FlatBuffers Version 24.12.23 (#8459)

* FlatBuffers Release 24.12.23

* Fixed missing generated file version checks

* Run generate_code and fix cpp17 tests

.bazelci/presubmit.yml

@@ -1,10 +1,11 @@
 ---
 buildifier: latest
+bazel: 6.4.0
 platforms:
   ubuntu1804:
     environment:
       CC: clang
-      SWIFT_VERSION: "5.5.3"
+      SWIFT_VERSION: "5.8"
       SWIFT_HOME: "$HOME/swift-$SWIFT_VERSION"
       PATH: "$PATH:$SWIFT_HOME/usr/bin"
     shell_commands:
@@ -18,7 +19,7 @@ platforms:
   ubuntu2004:
     environment:
       CC: clang
-      SWIFT_VERSION: "5.5.3"
+      SWIFT_VERSION: "5.8"
       SWIFT_HOME: "$HOME/swift-$SWIFT_VERSION"
       PATH: "$PATH:$SWIFT_HOME/usr/bin"
     shell_commands:
@@ -30,7 +31,9 @@ platforms:
     test_targets:
     - "//..."
   macos:
+    xcode_version: "14.3"
     build_targets:
-    - "//..."
+    - "//:flatbuffers"
+    - "//:flatc"
     test_targets:
-    - "//..."
+    - "//tests:flatbuffers_test"

.bazelignore

@@ -1 +1 @@
-node_modules
+ts/node_modules

.bazelrc

@@ -1,4 +1,12 @@
 # We cannot use "common" here because the "version" command doesn't support
 # --deleted_packages. We need to specify it for both build and query instead.
-build --deleted_packages=tests/ts/bazel_repository_test_dir
-query --deleted_packages=tests/ts/bazel_repository_test_dir
+build --deleted_packages=tests/bazel_repository_test_dir,tests/ts/bazel_repository_test_dir
+query --deleted_packages=tests/bazel_repository_test_dir,tests/ts/bazel_repository_test_dir
+# Point tools such as coursier (used in rules_jvm_external) to Bazel's internal JDK
+# suggested in https://github.com/bazelbuild/rules_jvm_external/issues/445
+common --repo_env=JAVA_HOME=../bazel_tools/jdk
+common --action_env=JAVA_HOME=../bazel_tools/jdk
+# Workaround "Error: need --enable_runfiles on Windows for to support rules_js"
+common:windows --enable_runfiles
+# Swift is not required on Windows
+common:windows --deleted_packages=swift

.github/labeler.yml

@@ -48,6 +48,7 @@ java:
 kotlin:
   - '**/*.kt'
   - src/idl_gen_kotlin.cpp
+  - src/idl_gen_kotlin_kmp.cpp
 
 lua:
   - '**/*.lua'

.github/workflows/build.yml

@@ -9,10 +9,12 @@ on:
       - "*" # new tag version, like `0.8.4` or else
     branches:
       - master
-      - flatbuffers-64
   pull_request:
     branches:
       - master
+  schedule:
+    # Run daily at 4:45 A.M. to catch dependencies that break us.
+    - cron: '45 4 * * *'
 
 jobs:
   build-linux:
@@ -22,10 +24,10 @@ jobs:
       digests-gcc: ${{ steps.hash-gcc.outputs.hashes }}
       digests-clang: ${{ steps.hash-clang.outputs.hashes }}
     name: Build Linux
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        cxx: [g++-10, clang++-12]
+        cxx: [g++-13, clang++-18]
       fail-fast: false
     steps:
     - uses: actions/checkout@v3
@@ -39,12 +41,8 @@ jobs:
       run: |
         chmod +x flatc
         ./flatc --version
-    # - name: flatc tests
-    #   run: |
-    #     yarn global add esbuild
-    #     python3 tests/flatc/main.py
     - name: upload build artifacts
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: Linux flatc binary ${{ matrix.cxx }}
         path: flatc
@@ -58,27 +56,29 @@ jobs:
       with:
         files: Linux.flatc.binary.${{ matrix.cxx }}.zip
     - name: Generate SLSA subjects - clang
-      if: matrix.cxx == 'clang++-12' && startsWith(github.ref, 'refs/tags/')
+      if: matrix.cxx == 'clang++-18' && startsWith(github.ref, 'refs/tags/')
       id: hash-clang
       run: echo "hashes=$(sha256sum Linux.flatc.binary.${{ matrix.cxx }}.zip | base64 -w0)" >> $GITHUB_OUTPUT
     - name: Generate SLSA subjects - gcc
-      if: matrix.cxx == 'g++-10' && startsWith(github.ref, 'refs/tags/')
+      if: matrix.cxx == 'g++-13' && startsWith(github.ref, 'refs/tags/')
       id: hash-gcc
       run: echo "hashes=$(sha256sum Linux.flatc.binary.${{ matrix.cxx }}.zip | base64 -w0)" >> $GITHUB_OUTPUT
-      
-  build-linux-no-file-tests:    
+
+  build-linux-no-file-tests:
     name: Build Linux with -DFLATBUFFERS_NO_FILE_TESTS
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - name: cmake
-      run: CXX=clang++-12 cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON -DFLATBUFFERS_CXX_FLAGS="-DFLATBUFFERS_NO_FILE_TESTS" .
+      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
       run: make -j
+    - name: test
+      run: ./flattests
 
-  build-linux-out-of-source:    
+  build-linux-out-of-source:
     name: Build Linux with out-of-source build location
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - name: make build directory
@@ -86,7 +86,7 @@ jobs:
     - name: cmake
       working-directory: build
       run: >
-        CXX=clang++-12 cmake .. -G "Unix Makefiles" -DFLATBUFFERS_STRICT_MODE=ON
+        CXX=clang++-18 cmake .. -G "Unix Makefiles" -DFLATBUFFERS_STRICT_MODE=ON
         -DFLATBUFFERS_BUILD_CPP17=ON -DFLATBUFFERS_CPP_STD=17
     - name: build
       working-directory: build
@@ -100,22 +100,23 @@ jobs:
 
   build-linux-cpp-std:
     name: Build Linux C++
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       fail-fast: false
       matrix:
         std: [11, 14, 17, 20, 23]
-        cxx: [g++-10, clang++-12]
+        cxx: [g++-13, clang++-18]
         exclude:
-          # GCC 10.3.0 doesn't support std 23
-          - cxx: g++-10
+          # Clang++15 10.3.0 stdlibc++ doesn't fully support std 23
+          - cxx: clang++-18
             std: 23
+
     steps:
     - uses: actions/checkout@v3
     - name: cmake
       run: >
-        CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles" 
-        -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON 
+        CXX=${{ matrix.cxx }} cmake -G "Unix Makefiles"
+        -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON
         -DFLATBUFFERS_CPP_STD=${{ matrix.std }}
         -DFLATBUFFERS_BUILD_CPP17=${{ matrix.std >= 17 && 'On' || 'Off'}}
     - name: build
@@ -126,7 +127,7 @@ jobs:
       if: matrix.std >= 17
       run: ./flattests_cpp17
 
-  build-windows-cpp-std:
+  build-cpp-std:
     name: Build Windows C++
     runs-on: windows-2019
     strategy:
@@ -139,8 +140,8 @@ jobs:
       uses: microsoft/setup-msbuild@v1.1
     - name: cmake
       run: >
-        cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE=Release 
-        -DFLATBUFFERS_STRICT_MODE=ON 
+        cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE=Release
+        -DFLATBUFFERS_STRICT_MODE=ON
         -DFLATBUFFERS_CPP_STD=${{ matrix.std }}
         -DFLATBUFFERS_BUILD_CPP17=${{ matrix.std >= 17 && 'On' || 'Off'}}
     - name: build
@@ -156,7 +157,7 @@ jobs:
       contents: write
     outputs:
       digests: ${{ steps.hash.outputs.hashes }}
-    name: Build Windows 2019 
+    name: Build Windows 2019
     runs-on: windows-2019
     steps:
     - uses: actions/checkout@v3
@@ -168,10 +169,8 @@ jobs:
       run: msbuild.exe FlatBuffers.sln /p:Configuration=Release /p:Platform=x64
     - name: test
       run: Release\flattests.exe
-    # - name: flatc tests
-    #   run: python3 tests/flatc/main.py --flatc Release\flatc.exe
     - name: upload build artifacts
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
         name: Windows flatc binary
         path: Release\flatc.exe
@@ -190,42 +189,14 @@ jobs:
       shell: bash
       run: echo "hashes=$(sha256sum Windows.flatc.binary.zip | base64 -w0)" >> $GITHUB_OUTPUT
 
-  build-windows-2017:
-    name: Build Windows 2017
-    runs-on: windows-2019
-    steps:
-    - uses: actions/checkout@v3
-    - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.1
-    - name: cmake
-      run: cmake -G "Visual Studio 16 2019" -A x64 -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON .
-    - name: build tool version 15 (VS 2017)
-      run: msbuild.exe FlatBuffers.sln /p:Configuration=Release /p:Platform=x64 /p:VisualStudioVersion=15.0
-    - name: test
-      run: Release\flattests.exe
-
-  build-windows-2015:
-    name: Build Windows 2015
-    runs-on: windows-2019
-    steps:
-    - uses: actions/checkout@v3
-    - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.1
-    - name: cmake
-      run: cmake -G "Visual Studio 14 2015" -A x64 -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON .
-    - name: build tool version 14 (VS 2015)
-      run: msbuild.exe FlatBuffers.sln /p:Configuration=Release /p:Platform=x64 /p:VisualStudioVersion=14.0
-    - name: test
-      run: Release\flattests.exe
-
   build-dotnet-windows:
     name: Build .NET Windows
-    runs-on: windows-2019
+    runs-on: windows-2022-64core
     strategy:
       matrix:
         configuration: [
           '',
-          '-p:UnsafeByteBuffer=true', 
+          '-p:UnsafeByteBuffer=true',
           # Fails two tests currently.
           #'-p:EnableSpanT=true,UnsafeByteBuffer=true'
           ]
@@ -233,18 +204,18 @@ jobs:
     - uses: actions/checkout@v3
     - name: Setup .NET Core SDK
       uses: actions/setup-dotnet@v3
-      with: 
-        dotnet-version: '3.1.x'
+      with:
+        dotnet-version: '8.0.x'
     - name: Build
       run: |
         cd tests\FlatBuffers.Test
-        dotnet new sln --force --name FlatBuffers.Core.Test
-        dotnet sln FlatBuffers.Core.Test.sln add FlatBuffers.Core.Test.csproj
-        dotnet build -c Release ${{matrix.configuration}} -o out FlatBuffers.Core.Test.sln
+        dotnet new sln --force --name FlatBuffers.Test
+        dotnet sln FlatBuffers.Test.sln add FlatBuffers.Test.csproj
+        dotnet build -c Release ${{matrix.configuration}} -o out FlatBuffers.Test.sln
     - name: Run
       run: |
         cd tests\FlatBuffers.Test
-        out\FlatBuffers.Core.Test.exe
+        out\FlatBuffers.Test.exe
 
   build-mac-intel:
     permissions:
@@ -252,11 +223,11 @@ jobs:
     outputs:
       digests: ${{ steps.hash.outputs.hashes }}
     name: Build Mac (for Intel)
-    runs-on: macos-latest
+    runs-on: macos-latest-large
     steps:
     - uses: actions/checkout@v3
     - name: cmake
-      run: cmake -G "Xcode" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON .
+      run: cmake -G "Xcode" -DCMAKE_OSX_ARCHITECTURES="x86_64" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_STRICT_MODE=ON .
     - name: build
       run: xcodebuild -toolchain clang -configuration Release -target flattests
     - name: check that the binary is x86_64
@@ -270,12 +241,10 @@ jobs:
       run: |
         chmod +x Release/flatc
         Release/flatc --version
-    # - name: flatc tests
-    #  run: python3 tests/flatc/main.py --flatc Release/flatc
     - name: upload build artifacts
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
-        name: Mac flatc binary
+        name: Mac flatc binary Intel
         path: Release/flatc
     # Below if only for release.
     - name: Zip file
@@ -316,9 +285,9 @@ jobs:
         chmod +x Release/flatc
         Release/flatc --version
     - name: upload build artifacts
-      uses: actions/upload-artifact@v1
+      uses: actions/upload-artifact@v4
       with:
-        name: Mac flatc binary
+        name: Mac flatc binary Universal
         path: Release/flatc
     # Below if only for release.
     - name: Zip file
@@ -336,7 +305,7 @@ jobs:
 
   build-android:
    name: Build Android (on Linux)
-   runs-on: ubuntu-latest
+   runs-on: ubuntu-24.04
    steps:
    - uses: actions/checkout@v3
    - name: set up Java
@@ -355,10 +324,10 @@ jobs:
 
   build-generator:
     name: Check Generated Code
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        cxx: [g++-10, clang++-12]
+        cxx: [g++-13, clang++-18]
     steps:
     - uses: actions/checkout@v3
     - name: cmake
@@ -386,10 +355,10 @@ jobs:
 
   build-benchmarks:
     name: Build Benchmarks (on Linux)
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        cxx: [g++-10]
+        cxx: [g++-13]
     steps:
     - uses: actions/checkout@v3
     - name: cmake
@@ -397,14 +366,14 @@ jobs:
     - 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@v1
+      uses: actions/upload-artifact@v4
       with:
         name: Linux flatbenchmark results ${{matrix.cxx}}
         path: benchmarks/results_${{matrix.cxx}}
 
   build-java:
     name: Build Java
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - name: test
@@ -413,22 +382,34 @@ jobs:
 
   build-kotlin-macos:
     name: Build Kotlin MacOS
-    runs-on: macos-latest
+    runs-on: macos-13
     steps:
     - name: Checkout
       uses: actions/checkout@v3
+      # Force Xcode 14.3 since Xcode 15 doesnt support older versions of
+      # kotlin. For Xcode 15, kotlin should be bumpped to 1.9.10
+      # 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'
         java-version: '11'
+    - name: Build flatc
+      run: |
+       cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF .
+       make -j
+       echo "${PWD}" >> $GITHUB_PATH
     - name: Build
       working-directory: kotlin
-      run: ./gradlew clean iosX64Test macosX64Test
+      run: ./gradlew clean iosSimulatorArm64Test macosX64Test macosArm64Test
 
   build-kotlin-linux:
     name: Build Kotlin Linux
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - name: Checkout
       uses: actions/checkout@v3
@@ -437,6 +418,11 @@ jobs:
         distribution: 'temurin'
         java-version: '11'
     - uses: gradle/wrapper-validation-action@v1.0.5
+    - name: Build flatc
+      run: |
+       cmake -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF .
+       make -j
+       echo "${PWD}" >> $GITHUB_PATH
     - name: Build
       working-directory: kotlin
       # we are using docker's version of gradle
@@ -446,16 +432,16 @@ jobs:
 
   build-rust-linux:
     name: Build Rust Linux
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - name: test
       working-directory: tests
       run: bash RustTest.sh
-  
+
   build-rust-windows:
     name: Build Rust Windows
-    runs-on: windows-2019
+    runs-on: windows-2022-64core
     steps:
     - uses: actions/checkout@v3
     - name: test
@@ -464,7 +450,7 @@ jobs:
 
   build-python:
     name: Build Python
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - name: flatc
@@ -476,7 +462,7 @@ jobs:
 
   build-go:
     name: Build Go
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - name: flatc
@@ -488,7 +474,7 @@ jobs:
 
   build-php:
    name: Build PHP
-   runs-on: ubuntu-latest
+   runs-on: ubuntu-24.04
    steps:
    - uses: actions/checkout@v3
    - name: flatc
@@ -502,9 +488,18 @@ jobs:
 
   build-swift:
     name: Build Swift
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        swift: ["5.8", "5.9", "5.10"]
+    # 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-22.04
     steps:
     - uses: actions/checkout@v3
+    - 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: |
@@ -513,20 +508,22 @@ jobs:
 
   build-swift-wasm:
     name: Build Swift Wasm
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     container:
-      image: ghcr.io/swiftwasm/carton:0.15.3
+      image: ghcr.io/swiftwasm/carton:0.20.1
     steps:
-      - uses: actions/checkout@v3
-      - name: Setup Wasmer
-        uses: wasmerio/setup-wasmer@v2
-      - name: Test
-        working-directory: tests/swift/Wasm.tests
-        run: carton test
+       - uses: actions/checkout@v3
+       - uses: bytecodealliance/actions/wasmtime/setup@v1
+       - uses: swiftwasm/setup-swiftwasm@v1
+         with:
+           swift-version: "wasm-6.0.2-RELEASE"
+       - name: Test
+         working-directory: tests/swift/Wasm.tests
+         run: swift run carton test
 
   build-ts:
     name: Build TS
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - name: flatc
@@ -544,7 +541,7 @@ jobs:
 
   build-dart:
     name: Build Dart
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v3
       - uses: dart-lang/setup-dart@v1
@@ -559,7 +556,7 @@ jobs:
 
   build-nim:
     name: Build Nim
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v3
     - name: flatc
@@ -568,7 +565,7 @@ jobs:
     - uses: jiro4989/setup-nim-action@v1
     - name: install library
       working-directory: nim
-      run: nimble -y develop
+      run: nimble -y develop && nimble install
     - name: test
       working-directory: tests/nim
       run: python3 testnim.py
@@ -578,7 +575,7 @@ jobs:
     needs: [build-linux, build-windows, build-mac-intel, build-mac-universal]
     outputs:
       digests: ${{ steps.hash.outputs.digests }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04
     steps:
       - name: Merge results
         id: hash

.github/workflows/label.yml

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

.github/workflows/main.yml

@@ -1,7 +1,7 @@
 name: OSS-Fuzz
 permissions: read-all
 
-on: 
+on:
   pull_request:
     branches:
       - master
@@ -27,7 +27,7 @@ jobs:
        language: c++
        fuzz-seconds: 60
    - name: Upload Crash
-     uses: actions/upload-artifact@v1
+     uses: actions/upload-artifact@v4
      if: failure() && steps.build.outcome == 'success'
      with:
        name: artifacts

.github/workflows/release.yml

@@ -5,23 +5,23 @@ on:
   # For manual tests.
   workflow_dispatch:
   release:
-    types: [created]
+    types: [published]
 
 jobs:
   publish-npm:
     name: Publish NPM
-    runs-on: ubuntu-latest    
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-node@v3
         with:
-          node-version: '16.x'
+          node-version: '20.x'
           registry-url: 'https://registry.npmjs.org'
-          
+
       - run: npm publish
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
-          
+
   publish-pypi:
     name: Publish PyPi
     runs-on: ubuntu-latest
@@ -33,16 +33,16 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           python-version: '3.10'
-      
+
       - name: Install Dependencies
         run: |
           python3 -m pip install --upgrade pip
           python3 -m pip install setuptools wheel twine
-      
+
       - name: Build
         run: |
           python3 setup.py sdist bdist_wheel
-         
+
       - name: Upload to PyPi
         run: |
           python3 -m twine upload dist/*
@@ -60,20 +60,19 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: '6.0.x'
-          
+          dotnet-version: '8.0.x'
       - name: Build
         run: |
           dotnet build Google.FlatBuffers.csproj -c Release
-          
+
       - name: Pack
         run: |
           dotnet pack Google.FlatBuffers.csproj -c Release
-          
+
       - name: Upload to NuGet
         run: |
-          dotnet nuget push .\bin\Release\Google.FlatBuffers.*.nupkg -k ${{ secrets.NUGET_API_KEY }} -s https://api.nuget.org/v3/index.json 
-   
+          dotnet nuget push .\bin\Release\Google.FlatBuffers.*.nupkg -k ${{ secrets.NUGET_API_KEY }} -s https://api.nuget.org/v3/index.json
+
   publish-maven:
     name: Publish Maven
     runs-on: ubuntu-latest
@@ -82,7 +81,7 @@ jobs:
         working-directory: ./java
     steps:
       - uses: actions/checkout@v3
-      
+
       - name: Set up Maven Central Repository
         uses: actions/setup-java@v3
         with:
@@ -94,7 +93,7 @@ jobs:
           server-password: OSSRH_PASSWORD
           gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }}
           gpg-passphrase: MAVEN_GPG_PASSPHRASE # this needs to be an env var
-      
+
       - name: Publish Maven
         run: mvn --batch-mode clean deploy
         env:
@@ -102,5 +101,52 @@ jobs:
           OSSRH_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
           MAVEN_GPG_PASSPHRASE: ${{ secrets.MAVEN_GPG_PASSPHRASE }}
           
-      
-    
+  publish-maven-kotlin:
+    name: Publish Maven - Kotlin
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./kotlin
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Maven Central Repository
+        uses: actions/setup-java@v3
+        with:
+          java-version: '11'
+          distribution: 'adopt'
+          cache: 'maven'
+          server-id: ossrh
+          server-username: OSSRH_USERNAME
+          server-password: OSSRH_PASSWORD
+          gpg-private-key: ${{ secrets.MAVEN_GPG_PRIVATE_KEY }}
+          gpg-passphrase: MAVEN_GPG_PASSPHRASE # this needs to be an env var
+
+      - name: Publish Kotlin Library on Maven
+        run: ./gradlew publishAllPublicationsToSonatypeRepository
+        env:
+          OSSRH_USERNAME: ${{ secrets.OSSRH_USERNAME }}
+          OSSRH_PASSWORD: ${{ secrets.OSSRH_TOKEN }}
+          MAVEN_GPG_PASSPHRASE: ${{ secrets.MAVEN_GPG_PASSPHRASE }}
+
+
+  publish-crates:
+    name: Publish crates.io
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+          override: true
+          
+      - name: Publish Flatbuffers
+        uses: katyo/publish-crates@v2
+        with:
+          path: ./rust/flatbuffers
+          registry-token: ${{ secrets.CARGO_TOKEN }}
+
+      - name: Publish Flexbuffers
+        uses: katyo/publish-crates@v2
+        with:
+          path: ./rust/flexbuffers
+          registry-token: ${{ secrets.CARGO_TOKEN }}

.github/workflows/scorecards.yml

@@ -42,7 +42,7 @@ jobs:
 
       # Upload the results as artifacts (optional).
       - name: "Upload artifact"
-        uses: actions/upload-artifact@6673cd052c4cd6fcf4b4e6e60ea986c889389535 # v3.0.0
+        uses: actions/upload-artifact@v4
         with:
           name: SARIF file
           path: results.sarif

.github/workflows/stale.yml

@@ -28,10 +28,10 @@ jobs:
         days-before-issue-close: 14 # 2 weeks
         exempt-issue-labels: not-stale
         
-        stale-pr-message: 'This pull request is stale because it has been open 3 weeks with no activity. Please comment or label `not-stale`, or this will be closed in 7 days.'
-        close-pr-message: 'This pull request was automatically closed due to no activity for 3 weeks plus the 7 day notice period.'
-        days-before-pr-stale: 21 # 3 weeks
-        days-before-pr-close: 7 # 1 week
+        stale-pr-message: 'This pull request is stale because it has been open 6 months with no activity. Please comment or label `not-stale`, or this will be closed in 14 days.'
+        close-pr-message: 'This pull request was automatically closed due to no activity for 6 months plus the 14 day notice period.'
+        days-before-pr-stale: 182 # 6 months
+        days-before-pr-close: 14 # 2 week
         exempt-pr-labels: not-stale
         exempt-draft-pr: false
 

.gitignore

@@ -151,3 +151,7 @@ flatbuffers.pc
 # https://cmake.org/cmake/help/latest/module/FetchContent.html#variable:FETCHCONTENT_BASE_DIR
 cmake-build-debug/
 _deps/
+**/.gradle/**
+kotlin/**/generated
+MODULE.bazel
+MODULE.bazel.lock

BUILD.bazel

@@ -1,5 +1,3 @@
-load("@aspect_rules_js//npm:defs.bzl", "npm_link_package")
-load("@npm//:defs.bzl", "npm_link_all_packages")
 load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")
 
 licenses(["notice"])
@@ -8,13 +6,6 @@ package(
     default_visibility = ["//visibility:public"],
 )
 
-npm_link_all_packages(name = "node_modules")
-
-npm_link_package(
-    name = "node_modules/flatbuffers",
-    src = "//ts:flatbuffers",
-)
-
 exports_files([
     "LICENSE",
     "tsconfig.json",
@@ -37,11 +28,16 @@ config_setting(
 filegroup(
     name = "distribution",
     srcs = [
+        ".bazelignore",
+        ".npmrc",
         "BUILD.bazel",
         "WORKSPACE",
         "build_defs.bzl",
+        "package.json",
+        "pnpm-lock.yaml",
         "typescript.bzl",
         "//grpc/src/compiler:distribution",
+        "//include/codegen:distribution",
         "//reflection:distribution",
         "//src:distribution",
         "//ts:distribution",

CHANGELOG.md

@@ -4,6 +4,19 @@ 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.
 
