bigfoot_ref

.github/dependabot.yml

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

.github/workflows/build.yml

@@ -42,7 +42,7 @@ jobs:
         chmod +x flatc
         ./flatc --version
     - name: upload build artifacts
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@v4
       with:
         name: Linux flatc binary ${{ matrix.cxx }}
         path: flatc
@@ -170,7 +170,7 @@ jobs:
     - name: test
       run: Release\flattests.exe
     - name: upload build artifacts
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@v4
       with:
         name: Windows flatc binary
         path: Release\flatc.exe
@@ -191,7 +191,7 @@ jobs:
 
   build-dotnet-windows:
     name: Build .NET Windows
-    runs-on: windows-2022
+    runs-on: windows-2022-64core
     strategy:
       matrix:
         configuration: [
@@ -246,7 +246,7 @@ jobs:
         chmod +x Release/flatc
         Release/flatc --version
     - name: upload build artifacts
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@v4
       with:
         name: Mac flatc binary Intel
         path: Release/flatc
@@ -289,7 +289,7 @@ jobs:
         chmod +x Release/flatc
         Release/flatc --version
     - name: upload build artifacts
-      uses: actions/upload-artifact@v7
+      uses: actions/upload-artifact@v4
       with:
         name: Mac flatc binary Universal
         path: Release/flatc
@@ -314,7 +314,7 @@ jobs:
    steps:
    - uses: actions/checkout@v6
    - name: set up Java
-     uses: actions/setup-java@v5
+     uses: actions/setup-java@v4
      with:
        distribution: temurin
        java-version: 17
@@ -373,7 +373,7 @@ 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@v7
+      uses: actions/upload-artifact@v4
       with:
         name: Linux flatbenchmark results ${{matrix.cxx}}
         path: benchmarks/results_${{matrix.cxx}}
@@ -394,7 +394,7 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v6
     - name: set up Java
-      uses: actions/setup-java@v5
+      uses: actions/setup-java@v4
       with:
         distribution: temurin
         java-version: 17
@@ -417,7 +417,7 @@ jobs:
     - name: Checkout
       uses: actions/checkout@v6
     - name: set up Java
-      uses: actions/setup-java@v5
+      uses: actions/setup-java@v4
       with:
         distribution: temurin
         java-version: 17
@@ -446,7 +446,7 @@ jobs:
 
   build-rust-windows:
     name: Build Rust Windows
-    runs-on: windows-2022
+    runs-on: windows-2022-64core
     steps:
     - uses: actions/checkout@v6
     - name: test
@@ -495,7 +495,7 @@ jobs:
     name: Test Swift Linux
     strategy:
       matrix:
-        swift: ["6.0", "6.1", "6.2"]
+        swift: ["5.10", "6.1", "6.2"]
     runs-on: ubuntu-24.04
     steps:
     - uses: actions/checkout@v6
@@ -534,7 +534,7 @@ jobs:
          run: |
            swift sdk list
            swift build --build-tests --swift-sdk swift-6.2.1-RELEASE_wasm
-           wasmtime --dir . .build/wasm32-unknown-wasip1/debug/FlatBuffers.Test.Swift.WasmPackageTests.xctest --testing-library swift-testing
+           wasmtime --dir . .build/wasm32-unknown-wasip1/debug/FlatBuffers.Test.Swift.WasmPackageTests.xctest
 
   build-ts:
     name: Build TS
@@ -545,7 +545,7 @@ jobs:
       # FIXME: make test script not rely on flatc
       run: cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release -DFLATBUFFERS_BUILD_TESTS=OFF -DFLATBUFFERS_INSTALL=OFF -DFLATBUFFERS_BUILD_FLATLIB=OFF -DFLATBUFFERS_BUILD_FLATHASH=OFF . && make -j
     - name: pnpm
-      run: npm install -g pnpm@10
+      run: npm install -g pnpm esbuild
     - name: deps
       run: pnpm i
     - name: compile

.github/workflows/docs.yml

@@ -21,11 +21,11 @@ jobs:
         run: |
           git config user.name github-actions[bot]
           git config user.email 41898282+github-actions[bot]@users.noreply.github.com
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v5
         with:
           python-version: 3.x
       - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV 
-      - uses: actions/cache@v5
+      - uses: actions/cache@v4
         with:
           key: mkdocs-material-${{ env.cache_id }}
           path: .cache

.github/workflows/main.yml

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

.github/workflows/release.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/setup-node@v6
+      - uses: actions/setup-node@v3
         with:
           node-version: '20.x'
           registry-url: 'https://registry.npmjs.org'
@@ -30,7 +30,7 @@ jobs:
         working-directory: ./python
     steps:
       - uses: actions/checkout@v6
-      - uses: actions/setup-python@v6
+      - uses: actions/setup-python@v4
         with:
           python-version: '3.10'
 

CMakeLists.txt

@@ -238,8 +238,13 @@ set(FlatBuffers_Tests_SRCS
   tests/util_test.cpp
   tests/vector_table_naked_ptr_test.h
   tests/vector_table_naked_ptr_test.cpp
+  tests/test_vector_type.h
+  tests/cpp_vector_type_test.h
+  tests/cpp_vector_type_test.cpp
   tests/native_type_test_impl.h
   tests/native_type_test_impl.cpp
+  tests/bigfoot_ref_test_impl.h
+  tests/bigfoot_ref_test_impl.cpp
   tests/alignment_test.h
   tests/alignment_test.cpp
   tests/64bit/offset64_test.h
@@ -548,18 +553,20 @@ if(FLATBUFFERS_BUILD_TESTS)
   # The flattest target needs some generated files
   SET(FLATC_OPT_COMP --cpp --gen-compare --gen-mutable --gen-object-api --reflect-names)
   SET(FLATC_OPT_SCOPED_ENUMS ${FLATC_OPT_COMP};--scoped-enums)
+  SET(FLATC_OPT_CPP_VECTOR_TYPE ${FLATC_OPT_COMP};--cpp-include;test_vector_type.h;--cpp-vector-type;::flatbuffers::tests::CustomVector)
 
   compile_schema_for_test(tests/alignment_test.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test_fbsh(tests/default_vectors_strings_test.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/arrays_test.fbs "${FLATC_OPT_SCOPED_ENUMS}")
   compile_schema_for_test(tests/native_inline_table_test.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/native_type_test.fbs "${FLATC_OPT_COMP}")
+  compile_schema_for_test(tests/bigfoot_ref_test.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/key_field/key_field_sample.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/64bit/test_64bit.fbs "${FLATC_OPT_COMP};--bfbs-gen-embed")
   compile_schema_for_test(tests/64bit/evolution/v1.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/64bit/evolution/v2.fbs "${FLATC_OPT_COMP}")
   compile_schema_for_test(tests/union_underlying_type_test.fbs "${FLATC_OPT_SCOPED_ENUMS}")
-  compile_schema_for_test(tests/cross_namespace_pack_test.fbs "${FLATC_OPT_COMP}")
+  compile_schema_for_test(tests/cpp_vector_type.fbs "${FLATC_OPT_CPP_VECTOR_TYPE}")
 
   if(FLATBUFFERS_CODE_SANITIZE)
     add_fsanitize_to_target(flattests ${FLATBUFFERS_CODE_SANITIZE})

MODULE.bazel

@@ -23,7 +23,7 @@ bazel_dep(
 )
 bazel_dep(
     name = "grpc",
-    version = "1.76.0",
+    version = "1.70.1",
     repo_name = "com_github_grpc_grpc",
 )
 bazel_dep(
@@ -49,7 +49,7 @@ bazel_dep(
 )
 bazel_dep(
     name = "rules_swift",
-    version = "3.1.2",
+    version = "2.1.1",
     max_compatibility_level = 3,
     repo_name = "build_bazel_rules_swift",
 )
@@ -63,6 +63,9 @@ npm.npm_translate_lock(
     name = "flatbuffers_npm",
     npmrc = "//:.npmrc",
     pnpm_lock = "//ts:pnpm-lock.yaml",
+    # Override the Bazel package where pnpm-lock.yaml is located and link
+    # to the specified package instead.
+    root_package = "ts",
     verify_node_modules_ignored = "//:.bazelignore",
 )
 use_repo(npm, "flatbuffers_npm")

Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:6.0
+// swift-tools-version:5.10
 /*
  * Copyright 2020 Google Inc. All rights reserved.
  *
@@ -36,17 +36,14 @@ let package = Package(
     .target(
       name: "FlatBuffers",
       dependencies: ["Common"],
-      path: "swift/Sources/FlatBuffers",
+      path: "swift/Sources/FlatBuffers"),
-      swiftSettings: .settings),
     .target(
       name: "FlexBuffers",
       dependencies: ["Common"],
-      path: "swift/Sources/FlexBuffers",
+      path: "swift/Sources/FlexBuffers"),
-      swiftSettings: .settings),
     .target(
       name: "Common",
-      path: "swift/Sources/Common",
+      path: "swift/Sources/Common"),
-      swiftSettings: .settings),
     .testTarget(
       name: "FlatbuffersTests",
       dependencies: .dependencies,
@@ -55,14 +52,7 @@ let package = Package(
       name: "FlexbuffersTests",
       dependencies: ["FlexBuffers"],
       path: "tests/swift/Tests/Flexbuffers"),
-  ],
+  ])
-  swiftLanguageModes: [.v6])
-
-extension Array where Element == SwiftSetting {
-  static var settings: [SwiftSetting] {
-    [.enableUpcomingFeature("ExistentialAny")]
-  }
-}
 
 extension Array where Element == Package.Dependency {
   static var dependencies: [Package.Dependency] {
@@ -70,12 +60,7 @@ extension Array where Element == Package.Dependency {
     []
     #else
     // Test only Dependency
-    [
+    [.package(url: "https://github.com/grpc/grpc-swift.git", from: "1.4.1")]
-      .package(url: "https://github.com/grpc/grpc-swift-2.git", from: "2.0.0"),
-      .package(
-        url: "https://github.com/grpc/grpc-swift-nio-transport.git",
-        from: "2.0.0"),
-    ]
     #endif
   }
 }
@@ -87,10 +72,7 @@ extension Array where Element == PackageDescription.Target.Dependency {
     #else
     // Test only Dependency
     [
-      .product(name: "GRPCCore", package: "grpc-swift-2"),
+      .product(name: "GRPC", package: "grpc-swift"),
-      .product(
-        name: "GRPCNIOTransportHTTP2",
-        package: "grpc-swift-nio-transport"),
       "FlatBuffers",
     ]
     #endif

benchmarks/swift/Benchmarks/FlatbuffersBenchmarks/FlatbuffersBenchmarks.swift

@@ -97,7 +97,6 @@ let benchmarks = {
     for _ in benchmark.scaledIterations {
       blackHole(ByteBuffer(assumingMemoryBound: memory, capacity: Int(oneGB)))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Clearing 1GB", configuration: singleConfiguration) { benchmark in
@@ -106,7 +105,6 @@ let benchmarks = {
     for _ in benchmark.scaledIterations {
       blackHole(fb.clear())
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Strings 10") { benchmark in
@@ -115,7 +113,6 @@ let benchmarks = {
     for _ in benchmark.scaledIterations {
       blackHole(fb.create(string: str10))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Strings 100") { benchmark in
@@ -124,7 +121,6 @@ let benchmarks = {
     for _ in benchmark.scaledIterations {
       blackHole(fb.create(string: str100))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Vector 1 Bytes") { benchmark in
@@ -133,7 +129,6 @@ let benchmarks = {
     for _ in benchmark.scaledIterations {
       blackHole(fb.createVector(bytes: bytes))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Vector 1 Ints") { benchmark in
@@ -142,7 +137,6 @@ let benchmarks = {
     for _ in benchmark.scaledIterations {
       blackHole(fb.createVector(ints))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Vector 100 Ints") { benchmark in
@@ -151,7 +145,6 @@ let benchmarks = {
     for i in benchmark.scaledIterations {
       blackHole(fb.createVector(ints))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Vector 100 Bytes") { benchmark in
@@ -160,7 +153,6 @@ let benchmarks = {
     for i in benchmark.scaledIterations {
       blackHole(fb.createVector(bytes))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Vector 100 ContiguousBytes") { benchmark in
@@ -169,7 +161,6 @@ let benchmarks = {
     for i in benchmark.scaledIterations {
       blackHole(fb.createVector(bytes: bytes))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark(
@@ -187,7 +178,6 @@ let benchmarks = {
       fb.add(offset: off, at: 8)
       blackHole(fb.endTable(at: s))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark(
@@ -200,7 +190,6 @@ let benchmarks = {
       let s = fb.startTable(with: 4)
       blackHole(fb.endTable(at: s))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Struct") { benchmark in
@@ -209,7 +198,6 @@ let benchmarks = {
     for _ in benchmark.scaledIterations {
       blackHole(fb.create(struct: array.first!))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Structs") { benchmark in
@@ -231,7 +219,6 @@ let benchmarks = {
     fb.add(offset: vector, at: 4)
     let root = Offset(offset: fb.endTable(at: start))
     blackHole(fb.finish(offset: root))
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Vector of Offsets") { benchmark in
@@ -252,15 +239,12 @@ let benchmarks = {
       fb.add(offset: off, at: 2)
       blackHole(fb.endTable(at: s))
     }
-    benchmark.stopMeasurement()
   }
 
   Benchmark("Reading Doubles") { benchmark in
     let byteBuffer = ByteBuffer(data: data)
-    benchmark.startMeasurement()
     for _ in benchmark.scaledIterations {
       blackHole(byteBuffer.read(def: Double.self, position: 0))
     }
-    benchmark.stopMeasurement()
   }
 }

benchmarks/swift/Benchmarks/FlexBuffersBenchmarks/FlexBuffersBenchmarks.swift

@@ -1,174 +0,0 @@
-/*
- * 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 FlexBuffers
-import Foundation
-
-let benchmarks = {
-  let data = {
-    var array = [8888.88, 8888.88]
-    var data = Data()
-    array.withUnsafeBytes { ptr in
-      data.append(contentsOf: ptr)
-    }
-    return data
-  }()
-  let ints: [Int32] = Array(repeating: 42, count: 100)
-  let str10 = (0...9).map { _ -> String in "x" }.joined()
-  let str100 = (0...99).map { _ -> String in "x" }.joined()
-
-  // A representative map: 50 keyed scalars, a keyed string and a keyed vector
-  // of 100 scalars. Used for the realistic decode benchmarks.
-  let mapBuffer: ByteBuffer = {
-    var fbx = FlexBuffersWriter(initialSize: 1 << 16)
-    fbx.map {
-      for i in 0..<50 { $0.add(int: i, key: "i\(i)") }
-      $0.add(string: "hello world", key: "s")
-      $0.vector(key: "v") { v in
-        for x in 0..<100 { v.add(int: x) }
-      }
-    }
-    fbx.finish()
-    return fbx.sizedByteBuffer
-  }()
-
-  let metrics: [BenchmarkMetric] = [
-    .cpuTotal,
-    .wallClock,
-    .mallocCountTotal,
-    .releaseCount,
-    .peakMemoryResident,
-  ]
-  let maxIterations = 1_000_000
-  let maxDuration: Duration = .seconds(3)
-  let megaConfiguration: Benchmark.Configuration = .init(
-    metrics: metrics,
-    warmupIterations: 1,
-    scalingFactor: .mega,
-    maxDuration: maxDuration,
-    maxIterations: maxIterations)
-
-  Benchmark.defaultConfiguration = megaConfiguration
-
-  // Decode (read path)
-
-  // Raw scalar read: isolates `read<T: BitwiseCopyable>` and the `let` blob.
-  Benchmark("Reading Doubles") { benchmark in
-    let byteBuffer = ByteBuffer(data: data)
-    benchmark.startMeasurement()
-    for _ in benchmark.scaledIterations {
-      blackHole(byteBuffer.read(def: Double.self, position: 0))
-    }
-    benchmark.stopMeasurement()
-  }
-
-  // Realistic decode: resolve root map and read a keyed scalar.
-  Benchmark("Decode Map Scalar") { benchmark in
-    benchmark.startMeasurement()
-    for _ in benchmark.scaledIterations {
-      let map = try! getRoot(buffer: mapBuffer)!.map!
-      blackHole(map["i25"]?.int)
-    }
-    benchmark.stopMeasurement()
-  }
-
-  // Realistic decode: resolve root map and read a keyed string.
-  Benchmark("Decode Map String") { benchmark in
-    benchmark.startMeasurement()
-    for _ in benchmark.scaledIterations {
-      let map = try! getRoot(buffer: mapBuffer)!.map!
-      blackHole(map["s"]?.string())
-    }
-    benchmark.stopMeasurement()
-  }
-
-  // Realistic decode: resolve a nested vector and sum its scalars.
-  Benchmark("Decode Vector") { benchmark in
-    benchmark.startMeasurement()
-    for _ in benchmark.scaledIterations {
-      let map = try! getRoot(buffer: mapBuffer)!.map!
-      let vector = map["v"]!.vector!
-      var sum: Int64 = 0
-      for i in 0..<vector.count {
-        sum &+= vector[i]?.int ?? 0
-      }
-      blackHole(sum)
-    }
-    benchmark.stopMeasurement()
-  }
-
-  // Encode (write path)
-  // Writers are reused with `reset(keepingCapacity:)` so per-iteration
-  // allocation does not dominate and mask the write-path cost (which is what
-  // the `@exclusivity(unchecked)` storage pointer affects).
-
-  Benchmark("Strings 10") { benchmark in
-    var fbx = FlexBuffersWriter(initialSize: 1 << 20)
-    benchmark.startMeasurement()
-    for _ in benchmark.scaledIterations {
-      fbx.add(string: str10)
-      fbx.finish()
-      blackHole(fbx.sizedByteBuffer)
-      fbx.reset(keepingCapacity: true)
-    }
-    benchmark.stopMeasurement()
-  }
-
-  Benchmark("Strings 100") { benchmark in
-    var fbx = FlexBuffersWriter(initialSize: 1 << 20)
-    benchmark.startMeasurement()
-    for _ in benchmark.scaledIterations {
-      fbx.add(string: str100)
-      fbx.finish()
-      blackHole(fbx.sizedByteBuffer)
-      fbx.reset(keepingCapacity: true)
-    }
-    benchmark.stopMeasurement()
-  }
-
-  Benchmark("Encoding Vector Of Ints") { benchmark in
-    var fbx = FlexBuffersWriter(initialSize: 1 << 20)
-    benchmark.startMeasurement()
-    for _ in benchmark.scaledIterations {
-      fbx.vector {
-        $0.create(vector: ints)
-      }
-      fbx.finish()
-      blackHole(fbx.sizedByteBuffer)
-      fbx.reset(keepingCapacity: true)
-    }
-    benchmark.stopMeasurement()
-  }
-
-  Benchmark("Encoding Map") { benchmark in
-    var fbx = FlexBuffersWriter(initialSize: 1 << 20)
-    benchmark.startMeasurement()
-    for _ in benchmark.scaledIterations {
-      fbx.map {
-        for i in 0..<50 { $0.add(int: i, key: "i\(i)") }
-        $0.add(string: "hello world", key: "s")
-        $0.vector(key: "v") { v in
-          for x in 0..<100 { v.add(int: x) }
-        }
-      }
-      fbx.finish()
-      blackHole(fbx.sizedByteBuffer)
-      fbx.reset(keepingCapacity: true)
-    }
-    benchmark.stopMeasurement()
-  }
-}

benchmarks/swift/Package.swift

@@ -39,14 +39,4 @@ let package = Package(
       plugins: [
         .plugin(name: "BenchmarkPlugin", package: "package-benchmark"),
       ]),
-    .executableTarget(
-      name: "FlexBuffersBenchmarks",
-      dependencies: [
-        .product(name: "FlexBuffers", package: "flatbuffers"),
-        .product(name: "Benchmark", package: "package-benchmark"),
-      ],
-      path: "Benchmarks/FlexBuffersBenchmarks",
-      plugins: [
-        .plugin(name: "BenchmarkPlugin", package: "package-benchmark"),
-      ]),
   ])

dart/lib/src/builder.dart

@@ -5,7 +5,7 @@ import 'types.dart';
 
 /// The main builder class for creation of a FlexBuffer.
 class Builder {
-  ByteData _buffer;
+  final ByteData _buffer;
   List<_StackValue> _stack = [];
   List<_StackPointer> _stackPointers = [];
   int _offset = 0;
@@ -506,7 +506,6 @@ class Builder {
     if (prevSize < size) {
       final newBuf = ByteData(size);
       newBuf.buffer.asUint8List().setAll(0, _buffer.buffer.asUint8List());
-      _buffer = newBuf;
     }
     return newOffset;
   }

dart/test/flex_builder_test.dart

@@ -318,21 +318,6 @@ void main() {
         1,
       ]);
     }
-    {
-      // Default buffer is 2048 bytes, add 2300 bytes of strings that force it
-      // to grow.
-      final s1 = 'A' * 1000;
-      final s2 = 'B' * 800;
-      final s3 = 'C' * 500;
-
-      var flx = Builder()
-        ..startVector()
-        ..addString(s1)
-        ..addString(s2)
-        ..addString(s3)
-        ..end();
-      expect(flx.finish().length, 2323);
-    }
   });
 
   test('build map', () {

docs/source/flatc.md

@@ -168,6 +168,12 @@ list of `FILES...`.
     std::string from Flatbuffers, but (char* + length). This allows efficient
 	construction of custom string types, including zero-copy construction.
 
+-   `--cpp-vector-type T` : Set object API vector type (default std::vector).
+    T must be a template taking a single element type argument and support
+    resize(), reserve(), size(), data(), operator[], emplace_back() and
+    begin()/end(), matching the subset of std::vector's interface generated
+    code relies on.
+
 -   `--no-cpp-direct-copy` : Don't generate direct copy methods for C++
     object-based API.
 

docs/source/languages/cpp.md

@@ -57,7 +57,7 @@ a `char *` array, which you pass to `GetMonster()`.
 
 ```cpp
     #include "flatbuffers/flatbuffers.h"
-    #include "monster_test_generated.h"
+    #include "monster_test_generate.h"
     #include <iostream> // C++ header file for printing
     #include <fstream> // C++ header file for file access
 
@@ -242,6 +242,42 @@ provide the following functions to aide in the serialization process:
     }
 ```
 
+-   `bigfoot_ref_wrapper("type")` (on a struct) together with `bigfoot_ref("type")`
+    (on a field of that struct type): Bigfoot-specific sugar for a
+    UUID-addressed reference to another native type. `bigfoot_ref_wrapper`
+    marks a struct as a reference-wrapper template (e.g. Bigfoot's
+    `HardReference`/`SoftReference`); `bigfoot_ref` on a field of that type
+    names the referenced native type, e.g. `bigfoot_ref: "::Bigfoot::AssetA"`
+    on a `HardReference`-typed field with `bigfoot_ref_wrapper:
+    "::Bigfoot::HardReference"` produces the field's native type
+    `::Bigfoot::HardReference<::Bigfoot::AssetA>` (auto-deriving a
+    `native_type_pack_name` of `HardReferenceAssetA`, same short-name
+    convention as `native_type_pack_name`). Unlike a hand-written
+    `native_type`, `bigfoot_ref` also emits, directly into the generated
+    header:
+    -   a forward declaration of the referenced type (so the referencing
+        schema's generated header never needs that type's real definition -
+        only the wrapper template's constructor and a `GetUUID()` accessor
+        are used, and those don't require the referenced type to be
+        complete), and
+    -   `inline` `Pack<Name>`/`UnPack<Name>` definitions for it (so no
+        hand-written implementation is required anywhere).
+
+```cpp
+    struct HardReference (bigfoot_ref_wrapper: "::Bigfoot::HardReference") {
+      uuid: UUID;
+    }
+
+    table AssetB {
+      ref_a: HardReference (bigfoot_ref: "::Bigfoot::AssetA");
+    }
+```
+
+    is enough on its own - no forward declaration of `::Bigfoot::AssetA` and
+    no `flatbuffers::Pack/UnPackHardReferenceAssetA` implementation need to
+    be written by hand. `bigfoot_ref` is only valid on fields whose type is a
+    struct (or vector of structs) that declares `bigfoot_ref_wrapper`.
+
 -   `native_type("type")` (on a table): Tables can also be represented with
 native types. For example, the following schema:
 
@@ -337,6 +373,27 @@ constructor in the following format: `custom_str_class(const char *, size_t)`.
 Please note that the character array is not guaranteed to be NULL terminated,
 you should always use the provided size to determine end of string.
 
+## Using different vector type
+
+By default the object tree's vector fields are built out of `std::vector`,
+but you can influence this either globally (using the `--cpp-vector-type`
+argument to `flatc`) or per field using the `cpp_vector_type` attribute, to
+use any other vector-like template type (e.g. `eastl::vector`).
+
+The type must be a template taking a single element type argument
+(`my_vector<T>`), and must support the following member functions:
+`resize()`, `reserve()`, `size()`, `data()`, `operator[]`, `emplace_back()`,
+and `begin()`/`end()`. This matches the subset of `std::vector`'s interface
+that generated code relies on.
+
+Note that unlike `std::vector<bool>`, the custom vector type must not use a
+bit-packed specialization for `bool` elements, since generated code accesses
+`data()` as a contiguous `bool` array.
+
+As with custom string types, the header defining the custom vector type is
+not automatically included; use `--cpp-include` to add the necessary
+`#include`.
+
 ## Reflection (& Resizing)
 
 There is experimental support for reflection in FlatBuffers, allowing you to

docs/source/languages/rust.md

@@ -97,61 +97,6 @@ convenient accessors for all fields, e.g. `hp()`, `mana()`, etc:
 
 *Note: That we never stored a `mana` value, so it will return the default.*
 
-## Fallible API and Custom Allocators
-
-Every `FlatBufferBuilder` method that may allocate has a `try_*` counterpart
-(e.g. `try_create_string`, `try_push`, `try_finish`) that returns
-`Result<T, A::Error>` instead of panicking. This is useful when allocation
-failures must be handled gracefully: for example in `no_std` environments or
-with fixed-capacity buffers.
-
-The existing panicking methods are unchanged and remain the simplest option
-when using the default allocator.
-
-#### Custom allocators
-
-Implement the `Allocator` trait and pass it to `FlatBufferBuilder::new_in()`:
-
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.rs}
-    use flatbuffers::{Allocator, FlatBufferBuilder};
-
-    struct MyAllocator { /* ... */ }
-
-    unsafe impl Allocator for MyAllocator {
-        type Error = MyError;
-        fn grow_downwards(&mut self) -> Result<(), Self::Error> { /* ... */ }
-        fn len(&self) -> usize { /* ... */ }
-    }
-
-    let alloc = MyAllocator::new(/* ... */);
-    let mut builder = FlatBufferBuilder::new_in(alloc);
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-The built-in `DefaultAllocator` uses `Vec<u8>` and sets `Error = Infallible`,
-so the `try_*` methods on a default builder can never fail.
-
-#### Example: building a buffer with error propagation
-
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.rs}
-    fn build<A: flatbuffers::Allocator>(
-        builder: &mut FlatBufferBuilder<A>,
-    ) -> Result<(), A::Error> {
-        let name = builder.try_create_string("Orc")?;
-        let inventory = builder.try_create_vector(&[0u8, 1, 2, 3, 4])?;
-
-        let table_start = builder.start_table();
-        builder.try_push_slot_always(Monster::VT_NAME, name)?;
-        builder.try_push_slot_always(Monster::VT_INVENTORY, inventory)?;
-        builder.try_push_slot(Monster::VT_HP, 80i16, 100)?;
-        let root = builder.try_end_table(table_start)?;
-
-        builder.try_finish(root, None)?;
-        Ok(())
-    }
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-See the `FlatBufferBuilder` rustdoc for the full list of `try_*` methods.
-
 ## Direct memory access
 
 As you can see from the above examples, all elements in a buffer are
@@ -260,47 +205,6 @@ And example of usage, for the time being, can be found in
 - Safe getters in [SafeBuffer](https://docs.rs/flatbuffers-reflection/latest/flatbuffers_reflection/struct.SafeBuffer.html),
  which does verification when constructed so you can use it for any data source
 
-## Buffer pre allocation in a latency-sensitive context
-
-In latency-sensitive applications, dynamic memory allocations can introduce unpredictable latency spikes. The `FlatBufferBuilder` internally uses several `Vec`s that may reallocate during serialization:
-
-- The backing buffer for the FlatBuffer data
-- `field_locs` for tracking field locations within tables
-- `written_vtable_revpos` for deduplicating vtables
-- `strings_pool` for shared string interning
-
-To avoid allocations during serialization, you can preallocate all internal vectors upfront using the `with_internal_capacity` constructor:
-
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.rs}
-    // Preallocate: 1KB buffer, 8 field locations, 16 vtables, 32 shared strings
-    let mut builder = FlatBufferBuilder::with_internal_capacity(1024, 8, 16, 32);
-
-    // All subsequent operations will not allocate (if capacities are sufficient)
-    let name = builder.create_shared_string("MyMonster");
-    // ... build your FlatBuffer ...
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-There are three variants available:
-
-- `with_internal_capacity(size, field_locs, vtables, strings)` - Creates a new builder with all capacities preallocated
-- `from_vec_with_internal_capacity(buffer, field_locs, vtables, strings)` - Reuses an existing `Vec<u8>` as the backing buffer
-- `new_in_with_internal_capacity(allocator, field_locs, vtables, strings)` - Uses a custom `Allocator` with preallocated internal vecs
-
-When combined with `reset()`, you can reuse the same builder across multiple serializations without any allocations after the initial setup:
-
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~{.rs}
-    let mut builder = FlatBufferBuilder::with_internal_capacity(1024, 8, 16, 32);
-
-    loop {
-        // Build a FlatBuffer (allocation-free if capacities are sufficient)
-        let data = build_message(&mut builder);
-        send(data);
-
-        // Reset for reuse - clears state but retains allocated capacity
-        builder.reset();
-    }
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
 ## Useful tools created by others
 
 * [flatc-rust](https://github.com/frol/flatc-rust) - FlatBuffers compiler

docs/source/schema.md

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

docs/source/support.md

@@ -26,7 +26,7 @@ Simple mutation                | Yes    | Yes   | Yes      | Yes   | No     | No
 Reflection                     | Yes    | No    | No       | No    | No     | No    | No  | Basic  | No  | No      | No      | No     | No
 Buffer verifier                | Yes    | No    | No       | No    | No     | No    | No  | Yes    | No  | No      | No      | No     | Yes
 Native Object API              | Yes    | No    | Yes      | Yes   | Yes    | Yes   | Yes | No     | No  | Yes     | No      | No     | Yes
-Optional Scalars               | Yes    | Yes   | Yes      | Yes   | No     | Yes   | Yes | Yes    | No  | No      | Yes     | Yes    | Yes
+Optional Scalars               | Yes    | Yes   | Yes      | No    | No     | Yes   | Yes | Yes    | No  | No      | Yes     | Yes    | Yes
 Flexbuffers                    | Yes    | Yes   | ?        | ?     | ?      | ?     | ?   | ?      | ?   | ?       | ?       | Yes    | Yes
 Testing: basic                 | Yes    | Yes   | Yes      | Yes   | Yes    | Yes   | Yes | Yes    | ?   | Yes     | Yes     | Yes    | Yes
 Testing: fuzz                  | Yes    | No    | No       | Yes   | Yes    | No    | No  | No     | ?   | No      | No      | Yes    | No

goldens/rust/basic_generated.rs

@@ -1,322 +1,297 @@
 // automatically generated by the FlatBuffers compiler, do not modify
 // @generated
+
 extern crate alloc;
 
 #[allow(unused_imports, dead_code)]
 pub mod flatbuffers {
-    extern crate alloc;
 
-    #[allow(unused_imports, dead_code)]
+extern crate alloc;
-    pub mod goldens {
+#[allow(unused_imports, dead_code)]
-        extern crate alloc;
+pub mod goldens {
 
-        pub enum GalaxyOffset {}
+extern crate alloc;
 
-        #[derive(Copy, Clone, PartialEq)]
+pub enum GalaxyOffset {}
-        pub struct Galaxy<'a> {
+#[derive(Copy, Clone, PartialEq)]
-            pub _tab: ::flatbuffers::Table<'a>,
-        }
 
-        impl<'a> ::flatbuffers::Follow<'a> for Galaxy<'a> {
+pub struct Galaxy<'a> {
-            type Inner = Galaxy<'a>;
+  pub _tab: ::flatbuffers::Table<'a>,
+}
 
-            #[inline]
+impl<'a> ::flatbuffers::Follow<'a> for Galaxy<'a> {
-            unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
+  type Inner = Galaxy<'a>;
-                Self { _tab: unsafe { ::flatbuffers::Table::new(buf, loc) } }
+  #[inline]
-            }
+  unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-        }
+    Self { _tab: unsafe { ::flatbuffers::Table::new(buf, loc) } }
+  }
+}
 
-        impl<'a> Galaxy<'a> {
+impl<'a> Galaxy<'a> {
-            pub const VT_NUM_STARS: ::flatbuffers::VOffsetT = 4;
+  pub const VT_NUM_STARS: ::flatbuffers::VOffsetT = 4;
 
-            #[inline]
+  #[inline]
-            pub unsafe fn init_from_table(table: ::flatbuffers::Table<'a>) -> Self {
+  pub unsafe fn init_from_table(table: ::flatbuffers::Table<'a>) -> Self {
-                Galaxy { _tab: table }
+    Galaxy { _tab: table }
-            }
+  }
-
+  #[allow(unused_mut)]
-            #[allow(unused_mut)]
+  pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr, A: ::flatbuffers::Allocator + 'bldr>(
-            pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr, A: ::flatbuffers::Allocator + 'bldr>(
+    _fbb: &'mut_bldr mut ::flatbuffers::FlatBufferBuilder<'bldr, A>,
-                _fbb: &'mut_bldr mut ::flatbuffers::FlatBufferBuilder<'bldr, A>,
+    args: &'args GalaxyArgs
-                args: &'args GalaxyArgs
+  ) -> ::flatbuffers::WIPOffset<Galaxy<'bldr>> {
-            ) -> ::flatbuffers::WIPOffset<Galaxy<'bldr>> {
+    let mut builder = GalaxyBuilder::new(_fbb);
-                let mut builder = GalaxyBuilder::new(_fbb);
+    builder.add_num_stars(args.num_stars);
-                builder.add_num_stars(args.num_stars);
+    builder.finish()
-                builder.finish()
+  }
-            }
 
