.cs

@@ -13,7 +13,7 @@ public struct Galaxy : IFlatbufferObject
 {
   private Table __p;
   public ByteBuffer ByteBuffer { get { return __p.bb; } }
-  public static void ValidateVersion() { FlatBufferConstants.FLATBUFFERS_25_2_10(); }
+  public static void ValidateVersion() { FlatBufferConstants.FLATBUFFERS_25_12_19(); }
   public static Galaxy GetRootAsGalaxy(ByteBuffer _bb) { return GetRootAsGalaxy(_bb, new Galaxy()); }
   public static Galaxy GetRootAsGalaxy(ByteBuffer _bb, Galaxy obj) { return (obj.__assign(_bb.GetInt(_bb.Position) + _bb.Position, _bb)); }
   public void __init(int _i, ByteBuffer _bb) { __p = new Table(_i, _bb); }

goldens/csharp/flatbuffers/goldens/Universe.cs

@@ -13,7 +13,7 @@ public struct Universe : IFlatbufferObject
 {
   private Table __p;
   public ByteBuffer ByteBuffer { get { return __p.bb; } }
-  public static void ValidateVersion() { FlatBufferConstants.FLATBUFFERS_25_2_10(); }
+  public static void ValidateVersion() { FlatBufferConstants.FLATBUFFERS_25_12_19(); }
   public static Universe GetRootAsUniverse(ByteBuffer _bb) { return GetRootAsUniverse(_bb, new Universe()); }
   public static Universe GetRootAsUniverse(ByteBuffer _bb, Universe obj) { return (obj.__assign(_bb.GetInt(_bb.Position) + _bb.Position, _bb)); }
   public static bool VerifyUniverse(ByteBuffer _bb) {Google.FlatBuffers.Verifier verifier = new Google.FlatBuffers.Verifier(_bb); return verifier.VerifyBuffer("", false, UniverseVerify.Verify); }

goldens/csharp/generate.py

@@ -2,9 +2,9 @@ from golden_utils import flatc_golden
 
 
 def flatc(options, schema):
-    # Wrap the golden flatc generator with C# specifics
+  # Wrap the golden flatc generator with C# specifics
-    flatc_golden(options=["--csharp"] + options, schema=schema, prefix="csharp")
+  flatc_golden(options=["--csharp"] + options, schema=schema, prefix="csharp")
 
 
 def GenerateCSharp():
-    flatc([], "basic.fbs")
+  flatc([], "basic.fbs")

goldens/dart/basic_flatbuffers.goldens_generated.dart

@@ -7,6 +7,7 @@ import 'dart:typed_data' show Uint8List;
 import 'package:flat_buffers/flat_buffers.dart' as fb;
 
 
+
 class Galaxy {
   Galaxy._(this._bc, this._bcOffset);
   factory Galaxy(List<int> bytes) {

goldens/dart/generate.py

@@ -2,9 +2,9 @@ from golden_utils import flatc_golden
 
 
 def flatc(options, schema):
-    # Wrap the golden flatc generator with Dart specifics
+  # Wrap the golden flatc generator with Dart specifics
-    flatc_golden(options=["--dart"] + options, schema=schema, prefix="dart")
+  flatc_golden(options=["--dart"] + options, schema=schema, prefix="dart")
 
 
 def GenerateDart():
-    flatc([], "basic.fbs")
+  flatc([], "basic.fbs")