+## [24.3.25] (March 25 2024)(https://github.com/google/flatbuffers/releases/tag/v24.3.25)
+
+* Fixed license metadata parsing (#8253)
+* [C++] Allow string_view in `LookUpByKey` in addition to null-terminated c-style strings (#8203)
+
+## [24.3.7] (March 7 2024)(https://github.com/google/flatbuffers/releases/tag/v24.3.7)
+
+* Just to fix some of the CI build issues from the 24.3.6 release.
+
+## [24.3.6] (March 6 2024)(https://github.com/google/flatbuffers/releases/tag/v24.3.6)
+
+* Fix typescript object API to allow 0 values for null-default scalars (#7864)
+
 ## [23.5.26 (May 26 2023)](https://github.com/google/flatbuffers/releases/tag/v23.5.26)
 
 * Mostly bug fixing for 64-bit support

CMake/Version.cmake

@@ -1,6 +1,6 @@
-set(VERSION_MAJOR 23)
-set(VERSION_MINOR 5)
-set(VERSION_PATCH 26)
+set(VERSION_MAJOR 24)
+set(VERSION_MINOR 12)
+set(VERSION_PATCH 23)
 set(VERSION_COMMIT 0)
 
 if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")
@@ -29,7 +29,7 @@ if(EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/.git")
         message(WARNING "\"${GIT_DESCRIBE_DIRTY}\" does not match pattern v<major>.<minor>.<patch>-<commit>")
       endif()
     else()
-      message(WARNING "git describe failed with exit code: ${GIT_DESCRIBE_RESULT}")
+      message(WARNING "git describe failed with exit code: ${GIT_DESCRIBE_RESULT}\nMake sure you cloned with tags or run 'git fetch --tags'.")
     endif()
   else()
     message(WARNING "git is not found")

CMakeLists.txt

@@ -160,6 +160,7 @@ set(FlatBuffers_Compiler_SRCS
   src/idl_gen_csharp.cpp
   src/idl_gen_dart.cpp
   src/idl_gen_kotlin.cpp
+  src/idl_gen_kotlin_kmp.cpp
   src/idl_gen_go.cpp
   src/idl_gen_java.cpp
   src/idl_gen_ts.cpp
@@ -182,6 +183,10 @@ set(FlatBuffers_Compiler_SRCS
   src/bfbs_gen_lua.h
   src/bfbs_gen_nim.h
   src/bfbs_namer.h
+  include/codegen/idl_namer.h
+  include/codegen/namer.h
+  include/codegen/python.h
+  include/codegen/python.cc
   include/flatbuffers/code_generators.h
   src/binary_annotator.h
   src/binary_annotator.cpp
@@ -496,7 +501,7 @@ function(compile_schema SRC_FBS OPT OUT_GEN_FILE)
       ${OPT}
       -o "${SRC_FBS_DIR}"
       "${CMAKE_CURRENT_SOURCE_DIR}/${SRC_FBS}"
-    DEPENDS flatc
+    DEPENDS flatc ${SRC_FBS}
     COMMENT "flatc generation: `${SRC_FBS}` -> `${GEN_HEADER}`"
     )
   set(${OUT_GEN_FILE} ${GEN_HEADER} PARENT_SCOPE)
@@ -531,16 +536,17 @@ if(FLATBUFFERS_BUILD_TESTS)
   # The flattest target needs some generated files
   SET(FLATC_OPT --cpp --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 "${FLATC_OPT_COMP}")
-  compile_schema_for_test(tests/arrays_test.fbs "${FLATC_OPT_COMP};--scoped-enums")
+  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 "${FLATC_OPT}")
   compile_schema_for_test(tests/key_field/key_field_sample.fbs "${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_COMP}")
+  compile_schema_for_test(tests/union_underlying_type_test.fbs "${FLATC_OPT_SCOPED_ENUMS}")
 
   if(FLATBUFFERS_CODE_SANITIZE)
     add_fsanitize_to_target(flattests ${FLATBUFFERS_CODE_SANITIZE})
@@ -554,7 +560,11 @@ if(FLATBUFFERS_BUILD_TESTS)
 
   # Add a library so there is a single target that the generated samples can 
   # link too.
-  add_library(flatsample INTERFACE)
+  if(MSVC OR ${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.20.0")
+    add_library(flatsample INTERFACE)
+  else()
+    add_library(flatsample STATIC)
+  endif()
 
   # Since flatsample has no sources, we have to explicitly set the linker lang.
   set_target_properties(flatsample PROPERTIES LINKER_LANGUAGE CXX)
@@ -592,7 +602,7 @@ if(FLATBUFFERS_BUILD_GRPCTEST)
   find_package(protobuf CONFIG REQUIRED)
   find_package(gRPC CONFIG REQUIRED)
   add_executable(grpctest ${FlatBuffers_GRPCTest_SRCS})
-  target_link_libraries(grpctext
+  target_link_libraries(grpctest
     PRIVATE
       $<BUILD_INTERFACE:ProjectConfig>
       gRPC::grpc++_unsecure

FlatBuffers.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'FlatBuffers'
-  s.version          = '23.5.26'
+  s.version          = '24.12.23'
   s.summary          = 'FlatBuffers: Memory Efficient Serialization Library'
 
   s.description      = "FlatBuffers is a cross platform serialization library architected for
@@ -10,12 +10,15 @@ Pod::Spec.new do |s|
 
   s.homepage         = 'https://github.com/google/flatbuffers'
   s.license          = { :type => 'Apache2.0', :file => 'LICENSE' }
-  s.author           = { 'mustii' => 'mustii@mmk.one' }
-  s.source           = { :git => 'https://github.com/google/flatbuffers.git', :tag => s.version.to_s, :submodules => true }
+  s.author           = { 'mustii' => 'me@mustiikhalil.se' }
+  s.source           = { :git => 'https://github.com/google/flatbuffers.git', :tag => "v" + s.version.to_s, :submodules => true }
 
   s.ios.deployment_target = '11.0'
   s.osx.deployment_target = '10.14'
 
   s.swift_version = '5.0'
   s.source_files = 'swift/Sources/Flatbuffers/*.swift'
+  s.pod_target_xcconfig = {
+    'BUILD_LIBRARY_FOR_DISTRIBUTION' => 'YES'
+  }
 end

MODULE.bazel

@@ -0,0 +1,6 @@
+###############################################################################
+# Bazel now uses Bzlmod by default to manage external dependencies.
+# Please consider migrating your external dependencies from WORKSPACE to MODULE.bazel.
+#
+# For more details, please check https://github.com/bazelbuild/bazel/issues/18958
+###############################################################################

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.2
+// swift-tools-version:5.8
 /*
  * Copyright 2020 Google Inc. All rights reserved.
  *
@@ -32,6 +32,5 @@ let package = Package(
     .target(
       name: "FlatBuffers",
       dependencies: [],
-      path: "swift/Sources",
-      exclude: ["Documentation.docc/Resources/code/swift"]),
+      path: "swift/Sources"),
   ])

Package@swift-5.5.swift

@@ -1,37 +0,0 @@
-// swift-tools-version:5.5
-/*
- * Copyright 2020 Google Inc. All rights reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import PackageDescription
-
-let package = Package(
-  name: "FlatBuffers",
-  platforms: [
-    .iOS(.v11),
-    .macOS(.v10_14),
-  ],
-  products: [
-    .library(
-      name: "FlatBuffers",
-      targets: ["FlatBuffers"]),
-  ],
-  targets: [
-    .target(
-      name: "FlatBuffers",
-      dependencies: [],
-      path: "swift/Sources"),
-  ])
-

README.md

@@ -18,7 +18,7 @@ maximum memory efficiency. It allows you to directly access serialized data with
 
 1. Build the compiler for flatbuffers (`flatc`)
 
-    Use `cmake` to create the build files for your platform and then perform the compliation (Linux example).
+    Use `cmake` to create the build files for your platform and then perform the compilation (Linux example).
 
     ```
     cmake -G "Unix Makefiles"
@@ -98,10 +98,7 @@ FlatBuffers does not follow traditional SemVer versioning (see [rationale](https
 
 ## Community
 
-* [FlatBuffers Google Group][] to discuss FlatBuffers with other developers and users.
 * [Discord Server](https:///discord.gg/6qgKs3R)
-* [Gitter](https://gitter.im/google/flatbuffers)
-
 
 ## Security
 

WORKSPACE

@@ -4,13 +4,41 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive", "http_file"
 
 http_archive(
     name = "platforms",
-    sha256 = "379113459b0feaf6bfbb584a91874c065078aa673222846ac765f86661c27407",
+    sha256 = "3a561c99e7bdbe9173aa653fd579fe849f1d8d67395780ab4770b1f381431d51",
     urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/platforms/releases/download/0.0.5/platforms-0.0.5.tar.gz",
-        "https://github.com/bazelbuild/platforms/releases/download/0.0.5/platforms-0.0.5.tar.gz",
+        "https://mirror.bazel.build/github.com/bazelbuild/platforms/releases/download/0.0.7/platforms-0.0.7.tar.gz",
+        "https://github.com/bazelbuild/platforms/releases/download/0.0.7/platforms-0.0.7.tar.gz",
     ],
 )
 
+# Import our own version of skylib before other rule sets (e.g. rules_swift)
+# has a chance to import an old version.
+http_archive(
+    name = "bazel_skylib",
+    sha256 = "66ffd9315665bfaafc96b52278f57c7e2dd09f5ede279ea6d39b2be471e7e3aa",
+    urls = [
+        "https://mirror.bazel.build/github.com/bazelbuild/bazel-skylib/releases/download/1.4.2/bazel-skylib-1.4.2.tar.gz",
+        "https://github.com/bazelbuild/bazel-skylib/releases/download/1.4.2/bazel-skylib-1.4.2.tar.gz",
+    ],
+)
+
+load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
+
+bazel_skylib_workspace()
+
+http_archive(
+    name = "build_bazel_rules_apple",
+    sha256 = "34c41bfb59cdaea29ac2df5a2fa79e5add609c71bb303b2ebb10985f93fa20e7",
+    url = "https://github.com/bazelbuild/rules_apple/releases/download/3.1.1/rules_apple.3.1.1.tar.gz",
+)
+
+load(
+    "@build_bazel_rules_apple//apple:repositories.bzl",
+    "apple_rules_dependencies",
+)
+
+apple_rules_dependencies()
+
 http_archive(
     name = "build_bazel_rules_swift",
     sha256 = "a2fd565e527f83fb3f9eb07eb9737240e668c9242d3bc318712efa54a7deda97",
@@ -33,10 +61,10 @@ swift_rules_extra_dependencies()
 
 http_archive(
     name = "io_bazel_rules_go",
-    sha256 = "ae013bf35bd23234d1dea46b079f1e05ba74ac0321423830119d3e787ec73483",
+    sha256 = "278b7ff5a826f3dc10f04feaf0b70d48b68748ccd512d7f98bf442077f043fe3",
     urls = [
-        "https://mirror.bazel.build/github.com/bazelbuild/rules_go/releases/download/v0.36.0/rules_go-v0.36.0.zip",
-        "https://github.com/bazelbuild/rules_go/releases/download/v0.36.0/rules_go-v0.36.0.zip",
+        "https://mirror.bazel.build/github.com/bazelbuild/rules_go/releases/download/v0.41.0/rules_go-v0.41.0.zip",
+        "https://github.com/bazelbuild/rules_go/releases/download/v0.41.0/rules_go-v0.41.0.zip",
     ],
 )
 
@@ -55,6 +83,28 @@ http_archive(
     ],
 )
 
+#### Building boring ssl
+# Fetching boringssl within the flatbuffers repository, to patch the issue
+# of not being able to upgrade to Xcode 14.3 due to buildkite throwing errors
+# which was patched in the following below.
+# https://github.com/google/flatbuffers/commit/67eb95de9281087ccbba9aafd6e8ab1958d12045
+# The patch was copied from the following comment on the same issue within tensorflow
+# and fixed to adapt the already existing patch for boringssl.
+# https://github.com/tensorflow/tensorflow/issues/60191#issuecomment-1496073147
+http_archive(
+    name = "boringssl",
+    patch_args = ["-p1"],
+    patches = ["//grpc:boringssl.patch"],
+    # Use github mirror instead of https://boringssl.googlesource.com/boringssl
+    # to obtain a boringssl archive with consistent sha256
+    sha256 = "534fa658bd845fd974b50b10f444d392dfd0d93768c4a51b61263fd37d851c40",
+    strip_prefix = "boringssl-b9232f9e27e5668bc0414879dcdedb2a59ea75f2",
+    urls = [
+        "https://storage.googleapis.com/grpc-bazel-mirror/github.com/google/boringssl/archive/b9232f9e27e5668bc0414879dcdedb2a59ea75f2.tar.gz",
+        "https://github.com/google/boringssl/archive/b9232f9e27e5668bc0414879dcdedb2a59ea75f2.tar.gz",
+    ],
+)
+
 ##### GRPC
 _GRPC_VERSION = "1.49.0"  # https://github.com/grpc/grpc/releases/tag/v1.48.0
 
@@ -79,24 +129,24 @@ grpc_extra_deps()
 
 http_archive(
     name = "aspect_rules_js",
-    sha256 = "124ed29fb0b3d0cba5b44f8f8e07897cf61b34e35e33b1f83d1a943dfd91b193",
-    strip_prefix = "rules_js-1.24.0",
-    url = "https://github.com/aspect-build/rules_js/releases/download/v1.24.0/rules_js-v1.24.0.tar.gz",
+    sha256 = "76a04ef2120ee00231d85d1ff012ede23963733339ad8db81f590791a031f643",
+    strip_prefix = "rules_js-1.34.1",
+    url = "https://github.com/aspect-build/rules_js/releases/download/v1.34.1/rules_js-v1.34.1.tar.gz",
 )
 
 load("@aspect_rules_js//js:repositories.bzl", "rules_js_dependencies")
 
 rules_js_dependencies()
 
-load("@aspect_rules_js//npm:npm_import.bzl", "npm_translate_lock", "pnpm_repository")
+load("@aspect_rules_js//npm:npm_import.bzl", "pnpm_repository")
 
 pnpm_repository(name = "pnpm")
 
 http_archive(
     name = "aspect_rules_ts",
-    sha256 = "8eb25d1fdafc0836f5778d33fb8eaac37c64176481d67872b54b0a05de5be5c0",
-    strip_prefix = "rules_ts-1.3.3",
-    url = "https://github.com/aspect-build/rules_ts/releases/download/v1.3.3/rules_ts-v1.3.3.tar.gz",
+    sha256 = "4c3f34fff9f96ffc9c26635d8235a32a23a6797324486c7d23c1dfa477e8b451",
+    strip_prefix = "rules_ts-1.4.5",
+    url = "https://github.com/aspect-build/rules_ts/releases/download/v1.4.5/rules_ts-v1.4.5.tar.gz",
 )
 
 load("@aspect_rules_ts//ts:repositories.bzl", "rules_ts_dependencies")
@@ -104,8 +154,8 @@ load("@aspect_rules_ts//ts:repositories.bzl", "rules_ts_dependencies")
 rules_ts_dependencies(
     # Since rules_ts doesn't always have the newest integrity hashes, we
     # compute it manually here.
-    #   $ curl --silent https://registry.npmjs.org/typescript/5.0.4 | jq ._integrity
-    ts_integrity = "sha512-cW9T5W9xY37cc+jfEnaUvX91foxtHkza3Nw3wkoF4sSlKn0MONdkdEndig/qPBWXNkmplh3NzayQzCiHM4/hqw==",
+    #   $ curl --silent https://registry.npmjs.org/typescript/5.3.3 | jq ._integrity
+    ts_integrity = "sha512-pXWcraxM0uxAS+tN0AG/BF2TyqmHO014Z070UsJ+pFvYuRSq8KH8DmWpnbXe0pEPDHXZV3FcAbJkijJ5oNEnWw==",
     ts_version_from = "//:package.json",
 )
 
@@ -116,41 +166,37 @@ nodejs_register_toolchains(
     node_version = DEFAULT_NODE_VERSION,
 )
 
-npm_translate_lock(
-    name = "npm",
-    npmrc = "//:.npmrc",
-    pnpm_lock = "//:pnpm-lock.yaml",
-    # Set this to True when the lock file needs to be updated, commit the
-    # changes, then set to False again.
-    update_pnpm_lock = False,
-    verify_node_modules_ignored = "//:.bazelignore",
+load("@com_github_google_flatbuffers//ts:repositories.bzl", "flatbuffers_npm")
+
+flatbuffers_npm(
+    name = "flatbuffers_npm",
 )
 
-load("@npm//:repositories.bzl", "npm_repositories")
+load("@flatbuffers_npm//:repositories.bzl", "npm_repositories")
 
 npm_repositories()
 
 http_archive(
     name = "aspect_rules_esbuild",
-    sha256 = "2ea31bd97181a315e048be693ddc2815fddda0f3a12ca7b7cc6e91e80f31bac7",
-    strip_prefix = "rules_esbuild-0.14.4",
-    url = "https://github.com/aspect-build/rules_esbuild/releases/download/v0.14.4/rules_esbuild-v0.14.4.tar.gz",
+    sha256 = "098e38e5ee868c14a6484ba263b79e57d48afacfc361ba30137c757a9c4716d6",
+    strip_prefix = "rules_esbuild-0.15.0",
+    url = "https://github.com/aspect-build/rules_esbuild/releases/download/v0.15.0/rules_esbuild-v0.15.0.tar.gz",
 )
 
 # Register a toolchain containing esbuild npm package and native bindings
-load("@aspect_rules_esbuild//esbuild:repositories.bzl", "LATEST_VERSION", "esbuild_register_toolchains")
+load("@aspect_rules_esbuild//esbuild:repositories.bzl", "LATEST_ESBUILD_VERSION", "esbuild_register_toolchains")
 
 esbuild_register_toolchains(
     name = "esbuild",
-    esbuild_version = LATEST_VERSION,
+    esbuild_version = LATEST_ESBUILD_VERSION,
 )
 
 http_file(
     name = "bazel_linux_x86_64",
     downloaded_file_path = "bazel",
     executable = True,
-    sha256 = "e89747d63443e225b140d7d37ded952dacea73aaed896bca01ccd745827c6289",
+    sha256 = "e78fc3394deae5408d6f49a15c7b1e615901969ecf6e50d55ef899996b0b8458",
     urls = [
-        "https://github.com/bazelbuild/bazel/releases/download/6.1.2/bazel-6.1.2-linux-x86_64",
+        "https://github.com/bazelbuild/bazel/releases/download/6.3.2/bazel-6.3.2-linux-x86_64",
     ],
 )

android/.project

@@ -10,7 +10,7 @@
 	</natures>
 	<filteredResources>
 		<filter>
-			<id>1677235311958</id>
+			<id>1672434305228</id>
 			<name></name>
 			<type>30</type>
 			<matcher>

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

@@ -8,9 +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 == 23 &&
-              FLATBUFFERS_VERSION_MINOR == 1 &&
-              FLATBUFFERS_VERSION_REVISION == 21,
+static_assert(FLATBUFFERS_VERSION_MAJOR == 24 &&
+              FLATBUFFERS_VERSION_MINOR == 12 &&
+              FLATBUFFERS_VERSION_REVISION == 23,
              "Non-compatible flatbuffers version included");
 
 namespace com {

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

@@ -57,7 +57,7 @@ class Animal : Table() {
             return if(o != 0) bb.getShort(o + bb_pos).toUShort() else 0u
         }
     companion object {
-        fun validateVersion() = Constants.FLATBUFFERS_23_5_26()
+        fun validateVersion() = Constants.FLATBUFFERS_24_12_23()
         fun getRootAsAnimal(_bb: ByteBuffer): Animal = getRootAsAnimal(_bb, Animal())
         fun getRootAsAnimal(_bb: ByteBuffer, obj: Animal): Animal {
             _bb.order(ByteOrder.LITTLE_ENDIAN)

benchmarks/cpp/flatbuffers/bench_generated.h

@@ -8,9 +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 == 2 &&
-              FLATBUFFERS_VERSION_MINOR == 0 &&
-              FLATBUFFERS_VERSION_REVISION == 6,
+static_assert(FLATBUFFERS_VERSION_MAJOR == 24 &&
+              FLATBUFFERS_VERSION_MINOR == 12 &&
+              FLATBUFFERS_VERSION_REVISION == 23,
              "Non-compatible flatbuffers version included");
 