 
-            #[inline]
+  #[inline]
-            pub fn num_stars(&self) -> i64 {
+  pub fn num_stars(&self) -> i64 {
-                // Safety:
+    // Safety:
-                // Created from valid Table for this object
+    // Created from valid Table for this object
-                // which contains a valid value in this slot
+    // which contains a valid value in this slot
-                unsafe { self._tab.get::<i64>(Galaxy::VT_NUM_STARS, Some(0)).unwrap()}
+    unsafe { self._tab.get::<i64>(Galaxy::VT_NUM_STARS, Some(0)).unwrap()}
-            }
+  }
-        }
+}
 
-        impl ::flatbuffers::Verifiable for Galaxy<'_> {
+impl ::flatbuffers::Verifiable for Galaxy<'_> {
-            #[inline]
+  #[inline]
-            fn run_verifier(
+  fn run_verifier(
-                v: &mut ::flatbuffers::Verifier, pos: usize
+    v: &mut ::flatbuffers::Verifier, pos: usize
-            ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
+  ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
-                v.visit_table(pos)?
+    v.visit_table(pos)?
-                    .visit_field::<i64>("num_stars", Self::VT_NUM_STARS, false)?
+     .visit_field::<i64>("num_stars", Self::VT_NUM_STARS, false)?
-                    .finish();
+     .finish();
-                Ok(())
+    Ok(())
-            }
+  }
-        }
+}
+pub struct GalaxyArgs {
+    pub num_stars: i64,
+}
+impl<'a> Default for GalaxyArgs {
+  #[inline]
+  fn default() -> Self {
+    GalaxyArgs {
+      num_stars: 0,
+    }
+  }
+}
 
-        pub struct GalaxyArgs {
+pub struct GalaxyBuilder<'a: 'b, 'b, A: ::flatbuffers::Allocator + 'a> {
-            pub num_stars: i64,
+  fbb_: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>,
-        }
+  start_: ::flatbuffers::WIPOffset<::flatbuffers::TableUnfinishedWIPOffset>,
+}
+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, A>) -> GalaxyBuilder<'a, 'b, A> {
+    let start = _fbb.start_table();
+    GalaxyBuilder {
+      fbb_: _fbb,
+      start_: start,
+    }
+  }
+  #[inline]
+  pub fn finish(self) -> ::flatbuffers::WIPOffset<Galaxy<'a>> {
+    let o = self.fbb_.end_table(self.start_);
+    ::flatbuffers::WIPOffset::new(o.value())
+  }
+}
 
-        impl<'a> Default for GalaxyArgs {
+impl ::core::fmt::Debug for Galaxy<'_> {
-            #[inline]
+  fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
-            fn default() -> Self {
+    let mut ds = f.debug_struct("Galaxy");
-                GalaxyArgs {
+      ds.field("num_stars", &self.num_stars());
-                    num_stars: 0,
+      ds.finish()
-                }
+  }
-            }
+}
-        }
+pub enum UniverseOffset {}
+#[derive(Copy, Clone, PartialEq)]
 
-        pub struct GalaxyBuilder<'a: 'b, 'b, A: ::flatbuffers::Allocator + 'a> {
+pub struct Universe<'a> {
-            fbb_: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>,
+  pub _tab: ::flatbuffers::Table<'a>,
-            start_: ::flatbuffers::WIPOffset<::flatbuffers::TableUnfinishedWIPOffset>,
+}
-        }
 
-        impl<'a: 'b, 'b, A: ::flatbuffers::Allocator + 'a> GalaxyBuilder<'a, 'b, A> {
+impl<'a> ::flatbuffers::Follow<'a> for Universe<'a> {
-            #[inline]
+  type Inner = Universe<'a>;
-            pub fn add_num_stars(&mut self, num_stars: i64) {
+  #[inline]
-                self.fbb_.push_slot::<i64>(Galaxy::VT_NUM_STARS, num_stars, 0);
+  unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-            }
+    Self { _tab: unsafe { ::flatbuffers::Table::new(buf, loc) } }
+  }
+}
 
-            #[inline]
+impl<'a> Universe<'a> {
-            pub fn new(_fbb: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>) -> GalaxyBuilder<'a, 'b, A> {
+  pub const VT_AGE: ::flatbuffers::VOffsetT = 4;
-                let start = _fbb.start_table();
+  pub const VT_GALAXIES: ::flatbuffers::VOffsetT = 6;
-                GalaxyBuilder {
-                    fbb_: _fbb,
-                    start_: start,
-                }
-            }
 
-            #[inline]
+  #[inline]
-            pub fn finish(self) -> ::flatbuffers::WIPOffset<Galaxy<'a>> {
+  pub unsafe fn init_from_table(table: ::flatbuffers::Table<'a>) -> Self {
-                let o = self.fbb_.end_table(self.start_);
+    Universe { _tab: table }
-                ::flatbuffers::WIPOffset::new(o.value())
+  }
-            }
+  #[allow(unused_mut)]
-        }
+  pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr, A: ::flatbuffers::Allocator + 'bldr>(
-
+    _fbb: &'mut_bldr mut ::flatbuffers::FlatBufferBuilder<'bldr, A>,
-        impl ::core::fmt::Debug for Galaxy<'_> {
+    args: &'args UniverseArgs<'args>
-            fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
+  ) -> ::flatbuffers::WIPOffset<Universe<'bldr>> {
-                let mut ds = f.debug_struct("Galaxy");
+    let mut builder = UniverseBuilder::new(_fbb);
-                ds.field("num_stars", &self.num_stars());
+    builder.add_age(args.age);
-                ds.finish()
+    if let Some(x) = args.galaxies { builder.add_galaxies(x); }
-            }
+    builder.finish()
-        }
+  }
-
-        pub enum UniverseOffset {}
-
-        #[derive(Copy, Clone, PartialEq)]
-        pub struct Universe<'a> {
-            pub _tab: ::flatbuffers::Table<'a>,
-        }
-
-        impl<'a> ::flatbuffers::Follow<'a> for Universe<'a> {
-            type Inner = Universe<'a>;
-
-            #[inline]
-            unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-                Self { _tab: unsafe { ::flatbuffers::Table::new(buf, loc) } }
-            }
-        }
-
-        impl<'a> Universe<'a> {
-            pub const VT_AGE: ::flatbuffers::VOffsetT = 4;
-            pub const VT_GALAXIES: ::flatbuffers::VOffsetT = 6;
-
-            #[inline]
-            pub unsafe fn init_from_table(table: ::flatbuffers::Table<'a>) -> Self {
-                Universe { _tab: table }
-            }
-
-            #[allow(unused_mut)]
-            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);
-                builder.add_age(args.age);
-                if let Some(x) = args.galaxies { builder.add_galaxies(x); }
-                builder.finish()
-            }
 
 
-            #[inline]
+  #[inline]
-            pub fn age(&self) -> f64 {
+  pub fn age(&self) -> f64 {
-                // Safety:
+    // Safety:
-                // Created from valid Table for this object
+    // Created from valid Table for this object
-                // which contains a valid value in this slot
+    // which contains a valid value in this slot
-                unsafe { self._tab.get::<f64>(Universe::VT_AGE, Some(0.0)).unwrap()}
+    unsafe { self._tab.get::<f64>(Universe::VT_AGE, Some(0.0)).unwrap()}
-            }
+  }
+  #[inline]
+  pub fn galaxies(&self) -> Option<::flatbuffers::Vector<'a, ::flatbuffers::ForwardsUOffset<Galaxy<'a>>>> {
+    // Safety:
+    // Created from valid Table for this object
+    // which contains a valid value in this slot
+    unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'a, ::flatbuffers::ForwardsUOffset<Galaxy>>>>(Universe::VT_GALAXIES, None)}
+  }
+}
 
-            #[inline]
+impl ::flatbuffers::Verifiable for Universe<'_> {
-            pub fn galaxies(&self) -> Option<::flatbuffers::Vector<'a, ::flatbuffers::ForwardsUOffset<Galaxy<'a>>>> {
+  #[inline]
-                // Safety:
+  fn run_verifier(
-                // Created from valid Table for this object
+    v: &mut ::flatbuffers::Verifier, pos: usize
-                // which contains a valid value in this slot
+  ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
-                unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'a, ::flatbuffers::ForwardsUOffset<Galaxy>>>>(Universe::VT_GALAXIES, None)}
+    v.visit_table(pos)?
-            }
+     .visit_field::<f64>("age", Self::VT_AGE, false)?
-        }
+     .visit_field::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'_, ::flatbuffers::ForwardsUOffset<Galaxy>>>>("galaxies", Self::VT_GALAXIES, false)?
+     .finish();
+    Ok(())
+  }
+}
+pub struct UniverseArgs<'a> {
+    pub age: f64,
+    pub galaxies: Option<::flatbuffers::WIPOffset<::flatbuffers::Vector<'a, ::flatbuffers::ForwardsUOffset<Galaxy<'a>>>>>,
+}
+impl<'a> Default for UniverseArgs<'a> {
+  #[inline]
+  fn default() -> Self {
+    UniverseArgs {
+      age: 0.0,
+      galaxies: None,
+    }
+  }
+}
 
-        impl ::flatbuffers::Verifiable for Universe<'_> {
+pub struct UniverseBuilder<'a: 'b, 'b, A: ::flatbuffers::Allocator + 'a> {
-            #[inline]
+  fbb_: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>,
-            fn run_verifier(
+  start_: ::flatbuffers::WIPOffset<::flatbuffers::TableUnfinishedWIPOffset>,
-                v: &mut ::flatbuffers::Verifier, pos: usize
+}
-            ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
+impl<'a: 'b, 'b, A: ::flatbuffers::Allocator + 'a> UniverseBuilder<'a, 'b, A> {
-                v.visit_table(pos)?
+  #[inline]
-                    .visit_field::<f64>("age", Self::VT_AGE, false)?
+  pub fn add_age(&mut self, age: f64) {
-                    .visit_field::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'_, ::flatbuffers::ForwardsUOffset<Galaxy>>>>("galaxies", Self::VT_GALAXIES, false)?
+    self.fbb_.push_slot::<f64>(Universe::VT_AGE, age, 0.0);
-                    .finish();
+  }
-                Ok(())
+  #[inline]
-            }
+  pub fn add_galaxies(&mut self, galaxies: ::flatbuffers::WIPOffset<::flatbuffers::Vector<'b , ::flatbuffers::ForwardsUOffset<Galaxy<'b >>>>) {
-        }
+    self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Universe::VT_GALAXIES, galaxies);
+  }
+  #[inline]
+  pub fn new(_fbb: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>) -> UniverseBuilder<'a, 'b, A> {
+    let start = _fbb.start_table();
+    UniverseBuilder {
+      fbb_: _fbb,
+      start_: start,
+    }
+  }
+  #[inline]
+  pub fn finish(self) -> ::flatbuffers::WIPOffset<Universe<'a>> {
+    let o = self.fbb_.end_table(self.start_);
+    ::flatbuffers::WIPOffset::new(o.value())
+  }
+}
 
-        pub struct UniverseArgs<'a> {
+impl ::core::fmt::Debug for Universe<'_> {
-            pub age: f64,
+  fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
-            pub galaxies: Option<::flatbuffers::WIPOffset<::flatbuffers::Vector<'a, ::flatbuffers::ForwardsUOffset<Galaxy<'a>>>>>,
+    let mut ds = f.debug_struct("Universe");
-        }
+      ds.field("age", &self.age());
+      ds.field("galaxies", &self.galaxies());
+      ds.finish()
+  }
+}
+#[inline]
+/// Verifies that a buffer of bytes contains a `Universe`
+/// and returns it.
+/// Note that verification is still experimental and may not
+/// catch every error, or be maximally performant. For the
+/// previous, unchecked, behavior use
+/// `root_as_universe_unchecked`.
+pub fn root_as_universe(buf: &[u8]) -> Result<Universe<'_>, ::flatbuffers::InvalidFlatbuffer> {
+  ::flatbuffers::root::<Universe>(buf)
+}
+#[inline]
+/// Verifies that a buffer of bytes contains a size prefixed
+/// `Universe` and returns it.
+/// Note that verification is still experimental and may not
+/// catch every error, or be maximally performant. For the
+/// previous, unchecked, behavior use
+/// `size_prefixed_root_as_universe_unchecked`.
+pub fn size_prefixed_root_as_universe(buf: &[u8]) -> Result<Universe<'_>, ::flatbuffers::InvalidFlatbuffer> {
+  ::flatbuffers::size_prefixed_root::<Universe>(buf)
+}
+#[inline]
+/// Verifies, with the given options, that a buffer of bytes
+/// contains a `Universe` and returns it.
+/// Note that verification is still experimental and may not
+/// catch every error, or be maximally performant. For the
+/// previous, unchecked, behavior use
+/// `root_as_universe_unchecked`.
+pub fn root_as_universe_with_opts<'b, 'o>(
+  opts: &'o ::flatbuffers::VerifierOptions,
+  buf: &'b [u8],
+) -> Result<Universe<'b>, ::flatbuffers::InvalidFlatbuffer> {
+  ::flatbuffers::root_with_opts::<Universe<'b>>(opts, buf)
+}
+#[inline]
+/// Verifies, with the given verifier options, that a buffer of
+/// bytes contains a size prefixed `Universe` and returns
+/// it. Note that verification is still experimental and may not
+/// catch every error, or be maximally performant. For the
+/// previous, unchecked, behavior use
+/// `root_as_universe_unchecked`.
+pub fn size_prefixed_root_as_universe_with_opts<'b, 'o>(
+  opts: &'o ::flatbuffers::VerifierOptions,
+  buf: &'b [u8],
+) -> Result<Universe<'b>, ::flatbuffers::InvalidFlatbuffer> {
+  ::flatbuffers::size_prefixed_root_with_opts::<Universe<'b>>(opts, buf)
+}
+#[inline]
+/// Assumes, without verification, that a buffer of bytes contains a Universe and returns it.
+/// # Safety
+/// Callers must trust the given bytes do indeed contain a valid `Universe`.
+pub unsafe fn root_as_universe_unchecked(buf: &[u8]) -> Universe<'_> {
+  unsafe { ::flatbuffers::root_unchecked::<Universe>(buf) }
+}
+#[inline]
+/// Assumes, without verification, that a buffer of bytes contains a size prefixed Universe and returns it.
+/// # Safety
+/// Callers must trust the given bytes do indeed contain a valid size prefixed `Universe`.
+pub unsafe fn size_prefixed_root_as_universe_unchecked(buf: &[u8]) -> Universe<'_> {
+  unsafe { ::flatbuffers::size_prefixed_root_unchecked::<Universe>(buf) }
+}
+#[inline]
+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);
+}
 
-        impl<'a> Default for UniverseArgs<'a> {
+#[inline]
-            #[inline]
+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>>) {
-            fn default() -> Self {
+  fbb.finish_size_prefixed(root, None);
-                UniverseArgs {
+}
-                    age: 0.0,
+}  // pub mod goldens
-                    galaxies: None,
+}  // pub mod flatbuffers
-                }
-            }
-        }
 
-        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, 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);
-            }
-
-            #[inline]
-            pub fn add_galaxies(&mut self, galaxies: ::flatbuffers::WIPOffset<::flatbuffers::Vector<'b , ::flatbuffers::ForwardsUOffset<Galaxy<'b >>>>) {
-                self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Universe::VT_GALAXIES, galaxies);
-            }
-
-            #[inline]
-            pub fn new(_fbb: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>) -> UniverseBuilder<'a, 'b, A> {
-                let start = _fbb.start_table();
-                UniverseBuilder {
-                    fbb_: _fbb,
-                    start_: start,
-                }
-            }
-
-            #[inline]
-            pub fn finish(self) -> ::flatbuffers::WIPOffset<Universe<'a>> {
-                let o = self.fbb_.end_table(self.start_);
-                ::flatbuffers::WIPOffset::new(o.value())
-            }
-        }
-
-        impl ::core::fmt::Debug for Universe<'_> {
-            fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
-                let mut ds = f.debug_struct("Universe");
-                ds.field("age", &self.age());
-                ds.field("galaxies", &self.galaxies());
-                ds.finish()
-            }
-        }
-
-        /// Verifies that a buffer of bytes contains a `Universe`
-        /// and returns it.
-        /// Note that verification is still experimental and may not
-        /// catch every error, or be maximally performant. For the
-        /// previous, unchecked, behavior use
-        /// `root_as_universe_unchecked`.
-        #[inline]
-        pub fn root_as_universe(buf: &[u8]) -> Result<Universe<'_>, ::flatbuffers::InvalidFlatbuffer> {
-            ::flatbuffers::root::<Universe>(buf)
-        }
-
-        /// Verifies that a buffer of bytes contains a size prefixed
-        /// `Universe` and returns it.
-        /// Note that verification is still experimental and may not
-        /// catch every error, or be maximally performant. For the
-        /// previous, unchecked, behavior use
-        /// `size_prefixed_root_as_universe_unchecked`.
-        #[inline]
-        pub fn size_prefixed_root_as_universe(buf: &[u8]) -> Result<Universe<'_>, ::flatbuffers::InvalidFlatbuffer> {
-            ::flatbuffers::size_prefixed_root::<Universe>(buf)
-        }
-
-        /// Verifies, with the given options, that a buffer of bytes
-        /// contains a `Universe` and returns it.
-        /// Note that verification is still experimental and may not
-        /// catch every error, or be maximally performant. For the
-        /// previous, unchecked, behavior use
-        /// `root_as_universe_unchecked`.
-        #[inline]
-        pub fn root_as_universe_with_opts<'b, 'o>(
-            opts: &'o ::flatbuffers::VerifierOptions,
-            buf: &'b [u8],
-        ) -> Result<Universe<'b>, ::flatbuffers::InvalidFlatbuffer> {
-            ::flatbuffers::root_with_opts::<Universe<'b>>(opts, buf)
-        }
-
-        /// Verifies, with the given verifier options, that a buffer of
-        /// bytes contains a size prefixed `Universe` and returns
-        /// it. Note that verification is still experimental and may not
-        /// catch every error, or be maximally performant. For the
-        /// previous, unchecked, behavior use
-        /// `root_as_universe_unchecked`.
-        #[inline]
-        pub fn size_prefixed_root_as_universe_with_opts<'b, 'o>(
-            opts: &'o ::flatbuffers::VerifierOptions,
-            buf: &'b [u8],
-        ) -> Result<Universe<'b>, ::flatbuffers::InvalidFlatbuffer> {
-            ::flatbuffers::size_prefixed_root_with_opts::<Universe<'b>>(opts, buf)
-        }
-
-        /// Assumes, without verification, that a buffer of bytes contains a Universe and returns it.
-        /// # Safety
-        /// Callers must trust the given bytes do indeed contain a valid `Universe`.
-        #[inline]
-        pub unsafe fn root_as_universe_unchecked(buf: &[u8]) -> Universe<'_> {
-            unsafe { ::flatbuffers::root_unchecked::<Universe>(buf) }
-        }
-
-        /// Assumes, without verification, that a buffer of bytes contains a size prefixed Universe and returns it.
-        /// # Safety
-        /// Callers must trust the given bytes do indeed contain a valid size prefixed `Universe`.
-        #[inline]
-        pub unsafe fn size_prefixed_root_as_universe_unchecked(buf: &[u8]) -> Universe<'_> {
-            unsafe { ::flatbuffers::size_prefixed_root_unchecked::<Universe>(buf) }
-        }
-
-        #[inline]
-        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, 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/ts/flatbuffers/goldens/universe.ts

@@ -4,7 +4,7 @@
 
 import * as flatbuffers from 'flatbuffers';
 
-import { Galaxy } from './galaxy.js';
+import { Galaxy } from '../../flatbuffers/goldens/galaxy.js';
 
 
 export class Universe {

grpc/examples/greeter_v2.fbs

@@ -1,16 +0,0 @@
-namespace models;
-
-table HelloResponse {
-  message:string;
-}
-
-table HelloRequest {
-  name:string;
-}
-
-rpc_service Greeter {
-  Get(HelloRequest):HelloResponse;
-  Collect(HelloRequest):HelloResponse (streaming: "client");
-  Expand(HelloRequest):HelloResponse (streaming: "server");
-  Update(HelloRequest):HelloResponse (streaming: "bidi");
-}

grpc/examples/swift/Greeter/Package.swift

@@ -1,4 +1,4 @@
-// swift-tools-version:6.2
+// swift-tools-version:5.10
 /*
  * Copyright 2020 Google Inc. All rights reserved.
  *
@@ -20,43 +20,39 @@ import PackageDescription
 let package = Package(
   name: "Greeter",
   platforms: [
-    .iOS(.v18),
+    .iOS(.v12),
-    .macOS(.v15),
+    .macOS(.v10_14),
   ],
   dependencies: [
-    .package(path: "../../../.."),
+    .package(path: "../../../../swift"),
-    .package(url: "https://github.com/grpc/grpc-swift-2.git", from: "2.0.0"),
+    .package(url: "https://github.com/grpc/grpc-swift.git", from: "1.0.0"),
-    .package(
-      url: "https://github.com/grpc/grpc-swift-nio-transport.git",
-      from: "2.0.0"),
-    .package(
-      url: "https://github.com/apple/swift-argument-parser.git",
-      from: "1.5.0"),
   ],
   targets: [
     // Targets are the basic building blocks of a package. A target can define a module or a test suite.
     // Targets can depend on other targets in this package, and on products in packages which this package depends on.
     .target(
-      name: "Models",
+      name: "Model",
       dependencies: [
-        .product(name: "FlatBuffers", package: "flatbuffers"),
+        "GRPC",
-        .product(name: "GRPCCore", package: "grpc-swift-2"),
+        "FlatBuffers",
-        .product(
+      ],
-          name: "GRPCNIOTransportHTTP2",
+      path: "Sources/Model"),
-          package: "grpc-swift-nio-transport"),
-      ]),
 
     // Client for the Greeter example
-    .executableTarget(
+    .target(
-      name: "Commands",
+      name: "Client",
       dependencies: [
-        .product(name: "GRPCCore", package: "grpc-swift-2"),
+        "GRPC",
-        .product(
+        "Model",
-          name: "GRPCNIOTransportHTTP2",
+      ],
-          package: "grpc-swift-nio-transport"),
+      path: "Sources/client"),
-        .product(
+
-          name: "ArgumentParser",
+    // Server for the Greeter example
-          package: "swift-argument-parser"),
+    .target(
-        "Models",
+      name: "Server",
-      ]),
+      dependencies: [
+        "GRPC",
+        "Model",
+      ],
+      path: "Sources/server"),
   ])

grpc/examples/swift/Greeter/Sources/Commands/Commands.swift

@@ -1,28 +0,0 @@
-/*
- * 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 ArgumentParser
-
-let port = 3000
-
-@main
-struct GreeterCommand: AsyncParsableCommand {
-  static let configuration = CommandConfiguration(
-    commandName: "greeter",
-    abstract: "A multi-tool to run an echo server and execute RPCs against it.",
-    subcommands: [ServerCommand.self, ClientCommand.self])
-}
-

grpc/examples/swift/Greeter/Sources/Commands/Services/GreeterService.swift

@@ -1,121 +0,0 @@
-/*
- * 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 FlatBuffers
-import GRPCCore
-import Models
-
-struct GreeterService: models_Greeter.SimpleServiceProtocol {
-  func Get(
-    request: GRPCMessage<models_HelloResponse>,
-    context: GRPCCore
-      .ServerContext) async throws -> GRPCMessage<models_HelloResponse>
-  {
-    let model = try request.decode()
-    print("## GreeterService.Get: \(model.message)")
-
-    var builder = FlatBufferBuilder(initialSize: 128)
-    let off = builder.create(string: "Hello \(model.message ?? "Unknown")")
-    let root = models_HelloResponse.createHelloResponse(
-      &builder,
-      messageOffset: off)
-    builder.finish(offset: root)
-    return try GRPCMessage<models_HelloResponse>(builder: &builder)
-  }
-
-  func Collect(
-    request: GRPCCore.RPCAsyncSequence<
-      GRPCMessage<models_HelloResponse>,
-      any Swift.Error
-    >,
-    context: GRPCCore
-      .ServerContext) async throws -> GRPCMessage<models_HelloResponse>
-  {
-    let messages: [String] = try await request
-      .reduce(into: []) { array, message in
-        let model = try message.decode()
-        return array.append(model.message ?? "Unknown")
-      }
-
-    let joined = messages.joined(separator: ", ")
-    print("## GreeterService.Collect: \(joined)")
-
-    var builder = FlatBufferBuilder(initialSize: 128)
-    let off = builder.create(string: "Hello \(joined)")
-    let root = models_HelloResponse.createHelloResponse(
-      &builder,
-      messageOffset: off)
-    builder.finish(offset: root)
-    return try GRPCMessage<models_HelloResponse>(builder: &builder)
-  }
-
-  func Expand(
-    request: GRPCMessage<models_HelloResponse>,
-    response: GRPCCore.RPCWriter<GRPCMessage<models_HelloResponse>>,
-    context: GRPCCore.ServerContext) async throws
-  {
-
-    let model = try request.decode()
-    print("## GreeterService.Expand: \(model.message)")
-
-    let message = model.message ?? "Unknown"
-    let stream = AsyncThrowingStream<
-      GRPCMessage<models_HelloResponse>,
-      Error
-    > { continuation in
-      var builder = FlatBufferBuilder(initialSize: 128)
-      for char in message {
-        let off = builder.create(string: "\(char)")
-        let root = models_HelloResponse.createHelloResponse(
-          &builder,
-          messageOffset: off)
-        builder.finish(offset: root)
-
-        do {
-          continuation
-            .yield(try GRPCMessage<models_HelloResponse>(builder: &builder))
-        } catch {
-          continuation.finish(throwing: error)
-        }
-      }
-
-      continuation.finish()
-    }
-    try await response.write(contentsOf: stream)
-  }
-
-  func Update(
-    request: GRPCCore.RPCAsyncSequence<
-      GRPCMessage<models_HelloResponse>,
-      any Swift.Error
-    >,
-    response: GRPCCore.RPCWriter<GRPCMessage<models_HelloResponse>>,
-    context: GRPCCore.ServerContext) async throws
-  {
-    for try await message in request {
-      let model = try message.decode()
-      print("## GreeterService.Update: \(model.message)")
-      var builder = FlatBufferBuilder(initialSize: 128)
-      let off = builder.create(string: "Hello \(model.message ?? "Unknown")")
-      let root = models_HelloResponse.createHelloResponse(
-        &builder,
-        messageOffset: off)
-      builder.finish(offset: root)
-      try await response
-        .write(try GRPCMessage<models_HelloResponse>(builder: &builder))
-    }
-  }
-}

grpc/examples/swift/Greeter/Sources/Commands/Subcommands/ClientCommand.swift

@@ -1,140 +0,0 @@
-/*
- * 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 ArgumentParser
-import FlatBuffers
-import GRPCCore
-import GRPCNIOTransportHTTP2
-import Models
-
-enum ClientRequest: String, ExpressibleByArgument {
-  case get, expand, collect, update
-}
-
-struct ClientCommand: AsyncParsableCommand {
-  static let configuration = CommandConfiguration(
-    commandName: "client")
-
-  @Option(help: "Name to send to the server")
-  var name: String
-
-  @Option(help: "request type")
-  var request: ClientRequest
-
-  func run() async throws {
-    try await withGRPCClient(
-      transport: .http2NIOPosix(
-        target: .dns(host: "localhost", port: port),
-        transportSecurity: .plaintext))
-    {
-      let client = models_Greeter.Client(wrapping: $0)
-
-      switch request {
-      case .get: try await get(client: client)
-      case .expand: try await expand(client: client)
-      case .collect: try await collect(client: client)
-      case .update: try await update(client: client)
-      }
-    }
-  }
-
-  func get(
-    client: models_Greeter
-      .Client<HTTP2ClientTransport.Posix>) async throws
-  {
-    for _ in 0..<3 {
-      var builder = FlatBufferBuilder(initialSize: 64)
-      let off = builder.create(string: name)
-      let root = models_HelloRequest.createHelloRequest(
-        &builder,
-        nameOffset: off)
-      builder.finish(offset: root)
-
-      let response = try await client
-        .Get(GRPCMessage(builder: &builder))
-      let message = try? response.decode().message
-      print("get message: \(message ?? "nil")")
-    }
-  }
-
-  func expand(
-    client: models_Greeter
-      .Client<HTTP2ClientTransport.Posix>) async throws
-  {
-    for _ in 0..<3 {
-      var builder = FlatBufferBuilder(initialSize: 64)
-      let off = builder.create(string: name)
-      let root = models_HelloRequest.createHelloRequest(
-        &builder,
-        nameOffset: off)
-      builder.finish(offset: root)
-      try await client.Expand(GRPCMessage(builder: &builder)) { response in
-        for try await message in response.messages {
-          let message = try? message.decode().message
-          print("expand message: \(message ?? "nil")")
-        }
-      }
-    }
-  }
-
-  func collect(
-    client: models_Greeter
-      .Client<HTTP2ClientTransport.Posix>) async throws
-  {
-    for _ in 0..<3 {
-      let response = try await client.Collect { writer in
-        for part in name {
-          print("collect sending: \(part)")
-          var builder = FlatBufferBuilder(initialSize: 64)
-          let off = builder.create(string: String(part))
-          let root = models_HelloRequest.createHelloRequest(
-            &builder,
-            nameOffset: off)
-          builder.finish(offset: root)
-          try await writer.write(GRPCMessage(builder: &builder))
-        }
-      }
-
-      let message = try response.decode().message
-      print("collect message: \(message ?? "nil")")
-    }
-  }
-
-  func update(
-    client: models_Greeter
-      .Client<HTTP2ClientTransport.Posix>) async throws
-  {
-    for _ in 0..<3 {
-      try await client.Update { writer in
-        for part in name {
-          print("update sending: \(part)")
-          var builder = FlatBufferBuilder(initialSize: 64)
-          let off = builder.create(string: String(part))
-          let root = models_HelloRequest.createHelloRequest(
-            &builder,
-            nameOffset: off)
-          builder.finish(offset: root)
-          try await writer.write(GRPCMessage(builder: &builder))
-        }
-      } onResponse: { response in
-        for try await message in response.messages {
-          let message = try message.decode().message
-          print("collect message: \(message ?? "nil")")
-        }
-      }
-    }
-  }
-}

grpc/examples/swift/Greeter/Sources/Commands/Subcommands/ServerCommand.swift

@@ -1,39 +0,0 @@
-/*
- * 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 ArgumentParser
-import GRPCCore
-import GRPCNIOTransportHTTP2
-
-struct ServerCommand: AsyncParsableCommand {
-  static let configuration = CommandConfiguration(
-    commandName: "serve")
-
-  func run() async throws {
-    let server = GRPCServer(
-      transport: .http2NIOPosix(
-        address: .ipv4(host: "127.0.0.1", port: port),
-        transportSecurity: .plaintext),
-      services: [GreeterService()])
-
-    try await withThrowingDiscardingTaskGroup { group in
-      group.addTask { try await server.serve() }
-      if let address = try await server.listeningAddress {
-        print("Echo listening on \(address)")
-      }
-    }
-  }
-}