 namespace benchmarks_flatbuffers {

benchmarks/swift/Benchmarks/FlatbuffersBenchmarks/FlatbuffersBenchmarks.swift

@@ -0,0 +1,201 @@
+/*
+ * Copyright 2024 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import Benchmark
+import CoreFoundation
+import FlatBuffers
+
+@usableFromInline
+struct AA: NativeStruct {
+  public init(a: Double, b: Double) {
+    self.a = a
+    self.b = b
+  }
+  var a: Double
+  var b: Double
+}
+
+let benchmarks = {
+  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()
+  let str100 = (0...99).map { _ -> String in "x" }.joined()
+  let array: [AA] = [
+    AA(a: 2.4, b: 2.4),
+    AA(a: 2.4, b: 2.4),
+    AA(a: 2.4, b: 2.4),
+    AA(a: 2.4, b: 2.4),
+    AA(a: 2.4, b: 2.4),
+  ]
+
+  let metrics: [BenchmarkMetric] = [
+    .cpuTotal,
+    .wallClock,
+    .mallocCountTotal,
+    .releaseCount,
+    .peakMemoryResident,
+  ]
+  let maxIterations = 1_000_000
+  let maxDuration: Duration = .seconds(3)
+  let singleConfiguration: Benchmark.Configuration = .init(
+    metrics: metrics,
+    warmupIterations: 1,
+    scalingFactor: .one,
+    maxDuration: maxDuration,
+    maxIterations: maxIterations)
+  let kiloConfiguration: Benchmark.Configuration = .init(
+    metrics: metrics,
+    warmupIterations: 1,
+    scalingFactor: .kilo,
+    maxDuration: maxDuration,
+    maxIterations: maxIterations)
+  let megaConfiguration: Benchmark.Configuration = .init(
+    metrics: metrics,
+    warmupIterations: 1,
+    scalingFactor: .mega,
+    maxDuration: maxDuration,
+    maxIterations: maxIterations)
+
+  Benchmark.defaultConfiguration = megaConfiguration
+
+  Benchmark("Allocating 1GB", configuration: singleConfiguration) { benchmark in
+    for _ in benchmark.scaledIterations {
+      blackHole(FlatBufferBuilder(initialSize: 1_024_000_000))
+    }
+  }
+
+  Benchmark("Clearing 1GB", configuration: singleConfiguration) { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1_024_000_000)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.clear())
+    }
+  }
+
+  Benchmark("Strings 10") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.create(string: str10))
+    }
+  }
+
+  Benchmark("Strings 100") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.create(string: str100))
+    }
+  }
+
+  Benchmark("Vector 1 Bytes") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.createVector(bytes: bytes))
+    }
+  }
+
+  Benchmark("Vector 1 Ints") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      blackHole(fb.createVector(ints))
+    }
+  }
+
+  Benchmark("Vector 100 Ints") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    benchmark.startMeasurement()
+    for i in benchmark.scaledIterations {
+      blackHole(fb.createVector(ints))
+    }
+  }
+
+  Benchmark("Vector 100 Bytes") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    benchmark.startMeasurement()
+    for i in benchmark.scaledIterations {
+      blackHole(fb.createVector(bytes))
+    }
+  }
+
+  Benchmark("Vector 100 ContiguousBytes") { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1<<20)
+    benchmark.startMeasurement()
+    for i in benchmark.scaledIterations {
+      blackHole(fb.createVector(bytes: bytes))
+    }
+  }
+
+  Benchmark(
+    "FlatBufferBuilder Add",
+    configuration: kiloConfiguration)
+  { benchmark in
+    var fb = FlatBufferBuilder(initialSize: 1024 * 1024 * 32)
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let off = fb.create(string: "T")
+      let s = fb.startTable(with: 4)
+      fb.add(element: 3.2, def: 0, at: 2)
+      fb.add(element: 4.2, def: 0, at: 4)
+      fb.add(element: 5.2, def: 0, at: 6)
+      fb.add(offset: off, at: 8)
+      blackHole(fb.endTable(at: s))
+    }
+  }
+
+  Benchmark("Structs") { benchmark in
+    let rawSize = ((16 * 5) * benchmark.scaledIterations.count) / 1024
+    var fb = FlatBufferBuilder(initialSize: Int32(rawSize * 1600))
+    var offsets: [Offset] = []
+
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let vector = fb.createVector(
+        ofStructs: array)
+      let start = fb.startTable(with: 1)
+      fb.add(offset: vector, at: 4)
+      offsets.append(Offset(offset: fb.endTable(at: start)))
+    }
+
+    let vector = fb.createVector(ofOffsets: offsets)
+    let start = fb.startTable(with: 1)
+    fb.add(offset: vector, at: 4)
+    let root = Offset(offset: fb.endTable(at: start))
+    fb.finish(offset: root)
+  }
+
+  Benchmark("Vector of Offsets") { benchmark in
+    let rawSize = ((16 * 5) * benchmark.scaledIterations.count) / 1024
+    var fb = FlatBufferBuilder(initialSize: Int32(rawSize * 1600))
+    benchmark.startMeasurement()
+    for _ in benchmark.scaledIterations {
+      let offsets = [
+        fb.create(string: "T"),
+        fb.create(string: "2"),
+        fb.create(string: "3"),
+      ]
+      let off = fb.createVector(ofOffsets: [
+        fb.createVector(ofOffsets: offsets),
+        fb.createVector(ofOffsets: offsets),
+      ])
+      let s = fb.startTable(with: 2)
+      fb.add(offset: off, at: 2)
+      blackHole(fb.endTable(at: s))
+    }
+  }
+}

benchmarks/swift/Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:5.1
+// swift-tools-version:5.8
 /*
  * Copyright 2020 Google Inc. All rights reserved.
  *
@@ -20,15 +20,23 @@ import PackageDescription
 let package = Package(
   name: "benchmarks",
   platforms: [
-    .macOS(.v10_14),
+    .macOS(.v13),
   ],
   dependencies: [
-    .package(path: "../../.."),
-    .package(url: "https://github.com/google/swift-benchmark", from: "0.1.0"),
+    .package(path: "../.."),
+    .package(
+      url: "https://github.com/ordo-one/package-benchmark",
+      from: "1.27.0"),
   ],
   targets: [
-    .target(
-      name: "benchmarks",
-      dependencies: ["FlatBuffers",
-                     .product(name: "Benchmark", package: "swift-benchmark")]),
+    .executableTarget(
+      name: "FlatbuffersBenchmarks",
+      dependencies: [
+        .product(name: "FlatBuffers", package: "flatbuffers"),
+        .product(name: "Benchmark", package: "package-benchmark"),
+      ],
+      path: "Benchmarks/FlatbuffersBenchmarks",
+      plugins: [
+        .plugin(name: "BenchmarkPlugin", package: "package-benchmark"),
+      ]),
   ])

benchmarks/swift/README.md

@@ -0,0 +1,9 @@
+# Benchmarks
+
+To open the benchmarks in xcode use:
+
+`open --env BENCHMARK_DISABLE_JEMALLOC=true Package.swift`
+
+or running them directly within terminal using:
+
+`swift package benchmark`

build_defs.bzl

@@ -87,6 +87,7 @@ def flatbuffer_library_public(
     optionally a Fileset([reflection_name]) with all generated reflection
     binaries.
     """
+    reflection_include_paths = include_paths
     if include_paths == None:
         include_paths = default_include_paths(flatc_path)
     include_paths_cmd = ["-I %s" % (s) for s in include_paths]
@@ -124,13 +125,16 @@ def flatbuffer_library_public(
         **kwargs
     )
     if reflection_name:
+        if reflection_include_paths == None:
+            reflection_include_paths = default_include_paths(TRUE_FLATC_PATH)
+        reflection_include_paths_cmd = ["-I %s" % (s) for s in reflection_include_paths]
         reflection_genrule_cmd = " ".join([
             "SRCS=($(SRCS));",
             "for f in $${SRCS[@]:0:%s}; do" % len(srcs),
             "$(location %s)" % (TRUE_FLATC_PATH),
             "-b --schema",
             " ".join(flatc_args),
-            " ".join(include_paths_cmd),
+            " ".join(reflection_include_paths_cmd),
             language_flag,
             output_directory,
             "$$f;",

dart/CHANGELOG.md

@@ -1,3 +1,17 @@
+# Changelog
+
+## 23.5.26
+
+- omit type annotationes for local variables (#7067, #7069, #7070)
+- remove BSD 3-clause license (#7073)
+- correctly parse lists of enums (#7157)
+- align naming conventions for generated code (#7187)
+- add `putBool` to fix errors when serializing structs with booleans (#7359)
+- fix handling of +/-inf defaults in codegen (#7588)
+- fix import issues in generated code (#7621)
+- Fix incorrect storage of floats as ints in some cases (#7703)
+- add final modifiers to the library implementation (#7943)
+
 ## 2.0.5
 
 - switch to null safety (#6696)

dart/README.md

@@ -3,7 +3,7 @@
 This package is used to read and write [FlatBuffers](https://google.github.io/flatbuffers/).
 
 Most consumers will want to use the [`flatc` - FlatBuffer compiler](https://github.com/google/flatbuffers) binary for your platform.
-You can find it in the `generator/{Platform}` directory of the [released package archive](https://pub.dev/packages/flat_buffers/versions/2.0.5.tar.gz).
+You can download the flatc version matching your dart package version from [GitHub releases](https://github.com/google/flatbuffers/releases).
 
 The FlatBuffer compiler `flatc` reads a FlatBuffers IDL schema and generates Dart code.
 The generated classes can be used to read or write binary data/files that are interoperable with
@@ -13,11 +13,3 @@ examples folder.
 For more details and documentation, head over to the official site and read the
 [Tutorial](https://google.github.io/flatbuffers/flatbuffers_guide_tutorial.html) and how to
 [use FlatBuffers in Dart](https://google.github.io/flatbuffers/flatbuffers_guide_use_dart.html).
-
-## Dart 2.0 notes
-Version 2.0.5 ships with it's own custom build of `flatc` because this is an extraordinary release to catch-up
-with FlatBuffers for other platforms. This generator can only generate dart code (to avoid generating code for other platforms which isn't released yet).
-On the other hand, the generated code still produces standard binary FlatBuffers compatible with other languages.
-In other words: only `flatc --dart ...` works with this generator, but your app will be able to produce and read standard binary (`Uint8List`) FlatBuffers that are fully compotible with other languages supporting FlatBuffers (e.g. Java, C++, ...).
-
-In the future a common `flatc` binary for all platforms would be shipped through GitHub release page instead.

dart/lib/flat_buffers.dart

@@ -386,7 +386,7 @@ class Builder {
   /// Updates the [offset] pointer.  This method is intended for use when writing structs to the buffer.
   void putFloat64(double value) {
     _prepare(_sizeofFloat64, 1);
-    _setFloat32AtTail(_tail, value);
+    _setFloat64AtTail(_tail, value);
   }
 
   /// Writes a Float32 to the tail of the buffer after preparing space for it.

dart/pubspec.yaml

@@ -1,15 +1,14 @@
 name: flat_buffers
-version: 23.5.26
+version: 24.12.23
 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
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: '>=2.17.0 <4.0.0'
 
 dev_dependencies:
   test: ^1.17.7
   test_reflective_loader: ^0.2.0
   path: ^1.8.0
   lints: ^1.0.1
-

dart/test/bool_structs_generated.dart

@@ -1,5 +1,5 @@
 // automatically generated by the FlatBuffers compiler, do not modify
-// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable
+// 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;

dart/test/enums_generated.dart

@@ -1,43 +1,33 @@
 // automatically generated by the FlatBuffers compiler, do not modify
-// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable
+// 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;
 
 
-class OptionsEnum {
+enum OptionsEnum {
+  A(1),
+  B(2),
+  C(3);
+
   final int value;
-  const OptionsEnum._(this.value);
+  const OptionsEnum(this.value);
 
   factory OptionsEnum.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-        throw StateError('Invalid value $value for bit flag enum OptionsEnum');
+    switch (value) {
+      case 1: return OptionsEnum.A;
+      case 2: return OptionsEnum.B;
+      case 3: return OptionsEnum.C;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static OptionsEnum? _createOrNull(int? value) => 
+  static OptionsEnum? _createOrNull(int? value) =>
       value == null ? null : OptionsEnum.fromValue(value);
 
   static const int minValue = 1;
   static const int maxValue = 3;
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const OptionsEnum A = OptionsEnum._(1);
-  static const OptionsEnum B = OptionsEnum._(2);
-  static const OptionsEnum C = OptionsEnum._(3);
-  static const Map<int, OptionsEnum> values = {
-    1: A,
-    2: B,
-    3: C};
-
   static const fb.Reader<OptionsEnum> reader = _OptionsEnumReader();
-
-  @override
-  String toString() {
-    return 'OptionsEnum{value: $value}';
-  }
 }
 
 class _OptionsEnumReader extends fb.Reader<OptionsEnum> {

dart/test/flat_buffers_test.dart

@@ -9,9 +9,8 @@ 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 './list_of_enums_generated.dart' as example3;
+import 'enums_generated.dart' as example3;
 import './bool_structs_generated.dart' as example4;
-import './keyword_test_keyword_test_generated.dart' as keyword_test;
 
 main() {
   defineReflectiveSuite(() {
@@ -62,92 +61,91 @@ class CheckOtherLangaugesData {
 
     // this will fail if accessing any field fails.
     expect(
-      mon.toString(),
-      'Monster{'
-      'pos: Vec3{x: 1.0, y: 2.0, z: 3.0, test1: 3.0, test2: Color{value: 2}, test3: Test{a: 5, b: 6}}, '
-      'mana: 150, hp: 80, name: MyMonster, inventory: [0, 1, 2, 3, 4], '
-      'color: Color{value: 8}, testType: AnyTypeId{value: 1}, '
-      'test: Monster{pos: null, mana: 150, hp: 100, name: Fred, '
-      'inventory: null, color: Color{value: 8}, testType: null, '
-      'test: null, test4: null, testarrayofstring: null, '
-      'testarrayoftables: null, enemy: null, testnestedflatbuffer: null, '
-      'testempty: null, testbool: false, testhashs32Fnv1: 0, '
-      'testhashu32Fnv1: 0, testhashs64Fnv1: 0, testhashu64Fnv1: 0, '
-      'testhashs32Fnv1a: 0, testhashu32Fnv1a: 0, testhashs64Fnv1a: 0, '
-      'testhashu64Fnv1a: 0, testarrayofbools: null, testf: 3.14159, '
-      'testf2: 3.0, testf3: 0.0, testarrayofstring2: null, '
-      'testarrayofsortedstruct: null, flex: null, test5: null, '
-      'vectorOfLongs: null, vectorOfDoubles: null, parentNamespaceTest: null, '
-      'vectorOfReferrables: null, singleWeakReference: 0, '
-      'vectorOfWeakReferences: null, vectorOfStrongReferrables: null, '
-      'coOwningReference: 0, vectorOfCoOwningReferences: null, '
-      'nonOwningReference: 0, vectorOfNonOwningReferences: null, '
-      'anyUniqueType: null, anyUnique: null, anyAmbiguousType: null, '
-      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race{value: -1}, '
-      'testrequirednestedflatbuffer: null, scalarKeySortedTables: null, '
-      'nativeInline: null, '
-      'longEnumNonEnumDefault: LongEnum{value: 0}, '
-      'longEnumNormalDefault: LongEnum{value: 2}, nanDefault: NaN, '
-      'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
-      'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
-      '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}, '
-      'test4: [Test{a: 10, b: 20}, Test{a: 30, b: 40}], '
-      'testarrayofstring: [test1, test2], testarrayoftables: null, '
-      'enemy: Monster{pos: null, mana: 150, hp: 100, name: Fred, '
-      'inventory: null, color: Color{value: 8}, testType: null, '
-      'test: null, test4: null, testarrayofstring: null, '
-      'testarrayoftables: null, enemy: null, testnestedflatbuffer: null, '
-      'testempty: null, testbool: false, testhashs32Fnv1: 0, '
-      'testhashu32Fnv1: 0, testhashs64Fnv1: 0, testhashu64Fnv1: 0, '
-      'testhashs32Fnv1a: 0, testhashu32Fnv1a: 0, testhashs64Fnv1a: 0, '
-      'testhashu64Fnv1a: 0, testarrayofbools: null, testf: 3.14159, '
-      'testf2: 3.0, testf3: 0.0, testarrayofstring2: null, '
-      'testarrayofsortedstruct: null, flex: null, test5: null, '
-      'vectorOfLongs: null, vectorOfDoubles: null, parentNamespaceTest: null, '
-      'vectorOfReferrables: null, singleWeakReference: 0, '
-      'vectorOfWeakReferences: null, vectorOfStrongReferrables: null, '
-      'coOwningReference: 0, vectorOfCoOwningReferences: null, '
-      'nonOwningReference: 0, vectorOfNonOwningReferences: null, '
-      'anyUniqueType: null, anyUnique: null, anyAmbiguousType: null, '
-      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race{value: -1}, '
-      'testrequirednestedflatbuffer: null, scalarKeySortedTables: null, '
-      'nativeInline: null, '
-      'longEnumNonEnumDefault: LongEnum{value: 0}, '
-      'longEnumNormalDefault: LongEnum{value: 2}, nanDefault: NaN, '
-      'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
-      'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
-      '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}, '
-      'testnestedflatbuffer: null, testempty: null, testbool: true, '
-      'testhashs32Fnv1: -579221183, testhashu32Fnv1: 3715746113, '
-      'testhashs64Fnv1: 7930699090847568257, '
-      'testhashu64Fnv1: 7930699090847568257, '
-      'testhashs32Fnv1a: -1904106383, testhashu32Fnv1a: 2390860913, '
-      'testhashs64Fnv1a: 4898026182817603057, '
-      'testhashu64Fnv1a: 4898026182817603057, '
-      'testarrayofbools: [true, false, true], testf: 3.14159, testf2: 3.0, '
-      'testf3: 0.0, testarrayofstring2: null, testarrayofsortedstruct: ['
-      'Ability{id: 0, distance: 45}, Ability{id: 1, distance: 21}, '
-      'Ability{id: 5, distance: 12}], '
-      'flex: null, test5: [Test{a: 10, b: 20}, Test{a: 30, b: 40}], '
-      'vectorOfLongs: [1, 100, 10000, 1000000, 100000000], '
-      'vectorOfDoubles: [-1.7976931348623157e+308, 0.0, 1.7976931348623157e+308], '
-      'parentNamespaceTest: null, vectorOfReferrables: null, '
-      'singleWeakReference: 0, vectorOfWeakReferences: null, '
-      'vectorOfStrongReferrables: null, coOwningReference: 0, '
-      'vectorOfCoOwningReferences: null, nonOwningReference: 0, '
-      'vectorOfNonOwningReferences: null, '
-      'anyUniqueType: null, anyUnique: null, '
-      'anyAmbiguousType: null, '
-      'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race{value: -1}, '
-      'testrequirednestedflatbuffer: null, scalarKeySortedTables: [Stat{id: '
-      'miss, val: 0, count: 0}, Stat{id: hit, val: 10, count: 1}], '
-      'nativeInline: Test{a: 1, b: 2}, '
-      'longEnumNonEnumDefault: LongEnum{value: 0}, '
-      'longEnumNormalDefault: LongEnum{value: 2}, nanDefault: NaN, '
-      'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
-      'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
-      '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}'
-    );
+        mon.toString(),
+        'Monster{'
+        '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], '
+        'color: Color.Blue, testType: AnyTypeId.Monster, '
+        'test: Monster{pos: null, mana: 150, hp: 100, name: Fred, '
+        'inventory: null, color: Color.Blue, testType: null, '
+        'test: null, test4: null, testarrayofstring: null, '
+        'testarrayoftables: null, enemy: null, testnestedflatbuffer: null, '
+        'testempty: null, testbool: false, testhashs32Fnv1: 0, '
+        'testhashu32Fnv1: 0, testhashs64Fnv1: 0, testhashu64Fnv1: 0, '
+        'testhashs32Fnv1a: 0, testhashu32Fnv1a: 0, testhashs64Fnv1a: 0, '
+        'testhashu64Fnv1a: 0, testarrayofbools: null, testf: 3.14159, '
+        'testf2: 3.0, testf3: 0.0, testarrayofstring2: null, '
+        'testarrayofsortedstruct: null, flex: null, test5: null, '
+        'vectorOfLongs: null, vectorOfDoubles: null, parentNamespaceTest: null, '
+        'vectorOfReferrables: null, singleWeakReference: 0, '
+        'vectorOfWeakReferences: null, vectorOfStrongReferrables: null, '
+        'coOwningReference: 0, vectorOfCoOwningReferences: null, '
+        'nonOwningReference: 0, vectorOfNonOwningReferences: null, '
+        'anyUniqueType: null, anyUnique: null, anyAmbiguousType: null, '
+        'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
+        'testrequirednestedflatbuffer: null, scalarKeySortedTables: null, '
+        'nativeInline: null, '
+        'longEnumNonEnumDefault: LongEnum._default, '
+        'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
+        'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
+        'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
+        '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}, '
+        'test4: [Test{a: 10, b: 20}, Test{a: 30, b: 40}], '
+        'testarrayofstring: [test1, test2], testarrayoftables: null, '
+        'enemy: Monster{pos: null, mana: 150, hp: 100, name: Fred, '
+        'inventory: null, color: Color.Blue, testType: null, '
+        'test: null, test4: null, testarrayofstring: null, '
+        'testarrayoftables: null, enemy: null, testnestedflatbuffer: null, '
+        'testempty: null, testbool: false, testhashs32Fnv1: 0, '
+        'testhashu32Fnv1: 0, testhashs64Fnv1: 0, testhashu64Fnv1: 0, '
+        'testhashs32Fnv1a: 0, testhashu32Fnv1a: 0, testhashs64Fnv1a: 0, '
+        'testhashu64Fnv1a: 0, testarrayofbools: null, testf: 3.14159, '
+        'testf2: 3.0, testf3: 0.0, testarrayofstring2: null, '
+        'testarrayofsortedstruct: null, flex: null, test5: null, '
+        'vectorOfLongs: null, vectorOfDoubles: null, parentNamespaceTest: null, '
+        'vectorOfReferrables: null, singleWeakReference: 0, '
+        'vectorOfWeakReferences: null, vectorOfStrongReferrables: null, '
+        'coOwningReference: 0, vectorOfCoOwningReferences: null, '
+        'nonOwningReference: 0, vectorOfNonOwningReferences: null, '
+        'anyUniqueType: null, anyUnique: null, anyAmbiguousType: null, '
+        'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
+        'testrequirednestedflatbuffer: null, scalarKeySortedTables: null, '
+        'nativeInline: null, '
+        'longEnumNonEnumDefault: LongEnum._default, '
+        'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
+        'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
+        'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
+        '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}, '
+        'testnestedflatbuffer: null, testempty: null, testbool: true, '
+        'testhashs32Fnv1: -579221183, testhashu32Fnv1: 3715746113, '
+        'testhashs64Fnv1: 7930699090847568257, '
+        'testhashu64Fnv1: 7930699090847568257, '
+        'testhashs32Fnv1a: -1904106383, testhashu32Fnv1a: 2390860913, '
+        'testhashs64Fnv1a: 4898026182817603057, '
+        'testhashu64Fnv1a: 4898026182817603057, '
+        'testarrayofbools: [true, false, true], testf: 3.14159, testf2: 3.0, '
+        'testf3: 0.0, testarrayofstring2: null, testarrayofsortedstruct: ['
+        'Ability{id: 0, distance: 45}, Ability{id: 1, distance: 21}, '
+        'Ability{id: 5, distance: 12}], '
+        'flex: null, test5: [Test{a: 10, b: 20}, Test{a: 30, b: 40}], '
+        'vectorOfLongs: [1, 100, 10000, 1000000, 100000000], '
+        'vectorOfDoubles: [-1.7976931348623157e+308, 0.0, 1.7976931348623157e+308], '
+        'parentNamespaceTest: null, vectorOfReferrables: null, '
+        'singleWeakReference: 0, vectorOfWeakReferences: null, '
+        'vectorOfStrongReferrables: null, coOwningReference: 0, '
+        'vectorOfCoOwningReferences: null, nonOwningReference: 0, '
+        'vectorOfNonOwningReferences: null, '
+        'anyUniqueType: null, anyUnique: null, '
+        'anyAmbiguousType: null, '
+        'anyAmbiguous: null, vectorOfEnums: null, signedEnum: Race.None, '
+        'testrequirednestedflatbuffer: null, scalarKeySortedTables: [Stat{id: '
+        'miss, val: 0, count: 0}, Stat{id: hit, val: 10, count: 1}], '
+        'nativeInline: Test{a: 1, b: 2}, '
+        'longEnumNonEnumDefault: LongEnum._default, '
+        'longEnumNormalDefault: LongEnum.LongOne, nanDefault: NaN, '
+        'infDefault: Infinity, positiveInfDefault: Infinity, infinityDefault: '
+        'Infinity, positiveInfinityDefault: Infinity, negativeInfDefault: '
+        '-Infinity, negativeInfinityDefault: -Infinity, doubleInfDefault: Infinity}');
   }
 }
 
@@ -217,6 +215,10 @@ class BuilderTest {
       ..addTestarrayofstringOffset(testArrayOfString);
     final mon = monBuilder.finish();
     fbBuilder.finish(mon);
+
+    final mon3 = example.Monster(fbBuilder.buffer);
+    expect(mon3.name, 'MyMonster');
+    expect(mon3.pos!.test1, 3.0);
   }
 
   void test_error_addInt32_withoutStartTable([Builder? builder]) {
@@ -769,7 +771,6 @@ class BuilderTest {
 class ObjectAPITest {
   void test_tableStat() {
     final object1 = example.StatT(count: 3, id: "foo", val: 4);
-    expect(object1 is Packable, isTrue);
     final fbb = Builder();
     fbb.finish(object1.pack(fbb));
     final object2 = example.Stat(fbb.buffer).unpack();

dart/test/include_test1_generated.dart

@@ -1,5 +1,5 @@
 // automatically generated by the FlatBuffers compiler, do not modify
-// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable
+// 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;

dart/test/include_test2_my_game.other_name_space_generated.dart

@@ -1,5 +1,5 @@
 // automatically generated by the FlatBuffers compiler, do not modify
-// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable
+// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
 
 library my_game.other_name_space;
 
@@ -9,35 +9,25 @@ import 'package:flat_buffers/flat_buffers.dart' as fb;
 
 import './include_test1_generated.dart';
 
-class FromInclude {
+enum FromInclude {
+  IncludeVal(0);
+
   final int value;
-  const FromInclude._(this.value);
+  const FromInclude(this.value);
 
   factory FromInclude.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-        throw StateError('Invalid value $value for bit flag enum FromInclude');
+    switch (value) {
+      case 0: return FromInclude.IncludeVal;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static FromInclude? _createOrNull(int? value) => 
+  static FromInclude? _createOrNull(int? value) =>
       value == null ? null : FromInclude.fromValue(value);
 
   static const int minValue = 0;
   static const int maxValue = 0;
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const FromInclude IncludeVal = FromInclude._(0);
-  static const Map<int, FromInclude> values = {
-    0: IncludeVal};
-
   static const fb.Reader<FromInclude> reader = _FromIncludeReader();
-
-  @override
-  String toString() {
-    return 'FromInclude{value: $value}';
-  }
 }
 
 class _FromIncludeReader extends fb.Reader<FromInclude> {

dart/test/keyword_test_keyword_test_generated.dart

@@ -1,5 +1,5 @@
 // automatically generated by the FlatBuffers compiler, do not modify
-// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable
+// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
 
 library keyword_test;
 
@@ -7,39 +7,29 @@ import 'dart:typed_data' show Uint8List;
 import 'package:flat_buffers/flat_buffers.dart' as fb;
 
 
-class Abc {
+enum Abc {
+  $void(0),
+  where(1),
+  stackalloc(2);
+
   final int value;
-  const Abc._(this.value);
+  const Abc(this.value);
 
   factory Abc.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-        throw StateError('Invalid value $value for bit flag enum Abc');
+    switch (value) {
+      case 0: return Abc.$void;
+      case 1: return Abc.where;
+      case 2: return Abc.stackalloc;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static Abc? _createOrNull(int? value) => 
+  static Abc? _createOrNull(int? value) =>
       value == null ? null : Abc.fromValue(value);
 
   static const int minValue = 0;
   static const int maxValue = 2;
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const Abc $void = Abc._(0);
-  static const Abc where = Abc._(1);
-  static const Abc stackalloc = Abc._(2);
-  static const Map<int, Abc> values = {
-    0: $void,
-    1: where,
-    2: stackalloc};
-
   static const fb.Reader<Abc> reader = _AbcReader();
-
-  @override
-  String toString() {
-    return 'Abc{value: $value}';
-  }
 }
 
 class _AbcReader extends fb.Reader<Abc> {
@@ -53,35 +43,25 @@ class _AbcReader extends fb.Reader<Abc> {
       Abc.fromValue(const fb.Int32Reader().read(bc, offset));
 }
 
-class Public {
+enum Public {
+  NONE(0);
+
   final int value;
-  const Public._(this.value);
+  const Public(this.value);
 
   factory Public.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-        throw StateError('Invalid value $value for bit flag enum Public');
+    switch (value) {
+      case 0: return Public.NONE;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static Public? _createOrNull(int? value) => 
+  static Public? _createOrNull(int? value) =>
       value == null ? null : Public.fromValue(value);
 
   static const int minValue = 0;
   static const int maxValue = 0;
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const Public NONE = Public._(0);
-  static const Map<int, Public> values = {
-    0: NONE};
-
   static const fb.Reader<Public> reader = _PublicReader();
-
-  @override
-  String toString() {
-    return 'Public{value: $value}';
-  }
 }
 
 class _PublicReader extends fb.Reader<Public> {
@@ -95,39 +75,29 @@ class _PublicReader extends fb.Reader<Public> {
       Public.fromValue(const fb.Int32Reader().read(bc, offset));
 }
 
-class KeywordsInUnionTypeId {
+enum KeywordsInUnionTypeId {
+  NONE(0),
+  $static(1),
+  internal(2);
+
   final int value;
-  const KeywordsInUnionTypeId._(this.value);
+  const KeywordsInUnionTypeId(this.value);
 
   factory KeywordsInUnionTypeId.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-        throw StateError('Invalid value $value for bit flag enum KeywordsInUnionTypeId');
+    switch (value) {
+      case 0: return KeywordsInUnionTypeId.NONE;
+      case 1: return KeywordsInUnionTypeId.$static;
+      case 2: return KeywordsInUnionTypeId.internal;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static KeywordsInUnionTypeId? _createOrNull(int? value) => 
+  static KeywordsInUnionTypeId? _createOrNull(int? value) =>
       value == null ? null : KeywordsInUnionTypeId.fromValue(value);
 
   static const int minValue = 0;
   static const int maxValue = 2;
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const KeywordsInUnionTypeId NONE = KeywordsInUnionTypeId._(0);
-  static const KeywordsInUnionTypeId $static = KeywordsInUnionTypeId._(1);
-  static const KeywordsInUnionTypeId internal = KeywordsInUnionTypeId._(2);
-  static const Map<int, KeywordsInUnionTypeId> values = {
-    0: NONE,
-    1: $static,
-    2: internal};
-
   static const fb.Reader<KeywordsInUnionTypeId> reader = _KeywordsInUnionTypeIdReader();
-
-  @override
-  String toString() {
-    return 'KeywordsInUnionTypeId{value: $value}';
-  }
 }
 
 class _KeywordsInUnionTypeIdReader extends fb.Reader<KeywordsInUnionTypeId> {

dart/test/monster_test.fbs

@@ -59,8 +59,6 @@ struct Vec3 (force_align: 8) {
   test3:Test;
 }
 
-// Stats for monster
-
 struct Ability {
   id:uint(key);
   distance:uint;

dart/test/monster_test_my_game.example2_generated.dart

@@ -1,5 +1,5 @@
 // automatically generated by the FlatBuffers compiler, do not modify
-// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable
+// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
 
 library my_game.example2;
 

dart/test/monster_test_my_game.example_generated.dart

@@ -1,5 +1,5 @@
 // automatically generated by the FlatBuffers compiler, do not modify
-// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable
+// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
 
 library my_game.example;
 
@@ -12,46 +12,29 @@ import './monster_test_my_game.example2_generated.dart' as my_game_example2;
 import './include_test1_generated.dart';
 
 ///  Composite components of Monster color.
-class Color {
+enum Color {
+  Red(1),
+  Green(2),
+  Blue(8),
+  _default(0);
+
   final int value;
-  const Color._(this.value);
+  const Color(this.value);
 
   factory Color.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-      if (value == 0) {
-        return Color._(0);
-      } else {
-        throw StateError('Invalid value $value for bit flag enum Color');
-      }
+    switch (value) {
+      case 1: return Color.Red;
+      case 2: return Color.Green;
+      case 8: return Color.Blue;
+      case 0: return Color._default;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static Color? _createOrNull(int? value) => 
+  static Color? _createOrNull(int? value) =>
       value == null ? null : Color.fromValue(value);
 
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const Color Red = Color._(1);
-
-  ///  \brief color Green
-  ///  Green is bit_flag with value (1u << 1)
-  static const Color Green = Color._(2);
-
-  ///  \brief color Blue (1u << 3)
-  static const Color Blue = Color._(8);
-  static const Map<int, Color> values = {
-    1: Red,
-    2: Green,
-    8: Blue};
-
   static const fb.Reader<Color> reader = _ColorReader();
-
-  @override
-  String toString() {
-    return 'Color{value: $value}';
-  }
 }
 
 class _ColorReader extends fb.Reader<Color> {
@@ -65,41 +48,31 @@ class _ColorReader extends fb.Reader<Color> {
       Color.fromValue(const fb.Uint8Reader().read(bc, offset));
 }
 
-class Race {
+enum Race {
+  None(-1),
+  Human(0),
+  Dwarf(1),
+  Elf(2);
+
   final int value;
-  const Race._(this.value);
+  const Race(this.value);
 
   factory Race.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-        throw StateError('Invalid value $value for bit flag enum Race');
+    switch (value) {
+      case -1: return Race.None;
+      case 0: return Race.Human;
+      case 1: return Race.Dwarf;
+      case 2: return Race.Elf;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static Race? _createOrNull(int? value) => 
+  static Race? _createOrNull(int? value) =>
       value == null ? null : Race.fromValue(value);
 
   static const int minValue = -1;
   static const int maxValue = 2;
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const Race None = Race._(-1);
-  static const Race Human = Race._(0);
-  static const Race Dwarf = Race._(1);
-  static const Race Elf = Race._(2);
-  static const Map<int, Race> values = {
-    -1: None,
-    0: Human,
-    1: Dwarf,
-    2: Elf};
-
   static const fb.Reader<Race> reader = _RaceReader();
-
-  @override
-  String toString() {
-    return 'Race{value: $value}';
-  }
 }
 
 class _RaceReader extends fb.Reader<Race> {
@@ -113,41 +86,29 @@ class _RaceReader extends fb.Reader<Race> {
       Race.fromValue(const fb.Int8Reader().read(bc, offset));
 }
 
-class LongEnum {
+enum LongEnum {
+  LongOne(2),
+  LongTwo(4),
+  LongBig(1099511627776),
+  _default(0);
+
   final int value;
-  const LongEnum._(this.value);
+  const LongEnum(this.value);
 
   factory LongEnum.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-      if (value == 0) {
-        return LongEnum._(0);
-      } else {
-        throw StateError('Invalid value $value for bit flag enum LongEnum');
-      }
+    switch (value) {
+      case 2: return LongEnum.LongOne;
+      case 4: return LongEnum.LongTwo;
+      case 1099511627776: return LongEnum.LongBig;
+      case 0: return LongEnum._default;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static LongEnum? _createOrNull(int? value) => 
+  static LongEnum? _createOrNull(int? value) =>
       value == null ? null : LongEnum.fromValue(value);
 
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const LongEnum LongOne = LongEnum._(2);
-  static const LongEnum LongTwo = LongEnum._(4);
-  static const LongEnum LongBig = LongEnum._(1099511627776);
-  static const Map<int, LongEnum> values = {
-    2: LongOne,
-    4: LongTwo,
-    1099511627776: LongBig};
-
   static const fb.Reader<LongEnum> reader = _LongEnumReader();
-
-  @override
-  String toString() {
-    return 'LongEnum{value: $value}';
-  }
 }
 
 class _LongEnumReader extends fb.Reader<LongEnum> {
@@ -161,41 +122,31 @@ class _LongEnumReader extends fb.Reader<LongEnum> {
       LongEnum.fromValue(const fb.Uint64Reader().read(bc, offset));
 }
 
-class AnyTypeId {
+enum AnyTypeId {
+  NONE(0),
+  Monster(1),
+  TestSimpleTableWithEnum(2),
+  MyGame_Example2_Monster(3);
+
   final int value;
-  const AnyTypeId._(this.value);
+  const AnyTypeId(this.value);
 
   factory AnyTypeId.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-        throw StateError('Invalid value $value for bit flag enum AnyTypeId');
+    switch (value) {
+      case 0: return AnyTypeId.NONE;
+      case 1: return AnyTypeId.Monster;
+      case 2: return AnyTypeId.TestSimpleTableWithEnum;
+      case 3: return AnyTypeId.MyGame_Example2_Monster;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static AnyTypeId? _createOrNull(int? value) => 
+  static AnyTypeId? _createOrNull(int? value) =>
       value == null ? null : AnyTypeId.fromValue(value);
 
   static const int minValue = 0;
   static const int maxValue = 3;
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const AnyTypeId NONE = AnyTypeId._(0);
-  static const AnyTypeId Monster = AnyTypeId._(1);
-  static const AnyTypeId TestSimpleTableWithEnum = AnyTypeId._(2);
-  static const AnyTypeId MyGame_Example2_Monster = AnyTypeId._(3);
-  static const Map<int, AnyTypeId> values = {
-    0: NONE,
-    1: Monster,
-    2: TestSimpleTableWithEnum,
-    3: MyGame_Example2_Monster};
-
   static const fb.Reader<AnyTypeId> reader = _AnyTypeIdReader();
-
-  @override
-  String toString() {
-    return 'AnyTypeId{value: $value}';
-  }
 }
 
 class _AnyTypeIdReader extends fb.Reader<AnyTypeId> {
@@ -209,41 +160,31 @@ class _AnyTypeIdReader extends fb.Reader<AnyTypeId> {
       AnyTypeId.fromValue(const fb.Uint8Reader().read(bc, offset));
 }
 
-class AnyUniqueAliasesTypeId {
+enum AnyUniqueAliasesTypeId {
+  NONE(0),
+  M(1),
+  TS(2),
+  M2(3);
+
   final int value;
-  const AnyUniqueAliasesTypeId._(this.value);
+  const AnyUniqueAliasesTypeId(this.value);
 
   factory AnyUniqueAliasesTypeId.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-        throw StateError('Invalid value $value for bit flag enum AnyUniqueAliasesTypeId');
+    switch (value) {
+      case 0: return AnyUniqueAliasesTypeId.NONE;
+      case 1: return AnyUniqueAliasesTypeId.M;
+      case 2: return AnyUniqueAliasesTypeId.TS;
+      case 3: return AnyUniqueAliasesTypeId.M2;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static AnyUniqueAliasesTypeId? _createOrNull(int? value) => 
+  static AnyUniqueAliasesTypeId? _createOrNull(int? value) =>
       value == null ? null : AnyUniqueAliasesTypeId.fromValue(value);
 
   static const int minValue = 0;
   static const int maxValue = 3;
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const AnyUniqueAliasesTypeId NONE = AnyUniqueAliasesTypeId._(0);
-  static const AnyUniqueAliasesTypeId M = AnyUniqueAliasesTypeId._(1);
-  static const AnyUniqueAliasesTypeId TS = AnyUniqueAliasesTypeId._(2);
-  static const AnyUniqueAliasesTypeId M2 = AnyUniqueAliasesTypeId._(3);
-  static const Map<int, AnyUniqueAliasesTypeId> values = {
-    0: NONE,
-    1: M,
-    2: TS,
-    3: M2};
-
   static const fb.Reader<AnyUniqueAliasesTypeId> reader = _AnyUniqueAliasesTypeIdReader();
-
-  @override
-  String toString() {
-    return 'AnyUniqueAliasesTypeId{value: $value}';
-  }
 }
 
 class _AnyUniqueAliasesTypeIdReader extends fb.Reader<AnyUniqueAliasesTypeId> {
@@ -257,41 +198,31 @@ class _AnyUniqueAliasesTypeIdReader extends fb.Reader<AnyUniqueAliasesTypeId> {
       AnyUniqueAliasesTypeId.fromValue(const fb.Uint8Reader().read(bc, offset));
 }
 
-class AnyAmbiguousAliasesTypeId {
+enum AnyAmbiguousAliasesTypeId {
+  NONE(0),
+  M1(1),
+  M2(2),
+  M3(3);
+
   final int value;
-  const AnyAmbiguousAliasesTypeId._(this.value);
+  const AnyAmbiguousAliasesTypeId(this.value);
 
   factory AnyAmbiguousAliasesTypeId.fromValue(int value) {
-    final result = values[value];
-    if (result == null) {
-        throw StateError('Invalid value $value for bit flag enum AnyAmbiguousAliasesTypeId');
+    switch (value) {
+      case 0: return AnyAmbiguousAliasesTypeId.NONE;
+      case 1: return AnyAmbiguousAliasesTypeId.M1;
+      case 2: return AnyAmbiguousAliasesTypeId.M2;
+      case 3: return AnyAmbiguousAliasesTypeId.M3;
+      default: throw StateError('Invalid value $value for bit flag enum');
     }
-    return result;
   }
 
-  static AnyAmbiguousAliasesTypeId? _createOrNull(int? value) => 
+  static AnyAmbiguousAliasesTypeId? _createOrNull(int? value) =>
       value == null ? null : AnyAmbiguousAliasesTypeId.fromValue(value);
 
   static const int minValue = 0;
   static const int maxValue = 3;
-  static bool containsValue(int value) => values.containsKey(value);
-
-  static const AnyAmbiguousAliasesTypeId NONE = AnyAmbiguousAliasesTypeId._(0);
-  static const AnyAmbiguousAliasesTypeId M1 = AnyAmbiguousAliasesTypeId._(1);
-  static const AnyAmbiguousAliasesTypeId M2 = AnyAmbiguousAliasesTypeId._(2);
-  static const AnyAmbiguousAliasesTypeId M3 = AnyAmbiguousAliasesTypeId._(3);
-  static const Map<int, AnyAmbiguousAliasesTypeId> values = {
-    0: NONE,
-    1: M1,
-    2: M2,
-    3: M3};
-
   static const fb.Reader<AnyAmbiguousAliasesTypeId> reader = _AnyAmbiguousAliasesTypeIdReader();
-
-  @override
-  String toString() {
-    return 'AnyAmbiguousAliasesTypeId{value: $value}';
-  }
 }
 
 class _AnyAmbiguousAliasesTypeIdReader extends fb.Reader<AnyAmbiguousAliasesTypeId> {
@@ -1461,7 +1392,7 @@ class MonsterT implements fb.Packable {
       this.testrequirednestedflatbuffer,
       this.scalarKeySortedTables,
       this.nativeInline,
-      this.longEnumNonEnumDefault = const LongEnum._(0),
+      this.longEnumNonEnumDefault = LongEnum._default,
       this.longEnumNormalDefault = LongEnum.LongOne,
       this.nanDefault = double.nan,
       this.infDefault = double.infinity,

dart/test/monster_test_my_game_generated.dart

@@ -1,5 +1,5 @@
 // automatically generated by the FlatBuffers compiler, do not modify
-// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable
+// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
 
 library my_game;
 

docs/source/Compiler.md

@@ -23,31 +23,35 @@ For any schema input files, one or more generators can be specified:
 
 -   `--java`, `-j` : Generate Java code.
 
--   `--kotlin`, `-k` : Generate Kotlin code.
+-   `--kotlin` , `--kotlin-kmp` : Generate Kotlin code.
 
 -   `--csharp`, `-n` : Generate C# code.
 
 -   `--go`, `-g` : Generate Go code.
 
--   `--python`, `-p`: Generate Python code.
+-   `--python`, `-p` : Generate Python code.
 
--   `--js`, `-s`: Generate JavaScript code.
+-   `--js`, `-s` : Generate JavaScript code.
 
--   `--ts`: Generate TypeScript code.
+-   `--ts`, `-T` : Generate TypeScript code.
 
--   `--php`: Generate PHP code.
+-   `--php` : Generate PHP code.
 
--   `--grpc`: Generate RPC stub code for GRPC.
+-   `--grpc` : Generate RPC stub code for GRPC.
 
--   `--dart`: Generate Dart code.
+-   `--dart`, `-d` : Generate Dart code.
 
--   `--lua`: Generate Lua code.
+-   `--lua`, `-l` : Generate Lua code.
 
--   `--lobster`: Generate Lobster code.
+-   `--lobster` : Generate Lobster code.
 
 -   `--rust`, `-r` : Generate Rust code.
 
--   `--swift`: Generate Swift code.
+-   `--swift` : Generate Swift code.
+
+-   `--nim` : Generate Nim code.
+
+
 
 For any data input files:
 
@@ -58,6 +62,8 @@ For any data input files:
 -   `--json`, `-t` : If data is contained in this file, generate a
     `filename.json` representing the data in the flatbuffer.
 
+-   `--jsonschema` : Generate Json schema
+
 Additional options:
 
 -   `-o PATH` : Output all generated files to PATH (either absolute, or
@@ -90,10 +96,10 @@ Additional options:
 
 -   `--scoped-enums` : Use C++11 style scoped and strongly typed enums in
     generated C++. This also implies `--no-prefix`.
-    
+
 -   `--no-emit-min-max-enum-values` : Disable generation of MIN and MAX
     enumerated values for scoped enums and prefixed enums.
-    
+
 -   `--gen-includes` : (deprecated), this is the default behavior.
                        If the original behavior is required (no include
 	                   statements) use `--no-includes.`
@@ -115,7 +121,7 @@ Additional options:
 
 -   `--gen-compare`  :  Generate operator== for object-based API types.
 
--   `--gen-nullable` : Add Clang _Nullable for C++ pointer. or @Nullable for Java.
+-   `--gen-nullable` : Add Clang \_Nullable for C++ pointer. or @Nullable for Java.
 
 -   `--gen-generated` : Add @Generated annotation for Java.
 
@@ -189,7 +195,7 @@ Additional options:
     `--conform PATH`.
 
 -   `--filename-suffix SUFFIX` : The suffix appended to the generated
-    file names. Default is '_generated'.
+    file names. Default is '\_generated'.
 
 -   `--filename-ext EXTENSION` : The extension appended to the generated
     file names. Default is language-specific (e.g. "h" for C++). This
@@ -227,5 +233,49 @@ Additional options:
     vector of bytes in JSON, which is unsafe unless checked by a verifier
     afterwards.
 
+-   `--python-no-type-prefix-suffix` : Skip emission of Python functions that are prefixed
+    with typenames
+
+-   `--python-typing` : Generate Python type annotations
+
+Additional gRPC options:
+
+-   `--grpc-filename-suffix`: `[C++]` An optional suffix for the generated
+    files' names. For example, compiling gRPC for C++ with
+    `--grpc-filename-suffix=.fbs` will generate `{name}.fbs.h` and
+    `{name}.fbs.cc` files.
+
+-   `--grpc-additional-header`: `[C++]` Additional headers to include in the
+    generated files.
+
+-   `--grpc-search-path`: `[C++]` An optional prefix for the gRPC runtime path.
+    For example, compiling gRPC for C++ with `--grpc-search-path=some/path` will
+    generate the following includes:
+
+    ```cpp
+      #include "some/path/grpcpp/impl/codegen/async_stream.h"
+      #include "some/path/grpcpp/impl/codegen/async_unary_call.h"
+      #include "some/path/grpcpp/impl/codegen/method_handler.h"
+      ...
+    ```
+
+-   `--grpc-use-system-headers`: `[C++]` Whether to generate `#include <header>`
+    instead of `#include "header.h"` for all headers when compiling gRPC for
+    C++. For example, compiling gRPC for C++ with `--grpc-use-system-headers`
+    will generate the following includes:
+
+    ```cpp
+      #include <some/path/grpcpp/impl/codegen/async_stream.h>
+      #include <some/path/grpcpp/impl/codegen/async_unary_call.h>
+      #include <some/path/grpcpp/impl/codegen/method_handler.h>
+      ...
+    ```
+
+    NOTE: This option can be negated with `--no-grpc-use-system-headers`.
+
+-   `--grpc-python-typed-handlers`: `[Python]` Whether to generate the typed
+    handlers that use the generated Python classes instead of raw bytes for
+    requests/responses.
+
 NOTE: short-form options for generators are deprecated, use the long form
 whenever possible.

docs/source/CsharpUsage.md

@@ -24,17 +24,14 @@ FlatBuffers).
 ## Building the FlatBuffers C# library
 
 The `FlatBuffers.csproj` project contains multitargeting for .NET Standard 2.1,
-.NET Standard 2.0, and .NET Framework 4.6 (Unity 2017). Support for .NET
-Framework 3.5 (Unity 5) is provided by the `FlatBuffers.net35.csproj` project.
-In most cases (including Unity 2018 and newer), .NET Standard 2.0 is
-recommended.
+.NET 6 and .NET 8.
 