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

@@ -0,0 +1,147 @@
+// Generated GRPC code for FlatBuffers swift!
+/// The following code is generated by the Flatbuffers library which might not be in sync with grpc-swift
+/// in case of an issue please open github issue, though it would be maintained
+
+// swiftlint:disable all
+// swiftformat:disable all
+
+#if !os(Windows)
+import Foundation
+import GRPC
+import NIO
+import NIOHTTP1
+import FlatBuffers
+
+public protocol GRPCFlatBufPayload: GRPCPayload, FlatBufferGRPCMessage {}
+public extension GRPCFlatBufPayload {
+  init(serializedByteBuffer: inout NIO.ByteBuffer) throws {
+    self.init(byteBuffer: FlatBuffers.ByteBuffer(contiguousBytes: serializedByteBuffer.readableBytesView, count: serializedByteBuffer.readableBytes))
+  }
+  func serialize(into buffer: inout NIO.ByteBuffer) throws {
+    withUnsafeReadableBytes { buffer.writeBytes($0) }
+  }
+}
+extension Message: GRPCFlatBufPayload {}
+
+/// Usage: instantiate models_GreeterServiceClient, then call methods of this protocol to make API calls.
+public protocol models_GreeterClientProtocol: GRPCClient {
+
+  var serviceName: String { get }
+
+  var interceptors: models_GreeterClientInterceptorFactoryProtocol? { get }
+
+  func SayHello(
+    _ request: Message<models_HelloRequest>
+    , callOptions: CallOptions?
+  ) -> UnaryCall<Message<models_HelloRequest>, Message<models_HelloReply>>
+
+  func SayManyHellos(
+    _ request: Message<models_HelloRequest>
+    , callOptions: CallOptions?,
+    handler: @escaping (Message<models_HelloReply>) -> Void
+  ) -> ServerStreamingCall<Message<models_HelloRequest>, Message<models_HelloReply>>
+
+}
+
+extension models_GreeterClientProtocol {
+
+  public var serviceName: String { "models.Greeter" }
+
+  public func SayHello(
+    _ request: Message<models_HelloRequest>
+    , callOptions: CallOptions? = nil
+  ) -> UnaryCall<Message<models_HelloRequest>, Message<models_HelloReply>> {
+    return self.makeUnaryCall(
+      path: "/models.Greeter/SayHello",
+      request: request,
+      callOptions: callOptions ?? self.defaultCallOptions,
+      interceptors: self.interceptors?.makeSayHelloInterceptors() ?? []
+    )
+  }
+
+  public func SayManyHellos(
+    _ request: Message<models_HelloRequest>
+    , callOptions: CallOptions? = nil,
+    handler: @escaping (Message<models_HelloReply>) -> Void
+  ) -> ServerStreamingCall<Message<models_HelloRequest>, Message<models_HelloReply>> {
+    return self.makeServerStreamingCall(
+      path: "/models.Greeter/SayManyHellos",
+      request: request,
+      callOptions: callOptions ?? self.defaultCallOptions,
+      interceptors: self.interceptors?.makeSayManyHellosInterceptors() ?? [],
+      handler: handler
+    )
+  }
+}
+
+public protocol models_GreeterClientInterceptorFactoryProtocol {
+  /// - Returns: Interceptors to use when invoking 'SayHello'.
+  func makeSayHelloInterceptors() -> [ClientInterceptor<Message<models_HelloRequest>, Message<models_HelloReply>>]
+
+  /// - Returns: Interceptors to use when invoking 'SayManyHellos'.
+  func makeSayManyHellosInterceptors() -> [ClientInterceptor<Message<models_HelloRequest>, Message<models_HelloReply>>]
+
+}
+
+public final class models_GreeterServiceClient: models_GreeterClientProtocol {
+  public let channel: GRPCChannel
+  public var defaultCallOptions: CallOptions
+  public var interceptors: models_GreeterClientInterceptorFactoryProtocol?
+
+  public init(
+    channel: GRPCChannel,
+    defaultCallOptions: CallOptions = CallOptions(),
+    interceptors: models_GreeterClientInterceptorFactoryProtocol? = nil
+  ) {
+    self.channel = channel
+    self.defaultCallOptions = defaultCallOptions
+    self.interceptors = interceptors
+  }
+}
+
+public protocol models_GreeterProvider: CallHandlerProvider {
+  var interceptors: models_GreeterServerInterceptorFactoryProtocol? { get }
+  func SayHello(request: Message<models_HelloRequest>, context: StatusOnlyCallContext) -> EventLoopFuture<Message<models_HelloReply>>
+  func SayManyHellos(request: Message<models_HelloRequest>, context: StreamingResponseCallContext<Message<models_HelloReply>>) -> EventLoopFuture<GRPCStatus>
+}
+
+public extension models_GreeterProvider {
+
+  var serviceName: Substring { return "models.Greeter" }
+
+  func handle(method name: Substring, context: CallHandlerContext) -> GRPCServerHandlerProtocol? {
+    switch name {
+    case "SayHello":
+    return UnaryServerHandler(
+      context: context,
+      requestDeserializer: GRPCPayloadDeserializer<Message<models_HelloRequest>>(),
+      responseSerializer: GRPCPayloadSerializer<Message<models_HelloReply>>(),
+      interceptors: self.interceptors?.makeSayHelloInterceptors() ?? [],
+      userFunction: self.SayHello(request:context:))
+
+    case "SayManyHellos":
+    return ServerStreamingServerHandler(
+      context: context,
+      requestDeserializer: GRPCPayloadDeserializer<Message<models_HelloRequest>>(),
+      responseSerializer: GRPCPayloadSerializer<Message<models_HelloReply>>(),
+      interceptors: self.interceptors?.makeSayManyHellosInterceptors() ?? [],
+      userFunction: self.SayManyHellos(request:context:))
+
+    default: return nil;
+    }
+  }
+
+}
+
+public protocol models_GreeterServerInterceptorFactoryProtocol {
+  /// - Returns: Interceptors to use when handling 'SayHello'.
+  ///   Defaults to calling `self.makeInterceptors()`.
+  func makeSayHelloInterceptors() -> [ServerInterceptor<Message<models_HelloRequest>, Message<models_HelloReply>>]
+
+  /// - Returns: Interceptors to use when handling 'SayManyHellos'.
+  ///   Defaults to calling `self.makeInterceptors()`.
+  func makeSayManyHellosInterceptors() -> [ServerInterceptor<Message<models_HelloRequest>, Message<models_HelloReply>>]
+
+}
+#endif
+

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

@@ -8,7 +8,7 @@ import Common
 
 import FlatBuffers
 
-public struct models_HelloResponse: FlatBufferVerifiableTable, FlatbuffersVectorInitializable {
+public struct models_HelloReply: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable {
 
   static func validateVersion() { FlatBuffersVersion_25_12_19() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -17,43 +17,45 @@ public struct models_HelloResponse: FlatBufferVerifiableTable, FlatbuffersVector
   private init(_ t: Table) { _accessor = t }
   public init(_ bb: ByteBuffer, o: Int32) { _accessor = Table(bb: bb, position: o) }
 
-  private struct VT {
+  private enum VTOFFSET: VOffset {
-    static let message: VOffset = 4
+    case message = 4
+    var v: Int32 { Int32(self.rawValue) }
+    var p: VOffset { self.rawValue }
   }
 
-  public var message: String? { let o = _accessor.offset(VT.message); return o == 0 ? nil : _accessor.string(at: o) }
+  public var message: String? { let o = _accessor.offset(VTOFFSET.message.v); return o == 0 ? nil : _accessor.string(at: o) }
-  public var messageSegmentArray: [UInt8]? { return _accessor.getVector(at: VT.message) }
+  public var messageSegmentArray: [UInt8]? { return _accessor.getVector(at: VTOFFSET.message.v) }
-  public static func startHelloResponse(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 1) }
+  public static func startHelloReply(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 1) }
-  public static func add(message: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: message, at: VT.message) }
+  public static func add(message: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: message, at: VTOFFSET.message.p) }
-  public static func endHelloResponse(_ fbb: inout FlatBufferBuilder, start: UOffset) -> Offset { let end = Offset(offset: fbb.endTable(at: start)); return end }
+  public static func endHelloReply(_ fbb: inout FlatBufferBuilder, start: UOffset) -> Offset { let end = Offset(offset: fbb.endTable(at: start)); return end }
-  public static func createHelloResponse(
+  public static func createHelloReply(
     _ fbb: inout FlatBufferBuilder,
     messageOffset message: Offset = Offset()
   ) -> Offset {
-    let __start = models_HelloResponse.startHelloResponse(&fbb)
+    let __start = models_HelloReply.startHelloReply(&fbb)
-    models_HelloResponse.add(message: message, &fbb)
+    models_HelloReply.add(message: message, &fbb)
-    return models_HelloResponse.endHelloResponse(&fbb, start: __start)
+    return models_HelloReply.endHelloReply(&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: VT.message, fieldName: "message", required: false, type: ForwardOffset<String>.self)
+    try _v.visit(field: VTOFFSET.message.p, fieldName: "message", required: false, type: ForwardOffset<String>.self)
     _v.finish()
   }
 }
 
-extension models_HelloResponse: Encodable {
+extension models_HelloReply: Encodable {
+
   enum CodingKeys: String, CodingKey {
     case message = "message"
   }
-
   public func encode(to encoder: Encoder) throws {
     var container = encoder.container(keyedBy: CodingKeys.self)
     try container.encodeIfPresent(message, forKey: .message)
   }
 }
 
-public struct models_HelloRequest: FlatBufferVerifiableTable, FlatbuffersVectorInitializable {
+public struct models_HelloRequest: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable {
 
   static func validateVersion() { FlatBuffersVersion_25_12_19() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -62,14 +64,16 @@ public struct models_HelloRequest: FlatBufferVerifiableTable, FlatbuffersVectorI
   private init(_ t: Table) { _accessor = t }
   public init(_ bb: ByteBuffer, o: Int32) { _accessor = Table(bb: bb, position: o) }
 
-  private struct VT {
+  private enum VTOFFSET: VOffset {
-    static let name: VOffset = 4
+    case name = 4
+    var v: Int32 { Int32(self.rawValue) }
+    var p: VOffset { self.rawValue }
   }
 
-  public var name: String? { let o = _accessor.offset(VT.name); return o == 0 ? nil : _accessor.string(at: o) }
+  public var name: String? { let o = _accessor.offset(VTOFFSET.name.v); return o == 0 ? nil : _accessor.string(at: o) }
-  public var nameSegmentArray: [UInt8]? { return _accessor.getVector(at: VT.name) }
+  public var nameSegmentArray: [UInt8]? { return _accessor.getVector(at: VTOFFSET.name.v) }
   public static func startHelloRequest(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 1) }
-  public static func add(name: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: name, at: VT.name) }
+  public static func add(name: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: name, at: VTOFFSET.name.p) }
   public static func endHelloRequest(_ fbb: inout FlatBufferBuilder, start: UOffset) -> Offset { let end = Offset(offset: fbb.endTable(at: start)); return end }
   public static func createHelloRequest(
     _ fbb: inout FlatBufferBuilder,
@@ -82,16 +86,16 @@ public struct models_HelloRequest: FlatBufferVerifiableTable, FlatbuffersVectorI
 
   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: VT.name, fieldName: "name", required: false, type: ForwardOffset<String>.self)
+    try _v.visit(field: VTOFFSET.name.p, fieldName: "name", required: false, type: ForwardOffset<String>.self)
     _v.finish()
   }
 }
 
 extension models_HelloRequest: Encodable {
+
   enum CodingKeys: String, CodingKey {
     case name = "name"
   }
-
   public func encode(to encoder: Encoder) throws {
     var container = encoder.container(keyedBy: CodingKeys.self)
     try container.encodeIfPresent(name, forKey: .name)

grpc/examples/swift/Greeter/Sources/Models/greeter_v2.grpc.swift

@@ -1,572 +0,0 @@
-// Generated GRPC code for FlatBuffers swift!
-/// The following code is generated by the Flatbuffers library which might not be in sync with grpc-swift
-/// in case of an issue please open github issue, though it would be maintained
-
-// swiftlint:disable all
-// swiftformat:disable all
-
-#if !os(Windows) && compiler(>=6.0)
-import FlatBuffers
-import Foundation
-import GRPCCore
-import GRPCNIOTransportCore
-
-
-/// Usage: instantiate models.GreeterServiceClient, then call methods of this protocol to make API calls.
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension FlatBuffersMessageSerializer: MessageSerializer {
-  public func serialize<Bytes>(_ message: Message) throws -> Bytes where Bytes : GRPCCore.GRPCContiguousBytes {
-    do {
-      return try self.serialize(message: message) { GRPCNIOTransportBytes($0) } as! Bytes
-    } catch let error {
-      throw RPCError(
-        code: .invalidArgument,
-        message: "Can't serialize message",
-        cause: error
-      )
-    }
-  }
-}
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension FlatBuffersMessageDeserializer: MessageDeserializer {
-  public func deserialize<Bytes>(_ serializedMessageBytes: Bytes) throws -> Message where Bytes : GRPCCore.GRPCContiguousBytes {
-    do {
-      return try serializedMessageBytes.withUnsafeBytes {
-        try self.deserialize(pointer: $0)
-      }
-    } catch let error {
-      throw RPCError(
-        code: .invalidArgument,
-        message: "Can't Decode message of type \(Message.self)",
-        cause: error
-      )
-    }
-  }
-}
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-public enum models_Greeter: Sendable {
-  public static let descriptor = GRPCCore.ServiceDescriptor(fullyQualifiedService: "models.Greeter")
-  public enum Method: Sendable {
-    public enum Get: Sendable {
-      public typealias Input = FlatBufferBuilder
-      public typealias Output = models_HelloResponse
-      public static let descriptor = GRPCCore.MethodDescriptor(
-        service: GRPCCore.ServiceDescriptor(fullyQualifiedService: "models.Greeter"),
-        method: "Get"
-      )
-    }
-    public enum Collect: Sendable {
-      public typealias Input = FlatBufferBuilder
-      public typealias Output = models_HelloResponse
-      public static let descriptor = GRPCCore.MethodDescriptor(
-        service: GRPCCore.ServiceDescriptor(fullyQualifiedService: "models.Greeter"),
-        method: "Collect"
-      )
-    }
-    public enum Expand: Sendable {
-      public typealias Input = FlatBufferBuilder
-      public typealias Output = models_HelloResponse
-      public static let descriptor = GRPCCore.MethodDescriptor(
-        service: GRPCCore.ServiceDescriptor(fullyQualifiedService: "models.Greeter"),
-        method: "Expand"
-      )
-    }
-    public enum Update: Sendable {
-      public typealias Input = FlatBufferBuilder
-      public typealias Output = models_HelloResponse
-      public static let descriptor = GRPCCore.MethodDescriptor(
-        service: GRPCCore.ServiceDescriptor(fullyQualifiedService: "models.Greeter"),
-        method: "Update"
-      )
-    }
-    public static let descriptors: [GRPCCore.MethodDescriptor] = [
-      Get.descriptor,
-      Collect.descriptor,
-      Expand.descriptor,
-      Update.descriptor,
-    ]
-  }
-}
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension GRPCCore.ServiceDescriptor {
-  public static let models_Greeter = GRPCCore.ServiceDescriptor(fullyQualifiedService: "models.Greeter")
-}
-
-// MARK: models.Greeter Server
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension models_Greeter {
-  public protocol StreamingServiceProtocol: GRPCCore.RegistrableRPCService {
-    func Get(
-      request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-      context: GRPCCore.ServerContext
-    ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>>
-    
-    func Collect(
-      request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-      context: GRPCCore.ServerContext
-    ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>>
-    
-    func Expand(
-      request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-      context: GRPCCore.ServerContext
-    ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>>
-    
-    func Update(
-      request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-      context: GRPCCore.ServerContext
-    ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>>
-    
-  }
-  
-  public protocol ServiceProtocol: models_Greeter.StreamingServiceProtocol {
-    func Get(
-      request: GRPCCore.ServerRequest<GRPCMessage<models_HelloResponse>>,
-      context: GRPCCore.ServerContext
-    ) async throws -> GRPCCore.ServerResponse<GRPCMessage<models_HelloResponse>>
-    
-    func Collect(
-      request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-      context: GRPCCore.ServerContext
-    ) async throws -> GRPCCore.ServerResponse<GRPCMessage<models_HelloResponse>>
-    
-    func Expand(
-      request: GRPCCore.ServerRequest<GRPCMessage<models_HelloResponse>>,
-      context: GRPCCore.ServerContext
-    ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>>
-    
-    func Update(
-      request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-      context: GRPCCore.ServerContext
-    ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>>
-    
-  }
-  
-  public protocol SimpleServiceProtocol: models_Greeter.ServiceProtocol {
-    func Get(
-      request: GRPCMessage<models_HelloResponse>,
-      context: GRPCCore.ServerContext
-    ) async throws -> GRPCMessage<models_HelloResponse>
-    
-    func Collect(
-      request: GRPCCore.RPCAsyncSequence<GRPCMessage<models_HelloResponse>, any Swift.Error>,
-      context: GRPCCore.ServerContext
-    ) async throws -> GRPCMessage<models_HelloResponse>
-    
-    func Expand(
-      request: GRPCMessage<models_HelloResponse>,
-      response: GRPCCore.RPCWriter<GRPCMessage<models_HelloResponse>>,
-      context: GRPCCore.ServerContext
-    ) async throws
-    
-    func Update(
-      request: GRPCCore.RPCAsyncSequence<GRPCMessage<models_HelloResponse>, any Swift.Error>,
-      response: GRPCCore.RPCWriter<GRPCMessage<models_HelloResponse>>,
-      context: GRPCCore.ServerContext
-    ) async throws
-    
-  }
-}
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension models_Greeter.StreamingServiceProtocol {
-  public func registerMethods<Transport>(with router: inout GRPCCore.RPCRouter<Transport>) where Transport: GRPCCore.ServerTransport {
-    router.registerHandler(
-      forMethod: models_Greeter.Method.Get.descriptor,
-      deserializer: FlatBuffersMessageDeserializer<GRPCMessage<models_HelloResponse>>(),
-      serializer: FlatBuffersMessageSerializer<GRPCMessage<models_HelloResponse>>(),
-      handler: { request, context in
-        try await self.Get(
-          request: request,
-          context: context
-        )
-      }
-    )
-    router.registerHandler(
-      forMethod: models_Greeter.Method.Collect.descriptor,
-      deserializer: FlatBuffersMessageDeserializer<GRPCMessage<models_HelloResponse>>(),
-      serializer: FlatBuffersMessageSerializer<GRPCMessage<models_HelloResponse>>(),
-      handler: { request, context in
-        try await self.Collect(
-          request: request,
-          context: context
-        )
-      }
-    )
-    router.registerHandler(
-      forMethod: models_Greeter.Method.Expand.descriptor,
-      deserializer: FlatBuffersMessageDeserializer<GRPCMessage<models_HelloResponse>>(),
-      serializer: FlatBuffersMessageSerializer<GRPCMessage<models_HelloResponse>>(),
-      handler: { request, context in
-        try await self.Expand(
-          request: request,
-          context: context
-        )
-      }
-    )
-    router.registerHandler(
-      forMethod: models_Greeter.Method.Update.descriptor,
-      deserializer: FlatBuffersMessageDeserializer<GRPCMessage<models_HelloResponse>>(),
-      serializer: FlatBuffersMessageSerializer<GRPCMessage<models_HelloResponse>>(),
-      handler: { request, context in
-        try await self.Update(
-          request: request,
-          context: context
-        )
-      }
-    )
-  }
-}
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension models_Greeter.ServiceProtocol {
-  public func Get(
-    request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-    context: GRPCCore.ServerContext
-  ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>> {
-    let response = try await self.Get(
-      request: GRPCCore.ServerRequest(stream: request),
-      context: context
-    )
-    return GRPCCore.StreamingServerResponse(single: response)
-  }
-  public func Collect(
-    request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-    context: GRPCCore.ServerContext
-  ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>> {
-    let response = try await self.Collect(
-      request: request,
-      context: context
-    )
-    return GRPCCore.StreamingServerResponse(single: response)
-  }
-  public func Expand(
-    request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-    context: GRPCCore.ServerContext
-  ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>> {
-    let response = try await self.Expand(
-      request: GRPCCore.ServerRequest(stream: request),
-      context: context
-    )
-    return response
-  }
-}
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension models_Greeter.SimpleServiceProtocol {
-  public func Get(
-    request: GRPCCore.ServerRequest<GRPCMessage<models_HelloResponse>>,
-    context: GRPCCore.ServerContext
-  ) async throws -> GRPCCore.ServerResponse<GRPCMessage<models_HelloResponse>> {
-    return GRPCCore.ServerResponse<GRPCMessage<models_HelloResponse>>(
-      message: try await self.Get(
-        request: request.message,
-        context: context
-      ),
-      metadata: [:]
-    )
-  }
-  public func Collect(
-    request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-    context: GRPCCore.ServerContext
-  ) async throws -> GRPCCore.ServerResponse<GRPCMessage<models_HelloResponse>> {
-    return GRPCCore.ServerResponse<GRPCMessage<models_HelloResponse>>(
-      message: try await self.Collect(
-        request: request.messages,
-        context: context
-      ),
-      metadata: [:]
-    )
-  }
-  public func Expand(
-    request: GRPCCore.ServerRequest<GRPCMessage<models_HelloResponse>>,
-    context: GRPCCore.ServerContext
-  ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>> {
-    return GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>>(
-      metadata: [:],
-      producer: { writer in
-        try await self.Expand(
-          request: request.message,
-          response: writer,
-          context: context
-        )
-        return [:]
-      }
-    )
-  }
-  public func Update(
-    request: GRPCCore.StreamingServerRequest<GRPCMessage<models_HelloResponse>>,
-    context: GRPCCore.ServerContext
-  ) async throws -> GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>> {
-    return GRPCCore.StreamingServerResponse<GRPCMessage<models_HelloResponse>>(
-      metadata: [:],
-      producer: { writer in
-        try await self.Update(
-          request: request.messages,
-          response: writer,
-          context: context
-        )
-        return [:]
-      }
-    )
-  }
-}
-
-
-// MARK: models.Greeter Client
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension models_Greeter {
-  public protocol ClientProtocol: Sendable {
-    func Get<Result>(
-      request: GRPCCore.ClientRequest<GRPCMessage<models_HelloResponse>>,
-      serializer: some GRPCCore.MessageSerializer<GRPCMessage<models_HelloResponse>>,
-      deserializer: some GRPCCore.MessageDeserializer<GRPCMessage<models_HelloResponse>>,
-      options: GRPCCore.CallOptions,
-      onResponse handleResponse: @Sendable @escaping (GRPCCore.ClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result
-    ) async throws -> Result where Result: Sendable
-    
-    func Collect<Result>(
-      request: GRPCCore.StreamingClientRequest<GRPCMessage<models_HelloResponse>>,
-      serializer: some GRPCCore.MessageSerializer<GRPCMessage<models_HelloResponse>>,
-      deserializer: some GRPCCore.MessageDeserializer<GRPCMessage<models_HelloResponse>>,
-      options: GRPCCore.CallOptions,
-      onResponse handleResponse: @Sendable @escaping (GRPCCore.ClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result
-    ) async throws -> Result where Result: Sendable
-    
-    func Expand<Result>(
-      request: GRPCCore.ClientRequest<GRPCMessage<models_HelloResponse>>,
-      serializer: some GRPCCore.MessageSerializer<GRPCMessage<models_HelloResponse>>,
-      deserializer: some GRPCCore.MessageDeserializer<GRPCMessage<models_HelloResponse>>,
-      options: GRPCCore.CallOptions,
-      onResponse handleResponse: @Sendable @escaping (GRPCCore.StreamingClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result
-    ) async throws -> Result where Result: Sendable
-    
-    func Update<Result>(
-      request: GRPCCore.StreamingClientRequest<GRPCMessage<models_HelloResponse>>,
-      serializer: some GRPCCore.MessageSerializer<GRPCMessage<models_HelloResponse>>,
-      deserializer: some GRPCCore.MessageDeserializer<GRPCMessage<models_HelloResponse>>,
-      options: GRPCCore.CallOptions,
-      onResponse handleResponse: @Sendable @escaping (GRPCCore.StreamingClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result
-    ) async throws -> Result where Result: Sendable
-    
-  }
-}
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension models_Greeter {
-  public struct Client<Transport>: ClientProtocol where Transport: GRPCCore.ClientTransport {
-    private let client: GRPCCore.GRPCClient<Transport>
-    
-    public init(wrapping client: GRPCCore.GRPCClient<Transport>) {
-      self.client = client
-    }
-    
-    public func Get<Result>(
-      request: GRPCCore.ClientRequest<GRPCMessage<models_HelloResponse>>,
-      serializer: some GRPCCore.MessageSerializer<GRPCMessage<models_HelloResponse>>,
-      deserializer: some GRPCCore.MessageDeserializer<GRPCMessage<models_HelloResponse>>,
-      options: GRPCCore.CallOptions = .defaults,
-      onResponse handleResponse: @Sendable @escaping (GRPCCore.ClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result = { response in try response.message }
-    ) async throws -> Result where Result: Sendable {
-      try await self.client.unary(
-        request: request,
-        descriptor: models_Greeter.Method.Get.descriptor,
-        serializer: serializer,
-        deserializer: deserializer,
-        options: options,
-        onResponse: handleResponse
-      )
-    }
-    
-    public func Collect<Result>(
-      request: GRPCCore.StreamingClientRequest<GRPCMessage<models_HelloResponse>>,
-      serializer: some GRPCCore.MessageSerializer<GRPCMessage<models_HelloResponse>>,
-      deserializer: some GRPCCore.MessageDeserializer<GRPCMessage<models_HelloResponse>>,
-      options: GRPCCore.CallOptions = .defaults,
-      onResponse handleResponse: @Sendable @escaping (GRPCCore.ClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result = { response in try response.message }
-    ) async throws -> Result where Result: Sendable {
-      try await self.client.clientStreaming(
-        request: request,
-        descriptor: models_Greeter.Method.Collect.descriptor,
-        serializer: serializer,
-        deserializer: deserializer,
-        options: options,
-        onResponse: handleResponse
-      )
-    }
-    
-    public func Expand<Result>(
-      request: GRPCCore.ClientRequest<GRPCMessage<models_HelloResponse>>,
-      serializer: some GRPCCore.MessageSerializer<GRPCMessage<models_HelloResponse>>,
-      deserializer: some GRPCCore.MessageDeserializer<GRPCMessage<models_HelloResponse>>,
-      options: GRPCCore.CallOptions = .defaults,
-      onResponse handleResponse: @Sendable @escaping (GRPCCore.StreamingClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result
-    ) async throws -> Result where Result: Sendable {
-      try await self.client.serverStreaming(
-        request: request,
-        descriptor: models_Greeter.Method.Expand.descriptor,
-        serializer: serializer,
-        deserializer: deserializer,
-        options: options,
-        onResponse: handleResponse
-      )
-    }
-    
-    public func Update<Result>(
-      request: GRPCCore.StreamingClientRequest<GRPCMessage<models_HelloResponse>>,
-      serializer: some GRPCCore.MessageSerializer<GRPCMessage<models_HelloResponse>>,
-      deserializer: some GRPCCore.MessageDeserializer<GRPCMessage<models_HelloResponse>>,
-      options: GRPCCore.CallOptions = .defaults,
-      onResponse handleResponse: @Sendable @escaping (GRPCCore.StreamingClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result
-    ) async throws -> Result where Result: Sendable {
-      try await self.client.bidirectionalStreaming(
-        request: request,
-        descriptor: models_Greeter.Method.Update.descriptor,
-        serializer: serializer,
-        deserializer: deserializer,
-        options: options,
-        onResponse: handleResponse
-      )
-    }
-    
-  }
-}
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension models_Greeter.ClientProtocol {
-  public func Get<Result>(
-    request: GRPCCore.ClientRequest<GRPCMessage<models_HelloResponse>>,
-    options: GRPCCore.CallOptions = .defaults,
-    onResponse handleResponse: @Sendable @escaping (GRPCCore.ClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result = { response in try response.message }
-  ) async throws -> Result where Result: Sendable {
-    try await self.Get(
-      request: request,
-      serializer: FlatBuffersMessageSerializer<GRPCMessage<models_HelloResponse>>(),
-      deserializer: FlatBuffersMessageDeserializer<GRPCMessage<models_HelloResponse>>(),
-      options: options,
-      onResponse: handleResponse
-    )
-  }
-  
-  public func Collect<Result>(
-    request: GRPCCore.StreamingClientRequest<GRPCMessage<models_HelloResponse>>,
-    options: GRPCCore.CallOptions = .defaults,
-    onResponse handleResponse: @Sendable @escaping (GRPCCore.ClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result = { response in try response.message }
-  ) async throws -> Result where Result: Sendable {
-    try await self.Collect(
-      request: request,
-      serializer: FlatBuffersMessageSerializer<GRPCMessage<models_HelloResponse>>(),
-      deserializer: FlatBuffersMessageDeserializer<GRPCMessage<models_HelloResponse>>(),
-      options: options,
-      onResponse: handleResponse
-    )
-  }
-  
-  public func Expand<Result>(
-    request: GRPCCore.ClientRequest<GRPCMessage<models_HelloResponse>>,
-    options: GRPCCore.CallOptions = .defaults,
-    onResponse handleResponse: @Sendable @escaping (GRPCCore.StreamingClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result
-  ) async throws -> Result where Result: Sendable {
-    try await self.Expand(
-      request: request,
-      serializer: FlatBuffersMessageSerializer<GRPCMessage<models_HelloResponse>>(),
-      deserializer: FlatBuffersMessageDeserializer<GRPCMessage<models_HelloResponse>>(),
-      options: options,
-      onResponse: handleResponse
-    )
-  }
-  
-  public func Update<Result>(
-    request: GRPCCore.StreamingClientRequest<GRPCMessage<models_HelloResponse>>,
-    options: GRPCCore.CallOptions = .defaults,
-    onResponse handleResponse: @Sendable @escaping (GRPCCore.StreamingClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result
-  ) async throws -> Result where Result: Sendable {
-    try await self.Update(
-      request: request,
-      serializer: FlatBuffersMessageSerializer<GRPCMessage<models_HelloResponse>>(),
-      deserializer: FlatBuffersMessageDeserializer<GRPCMessage<models_HelloResponse>>(),
-      options: options,
-      onResponse: handleResponse
-    )
-  }
-  
-}
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-extension models_Greeter.ClientProtocol {
-  public func Get<Result>(
-    _ message: GRPCMessage<models_HelloResponse>,
-    metadata: GRPCCore.Metadata = [:],
-    options: GRPCCore.CallOptions = .defaults,
-    onResponse handleResponse: @Sendable @escaping (GRPCCore.ClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result = { try $0.message }
-  ) async throws -> Result where Result: Sendable {
-    let request = GRPCCore.ClientRequest<GRPCMessage<models_HelloResponse>>(
-      message: message,
-      metadata: metadata
-    )
-    return try await self.Get(
-      request: request,
-      options: options,
-      onResponse: handleResponse
-    )
-  }
-  
-  public func Collect<Result>(
-    metadata: GRPCCore.Metadata = [:],
-    options: GRPCCore.CallOptions = .defaults,
-    requestProducer producer: @Sendable @escaping (GRPCCore.RPCWriter<GRPCMessage<models_HelloResponse>>) async throws -> Void,
-    onResponse handleResponse: @Sendable @escaping (GRPCCore.ClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result = { try $0.message }
-  ) async throws -> Result where Result: Sendable {
-    let request = GRPCCore.StreamingClientRequest<GRPCMessage<models_HelloResponse>>(
-      metadata: metadata,
-      producer: producer
-    )
-    return try await self.Collect(
-      request: request,
-      options: options,
-      onResponse: handleResponse
-    )
-  }
-  
-  public func Expand<Result>(
-    _ message: GRPCMessage<models_HelloResponse>,
-    metadata: GRPCCore.Metadata = [:],
-    options: GRPCCore.CallOptions = .defaults,
-    onResponse handleResponse: @Sendable @escaping (GRPCCore.StreamingClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result
-  ) async throws -> Result where Result: Sendable {
-    let request = GRPCCore.ClientRequest<GRPCMessage<models_HelloResponse>>(
-      message: message,
-      metadata: metadata
-    )
-    return try await self.Expand(
-      request: request,
-      options: options,
-      onResponse: handleResponse
-    )
-  }
-  
-  public func Update<Result>(
-    metadata: GRPCCore.Metadata = [:],
-    options: GRPCCore.CallOptions = .defaults,
-    requestProducer producer: @Sendable @escaping (GRPCCore.RPCWriter<GRPCMessage<models_HelloResponse>>) async throws -> Void,
-    onResponse handleResponse: @Sendable @escaping (GRPCCore.StreamingClientResponse<GRPCMessage<models_HelloResponse>>) async throws -> Result
-  ) async throws -> Result where Result: Sendable {
-    let request = GRPCCore.StreamingClientRequest<GRPCMessage<models_HelloResponse>>(
-      metadata: metadata,
-      producer: producer
-    )
-    return try await self.Update(
-      request: request,
-      options: options,
-      onResponse: handleResponse
-    )
-  }
-  
-}
-
-#endif
-

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

@@ -0,0 +1,108 @@
+/*
+ * 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 FlatBuffers
+import GRPC
+import Logging
+import Model
+import NIO
+
+// Quieten the logs.
+LoggingSystem.bootstrap {
+  var handler = StreamLogHandler.standardOutput(label: $0)
+  handler.logLevel = .critical
+  return handler
+}
+
+func greet(name: String, client greeter: models_GreeterServiceClient) {
+  // Form the request with the name, if one was provided.
+  var builder = FlatBufferBuilder()
+  let nameOff = builder.create(string: name)
+  let root = models_HelloRequest.createHelloRequest(
+    &builder,
+    nameOffset: nameOff)
+  builder.finish(offset: root)
+
+  // Make the RPC call to the server.
+  let sayHello =
+    greeter
+      .SayHello(Message<models_HelloRequest>(builder: &builder))
+
+  // wait() on the response to stop the program from exiting before the response is received.
+  do {
+    let response = try sayHello.response.wait()
+    print("Greeter SayHello received: \(response.object.message ?? "Unknown")")
+  } catch {
+    print("Greeter failed: \(error)")
+  }
+
+  let surname = builder.create(string: name)
+  let manyRoot = models_HelloRequest.createHelloRequest(
+    &builder,
+    nameOffset: surname)
+  builder.finish(offset: manyRoot)
+
+  let call = greeter.SayManyHellos(Message(builder: &builder)) { message in
+    print(
+      "Greeter SayManyHellos received: \(message.object.message  ?? "Unknown")")
+  }
+
+  let status = try! call.status.recover { _ in .processingError }.wait()
+  if status.code != .ok {
+    print("RPC failed: \(status)")
+  }
+}
+
+func main(args: [String]) {
+  // arg0 (dropped) is the program name. We expect arg1 to be the port, and arg2 (optional) to be
+  // the name sent in the request.
+  let arg1 = args.dropFirst(1).first
+  let arg2 = args.dropFirst(2).first
+
+  switch (arg1.flatMap(Int.init), arg2) {
+  case (.none, _):
+    print("Usage: PORT [NAME]")
+    exit(1)
+
+  case (.some(let port), let name):
+    // Setup an `EventLoopGroup` for the connection to run on.
+    //
+    // See: https://github.com/apple/swift-nio#eventloops-and-eventloopgroups
+    let group = MultiThreadedEventLoopGroup(numberOfThreads: 1)
+
+    // Make sure the group is shutdown when we're done with it.
+    defer {
+      try! group.syncShutdownGracefully()
+    }
+
+    // Configure the channel, we're not using TLS so the connection is `insecure`.
+    let channel = ClientConnection.insecure(group: group)
+      .connect(host: "localhost", port: port)
+
+    // Close the connection when we're done with it.
+    defer {
+      try! channel.close().wait()
+    }
+
+    // Provide the connection to the generated client.
+    let greeter = models_GreeterServiceClient(channel: channel)
+
+    // Do the greeting.
+    greet(name: name ?? "FlatBuffers!", client: greeter)
+  }
+}
+
+main(args: CommandLine.arguments)