 You can build for a specific framework target when using the cross-platform
 [.NET Core SDK](https://dotnet.microsoft.com/download) by adding the `-f`
 command line option:
 
 ~~~{.sh}
-    dotnet build -f netstandard2.0 "FlatBuffers.csproj"
+    dotnet build -f netstandard2.1 "FlatBuffers.csproj"
 ~~~
 
 The `FlatBuffers.csproj` project also provides support for defining various
@@ -142,10 +139,10 @@ To use it:
     `ByKey` only works if the vector has been sorted, it will
     likely not find elements if it hasn't been sorted.
 
-## Buffer verification 
+## Buffer verification
 
 As mentioned in [C++ Usage](@ref flatbuffers_guide_use_cpp) buffer
-accessor functions do not verify buffer offsets at run-time. 
+accessor functions do not verify buffer offsets at run-time.
 If it is necessary, you can optionally use a buffer verifier before you
 access the data. This verifier will check all offsets, all sizes of
 fields, and null termination of strings to ensure that when a buffer
@@ -158,17 +155,17 @@ e.g. `Monster.VerifyMonster`. This can be called as shown:
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 if `ok` is true, the buffer is safe to read.
 
-For a more detailed control of verification `MonsterVerify.Verify` 
-for `Monster` type can be used: 
+For a more detailed control of verification `MonsterVerify.Verify`
+for `Monster` type can be used:
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.cs}
     # Sequence of calls
     FlatBuffers.Verifier verifier = new FlatBuffers.Verifier(buf);
     var ok = verifier.VerifyBuffer("MONS", false, MonsterVerify.Verify);
-    
-    # Or single line call 
+
+    # Or single line call
     var ok = new FlatBuffers.Verifier(bb).setStringCheck(true).\
              VerifyBuffer("MONS", false, MonsterVerify.Verify);
-       
+
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 if `ok` is true, the buffer is safe to read.
 
@@ -181,7 +178,7 @@ Verifier supports options that can be set using appropriate fluent methods:
 * SetMaxTables - total amount of tables the verifier may encounter. Default: 64
 * SetAlignmentCheck - check content alignment. Default: True
 * SetStringCheck - check if strings contain termination '0' character. Default: true
- 
+
 
 ## Text parsing
 

goldens/cpp/basic_generated.h

@@ -1,18 +1,21 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
 
-#ifndef FLATBUFFERS_GENERATED_BASIC_H_
-#define FLATBUFFERS_GENERATED_BASIC_H_
+#ifndef FLATBUFFERS_GENERATED_BASIC_FLATBUFFERS_GOLDENS_H_
+#define FLATBUFFERS_GENERATED_BASIC_FLATBUFFERS_GOLDENS_H_
 
 #include "flatbuffers/flatbuffers.h"
 
 // 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 == 23 &&
-              FLATBUFFERS_VERSION_MINOR == 5 &&
-              FLATBUFFERS_VERSION_REVISION == 9,
+static_assert(FLATBUFFERS_VERSION_MAJOR == 24 &&
+              FLATBUFFERS_VERSION_MINOR == 12 &&
+              FLATBUFFERS_VERSION_REVISION == 23,
              "Non-compatible flatbuffers version included");
 
+namespace flatbuffers {
+namespace goldens {
+
 struct Galaxy;
 struct GalaxyBuilder;
 
@@ -69,8 +72,8 @@ struct Universe FLATBUFFERS_FINAL_CLASS : private ::flatbuffers::Table {
   double age() const {
     return GetField<double>(VT_AGE, 0.0);
   }
-  const ::flatbuffers::Vector<::flatbuffers::Offset<Galaxy>> *galaxies() const {
-    return GetPointer<const ::flatbuffers::Vector<::flatbuffers::Offset<Galaxy>> *>(VT_GALAXIES);
+  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 {
     return VerifyTableStart(verifier) &&
@@ -89,7 +92,7 @@ struct UniverseBuilder {
   void add_age(double age) {
     fbb_.AddElement<double>(Universe::VT_AGE, age, 0.0);
   }
-  void add_galaxies(::flatbuffers::Offset<::flatbuffers::Vector<::flatbuffers::Offset<Galaxy>>> galaxies) {
+  void add_galaxies(::flatbuffers::Offset<::flatbuffers::Vector<::flatbuffers::Offset<flatbuffers::goldens::Galaxy>>> galaxies) {
     fbb_.AddOffset(Universe::VT_GALAXIES, galaxies);
   }
   explicit UniverseBuilder(::flatbuffers::FlatBufferBuilder &_fbb)
@@ -106,7 +109,7 @@ struct UniverseBuilder {
 inline ::flatbuffers::Offset<Universe> CreateUniverse(
     ::flatbuffers::FlatBufferBuilder &_fbb,
     double age = 0.0,
-    ::flatbuffers::Offset<::flatbuffers::Vector<::flatbuffers::Offset<Galaxy>>> galaxies = 0) {
+    ::flatbuffers::Offset<::flatbuffers::Vector<::flatbuffers::Offset<flatbuffers::goldens::Galaxy>>> galaxies = 0) {
   UniverseBuilder builder_(_fbb);
   builder_.add_age(age);
   builder_.add_galaxies(galaxies);
@@ -116,42 +119,45 @@ inline ::flatbuffers::Offset<Universe> CreateUniverse(
 inline ::flatbuffers::Offset<Universe> CreateUniverseDirect(
     ::flatbuffers::FlatBufferBuilder &_fbb,
     double age = 0.0,
-    const std::vector<::flatbuffers::Offset<Galaxy>> *galaxies = nullptr) {
-  auto galaxies__ = galaxies ? _fbb.CreateVector<::flatbuffers::Offset<Galaxy>>(*galaxies) : 0;
-  return CreateUniverse(
+    const std::vector<::flatbuffers::Offset<flatbuffers::goldens::Galaxy>> *galaxies = nullptr) {
+  auto galaxies__ = galaxies ? _fbb.CreateVector<::flatbuffers::Offset<flatbuffers::goldens::Galaxy>>(*galaxies) : 0;
+  return flatbuffers::goldens::CreateUniverse(
       _fbb,
       age,
       galaxies__);
 }
 
-inline const Universe *GetUniverse(const void *buf) {
-  return ::flatbuffers::GetRoot<Universe>(buf);
+inline const flatbuffers::goldens::Universe *GetUniverse(const void *buf) {
+  return ::flatbuffers::GetRoot<flatbuffers::goldens::Universe>(buf);
 }
 
-inline const Universe *GetSizePrefixedUniverse(const void *buf) {
-  return ::flatbuffers::GetSizePrefixedRoot<Universe>(buf);
+inline const flatbuffers::goldens::Universe *GetSizePrefixedUniverse(const void *buf) {
+  return ::flatbuffers::GetSizePrefixedRoot<flatbuffers::goldens::Universe>(buf);
 }
 
 inline bool VerifyUniverseBuffer(
     ::flatbuffers::Verifier &verifier) {
-  return verifier.VerifyBuffer<Universe>(nullptr);
+  return verifier.VerifyBuffer<flatbuffers::goldens::Universe>(nullptr);
 }
 
 inline bool VerifySizePrefixedUniverseBuffer(
     ::flatbuffers::Verifier &verifier) {
-  return verifier.VerifySizePrefixedBuffer<Universe>(nullptr);
+  return verifier.VerifySizePrefixedBuffer<flatbuffers::goldens::Universe>(nullptr);
 }
 
 inline void FinishUniverseBuffer(
     ::flatbuffers::FlatBufferBuilder &fbb,
-    ::flatbuffers::Offset<Universe> root) {
+    ::flatbuffers::Offset<flatbuffers::goldens::Universe> root) {
   fbb.Finish(root);
 }
 
 inline void FinishSizePrefixedUniverseBuffer(
     ::flatbuffers::FlatBufferBuilder &fbb,
-    ::flatbuffers::Offset<Universe> root) {
+    ::flatbuffers::Offset<flatbuffers::goldens::Universe> root) {
   fbb.FinishSizePrefixed(root);
 }
 
-#endif  // FLATBUFFERS_GENERATED_BASIC_H_
+}  // namespace goldens
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_GENERATED_BASIC_FLATBUFFERS_GOLDENS_H_

goldens/csharp/flatbuffers/goldens/Galaxy.cs

@@ -2,6 +2,9 @@
 //  automatically generated by the FlatBuffers compiler, do not modify
 // </auto-generated>
 
+namespace flatbuffers.goldens
+{
+
 using global::System;
 using global::System.Collections.Generic;
 using global::Google.FlatBuffers;
@@ -10,7 +13,7 @@ public struct Galaxy : IFlatbufferObject
 {
   private Table __p;
   public ByteBuffer ByteBuffer { get { return __p.bb; } }
-  public static void ValidateVersion() { FlatBufferConstants.FLATBUFFERS_23_5_26(); }
+  public static void ValidateVersion() { FlatBufferConstants.FLATBUFFERS_24_12_23(); }
   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); }
@@ -18,7 +21,7 @@ public struct Galaxy : IFlatbufferObject
 
   public long NumStars { get { int o = __p.__offset(4); return o != 0 ? __p.bb.GetLong(o + __p.bb_pos) : (long)0; } }
 
-  public static Offset<Galaxy> CreateGalaxy(FlatBufferBuilder builder,
+  public static Offset<flatbuffers.goldens.Galaxy> CreateGalaxy(FlatBufferBuilder builder,
       long num_stars = 0) {
     builder.StartTable(1);
     Galaxy.AddNumStars(builder, num_stars);
@@ -27,9 +30,9 @@ public struct Galaxy : IFlatbufferObject
 
   public static void StartGalaxy(FlatBufferBuilder builder) { builder.StartTable(1); }
   public static void AddNumStars(FlatBufferBuilder builder, long numStars) { builder.AddLong(0, numStars, 0); }
-  public static Offset<Galaxy> EndGalaxy(FlatBufferBuilder builder) {
+  public static Offset<flatbuffers.goldens.Galaxy> EndGalaxy(FlatBufferBuilder builder) {
     int o = builder.EndTable();
-    return new Offset<Galaxy>(o);
+    return new Offset<flatbuffers.goldens.Galaxy>(o);
   }
 }
 
@@ -43,3 +46,5 @@ static public class GalaxyVerify
       && verifier.VerifyTableEnd(tablePos);
   }
 }
+
+}

goldens/csharp/flatbuffers/goldens/Universe.cs

@@ -2,6 +2,9 @@
 //  automatically generated by the FlatBuffers compiler, do not modify
 // </auto-generated>
 
+namespace flatbuffers.goldens
+{
+
 using global::System;
 using global::System.Collections.Generic;
 using global::Google.FlatBuffers;
@@ -10,7 +13,7 @@ public struct Universe : IFlatbufferObject
 {
   private Table __p;
   public ByteBuffer ByteBuffer { get { return __p.bb; } }
-  public static void ValidateVersion() { FlatBufferConstants.FLATBUFFERS_23_5_26(); }
+  public static void ValidateVersion() { FlatBufferConstants.FLATBUFFERS_24_12_23(); }
   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); }
@@ -18,10 +21,10 @@ public struct Universe : IFlatbufferObject
   public Universe __assign(int _i, ByteBuffer _bb) { __init(_i, _bb); return this; }
 
   public double Age { get { int o = __p.__offset(4); return o != 0 ? __p.bb.GetDouble(o + __p.bb_pos) : (double)0.0; } }
-  public Galaxy? Galaxies(int j) { int o = __p.__offset(6); return o != 0 ? (Galaxy?)(new Galaxy()).__assign(__p.__indirect(__p.__vector(o) + j * 4), __p.bb) : null; }
+  public flatbuffers.goldens.Galaxy? Galaxies(int j) { int o = __p.__offset(6); return o != 0 ? (flatbuffers.goldens.Galaxy?)(new flatbuffers.goldens.Galaxy()).__assign(__p.__indirect(__p.__vector(o) + j * 4), __p.bb) : null; }
   public int GalaxiesLength { get { int o = __p.__offset(6); return o != 0 ? __p.__vector_len(o) : 0; } }
 
-  public static Offset<Universe> CreateUniverse(FlatBufferBuilder builder,
+  public static Offset<flatbuffers.goldens.Universe> CreateUniverse(FlatBufferBuilder builder,
       double age = 0.0,
       VectorOffset galaxiesOffset = default(VectorOffset)) {
     builder.StartTable(2);
@@ -33,17 +36,17 @@ public struct Universe : IFlatbufferObject
   public static void StartUniverse(FlatBufferBuilder builder) { builder.StartTable(2); }
   public static void AddAge(FlatBufferBuilder builder, double age) { builder.AddDouble(0, age, 0.0); }
   public static void AddGalaxies(FlatBufferBuilder builder, VectorOffset galaxiesOffset) { builder.AddOffset(1, galaxiesOffset.Value, 0); }
-  public static VectorOffset CreateGalaxiesVector(FlatBufferBuilder builder, Offset<Galaxy>[] data) { builder.StartVector(4, data.Length, 4); for (int i = data.Length - 1; i >= 0; i--) builder.AddOffset(data[i].Value); return builder.EndVector(); }
-  public static VectorOffset CreateGalaxiesVectorBlock(FlatBufferBuilder builder, Offset<Galaxy>[] data) { builder.StartVector(4, data.Length, 4); builder.Add(data); return builder.EndVector(); }
-  public static VectorOffset CreateGalaxiesVectorBlock(FlatBufferBuilder builder, ArraySegment<Offset<Galaxy>> data) { builder.StartVector(4, data.Count, 4); builder.Add(data); return builder.EndVector(); }
-  public static VectorOffset CreateGalaxiesVectorBlock(FlatBufferBuilder builder, IntPtr dataPtr, int sizeInBytes) { builder.StartVector(1, sizeInBytes, 1); builder.Add<Offset<Galaxy>>(dataPtr, sizeInBytes); return builder.EndVector(); }
+  public static VectorOffset CreateGalaxiesVector(FlatBufferBuilder builder, Offset<flatbuffers.goldens.Galaxy>[] data) { builder.StartVector(4, data.Length, 4); for (int i = data.Length - 1; i >= 0; i--) builder.AddOffset(data[i].Value); return builder.EndVector(); }
+  public static VectorOffset CreateGalaxiesVectorBlock(FlatBufferBuilder builder, Offset<flatbuffers.goldens.Galaxy>[] data) { builder.StartVector(4, data.Length, 4); builder.Add(data); return builder.EndVector(); }
+  public static VectorOffset CreateGalaxiesVectorBlock(FlatBufferBuilder builder, ArraySegment<Offset<flatbuffers.goldens.Galaxy>> data) { builder.StartVector(4, data.Count, 4); builder.Add(data); return builder.EndVector(); }
+  public static VectorOffset CreateGalaxiesVectorBlock(FlatBufferBuilder builder, IntPtr dataPtr, int sizeInBytes) { builder.StartVector(1, sizeInBytes, 1); builder.Add<Offset<flatbuffers.goldens.Galaxy>>(dataPtr, sizeInBytes); return builder.EndVector(); }
   public static void StartGalaxiesVector(FlatBufferBuilder builder, int numElems) { builder.StartVector(4, numElems, 4); }
-  public static Offset<Universe> EndUniverse(FlatBufferBuilder builder) {
+  public static Offset<flatbuffers.goldens.Universe> EndUniverse(FlatBufferBuilder builder) {
     int o = builder.EndTable();
-    return new Offset<Universe>(o);
+    return new Offset<flatbuffers.goldens.Universe>(o);
   }
-  public static void FinishUniverseBuffer(FlatBufferBuilder builder, Offset<Universe> offset) { builder.Finish(offset.Value); }
-  public static void FinishSizePrefixedUniverseBuffer(FlatBufferBuilder builder, Offset<Universe> offset) { builder.FinishSizePrefixed(offset.Value); }
+  public static void FinishUniverseBuffer(FlatBufferBuilder builder, Offset<flatbuffers.goldens.Universe> offset) { builder.Finish(offset.Value); }
+  public static void FinishSizePrefixedUniverseBuffer(FlatBufferBuilder builder, Offset<flatbuffers.goldens.Universe> offset) { builder.FinishSizePrefixed(offset.Value); }
 }
 
 
@@ -53,7 +56,9 @@ static public class UniverseVerify
   {
     return verifier.VerifyTableStart(tablePos)
       && verifier.VerifyField(tablePos, 4 /*Age*/, 8 /*double*/, 8, false)
-      && verifier.VerifyVectorOfTables(tablePos, 6 /*Galaxies*/, GalaxyVerify.Verify, false)
+      && verifier.VerifyVectorOfTables(tablePos, 6 /*Galaxies*/, flatbuffers.goldens.GalaxyVerify.Verify, false)
       && verifier.VerifyTableEnd(tablePos);
   }
 }
+
+}

goldens/dart/basic_flatbuffers.goldens_generated.dart

@@ -1,5 +1,7 @@
 // automatically generated by the FlatBuffers compiler, do not modify
-// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable
+// ignore_for_file: unused_import, unused_field, unused_element, unused_local_variable, constant_identifier_names
+
+library flatbuffers.goldens;
 
 import 'dart:typed_data' show Uint8List;
 import 'package:flat_buffers/flat_buffers.dart' as fb;

goldens/go/flatbuffers/goldens/Galaxy.go

@@ -1,6 +1,6 @@
 // Code generated by the FlatBuffers compiler. DO NOT EDIT.
 
-package Galaxy
+package goldens
 
 import (
 	flatbuffers "github.com/google/flatbuffers/go"

goldens/go/flatbuffers/goldens/Universe.go

@@ -1,6 +1,6 @@
 // Code generated by the FlatBuffers compiler. DO NOT EDIT.
 
-package Universe
+package goldens
 
 import (
 	flatbuffers "github.com/google/flatbuffers/go"

goldens/java/flatbuffers/goldens/Galaxy.java

@@ -1,5 +1,7 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+package flatbuffers.goldens;
+
 import com.google.flatbuffers.BaseVector;
 import com.google.flatbuffers.BooleanVector;
 import com.google.flatbuffers.ByteVector;
@@ -19,7 +21,7 @@ import java.nio.ByteOrder;
 
 @SuppressWarnings("unused")
 public final class Galaxy extends Table {
-  public static void ValidateVersion() { Constants.FLATBUFFERS_23_5_26(); }
+  public static void ValidateVersion() { Constants.FLATBUFFERS_24_12_23(); }
   public static Galaxy getRootAsGalaxy(ByteBuffer _bb) { return getRootAsGalaxy(_bb, new Galaxy()); }
   public static Galaxy getRootAsGalaxy(ByteBuffer _bb, Galaxy obj) { _bb.order(ByteOrder.LITTLE_ENDIAN); return (obj.__assign(_bb.getInt(_bb.position()) + _bb.position(), _bb)); }
   public void __init(int _i, ByteBuffer _bb) { __reset(_i, _bb); }

goldens/java/flatbuffers/goldens/Universe.java

@@ -1,5 +1,7 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+package flatbuffers.goldens;
+
 import com.google.flatbuffers.BaseVector;
 import com.google.flatbuffers.BooleanVector;
 import com.google.flatbuffers.ByteVector;
@@ -19,18 +21,18 @@ import java.nio.ByteOrder;
 
 @SuppressWarnings("unused")
 public final class Universe extends Table {
-  public static void ValidateVersion() { Constants.FLATBUFFERS_23_5_26(); }
+  public static void ValidateVersion() { Constants.FLATBUFFERS_24_12_23(); }
   public static Universe getRootAsUniverse(ByteBuffer _bb) { return getRootAsUniverse(_bb, new Universe()); }
   public static Universe getRootAsUniverse(ByteBuffer _bb, Universe obj) { _bb.order(ByteOrder.LITTLE_ENDIAN); return (obj.__assign(_bb.getInt(_bb.position()) + _bb.position(), _bb)); }
   public void __init(int _i, ByteBuffer _bb) { __reset(_i, _bb); }
   public Universe __assign(int _i, ByteBuffer _bb) { __init(_i, _bb); return this; }
 
   public double age() { int o = __offset(4); return o != 0 ? bb.getDouble(o + bb_pos) : 0.0; }
-  public Galaxy galaxies(int j) { return galaxies(new Galaxy(), j); }
-  public Galaxy galaxies(Galaxy obj, int j) { int o = __offset(6); return o != 0 ? obj.__assign(__indirect(__vector(o) + j * 4), bb) : null; }
+  public flatbuffers.goldens.Galaxy galaxies(int j) { return galaxies(new flatbuffers.goldens.Galaxy(), j); }
+  public flatbuffers.goldens.Galaxy galaxies(flatbuffers.goldens.Galaxy obj, int j) { int o = __offset(6); return o != 0 ? obj.__assign(__indirect(__vector(o) + j * 4), bb) : null; }
   public int galaxiesLength() { int o = __offset(6); return o != 0 ? __vector_len(o) : 0; }
-  public Galaxy.Vector galaxiesVector() { return galaxiesVector(new Galaxy.Vector()); }
-  public Galaxy.Vector galaxiesVector(Galaxy.Vector obj) { int o = __offset(6); return o != 0 ? obj.__assign(__vector(o), 4, bb) : null; }
+  public flatbuffers.goldens.Galaxy.Vector galaxiesVector() { return galaxiesVector(new flatbuffers.goldens.Galaxy.Vector()); }
+  public flatbuffers.goldens.Galaxy.Vector galaxiesVector(flatbuffers.goldens.Galaxy.Vector obj) { int o = __offset(6); return o != 0 ? obj.__assign(__vector(o), 4, bb) : null; }
 
   public static int createUniverse(FlatBufferBuilder builder,
       double age,

goldens/kotlin/flatbuffers/goldens/Galaxy.kt

@@ -1,5 +1,7 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+package flatbuffers.goldens
+
 import com.google.flatbuffers.BaseVector
 import com.google.flatbuffers.BooleanVector
 import com.google.flatbuffers.ByteVector
@@ -32,7 +34,7 @@ class Galaxy : Table() {
             return if(o != 0) bb.getLong(o + bb_pos) else 0L
         }
     companion object {
-        fun validateVersion() = Constants.FLATBUFFERS_23_5_26()
+        fun validateVersion() = Constants.FLATBUFFERS_24_12_23()
         fun getRootAsGalaxy(_bb: ByteBuffer): Galaxy = getRootAsGalaxy(_bb, Galaxy())
         fun getRootAsGalaxy(_bb: ByteBuffer, obj: Galaxy): Galaxy {
             _bb.order(ByteOrder.LITTLE_ENDIAN)

goldens/kotlin/flatbuffers/goldens/Universe.kt

@@ -1,5 +1,7 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+package flatbuffers.goldens
+
 import com.google.flatbuffers.BaseVector
 import com.google.flatbuffers.BooleanVector
 import com.google.flatbuffers.ByteVector
@@ -31,8 +33,8 @@ class Universe : Table() {
             val o = __offset(4)
             return if(o != 0) bb.getDouble(o + bb_pos) else 0.0
         }
-    fun galaxies(j: Int) : Galaxy? = galaxies(Galaxy(), j)
-    fun galaxies(obj: Galaxy, j: Int) : Galaxy? {
+    fun galaxies(j: Int) : flatbuffers.goldens.Galaxy? = galaxies(flatbuffers.goldens.Galaxy(), j)
+    fun galaxies(obj: flatbuffers.goldens.Galaxy, j: Int) : flatbuffers.goldens.Galaxy? {
         val o = __offset(6)
         return if (o != 0) {
             obj.__assign(__indirect(__vector(o) + j * 4), bb)
@@ -45,7 +47,7 @@ class Universe : Table() {
             val o = __offset(6); return if (o != 0) __vector_len(o) else 0
         }
     companion object {
-        fun validateVersion() = Constants.FLATBUFFERS_23_5_26()
+        fun validateVersion() = Constants.FLATBUFFERS_24_12_23()
         fun getRootAsUniverse(_bb: ByteBuffer): Universe = getRootAsUniverse(_bb, Universe())
         fun getRootAsUniverse(_bb: ByteBuffer, obj: Universe): Universe {
             _bb.order(ByteOrder.LITTLE_ENDIAN)

goldens/lobster/basic_generated.lobster

@@ -1,18 +1,20 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 import flatbuffers
 