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

@@ -0,0 +1,97 @@
+/*
+ * 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 FlatBuffers
+import GRPC
+import Logging
+import Model
+import NIO
+
+class Greeter: models_GreeterProvider {
+
+  var interceptors: models_GreeterServerInterceptorFactoryProtocol?
+
+  let greetings: [String]
+
+  init() {
+    greetings = ["Hi", "Hallo", "Ciao"]
+  }
+
+  func SayHello(
+    request: Message<models_HelloRequest>,
+    context: StatusOnlyCallContext)
+    -> EventLoopFuture<Message<models_HelloReply>>
+  {
+    let recipient = request.object.name ?? "Stranger"
+
+    var builder = FlatBufferBuilder()
+    let off = builder.create(string: "Hello \(recipient)")
+    let root = models_HelloReply.createHelloReply(&builder, messageOffset: off)
+    builder.finish(offset: root)
+    return context.eventLoop
+      .makeSucceededFuture(Message<models_HelloReply>(builder: &builder))
+  }
+
+  func SayManyHellos(
+    request: Message<models_HelloRequest>,
+    context: StreamingResponseCallContext<Message<models_HelloReply>>)
+    -> EventLoopFuture<GRPCStatus>
+  {
+    for name in greetings {
+      var builder = FlatBufferBuilder()
+      let off =
+        builder
+          .create(string: "\(name) \(request.object.name ?? "Unknown")")
+      let root = models_HelloReply.createHelloReply(
+        &builder,
+        messageOffset: off)
+      builder.finish(offset: root)
+      _ = context.sendResponse(Message<models_HelloReply>(builder: &builder))
+    }
+    return context.eventLoop.makeSucceededFuture(.ok)
+  }
+}
+
+// Quieten the logs.
+LoggingSystem.bootstrap {
+  var handler = StreamLogHandler.standardOutput(label: $0)
+  handler.logLevel = .critical
+  return handler
+}
+
+let group = MultiThreadedEventLoopGroup(numberOfThreads: 1)
+defer {
+  try! group.syncShutdownGracefully()
+}
+
+// Create some configuration for the server:
+let configuration = Server.Configuration(
+  target: .hostAndPort("localhost", 0),
+  eventLoopGroup: group,
+  serviceProviders: [Greeter()])
+
+// Start the server and print its address once it has started.
+let server = Server.start(configuration: configuration)
+server.map {
+  $0.channel.localAddress
+}.whenSuccess { address in
+  print("server started on port \(address!.port!)")
+}
+
+// Wait on the server's `onClose` future to stop the program from exiting.
+_ = try server.flatMap {
+  $0.onClose
+}.wait()

grpc/src/compiler/python_generator.cc

@@ -172,7 +172,6 @@ class StubGenerator : public BaseGenerator {
        << "  def __init__(self, channel: grpc.Channel) -> None: ...\n";
 
     for (const RPCCall* method : service->calls.vec) {
-      imports->Import("typing");
       std::string request = "bytes";
       std::string response = "bytes";
 
@@ -184,22 +183,14 @@ class StubGenerator : public BaseGenerator {
         imports->Import(ModuleFor(method->response), response);
       }
 
-      ss << "  def " << method->name << "(\n";
+      ss << "  def " << method->name << "(self, ";
-      ss << "      self,\n";
       if (ClientStreaming(method)) {
-        ss << "      request_iterator: typing.Iterator[" << request << "]\n";
+        imports->Import("typing");
+        ss << "request_iterator: typing.Iterator[" << request << "]";
       } else {
-        ss << "      request: " << request << ",\n";
+        ss << "request: " << request;
       }
-
+      ss << ") -> ";
-      ss << "      timeout: float | None = None,\n";
-      // https://github.com/python/typeshed/blob/ccf9411fb1f5bee2a8e3d278889de17a08f7bbe3/stubs/grpcio/grpc/__init__.pyi#L37
-      ss << "      metadata: typing.Sequence[tuple[str, typing.Union[str, bytes]]] | None = None,\n";
-      ss << "      credentials: grpc.CallCredentials | None = None,\n";
-      ss << "      wait_for_ready: bool | None = None,\n";
-      ss << "      compression: grpc.Compression | None = None\n";
-
-      ss << "  ) -> ";
       if (ServerStreaming(method)) {
         imports->Import("typing");
         ss << "typing.Iterator[" << response << "]";

include/flatbuffers/base.h

@@ -142,6 +142,19 @@
 #define FLATBUFFERS_VERSION_MAJOR 25
 #define FLATBUFFERS_VERSION_MINOR 12
 #define FLATBUFFERS_VERSION_REVISION 19
+
+// Identifies this header as Bigfoot's fork of flatbuffers, and versions the
+// fork's own generated-code-affecting changes independently of the upstream
+// FLATBUFFERS_VERSION_* triplet above (which just tracks the upstream
+// version this fork is based on, and would still match an unforked, stock
+// flatbuffers install of the same version). Generated headers assert on
+// this - see GenFlatbuffersVersionCheck() in idl_gen_cpp.cpp - so building
+// Bigfoot-generated code against stock flatbuffers, or a differently
+// versioned Bigfoot fork, fails to compile immediately instead of silently
+// miscompiling. Bump this whenever a change here affects what generated
+// code assumes about this header (e.g. adding bigfoot_ref/bigfoot_ref_wrapper).
+#define FLATBUFFERS_BIGFOOT_VERSION 1
+
 #define FLATBUFFERS_STRING_EXPAND(X) #X
 #define FLATBUFFERS_STRING(X) FLATBUFFERS_STRING_EXPAND(X)
 namespace flatbuffers {

include/flatbuffers/flexbuffers.h

@@ -1207,20 +1207,11 @@ class Builder FLATBUFFERS_FINAL_CLASS {
     String(str);
   }
 
-  size_t AlignedBlob(const void* data, size_t len, BitWidth alignment) {
-    // The requested alignment must not be smaller than the one required to
-    // store the length.
-    return CreateAlignedBlob(data, len, 0, FBT_BLOB,
-                             std::max(alignment, WidthU(len)));
-  }
-  size_t AlignedBlob(const std::vector<uint8_t>& v, BitWidth alignment) {
-    return AlignedBlob(v.data(), v.size(), alignment);
-  }
   size_t Blob(const void* data, size_t len) {
     return CreateBlob(data, len, 0, FBT_BLOB);
   }
   size_t Blob(const std::vector<uint8_t>& v) {
-    return Blob(v.data(), v.size());
+    return CreateBlob(v.data(), v.size(), 0, FBT_BLOB);
   }
 
   void Blob(const char* key, const void* data, size_t len) {
@@ -1702,16 +1693,11 @@ class Builder FLATBUFFERS_FINAL_CLASS {
 
   size_t CreateBlob(const void* data, size_t len, size_t trailing, Type type) {
     auto bit_width = WidthU(len);
-    return CreateAlignedBlob(data, len, trailing, type, bit_width);
+    auto byte_width = Align(bit_width);
-  }
-
-  size_t CreateAlignedBlob(const void* data, size_t len, size_t trailing,
-                           Type type, BitWidth alignment) {
-    auto byte_width = Align(alignment);
     Write<uint64_t>(len, byte_width);
     auto sloc = buf_.size();
     WriteBytes(data, len + trailing);
-    stack_.push_back(Value(static_cast<uint64_t>(sloc), type, alignment));
+    stack_.push_back(Value(static_cast<uint64_t>(sloc), type, bit_width));
     return sloc;
   }
 
@@ -1976,7 +1962,7 @@ class Verifier FLATBUFFERS_FINAL_CLASS {
   bool VerifyKey(const uint8_t* p) {
     FLEX_CHECK_VERIFIED(p, PackedType(BIT_WIDTH_8, FBT_KEY));
     while (p < buf_ + size_)
-      if (!*p++) return true;
+      if (*p++) return true;
     return false;
   }
 

include/flatbuffers/idl.h

@@ -677,6 +677,7 @@ struct IDLOptions {
   std::string cpp_object_api_pointer_type;
   std::string cpp_object_api_string_type;
   bool cpp_object_api_string_flexible_constructor;
+  std::string cpp_object_api_vector_type;
   CaseStyle cpp_object_api_field_case_style;
   bool cpp_direct_copy;
   bool gen_nullable;
@@ -1012,10 +1013,13 @@ class Parser : public ParserState {
     known_attributes_["cpp_ptr_type_get"] = true;
     known_attributes_["cpp_str_type"] = true;
     known_attributes_["cpp_str_flex_ctor"] = true;
+    known_attributes_["cpp_vector_type"] = true;
     known_attributes_["native_inline"] = true;
     known_attributes_["native_custom_alloc"] = true;
     known_attributes_["native_type"] = true;
     known_attributes_["native_type_pack_name"] = true;
+    known_attributes_["bigfoot_ref_wrapper"] = true;
+    known_attributes_["bigfoot_ref"] = true;
     known_attributes_["native_default"] = true;
     known_attributes_["flexbuffer"] = true;
     known_attributes_["private"] = true;

include/flatbuffers/reflection.h

@@ -30,52 +30,50 @@ namespace flatbuffers {
 
 // ------------------------- GETTERS -------------------------
 
-constexpr bool IsScalar(reflection::BaseType t) {
+inline bool IsScalar(reflection::BaseType t) {
   return t >= reflection::UType && t <= reflection::Double;
 }
-constexpr bool IsInteger(reflection::BaseType t) {
+inline bool IsInteger(reflection::BaseType t) {
   return t >= reflection::UType && t <= reflection::ULong;
 }
-constexpr bool IsFloat(reflection::BaseType t) {
+inline bool IsFloat(reflection::BaseType t) {
   return t == reflection::Float || t == reflection::Double;
 }
-constexpr bool IsLong(reflection::BaseType t) {
+inline bool IsLong(reflection::BaseType t) {
   return t == reflection::Long || t == reflection::ULong;
 }
 
-// This needs to correspond to the BaseType enum.
-constexpr size_t kBaseTypeSize[] = {
-    0,  // None
-    1,  // UType
-    1,  // Bool
-    1,  // Byte
-    1,  // UByte
-    2,  // Short
-    2,  // UShort
-    4,  // Int
-    4,  // UInt
-    8,  // Long
-    8,  // ULong
-    4,  // Float
-    8,  // Double
-    4,  // String
-    4,  // Vector
-    4,  // Obj
-    4,  // Union
-    0,  // Array. Only used in structs. 0 was chosen to prevent out-of-bounds
-        // errors.
-    8,  // Vector64
-
-    0  // MaxBaseType. This must be kept the last entry in this array.
-};
-static_assert(sizeof(kBaseTypeSize) / sizeof(size_t) ==
-                  reflection::MaxBaseType + 1,
-              "Size of sizes[] array does not match the count of BaseType "
-              "enum values.");
-
 // Size of a basic type, don't use with structs.
-constexpr size_t GetTypeSize(reflection::BaseType base_type) {
+inline size_t GetTypeSize(reflection::BaseType base_type) {
-  return kBaseTypeSize[base_type];
+  // This needs to correspond to the BaseType enum.
+  static size_t sizes[] = {
+      0,  // None
+      1,  // UType
+      1,  // Bool
+      1,  // Byte
+      1,  // UByte
+      2,  // Short
+      2,  // UShort
+      4,  // Int
+      4,  // UInt
+      8,  // Long
+      8,  // ULong
+      4,  // Float
+      8,  // Double
+      4,  // String
+      4,  // Vector
+      4,  // Obj
+      4,  // Union
+      0,  // Array. Only used in structs. 0 was chosen to prevent out-of-bounds
+          // errors.
+      8,  // Vector64
+
+      0  // MaxBaseType. This must be kept the last entry in this array.
+  };
+  static_assert(sizeof(sizes) / sizeof(size_t) == reflection::MaxBaseType + 1,
+                "Size of sizes[] array does not match the count of BaseType "
+                "enum values.");
+  return sizes[base_type];
 }
 
 // Same as above, but now correctly returns the size of a struct if
@@ -422,7 +420,7 @@ pointer_inside_vector<T, U> piv(T* ptr, std::vector<U>& vec) {
   return pointer_inside_vector<T, U>(ptr, vec);
 }
 
-constexpr const char* UnionTypeFieldSuffix() { return "_type"; }
+inline const char* UnionTypeFieldSuffix() { return "_type"; }
 
 // Helper to figure out the actual table type a union refers to.
 inline const reflection::Object& GetUnionType(

net/FlatBuffers/FlatBufferBuilder.cs

@@ -438,7 +438,8 @@ namespace Google.FlatBuffers
             if (off > Offset)
                 throw new ArgumentException();
 
-            off = Offset - off + sizeof(int);
+            if (off != 0)
+                off = Offset - off + sizeof(int);
             PutInt(off);
         }
 

net/FlatBuffers/Table.cs

@@ -65,7 +65,11 @@ namespace Google.FlatBuffers
         // Create a .NET String from UTF-8 data stored inside the flatbuffer.
         public string __string(int offset)
         {
-            offset += bb.GetInt(offset);
+            int stringOffset = bb.GetInt(offset);
+            if (stringOffset == 0)
+                return null;
+
+            offset += stringOffset;
             var len = bb.GetInt(offset);
             var startPos = offset + sizeof(int);
             return bb.GetStringUTF8(startPos, len);

pnpm-lock.yaml

@@ -33,12 +33,6 @@ importers:
         specifier: ^8.34.1
         version: 8.34.1(eslint@9.29.0)(typescript@5.8.3)
 
-  tests/ts:
-    dependencies:
-      flatbuffers:
-        specifier: workspace:*
-        version: link:../..
-
 packages:
 
   '@esbuild/aix-ppc64@0.25.5':
@@ -349,8 +343,8 @@ packages:
     engines: {node: '>=0.4.0'}
     hasBin: true
 
-  ajv@6.14.0:
+  ajv@6.12.6:
-    resolution: {integrity: sha512-IWrosm/yrn43eiKqkfkHis7QioDleaXQHdDVPKg0FSwwd/DuvyX79TZnFOnYpB7dcsFAMmtFztZuXPDvSePkFw==}
+    resolution: {integrity: sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==}
 
   ansi-styles@4.3.0:
     resolution: {integrity: sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==}
@@ -489,8 +483,8 @@ packages:
     resolution: {integrity: sha512-f7ccFPK3SXFHpx15UIGyRJ/FJQctuKZ0zVuN3frBo4HnK3cay9VEW0R6yPYFHC0AgqhukPzKjq22t5DmAyqGyw==}
     engines: {node: '>=16'}
 
-  flatted@3.4.2:
+  flatted@3.3.1:
-    resolution: {integrity: sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==}
+    resolution: {integrity: sha512-X8cqMLLie7KsNUDSdzeN8FYK9rEt4Dt67OsG/DNGnYTSDBG4uFAJFBnUeiV+zCVAvwFy56IjM9sH51jVaEhNxw==}
 
   glob-parent@5.1.2:
     resolution: {integrity: sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==}
@@ -577,11 +571,11 @@ packages:
     resolution: {integrity: sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA==}
     engines: {node: '>=8.6'}
 
-  minimatch@3.1.5:
+  minimatch@3.1.2:
-    resolution: {integrity: sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==}
+    resolution: {integrity: sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==}
 
-  minimatch@9.0.9:
+  minimatch@9.0.5:
-    resolution: {integrity: sha512-OBwBN9AL4dqmETlpS2zasx+vTeWclWzkblfZk7KTA5j3jeOONz/tRCnZomUyvNg83wL5Zv9Ss6HMJXAgL8R2Yg==}
+    resolution: {integrity: sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==}
     engines: {node: '>=16 || 14 >=14.17'}
 
   ms@2.1.3:
@@ -799,7 +793,7 @@ snapshots:
     dependencies:
       '@eslint/object-schema': 2.1.6
       debug: 4.3.7
-      minimatch: 3.1.5
+      minimatch: 3.1.2
     transitivePeerDependencies:
       - supports-color
 
@@ -815,14 +809,14 @@ snapshots:
 
   '@eslint/eslintrc@3.3.1':
     dependencies:
-      ajv: 6.14.0
+      ajv: 6.12.6
       debug: 4.3.7
       espree: 10.4.0
       globals: 14.0.0
       ignore: 5.3.2
       import-fresh: 3.3.0
       js-yaml: 4.1.1
-      minimatch: 3.1.5
+      minimatch: 3.1.2
       strip-json-comments: 3.1.1
     transitivePeerDependencies:
       - supports-color
@@ -938,7 +932,7 @@ snapshots:
       debug: 4.3.7
       fast-glob: 3.3.2
       is-glob: 4.0.3
-      minimatch: 9.0.9
+      minimatch: 9.0.5
       semver: 7.6.3
       ts-api-utils: 2.1.0(typescript@5.8.3)
       typescript: 5.8.3
@@ -967,7 +961,7 @@ snapshots:
 
   acorn@8.15.0: {}
 
-  ajv@6.14.0:
+  ajv@6.12.6:
     dependencies:
       fast-deep-equal: 3.1.3
       fast-json-stable-stringify: 2.1.0
@@ -1076,7 +1070,7 @@ snapshots:
       '@humanwhocodes/retry': 0.4.3
       '@types/estree': 1.0.8
       '@types/json-schema': 7.0.15
-      ajv: 6.14.0
+      ajv: 6.12.6
       chalk: 4.1.2
       cross-spawn: 7.0.6
       debug: 4.3.7
@@ -1095,7 +1089,7 @@ snapshots:
       is-glob: 4.0.3
       json-stable-stringify-without-jsonify: 1.0.1
       lodash.merge: 4.6.2
-      minimatch: 3.1.5
+      minimatch: 3.1.2
       natural-compare: 1.4.0
       optionator: 0.9.4
     transitivePeerDependencies:
@@ -1152,10 +1146,10 @@ snapshots:
 
   flat-cache@4.0.1:
     dependencies:
-      flatted: 3.4.2
+      flatted: 3.3.1
       keyv: 4.5.4
 
-  flatted@3.4.2: {}
+  flatted@3.3.1: {}
 
   glob-parent@5.1.2:
     dependencies:
@@ -1224,11 +1218,11 @@ snapshots:
       braces: 3.0.3
       picomatch: 2.3.1
 
-  minimatch@3.1.5:
+  minimatch@3.1.2:
     dependencies:
       brace-expansion: 1.1.12
 
-  minimatch@9.0.9:
+  minimatch@9.0.5:
     dependencies:
       brace-expansion: 2.0.2
 

pnpm-workspace.yaml

@@ -1,2 +0,0 @@
-packages:
-  - tests/ts

python/flatbuffers/reflection/Enum.py

@@ -159,7 +159,7 @@ def EnumCreateValuesVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateValuesVector(builder, data):
-    return EnumCreateValuesVector(builder, data)
+    EnumCreateValuesVector(builder, data)
 
 def EnumAddIsUnion(builder, isUnion):
     builder.PrependBoolSlot(2, isUnion, 0)
@@ -189,7 +189,7 @@ def EnumCreateAttributesVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateAttributesVector(builder, data):
-    return EnumCreateAttributesVector(builder, data)
+    EnumCreateAttributesVector(builder, data)
 
 def EnumAddDocumentation(builder, documentation):
     builder.PrependUOffsetTRelativeSlot(5, flatbuffers.number_types.UOffsetTFlags.py_type(documentation), 0)
@@ -207,7 +207,7 @@ def EnumCreateDocumentationVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateDocumentationVector(builder, data):
-    return EnumCreateDocumentationVector(builder, data)
+    EnumCreateDocumentationVector(builder, data)
 
 def EnumAddDeclarationFile(builder, declarationFile):
     builder.PrependUOffsetTRelativeSlot(6, flatbuffers.number_types.UOffsetTFlags.py_type(declarationFile), 0)

python/flatbuffers/reflection/EnumVal.py

@@ -138,7 +138,7 @@ def EnumValCreateDocumentationVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateDocumentationVector(builder, data):
-    return EnumValCreateDocumentationVector(builder, data)
+    EnumValCreateDocumentationVector(builder, data)
 
 def EnumValAddAttributes(builder, attributes):
     builder.PrependUOffsetTRelativeSlot(5, flatbuffers.number_types.UOffsetTFlags.py_type(attributes), 0)
@@ -156,7 +156,7 @@ def EnumValCreateAttributesVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateAttributesVector(builder, data):
-    return EnumValCreateAttributesVector(builder, data)
+    EnumValCreateAttributesVector(builder, data)
 
 def EnumValEnd(builder):
     return builder.EndObject()

python/flatbuffers/reflection/Field.py

@@ -239,7 +239,7 @@ def FieldCreateAttributesVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateAttributesVector(builder, data):
-    return FieldCreateAttributesVector(builder, data)
+    FieldCreateAttributesVector(builder, data)
 
 def FieldAddDocumentation(builder, documentation):
     builder.PrependUOffsetTRelativeSlot(10, flatbuffers.number_types.UOffsetTFlags.py_type(documentation), 0)
@@ -257,7 +257,7 @@ def FieldCreateDocumentationVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateDocumentationVector(builder, data):
-    return FieldCreateDocumentationVector(builder, data)
+    FieldCreateDocumentationVector(builder, data)
 
 def FieldAddOptional(builder, optional):
     builder.PrependBoolSlot(11, optional, 0)

python/flatbuffers/reflection/Object.py

@@ -162,7 +162,7 @@ def ObjectCreateFieldsVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateFieldsVector(builder, data):
-    return ObjectCreateFieldsVector(builder, data)
+    ObjectCreateFieldsVector(builder, data)
 
 def ObjectAddIsStruct(builder, isStruct):
     builder.PrependBoolSlot(2, isStruct, 0)
@@ -198,7 +198,7 @@ def ObjectCreateAttributesVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateAttributesVector(builder, data):
-    return ObjectCreateAttributesVector(builder, data)
+    ObjectCreateAttributesVector(builder, data)
 
 def ObjectAddDocumentation(builder, documentation):
     builder.PrependUOffsetTRelativeSlot(6, flatbuffers.number_types.UOffsetTFlags.py_type(documentation), 0)
@@ -216,7 +216,7 @@ def ObjectCreateDocumentationVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateDocumentationVector(builder, data):
-    return ObjectCreateDocumentationVector(builder, data)
+    ObjectCreateDocumentationVector(builder, data)
 
 def ObjectAddDeclarationFile(builder, declarationFile):
     builder.PrependUOffsetTRelativeSlot(7, flatbuffers.number_types.UOffsetTFlags.py_type(declarationFile), 0)

python/flatbuffers/reflection/RPCCall.py

@@ -142,7 +142,7 @@ def RPCCallCreateAttributesVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateAttributesVector(builder, data):
-    return RPCCallCreateAttributesVector(builder, data)
+    RPCCallCreateAttributesVector(builder, data)
 
 def RPCCallAddDocumentation(builder, documentation):
     builder.PrependUOffsetTRelativeSlot(4, flatbuffers.number_types.UOffsetTFlags.py_type(documentation), 0)
@@ -160,7 +160,7 @@ def RPCCallCreateDocumentationVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateDocumentationVector(builder, data):
-    return RPCCallCreateDocumentationVector(builder, data)
+    RPCCallCreateDocumentationVector(builder, data)
 
 def RPCCallEnd(builder):
     return builder.EndObject()

python/flatbuffers/reflection/Schema.py

@@ -184,7 +184,7 @@ def SchemaCreateObjectsVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateObjectsVector(builder, data):
-    return SchemaCreateObjectsVector(builder, data)
+    SchemaCreateObjectsVector(builder, data)
 
 def SchemaAddEnums(builder, enums):
     builder.PrependUOffsetTRelativeSlot(1, flatbuffers.number_types.UOffsetTFlags.py_type(enums), 0)
@@ -202,7 +202,7 @@ def SchemaCreateEnumsVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateEnumsVector(builder, data):
-    return SchemaCreateEnumsVector(builder, data)
+    SchemaCreateEnumsVector(builder, data)
 
 def SchemaAddFileIdent(builder, fileIdent):
     builder.PrependUOffsetTRelativeSlot(2, flatbuffers.number_types.UOffsetTFlags.py_type(fileIdent), 0)
@@ -238,7 +238,7 @@ def SchemaCreateServicesVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateServicesVector(builder, data):
-    return SchemaCreateServicesVector(builder, data)
+    SchemaCreateServicesVector(builder, data)
 
 def SchemaAddAdvancedFeatures(builder, advancedFeatures):
     builder.PrependUint64Slot(6, advancedFeatures, 0)
@@ -262,7 +262,7 @@ def SchemaCreateFbsFilesVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateFbsFilesVector(builder, data):
-    return SchemaCreateFbsFilesVector(builder, data)
+    SchemaCreateFbsFilesVector(builder, data)
 
 def SchemaEnd(builder):
     return builder.EndObject()

python/flatbuffers/reflection/SchemaFile.py

@@ -88,7 +88,7 @@ def SchemaFileCreateIncludedFilenamesVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateIncludedFilenamesVector(builder, data):
-    return SchemaFileCreateIncludedFilenamesVector(builder, data)
+    SchemaFileCreateIncludedFilenamesVector(builder, data)
 
 def SchemaFileEnd(builder):
     return builder.EndObject()

python/flatbuffers/reflection/Service.py

@@ -141,7 +141,7 @@ def ServiceCreateCallsVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateCallsVector(builder, data):
-    return ServiceCreateCallsVector(builder, data)
+    ServiceCreateCallsVector(builder, data)
 
 def ServiceAddAttributes(builder, attributes):
     builder.PrependUOffsetTRelativeSlot(2, flatbuffers.number_types.UOffsetTFlags.py_type(attributes), 0)
@@ -159,7 +159,7 @@ def ServiceCreateAttributesVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateAttributesVector(builder, data):
-    return ServiceCreateAttributesVector(builder, data)
+    ServiceCreateAttributesVector(builder, data)
 
 def ServiceAddDocumentation(builder, documentation):
     builder.PrependUOffsetTRelativeSlot(3, flatbuffers.number_types.UOffsetTFlags.py_type(documentation), 0)
@@ -177,7 +177,7 @@ def ServiceCreateDocumentationVector(builder, data):
     return builder.CreateVectorOfTables(data)
 
 def CreateDocumentationVector(builder, data):
-    return ServiceCreateDocumentationVector(builder, data)
+    ServiceCreateDocumentationVector(builder, data)
 
 def ServiceAddDeclarationFile(builder, declarationFile):
     builder.PrependUOffsetTRelativeSlot(4, flatbuffers.number_types.UOffsetTFlags.py_type(declarationFile), 0)

python/setup.cfg

@@ -1,2 +1,6 @@
+[bdist_wheel]
+universal=1
+
 [metadata]
-license_files = LICENSE
+license_files =
+   ../LICENSE

python/setup.py

@@ -12,54 +12,35 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from pathlib import Path
-import shutil
-
 from setuptools import setup
 
-
+setup(
-_THIS_DIR = Path(__file__).resolve().parent
+    name='flatbuffers',
-_ROOT_LICENSE = _THIS_DIR.parent / 'LICENSE'
+    version='25.12.19',
-_LOCAL_LICENSE = _THIS_DIR / 'LICENSE'
+    license='Apache 2.0',
-
+    author='Derek Bailey',
-
+    author_email='derekbailey@google.com',
-def _stage_license_file():
+    url='https://google.github.io/flatbuffers/',
-    if _LOCAL_LICENSE.exists() or not _ROOT_LICENSE.exists():
+    long_description=(
-        return False
+        'Python runtime library for use with the '
-    shutil.copyfile(_ROOT_LICENSE, _LOCAL_LICENSE)
+        '`Flatbuffers <https://google.github.io/flatbuffers/>`_ '
-    return True
+        'serialization format.'
-
+    ),
-_remove_staged_license = _stage_license_file()
+    packages=['flatbuffers'],
-
+    include_package_data=True,
-try:
+    requires=[],
-    setup(
+    description='The FlatBuffers serialization format for Python',
-        name='flatbuffers',
+    classifiers=[
-        version='25.12.19',
+        'Intended Audience :: Developers',
-        license='Apache 2.0',
+        'License :: OSI Approved :: Apache Software License',
-        author='Derek Bailey',
+        'Operating System :: OS Independent',
-        author_email='derekbailey@google.com',
+        'Programming Language :: Python',
-        url='https://google.github.io/flatbuffers/',
+        'Programming Language :: Python :: 2',
-        long_description=(
+        'Programming Language :: Python :: 3',
-            'Python runtime library for use with the '
+        'Topic :: Software Development :: Libraries :: Python Modules',
-            '`Flatbuffers <https://google.github.io/flatbuffers/>`_ '
+    ],
-            'serialization format.'
+    project_urls={
-        ),
+        'Documentation': 'https://google.github.io/flatbuffers/',
-        packages=['flatbuffers'],
+        'Source': 'https://github.com/google/flatbuffers',
-        include_package_data=True,
+    },
-        requires=[],
+)
-        description='The FlatBuffers serialization format for Python',
-        classifiers=[
-            'Intended Audience :: Developers',
-            'Operating System :: OS Independent',
-            'Programming Language :: Python',
-            'Programming Language :: Python :: 3',
-            'Topic :: Software Development :: Libraries :: Python Modules',
-        ],
-        project_urls={
-            'Documentation': 'https://google.github.io/flatbuffers/',
-            'Source': 'https://github.com/google/flatbuffers',
-        },
-    )
-finally:
-    if _remove_staged_license and _LOCAL_LICENSE.exists():
-        _LOCAL_LICENSE.unlink()

rust/flatbuffers/src/builder.rs

@@ -24,9 +24,6 @@ use core::marker::PhantomData;
 use core::ops::{Add, AddAssign, Deref, DerefMut, Index, IndexMut, Sub, SubAssign};
 use core::ptr::write_bytes;
 
-#[cfg(feature = "std")]
-use std::collections::HashMap;
-
 use crate::endian_scalar::emplace_scalar;
 use crate::primitives::*;
 use crate::push::{Push, PushAlignment};
@@ -142,9 +139,6 @@ pub struct FlatBufferBuilder<'fbb, A: Allocator = DefaultAllocator> {
 
     min_align: usize,
     force_defaults: bool,
-    #[cfg(feature = "std")]
-    strings_pool: HashMap<String, WIPOffset<&'fbb str>>,
-    #[cfg(not(feature = "std"))]
     strings_pool: Vec<WIPOffset<&'fbb str>>,
 
     _phantom: PhantomData<&'fbb ()>,
@@ -166,60 +160,6 @@ impl<'fbb> FlatBufferBuilder<'fbb, DefaultAllocator> {
     pub fn with_capacity(size: usize) -> Self {
         Self::from_vec(vec![0; size])
     }
-    /// Create a FlatBufferBuilder that is ready for writing, with a
-    /// ready-to-use capacity of the provided size and preallocated internal vecs.
-    ///
-    /// The maximum valid value for `size` is `FLATBUFFERS_MAX_BUFFER_SIZE`.
-    ///
-    /// # Arguments
-    ///
-    /// * `size` - The initial capacity of the backing buffer in bytes.
-    /// * `field_locs_capacity` - Preallocated capacity for the field locations vec.
-    /// * `written_vtable_revpos_capacity` - Preallocated capacity for the written vtable reverse positions vec.
-    /// * `strings_pool_capacity` - Preallocated capacity for the shared strings pool vec.
-    pub fn with_internal_capacity(
-        size: usize,
-        field_locs_capacity: usize,
-        written_vtable_revpos_capacity: usize,
-        strings_pool_capacity: usize,
-    ) -> Self {
-        Self::from_vec_with_internal_capacity(
-            vec![0; size],
-            field_locs_capacity,
-            written_vtable_revpos_capacity,
-            strings_pool_capacity,
-        )
-    }
-    /// Create a FlatBufferBuilder that is ready for writing, reusing
-    /// an existing vector and preallocated internal vecs.
-    ///
-    /// # Arguments
-    ///
-    /// * `buffer` - An existing `Vec<u8>` to reuse as the backing buffer.
-    /// * `field_locs_capacity` - Preallocated capacity for the field locations vec.
-    /// * `written_vtable_revpos_capacity` - Preallocated capacity for the written vtable reverse positions vec.
-    /// * `strings_pool_capacity` - Preallocated capacity for the shared strings pool vec.
-    pub fn from_vec_with_internal_capacity(
-        buffer: Vec<u8>,
-        field_locs_capacity: usize,
-        written_vtable_revpos_capacity: usize,
-        strings_pool_capacity: usize,
-    ) -> Self {
-        // we need to check the size here because we create the backing buffer
-        // directly, bypassing the typical way of using grow_allocator:
-        assert!(
-            buffer.len() <= FLATBUFFERS_MAX_BUFFER_SIZE,
-            "cannot initialize buffer bigger than 2 gigabytes"
-        );
-        let allocator = DefaultAllocator::from_vec(buffer);
-        Self::new_in_with_internal_capacity(
-            allocator,
-            field_locs_capacity,
-            written_vtable_revpos_capacity,
-            strings_pool_capacity,
-        )
-    }
-
     /// Create a FlatBufferBuilder that is ready for writing, reusing
     /// an existing vector.
     pub fn from_vec(buffer: Vec<u8>) -> Self {
@@ -257,52 +197,12 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
 
             min_align: 0,
             force_defaults: false,
-            #[cfg(feature = "std")]
-            strings_pool: HashMap::new(),
-            #[cfg(not(feature = "std"))]
             strings_pool: Vec::new(),
 
             _phantom: PhantomData,
         }
     }
 
-    /// Create a [`FlatBufferBuilder`] that is ready for writing with a custom [`Allocator`]
-    /// and preallocated internal vecs.
-    ///
-    /// # Arguments
-    ///
-    /// * `allocator` - A custom [`Allocator`] to use as the backing buffer.
-    /// * `field_locs_capacity` - Preallocated capacity for the field locations vec.
-    /// * `written_vtable_revpos_capacity` - Preallocated capacity for the written vtable reverse positions vec.
-    /// * `strings_pool_capacity` - Preallocated capacity for the shared strings pool vec.
-    pub fn new_in_with_internal_capacity(
-        allocator: A,
-        field_locs_capacity: usize,
-        written_vtable_revpos_capacity: usize,
-        strings_pool_capacity: usize,
-    ) -> Self {
-        let head = ReverseIndex::end();
-        FlatBufferBuilder {
-            allocator,
-            head,
-
-            field_locs: Vec::with_capacity(field_locs_capacity),
-            written_vtable_revpos: Vec::with_capacity(written_vtable_revpos_capacity),
-
-            nested: false,
-            finished: false,
-
-            min_align: 0,
-            force_defaults: false,
-            #[cfg(feature = "std")]
-            strings_pool: HashMap::with_capacity(strings_pool_capacity),
-            #[cfg(not(feature = "std"))]
-            strings_pool: Vec::with_capacity(strings_pool_capacity),
-
-            _phantom: PhantomData,
-        }
-    }
-
     /// Destroy the [`FlatBufferBuilder`], returning its [`Allocator`] and the index
     /// into it that represents the start of valid data.
     pub fn collapse_in(self) -> (A, usize) {
@@ -323,9 +223,7 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
     /// new object.
     pub fn reset(&mut self) {
         // memset only the part of the buffer that could be dirty:
-        self.allocator[self.head.range_to_end()]
+        self.allocator[self.head.range_to_end()].iter_mut().for_each(|x| *x = 0);
-            .iter_mut()
-            .for_each(|x| *x = 0);
 
         self.head = ReverseIndex::end();
         self.written_vtable_revpos.clear();
@@ -337,43 +235,22 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
         self.strings_pool.clear();
     }
 
-    /// Fallible version of [`push`](Self::push).
-    #[inline]
-    pub fn try_push<P: Push>(&mut self, x: P) -> Result<WIPOffset<P::Output>, A::Error> {
-        let sz = P::size();
-        self.align(sz, P::alignment())?;
-        self.make_space(sz)?;
-        {
-            let (dst, rest) = self.allocator[self.head.range_to_end()].split_at_mut(sz);
-            // Safety:
-            // Called make_space above
-            unsafe { x.push(dst, rest.len()) };
-        }
-        Ok(WIPOffset::new(self.used_space() as UOffsetT))
-    }
-
     /// Push a Push'able value onto the front of the in-progress data.
     ///
     /// This function uses traits to provide a unified API for writing
     /// scalars, tables, vectors, and WIPOffsets.
     #[inline]
     pub fn push<P: Push>(&mut self, x: P) -> WIPOffset<P::Output> {
-        self.try_push(x).expect("Flatbuffer allocation failure")
+        let sz = P::size();
-    }
+        self.align(sz, P::alignment());
-
+        self.make_space(sz);
-    /// Fallible version of [`push_slot`](Self::push_slot).
+        {
-    #[inline]
+            let (dst, rest) = self.allocator[self.head.range_to_end()].split_at_mut(sz);
-    pub fn try_push_slot<X: Push + PartialEq>(
+            // Safety:
-        &mut self,
+            // Called make_space above
-        slotoff: VOffsetT,
+            unsafe { x.push(dst, rest.len()) };
-        x: X,
-        default: X,
-    ) -> Result<(), A::Error> {
-        self.assert_nested("push_slot");
-        if x != default || self.force_defaults {
-            self.try_push_slot_always(slotoff, x)?;
         }
-        Ok(())
+        WIPOffset::new(self.used_space() as UOffsetT)
     }
 
     /// Push a Push'able value onto the front of the in-progress data, and
@@ -381,29 +258,19 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
     /// the default, then this is a no-op.
     #[inline]
     pub fn push_slot<X: Push + PartialEq>(&mut self, slotoff: VOffsetT, x: X, default: X) {
-        self.try_push_slot(slotoff, x, default)
+        self.assert_nested("push_slot");
-            .expect("Flatbuffer allocation failure")
+        if x != default || self.force_defaults {
-    }
+            self.push_slot_always(slotoff, x);
-
+        }
-    /// Fallible version of [`push_slot_always`](Self::push_slot_always).
-    #[inline]
-    pub fn try_push_slot_always<X: Push>(
-        &mut self,
-        slotoff: VOffsetT,
-        x: X,
-    ) -> Result<(), A::Error> {
-        self.assert_nested("push_slot_always");
-        let off = self.try_push(x)?;
-        self.track_field(slotoff, off.value());
-        Ok(())
     }
 
     /// Push a Push'able value onto the front of the in-progress data, and
     /// store a reference to it in the in-progress vtable.
     #[inline]
     pub fn push_slot_always<X: Push>(&mut self, slotoff: VOffsetT, x: X) {
-        self.try_push_slot_always(slotoff, x)
+        self.assert_nested("push_slot_always");
-            .expect("Flatbuffer allocation failure")
+        let off = self.push(x);
+        self.track_field(slotoff, off.value());
     }
 
     /// Retrieve the number of vtables that have been serialized into the
@@ -428,22 +295,6 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
         WIPOffset::new(self.used_space() as UOffsetT)
     }
 
-    /// Fallible version of [`end_table`](Self::end_table).
-    #[inline]
-    pub fn try_end_table(
-        &mut self,
-        off: WIPOffset<TableUnfinishedWIPOffset>,
-    ) -> Result<WIPOffset<TableFinishedWIPOffset>, A::Error> {
-        self.assert_nested("end_table");
-
-        let o = self.write_vtable(off)?;
-
-        self.nested = false;
-        self.field_locs.clear();
-
-        Ok(WIPOffset::new(o.value()))
-    }
-
     /// End a Table write.
     ///
     /// Asserts that the builder is in a nested state.
@@ -452,19 +303,14 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
         &mut self,
         off: WIPOffset<TableUnfinishedWIPOffset>,
     ) -> WIPOffset<TableFinishedWIPOffset> {
-        self.try_end_table(off)
+        self.assert_nested("end_table");
-            .expect("Flatbuffer allocation failure")
-    }
 
-    /// Fallible version of [`start_vector`](Self::start_vector).
+        let o = self.write_vtable(off);
-    #[inline]
+
-    pub fn try_start_vector<T: Push>(&mut self, num_items: usize) -> Result<(), A::Error> {
+        self.nested = false;
-        self.assert_not_nested(
+        self.field_locs.clear();
-            "start_vector can not be called when a table or vector is under construction",
+
-        );
+        WIPOffset::new(o.value())
-        self.align(num_items * T::size(), T::alignment().max_of(SIZE_UOFFSET))?;
-        self.nested = true;
-        Ok(())
     }
 
     /// Start a Vector write.
@@ -476,20 +322,11 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
     /// function will want to use `push` to add values.
     #[inline]
     pub fn start_vector<T: Push>(&mut self, num_items: usize) {
-        self.try_start_vector::<T>(num_items)
+        self.assert_not_nested(
-            .expect("Flatbuffer allocation failure")
+            "start_vector can not be called when a table or vector is under construction",
-    }
+        );
-
+        self.nested = true;
-    /// Fallible version of [`end_vector`](Self::end_vector).
+        self.align(num_items * T::size(), T::alignment().max_of(SIZE_UOFFSET));
-    #[inline]
-    pub fn try_end_vector<T: Push>(
-        &mut self,
-        num_elems: usize,
-    ) -> Result<WIPOffset<Vector<'fbb, T>>, A::Error> {
-        self.assert_nested("end_vector");
-        let o = self.try_push::<UOffsetT>(num_elems as UOffsetT)?;
-        self.nested = false;
-        Ok(WIPOffset::new(o.value()))
     }
 
     /// End a Vector write.
@@ -500,54 +337,14 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
     /// Asserts that the builder is in a nested state.
     #[inline]
     pub fn end_vector<T: Push>(&mut self, num_elems: usize) -> WIPOffset<Vector<'fbb, T>> {
-        self.try_end_vector::<T>(num_elems)
+        self.assert_nested("end_vector");
-            .expect("Flatbuffer allocation failure")
+        self.nested = false;
+        let o = self.push::<UOffsetT>(num_elems as UOffsetT);
+        WIPOffset::new(o.value())
     }
 
-    /// Fallible version of [`create_shared_string`](Self::create_shared_string).
-    ///
-    /// Uses a HashMap to track previously written strings, providing O(1)
-    /// amortized lookup and insertion.
-    #[cfg(feature = "std")]
-    #[inline]
-    pub fn try_create_shared_string<'a: 'b, 'b>(
-        &'a mut self,
-        s: &'b str,
-    ) -> Result<WIPOffset<&'fbb str>, A::Error> {
-        self.assert_not_nested(
-            "create_shared_string can not be called when a table or vector is under construction",
-        );
-
-        if let Some(&offset) = self.strings_pool.get(s) {
-            return Ok(offset);
-        }
-
-        let address = WIPOffset::new(self.try_create_byte_string(s.as_bytes())?.value());
-        self.strings_pool.insert(s.to_owned(), address);
-        Ok(address)
-    }
-
-    /// Create a utf8 string, and de-duplicate if already created.
-    ///
-    /// Uses a HashMap to track previously written strings, providing O(1)
-    /// amortized lookup and insertion.
-    #[cfg(feature = "std")]
     #[inline]
     pub fn create_shared_string<'a: 'b, 'b>(&'a mut self, s: &'b str) -> WIPOffset<&'fbb str> {
-        self.try_create_shared_string(s)
-            .expect("Flatbuffer allocation failure")
-    }
-
-    /// Fallible version of [`create_shared_string`](Self::create_shared_string).
-    ///
-    /// Uses a sorted Vec with binary search to track previously written
-    /// strings when in `no_std` mode.
-    #[cfg(not(feature = "std"))]
-    #[inline]
-    pub fn try_create_shared_string<'a: 'b, 'b>(
-        &'a mut self,
-        s: &'b str,
-    ) -> Result<WIPOffset<&'fbb str>, A::Error> {
         self.assert_not_nested(
             "create_shared_string can not be called when a table or vector is under construction",
         );
@@ -558,95 +355,68 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
 
         let found = self.strings_pool.binary_search_by(|offset| {
             let ptr = offset.value() as usize;
+            // Gets The pointer to the size of the string
             let str_memory = &buf[buf.len() - ptr..];
-            let size = u32::from_le_bytes([
+            // Gets the size of the written string from buffer
-                str_memory[0],
+            let size =
-                str_memory[1],
+                u32::from_le_bytes([str_memory[0], str_memory[1], str_memory[2], str_memory[3]])
-                str_memory[2],
+                    as usize;
-                str_memory[3],
+            // Size of the string size
-            ]) as usize;
+            let string_size: usize = 4;
-            let stored = &str_memory[4..4 + size];
+            // Fetches actual string bytes from index of string after string size
-            stored.cmp(s.as_bytes())
+            // to the size of string plus string size
+            let iter = str_memory[string_size..size + string_size].iter();
+            // Compares bytes of fetched string and current writable string
+            iter.cloned().cmp(s.bytes())
         });
 
         match found {
-            Ok(index) => Ok(self.strings_pool[index]),
+            Ok(index) => self.strings_pool[index],
             Err(index) => {
-                let address =
+                let address = WIPOffset::new(self.create_byte_string(s.as_bytes()).value());
-                    WIPOffset::new(self.try_create_byte_string(s.as_bytes())?.value());
                 self.strings_pool.insert(index, address);
-                Ok(address)
+                address
             }
         }
     }
 
-    /// Create a utf8 string, and de-duplicate if already created.
-    ///
-    /// Uses a sorted Vec with binary search to track previously written
-    /// strings when in `no_std` mode.
-    #[cfg(not(feature = "std"))]
-    #[inline]
-    pub fn create_shared_string<'a: 'b, 'b>(&'a mut self, s: &'b str) -> WIPOffset<&'fbb str> {
-        self.try_create_shared_string(s)
-            .expect("Flatbuffer allocation failure")
-    }
-
-    /// Fallible version of [`create_string`](Self::create_string).
-    #[inline]
-    pub fn try_create_string<'a: 'b, 'b>(
-        &'a mut self,
-        s: &'b str,
-    ) -> Result<WIPOffset<&'fbb str>, A::Error> {
-        self.assert_not_nested(
-            "create_string can not be called when a table or vector is under construction",
-        );
-        Ok(WIPOffset::new(
-            self.try_create_byte_string(s.as_bytes())?.value(),
-        ))
-    }
-
     /// Create a utf8 string.
     ///
     /// The wire format represents this as a zero-terminated byte vector.
     #[inline]
     pub fn create_string<'a: 'b, 'b>(&'a mut self, s: &'b str) -> WIPOffset<&'fbb str> {
-        self.try_create_string(s)
-            .expect("Flatbuffer allocation failure")
-    }
-
-    /// Fallible version of [`create_byte_string`](Self::create_byte_string).
-    #[inline]
-    pub fn try_create_byte_string(
-        &mut self,
-        data: &[u8],
-    ) -> Result<WIPOffset<&'fbb [u8]>, A::Error> {
         self.assert_not_nested(
-            "create_byte_string can not be called when a table or vector is under construction",
+            "create_string can not be called when a table or vector is under construction",
         );
-        self.align(data.len() + 1, PushAlignment::new(SIZE_UOFFSET))?;
+        WIPOffset::new(self.create_byte_string(s.as_bytes()).value())
-        self.try_push(0u8)?;
-        self.push_bytes_unprefixed(data)?;
-        self.try_push(data.len() as UOffsetT)?;
-        Ok(WIPOffset::new(self.used_space() as UOffsetT))
     }
 
     /// Create a zero-terminated byte vector.
     #[inline]
     pub fn create_byte_string(&mut self, data: &[u8]) -> WIPOffset<&'fbb [u8]> {
-        self.try_create_byte_string(data)
+        self.assert_not_nested(
-            .expect("Flatbuffer allocation failure")
+            "create_byte_string can not be called when a table or vector is under construction",
+        );
+        self.align(data.len() + 1, PushAlignment::new(SIZE_UOFFSET));
+        self.push(0u8);
+        self.push_bytes_unprefixed(data);
+        self.push(data.len() as UOffsetT);
+        WIPOffset::new(self.used_space() as UOffsetT)
     }
 
-    /// Fallible version of [`create_vector`](Self::create_vector).
+    /// Create a vector of Push-able objects.
+    ///
+    /// Speed-sensitive users may wish to reduce memory usage by creating the
+    /// vector manually: use `start_vector`, `push`, and `end_vector`.
     #[inline]
-    pub fn try_create_vector<'a: 'b, 'b, T: Push + 'b>(
+    pub fn create_vector<'a: 'b, 'b, T: Push + 'b>(
         &'a mut self,
         items: &'b [T],
-    ) -> Result<WIPOffset<Vector<'fbb, T::Output>>, A::Error> {
+    ) -> WIPOffset<Vector<'fbb, T::Output>> {
         let elem_size = T::size();
         let slice_size = items.len() * elem_size;
-        self.align(slice_size, T::alignment().max_of(SIZE_UOFFSET))?;
+        self.align(slice_size, T::alignment().max_of(SIZE_UOFFSET));
-        self.ensure_capacity(slice_size + UOffsetT::size())?;
+        self.ensure_capacity(slice_size + UOffsetT::size());
 
         self.head -= slice_size;
         let mut written_len = self.head.distance_to_end();
@@ -660,38 +430,7 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
             unsafe { item.push(out, written_len) };
         }
 
-        Ok(WIPOffset::new(
+        WIPOffset::new(self.push::<UOffsetT>(items.len() as UOffsetT).value())
-            self.try_push::<UOffsetT>(items.len() as UOffsetT)?.value(),
-        ))
-    }
-
-    /// Create a vector of Push-able objects.
-    ///
-    /// Speed-sensitive users may wish to reduce memory usage by creating the
-    /// vector manually: use `start_vector`, `push`, and `end_vector`.
-    #[inline]
-    pub fn create_vector<'a: 'b, 'b, T: Push + 'b>(
-        &'a mut self,
-        items: &'b [T],
-    ) -> WIPOffset<Vector<'fbb, T::Output>> {
-        self.try_create_vector(items)
-            .expect("Flatbuffer allocation failure")
-    }
-
-    /// Fallible version of [`create_vector_from_iter`](Self::create_vector_from_iter).
-    #[inline]
-    pub fn try_create_vector_from_iter<T: Push>(
-        &mut self,
-        items: impl ExactSizeIterator<Item = T> + DoubleEndedIterator,
-    ) -> Result<WIPOffset<Vector<'fbb, T::Output>>, A::Error> {
-        let elem_size = T::size();
-        self.align(items.len() * elem_size, T::alignment().max_of(SIZE_UOFFSET))?;
-        let mut actual = 0;
-        for item in items.rev() {
-            self.try_push(item)?;
-            actual += 1;
-        }
-        Ok(WIPOffset::new(self.try_push::<UOffsetT>(actual)?.value()))
     }
 
     /// Create a vector of Push-able objects.
@@ -703,8 +442,14 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
         &mut self,
         items: impl ExactSizeIterator<Item = T> + DoubleEndedIterator,
     ) -> WIPOffset<Vector<'fbb, T::Output>> {
-        self.try_create_vector_from_iter(items)
+        let elem_size = T::size();
-            .expect("Flatbuffer allocation failure")
+        self.align(items.len() * elem_size, T::alignment().max_of(SIZE_UOFFSET));
+        let mut actual = 0;
+        for item in items.rev() {
+            self.push(item);
+            actual += 1;
+        }
+        WIPOffset::new(self.push::<UOffsetT>(actual).value())
     }
 
     /// Set whether default values are stored.
@@ -767,34 +512,13 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
         assert!(o != 0, "missing required field {}", assert_msg_name);
     }
 
-    /// Fallible version of [`finish_size_prefixed`](Self::finish_size_prefixed).
-    #[inline]
-    pub fn try_finish_size_prefixed<T>(
-        &mut self,
-        root: WIPOffset<T>,
-        file_identifier: Option<&str>,
-    ) -> Result<(), A::Error> {
-        self.finish_with_opts(root, file_identifier, true)
-    }
-
     /// Finalize the FlatBuffer by: aligning it, pushing an optional file
     /// identifier on to it, pushing a size prefix on to it, and marking the
     /// internal state of the FlatBufferBuilder as `finished`. Afterwards,
     /// users can call `finished_data` to get the resulting data.
     #[inline]
     pub fn finish_size_prefixed<T>(&mut self, root: WIPOffset<T>, file_identifier: Option<&str>) {
-        self.try_finish_size_prefixed(root, file_identifier)
+        self.finish_with_opts(root, file_identifier, true);
-            .expect("Flatbuffer allocation failure")
-    }
-
-    /// Fallible version of [`finish`](Self::finish).
-    #[inline]
-    pub fn try_finish<T>(
-        &mut self,
-        root: WIPOffset<T>,
-        file_identifier: Option<&str>,
-    ) -> Result<(), A::Error> {
-        self.finish_with_opts(root, file_identifier, false)
     }
 
     /// Finalize the FlatBuffer by: aligning it, pushing an optional file
@@ -803,14 +527,7 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
     /// `finished_data` to get the resulting data.
     #[inline]
     pub fn finish<T>(&mut self, root: WIPOffset<T>, file_identifier: Option<&str>) {
-        self.try_finish(root, file_identifier)
+        self.finish_with_opts(root, file_identifier, false);
-            .expect("Flatbuffer allocation failure")
-    }
-
-    /// Fallible version of [`finish_minimal`](Self::finish_minimal).
-    #[inline]
-    pub fn try_finish_minimal<T>(&mut self, root: WIPOffset<T>) -> Result<(), A::Error> {
-        self.finish_with_opts(root, None, false)
     }
 
     /// Finalize the FlatBuffer by: aligning it and marking the internal state
@@ -818,8 +535,7 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
     /// `finished_data` to get the resulting data.
     #[inline]
     pub fn finish_minimal<T>(&mut self, root: WIPOffset<T>) {
-        self.try_finish_minimal(root)
+        self.finish_with_opts(root, None, false);
-            .expect("Flatbuffer allocation failure")
     }
 
     #[inline]
@@ -837,13 +553,13 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
     fn write_vtable(
         &mut self,
         table_tail_revloc: WIPOffset<TableUnfinishedWIPOffset>,
-    ) -> Result<WIPOffset<VTableWIPOffset>, A::Error> {
+    ) -> WIPOffset<VTableWIPOffset> {
         self.assert_nested("write_vtable");
 
         // Write the vtable offset, which is the start of any Table.
         // We fill its value later.
         let object_revloc_to_vtable: WIPOffset<VTableWIPOffset> =
-            WIPOffset::new(self.try_push::<UOffsetT>(0xF0F0_F0F0)?.value());
+            WIPOffset::new(self.push::<UOffsetT>(0xF0F0_F0F0).value());
 
         // Layout of the data this function will create when a new vtable is
         // needed.
@@ -886,7 +602,7 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
 
         // fill the WIP vtable with zeros:
         let vtable_byte_len = get_vtable_byte_len(&self.field_locs);
-        self.make_space(vtable_byte_len)?;
+        self.make_space(vtable_byte_len);
 
         // compute the length of the table (not vtable!) in bytes:
         let table_object_size = object_revloc_to_vtable.value() - table_tail_revloc.value();
@@ -911,15 +627,13 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
             }
         }
         let new_vt_bytes = &self.allocator[vt_start_pos.range_to(vt_end_pos)];
-        let found = self
+        let found = self.written_vtable_revpos.binary_search_by(|old_vtable_revpos: &UOffsetT| {
-            .written_vtable_revpos
+            let old_vtable_pos = self.allocator.len() - *old_vtable_revpos as usize;
-            .binary_search_by(|old_vtable_revpos: &UOffsetT| {
+            // Safety:
-                let old_vtable_pos = self.allocator.len() - *old_vtable_revpos as usize;
+            // Already written vtables are valid by construction
-                // Safety:
+            let old_vtable = unsafe { VTable::init(&self.allocator, old_vtable_pos) };
-                // Already written vtables are valid by construction
+            new_vt_bytes.cmp(old_vtable.as_bytes())
-                let old_vtable = unsafe { VTable::init(&self.allocator, old_vtable_pos) };
+        });
-                new_vt_bytes.cmp(old_vtable.as_bytes())
-            });
         let final_vtable_revpos = match found {
             Ok(i) => {
                 // The new vtable is a duplicate so clear it.
@@ -957,18 +671,17 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
 
         self.field_locs.clear();
 
-        Ok(object_revloc_to_vtable)
+        object_revloc_to_vtable
     }
 
     // Only call this when you know it is safe to double the size of the buffer.
     #[inline]
-    fn grow_allocator(&mut self) -> Result<(), A::Error> {
+    fn grow_allocator(&mut self) {
         let starting_active_size = self.used_space();
-        self.allocator.grow_downwards()?;
+        self.allocator.grow_downwards().expect("Flatbuffer allocation failure");
 
         let ending_active_size = self.used_space();
         debug_assert_eq!(starting_active_size, ending_active_size);
-        Ok(())
     }
 
     // with or without a size prefix changes how we load the data, so finish*
@@ -978,7 +691,7 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
         root: WIPOffset<T>,
         file_identifier: Option<&str>,
         size_prefixed: bool,
-    ) -> Result<(), A::Error> {
+    ) {
         self.assert_not_finished("buffer cannot be finished when it is already finished");
         self.assert_not_nested(
             "buffer cannot be finished when a table or vector is under construction",
@@ -991,40 +704,34 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
             // for the size prefix:
             let b = if size_prefixed { SIZE_UOFFSET } else { 0 };
             // for the file identifier (a string that is not zero-terminated):
-            let c = if file_identifier.is_some() {
+            let c = if file_identifier.is_some() { FILE_IDENTIFIER_LENGTH } else { 0 };
-                FILE_IDENTIFIER_LENGTH
-            } else {
-                0
-            };
             a + b + c
         };
 
         {
             let ma = PushAlignment::new(self.min_align);
-            self.align(to_align, ma)?;
+            self.align(to_align, ma);
         }
 
         if let Some(ident) = file_identifier {
             debug_assert_eq!(ident.len(), FILE_IDENTIFIER_LENGTH);
-            self.push_bytes_unprefixed(ident.as_bytes())?;
+            self.push_bytes_unprefixed(ident.as_bytes());
         }
 
-        self.try_push(root)?;
+        self.push(root);
 
         if size_prefixed {
             let sz = self.used_space() as UOffsetT;
-            self.try_push::<UOffsetT>(sz)?;
+            self.push::<UOffsetT>(sz);
         }
         self.finished = true;
-        Ok(())
     }
 
     #[inline]
-    fn align(&mut self, len: usize, alignment: PushAlignment) -> Result<(), A::Error> {
+    fn align(&mut self, len: usize, alignment: PushAlignment) {
         self.track_min_align(alignment.value());
         let s = self.used_space() as usize;
-        self.make_space(padding_bytes(s + len, alignment.value()))?;
+        self.make_space(padding_bytes(s + len, alignment.value()));
-        Ok(())
     }
 
     #[inline]
@@ -1033,34 +740,31 @@ impl<'fbb, A: Allocator> FlatBufferBuilder<'fbb, A> {
     }
 
     #[inline]
-    fn push_bytes_unprefixed(&mut self, x: &[u8]) -> Result<UOffsetT, A::Error> {
+    fn push_bytes_unprefixed(&mut self, x: &[u8]) -> UOffsetT {
-        let n = self.make_space(x.len())?;
+        let n = self.make_space(x.len());
         self.allocator[n.range_to(n + x.len())].copy_from_slice(x);
 
-        Ok(n.to_forward_index(&self.allocator) as UOffsetT)
+        n.to_forward_index(&self.allocator) as UOffsetT
     }
 
     #[inline]
-    fn make_space(&mut self, want: usize) -> Result<ReverseIndex, A::Error> {
+    fn make_space(&mut self, want: usize) -> ReverseIndex {
-        self.ensure_capacity(want)?;
+        self.ensure_capacity(want);
         self.head -= want;
-        Ok(self.head)
+        self.head
     }
 
     #[inline]
-    fn ensure_capacity(&mut self, want: usize) -> Result<usize, A::Error> {
+    fn ensure_capacity(&mut self, want: usize) -> usize {
         if self.unused_ready_space() >= want {
-            return Ok(want);
+            return want;
         }
-        assert!(
+        assert!(want <= FLATBUFFERS_MAX_BUFFER_SIZE, "cannot grow buffer beyond 2 gigabytes");
-            want <= FLATBUFFERS_MAX_BUFFER_SIZE,
-            "cannot grow buffer beyond 2 gigabytes"
-        );
 
         while self.unused_ready_space() < want {
-            self.grow_allocator()?;
+            self.grow_allocator();
         }
-        Ok(want)
+        want
     }
     #[inline]
     fn unused_ready_space(&self) -> usize {
@@ -1227,33 +931,6 @@ impl<T> IndexMut<ReverseIndexRange> for [T] {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use core::sync::atomic::{AtomicUsize, Ordering};
-    use std::alloc::{GlobalAlloc, Layout, System};
-
-    static ALLOC_COUNT: AtomicUsize = AtomicUsize::new(0);
-
-    struct CountingAllocator;
-
-    unsafe impl GlobalAlloc for CountingAllocator {
-        unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
-            ALLOC_COUNT.fetch_add(1, Ordering::Relaxed);
-            unsafe { System.alloc(layout) }
-        }
-        unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
-            unsafe { System.dealloc(ptr, layout) }
-        }
-    }
-
-    #[global_allocator]
-    static GLOBAL: CountingAllocator = CountingAllocator;
-
-    fn reset_alloc_count() {
-        ALLOC_COUNT.store(0, Ordering::Relaxed);
-    }
-
-    fn alloc_count() -> usize {
-        ALLOC_COUNT.load(Ordering::Relaxed)
-    }
 
     #[test]
     fn reverse_index_test() {
@@ -1263,150 +940,4 @@ mod tests {
         assert_eq!(&buf[idx.range_to(idx + 1)], &[4]);
         assert_eq!(idx.to_forward_index(&buf), 4);
     }
-
-    #[test]
-    fn with_internal_capacity_preallocates_vecs() {
-        let mut builder = FlatBufferBuilder::with_internal_capacity(64, 8, 16, 32);
-
-        assert!(builder.allocator.len() >= 64);
-        assert!(builder.field_locs.capacity() >= 8);
-        assert!(builder.written_vtable_revpos.capacity() >= 16);
-        assert!(builder.strings_pool.capacity() >= 32);
-
-        assert!(builder.field_locs.is_empty());
-        assert!(builder.written_vtable_revpos.is_empty());
-        assert!(builder.strings_pool.is_empty());
-
-        // Reset the allocation counter after builder construction
-        reset_alloc_count();
-
-        // Add a shared string and verify it lands in the pool
-        let s1 = builder.create_shared_string("hello");
-        assert_eq!(builder.strings_pool.len(), 1);
-
-        // Adding the same string again should reuse the pooled entry
-        let s2 = builder.create_shared_string("hello");
-        assert_eq!(builder.strings_pool.len(), 1);
-        assert_eq!(s1.value(), s2.value());
-
-        // A different string should add a new entry
-        let _s3 = builder.create_shared_string("world");
-        assert_eq!(builder.strings_pool.len(), 2);
-
-        // With sufficient preallocated capacity, no additional allocations
-        // should have occurred for the internal vecs during the operations above
-        let allocs = alloc_count();
-        assert_eq!(
-            allocs, 0,
-            "expected 0 allocations after builder construction, got {}",
-            allocs
-        );
-    }
-
-    /// A test allocator that fails after a specified number of grow operations.
-    struct FailingAllocator {
-        inner: DefaultAllocator,
-        grows_remaining: usize,
-    }
-
-    #[derive(Debug, Clone, PartialEq, Eq)]
-    struct AllocationError;
-
-    impl core::fmt::Display for AllocationError {
-        fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
-            write!(f, "allocation failed")
-        }
-    }
-
-    impl FailingAllocator {
-        fn new(initial_size: usize, max_grows: usize) -> Self {
-            Self {
-                inner: DefaultAllocator::from_vec(vec![0u8; initial_size]),
-                grows_remaining: max_grows,
-            }
-        }
-    }
-
-    impl Deref for FailingAllocator {
-        type Target = [u8];
-        fn deref(&self) -> &Self::Target {
-            &self.inner
-        }
-    }
-
-    impl DerefMut for FailingAllocator {
-        fn deref_mut(&mut self) -> &mut Self::Target {
-            &mut self.inner
-        }
-    }
-
-    unsafe impl Allocator for FailingAllocator {
-        type Error = AllocationError;
-
-        fn grow_downwards(&mut self) -> Result<(), Self::Error> {
-            if self.grows_remaining == 0 {
-                return Err(AllocationError);
-            }
-            self.grows_remaining -= 1;
-            // DefaultAllocator returns Infallible, so unwrap is safe
-            self.inner.grow_downwards().unwrap();
-            Ok(())
-        }
-
-        fn len(&self) -> usize {
-            self.inner.len()
-        }
-    }
-
-    #[test]
-    fn try_push_propagates_allocation_error() {
-        let allocator = FailingAllocator::new(1, 0);
-        let mut builder = FlatBufferBuilder::new_in(allocator);
-
-        let result = builder.try_push::<u64>(0x1234567890ABCDEF);
-        assert!(result.is_err());
-    }
-
-    #[test]
-    fn try_create_string_propagates_allocation_error() {
-        let allocator = FailingAllocator::new(1, 0);
-        let mut builder = FlatBufferBuilder::new_in(allocator);
-
-        let result = builder.try_create_string("hello world");
-        assert!(result.is_err());
-    }
-
-    #[test]
-    fn try_create_vector_propagates_allocation_error() {
-        let allocator = FailingAllocator::new(1, 0);
-        let mut builder = FlatBufferBuilder::new_in(allocator);
-
-        let result = builder.try_create_vector(&[1u32, 2, 3, 4, 5]);
-        assert!(result.is_err());
-    }
-
-    #[test]
-    fn try_methods_succeed_with_sufficient_capacity() {
-        let allocator = FailingAllocator::new(1, 10);
-        let mut builder = FlatBufferBuilder::new_in(allocator);
-
-        let result = builder.try_create_string("hello");
-        assert!(result.is_ok());
-
-        let result = builder.try_create_vector(&[1u32, 2, 3]);
-        assert!(result.is_ok());
-    }
-
-    #[test]
-    fn try_finish_propagates_allocation_error() {
-        let allocator = FailingAllocator::new(1, 3);
-        let mut builder = FlatBufferBuilder::new_in(allocator);
-
-        let start = builder.start_table();
-        let table = builder
-            .try_end_table(start)
-            .expect("end_table should succeed with 3 grows");
-        let result = builder.try_finish_minimal(table);
-        assert!(result.is_err(), "finish should fail after grows exhausted");
-    }
 }

rust/flatbuffers/src/vector.rs

@@ -107,20 +107,6 @@ impl<'a, T: Follow<'a> + 'a> Vector<'a, T> {
         key: K,
         f: fn(&<T as Follow<'a>>::Inner, &K) -> Ordering,
     ) -> Option<T::Inner> {
-        self.lookup_index_by_key(key, f).map(|idx| self.get(idx))
-    }
-
-    /// Binary search by key, returning the index of the matching element.
-    ///
-    /// This is similar to `lookup_by_key`, but returns the index of the found
-    /// element rather than the element itself. This is useful when you need
-    /// to reference elements by their position in the vector.
-    #[inline(always)]
-    pub fn lookup_index_by_key<K: Ord>(
-        &self,
-        key: K,
-        f: fn(&<T as Follow<'a>>::Inner, &K) -> Ordering,
-    ) -> Option<usize> {
         if self.is_empty() {
             return None;
         }
@@ -132,7 +118,7 @@ impl<'a, T: Follow<'a> + 'a> Vector<'a, T> {
             let mid = (left + right) / 2;
             let value = self.get(mid);
             match f(&value, &key) {
-                Ordering::Equal => return Some(mid),
+                Ordering::Equal => return Some(value),
                 Ordering::Less => left = mid + 1,
                 Ordering::Greater => {
                     if mid == 0 {

rust/flatbuffers/src/verifier.rs

@@ -492,8 +492,8 @@ impl<'ver, 'opts, 'buf> TableVerifier<'ver, 'opts, 'buf> {
                 Ok(self)
             }
             _ => InvalidFlatbuffer::new_inconsistent_union(
-                val_field_name.into(),
                 key_field_name.into(),
+                val_field_name.into(),
             ),
         }
     }

rust/reflection/src/reflection_verifier.rs

@@ -397,8 +397,8 @@ fn verify_union<'a, 'b, 'c>(
         }
     } else {
         return InvalidFlatbuffer::new_inconsistent_union(
-            field.name().to_string(),
             format!("{}_type", field.name()),
+            field.name().to_string(),
         )?;
     }
 

samples/monster_generated.h

@@ -643,7 +643,7 @@ inline ::flatbuffers::Offset<Monster> Monster::Pack(::flatbuffers::FlatBufferBui
   auto _name = _o->name.empty() ? 0 : _fbb.CreateString(_o->name);
   auto _inventory = _o->inventory.size() ? _fbb.CreateVector(_o->inventory) : 0;
   auto _color = _o->color;
-  auto _weapons = _o->weapons.size() ? _fbb.CreateVector<::flatbuffers::Offset<MyGame::Sample::Weapon>> (_o->weapons.size(), [](size_t i, _VectorArgs *__va) { return MyGame::Sample::CreateWeapon(*__va->__fbb, __va->__o->weapons[i].get(), __va->__rehasher); }, &_va ) : 0;
+  auto _weapons = _o->weapons.size() ? _fbb.CreateVector<::flatbuffers::Offset<MyGame::Sample::Weapon>> (_o->weapons.size(), [](size_t i, _VectorArgs *__va) { return CreateWeapon(*__va->__fbb, __va->__o->weapons[i].get(), __va->__rehasher); }, &_va ) : 0;
   auto _equipped_type = _o->equipped.type;
   auto _equipped = _o->equipped.Pack(_fbb);
   auto _path = _o->path.size() ? _fbb.CreateVectorOfStructs(_o->path) : 0;

samples/monster_generated.swift

@@ -113,12 +113,12 @@ public struct MyGame_Sample_Vec3: NativeStruct, FlatbuffersVectorInitializable,
 }
 
 extension MyGame_Sample_Vec3: Encodable {
+
   enum CodingKeys: String, CodingKey {
     case x = "x"
     case y = "y"
     case z = "z"
   }
-
   public func encode(to encoder: Encoder) throws {
     var container = encoder.container(keyedBy: CodingKeys.self)
     if x != 0.0 {
@@ -161,7 +161,7 @@ public struct MyGame_Sample_Vec3_Mutable: FlatBufferStruct, FlatbuffersVectorIni
   }
 }
 