+namespace flatbuffers.goldens
+
 class Galaxy
 
 class Universe
 
-class Galaxy : flatbuffers_handle
+class Galaxy : flatbuffers.handle
     def num_stars() -> int:
-        return buf_.flatbuffers_field_int64(pos_, 4, 0)
+        return flatbuffers.field_int64(buf_, pos_, 4, 0)
 
-def GetRootAsGalaxy(buf:string): return Galaxy { buf, buf.flatbuffers_indirect(0) }
+def GetRootAsGalaxy(buf:string): return Galaxy { buf, flatbuffers.indirect(buf, 0) }
 
 struct GalaxyBuilder:
-    b_:flatbuffers_builder
+    b_:flatbuffers.builder
     def start():
         b_.StartObject(1)
         return this
@@ -22,33 +24,33 @@ struct GalaxyBuilder:
     def end():
         return b_.EndObject()
 
-class Universe : flatbuffers_handle
+class Universe : flatbuffers.handle
     def age() -> float:
-        return buf_.flatbuffers_field_float64(pos_, 4, 0.0)
-    def galaxies(i:int) -> Galaxy:
-        return Galaxy { buf_, buf_.flatbuffers_indirect(buf_.flatbuffers_field_vector(pos_, 6) + i * 4) }
+        return flatbuffers.field_float64(buf_, pos_, 4, 0.0)
+    def galaxies(i:int) -> flatbuffers.goldens.Galaxy:
+        return flatbuffers.goldens.Galaxy { buf_, flatbuffers.indirect(buf_, flatbuffers.field_vector(buf_, pos_, 6) + i * 4) }
     def galaxies_length() -> int:
-        return buf_.flatbuffers_field_vector_len(pos_, 6)
+        return flatbuffers.field_vector_len(buf_, pos_, 6)
 
-def GetRootAsUniverse(buf:string): return Universe { buf, buf.flatbuffers_indirect(0) }
+def GetRootAsUniverse(buf:string): return Universe { buf, flatbuffers.indirect(buf, 0) }
 
 struct UniverseBuilder:
-    b_:flatbuffers_builder
+    b_:flatbuffers.builder
     def start():
         b_.StartObject(2)
         return this
     def add_age(age:float):
         b_.PrependFloat64Slot(0, age, 0.0)
         return this
-    def add_galaxies(galaxies:flatbuffers_offset):
+    def add_galaxies(galaxies:flatbuffers.offset):
         b_.PrependUOffsetTRelativeSlot(1, galaxies)
         return this
     def end():
         return b_.EndObject()
 
-def UniverseStartGalaxiesVector(b_:flatbuffers_builder, n_:int):
+def UniverseStartGalaxiesVector(b_:flatbuffers.builder, n_:int):
     b_.StartVector(4, n_, 4)
-def UniverseCreateGalaxiesVector(b_:flatbuffers_builder, v_:[flatbuffers_offset]):
+def UniverseCreateGalaxiesVector(b_:flatbuffers.builder, v_:[flatbuffers.offset]):
     b_.StartVector(4, v_.length, 4)
     reverse(v_) e_: b_.PrependUOffsetTRelative(e_)
     return b_.EndVector(v_.length)

goldens/lua/Galaxy.lua

@@ -3,7 +3,7 @@
   Automatically generated by the FlatBuffers compiler, do not modify.
   Or modify. I'm a message, not a cop.
 
-  flatc version: 23.5.9
+  flatc version: 23.5.26
 
   Declared by  : //basic.fbs
   Rooting type : Universe (//basic.fbs)

goldens/lua/Universe.lua

@@ -3,7 +3,7 @@
   Automatically generated by the FlatBuffers compiler, do not modify.
   Or modify. I'm a message, not a cop.
 
-  flatc version: 23.5.9
+  flatc version: 23.5.26
 
   Declared by  : //basic.fbs
   Rooting type : Universe (//basic.fbs)

goldens/nim/Galaxy.nim

@@ -2,7 +2,7 @@
   Automatically generated by the FlatBuffers compiler, do not modify.
   Or modify. I'm a message, not a cop.
 
-  flatc version: 23.5.9
+  flatc version: 23.5.26
 
   Declared by  : //basic.fbs
   Rooting type : Universe (//basic.fbs)

goldens/nim/Universe.nim

@@ -2,7 +2,7 @@
   Automatically generated by the FlatBuffers compiler, do not modify.
   Or modify. I'm a message, not a cop.
 
-  flatc version: 23.5.9
+  flatc version: 23.5.26
 
   Declared by  : //basic.fbs
   Rooting type : Universe (//basic.fbs)

goldens/php/flatbuffers/goldens/Galaxy.php

@@ -1,6 +1,8 @@
 <?php
 // automatically generated by the FlatBuffers compiler, do not modify
 
+namespace flatbuffers\goldens;
+
 use \Google\FlatBuffers\Struct;
 use \Google\FlatBuffers\Table;
 use \Google\FlatBuffers\ByteBuffer;

goldens/php/flatbuffers/goldens/Universe.php

@@ -1,6 +1,8 @@
 <?php
 // automatically generated by the FlatBuffers compiler, do not modify
 
+namespace flatbuffers\goldens;
+
 use \Google\FlatBuffers\Struct;
 use \Google\FlatBuffers\Table;
 use \Google\FlatBuffers\ByteBuffer;

goldens/py/flatbuffers/goldens/Galaxy.py

@@ -1,6 +1,6 @@
 # automatically generated by the FlatBuffers compiler, do not modify
 
-# namespace: 
+# namespace: goldens
 
 import flatbuffers
 from flatbuffers.compat import import_numpy
@@ -40,7 +40,7 @@ def Start(builder):
 def GalaxyAddNumStars(builder, numStars):
     builder.PrependInt64Slot(0, numStars, 0)
 
-def AddNumStars(builder: flatbuffers.Builder, numStars: int):
+def AddNumStars(builder, numStars):
     GalaxyAddNumStars(builder, numStars)
 
 def GalaxyEnd(builder):

goldens/py/flatbuffers/goldens/Universe.py

@@ -1,6 +1,6 @@
 # automatically generated by the FlatBuffers compiler, do not modify
 
-# namespace: 
+# namespace: goldens
 
 import flatbuffers
 from flatbuffers.compat import import_numpy
@@ -38,7 +38,7 @@ class Universe(object):
             x = self._tab.Vector(o)
             x += flatbuffers.number_types.UOffsetTFlags.py_type(j) * 4
             x = self._tab.Indirect(x)
-            from .Galaxy import Galaxy
+            from flatbuffers.goldens.Galaxy import Galaxy
             obj = Galaxy()
             obj.Init(self._tab.Bytes, x)
             return obj
@@ -65,19 +65,19 @@ def Start(builder):
 def UniverseAddAge(builder, age):
     builder.PrependFloat64Slot(0, age, 0.0)
 
-def AddAge(builder: flatbuffers.Builder, age: float):
+def AddAge(builder, age):
     UniverseAddAge(builder, age)
 
 def UniverseAddGalaxies(builder, galaxies):
     builder.PrependUOffsetTRelativeSlot(1, flatbuffers.number_types.UOffsetTFlags.py_type(galaxies), 0)
 
-def AddGalaxies(builder: flatbuffers.Builder, galaxies: int):
+def AddGalaxies(builder, galaxies):
     UniverseAddGalaxies(builder, galaxies)
 
 def UniverseStartGalaxiesVector(builder, numElems):
     return builder.StartVector(4, numElems, 4)
 
-def StartGalaxiesVector(builder, numElems: int) -> int:
+def StartGalaxiesVector(builder, numElems):
     return UniverseStartGalaxiesVector(builder, numElems)
 
 def UniverseEnd(builder):

goldens/rust/basic_generated.rs

@@ -9,6 +9,23 @@ use core::cmp::Ordering;
 extern crate flatbuffers;
 use self::flatbuffers::{EndianScalar, Follow};
 
+#[allow(unused_imports, dead_code)]
+pub mod flatbuffers {
+
+  use core::mem;
+  use core::cmp::Ordering;
+
+  extern crate flatbuffers;
+  use self::flatbuffers::{EndianScalar, Follow};
+#[allow(unused_imports, dead_code)]
+pub mod goldens {
+
+  use core::mem;
+  use core::cmp::Ordering;
+
+  extern crate flatbuffers;
+  use self::flatbuffers::{EndianScalar, Follow};
+
 pub enum GalaxyOffset {}
 #[derive(Copy, Clone, PartialEq)]
 
@@ -32,8 +49,8 @@ impl<'a> Galaxy<'a> {
     Galaxy { _tab: table }
   }
   #[allow(unused_mut)]
-  pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr>(
-    _fbb: &'mut_bldr mut flatbuffers::FlatBufferBuilder<'bldr>,
+  pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr, A: flatbuffers::Allocator + 'bldr>(
+    _fbb: &'mut_bldr mut flatbuffers::FlatBufferBuilder<'bldr, A>,
     args: &'args GalaxyArgs
   ) -> flatbuffers::WIPOffset<Galaxy<'bldr>> {
     let mut builder = GalaxyBuilder::new(_fbb);
@@ -75,17 +92,17 @@ impl<'a> Default for GalaxyArgs {
   }
 }
 
-pub struct GalaxyBuilder<'a: 'b, 'b> {
-  fbb_: &'b mut flatbuffers::FlatBufferBuilder<'a>,
+pub struct GalaxyBuilder<'a: 'b, 'b, A: flatbuffers::Allocator + 'a> {
+  fbb_: &'b mut flatbuffers::FlatBufferBuilder<'a, A>,
   start_: flatbuffers::WIPOffset<flatbuffers::TableUnfinishedWIPOffset>,
 }
-impl<'a: 'b, 'b> GalaxyBuilder<'a, 'b> {
+impl<'a: 'b, 'b, A: flatbuffers::Allocator + 'a> GalaxyBuilder<'a, 'b, A> {
   #[inline]
   pub fn add_num_stars(&mut self, num_stars: i64) {
     self.fbb_.push_slot::<i64>(Galaxy::VT_NUM_STARS, num_stars, 0);
   }
   #[inline]
-  pub fn new(_fbb: &'b mut flatbuffers::FlatBufferBuilder<'a>) -> GalaxyBuilder<'a, 'b> {
+  pub fn new(_fbb: &'b mut flatbuffers::FlatBufferBuilder<'a, A>) -> GalaxyBuilder<'a, 'b, A> {
     let start = _fbb.start_table();
     GalaxyBuilder {
       fbb_: _fbb,
@@ -130,8 +147,8 @@ impl<'a> Universe<'a> {
     Universe { _tab: table }
   }
   #[allow(unused_mut)]
-  pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr>(
-    _fbb: &'mut_bldr mut flatbuffers::FlatBufferBuilder<'bldr>,
+  pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr, A: flatbuffers::Allocator + 'bldr>(
+    _fbb: &'mut_bldr mut flatbuffers::FlatBufferBuilder<'bldr, A>,
     args: &'args UniverseArgs<'args>
   ) -> flatbuffers::WIPOffset<Universe<'bldr>> {
     let mut builder = UniverseBuilder::new(_fbb);
@@ -184,11 +201,11 @@ impl<'a> Default for UniverseArgs<'a> {
   }
 }
 
-pub struct UniverseBuilder<'a: 'b, 'b> {
-  fbb_: &'b mut flatbuffers::FlatBufferBuilder<'a>,
+pub struct UniverseBuilder<'a: 'b, 'b, A: flatbuffers::Allocator + 'a> {
+  fbb_: &'b mut flatbuffers::FlatBufferBuilder<'a, A>,
   start_: flatbuffers::WIPOffset<flatbuffers::TableUnfinishedWIPOffset>,
 }
-impl<'a: 'b, 'b> UniverseBuilder<'a, 'b> {
+impl<'a: 'b, 'b, A: flatbuffers::Allocator + 'a> UniverseBuilder<'a, 'b, A> {
   #[inline]
   pub fn add_age(&mut self, age: f64) {
     self.fbb_.push_slot::<f64>(Universe::VT_AGE, age, 0.0);
@@ -198,7 +215,7 @@ impl<'a: 'b, 'b> UniverseBuilder<'a, 'b> {
     self.fbb_.push_slot_always::<flatbuffers::WIPOffset<_>>(Universe::VT_GALAXIES, galaxies);
   }
   #[inline]
-  pub fn new(_fbb: &'b mut flatbuffers::FlatBufferBuilder<'a>) -> UniverseBuilder<'a, 'b> {
+  pub fn new(_fbb: &'b mut flatbuffers::FlatBufferBuilder<'a, A>) -> UniverseBuilder<'a, 'b, A> {
     let start = _fbb.start_table();
     UniverseBuilder {
       fbb_: _fbb,
@@ -281,13 +298,16 @@ pub unsafe fn size_prefixed_root_as_universe_unchecked(buf: &[u8]) -> Universe {
   flatbuffers::size_prefixed_root_unchecked::<Universe>(buf)
 }
 #[inline]
-pub fn finish_universe_buffer<'a, 'b>(
-    fbb: &'b mut flatbuffers::FlatBufferBuilder<'a>,
+pub fn finish_universe_buffer<'a, 'b, A: flatbuffers::Allocator + 'a>(
+    fbb: &'b mut flatbuffers::FlatBufferBuilder<'a, A>,
     root: flatbuffers::WIPOffset<Universe<'a>>) {
   fbb.finish(root, None);
 }
 
 #[inline]
-pub fn finish_size_prefixed_universe_buffer<'a, 'b>(fbb: &'b mut flatbuffers::FlatBufferBuilder<'a>, root: flatbuffers::WIPOffset<Universe<'a>>) {
+pub fn finish_size_prefixed_universe_buffer<'a, 'b, A: flatbuffers::Allocator + 'a>(fbb: &'b mut flatbuffers::FlatBufferBuilder<'a, A>, root: flatbuffers::WIPOffset<Universe<'a>>) {
   fbb.finish_size_prefixed(root, None);
 }
+}  // pub mod goldens
+}  // pub mod flatbuffers
+

goldens/schema/basic.fbs

@@ -1,6 +1,8 @@
 // This file should contain the basics of flatbuffers that all languages should
 // support.
 
+namespace flatbuffers.goldens;
+
 table Galaxy {
   num_stars:long;
 }

goldens/swift/basic_generated.swift

@@ -4,9 +4,9 @@
 
 import FlatBuffers
 
-public struct Galaxy: FlatBufferObject, Verifiable {
+public struct flatbuffers_goldens_Galaxy: FlatBufferObject, Verifiable {
 
-  static func validateVersion() { FlatBuffersVersion_23_5_26() }
+  static func validateVersion() { FlatBuffersVersion_24_12_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
   private var _accessor: Table
 
@@ -27,9 +27,9 @@ public struct Galaxy: FlatBufferObject, Verifiable {
     _ fbb: inout FlatBufferBuilder,
     numStars: Int64 = 0
   ) -> Offset {
-    let __start = Galaxy.startGalaxy(&fbb)
-    Galaxy.add(numStars: numStars, &fbb)
-    return Galaxy.endGalaxy(&fbb, start: __start)
+    let __start = flatbuffers_goldens_Galaxy.startGalaxy(&fbb)
+    flatbuffers_goldens_Galaxy.add(numStars: numStars, &fbb)
+    return flatbuffers_goldens_Galaxy.endGalaxy(&fbb, start: __start)
   }
 
   public static func verify<T>(_ verifier: inout Verifier, at position: Int, of type: T.Type) throws where T: Verifiable {
@@ -39,9 +39,9 @@ public struct Galaxy: FlatBufferObject, Verifiable {
   }
 }
 
-public struct Universe: FlatBufferObject, Verifiable {
+public struct flatbuffers_goldens_Universe: FlatBufferObject, Verifiable {
 
-  static func validateVersion() { FlatBuffersVersion_23_5_26() }
+  static func validateVersion() { FlatBuffersVersion_24_12_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
   private var _accessor: Table
 
@@ -58,7 +58,7 @@ public struct Universe: FlatBufferObject, Verifiable {
   public var age: Double { let o = _accessor.offset(VTOFFSET.age.v); return o == 0 ? 0.0 : _accessor.readBuffer(of: Double.self, at: o) }
   public var hasGalaxies: Bool { let o = _accessor.offset(VTOFFSET.galaxies.v); return o == 0 ? false : true }
   public var galaxiesCount: Int32 { let o = _accessor.offset(VTOFFSET.galaxies.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func galaxies(at index: Int32) -> Galaxy? { let o = _accessor.offset(VTOFFSET.galaxies.v); return o == 0 ? nil : Galaxy(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 4)) }
+  public func galaxies(at index: Int32) -> flatbuffers_goldens_Galaxy? { let o = _accessor.offset(VTOFFSET.galaxies.v); return o == 0 ? nil : flatbuffers_goldens_Galaxy(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 4)) }
   public static func startUniverse(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 2) }
   public static func add(age: Double, _ fbb: inout FlatBufferBuilder) { fbb.add(element: age, def: 0.0, at: VTOFFSET.age.p) }
   public static func addVectorOf(galaxies: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: galaxies, at: VTOFFSET.galaxies.p) }
@@ -68,16 +68,16 @@ public struct Universe: FlatBufferObject, Verifiable {
     age: Double = 0.0,
     galaxiesVectorOffset galaxies: Offset = Offset()
   ) -> Offset {
-    let __start = Universe.startUniverse(&fbb)
-    Universe.add(age: age, &fbb)
-    Universe.addVectorOf(galaxies: galaxies, &fbb)
-    return Universe.endUniverse(&fbb, start: __start)
+    let __start = flatbuffers_goldens_Universe.startUniverse(&fbb)
+    flatbuffers_goldens_Universe.add(age: age, &fbb)
+    flatbuffers_goldens_Universe.addVectorOf(galaxies: galaxies, &fbb)
+    return flatbuffers_goldens_Universe.endUniverse(&fbb, start: __start)
   }
 
   public static func verify<T>(_ verifier: inout Verifier, at position: Int, of type: T.Type) throws where T: Verifiable {
     var _v = try verifier.visitTable(at: position)
     try _v.visit(field: VTOFFSET.age.p, fieldName: "age", required: false, type: Double.self)
-    try _v.visit(field: VTOFFSET.galaxies.p, fieldName: "galaxies", required: false, type: ForwardOffset<Vector<ForwardOffset<Galaxy>, Galaxy>>.self)
+    try _v.visit(field: VTOFFSET.galaxies.p, fieldName: "galaxies", required: false, type: ForwardOffset<Vector<ForwardOffset<flatbuffers_goldens_Galaxy>, flatbuffers_goldens_Galaxy>>.self)
     _v.finish()
   }
 }

goldens/ts/basic.ts

@@ -1,4 +1,6 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+/* eslint-disable @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any, @typescript-eslint/no-non-null-assertion */
+
 export { Galaxy } from './galaxy.js';
 export { Universe } from './universe.js';

goldens/ts/flatbuffers/goldens.ts

@@ -0,0 +1,6 @@
+// automatically generated by the FlatBuffers compiler, do not modify
+
+/* eslint-disable @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any, @typescript-eslint/no-non-null-assertion */
+
+export { Galaxy } from './goldens/galaxy.js';
+export { Universe } from './goldens/universe.js';

goldens/ts/flatbuffers/goldens/galaxy.ts

@@ -1,5 +1,7 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+/* eslint-disable @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any, @typescript-eslint/no-non-null-assertion */
+
 import * as flatbuffers from 'flatbuffers';
 
 export class Galaxy {

goldens/ts/flatbuffers/goldens/universe.ts

@@ -1,8 +1,10 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+/* eslint-disable @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any, @typescript-eslint/no-non-null-assertion */
+
 import * as flatbuffers from 'flatbuffers';
 
-import { Galaxy } from './galaxy.js';
+import { Galaxy } from '../../flatbuffers/goldens/galaxy.js';
 
 
 export class Universe {

grpc/boringssl.patch

@@ -11,3 +11,31 @@ index 1645a264a..12f8ca999 100644
  add_executable(
    bssl
  
+diff --git a/src/crypto/x509/t_x509.c b/src/crypto/x509/t_x509.c
+index 7c32a8798..6e50d040e 100644
+--- a/src/crypto/x509/t_x509.c
++++ b/src/crypto/x509/t_x509.c
+@@ -318,9 +318,7 @@ int X509_signature_print(BIO *bp, const X509_ALGOR *sigalg,
+ int X509_NAME_print(BIO *bp, const X509_NAME *name, int obase)
+ {
+     char *s, *c, *b;
+-    int ret = 0, l, i;
+-
+-    l = 80 - 2 - obase;
++    int ret = 0, i;
+
+     b = X509_NAME_oneline(name, NULL, 0);
+     if (!b)
+@@ -347,12 +345,10 @@ int X509_NAME_print(BIO *bp, const X509_NAME *name, int obase)
+                 if (BIO_write(bp, ", ", 2) != 2)
+                     goto err;
+             }
+-            l--;
+         }
+         if (*s == '\0')
+             break;
+         s++;
+-        l--;
+     }
+
+     ret = 1;

grpc/build_grpc_with_cxx14.patch

@@ -2,9 +2,12 @@ diff --git a/bazel/copts.bzl b/bazel/copts.bzl
 index 10be944f25..879518b92f 100644
 --- a/bazel/copts.bzl
 +++ b/bazel/copts.bzl
-@@ -59,4 +59,4 @@ GRPC_LLVM_WARNING_FLAGS = [
+@@ -59,4 +59,7 @@ GRPC_LLVM_WARNING_FLAGS = [
  GRPC_DEFAULT_COPTS = select({
      "//:use_strict_warning": GRPC_LLVM_WARNING_FLAGS + ["-DUSE_STRICT_WARNING=1"],
      "//conditions:default": [],
 -})
-+}) + ["-std=c++14"]
++}) + select({
++        "@bazel_tools//src/conditions:windows": ["/std:c++14"],
++        "//conditions:default": ["-std=c++14"],
++})

grpc/examples/go/greeter/client/go.mod

@@ -5,7 +5,7 @@ go 1.15
 replace github.com/google/flatbuffers/grpc/examples/go/greeter/models v0.0.0 => ../models
 
 require (
-	github.com/google/flatbuffers v1.12.0
+	github.com/google/flatbuffers v2.0.8+incompatible
 	github.com/google/flatbuffers/grpc/examples/go/greeter/models v0.0.0
-	google.golang.org/grpc v1.35.0
+	google.golang.org/grpc v1.56.3
 )

grpc/examples/go/greeter/models/go.mod

@@ -3,6 +3,6 @@ module github.com/google/flatbuffers/grpc/examples/go/greeter/models
 go 1.15
 
 require (
-	github.com/google/flatbuffers v1.12.0
-	google.golang.org/grpc v1.35.0
+	github.com/google/flatbuffers v2.0.8+incompatible
+	google.golang.org/grpc v1.56.3
 )

grpc/examples/go/greeter/server/go.mod

@@ -5,7 +5,7 @@ go 1.15
 replace github.com/google/flatbuffers/grpc/examples/go/greeter/models v0.0.0 => ../models
 
 require (
-	github.com/google/flatbuffers v1.12.0
+	github.com/google/flatbuffers v2.0.8+incompatible
 	github.com/google/flatbuffers/grpc/examples/go/greeter/models v0.0.0
-	google.golang.org/grpc v1.39.0-dev
+	google.golang.org/grpc v1.56.3
 )

grpc/examples/python/greeter/greeter_grpc.fb.py

@@ -0,0 +1,54 @@
+# Generated by the gRPC FlatBuffers compiler. DO NOT EDIT!
+
+import flatbuffers
+import grpc
+
+from models.HelloReply import HelloReply
+from models.HelloRequest import HelloRequest
+
+
+class GreeterStub(object):
+  '''Interface exported by the server.'''
+
+  def __init__(self, channel):
+    '''Constructor.
+
+    Args:
+      channel: A grpc.Channel.
+    '''
+
+    self.SayHello = channel.unary_unary(
+      method='/models.Greeter/SayHello')
+
+    self.SayManyHellos = channel.unary_stream(
+      method='/models.Greeter/SayManyHellos')
+
+
+class GreeterServicer(object):
+  '''Interface exported by the server.'''
+
+  def SayHello(self, request, context):
+    context.set_code(grpc.StatusCode.UNIMPLEMENTED)
+    context.set_details('Method not implemented!')
+    raise NotImplementedError('Method not implemented!')
+
+  def SayManyHellos(self, request, context):
+    context.set_code(grpc.StatusCode.UNIMPLEMENTED)
+    context.set_details('Method not implemented!')
+    raise NotImplementedError('Method not implemented!')
+
+
+def add_GreeterServicer_to_server(servicer, server):
+  rpc_method_handlers = {
+    'SayHello': grpc.unary_unary_rpc_method_handler(
+      servicer.SayHello),
+    'SayManyHellos': grpc.unary_stream_rpc_method_handler(
+      servicer.SayManyHellos),
+  }
+
+  generic_handler = grpc.method_handlers_generic_handler(
+    'models.Greeter', rpc_method_handlers)
+
+  server.add_generic_rpc_handlers((generic_handler,))
+
+

grpc/examples/swift/Greeter/Sources/Model/greeter_generated.swift

@@ -6,7 +6,7 @@ import FlatBuffers
 
 public struct models_HelloReply: FlatBufferObject, Verifiable {
 
-  static func validateVersion() { FlatBuffersVersion_23_5_26() }
+  static func validateVersion() { FlatBuffersVersion_24_12_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
   private var _accessor: Table
 