-public struct MyGame_Sample_Monster: FlatBufferVerifiableTable, FlatbuffersVectorInitializable, ObjectAPIPacker {
+public struct MyGame_Sample_Monster: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_12_19() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -170,49 +170,51 @@ public struct MyGame_Sample_Monster: FlatBufferVerifiableTable, FlatbuffersVecto
   private init(_ t: Table) { _accessor = t }
   public init(_ bb: ByteBuffer, o: Int32) { _accessor = Table(bb: bb, position: o) }
 
-  private struct VT {
+  private enum VTOFFSET: VOffset {
-    static let pos: VOffset = 4
+    case pos = 4
-    static let mana: VOffset = 6
+    case mana = 6
-    static let hp: VOffset = 8
+    case hp = 8
-    static let name: VOffset = 10
+    case name = 10
-    static let inventory: VOffset = 14
+    case inventory = 14
-    static let color: VOffset = 16
+    case color = 16
-    static let weapons: VOffset = 18
+    case weapons = 18
-    static let equippedType: VOffset = 20
+    case equippedType = 20
-    static let equipped: VOffset = 22
+    case equipped = 22
-    static let path: VOffset = 24
+    case path = 24
+    var v: Int32 { Int32(self.rawValue) }
+    var p: VOffset { self.rawValue }
   }
 
-  public var pos: MyGame_Sample_Vec3? { let o = _accessor.offset(VT.pos); return o == 0 ? nil : _accessor.readBuffer(of: MyGame_Sample_Vec3.self, at: o) }
+  public var pos: MyGame_Sample_Vec3? { let o = _accessor.offset(VTOFFSET.pos.v); return o == 0 ? nil : _accessor.readBuffer(of: MyGame_Sample_Vec3.self, at: o) }
-  public var mutablePos: MyGame_Sample_Vec3_Mutable? { let o = _accessor.offset(VT.pos); return o == 0 ? nil : MyGame_Sample_Vec3_Mutable(_accessor.bb, o: o + _accessor.position) }
+  public var mutablePos: MyGame_Sample_Vec3_Mutable? { let o = _accessor.offset(VTOFFSET.pos.v); return o == 0 ? nil : MyGame_Sample_Vec3_Mutable(_accessor.bb, o: o + _accessor.position) }
-  public var mana: Int16 { let o = _accessor.offset(VT.mana); return o == 0 ? 150 : _accessor.readBuffer(of: Int16.self, at: o) }
+  public var mana: Int16 { let o = _accessor.offset(VTOFFSET.mana.v); return o == 0 ? 150 : _accessor.readBuffer(of: Int16.self, at: o) }
-  @discardableResult public func mutate(mana: Int16) -> Bool {let o = _accessor.offset(VT.mana);  return _accessor.mutate(mana, index: o) }
+  @discardableResult public func mutate(mana: Int16) -> Bool {let o = _accessor.offset(VTOFFSET.mana.v);  return _accessor.mutate(mana, index: o) }
-  public var hp: Int16 { let o = _accessor.offset(VT.hp); return o == 0 ? 100 : _accessor.readBuffer(of: Int16.self, at: o) }
+  public var hp: Int16 { let o = _accessor.offset(VTOFFSET.hp.v); return o == 0 ? 100 : _accessor.readBuffer(of: Int16.self, at: o) }
-  @discardableResult public func mutate(hp: Int16) -> Bool {let o = _accessor.offset(VT.hp);  return _accessor.mutate(hp, index: o) }
+  @discardableResult public func mutate(hp: Int16) -> Bool {let o = _accessor.offset(VTOFFSET.hp.v);  return _accessor.mutate(hp, index: o) }
-  public var name: String? { let o = _accessor.offset(VT.name); return o == 0 ? nil : _accessor.string(at: o) }
+  public var name: String? { let o = _accessor.offset(VTOFFSET.name.v); return o == 0 ? nil : _accessor.string(at: o) }
-  public var nameSegmentArray: [UInt8]? { return _accessor.getVector(at: VT.name) }
+  public var nameSegmentArray: [UInt8]? { return _accessor.getVector(at: VTOFFSET.name.v) }
-  public var inventory: FlatbufferVector<UInt8> { return _accessor.vector(at: VT.inventory, byteSize: 1) }
+  public var inventory: FlatbufferVector<UInt8> { return _accessor.vector(at: VTOFFSET.inventory.v, byteSize: 1) }
-  public func mutate(inventory: UInt8, at index: Int32) -> Bool { let o = _accessor.offset(VT.inventory); return _accessor.directMutate(inventory, index: _accessor.vector(at: o) + index * 1) }
+  public func mutate(inventory: UInt8, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.inventory.v); return _accessor.directMutate(inventory, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToInventory<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VT.inventory, body: body) }
+  public func withUnsafePointerToInventory<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.inventory.v, body: body) }
-  public var color: MyGame_Sample_Color { let o = _accessor.offset(VT.color); return o == 0 ? .blue : MyGame_Sample_Color(rawValue: _accessor.readBuffer(of: Int8.self, at: o)) ?? .blue }
+  public var color: MyGame_Sample_Color { let o = _accessor.offset(VTOFFSET.color.v); return o == 0 ? .blue : MyGame_Sample_Color(rawValue: _accessor.readBuffer(of: Int8.self, at: o)) ?? .blue }
-  @discardableResult public func mutate(color: MyGame_Sample_Color) -> Bool {let o = _accessor.offset(VT.color);  return _accessor.mutate(color.rawValue, index: o) }
+  @discardableResult public func mutate(color: MyGame_Sample_Color) -> Bool {let o = _accessor.offset(VTOFFSET.color.v);  return _accessor.mutate(color.rawValue, index: o) }
-  public var weapons: FlatbufferVector<MyGame_Sample_Weapon> { return _accessor.vector(at: VT.weapons, byteSize: 4) }
+  public var weapons: FlatbufferVector<MyGame_Sample_Weapon> { return _accessor.vector(at: VTOFFSET.weapons.v, byteSize: 4) }
-  public var equippedType: MyGame_Sample_Equipment { let o = _accessor.offset(VT.equippedType); return o == 0 ? .none_ : MyGame_Sample_Equipment(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .none_ }
+  public var equippedType: MyGame_Sample_Equipment { let o = _accessor.offset(VTOFFSET.equippedType.v); return o == 0 ? .none_ : MyGame_Sample_Equipment(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .none_ }
-  public func equipped<T: FlatbuffersInitializable>(type: T.Type) -> T? { let o = _accessor.offset(VT.equipped); return o == 0 ? nil : _accessor.union(o) }
+  public func equipped<T: FlatbuffersInitializable>(type: T.Type) -> T? { let o = _accessor.offset(VTOFFSET.equipped.v); return o == 0 ? nil : _accessor.union(o) }
-  public var path: FlatbufferVector<MyGame_Sample_Vec3> { return _accessor.vector(at: VT.path, byteSize: 12) }
+  public var path: FlatbufferVector<MyGame_Sample_Vec3> { return _accessor.vector(at: VTOFFSET.path.v, byteSize: 12) }
-  public var mutablePath: FlatbufferVector<MyGame_Sample_Vec3_Mutable> { return _accessor.vector(at: VT.path, byteSize: 12) }
+  public var mutablePath: FlatbufferVector<MyGame_Sample_Vec3_Mutable> { return _accessor.vector(at: VTOFFSET.path.v, byteSize: 12) }
-  public func withUnsafePointerToPath<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VT.path, body: body) }
+  public func withUnsafePointerToPath<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.path.v, body: body) }
   public static func startMonster(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 11) }
-  public static func add(pos: MyGame_Sample_Vec3?, _ fbb: inout FlatBufferBuilder) { guard let pos = pos else { return }; fbb.create(struct: pos, position: VT.pos) }
+  public static func add(pos: MyGame_Sample_Vec3?, _ fbb: inout FlatBufferBuilder) { guard let pos = pos else { return }; fbb.create(struct: pos, position: VTOFFSET.pos.p) }
-  public static func add(mana: Int16, _ fbb: inout FlatBufferBuilder) { fbb.add(element: mana, def: 150, at: VT.mana) }
+  public static func add(mana: Int16, _ fbb: inout FlatBufferBuilder) { fbb.add(element: mana, def: 150, at: VTOFFSET.mana.p) }
-  public static func add(hp: Int16, _ fbb: inout FlatBufferBuilder) { fbb.add(element: hp, def: 100, at: VT.hp) }
+  public static func add(hp: Int16, _ fbb: inout FlatBufferBuilder) { fbb.add(element: hp, def: 100, at: VTOFFSET.hp.p) }
-  public static func add(name: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: name, at: VT.name) }
+  public static func add(name: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: name, at: VTOFFSET.name.p) }
-  public static func addVectorOf(inventory: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: inventory, at: VT.inventory) }
+  public static func addVectorOf(inventory: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: inventory, at: VTOFFSET.inventory.p) }
-  public static func add(color: MyGame_Sample_Color, _ fbb: inout FlatBufferBuilder) { fbb.add(element: color.rawValue, def: 2, at: VT.color) }
+  public static func add(color: MyGame_Sample_Color, _ fbb: inout FlatBufferBuilder) { fbb.add(element: color.rawValue, def: 2, at: VTOFFSET.color.p) }
-  public static func addVectorOf(weapons: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: weapons, at: VT.weapons) }
+  public static func addVectorOf(weapons: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: weapons, at: VTOFFSET.weapons.p) }
-  public static func add(equippedType: MyGame_Sample_Equipment, _ fbb: inout FlatBufferBuilder) { fbb.add(element: equippedType.rawValue, def: 0, at: VT.equippedType) }
+  public static func add(equippedType: MyGame_Sample_Equipment, _ fbb: inout FlatBufferBuilder) { fbb.add(element: equippedType.rawValue, def: 0, at: VTOFFSET.equippedType.p) }
-  public static func add(equipped: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: equipped, at: VT.equipped) }
+  public static func add(equipped: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: equipped, at: VTOFFSET.equipped.p) }
-  public static func addVectorOf(path: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: path, at: VT.path) }
+  public static func addVectorOf(path: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: path, at: VTOFFSET.path.p) }
   public static func startVectorOfPath(_ size: Int, in builder: inout FlatBufferBuilder) {
     builder.startVector(size * MemoryLayout<MyGame_Sample_Vec3>.size, elementSize: MemoryLayout<MyGame_Sample_Vec3>.alignment)
   }
@@ -291,14 +293,14 @@ public struct MyGame_Sample_Monster: FlatBufferVerifiableTable, FlatbuffersVecto
 
   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: VT.pos, fieldName: "pos", required: false, type: MyGame_Sample_Vec3.self)
+    try _v.visit(field: VTOFFSET.pos.p, fieldName: "pos", required: false, type: MyGame_Sample_Vec3.self)
-    try _v.visit(field: VT.mana, fieldName: "mana", required: false, type: Int16.self)
+    try _v.visit(field: VTOFFSET.mana.p, fieldName: "mana", required: false, type: Int16.self)
-    try _v.visit(field: VT.hp, fieldName: "hp", required: false, type: Int16.self)
+    try _v.visit(field: VTOFFSET.hp.p, fieldName: "hp", required: false, type: Int16.self)
-    try _v.visit(field: VT.name, fieldName: "name", required: false, type: ForwardOffset<String>.self)
+    try _v.visit(field: VTOFFSET.name.p, fieldName: "name", required: false, type: ForwardOffset<String>.self)
-    try _v.visit(field: VT.inventory, fieldName: "inventory", required: false, type: ForwardOffset<Vector<UInt8, UInt8>>.self)
+    try _v.visit(field: VTOFFSET.inventory.p, fieldName: "inventory", required: false, type: ForwardOffset<Vector<UInt8, UInt8>>.self)
-    try _v.visit(field: VT.color, fieldName: "color", required: false, type: MyGame_Sample_Color.self)
+    try _v.visit(field: VTOFFSET.color.p, fieldName: "color", required: false, type: MyGame_Sample_Color.self)
-    try _v.visit(field: VT.weapons, fieldName: "weapons", required: false, type: ForwardOffset<Vector<ForwardOffset<MyGame_Sample_Weapon>, MyGame_Sample_Weapon>>.self)
+    try _v.visit(field: VTOFFSET.weapons.p, fieldName: "weapons", required: false, type: ForwardOffset<Vector<ForwardOffset<MyGame_Sample_Weapon>, MyGame_Sample_Weapon>>.self)
-    try _v.visit(unionKey: VT.equippedType, unionField: VT.equipped, unionKeyName: "equippedType", fieldName: "equipped", required: false, completion: { (verifier, key: MyGame_Sample_Equipment, pos) in
+    try _v.visit(unionKey: VTOFFSET.equippedType.p, unionField: VTOFFSET.equipped.p, unionKeyName: "equippedType", fieldName: "equipped", required: false, completion: { (verifier, key: MyGame_Sample_Equipment, pos) in
       switch key {
       case .none_:
         break // NOTE - SWIFT doesnt support none
@@ -306,12 +308,13 @@ public struct MyGame_Sample_Monster: FlatBufferVerifiableTable, FlatbuffersVecto
         try ForwardOffset<MyGame_Sample_Weapon>.verify(&verifier, at: pos, of: MyGame_Sample_Weapon.self)
       }
     })
-    try _v.visit(field: VT.path, fieldName: "path", required: false, type: ForwardOffset<Vector<MyGame_Sample_Vec3, MyGame_Sample_Vec3>>.self)
+    try _v.visit(field: VTOFFSET.path.p, fieldName: "path", required: false, type: ForwardOffset<Vector<MyGame_Sample_Vec3, MyGame_Sample_Vec3>>.self)
     _v.finish()
   }
 }
 
 extension MyGame_Sample_Monster: Encodable {
+
   enum CodingKeys: String, CodingKey {
     case pos = "pos"
     case mana = "mana"
@@ -324,7 +327,6 @@ extension MyGame_Sample_Monster: Encodable {
     case equipped = "equipped"
     case path = "path"
   }
-
   public func encode(to encoder: Encoder) throws {
     var container = encoder.container(keyedBy: CodingKeys.self)
     try container.encodeIfPresent(pos, forKey: .pos)
@@ -400,7 +402,7 @@ public class MyGame_Sample_MonsterT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: MyGame_Sample_Monster.self) }
 
 }
-public struct MyGame_Sample_Weapon: FlatBufferVerifiableTable, FlatbuffersVectorInitializable, ObjectAPIPacker {
+public struct MyGame_Sample_Weapon: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_12_19() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -409,18 +411,20 @@ public struct MyGame_Sample_Weapon: FlatBufferVerifiableTable, FlatbuffersVector
   private init(_ t: Table) { _accessor = t }
   public init(_ bb: ByteBuffer, o: Int32) { _accessor = Table(bb: bb, position: o) }
 
-  private struct VT {
+  private enum VTOFFSET: VOffset {
-    static let name: VOffset = 4
+    case name = 4
-    static let damage: VOffset = 6
+    case damage = 6
+    var v: Int32 { Int32(self.rawValue) }
+    var p: VOffset { self.rawValue }
   }
 
-  public var name: String? { let o = _accessor.offset(VT.name); return o == 0 ? nil : _accessor.string(at: o) }
+  public var name: String? { let o = _accessor.offset(VTOFFSET.name.v); return o == 0 ? nil : _accessor.string(at: o) }
-  public var nameSegmentArray: [UInt8]? { return _accessor.getVector(at: VT.name) }
+  public var nameSegmentArray: [UInt8]? { return _accessor.getVector(at: VTOFFSET.name.v) }
-  public var damage: Int16 { let o = _accessor.offset(VT.damage); return o == 0 ? 0 : _accessor.readBuffer(of: Int16.self, at: o) }
+  public var damage: Int16 { let o = _accessor.offset(VTOFFSET.damage.v); return o == 0 ? 0 : _accessor.readBuffer(of: Int16.self, at: o) }
-  @discardableResult public func mutate(damage: Int16) -> Bool {let o = _accessor.offset(VT.damage);  return _accessor.mutate(damage, index: o) }
+  @discardableResult public func mutate(damage: Int16) -> Bool {let o = _accessor.offset(VTOFFSET.damage.v);  return _accessor.mutate(damage, index: o) }
   public static func startWeapon(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 2) }
-  public static func add(name: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: name, at: VT.name) }
+  public static func add(name: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: name, at: VTOFFSET.name.p) }
-  public static func add(damage: Int16, _ fbb: inout FlatBufferBuilder) { fbb.add(element: damage, def: 0, at: VT.damage) }
+  public static func add(damage: Int16, _ fbb: inout FlatBufferBuilder) { fbb.add(element: damage, def: 0, at: VTOFFSET.damage.p) }
   public static func endWeapon(_ fbb: inout FlatBufferBuilder, start: UOffset) -> Offset { let end = Offset(offset: fbb.endTable(at: start)); return end }
   public static func createWeapon(
     _ fbb: inout FlatBufferBuilder,
@@ -457,18 +461,18 @@ public struct MyGame_Sample_Weapon: FlatBufferVerifiableTable, FlatbuffersVector
 
   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: VT.name, fieldName: "name", required: false, type: ForwardOffset<String>.self)
+    try _v.visit(field: VTOFFSET.name.p, fieldName: "name", required: false, type: ForwardOffset<String>.self)
-    try _v.visit(field: VT.damage, fieldName: "damage", required: false, type: Int16.self)
+    try _v.visit(field: VTOFFSET.damage.p, fieldName: "damage", required: false, type: Int16.self)
     _v.finish()
   }
 }
 
 extension MyGame_Sample_Weapon: Encodable {
+
   enum CodingKeys: String, CodingKey {
     case name = "name"
     case damage = "damage"
   }
-
   public func encode(to encoder: Encoder) throws {
     var container = encoder.container(keyedBy: CodingKeys.self)
     try container.encodeIfPresent(name, forKey: .name)

samples/rust_generated/mod.rs

@@ -1,18 +1,18 @@
 // Automatically generated by the Flatbuffers compiler. Do not modify.
 // @generated
 pub mod my_game {
+  use super::*;
+  pub mod sample {
     use super::*;
-    pub mod sample {
+    mod color_generated;
-        use super::*;
+    pub use self::color_generated::*;
-        mod color_generated;
+    mod equipment_generated;
-        pub use self::color_generated::*;
+    pub use self::equipment_generated::*;
-        mod equipment_generated;
+    mod vec_3_generated;
-        pub use self::equipment_generated::*;
+    pub use self::vec_3_generated::*;
-        mod vec_3_generated;
+    mod monster_generated;
-        pub use self::vec_3_generated::*;
+    pub use self::monster_generated::*;
-        mod monster_generated;
+    mod weapon_generated;
-        pub use self::monster_generated::*;
+    pub use self::weapon_generated::*;
-        mod weapon_generated;
+  } // sample
-        pub use self::weapon_generated::*;
-    } // sample
 } // my_game

samples/rust_generated/my_game/sample/color_generated.rs

@@ -2,73 +2,64 @@
 // @generated
 extern crate alloc;
 use super::*;
-
 #[deprecated(since = "2.0.0", note = "Use associated constants instead. This will no longer be generated in 2021.")]
 pub const ENUM_MIN_COLOR: i8 = 0;
-
 #[deprecated(since = "2.0.0", note = "Use associated constants instead. This will no longer be generated in 2021.")]
 pub const ENUM_MAX_COLOR: i8 = 2;
-
 #[deprecated(since = "2.0.0", note = "Use associated constants instead. This will no longer be generated in 2021.")]
 #[allow(non_camel_case_types)]
 pub const ENUM_VALUES_COLOR: [Color; 3] = [
-    Color::Red,
+  Color::Red,
-    Color::Green,
+  Color::Green,
-    Color::Blue,
+  Color::Blue,
 ];
 
 #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
 #[repr(transparent)]
 pub struct Color(pub i8);
-
 #[allow(non_upper_case_globals)]
 impl Color {
-    pub const Red: Self = Self(0);
+  pub const Red: Self = Self(0);
-    pub const Green: Self = Self(1);
+  pub const Green: Self = Self(1);
-    pub const Blue: Self = Self(2);
+  pub const Blue: Self = Self(2);
 
-    pub const ENUM_MIN: i8 = 0;
+  pub const ENUM_MIN: i8 = 0;
-    pub const ENUM_MAX: i8 = 2;
+  pub const ENUM_MAX: i8 = 2;
-    pub const ENUM_VALUES: &'static [Self] = &[
+  pub const ENUM_VALUES: &'static [Self] = &[
-        Self::Red,
+    Self::Red,
-        Self::Green,
+    Self::Green,
-        Self::Blue,
+    Self::Blue,
-    ];
+  ];
-
+  /// Returns the variant's name or "" if unknown.
-    /// Returns the variant's name or "" if unknown.
+  pub fn variant_name(self) -> Option<&'static str> {
-    pub fn variant_name(self) -> Option<&'static str> {
+    match self {
-        match self {
+      Self::Red => Some("Red"),
-            Self::Red => Some("Red"),
+      Self::Green => Some("Green"),
-            Self::Green => Some("Green"),
+      Self::Blue => Some("Blue"),
-            Self::Blue => Some("Blue"),
+      _ => None,
-            _ => None,
-        }
     }
+  }
 }
-
 impl ::core::fmt::Debug for Color {
-    fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
+  fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
-        if let Some(name) = self.variant_name() {
+    if let Some(name) = self.variant_name() {
-            f.write_str(name)
+      f.write_str(name)
-        } else {
+    } else {
-            f.write_fmt(format_args!("<UNKNOWN {:?}>", self.0))
+      f.write_fmt(format_args!("<UNKNOWN {:?}>", self.0))
-        }
     }
+  }
 }
-
 impl<'a> ::flatbuffers::Follow<'a> for Color {
-    type Inner = Self;
+  type Inner = Self;
-
+  #[inline]
-    #[inline]
+  unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-    unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
+    let b = unsafe { ::flatbuffers::read_scalar_at::<i8>(buf, loc) };
-        let b = unsafe { ::flatbuffers::read_scalar_at::<i8>(buf, loc) };
+    Self(b)
-        Self(b)
+  }
-    }
 }
 
 impl ::flatbuffers::Push for Color {
     type Output = Color;
-
     #[inline]
     unsafe fn push(&self, dst: &mut [u8], _written_len: usize) {
         unsafe { ::flatbuffers::emplace_scalar::<i8>(dst, self.0) };
@@ -76,28 +67,26 @@ impl ::flatbuffers::Push for Color {
 }
 
 impl ::flatbuffers::EndianScalar for Color {
-    type Scalar = i8;
+  type Scalar = i8;
-
+  #[inline]
-    #[inline]
+  fn to_little_endian(self) -> i8 {
-    fn to_little_endian(self) -> i8 {
+    self.0.to_le()
-        self.0.to_le()
+  }
-    }
+  #[inline]
-
+  #[allow(clippy::wrong_self_convention)]
-    #[inline]
+  fn from_little_endian(v: i8) -> Self {
-    #[allow(clippy::wrong_self_convention)]
+    let b = i8::from_le(v);
-    fn from_little_endian(v: i8) -> Self {
+    Self(b)
-        let b = i8::from_le(v);
+  }
-        Self(b)
-    }
 }
 
 impl<'a> ::flatbuffers::Verifiable for Color {
-    #[inline]
+  #[inline]
-    fn run_verifier(
+  fn run_verifier(
-        v: &mut ::flatbuffers::Verifier, pos: usize
+    v: &mut ::flatbuffers::Verifier, pos: usize
-    ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
+  ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
-        i8::run_verifier(v, pos)
+    i8::run_verifier(v, pos)
-    }
+  }
 }
 
 impl ::flatbuffers::SimpleToVerifyInSlice for Color {}

samples/rust_generated/my_game/sample/equipment_generated.rs

@@ -2,69 +2,60 @@
 // @generated
 extern crate alloc;
 use super::*;
-
 #[deprecated(since = "2.0.0", note = "Use associated constants instead. This will no longer be generated in 2021.")]
 pub const ENUM_MIN_EQUIPMENT: u8 = 0;
-
 #[deprecated(since = "2.0.0", note = "Use associated constants instead. This will no longer be generated in 2021.")]
 pub const ENUM_MAX_EQUIPMENT: u8 = 1;
-
 #[deprecated(since = "2.0.0", note = "Use associated constants instead. This will no longer be generated in 2021.")]
 #[allow(non_camel_case_types)]
 pub const ENUM_VALUES_EQUIPMENT: [Equipment; 2] = [
-    Equipment::NONE,
+  Equipment::NONE,
-    Equipment::Weapon,
+  Equipment::Weapon,
 ];
 
 #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, Default)]
 #[repr(transparent)]
 pub struct Equipment(pub u8);
-
 #[allow(non_upper_case_globals)]
 impl Equipment {
-    pub const NONE: Self = Self(0);
+  pub const NONE: Self = Self(0);
-    pub const Weapon: Self = Self(1);
+  pub const Weapon: Self = Self(1);
 
-    pub const ENUM_MIN: u8 = 0;
+  pub const ENUM_MIN: u8 = 0;
-    pub const ENUM_MAX: u8 = 1;
+  pub const ENUM_MAX: u8 = 1;
-    pub const ENUM_VALUES: &'static [Self] = &[
+  pub const ENUM_VALUES: &'static [Self] = &[
-        Self::NONE,
+    Self::NONE,
-        Self::Weapon,
+    Self::Weapon,
-    ];
+  ];
-
+  /// Returns the variant's name or "" if unknown.
-    /// Returns the variant's name or "" if unknown.
+  pub fn variant_name(self) -> Option<&'static str> {
-    pub fn variant_name(self) -> Option<&'static str> {
+    match self {
-        match self {
+      Self::NONE => Some("NONE"),
-            Self::NONE => Some("NONE"),
+      Self::Weapon => Some("Weapon"),
-            Self::Weapon => Some("Weapon"),
+      _ => None,
-            _ => None,
-        }
     }
+  }
 }
-
 impl ::core::fmt::Debug for Equipment {
-    fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
+  fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
-        if let Some(name) = self.variant_name() {
+    if let Some(name) = self.variant_name() {
-            f.write_str(name)
+      f.write_str(name)
-        } else {
+    } else {
-            f.write_fmt(format_args!("<UNKNOWN {:?}>", self.0))
+      f.write_fmt(format_args!("<UNKNOWN {:?}>", self.0))
-        }
     }
+  }
 }
-
 impl<'a> ::flatbuffers::Follow<'a> for Equipment {
-    type Inner = Self;
+  type Inner = Self;
-
+  #[inline]
-    #[inline]
+  unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-    unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
+    let b = unsafe { ::flatbuffers::read_scalar_at::<u8>(buf, loc) };
-        let b = unsafe { ::flatbuffers::read_scalar_at::<u8>(buf, loc) };
+    Self(b)
-        Self(b)
+  }
-    }
 }
 
 impl ::flatbuffers::Push for Equipment {
     type Output = Equipment;
-
     #[inline]
     unsafe fn push(&self, dst: &mut [u8], _written_len: usize) {
         unsafe { ::flatbuffers::emplace_scalar::<u8>(dst, self.0) };
@@ -72,85 +63,75 @@ impl ::flatbuffers::Push for Equipment {
 }
 
 impl ::flatbuffers::EndianScalar for Equipment {
-    type Scalar = u8;
+  type Scalar = u8;
-
+  #[inline]
-    #[inline]
+  fn to_little_endian(self) -> u8 {
-    fn to_little_endian(self) -> u8 {
+    self.0.to_le()
-        self.0.to_le()
+  }
-    }
+  #[inline]
-
+  #[allow(clippy::wrong_self_convention)]
-    #[inline]
+  fn from_little_endian(v: u8) -> Self {
-    #[allow(clippy::wrong_self_convention)]
+    let b = u8::from_le(v);
-    fn from_little_endian(v: u8) -> Self {
+    Self(b)
-        let b = u8::from_le(v);
+  }
-        Self(b)
-    }
 }
 
 impl<'a> ::flatbuffers::Verifiable for Equipment {
-    #[inline]
+  #[inline]
-    fn run_verifier(
+  fn run_verifier(
-        v: &mut ::flatbuffers::Verifier, pos: usize
+    v: &mut ::flatbuffers::Verifier, pos: usize
-    ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
+  ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
-        u8::run_verifier(v, pos)
+    u8::run_verifier(v, pos)
-    }
+  }
 }
 
 impl ::flatbuffers::SimpleToVerifyInSlice for Equipment {}
-
 pub struct EquipmentUnionTableOffset {}
 
 #[allow(clippy::upper_case_acronyms)]
 #[non_exhaustive]
 #[derive(Debug, Clone, PartialEq)]
 pub enum EquipmentT {
-    NONE,
+  NONE,
-    Weapon(alloc::boxed::Box<WeaponT>),
+  Weapon(alloc::boxed::Box<WeaponT>),
 }
-
 impl Default for EquipmentT {
-    fn default() -> Self {
+  fn default() -> Self {
-        Self::NONE
+    Self::NONE
-    }
+  }
 }
-
 impl EquipmentT {
-    pub fn equipment_type(&self) -> Equipment {
+  pub fn equipment_type(&self) -> Equipment {
-        match self {
+    match self {
-            Self::NONE => Equipment::NONE,
+      Self::NONE => Equipment::NONE,
-            Self::Weapon(_) => Equipment::Weapon,
+      Self::Weapon(_) => Equipment::Weapon,
-        }
     }
-
+  }
-    pub fn pack<'b, A: ::flatbuffers::Allocator + 'b>(&self, fbb: &mut ::flatbuffers::FlatBufferBuilder<'b, A>) -> Option<::flatbuffers::WIPOffset<::flatbuffers::UnionWIPOffset>> {
+  pub fn pack<'b, A: ::flatbuffers::Allocator + 'b>(&self, fbb: &mut ::flatbuffers::FlatBufferBuilder<'b, A>) -> Option<::flatbuffers::WIPOffset<::flatbuffers::UnionWIPOffset>> {
-        match self {
+    match self {
-            Self::NONE => None,
+      Self::NONE => None,
-            Self::Weapon(v) => Some(v.pack(fbb).as_union_value()),
+      Self::Weapon(v) => Some(v.pack(fbb).as_union_value()),
-        }
     }
-
+  }
-    /// If the union variant matches, return the owned WeaponT, setting the union to NONE.
+  /// If the union variant matches, return the owned WeaponT, setting the union to NONE.
-    pub fn take_weapon(&mut self) -> Option<alloc::boxed::Box<WeaponT>> {
+  pub fn take_weapon(&mut self) -> Option<alloc::boxed::Box<WeaponT>> {
-        if let Self::Weapon(_) = self {
+    if let Self::Weapon(_) = self {
-            let v = ::core::mem::replace(self, Self::NONE);
+      let v = ::core::mem::replace(self, Self::NONE);
-            if let Self::Weapon(w) = v {
+      if let Self::Weapon(w) = v {
-                Some(w)
+        Some(w)
-            } else {
+      } else {
-                unreachable!()
+        unreachable!()
-            }
+      }
-        } else {
+    } else {
-            None
+      None
-        }
-    }
-
-    /// If the union variant matches, return a reference to the WeaponT.
-    pub fn as_weapon(&self) -> Option<&WeaponT> {
-        if let Self::Weapon(v) = self { Some(v.as_ref()) } else { None }
-    }
-
-    /// If the union variant matches, return a mutable reference to the WeaponT.
-    pub fn as_weapon_mut(&mut self) -> Option<&mut WeaponT> {
-        if let Self::Weapon(v) = self { Some(v.as_mut()) } else { None }
     }
+  }
+  /// If the union variant matches, return a reference to the WeaponT.
+  pub fn as_weapon(&self) -> Option<&WeaponT> {
+    if let Self::Weapon(v) = self { Some(v.as_ref()) } else { None }
+  }
+  /// If the union variant matches, return a mutable reference to the WeaponT.
+  pub fn as_weapon_mut(&mut self) -> Option<&mut WeaponT> {
+    if let Self::Weapon(v) = self { Some(v.as_mut()) } else { None }
+  }
 }
-

samples/rust_generated/my_game/sample/monster_generated.rs

@@ -2,225 +2,212 @@
 // @generated
 extern crate alloc;
 use super::*;
-
 pub enum MonsterOffset {}
-
 #[derive(Copy, Clone, PartialEq)]
+
 pub struct Monster<'a> {
-    pub _tab: ::flatbuffers::Table<'a>,
+  pub _tab: ::flatbuffers::Table<'a>,
 }
 
 impl<'a> ::flatbuffers::Follow<'a> for Monster<'a> {
-    type Inner = Monster<'a>;
+  type Inner = Monster<'a>;
-
+  #[inline]
-    #[inline]
+  unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-    unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
+    Self { _tab: unsafe { ::flatbuffers::Table::new(buf, loc) } }
-        Self { _tab: unsafe { ::flatbuffers::Table::new(buf, loc) } }
+  }
-    }
 }
 
 impl<'a> Monster<'a> {
-    pub const VT_POS: ::flatbuffers::VOffsetT = 4;
+  pub const VT_POS: ::flatbuffers::VOffsetT = 4;
-    pub const VT_MANA: ::flatbuffers::VOffsetT = 6;
+  pub const VT_MANA: ::flatbuffers::VOffsetT = 6;
-    pub const VT_HP: ::flatbuffers::VOffsetT = 8;
+  pub const VT_HP: ::flatbuffers::VOffsetT = 8;
-    pub const VT_NAME: ::flatbuffers::VOffsetT = 10;
+  pub const VT_NAME: ::flatbuffers::VOffsetT = 10;
-    pub const VT_INVENTORY: ::flatbuffers::VOffsetT = 14;
+  pub const VT_INVENTORY: ::flatbuffers::VOffsetT = 14;
-    pub const VT_COLOR: ::flatbuffers::VOffsetT = 16;
+  pub const VT_COLOR: ::flatbuffers::VOffsetT = 16;
-    pub const VT_WEAPONS: ::flatbuffers::VOffsetT = 18;
+  pub const VT_WEAPONS: ::flatbuffers::VOffsetT = 18;
-    pub const VT_EQUIPPED_TYPE: ::flatbuffers::VOffsetT = 20;
+  pub const VT_EQUIPPED_TYPE: ::flatbuffers::VOffsetT = 20;
-    pub const VT_EQUIPPED: ::flatbuffers::VOffsetT = 22;
+  pub const VT_EQUIPPED: ::flatbuffers::VOffsetT = 22;
-    pub const VT_PATH: ::flatbuffers::VOffsetT = 24;
+  pub const VT_PATH: ::flatbuffers::VOffsetT = 24;
 
-    pub const fn get_fully_qualified_name() -> &'static str {
+  pub const fn get_fully_qualified_name() -> &'static str {
-        "MyGame.Sample.Monster"
+    "MyGame.Sample.Monster"
-    }
+  }
 
-    #[inline]
+  #[inline]
-    pub unsafe fn init_from_table(table: ::flatbuffers::Table<'a>) -> Self {
+  pub unsafe fn init_from_table(table: ::flatbuffers::Table<'a>) -> Self {
-        Monster { _tab: table }
+    Monster { _tab: table }
-    }
+  }
+  #[allow(unused_mut)]
+  pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr, A: ::flatbuffers::Allocator + 'bldr>(
+    _fbb: &'mut_bldr mut ::flatbuffers::FlatBufferBuilder<'bldr, A>,
+    args: &'args MonsterArgs<'args>
+  ) -> ::flatbuffers::WIPOffset<Monster<'bldr>> {
+    let mut builder = MonsterBuilder::new(_fbb);
+    if let Some(x) = args.path { builder.add_path(x); }
+    if let Some(x) = args.equipped { builder.add_equipped(x); }
+    if let Some(x) = args.weapons { builder.add_weapons(x); }
+    if let Some(x) = args.inventory { builder.add_inventory(x); }
+    if let Some(x) = args.name { builder.add_name(x); }
+    if let Some(x) = args.pos { builder.add_pos(x); }
+    builder.add_hp(args.hp);
+    builder.add_mana(args.mana);
+    builder.add_equipped_type(args.equipped_type);
+    builder.add_color(args.color);
+    builder.finish()
+  }
 
-    #[allow(unused_mut)]
+  pub fn unpack(&self) -> MonsterT {
-    pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr, A: ::flatbuffers::Allocator + 'bldr>(
+    let pos = self.pos().map(|x| {
-        _fbb: &'mut_bldr mut ::flatbuffers::FlatBufferBuilder<'bldr, A>,
+      x.unpack()
-        args: &'args MonsterArgs<'args>
+    });
-    ) -> ::flatbuffers::WIPOffset<Monster<'bldr>> {
+    let mana = self.mana();
-        let mut builder = MonsterBuilder::new(_fbb);
+    let hp = self.hp();
-        if let Some(x) = args.path { builder.add_path(x); }
+    let name = self.name().map(|x| {
-        if let Some(x) = args.equipped { builder.add_equipped(x); }
+      alloc::string::ToString::to_string(x)
-        if let Some(x) = args.weapons { builder.add_weapons(x); }
+    });
-        if let Some(x) = args.inventory { builder.add_inventory(x); }
+    let inventory = self.inventory().map(|x| {
-        if let Some(x) = args.name { builder.add_name(x); }
+      x.into_iter().collect()
-        if let Some(x) = args.pos { builder.add_pos(x); }
+    });
-        builder.add_hp(args.hp);
+    let color = self.color();
-        builder.add_mana(args.mana);
+    let weapons = self.weapons().map(|x| {
-        builder.add_equipped_type(args.equipped_type);
+      x.iter().map(|t| t.unpack()).collect()
-        builder.add_color(args.color);
+    });
-        builder.finish()
+    let equipped = match self.equipped_type() {
+      Equipment::NONE => EquipmentT::NONE,
+      Equipment::Weapon => EquipmentT::Weapon(alloc::boxed::Box::new(
+        self.equipped_as_weapon()
+            .expect("Invalid union table, expected `Equipment::Weapon`.")
+            .unpack()
+      )),
+      _ => EquipmentT::NONE,
+    };
+    let path = self.path().map(|x| {
+      x.iter().map(|t| t.unpack()).collect()
+    });
+    MonsterT {
+      pos,
+      mana,
+      hp,
+      name,
+      inventory,
+      color,
+      weapons,
+      equipped,
+      path,
     }
+  }
 
-    pub fn unpack(&self) -> MonsterT {
+  #[inline]
-        let pos = self.pos().map(|x| {
+  pub fn pos(&self) -> Option<&'a Vec3> {
-            x.unpack()
+    // Safety:
-        });
+    // Created from valid Table for this object
-        let mana = self.mana();
+    // which contains a valid value in this slot
-        let hp = self.hp();
+    unsafe { self._tab.get::<Vec3>(Monster::VT_POS, None)}
-        let name = self.name().map(|x| {
+  }
-            alloc::string::ToString::to_string(x)
+  #[inline]
-        });
+  pub fn mana(&self) -> i16 {
-        let inventory = self.inventory().map(|x| {
+    // Safety:
-            x.into_iter().collect()
+    // Created from valid Table for this object
-        });
+    // which contains a valid value in this slot
-        let color = self.color();
+    unsafe { self._tab.get::<i16>(Monster::VT_MANA, Some(150)).unwrap()}
-        let weapons = self.weapons().map(|x| {
+  }
-            x.iter().map(|t| t.unpack()).collect()
+  #[inline]
-        });
+  pub fn hp(&self) -> i16 {
-        let equipped = match self.equipped_type() {
+    // Safety:
-            Equipment::NONE => EquipmentT::NONE,
+    // Created from valid Table for this object
-            Equipment::Weapon => EquipmentT::Weapon(alloc::boxed::Box::new(
+    // which contains a valid value in this slot
-                self.equipped_as_weapon()
+    unsafe { self._tab.get::<i16>(Monster::VT_HP, Some(100)).unwrap()}
-                    .expect("Invalid union table, expected `Equipment::Weapon`.")
+  }
-                    .unpack()
+  #[inline]
-            )),
+  pub fn name(&self) -> Option<&'a str> {
-            _ => EquipmentT::NONE,
+    // Safety:
-        };
+    // Created from valid Table for this object
-        let path = self.path().map(|x| {
+    // which contains a valid value in this slot
-            x.iter().map(|t| t.unpack()).collect()
+    unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<&str>>(Monster::VT_NAME, None)}
-        });
+  }
-        MonsterT {
+  #[inline]
-            pos,
+  pub fn inventory(&self) -> Option<::flatbuffers::Vector<'a, u8>> {
-            mana,
+    // Safety:
-            hp,
+    // Created from valid Table for this object
-            name,
+    // which contains a valid value in this slot
-            inventory,
+    unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'a, u8>>>(Monster::VT_INVENTORY, None)}
-            color,
+  }
-            weapons,
+  #[inline]
-            equipped,
+  pub fn color(&self) -> Color {
-            path,
+    // Safety:
-        }
+    // Created from valid Table for this object
+    // which contains a valid value in this slot
+    unsafe { self._tab.get::<Color>(Monster::VT_COLOR, Some(Color::Blue)).unwrap()}
+  }
+  #[inline]
+  pub fn weapons(&self) -> Option<::flatbuffers::Vector<'a, ::flatbuffers::ForwardsUOffset<Weapon<'a>>>> {
+    // Safety:
+    // Created from valid Table for this object
+    // which contains a valid value in this slot
+    unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'a, ::flatbuffers::ForwardsUOffset<Weapon>>>>(Monster::VT_WEAPONS, None)}
+  }
+  #[inline]
+  pub fn equipped_type(&self) -> Equipment {
+    // Safety:
+    // Created from valid Table for this object
+    // which contains a valid value in this slot
+    unsafe { self._tab.get::<Equipment>(Monster::VT_EQUIPPED_TYPE, Some(Equipment::NONE)).unwrap()}
+  }
+  #[inline]
+  pub fn equipped(&self) -> Option<::flatbuffers::Table<'a>> {
+    // Safety:
+    // Created from valid Table for this object
+    // which contains a valid value in this slot
+    unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<::flatbuffers::Table<'a>>>(Monster::VT_EQUIPPED, None)}
+  }
+  #[inline]
+  pub fn path(&self) -> Option<::flatbuffers::Vector<'a, Vec3>> {
+    // Safety:
+    // Created from valid Table for this object
+    // which contains a valid value in this slot
+    unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'a, Vec3>>>(Monster::VT_PATH, None)}
+  }
+  #[inline]
+  #[allow(non_snake_case)]
+  pub fn equipped_as_weapon(&self) -> Option<Weapon<'a>> {
+    if self.equipped_type() == Equipment::Weapon {
+      self.equipped().map(|t| {
+       // Safety:
+       // Created from a valid Table for this object
+       // Which contains a valid union in this slot
+       unsafe { Weapon::init_from_table(t) }
+     })
+    } else {
+      None
     }
+  }
 
-    #[inline]
-    pub fn pos(&self) -> Option<&'a Vec3> {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<Vec3>(Monster::VT_POS, None)}
-    }
-
-    #[inline]
-    pub fn mana(&self) -> i16 {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<i16>(Monster::VT_MANA, Some(150)).unwrap()}
-    }
-
-    #[inline]
-    pub fn hp(&self) -> i16 {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<i16>(Monster::VT_HP, Some(100)).unwrap()}
-    }
-
-    #[inline]
-    pub fn name(&self) -> Option<&'a str> {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<&str>>(Monster::VT_NAME, None)}
-    }
-
-    #[inline]
-    pub fn inventory(&self) -> Option<::flatbuffers::Vector<'a, u8>> {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'a, u8>>>(Monster::VT_INVENTORY, None)}
-    }
-
-    #[inline]
-    pub fn color(&self) -> Color {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<Color>(Monster::VT_COLOR, Some(Color::Blue)).unwrap()}
-    }
-
-    #[inline]
-    pub fn weapons(&self) -> Option<::flatbuffers::Vector<'a, ::flatbuffers::ForwardsUOffset<Weapon<'a>>>> {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'a, ::flatbuffers::ForwardsUOffset<Weapon>>>>(Monster::VT_WEAPONS, None)}
-    }
-
-    #[inline]
-    pub fn equipped_type(&self) -> Equipment {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<Equipment>(Monster::VT_EQUIPPED_TYPE, Some(Equipment::NONE)).unwrap()}
-    }
-
-    #[inline]
-    pub fn equipped(&self) -> Option<::flatbuffers::Table<'a>> {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<::flatbuffers::Table<'a>>>(Monster::VT_EQUIPPED, None)}
-    }
-
-    #[inline]
-    pub fn path(&self) -> Option<::flatbuffers::Vector<'a, Vec3>> {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'a, Vec3>>>(Monster::VT_PATH, None)}
-    }
-
-    #[inline]
-    #[allow(non_snake_case)]
-    pub fn equipped_as_weapon(&self) -> Option<Weapon<'a>> {
-        if self.equipped_type() == Equipment::Weapon {
-            self.equipped().map(|t| {
-                // Safety:
-                // Created from a valid Table for this object
-                // Which contains a valid union in this slot
-                unsafe { Weapon::init_from_table(t) }
-            })
-        } else {
-            None
-        }
-    }
 }
 
 impl ::flatbuffers::Verifiable for Monster<'_> {
-    #[inline]
+  #[inline]
-    fn run_verifier(
+  fn run_verifier(
-        v: &mut ::flatbuffers::Verifier, pos: usize
+    v: &mut ::flatbuffers::Verifier, pos: usize
-    ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
+  ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
-        v.visit_table(pos)?
+    v.visit_table(pos)?
-            .visit_field::<Vec3>("pos", Self::VT_POS, false)?
+     .visit_field::<Vec3>("pos", Self::VT_POS, false)?
-            .visit_field::<i16>("mana", Self::VT_MANA, false)?
+     .visit_field::<i16>("mana", Self::VT_MANA, false)?
-            .visit_field::<i16>("hp", Self::VT_HP, false)?
+     .visit_field::<i16>("hp", Self::VT_HP, false)?
-            .visit_field::<::flatbuffers::ForwardsUOffset<&str>>("name", Self::VT_NAME, false)?
+     .visit_field::<::flatbuffers::ForwardsUOffset<&str>>("name", Self::VT_NAME, false)?
-            .visit_field::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'_, u8>>>("inventory", Self::VT_INVENTORY, false)?
+     .visit_field::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'_, u8>>>("inventory", Self::VT_INVENTORY, false)?
-            .visit_field::<Color>("color", Self::VT_COLOR, false)?
+     .visit_field::<Color>("color", Self::VT_COLOR, false)?
-            .visit_field::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'_, ::flatbuffers::ForwardsUOffset<Weapon>>>>("weapons", Self::VT_WEAPONS, false)?
+     .visit_field::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'_, ::flatbuffers::ForwardsUOffset<Weapon>>>>("weapons", Self::VT_WEAPONS, false)?
-            .visit_union::<Equipment, _>("equipped_type", Self::VT_EQUIPPED_TYPE, "equipped", Self::VT_EQUIPPED, false, |key, v, pos| {
+     .visit_union::<Equipment, _>("equipped_type", Self::VT_EQUIPPED_TYPE, "equipped", Self::VT_EQUIPPED, false, |key, v, pos| {
-                match key {
+        match key {
-                    Equipment::Weapon => v.verify_union_variant::<::flatbuffers::ForwardsUOffset<Weapon>>("Equipment::Weapon", pos),
+          Equipment::Weapon => v.verify_union_variant::<::flatbuffers::ForwardsUOffset<Weapon>>("Equipment::Weapon", pos),
-                    _ => Ok(()),
+          _ => Ok(()),
-                }
+        }
-            })?
+     })?
-            .visit_field::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'_, Vec3>>>("path", Self::VT_PATH, false)?
+     .visit_field::<::flatbuffers::ForwardsUOffset<::flatbuffers::Vector<'_, Vec3>>>("path", Self::VT_PATH, false)?
-            .finish();
+     .finish();
-        Ok(())
+    Ok(())
-    }
+  }
 }
-
 pub struct MonsterArgs<'a> {
     pub pos: Option<&'a Vec3>,
     pub mana: i16,
@@ -233,273 +220,246 @@ pub struct MonsterArgs<'a> {
     pub equipped: Option<::flatbuffers::WIPOffset<::flatbuffers::UnionWIPOffset>>,
     pub path: Option<::flatbuffers::WIPOffset<::flatbuffers::Vector<'a, Vec3>>>,
 }
-
 impl<'a> Default for MonsterArgs<'a> {
-    #[inline]
+  #[inline]
-    fn default() -> Self {
+  fn default() -> Self {
-        MonsterArgs {
+    MonsterArgs {
-            pos: None,
+      pos: None,
-            mana: 150,
+      mana: 150,
-            hp: 100,
+      hp: 100,
-            name: None,
+      name: None,
-            inventory: None,
+      inventory: None,
-            color: Color::Blue,
+      color: Color::Blue,
-            weapons: None,
+      weapons: None,
-            equipped_type: Equipment::NONE,
+      equipped_type: Equipment::NONE,
-            equipped: None,
+      equipped: None,
-            path: None,
+      path: None,
-        }
     }
+  }
 }
 
 pub struct MonsterBuilder<'a: 'b, 'b, A: ::flatbuffers::Allocator + 'a> {
-    fbb_: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>,
+  fbb_: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>,
-    start_: ::flatbuffers::WIPOffset<::flatbuffers::TableUnfinishedWIPOffset>,
+  start_: ::flatbuffers::WIPOffset<::flatbuffers::TableUnfinishedWIPOffset>,
 }
-
 impl<'a: 'b, 'b, A: ::flatbuffers::Allocator + 'a> MonsterBuilder<'a, 'b, A> {
-    #[inline]
+  #[inline]
-    pub fn add_pos(&mut self, pos: &Vec3) {
+  pub fn add_pos(&mut self, pos: &Vec3) {
-        self.fbb_.push_slot_always::<&Vec3>(Monster::VT_POS, pos);
+    self.fbb_.push_slot_always::<&Vec3>(Monster::VT_POS, pos);
-    }
+  }
-
+  #[inline]
-    #[inline]
+  pub fn add_mana(&mut self, mana: i16) {
-    pub fn add_mana(&mut self, mana: i16) {
+    self.fbb_.push_slot::<i16>(Monster::VT_MANA, mana, 150);
-        self.fbb_.push_slot::<i16>(Monster::VT_MANA, mana, 150);
+  }
-    }
+  #[inline]
-
+  pub fn add_hp(&mut self, hp: i16) {
-    #[inline]
+    self.fbb_.push_slot::<i16>(Monster::VT_HP, hp, 100);
-    pub fn add_hp(&mut self, hp: i16) {
+  }
-        self.fbb_.push_slot::<i16>(Monster::VT_HP, hp, 100);
+  #[inline]
-    }
+  pub fn add_name(&mut self, name: ::flatbuffers::WIPOffset<&'b  str>) {
-
+    self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Monster::VT_NAME, name);
-    #[inline]
+  }
-    pub fn add_name(&mut self, name: ::flatbuffers::WIPOffset<&'b  str>) {
+  #[inline]
-        self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Monster::VT_NAME, name);
+  pub fn add_inventory(&mut self, inventory: ::flatbuffers::WIPOffset<::flatbuffers::Vector<'b , u8>>) {
-    }
+    self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Monster::VT_INVENTORY, inventory);
-
+  }
-    #[inline]
+  #[inline]
-    pub fn add_inventory(&mut self, inventory: ::flatbuffers::WIPOffset<::flatbuffers::Vector<'b , u8>>) {
+  pub fn add_color(&mut self, color: Color) {
-        self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Monster::VT_INVENTORY, inventory);
+    self.fbb_.push_slot::<Color>(Monster::VT_COLOR, color, Color::Blue);
-    }
+  }
-
+  #[inline]
-    #[inline]
+  pub fn add_weapons(&mut self, weapons: ::flatbuffers::WIPOffset<::flatbuffers::Vector<'b , ::flatbuffers::ForwardsUOffset<Weapon<'b >>>>) {
-    pub fn add_color(&mut self, color: Color) {
+    self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Monster::VT_WEAPONS, weapons);
-        self.fbb_.push_slot::<Color>(Monster::VT_COLOR, color, Color::Blue);
+  }
-    }
+  #[inline]
-
+  pub fn add_equipped_type(&mut self, equipped_type: Equipment) {
-    #[inline]
+    self.fbb_.push_slot::<Equipment>(Monster::VT_EQUIPPED_TYPE, equipped_type, Equipment::NONE);
-    pub fn add_weapons(&mut self, weapons: ::flatbuffers::WIPOffset<::flatbuffers::Vector<'b , ::flatbuffers::ForwardsUOffset<Weapon<'b >>>>) {
+  }
-        self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Monster::VT_WEAPONS, weapons);
+  #[inline]
-    }
+  pub fn add_equipped(&mut self, equipped: ::flatbuffers::WIPOffset<::flatbuffers::UnionWIPOffset>) {
-
+    self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Monster::VT_EQUIPPED, equipped);
-    #[inline]
+  }
-    pub fn add_equipped_type(&mut self, equipped_type: Equipment) {
+  #[inline]
-        self.fbb_.push_slot::<Equipment>(Monster::VT_EQUIPPED_TYPE, equipped_type, Equipment::NONE);
+  pub fn add_path(&mut self, path: ::flatbuffers::WIPOffset<::flatbuffers::Vector<'b , Vec3>>) {
-    }
+    self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Monster::VT_PATH, path);
-
+  }
-    #[inline]
+  #[inline]
-    pub fn add_equipped(&mut self, equipped: ::flatbuffers::WIPOffset<::flatbuffers::UnionWIPOffset>) {
+  pub fn new(_fbb: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>) -> MonsterBuilder<'a, 'b, A> {
-        self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Monster::VT_EQUIPPED, equipped);
+    let start = _fbb.start_table();
-    }
+    MonsterBuilder {
-
+      fbb_: _fbb,
-    #[inline]
+      start_: start,
-    pub fn add_path(&mut self, path: ::flatbuffers::WIPOffset<::flatbuffers::Vector<'b , Vec3>>) {
-        self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Monster::VT_PATH, path);
-    }
-
-    #[inline]
-    pub fn new(_fbb: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>) -> MonsterBuilder<'a, 'b, A> {
-        let start = _fbb.start_table();
-        MonsterBuilder {
-            fbb_: _fbb,
-            start_: start,
-        }
-    }
-
-    #[inline]
-    pub fn finish(self) -> ::flatbuffers::WIPOffset<Monster<'a>> {
-        let o = self.fbb_.end_table(self.start_);
-        ::flatbuffers::WIPOffset::new(o.value())
     }
+  }
+  #[inline]
+  pub fn finish(self) -> ::flatbuffers::WIPOffset<Monster<'a>> {
+    let o = self.fbb_.end_table(self.start_);
+    ::flatbuffers::WIPOffset::new(o.value())
+  }
 }
 
 impl ::core::fmt::Debug for Monster<'_> {
-    fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
+  fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
-        let mut ds = f.debug_struct("Monster");
+    let mut ds = f.debug_struct("Monster");
-        ds.field("pos", &self.pos());
+      ds.field("pos", &self.pos());
-        ds.field("mana", &self.mana());
+      ds.field("mana", &self.mana());
-        ds.field("hp", &self.hp());
+      ds.field("hp", &self.hp());
-        ds.field("name", &self.name());
+      ds.field("name", &self.name());
-        ds.field("inventory", &self.inventory());
+      ds.field("inventory", &self.inventory());
-        ds.field("color", &self.color());
+      ds.field("color", &self.color());
-        ds.field("weapons", &self.weapons());
+      ds.field("weapons", &self.weapons());
-        ds.field("equipped_type", &self.equipped_type());
+      ds.field("equipped_type", &self.equipped_type());
-        match self.equipped_type() {
+      match self.equipped_type() {
-            Equipment::Weapon => {
+        Equipment::Weapon => {
-                if let Some(x) = self.equipped_as_weapon() {
+          if let Some(x) = self.equipped_as_weapon() {
-                    ds.field("equipped", &x)
+            ds.field("equipped", &x)
-                } else {
+          } else {
-                    ds.field("equipped", &"InvalidFlatbuffer: Union discriminant does not match value.")
+            ds.field("equipped", &"InvalidFlatbuffer: Union discriminant does not match value.")
-                }
+          }
-            },
+        },
-            _ => {
+        _ => {
-                let x: Option<()> = None;
+          let x: Option<()> = None;
-                ds.field("equipped", &x)
+          ds.field("equipped", &x)
-            },
+        },
-        };
+      };
-        ds.field("path", &self.path());
+      ds.field("path", &self.path());
-        ds.finish()
+      ds.finish()
-    }
+  }
 }
-
 #[non_exhaustive]
 #[derive(Debug, Clone, PartialEq)]
 pub struct MonsterT {
-    pub pos: Option<Vec3T>,
+  pub pos: Option<Vec3T>,
-    pub mana: i16,
+  pub mana: i16,
-    pub hp: i16,
+  pub hp: i16,
-    pub name: Option<alloc::string::String>,
+  pub name: Option<alloc::string::String>,
-    pub inventory: Option<alloc::vec::Vec<u8>>,
+  pub inventory: Option<alloc::vec::Vec<u8>>,
-    pub color: Color,
+  pub color: Color,
-    pub weapons: Option<alloc::vec::Vec<WeaponT>>,
+  pub weapons: Option<alloc::vec::Vec<WeaponT>>,
-    pub equipped: EquipmentT,
+  pub equipped: EquipmentT,
-    pub path: Option<alloc::vec::Vec<Vec3T>>,
+  pub path: Option<alloc::vec::Vec<Vec3T>>,
 }
-
 impl Default for MonsterT {
-    fn default() -> Self {
+  fn default() -> Self {
-        Self {
+    Self {
-            pos: None,
+      pos: None,
-            mana: 150,
+      mana: 150,
-            hp: 100,
+      hp: 100,
-            name: None,
+      name: None,
-            inventory: None,
+      inventory: None,
-            color: Color::Blue,
+      color: Color::Blue,
-            weapons: None,
+      weapons: None,
-            equipped: EquipmentT::NONE,
+      equipped: EquipmentT::NONE,
-            path: None,
+      path: None,
-        }
     }
+  }
 }
-
 impl MonsterT {
-    pub fn pack<'b, A: ::flatbuffers::Allocator + 'b>(
+  pub fn pack<'b, A: ::flatbuffers::Allocator + 'b>(
-        &self,
+    &self,
-        _fbb: &mut ::flatbuffers::FlatBufferBuilder<'b, A>
+    _fbb: &mut ::flatbuffers::FlatBufferBuilder<'b, A>
-    ) -> ::flatbuffers::WIPOffset<Monster<'b>> {
+  ) -> ::flatbuffers::WIPOffset<Monster<'b>> {
-        let pos_tmp = self.pos.as_ref().map(|x| x.pack());
+    let pos_tmp = self.pos.as_ref().map(|x| x.pack());
-        let pos = pos_tmp.as_ref();
+    let pos = pos_tmp.as_ref();
-        let mana = self.mana;
+    let mana = self.mana;
-        let hp = self.hp;
+    let hp = self.hp;
-        let name = self.name.as_ref().map(|x|{
+    let name = self.name.as_ref().map(|x|{
-            _fbb.create_string(x)
+      _fbb.create_string(x)
-        });
+    });
-        let inventory = self.inventory.as_ref().map(|x|{
+    let inventory = self.inventory.as_ref().map(|x|{
-            _fbb.create_vector(x)
+      _fbb.create_vector(x)
-        });
+    });
-        let color = self.color;
+    let color = self.color;
-        let weapons = self.weapons.as_ref().map(|x|{
+    let weapons = self.weapons.as_ref().map(|x|{
-            let w: alloc::vec::Vec<_> = x.iter().map(|t| t.pack(_fbb)).collect();_fbb.create_vector(&w)
+      let w: alloc::vec::Vec<_> = x.iter().map(|t| t.pack(_fbb)).collect();_fbb.create_vector(&w)
-        });
+    });
-        let equipped_type = self.equipped.equipment_type();
+    let equipped_type = self.equipped.equipment_type();
-        let equipped = self.equipped.pack(_fbb);
+    let equipped = self.equipped.pack(_fbb);
-        let path = self.path.as_ref().map(|x|{
+    let path = self.path.as_ref().map(|x|{
-            let w: alloc::vec::Vec<_> = x.iter().map(|t| t.pack()).collect();_fbb.create_vector(&w)
+      let w: alloc::vec::Vec<_> = x.iter().map(|t| t.pack()).collect();_fbb.create_vector(&w)
-        });
+    });
-        Monster::create(_fbb, &MonsterArgs{
+    Monster::create(_fbb, &MonsterArgs{
-            pos,
+      pos,
-            mana,
+      mana,
-            hp,
+      hp,
-            name,
+      name,
-            inventory,
+      inventory,
-            color,
+      color,
-            weapons,
+      weapons,
-            equipped_type,
+      equipped_type,
-            equipped,
+      equipped,
-            path,
+      path,
-        })
+    })
-    }
+  }
 }
-
+#[inline]
 /// Verifies that a buffer of bytes contains a `Monster`
 /// and returns it.
 /// Note that verification is still experimental and may not
 /// catch every error, or be maximally performant. For the
 /// previous, unchecked, behavior use
 /// `root_as_monster_unchecked`.
-#[inline]
 pub fn root_as_monster(buf: &[u8]) -> Result<Monster<'_>, ::flatbuffers::InvalidFlatbuffer> {
-    ::flatbuffers::root::<Monster>(buf)
+  ::flatbuffers::root::<Monster>(buf)
 }
-
+#[inline]
 /// Verifies that a buffer of bytes contains a size prefixed
 /// `Monster` and returns it.
 /// Note that verification is still experimental and may not
 /// catch every error, or be maximally performant. For the
 /// previous, unchecked, behavior use
 /// `size_prefixed_root_as_monster_unchecked`.
-#[inline]
 pub fn size_prefixed_root_as_monster(buf: &[u8]) -> Result<Monster<'_>, ::flatbuffers::InvalidFlatbuffer> {
-    ::flatbuffers::size_prefixed_root::<Monster>(buf)
+  ::flatbuffers::size_prefixed_root::<Monster>(buf)
 }
-
+#[inline]
 /// Verifies, with the given options, that a buffer of bytes
 /// contains a `Monster` and returns it.
 /// Note that verification is still experimental and may not
 /// catch every error, or be maximally performant. For the
 /// previous, unchecked, behavior use
 /// `root_as_monster_unchecked`.
-#[inline]
 pub fn root_as_monster_with_opts<'b, 'o>(
-    opts: &'o ::flatbuffers::VerifierOptions,
+  opts: &'o ::flatbuffers::VerifierOptions,
-    buf: &'b [u8],
+  buf: &'b [u8],
 ) -> Result<Monster<'b>, ::flatbuffers::InvalidFlatbuffer> {
-    ::flatbuffers::root_with_opts::<Monster<'b>>(opts, buf)
+  ::flatbuffers::root_with_opts::<Monster<'b>>(opts, buf)
 }
-
+#[inline]
 /// Verifies, with the given verifier options, that a buffer of
 /// bytes contains a size prefixed `Monster` and returns
 /// it. Note that verification is still experimental and may not
 /// catch every error, or be maximally performant. For the
 /// previous, unchecked, behavior use
 /// `root_as_monster_unchecked`.
-#[inline]
 pub fn size_prefixed_root_as_monster_with_opts<'b, 'o>(
-    opts: &'o ::flatbuffers::VerifierOptions,
+  opts: &'o ::flatbuffers::VerifierOptions,
-    buf: &'b [u8],
+  buf: &'b [u8],
 ) -> Result<Monster<'b>, ::flatbuffers::InvalidFlatbuffer> {
-    ::flatbuffers::size_prefixed_root_with_opts::<Monster<'b>>(opts, buf)
+  ::flatbuffers::size_prefixed_root_with_opts::<Monster<'b>>(opts, buf)
 }
-
+#[inline]
 /// Assumes, without verification, that a buffer of bytes contains a Monster and returns it.
 /// # Safety
 /// Callers must trust the given bytes do indeed contain a valid `Monster`.
-#[inline]
 pub unsafe fn root_as_monster_unchecked(buf: &[u8]) -> Monster<'_> {
-    unsafe { ::flatbuffers::root_unchecked::<Monster>(buf) }
+  unsafe { ::flatbuffers::root_unchecked::<Monster>(buf) }
 }
-
+#[inline]
 /// Assumes, without verification, that a buffer of bytes contains a size prefixed Monster and returns it.
 /// # Safety
 /// Callers must trust the given bytes do indeed contain a valid size prefixed `Monster`.
-#[inline]
 pub unsafe fn size_prefixed_root_as_monster_unchecked(buf: &[u8]) -> Monster<'_> {
-    unsafe { ::flatbuffers::size_prefixed_root_unchecked::<Monster>(buf) }
+  unsafe { ::flatbuffers::size_prefixed_root_unchecked::<Monster>(buf) }
 }
-
 #[inline]
 pub fn finish_monster_buffer<'a, 'b, A: ::flatbuffers::Allocator + 'a>(
     fbb: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>,
-    root: ::flatbuffers::WIPOffset<Monster<'a>>
+    root: ::flatbuffers::WIPOffset<Monster<'a>>) {
-) {
+  fbb.finish(root, None);
-    fbb.finish(root, None);
 }
 