@@ -53,7 +53,7 @@ extension models_HelloReply: Encodable {
 
 public struct models_HelloRequest: FlatBufferObject, Verifiable {
 
-  static func validateVersion() { FlatBuffersVersion_23_5_26() }
+  static func validateVersion() { FlatBuffersVersion_24_12_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
   private var _accessor: Table
 

grpc/examples/swift/Greeter/Sources/client/main.swift

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 Google Inc. All rights reserved.
+ * Copyright 2024 Google Inc. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

grpc/examples/swift/Greeter/Sources/server/main.swift

@@ -1,5 +1,5 @@
 /*
- * Copyright 2023 Google Inc. All rights reserved.
+ * Copyright 2024 Google Inc. All rights reserved.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

grpc/examples/ts/greeter/src/greeter.ts

@@ -1,3 +1,5 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+/* eslint-disable @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any, @typescript-eslint/no-non-null-assertion */
+
 export * as models from './models.js';

grpc/examples/ts/greeter/src/models.ts

@@ -1,4 +1,6 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+/* eslint-disable @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any, @typescript-eslint/no-non-null-assertion */
+
 export { HelloReply } from './models/hello-reply.js';
 export { HelloRequest } from './models/hello-request.js';

grpc/examples/ts/greeter/src/models/hello-reply.ts

@@ -1,5 +1,7 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+/* eslint-disable @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any, @typescript-eslint/no-non-null-assertion */
+
 import * as flatbuffers from 'flatbuffers';
 
 

grpc/examples/ts/greeter/src/models/hello-request.ts

@@ -1,5 +1,7 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 
+/* eslint-disable @typescript-eslint/no-unused-vars, @typescript-eslint/no-explicit-any, @typescript-eslint/no-non-null-assertion */
+
 import * as flatbuffers from 'flatbuffers';
 
 

grpc/flatbuffers-java-grpc/pom.xml

@@ -24,7 +24,7 @@
         </developer>
     </developers>
     <properties>
-        <gRPC.version>1.36.0</gRPC.version>
+        <gRPC.version>1.67.1</gRPC.version>
     </properties>
     <dependencies>
         <dependency>

grpc/src/compiler/BUILD.bazel

@@ -95,6 +95,8 @@ cc_library(
     visibility = ["//visibility:private"],
     deps = [
         "//:flatbuffers",
+        "//include/codegen:namer",
+        "//include/codegen:python",
     ],
 )
 

grpc/src/compiler/cpp_generator.cc

@@ -8,8 +8,6 @@
 namespace grpc_cpp_generator {
 namespace {
 
-static grpc::string service_header_ext() { return ".grpc.fb.h"; }
-
 template<class T>
 static grpc::string as_string(T x) {
   std::ostringstream out;
@@ -1137,7 +1135,7 @@ grpc::string GetSourcePrologue(grpc_generator::File *file,
     vars["filename"] = file->filename();
     vars["filename_base"] = file->filename_without_ext();
     vars["message_header_ext"] = params.message_header_extension;
-    vars["service_header_ext"] = service_header_ext();
+    vars["service_header_ext"] = params.service_header_extension;
 
     printer->Print(vars, "// Generated by the gRPC C++ plugin.\n");
     printer->Print(vars,
@@ -1557,7 +1555,7 @@ grpc::string GetMockPrologue(grpc_generator::File *file,
     vars["filename"] = file->filename();
     vars["filename_base"] = file->filename_without_ext();
     vars["message_header_ext"] = params.message_header_extension;
-    vars["service_header_ext"] = service_header_ext();
+    vars["service_header_ext"] = params.service_header_extension;
 
     printer->Print(vars, "// Generated by the gRPC C++ plugin.\n");
     printer->Print(vars,

grpc/src/compiler/cpp_generator.h

@@ -35,6 +35,8 @@ struct Parameters {
   bool generate_mock_code;
   // By default, use "_generated.h"
   std::string message_header_extension;
+  // Default: ".grpc.fb.h"
+  std::string service_header_extension;
 };
 
 // Return the prologue of the generated header file.

grpc/src/compiler/python_generator.cc

@@ -16,136 +16,365 @@
  *
  */
 
-#include <map>
-#include <sstream>
-
-#include "flatbuffers/util.h"
 #include "src/compiler/python_generator.h"
 
-namespace grpc_python_generator {
+#include <algorithm>
+#include <cstddef>
+#include <map>
+#include <set>
+#include <sstream>
+#include <string>
+
+#include "codegen/idl_namer.h"
+#include "codegen/namer.h"
+#include "codegen/python.h"
+#include "flatbuffers/idl.h"
+#include "flatbuffers/util.h"
+
+namespace flatbuffers {
+namespace python {
+namespace grpc {
 namespace {
-
-static grpc::string GenerateMethodType(const grpc_generator::Method *method) {
-
-  if (method->NoStreaming())
-    return "unary_unary";
-
-  if (method->ServerStreaming())
-    return "unary_stream";
-
-  if (method->ClientStreaming())
-    return "stream_unary";
-
-  return "stream_stream";
+bool ClientStreaming(const RPCCall *method) {
+  const Value *val = method->attributes.Lookup("streaming");
+  return val != nullptr && (val->constant == "client" || val->constant == "bidi");
 }
 
-grpc::string GenerateMethodInput(const grpc_generator::Method *method) {
-
-  if (method->NoStreaming() || method->ServerStreaming())
-    return "self, request, context";
-
-  return "self, request_iterator, context";
+bool ServerStreaming(const RPCCall *method) {
+  const Value *val = method->attributes.Lookup("streaming");
+  return val != nullptr && (val->constant == "server" || val->constant == "bidi");
 }
 
-void GenerateStub(const grpc_generator::Service *service,
-                  grpc_generator::Printer *printer,
-                  std::map<grpc::string, grpc::string> *dictonary) {
-  auto vars = *dictonary;
-  printer->Print(vars, "class $ServiceName$Stub(object):\n");
-  printer->Indent();
-  printer->Print("\"\"\" Interface exported by the server. \"\"\"");
-  printer->Print("\n\n");
-  printer->Print("def __init__(self, channel):\n");
-  printer->Indent();
-  printer->Print("\"\"\" Constructor. \n\n");
-  printer->Print("Args: \n");
-  printer->Print("channel: A grpc.Channel. \n");
-  printer->Print("\"\"\"\n\n");
-
-  for (int j = 0; j < service->method_count(); j++) {
-    auto method = service->method(j);
-    vars["MethodName"] = method->name();
-    vars["MethodType"] = GenerateMethodType(&*method);
-    printer->Print(vars, "self.$MethodName$ = channel.$MethodType$(\n");
-    printer->Indent();
-    printer->Print(vars, "\"/$PATH$$ServiceName$/$MethodName$\"\n");
-    printer->Print(")\n");
-    printer->Outdent();
-    printer->Print("\n");
+void FormatImports(std::stringstream &ss, const Imports &imports) {
+  std::set<std::string> modules;
+  std::map<std::string, std::set<std::string>> names_by_module;
+  for (const Import &import : imports.imports) {
+    if (import.IsLocal()) continue;  // skip all local imports
+    if (import.name == "") {
+      modules.insert(import.module);
+    } else {
+      names_by_module[import.module].insert(import.name);
+    }
   }
-  printer->Outdent();
-  printer->Outdent();
-  printer->Print("\n");
-}
 
-void GenerateServicer(const grpc_generator::Service *service,
-                      grpc_generator::Printer *printer,
-                      std::map<grpc::string, grpc::string> *dictonary) {
-  auto vars = *dictonary;
-  printer->Print(vars, "class $ServiceName$Servicer(object):\n");
-  printer->Indent();
-  printer->Print("\"\"\" Interface exported by the server. \"\"\"");
-  printer->Print("\n\n");
-
-  for (int j = 0; j < service->method_count(); j++) {
-    auto method = service->method(j);
-    vars["MethodName"] = method->name();
-    vars["MethodInput"] = GenerateMethodInput(&*method);
-    printer->Print(vars, "def $MethodName$($MethodInput$):\n");
-    printer->Indent();
-    printer->Print("context.set_code(grpc.StatusCode.UNIMPLEMENTED)\n");
-    printer->Print("context.set_details('Method not implemented!')\n");
-    printer->Print("raise NotImplementedError('Method not implemented!')\n");
-    printer->Outdent();
-    printer->Print("\n\n");
+  for (const std::string &module : modules) {
+    ss << "import " << module << '\n';
   }
-  printer->Outdent();
-  printer->Print("\n");
-
-}
-
-void GenerateRegister(const grpc_generator::Service *service,
-                      grpc_generator::Printer *printer,
-                      std::map<grpc::string, grpc::string> *dictonary) {
-  auto vars = *dictonary;
-  printer->Print(vars, "def add_$ServiceName$Servicer_to_server(servicer, server):\n");
-  printer->Indent();
-  printer->Print("rpc_method_handlers = {\n");
-  printer->Indent();
-  for (int j = 0; j < service->method_count(); j++) {
-    auto method = service->method(j);
-    vars["MethodName"] = method->name();
-    vars["MethodType"] = GenerateMethodType(&*method);
-    printer->Print(vars, "'$MethodName$': grpc.$MethodType$_rpc_method_handler(\n");
-    printer->Indent();
-    printer->Print(vars, "servicer.$MethodName$\n");
-    printer->Outdent();
-    printer->Print("),\n");
+  ss << '\n';
+  for (const auto &import : names_by_module) {
+    ss << "from " << import.first << " import ";
+    size_t i = 0;
+    for (const std::string &name : import.second) {
+      if (i > 0) ss << ", ";
+      ss << name;
+      ++i;
+    }
+    ss << '\n';
   }
-  printer->Outdent();
-  printer->Print("}\n");
-  printer->Print(vars, "generic_handler = grpc.method_handlers_generic_handler(\n");
-  printer->Indent();
-  printer->Print(vars, "'$PATH$$ServiceName$', rpc_method_handlers)\n");
-  printer->Outdent();
-  printer->Print("server.add_generic_rpc_handlers((generic_handler,))");
-  printer->Outdent();
-  printer->Print("\n");
-}
-} // namespace
-
-grpc::string Generate(grpc_generator::File *file,
-                      const grpc_generator::Service *service) {
-  grpc::string output;
-  std::map<grpc::string, grpc::string> vars;
-  vars["PATH"] = file->package();
-  if (!file->package().empty()) { vars["PATH"].append("."); }
-  vars["ServiceName"] = service->name();
-  auto printer = file->CreatePrinter(&output);
-  GenerateStub(service, &*printer, &vars);
-  GenerateServicer(service, &*printer, &vars);
-  GenerateRegister(service, &*printer, &vars);
-  return output;
+  ss << "\n\n";
 }
 
-}  // namespace grpc_python_generator
+bool SaveStub(const std::string &filename, const Imports &imports,
+              const std::string &content) {
+  std::stringstream ss;
+  ss << "# Generated by the gRPC FlatBuffers compiler. DO NOT EDIT!\n"
+     << '\n'
+     << "from __future__ import annotations\n"
+     << '\n';
+  FormatImports(ss, imports);
+  ss << content << '\n';
+
+  EnsureDirExists(StripFileName(filename));
+  return flatbuffers::SaveFile(filename.c_str(), ss.str(), false);
+}
+
+bool SaveService(const std::string &filename, const Imports &imports,
+                 const std::string &content) {
+  std::stringstream ss;
+  ss << "# Generated by the gRPC FlatBuffers compiler. DO NOT EDIT!\n" << '\n';
+  FormatImports(ss, imports);
+  ss << content << '\n';
+
+  EnsureDirExists(StripFileName(filename));
+  return flatbuffers::SaveFile(filename.c_str(), ss.str(), false);
+}
+
+class BaseGenerator {
+ protected:
+  BaseGenerator(const Parser &parser, const Namer::Config &config,
+                const std::string &path, const Version &version)
+      : parser_{parser},
+        namer_{WithFlagOptions(config, parser.opts, path), Keywords(version)},
+        version_{version} {}
+
+ protected:
+  std::string ModuleForFile(const std::string &file) const {
+    std::string module = parser_.opts.include_prefix + StripExtension(file) +
+                         parser_.opts.filename_suffix;
+    std::replace(module.begin(), module.end(), '/', '.');
+    return module;
+  }
+
+  template <typename T>
+  std::string ModuleFor(const T *def) const {
+    if (parser_.opts.one_file) return ModuleForFile(def->file);
+    return namer_.NamespacedType(*def);
+  }
+
+  const Parser &parser_;
+  const IdlNamer namer_;
+  const Version version_;
+};
+
+class StubGenerator : public BaseGenerator {
+ public:
+  StubGenerator(const Parser &parser, const std::string &path,
+                const Version &version)
+      : BaseGenerator(parser, kStubConfig, path, version) {}
+
+  bool Generate() {
+    Imports imports;
+    std::stringstream stub;
+    for (const ServiceDef *service : parser_.services_.vec) {
+      Generate(stub, service, &imports);
+    }
+
+    std::string filename =
+        namer_.config_.output_path +
+        StripPath(StripExtension(parser_.file_being_parsed_)) + "_grpc" +
+        parser_.opts.grpc_filename_suffix + namer_.config_.filename_extension;
+
+    return SaveStub(filename, imports, stub.str());
+  }
+
+ private:
+  void Generate(std::stringstream &ss, const ServiceDef *service,
+                Imports *imports) {
+    imports->Import("grpc");
+
+    ss << "class " << service->name << "Stub(object):\n"
+       << "  def __init__(self, channel: grpc.Channel) -> None: ...\n";
+
+    for (const RPCCall *method : service->calls.vec) {
+      std::string request = "bytes";
+      std::string response = "bytes";
+
+      if (parser_.opts.grpc_python_typed_handlers) {
+        request = namer_.Type(*method->request);
+        response = namer_.Type(*method->response);
+
+        imports->Import(ModuleFor(method->request), request);
+        imports->Import(ModuleFor(method->response), response);
+      }
+
+      ss << "  def " << method->name << "(self, ";
+      if (ClientStreaming(method)) {
+        imports->Import("typing");
+        ss << "request_iterator: typing.Iterator[" << request << "]";
+      } else {
+        ss << "request: " << request;
+      }
+      ss << ") -> ";
+      if (ServerStreaming(method)) {
+        imports->Import("typing");
+        ss << "typing.Iterator[" << response << "]";
+      } else {
+        ss << response;
+      }
+      ss << ": ...\n";
+    }
+
+    ss << "\n\n";
+    ss << "class " << service->name << "Servicer(object):\n";
+
+    for (const RPCCall *method : service->calls.vec) {
+      std::string request = "bytes";
+      std::string response = "bytes";
+
+      if (parser_.opts.grpc_python_typed_handlers) {
+        request = namer_.Type(*method->request);
+        response = namer_.Type(*method->response);
+
+        imports->Import(ModuleFor(method->request), request);
+        imports->Import(ModuleFor(method->response), response);
+      }
+
+      ss << "  def " << method->name << "(self, ";
+      if (ClientStreaming(method)) {
+        imports->Import("typing");
+        ss << "request_iterator: typing.Iterator[" << request << "]";
+      } else {
+        ss << "request: " << request;
+      }
+      ss << ", context: grpc.ServicerContext) -> ";
+      if (ServerStreaming(method)) {
+        imports->Import("typing");
+        ss << "typing.Iterator[" << response << "]";
+      } else {
+        ss << response;
+      }
+      ss << ": ...\n";
+    }
+
+    ss << '\n'
+       << '\n'
+       << "def add_" << service->name
+       << "Servicer_to_server(servicer: " << service->name
+       << "Servicer, server: grpc.Server) -> None: ...\n";
+  }
+};
+
+class ServiceGenerator : public BaseGenerator {
+ public:
+  ServiceGenerator(const Parser &parser, const std::string &path,
+                   const Version &version)
+      : BaseGenerator(parser, kConfig, path, version) {}
+
+  bool Generate() {
+    Imports imports;
+    std::stringstream ss;
+
+    imports.Import("flatbuffers");
+
+    if (parser_.opts.grpc_python_typed_handlers) {
+      ss << "def _serialize_to_bytes(table):\n"
+         << "  buf = table._tab.Bytes\n"
+         << "  n = flatbuffers.encode.Get(flatbuffers.packer.uoffset, buf, 0)\n"
+         << "  if table._tab.Pos != n:\n"
+         << "    raise ValueError('must be a top-level table')\n"
+         << "  return bytes(buf)\n"
+         << '\n'
+         << '\n';
+    }
+
+    for (const ServiceDef *service : parser_.services_.vec) {
+      GenerateStub(ss, service, &imports);
+      GenerateServicer(ss, service, &imports);
+      GenerateRegister(ss, service, &imports);
+    }
+
+    std::string filename =
+        namer_.config_.output_path +
+        StripPath(StripExtension(parser_.file_being_parsed_)) + "_grpc" +
+        parser_.opts.grpc_filename_suffix + namer_.config_.filename_extension;
+
+    return SaveService(filename, imports, ss.str());
+  }
+
+ private:
+  void GenerateStub(std::stringstream &ss, const ServiceDef *service,
+                    Imports *imports) {
+    ss << "class " << service->name << "Stub";
+    if (version_.major != 3) ss << "(object)";
+    ss << ":\n"
+       << "  '''Interface exported by the server.'''\n"
+       << '\n'
+       << "  def __init__(self, channel):\n"
+       << "    '''Constructor.\n"
+       << '\n'
+       << "    Args:\n"
+       << "      channel: A grpc.Channel.\n"
+       << "    '''\n"
+       << '\n';
+
+    for (const RPCCall *method : service->calls.vec) {
+      std::string response = namer_.Type(*method->response);
+
+      imports->Import(ModuleFor(method->response), response);
+
+      ss << "    self." << method->name << " = channel."
+         << (ClientStreaming(method) ? "stream" : "unary") << "_"
+         << (ServerStreaming(method) ? "stream" : "unary") << "(\n"
+         << "      method='/"
+         << service->defined_namespace->GetFullyQualifiedName(service->name)
+         << "/" << method->name << "'";
+
+      if (parser_.opts.grpc_python_typed_handlers) {
+        ss << ",\n"
+           << "      request_serializer=_serialize_to_bytes,\n"
+           << "      response_deserializer=" << response << ".GetRootAs";
+      }
+      ss << ")\n\n";
+    }
+
+    ss << '\n';
+  }
+
+  void GenerateServicer(std::stringstream &ss, const ServiceDef *service,
+                        Imports *imports) {
+    imports->Import("grpc");
+
+    ss << "class " << service->name << "Servicer";
+    if (version_.major != 3) ss << "(object)";
+    ss << ":\n"
+       << "  '''Interface exported by the server.'''\n"
+       << '\n';
+
+    for (const RPCCall *method : service->calls.vec) {
+      const std::string request_param =
+          ClientStreaming(method) ? "request_iterator" : "request";
+      ss << "  def " << method->name << "(self, " << request_param
+         << ", context):\n"
+         << "    context.set_code(grpc.StatusCode.UNIMPLEMENTED)\n"
+         << "    context.set_details('Method not implemented!')\n"
+         << "    raise NotImplementedError('Method not implemented!')\n"
+         << '\n';
+    }
+
+    ss << '\n';
+  }
+
+  void GenerateRegister(std::stringstream &ss, const ServiceDef *service,
+                        Imports *imports) {
+    imports->Import("grpc");
+
+    ss << "def add_" << service->name
+       << "Servicer_to_server(servicer, server):\n"
+       << "  rpc_method_handlers = {\n";
+
+    for (const RPCCall *method : service->calls.vec) {
+      std::string request = namer_.Type(*method->request);
+
+      imports->Import(ModuleFor(method->request), request);
+
+      ss << "    '" << method->name << "': grpc."
+         << (ClientStreaming(method) ? "stream" : "unary") << "_"
+         << (ServerStreaming(method) ? "stream" : "unary")
+         << "_rpc_method_handler(\n"
+         << "      servicer." << method->name;
+
+      if (parser_.opts.grpc_python_typed_handlers) {
+        ss << ",\n"
+           << "      request_deserializer=" << request << ".GetRootAs,\n"
+           << "      response_serializer=_serialize_to_bytes";
+      }
+      ss << "),\n";
+    }
+    ss << "  }\n"
+       << '\n'
+       << "  generic_handler = grpc.method_handlers_generic_handler(\n"
+       << "    '"
+       << service->defined_namespace->GetFullyQualifiedName(service->name)
+       << "', rpc_method_handlers)\n"
+       << '\n'
+       << "  server.add_generic_rpc_handlers((generic_handler,))\n"
+       << '\n';
+  }
+};
+}  // namespace
+
+bool Generate(const Parser &parser, const std::string &path,
+              const Version &version) {
+  ServiceGenerator generator{parser, path, version};
+  return generator.Generate();
+}
+
+bool GenerateStub(const Parser &parser, const std::string &path,
+                  const Version &version) {
+  StubGenerator generator{parser, path, version};
+  return generator.Generate();
+}
+
+}  // namespace grpc
+}  // namespace python
+}  // namespace flatbuffers

grpc/src/compiler/python_generator.h

@@ -19,14 +19,21 @@
 #ifndef GRPC_INTERNAL_COMPILER_PYTHON_GENERATOR_H
 #define GRPC_INTERNAL_COMPILER_PYTHON_GENERATOR_H
 
-#include <utility>
+#include <string>
 
-#include "src/compiler/schema_interface.h"
+#include "codegen/python.h"
+#include "flatbuffers/idl.h"
 
-namespace grpc_python_generator {
+namespace flatbuffers {
+namespace python {
+namespace grpc {
+bool Generate(const Parser &parser, const std::string &path,
+              const Version &version);
 
-grpc::string Generate(grpc_generator::File *file,
-                      const grpc_generator::Service *service);
-}  // namespace grpc_python_generator
+bool GenerateStub(const Parser &parser, const std::string &path,
+                  const Version &version);
+}  // namespace grpc
+}  // namespace python
+}  // namespace flatbuffers
 
 #endif  // GRPC_INTERNAL_COMPILER_PYTHON_GENERATOR_H

include/codegen/BUILD.bazel

@@ -0,0 +1,39 @@
+load("@rules_cc//cc:defs.bzl", "cc_library")
+
+package(
+    default_visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "distribution",
+    srcs = [
+        "BUILD.bazel",
+    ] + glob([
+        "*.cc",
+        "*.h",
+    ]),
+    visibility = ["//visibility:public"],
+)
+
+cc_library(
+    name = "namer",
+    hdrs = [
+        "idl_namer.h",
+        "namer.h",
+    ],
+    strip_include_prefix = "/include",
+    visibility = ["//:__subpackages__"],
+    deps = ["//:runtime_cc"],
+)
+
+cc_library(
+    name = "python",
+    srcs = ["python.cc"],
+    hdrs = ["python.h"],
+    strip_include_prefix = "/include",
+    visibility = [
+        "//grpc:__subpackages__",
+        "//src:__subpackages__",
+    ],
+    deps = [":namer"],
+)

include/codegen/idl_namer.h

@@ -0,0 +1,179 @@
+#ifndef FLATBUFFERS_INCLUDE_CODEGEN_IDL_NAMER_H_
+#define FLATBUFFERS_INCLUDE_CODEGEN_IDL_NAMER_H_
+
+#include "codegen/namer.h"
+#include "flatbuffers/idl.h"
+
+namespace flatbuffers {
+
+// Provides Namer capabilities to types defined in the flatbuffers IDL.
+class IdlNamer : public Namer {
+ public:
+  explicit IdlNamer(Config config, std::set<std::string> keywords)
+      : Namer(config, std::move(keywords)) {}
+
+  using Namer::Constant;
+  using Namer::Directories;
+  using Namer::Field;
+  using Namer::File;
+  using Namer::Function;
+  using Namer::Method;
+  using Namer::Namespace;
+  using Namer::NamespacedType;
+  using Namer::ObjectType;
+  using Namer::Type;
+  using Namer::Variable;
+  using Namer::Variant;
+
+  std::string Constant(const FieldDef &d) const { return Constant(d.name); }
+
+  // Types are always structs or enums so we can only expose these two
+  // overloads.
+  std::string Type(const StructDef &d) const { return Type(d.name); }
+  std::string Type(const EnumDef &d) const { return Type(d.name); }
+
+  std::string Function(const Definition &s) const { return Function(s.name); }
+  std::string Function(const std::string& prefix, const Definition &s) const {
+    return Function(prefix + s.name);
+  }
+
+  std::string Field(const FieldDef &s) const { return Field(s.name); }
+  std::string Field(const FieldDef &d, const std::string &s) const {
+    return Field(d.name + "_" + s);
+  }
+
+  std::string Variable(const FieldDef &s) const { return Variable(s.name); }
+
+  std::string Variable(const StructDef &s) const { return Variable(s.name); }
+
+  std::string Variant(const EnumVal &s) const { return Variant(s.name); }
+
+  std::string EnumVariant(const EnumDef &e, const EnumVal &v) const {
+    return Type(e) + config_.enum_variant_seperator + Variant(v);
+  }
+
+  std::string ObjectType(const StructDef &d) const {
+    return ObjectType(d.name);
+  }
+  std::string ObjectType(const EnumDef &d) const { return ObjectType(d.name); }
+
+  std::string Method(const FieldDef &d, const std::string &suffix) const {
+    return Method(d.name, suffix);
+  }
+  std::string Method(const std::string &prefix, const StructDef &d) const {
+    return Method(prefix, d.name);
+  }
+  std::string Method(const std::string &prefix, const FieldDef &d) const {
+    return Method(prefix, d.name);
+  }
+  std::string Method(const std::string &prefix, const FieldDef &d,
+                     const std::string &suffix) const {
+    return Method(prefix, d.name, suffix);
+  }
+
+  std::string Namespace(const struct Namespace &ns) const {
+    return Namespace(ns.components);
+  }
+
+  std::string NamespacedEnumVariant(const EnumDef &e, const EnumVal &v) const {
+    return NamespacedString(e.defined_namespace, EnumVariant(e, v));
+  }
+
+  std::string NamespacedType(const Definition &def) const {
+    return NamespacedString(def.defined_namespace, Type(def.name));
+  }
+
+  std::string NamespacedObjectType(const Definition &def) const {
+    return NamespacedString(def.defined_namespace, ObjectType(def.name));
+  }
+
+  std::string Directories(const struct Namespace &ns,
+                          SkipDir skips = SkipDir::None,
+                          Case input_case = Case::kUpperCamel) const {
+    return Directories(ns.components, skips, input_case);
+  }
+
+  // Legacy fields do not really follow the usual config and should be
+  // considered for deprecation.
+
+  std::string LegacyRustNativeVariant(const EnumVal &v) const {
+    return ConvertCase(EscapeKeyword(v.name), Case::kUpperCamel);
+  }
+
+  std::string LegacyRustFieldOffsetName(const FieldDef &field) const {
+    return "VT_" + ConvertCase(EscapeKeyword(field.name), Case::kAllUpper);
+  }
+    std::string LegacyRustUnionTypeOffsetName(const FieldDef &field) const {
+    return "VT_" + ConvertCase(EscapeKeyword(field.name + "_type"), Case::kAllUpper);
+  }
+
+
+  std::string LegacySwiftVariant(const EnumVal &ev) const {
+    auto name = ev.name;
+    if (isupper(name.front())) {
+      std::transform(name.begin(), name.end(), name.begin(), CharToLower);
+    }
+    return EscapeKeyword(ConvertCase(name, Case::kLowerCamel));
+  }
+
+  // Also used by Kotlin, lol.
+  std::string LegacyJavaMethod2(const std::string &prefix, const StructDef &sd,
+                                const std::string &suffix) const {
+    return prefix + sd.name + suffix;
+  }
+
+  std::string LegacyKotlinVariant(EnumVal &ev) const {
+    // Namer assumes the input case is snake case which is wrong...
+    return ConvertCase(EscapeKeyword(ev.name), Case::kLowerCamel);
+  }
+  // Kotlin methods escapes keywords after case conversion but before
+  // prefixing and suffixing.
+  std::string LegacyKotlinMethod(const std::string &prefix, const FieldDef &d,
+                                 const std::string &suffix) const {
+    return prefix + ConvertCase(EscapeKeyword(d.name), Case::kUpperCamel) +
+           suffix;
+  }
+  std::string LegacyKotlinMethod(const std::string &prefix, const StructDef &d,
+                                 const std::string &suffix) const {
+    return prefix + ConvertCase(EscapeKeyword(d.name), Case::kUpperCamel) +
+           suffix;
+  }
+
+  // This is a mix of snake case and keep casing, when Ts should be using
+  // lower camel case.
+  std::string LegacyTsMutateMethod(const FieldDef& d) {
+    return "mutate_" + d.name;
+  }
+
+  std::string LegacyRustUnionTypeMethod(const FieldDef &d) {
+    // assert d is a union
+    // d should convert case but not escape keywords due to historical reasons
+    return ConvertCase(d.name, config_.fields, Case::kLowerCamel) + "_type";
+  }
+
+ private:
+  std::string NamespacedString(const struct Namespace *ns,
+                               const std::string &str) const {
+    std::string ret;
+    if (ns != nullptr) { ret += Namespace(ns->components); }
+    if (!ret.empty()) ret += config_.namespace_seperator;
+    return ret + str;
+  }
+};
+
+// This is a temporary helper function for code generators to call until all
+// flag-overriding logic into flatc.cpp
+inline Namer::Config WithFlagOptions(const Namer::Config &input,
+                                     const IDLOptions &opts,
+                                     const std::string &path) {
+  Namer::Config result = input;
+  result.object_prefix = opts.object_prefix;
+  result.object_suffix = opts.object_suffix;
+  result.output_path = path;
+  result.filename_suffix = opts.filename_suffix;
+  return result;
+}
+
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_INCLUDE_CODEGEN_IDL_NAMER_H_

include/codegen/namer.h

@@ -0,0 +1,270 @@
+#ifndef FLATBUFFERS_INCLUDE_CODEGEN_NAMER_H_
+#define FLATBUFFERS_INCLUDE_CODEGEN_NAMER_H_
+
+#include "flatbuffers/util.h"
+
+namespace flatbuffers {
+
+// Options for Namer::File.
+enum class SkipFile {
+  None = 0,
+  Suffix = 1,
+  Extension = 2,
+  SuffixAndExtension = 3,
+};
+inline SkipFile operator&(SkipFile a, SkipFile b) {
+  return static_cast<SkipFile>(static_cast<int>(a) & static_cast<int>(b));
+}
+// Options for Namer::Directories
+enum class SkipDir {
+  None = 0,
+  // Skip prefixing the -o $output_path.
+  OutputPath = 1,
+  // Skip trailing path seperator.
+  TrailingPathSeperator = 2,
+  OutputPathAndTrailingPathSeparator = 3,
+};
+inline SkipDir operator&(SkipDir a, SkipDir b) {
+  return static_cast<SkipDir>(static_cast<int>(a) & static_cast<int>(b));
+}
+
+// `Namer` applies style configuration to symbols in generated code. It manages
+// casing, escapes keywords, and object API naming.
+// TODO: Refactor all code generators to use this.
+class Namer {
+ public:
+  struct Config {
+    // Symbols in code.
+
+    // Case style for flatbuffers-defined types.
+    // e.g. `class TableA {}`
+    Case types;
+    // Case style for flatbuffers-defined constants.
+    // e.g. `uint64_t ENUM_A_MAX`;
+    Case constants;
+    // Case style for flatbuffers-defined methods.
+    // e.g. `class TableA { int field_a(); }`
+    Case methods;
+    // Case style for flatbuffers-defined functions.
+    // e.g. `TableA* get_table_a_root()`;
+    Case functions;
+    // Case style for flatbuffers-defined fields.
+    // e.g. `struct Struct { int my_field; }`
+    Case fields;
+    // Case style for flatbuffers-defined variables.
+    // e.g. `int my_variable = 2`
+    Case variables;
+    // Case style for flatbuffers-defined variants.
+    // e.g. `enum class Enum { MyVariant, }`
+    Case variants;
+    // Seperator for qualified enum names.
+    // e.g. `Enum::MyVariant` uses `::`.
+    std::string enum_variant_seperator;
+
+    // Configures, when formatting code, whether symbols are checked against
+    // keywords and escaped before or after case conversion. It does not make
+    // sense to do so before, but its legacy behavior. :shrug:
+    // TODO(caspern): Deprecate.
+    enum class Escape {
+      BeforeConvertingCase,
+      AfterConvertingCase,
+    };
+    Escape escape_keywords;
+
+    // Namespaces
+
+    // e.g. `namespace my_namespace {}`
+    Case namespaces;
+    // The seperator between namespaces in a namespace path.
+    std::string namespace_seperator;
+
+    // Object API.
+    // Native versions flatbuffers types have this prefix.
+    // e.g. "" (it's usually empty string)
+    std::string object_prefix;
+    // Native versions flatbuffers types have this suffix.
+    // e.g. "T"
+    std::string object_suffix;
+
+    // Keywords.
+    // Prefix used to escape keywords. It is usually empty string.
+    std::string keyword_prefix;
+    // Suffix used to escape keywords. It is usually "_".
+    std::string keyword_suffix;
+
+    // Files.
+
+    // Case style for filenames. e.g. `foo_bar_generated.rs`
+    Case filenames;
+    // Case style for directories, e.g. `output_files/foo_bar/baz/`
+    Case directories;
+    // The directory within which we will generate files.
+    std::string output_path;
+    // Suffix for generated file names, e.g. "_generated".
+    std::string filename_suffix;
+    // Extension for generated files, e.g. ".cpp" or ".rs".
+    std::string filename_extension;
+  };
+  Namer(Config config, std::set<std::string> keywords)
+      : config_(config), keywords_(std::move(keywords)) {}
+
+  virtual ~Namer() {}
+
+  template<typename T> std::string Method(const T &s) const {
+    return Method(s.name);
+  }
+
+  virtual std::string Method(const std::string &pre,
+                             const std::string &mid,
+                             const std::string &suf) const {
+    return Format(pre + "_" +  mid + "_" + suf, config_.methods);
+  }
+  virtual std::string Method(const std::string &pre,
+                             const std::string &suf) const {
+    return Format(pre + "_" + suf, config_.methods);
+  }
+  virtual std::string Method(const std::string &s) const {
+    return Format(s, config_.methods);
+  }
+
+  virtual std::string Constant(const std::string &s) const {
+    return Format(s, config_.constants);
+  }
+
+  virtual std::string Function(const std::string &s) const {
+    return Format(s, config_.functions);
+  }
+
+  virtual std::string Variable(const std::string &s) const {
+    return Format(s, config_.variables);
+  }
+
+  template<typename T>
+  std::string Variable(const std::string &p, const T &s) const {
+    return Format(p + "_" + s.name, config_.variables);
+  }
+  virtual std::string Variable(const std::string &p,
+                               const std::string &s) const {
+    return Format(p + "_" + s, config_.variables);
+  }
+
+  virtual std::string Namespace(const std::string &s) const {
+    return Format(s, config_.namespaces);
+  }
+
+  virtual std::string Namespace(const std::vector<std::string> &ns) const {
+    std::string result;
+    for (auto it = ns.begin(); it != ns.end(); it++) {
+      if (it != ns.begin()) result += config_.namespace_seperator;
+      result += Namespace(*it);
+    }
+    return result;
+  }
+
+  virtual std::string NamespacedType(const std::vector<std::string> &ns,
+                                     const std::string &s) const {
+    return (ns.empty() ? "" : (Namespace(ns) + config_.namespace_seperator)) +
+           Type(s);
+  }
+
+  // Returns `filename` with the right casing, suffix, and extension.
+  virtual std::string File(const std::string &filename,
+                           SkipFile skips = SkipFile::None) const {
+    const bool skip_suffix = (skips & SkipFile::Suffix) != SkipFile::None;
+    const bool skip_ext = (skips & SkipFile::Extension) != SkipFile::None;
+    return ConvertCase(filename, config_.filenames, Case::kUpperCamel) +
+           (skip_suffix ? "" : config_.filename_suffix) +
+           (skip_ext ? "" : config_.filename_extension);
+  }
+  template<typename T>
+  std::string File(const T &f, SkipFile skips = SkipFile::None) const {
+    return File(f.name, skips);
+  }
+
+  // Formats `directories` prefixed with the output_path and joined with the
+  // right seperator. Output path prefixing and the trailing separator may be
+  // skiped using `skips`.
+  // Callers may want to use `EnsureDirExists` with the result.
+  // input_case is used to tell how to modify namespace. e.g. kUpperCamel will
+  // add a underscode between case changes, so MyGame turns into My_Game
+  // (depending also on the output_case).
+  virtual std::string Directories(const std::vector<std::string> &directories,
+                                  SkipDir skips = SkipDir::None,
+                                  Case input_case = Case::kUpperCamel) const {
+    const bool skip_output_path =
+        (skips & SkipDir::OutputPath) != SkipDir::None;
+    const bool skip_trailing_seperator =
+        (skips & SkipDir::TrailingPathSeperator) != SkipDir::None;
+    std::string result = skip_output_path ? "" : config_.output_path;
+    for (auto d = directories.begin(); d != directories.end(); d++) {
+      result += ConvertCase(*d, config_.directories, input_case);
+      result.push_back(kPathSeparator);
+    }
+    if (skip_trailing_seperator && !result.empty()) result.pop_back();
+    return result;
+  }
+
+  virtual std::string EscapeKeyword(const std::string &name) const {
+    if (keywords_.find(name) == keywords_.end()) {
+      return name;
+    } else {
+      return config_.keyword_prefix + name + config_.keyword_suffix;
+    }
+  }
+
+  virtual std::string Type(const std::string &s) const {
+    return Format(s, config_.types);
+  }
+  virtual std::string Type(const std::string &t, const std::string &s) const {
+    return Format(t + "_" + s, config_.types);
+  }
+
+  virtual std::string ObjectType(const std::string &s) const {
+    return config_.object_prefix + Type(s) + config_.object_suffix;
+  }
+
+  virtual std::string Field(const std::string &s) const {
+    return Format(s, config_.fields);
+  }
+
+  virtual std::string Variant(const std::string &s) const {
+    return Format(s, config_.variants);
+  }
+
+  virtual std::string Format(const std::string &s, Case casing) const {
+    if (config_.escape_keywords == Config::Escape::BeforeConvertingCase) {
+      return ConvertCase(EscapeKeyword(s), casing, Case::kLowerCamel);
+    } else {
+      return EscapeKeyword(ConvertCase(s, casing, Case::kLowerCamel));
+    }
+  }
+
+  // Denamespaces a string (e.g. The.Quick.Brown.Fox) by returning the last part
+  // after the `delimiter` (Fox) and placing the rest in `namespace_prefix`
+  // (The.Quick.Brown).
+  virtual std::string Denamespace(const std::string &s,
+                                  std::string &namespace_prefix,
+                                  const char delimiter = '.') const {
+    const size_t pos = s.find_last_of(delimiter);
+    if (pos == std::string::npos) {
+      namespace_prefix = "";
+      return s;
+    }
+    namespace_prefix = s.substr(0, pos);
+    return s.substr(pos + 1);
+  }
+
+  // Same as above, but disregards the prefix.
+  virtual std::string Denamespace(const std::string &s,
+                                  const char delimiter = '.') const {
+    std::string prefix;
+    return Denamespace(s, prefix, delimiter);
+  }
+
+  const Config config_;
+  const std::set<std::string> keywords_;
+};
+
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_INCLUDE_CODEGEN_NAMER_H_

include/codegen/python.cc

@@ -0,0 +1,63 @@
+#include "codegen/python.h"
+
+#include <set>
+#include <sstream>
+#include <string>
+#include <utility>
+
+namespace flatbuffers {
+namespace python {
+Version::Version(const std::string &version) {
+  std::stringstream ss(version);
+  char dot;
+  ss >> major >> dot >> minor >> dot >> micro;
+}
+
+bool Version::IsValid() const {
+  return (major == 0 || major == 2 || major == 3) && minor >= 0 && micro >= 0;
+}
+
+std::set<std::string> Keywords(const Version &version) {
+  switch (version.major) {
+    case 2:
+      // https://docs.python.org/2/reference/lexical_analysis.html#keywords
+      return {
+          "and",   "as",     "assert", "break",  "class", "continue", "def",
+          "del",   "elif",   "else",   "except", "exec",  "finally",  "for",
+          "from",  "global", "if",     "import", "in",    "is",       "lambda",
+          "not",   "or",     "pass",   "print",  "raise", "return",   "try",
+          "while", "with",   "yield",
+      };
+    case 0:
+    case 3:
+      // https://docs.python.org/3/reference/lexical_analysis.html#keywords
+      return {
+          "and",      "as",       "assert",  "async", "await",  "break",
+          "class",    "continue", "def",     "del",   "elif",   "else",
+          "except",   "False",    "finally", "for",   "from",   "global",
+          "if",       "import",   "in",      "is",    "lambda", "None",
+          "nonlocal", "not",      "or",      "pass",  "raise",  "return",
+          "True",     "try",      "while",   "with",  "yield",
+      };
+    default:
+      return {};
+  }
+}
+
+const python::Import &python::Imports::Import(const std::string &module) {
+  python::Import import;
+  import.module = module;
+  imports.push_back(std::move(import));
+  return imports.back();
+}
+
+const python::Import &python::Imports::Import(const std::string &module,
+                                              const std::string &name) {
+  python::Import import;
+  import.module = module;
+  import.name = name;
+  imports.push_back(std::move(import));
+  return imports.back();
+}
+}  // namespace python
+}  // namespace flatbuffers

include/codegen/python.h

@@ -0,0 +1,93 @@
+#ifndef FLATBUFFERS_INCLUDE_CODEGEN_PYTHON_H_
+#define FLATBUFFERS_INCLUDE_CODEGEN_PYTHON_H_
+
+#include <cstdint>
+#include <set>
+#include <string>
+#include <vector>
+
+#include "codegen/namer.h"
+
+namespace flatbuffers {
+namespace python {
+static const Namer::Config kConfig = {
+    /*types=*/Case::kKeep,
+    /*constants=*/Case::kScreamingSnake,
+    /*methods=*/Case::kUpperCamel,
+    /*functions=*/Case::kUpperCamel,
+    /*fields=*/Case::kLowerCamel,
+    /*variable=*/Case::kLowerCamel,
+    /*variants=*/Case::kKeep,
+    /*enum_variant_seperator=*/".",
+    /*escape_keywords=*/Namer::Config::Escape::AfterConvertingCase,
+    /*namespaces=*/Case::kKeep,  // Packages in python.
+    /*namespace_seperator=*/".",
+    /*object_prefix=*/"",
+    /*object_suffix=*/"T",
+    /*keyword_prefix=*/"",
+    /*keyword_suffix=*/"_",
+    /*filenames=*/Case::kKeep,
+    /*directories=*/Case::kKeep,
+    /*output_path=*/"",
+    /*filename_suffix=*/"",
+    /*filename_extension=*/".py",
+};
+
+static const Namer::Config kStubConfig = {
+    /*types=*/Case::kKeep,
+    /*constants=*/Case::kScreamingSnake,
+    /*methods=*/Case::kUpperCamel,
+    /*functions=*/Case::kUpperCamel,
+    /*fields=*/Case::kLowerCamel,
+    /*variables=*/Case::kLowerCamel,
+    /*variants=*/Case::kKeep,
+    /*enum_variant_seperator=*/".",
+    /*escape_keywords=*/Namer::Config::Escape::AfterConvertingCase,
+    /*namespaces=*/Case::kKeep,  // Packages in python.
+    /*namespace_seperator=*/".",
+    /*object_prefix=*/"",
+    /*object_suffix=*/"T",
+    /*keyword_prefix=*/"",
+    /*keyword_suffix=*/"_",
+    /*filenames=*/Case::kKeep,
+    /*directories=*/Case::kKeep,
+    /*output_path=*/"",
+    /*filename_suffix=*/"",
+    /*filename_extension=*/".pyi",
+};
+
+// `Version` represent a Python version.
+//
+// The zero value (i.e. `Version{}`) represents both Python2 and Python3.
+//
+// https://docs.python.org/3/faq/general.html#how-does-the-python-version-numbering-scheme-work
+struct Version {
+  explicit Version(const std::string &version);
+
+  bool IsValid() const;
+
+  int16_t major = 0;
+  int16_t minor = 0;
+  int16_t micro = 0;
+};
+
+std::set<std::string> Keywords(const Version &version);
+
+struct Import {
+  bool IsLocal() const { return module == "."; }
+
+  std::string module;
+  std::string name;
+};
+
+struct Imports {
+  const python::Import &Import(const std::string &module);
+  const python::Import &Import(const std::string &module,
+                               const std::string &name);
+
+  std::vector<python::Import> imports;
+};
+}  // namespace python
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_INCLUDE_CODEGEN_PYTHON_H_