 #[inline]
-pub fn finish_size_prefixed_monster_buffer<'a, 'b, A: ::flatbuffers::Allocator + 'a>(
+pub fn finish_size_prefixed_monster_buffer<'a, 'b, A: ::flatbuffers::Allocator + 'a>(fbb: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>, root: ::flatbuffers::WIPOffset<Monster<'a>>) {
-    fbb: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>,
+  fbb.finish_size_prefixed(root, None);
-    root: ::flatbuffers::WIPOffset<Monster<'a>>
-) {
-    fbb.finish_size_prefixed(root, None);
 }

samples/rust_generated/my_game/sample/vec_3_generated.rs

@@ -2,57 +2,47 @@
 // @generated
 extern crate alloc;
 use super::*;
-
 // struct Vec3, aligned to 4
 #[repr(transparent)]
 #[derive(Clone, Copy, PartialEq)]
 pub struct Vec3(pub [u8; 12]);
-
+impl Default for Vec3 { 
-impl Default for Vec3 {
+  fn default() -> Self { 
-    fn default() -> Self {
+    Self([0; 12])
-        Self([0; 12])
+  }
-    }
 }
-
 impl ::core::fmt::Debug for Vec3 {
-    fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
+  fn fmt(&self, f: &mut ::core::fmt::Formatter) -> ::core::fmt::Result {
-        f.debug_struct("Vec3")
+    f.debug_struct("Vec3")
-            .field("x", &self.x())
+      .field("x", &self.x())
-            .field("y", &self.y())
+      .field("y", &self.y())
-            .field("z", &self.z())
+      .field("z", &self.z())
-            .finish()
+      .finish()
-    }
+  }
 }
 
 impl ::flatbuffers::SimpleToVerifyInSlice for Vec3 {}
-
 impl<'a> ::flatbuffers::Follow<'a> for Vec3 {
-    type Inner = &'a Vec3;
+  type Inner = &'a Vec3;
-
+  #[inline]
-    #[inline]
+  unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-    unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
+    unsafe { <&'a Vec3>::follow(buf, loc) }
-        unsafe { <&'a Vec3>::follow(buf, loc) }
+  }
-    }
 }
-
 impl<'a> ::flatbuffers::Follow<'a> for &'a Vec3 {
-    type Inner = &'a Vec3;
+  type Inner = &'a Vec3;
-
+  #[inline]
-    #[inline]
+  unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-    unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
+    unsafe { ::flatbuffers::follow_cast_ref::<Vec3>(buf, loc) }
-        unsafe { ::flatbuffers::follow_cast_ref::<Vec3>(buf, loc) }
+  }
-    }
 }
-
 impl<'b> ::flatbuffers::Push for Vec3 {
     type Output = Vec3;
-
     #[inline]
     unsafe fn push(&self, dst: &mut [u8], _written_len: usize) {
         let src = unsafe { ::core::slice::from_raw_parts(self as *const Vec3 as *const u8, <Self as ::flatbuffers::Push>::size()) };
         dst.copy_from_slice(src);
     }
-
     #[inline]
     fn alignment() -> ::flatbuffers::PushAlignment {
         ::flatbuffers::PushAlignment::new(4)
@@ -60,150 +50,141 @@ impl<'b> ::flatbuffers::Push for Vec3 {
 }
 
 impl<'a> ::flatbuffers::Verifiable for Vec3 {
-    #[inline]
+  #[inline]
-    fn run_verifier(
+  fn run_verifier(
-        v: &mut ::flatbuffers::Verifier, pos: usize
+    v: &mut ::flatbuffers::Verifier, pos: usize
-    ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
+  ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
-        v.in_buffer::<Self>(pos)
+    v.in_buffer::<Self>(pos)
-    }
+  }
 }
 
 impl<'a> Vec3 {
-    #[allow(clippy::too_many_arguments)]
+  #[allow(clippy::too_many_arguments)]
-    pub fn new(
+  pub fn new(
-        x: f32,
+    x: f32,
-        y: f32,
+    y: f32,
-        z: f32,
+    z: f32,
-    ) -> Self {
+  ) -> Self {
-        let mut s = Self([0; 12]);
+    let mut s = Self([0; 12]);
-        s.set_x(x);
+    s.set_x(x);
-        s.set_y(y);
+    s.set_y(y);
-        s.set_z(z);
+    s.set_z(z);
-        s
+    s
-    }
+  }
 
-    pub const fn get_fully_qualified_name() -> &'static str {
+  pub const fn get_fully_qualified_name() -> &'static str {
-        "MyGame.Sample.Vec3"
+    "MyGame.Sample.Vec3"
-    }
+  }
 
-    pub fn x(&self) -> f32 {
+  pub fn x(&self) -> f32 {
-        let mut mem = ::core::mem::MaybeUninit::<<f32 as ::flatbuffers::EndianScalar>::Scalar>::uninit();
+    let mut mem = ::core::mem::MaybeUninit::<<f32 as ::flatbuffers::EndianScalar>::Scalar>::uninit();
-        // Safety:
+    // Safety:
-        // Created from a valid Table for this object
+    // Created from a valid Table for this object
-        // Which contains a valid value in this slot
+    // Which contains a valid value in this slot
-        ::flatbuffers::EndianScalar::from_little_endian(unsafe {
+    ::flatbuffers::EndianScalar::from_little_endian(unsafe {
-            ::core::ptr::copy_nonoverlapping(
+      ::core::ptr::copy_nonoverlapping(
-                self.0[0..].as_ptr(),
+        self.0[0..].as_ptr(),
-                mem.as_mut_ptr() as *mut u8,
+        mem.as_mut_ptr() as *mut u8,
-                ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
+        ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
-            );
+      );
-            mem.assume_init()
+      mem.assume_init()
-        })
+    })
-    }
+  }
 
-    pub fn set_x(&mut self, x: f32) {
+  pub fn set_x(&mut self, x: f32) {
-        let x_le = ::flatbuffers::EndianScalar::to_little_endian(x);
+    let x_le = ::flatbuffers::EndianScalar::to_little_endian(x);
-        // Safety:
+    // Safety:
-        // Created from a valid Table for this object
+    // Created from a valid Table for this object
-        // Which contains a valid value in this slot
+    // Which contains a valid value in this slot
-        unsafe {
+    unsafe {
-            ::core::ptr::copy_nonoverlapping(
+      ::core::ptr::copy_nonoverlapping(
-                &x_le as *const _ as *const u8,
+        &x_le as *const _ as *const u8,
-                self.0[0..].as_mut_ptr(),
+        self.0[0..].as_mut_ptr(),
-                ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
+        ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
-            );
+      );
-        }
     }
+  }
 
-    pub fn y(&self) -> f32 {
+  pub fn y(&self) -> f32 {
-        let mut mem = ::core::mem::MaybeUninit::<<f32 as ::flatbuffers::EndianScalar>::Scalar>::uninit();
+    let mut mem = ::core::mem::MaybeUninit::<<f32 as ::flatbuffers::EndianScalar>::Scalar>::uninit();
-        // Safety:
+    // Safety:
-        // Created from a valid Table for this object
+    // Created from a valid Table for this object
-        // Which contains a valid value in this slot
+    // Which contains a valid value in this slot
-        ::flatbuffers::EndianScalar::from_little_endian(unsafe {
+    ::flatbuffers::EndianScalar::from_little_endian(unsafe {
-            ::core::ptr::copy_nonoverlapping(
+      ::core::ptr::copy_nonoverlapping(
-                self.0[4..].as_ptr(),
+        self.0[4..].as_ptr(),
-                mem.as_mut_ptr() as *mut u8,
+        mem.as_mut_ptr() as *mut u8,
-                ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
+        ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
-            );
+      );
-            mem.assume_init()
+      mem.assume_init()
-        })
+    })
-    }
+  }
 
-    pub fn set_y(&mut self, x: f32) {
+  pub fn set_y(&mut self, x: f32) {
-        let x_le = ::flatbuffers::EndianScalar::to_little_endian(x);
+    let x_le = ::flatbuffers::EndianScalar::to_little_endian(x);
-        // Safety:
+    // Safety:
-        // Created from a valid Table for this object
+    // Created from a valid Table for this object
-        // Which contains a valid value in this slot
+    // Which contains a valid value in this slot
-        unsafe {
+    unsafe {
-            ::core::ptr::copy_nonoverlapping(
+      ::core::ptr::copy_nonoverlapping(
-                &x_le as *const _ as *const u8,
+        &x_le as *const _ as *const u8,
-                self.0[4..].as_mut_ptr(),
+        self.0[4..].as_mut_ptr(),
-                ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
+        ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
-            );
+      );
-        }
     }
+  }
 
-    pub fn z(&self) -> f32 {
+  pub fn z(&self) -> f32 {
-        let mut mem = ::core::mem::MaybeUninit::<<f32 as ::flatbuffers::EndianScalar>::Scalar>::uninit();
+    let mut mem = ::core::mem::MaybeUninit::<<f32 as ::flatbuffers::EndianScalar>::Scalar>::uninit();
-        // Safety:
+    // Safety:
-        // Created from a valid Table for this object
+    // Created from a valid Table for this object
-        // Which contains a valid value in this slot
+    // Which contains a valid value in this slot
-        ::flatbuffers::EndianScalar::from_little_endian(unsafe {
+    ::flatbuffers::EndianScalar::from_little_endian(unsafe {
-            ::core::ptr::copy_nonoverlapping(
+      ::core::ptr::copy_nonoverlapping(
-                self.0[8..].as_ptr(),
+        self.0[8..].as_ptr(),
-                mem.as_mut_ptr() as *mut u8,
+        mem.as_mut_ptr() as *mut u8,
-                ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
+        ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
-            );
+      );
-            mem.assume_init()
+      mem.assume_init()
-        })
+    })
-    }
+  }
 
-    pub fn set_z(&mut self, x: f32) {
+  pub fn set_z(&mut self, x: f32) {
-        let x_le = ::flatbuffers::EndianScalar::to_little_endian(x);
+    let x_le = ::flatbuffers::EndianScalar::to_little_endian(x);
-        // Safety:
+    // Safety:
-        // Created from a valid Table for this object
+    // Created from a valid Table for this object
-        // Which contains a valid value in this slot
+    // Which contains a valid value in this slot
-        unsafe {
+    unsafe {
-            ::core::ptr::copy_nonoverlapping(
+      ::core::ptr::copy_nonoverlapping(
-                &x_le as *const _ as *const u8,
+        &x_le as *const _ as *const u8,
-                self.0[8..].as_mut_ptr(),
+        self.0[8..].as_mut_ptr(),
-                ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
+        ::core::mem::size_of::<<f32 as ::flatbuffers::EndianScalar>::Scalar>(),
-            );
+      );
-        }
     }
+  }
 
-    pub fn unpack(&self) -> Vec3T {
+  pub fn unpack(&self) -> Vec3T {
-        Vec3T {
+    Vec3T {
-            x: self.x(),
+      x: self.x(),
-            y: self.y(),
+      y: self.y(),
-            z: self.z(),
+      z: self.z(),
-        }
     }
+  }
 }
 
-#[derive(Debug, Clone, PartialEq)]
+#[derive(Debug, Clone, PartialEq, Default)]
 pub struct Vec3T {
-    pub x: f32,
+  pub x: f32,
-    pub y: f32,
+  pub y: f32,
-    pub z: f32,
+  pub z: f32,
 }
-impl Default for Vec3T {
+impl Vec3T {
-    fn default() -> Self {
+  pub fn pack(&self) -> Vec3 {
-        Self {
+    Vec3::new(
-            x: 0.0,
+      self.x,
-            y: 0.0,
+      self.y,
-            z: 0.0,
+      self.z,
-        }
+    )
-    }
+  }
 }
 
-impl Vec3T {
-    pub fn pack(&self) -> Vec3 {
-        Vec3::new(
-            self.x,
-            self.y,
-            self.z,
-        )
-    }
-}

samples/rust_generated/my_game/sample/weapon_generated.rs

@@ -2,172 +2,159 @@
 // @generated
 extern crate alloc;
 use super::*;
-
 pub enum WeaponOffset {}
-
 #[derive(Copy, Clone, PartialEq)]
+
 pub struct Weapon<'a> {
-    pub _tab: ::flatbuffers::Table<'a>,
+  pub _tab: ::flatbuffers::Table<'a>,
 }
 
 impl<'a> ::flatbuffers::Follow<'a> for Weapon<'a> {
-    type Inner = Weapon<'a>;
+  type Inner = Weapon<'a>;
-
+  #[inline]
-    #[inline]
+  unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
-    unsafe fn follow(buf: &'a [u8], loc: usize) -> Self::Inner {
+    Self { _tab: unsafe { ::flatbuffers::Table::new(buf, loc) } }
-        Self { _tab: unsafe { ::flatbuffers::Table::new(buf, loc) } }
+  }
-    }
 }
 
 impl<'a> Weapon<'a> {
-    pub const VT_NAME: ::flatbuffers::VOffsetT = 4;
+  pub const VT_NAME: ::flatbuffers::VOffsetT = 4;
-    pub const VT_DAMAGE: ::flatbuffers::VOffsetT = 6;
+  pub const VT_DAMAGE: ::flatbuffers::VOffsetT = 6;
 
-    pub const fn get_fully_qualified_name() -> &'static str {
+  pub const fn get_fully_qualified_name() -> &'static str {
-        "MyGame.Sample.Weapon"
+    "MyGame.Sample.Weapon"
-    }
+  }
 
-    #[inline]
+  #[inline]
-    pub unsafe fn init_from_table(table: ::flatbuffers::Table<'a>) -> Self {
+  pub unsafe fn init_from_table(table: ::flatbuffers::Table<'a>) -> Self {
-        Weapon { _tab: table }
+    Weapon { _tab: table }
-    }
+  }
+  #[allow(unused_mut)]
+  pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr, A: ::flatbuffers::Allocator + 'bldr>(
+    _fbb: &'mut_bldr mut ::flatbuffers::FlatBufferBuilder<'bldr, A>,
+    args: &'args WeaponArgs<'args>
+  ) -> ::flatbuffers::WIPOffset<Weapon<'bldr>> {
+    let mut builder = WeaponBuilder::new(_fbb);
+    if let Some(x) = args.name { builder.add_name(x); }
+    builder.add_damage(args.damage);
+    builder.finish()
+  }
 
-    #[allow(unused_mut)]
+  pub fn unpack(&self) -> WeaponT {
-    pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr, A: ::flatbuffers::Allocator + 'bldr>(
+    let name = self.name().map(|x| {
-        _fbb: &'mut_bldr mut ::flatbuffers::FlatBufferBuilder<'bldr, A>,
+      alloc::string::ToString::to_string(x)
-        args: &'args WeaponArgs<'args>
+    });
-    ) -> ::flatbuffers::WIPOffset<Weapon<'bldr>> {
+    let damage = self.damage();
-        let mut builder = WeaponBuilder::new(_fbb);
+    WeaponT {
-        if let Some(x) = args.name { builder.add_name(x); }
+      name,
-        builder.add_damage(args.damage);
+      damage,
-        builder.finish()
     }
+  }
 
-    pub fn unpack(&self) -> WeaponT {
+  #[inline]
-        let name = self.name().map(|x| {
+  pub fn name(&self) -> Option<&'a str> {
-            alloc::string::ToString::to_string(x)
+    // Safety:
-        });
+    // Created from valid Table for this object
-        let damage = self.damage();
+    // which contains a valid value in this slot
-        WeaponT {
+    unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<&str>>(Weapon::VT_NAME, None)}
-            name,
+  }
-            damage,
+  #[inline]
-        }
+  pub fn damage(&self) -> i16 {
-    }
+    // Safety:
-
+    // Created from valid Table for this object
-    #[inline]
+    // which contains a valid value in this slot
-    pub fn name(&self) -> Option<&'a str> {
+    unsafe { self._tab.get::<i16>(Weapon::VT_DAMAGE, Some(0)).unwrap()}
-        // Safety:
+  }
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<::flatbuffers::ForwardsUOffset<&str>>(Weapon::VT_NAME, None)}
-    }
-
-    #[inline]
-    pub fn damage(&self) -> i16 {
-        // Safety:
-        // Created from valid Table for this object
-        // which contains a valid value in this slot
-        unsafe { self._tab.get::<i16>(Weapon::VT_DAMAGE, Some(0)).unwrap()}
-    }
 }
 
 impl ::flatbuffers::Verifiable for Weapon<'_> {
-    #[inline]
+  #[inline]
-    fn run_verifier(
+  fn run_verifier(
-        v: &mut ::flatbuffers::Verifier, pos: usize
+    v: &mut ::flatbuffers::Verifier, pos: usize
-    ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
+  ) -> Result<(), ::flatbuffers::InvalidFlatbuffer> {
-        v.visit_table(pos)?
+    v.visit_table(pos)?
-            .visit_field::<::flatbuffers::ForwardsUOffset<&str>>("name", Self::VT_NAME, false)?
+     .visit_field::<::flatbuffers::ForwardsUOffset<&str>>("name", Self::VT_NAME, false)?
-            .visit_field::<i16>("damage", Self::VT_DAMAGE, false)?
+     .visit_field::<i16>("damage", Self::VT_DAMAGE, false)?
-            .finish();
+     .finish();
-        Ok(())
+    Ok(())
-    }
+  }
 }
-
 pub struct WeaponArgs<'a> {
     pub name: Option<::flatbuffers::WIPOffset<&'a str>>,
     pub damage: i16,
 }
-
 impl<'a> Default for WeaponArgs<'a> {
-    #[inline]
+  #[inline]
-    fn default() -> Self {
+  fn default() -> Self {
-        WeaponArgs {
+    WeaponArgs {
-            name: None,
+      name: None,
-            damage: 0,
+      damage: 0,
-        }
     }
+  }
 }
 
 pub struct WeaponBuilder<'a: 'b, 'b, A: ::flatbuffers::Allocator + 'a> {
-    fbb_: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>,
+  fbb_: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>,
-    start_: ::flatbuffers::WIPOffset<::flatbuffers::TableUnfinishedWIPOffset>,
+  start_: ::flatbuffers::WIPOffset<::flatbuffers::TableUnfinishedWIPOffset>,
 }
-
 impl<'a: 'b, 'b, A: ::flatbuffers::Allocator + 'a> WeaponBuilder<'a, 'b, A> {
-    #[inline]
+  #[inline]
-    pub fn add_name(&mut self, name: ::flatbuffers::WIPOffset<&'b  str>) {
+  pub fn add_name(&mut self, name: ::flatbuffers::WIPOffset<&'b  str>) {
-        self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Weapon::VT_NAME, name);
+    self.fbb_.push_slot_always::<::flatbuffers::WIPOffset<_>>(Weapon::VT_NAME, name);
-    }
+  }
-
+  #[inline]
-    #[inline]
+  pub fn add_damage(&mut self, damage: i16) {
-    pub fn add_damage(&mut self, damage: i16) {
+    self.fbb_.push_slot::<i16>(Weapon::VT_DAMAGE, damage, 0);
-        self.fbb_.push_slot::<i16>(Weapon::VT_DAMAGE, damage, 0);
+  }
-    }
+  #[inline]
-
+  pub fn new(_fbb: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>) -> WeaponBuilder<'a, 'b, A> {
-    #[inline]
+    let start = _fbb.start_table();
-    pub fn new(_fbb: &'b mut ::flatbuffers::FlatBufferBuilder<'a, A>) -> WeaponBuilder<'a, 'b, A> {
+    WeaponBuilder {
-        let start = _fbb.start_table();
+      fbb_: _fbb,
-        WeaponBuilder {
+      start_: start,
-            fbb_: _fbb,
-            start_: start,
-        }
-    }
-
-    #[inline]
-    pub fn finish(self) -> ::flatbuffers::WIPOffset<Weapon<'a>> {
-        let o = self.fbb_.end_table(self.start_);
-        ::flatbuffers::WIPOffset::new(o.value())
     }
+  }
+  #[inline]
+  pub fn finish(self) -> ::flatbuffers::WIPOffset<Weapon<'a>> {
+    let o = self.fbb_.end_table(self.start_);
+    ::flatbuffers::WIPOffset::new(o.value())
+  }
 }
 
 impl ::core::fmt::Debug for Weapon<'_> {
-    fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
+  fn fmt(&self, f: &mut ::core::fmt::Formatter<'_>) -> ::core::fmt::Result {
-        let mut ds = f.debug_struct("Weapon");
+    let mut ds = f.debug_struct("Weapon");
-        ds.field("name", &self.name());
+      ds.field("name", &self.name());
-        ds.field("damage", &self.damage());
+      ds.field("damage", &self.damage());
-        ds.finish()
+      ds.finish()
-    }
+  }
 }
-
 #[non_exhaustive]
 #[derive(Debug, Clone, PartialEq)]
 pub struct WeaponT {
-    pub name: Option<alloc::string::String>,
+  pub name: Option<alloc::string::String>,
-    pub damage: i16,
+  pub damage: i16,
 }
-
 impl Default for WeaponT {
-    fn default() -> Self {
+  fn default() -> Self {
-        Self {
+    Self {
-            name: None,
+      name: None,
-            damage: 0,
+      damage: 0,
-        }
     }
+  }
 }
-
 impl WeaponT {
-    pub fn pack<'b, A: ::flatbuffers::Allocator + 'b>(
+  pub fn pack<'b, A: ::flatbuffers::Allocator + 'b>(
-        &self,
+    &self,
-        _fbb: &mut ::flatbuffers::FlatBufferBuilder<'b, A>
+    _fbb: &mut ::flatbuffers::FlatBufferBuilder<'b, A>
-    ) -> ::flatbuffers::WIPOffset<Weapon<'b>> {
+  ) -> ::flatbuffers::WIPOffset<Weapon<'b>> {
-        let name = self.name.as_ref().map(|x|{
+    let name = self.name.as_ref().map(|x|{
-            _fbb.create_string(x)
+      _fbb.create_string(x)
-        });
+    });
-        let damage = self.damage;
+    let damage = self.damage;
-        Weapon::create(_fbb, &WeaponArgs{
+    Weapon::create(_fbb, &WeaponArgs{
-            name,
+      name,
-            damage,
+      damage,
-        })
+    })
-    }
+  }
 }

scripts/generate_code.py

@@ -251,6 +251,21 @@ flatc(
     schema="vector_table_naked_ptr.fbs",
 )
 
+flatc(
+    [
+        "--cpp",
+        "--gen-compare",
+        "--gen-mutable",
+        "--gen-object-api",
+        "--reflect-names",
+        "--cpp-include",
+        "test_vector_type.h",
+        "--cpp-vector-type",
+        "::flatbuffers::tests::CustomVector",
+    ],
+    schema="cpp_vector_type.fbs",
+)
+
 flatc(
     BASE_OPTS + CPP_OPTS + CS_OPTS + JAVA_OPTS + KOTLIN_OPTS + PHP_OPTS,
     prefix="union_vector",
@@ -394,11 +409,6 @@ flatc(
     schema="native_inline_table_test.fbs",
 )
 
-flatc(
-    ["--cpp", "--gen-compare", "--gen-mutable", "--gen-object-api", "--reflect-names"],
-    schema="cross_namespace_pack_test.fbs",
-)
-
 flatc(
     RUST_OPTS,
     prefix="arrays_test",
@@ -422,11 +432,6 @@ flatc(
     schema="nested_union_test.fbs",
 )
 
-flatc(
-    ["--python", "--gen-object-api"],
-    schema="union_name_test.fbs",
-)
-
 flatc(
     NO_INCL_OPTS + CPP_OPTS,
     schema="default_vectors_strings_test.fbs",
@@ -527,13 +532,6 @@ flatc(
     cwd=swift_code_gen,
 )
 
-flatc(
-    SWIFT_OPTS_CODE_GEN + BASE_OPTS,
-    schema="empty_vtable.fbs",
-    cwd=swift_code_gen,
-    prefix="../../Tests/Flatbuffers/",
-)
-
 # Swift Wasm Tests
 swift_Wasm_prefix = "swift/Wasm.tests/Tests/FlatBuffers.Test.Swift.WasmTests"
 flatc(

scripts/generate_grpc_examples.py

@@ -20,7 +20,6 @@ from util import flatc, root_path
 grpc_examples_path = Path(root_path, "grpc/examples")
 
 greeter_schema = str(Path(grpc_examples_path, "greeter.fbs"))
-greeter_schema_v2 = str(Path(grpc_examples_path, "greeter_v2.fbs"))
 
 COMMON_ARGS = [
     "--grpc",
@@ -55,8 +54,8 @@ def GenerateGRPCExamples():
           "--swift",
           "--gen-json-emit",
       ],
-      schema=greeter_schema_v2,
+      schema=greeter_schema,
-      cwd=Path(grpc_examples_path, "swift/Greeter/Sources/Models"),
+      cwd=Path(grpc_examples_path, "swift/Greeter/Sources/Model"),
   )
 
   flatc(

src/binary_annotator.cpp

@@ -126,7 +126,9 @@ static BinarySection GenerateMissingSection(const uint64_t offset,
 std::map<uint64_t, BinarySection> BinaryAnnotator::Annotate() {
   if (bfbs_ != nullptr && bfbs_length_ != 0) {
     flatbuffers::Verifier verifier(bfbs_, static_cast<size_t>(bfbs_length_));
-    if (!reflection::VerifySchemaBuffer(verifier)) {
+    if ((is_size_prefixed_ &&
+         !reflection::VerifySizePrefixedSchemaBuffer(verifier)) ||
+        !reflection::VerifySchemaBuffer(verifier)) {
       return {};
     }
   }

src/flatc.cpp

@@ -145,6 +145,12 @@ const static FlatCOption flatc_options[] = {
     {"", "cpp-str-flex-ctor", "",
      "Don't construct custom string types by passing std::string from "
      "Flatbuffers, but (char* + length)."},
+    {"", "cpp-vector-type", "T",
+     "Set object API vector type (default std::vector). T must be a "
+     "template taking a single element type argument and support "
+     "resize(), reserve(), size(), data(), operator[], emplace_back(), and "
+     "begin()/end(). The custom type also needs its own header to be "
+     "included via --cpp-include."},
     {"", "cpp-field-case-style", "STYLE",
      "Generate C++ fields using selected case style. Supported STYLE values: * "
      "'unchanged' - leave unchanged (default) * 'upper' - schema snake_case "
@@ -545,6 +551,9 @@ FlatCOptions FlatCompiler::ParseFromCommandLineArguments(int argc,
         opts.cpp_object_api_string_type = argv[argi];
       } else if (arg == "--cpp-str-flex-ctor") {
         opts.cpp_object_api_string_flexible_constructor = true;
+      } else if (arg == "--cpp-vector-type") {
+        if (++argi >= argc) Error("missing type following: " + arg, true);
+        opts.cpp_object_api_vector_type = argv[argi];
       } else if (arg == "--no-cpp-direct-copy") {
         opts.cpp_direct_copy = false;
       } else if (arg == "--cpp-field-case-style") {

src/idl_gen_cpp.cpp

@@ -257,6 +257,19 @@ class CppGenerator : public BaseGenerator {
     code_ += "              FLATBUFFERS_VERSION_REVISION == " +
              std::to_string(FLATBUFFERS_VERSION_REVISION) + ",";
     code_ += "             \"Non-compatible flatbuffers version included\");";
+
+    code_ += "// Ensure the included flatbuffers.h is Bigfoot's fork - stock";
+    code_ += "// flatbuffers (or a differently versioned Bigfoot fork) is not compatible.";
+    code_ += "#ifndef FLATBUFFERS_BIGFOOT_VERSION";
+    code_ +=
+        "#error \"This file requires Bigfoot's flatbuffers fork - stock "
+        "flatbuffers is not compatible\"";
+    code_ += "#endif";
+    code_ += "static_assert(FLATBUFFERS_BIGFOOT_VERSION == " +
+             std::to_string(FLATBUFFERS_BIGFOOT_VERSION) + ",";
+    code_ +=
+        "             \"Non-compatible Bigfoot flatbuffers fork version "
+        "included\");";
   }
 
   void GenIncludeDependencies() {
@@ -529,6 +542,8 @@ class CppGenerator : public BaseGenerator {
       code_ += "";
     }
 
+    GenerateBigfootRefForwardDecls();
+
     // Generate preablmle code for mini reflection.
     if (opts_.mini_reflect != IDLOptions::kNone) {
       // To break cyclic dependencies, first pre-declare all tables/structs.
@@ -758,6 +773,8 @@ class CppGenerator : public BaseGenerator {
 
     if (cur_name_space_) SetNameSpace(nullptr);
 
+    GenerateBigfootRefImpls();
+
     // Close the include guard.
     code_ += "#endif  // " + include_guard;
 
@@ -892,6 +909,24 @@ class CppGenerator : public BaseGenerator {
     return opts_.gen_nullable ? " _Nullable " : "";
   }
 
+  // A field's `native_type`/`native_type_pack_name` normally come from the
+  // referenced struct's own declaration. A field can override both (see
+  // `bigfoot_ref` in idl_parser.cpp, which synthesizes these two attributes
+  // directly on the field) to instantiate a templated native type
+  // differently per field.
+  static const Value* EffectiveNativeType(const FieldDef& field,
+                                          const StructDef& struct_def) {
+    if (const auto v = field.attributes.Lookup("native_type")) return v;
+    return struct_def.attributes.Lookup("native_type");
+  }
+
+  static const Value* EffectiveNativeTypePackName(const FieldDef& field,
+                                                   const StructDef& struct_def) {
+    if (const auto v = field.attributes.Lookup("native_type_pack_name"))
+      return v;
+    return struct_def.attributes.Lookup("native_type_pack_name");
+  }
+
   static std::string NativeName(const std::string& name, const StructDef* sd,
                                 const IDLOptions& opts) {
     // If the table is a native_type, return the native_type name.
@@ -937,6 +972,23 @@ class CppGenerator : public BaseGenerator {
                       "std::string";  // Only for custom string types.
   }
 
+  const std::string NativeVectorType(const FieldDef* field) {
+    auto attr = field ? field->attributes.Lookup("cpp_vector_type") : nullptr;
+    auto& ret = attr ? attr->constant : opts_.cpp_object_api_vector_type;
+    if (ret.empty()) {
+      return "std::vector";
+    }
+    return ret;
+  }
+
+  // True if this field's native vector uses a custom (non-std::vector)
+  // container, meaning generated Pack() code can't rely on the std::vector
+  // specific CreateVector*() overloads and must fall back to data()/size()
+  // or per-element construction instead.
+  bool UsesCustomVectorType(const FieldDef* field) {
+    return NativeVectorType(field) != "std::vector";
+  }
+
   std::string GenTypeNativePtr(const std::string& type, const FieldDef* field,
                                bool is_constructor) {
     auto& ptr_type = PtrType(field);
@@ -974,20 +1026,21 @@ class CppGenerator : public BaseGenerator {
       case BASE_TYPE_VECTOR64:
       case BASE_TYPE_VECTOR: {
         const auto type_name = GenTypeNative(type.VectorType(), true, field);
-        if (type.struct_def &&
+        const auto vector_type = NativeVectorType(&field);
+        if (vector_type == "std::vector" && type.struct_def &&
             type.struct_def->attributes.Lookup("native_custom_alloc")) {
           auto native_custom_alloc =
               type.struct_def->attributes.Lookup("native_custom_alloc");
           return "std::vector<" + type_name + "," +
                  native_custom_alloc->constant + "<" + type_name + ">>";
         } else {
-          return "std::vector<" + type_name + ">";
+          return vector_type + "<" + type_name + ">";
         }
       }
       case BASE_TYPE_STRUCT: {
         auto type_name = WrapInNameSpace(*type.struct_def);
         if (IsStruct(type)) {
-          auto native_type = type.struct_def->attributes.Lookup("native_type");
+          auto native_type = EffectiveNativeType(field, *type.struct_def);
           if (native_type) {
             type_name = native_type->constant;
           }
@@ -1979,7 +2032,7 @@ class CppGenerator : public BaseGenerator {
       const std::string& full_type =
           (cpp_type
                ? (IsVector(field.value.type)
-                      ? "std::vector<" +
+                      ? NativeVectorType(&field) + "<" +
                             GenTypeNativePtr(cpp_type->constant, &field,
                                              false) +
                             "> "
@@ -2779,17 +2832,15 @@ class CppGenerator : public BaseGenerator {
         get_call += ">(" + offset_str + ");";
         code_ += get_call;
       } else if (IsString(type) && field.value.constant != "0") {
-        std::string escaped;
+        // TODO: Add logic to always convert the string to a valid C++ string
-        flatbuffers::EscapeString(field.value.constant.c_str(),
+        // literal by handling string escapes.
-                                  field.value.constant.length(), &escaped,
-                                  true, false);
         code_ += "    auto* ptr = {{FIELD_VALUE}};";
         code_ += "    if (ptr) return ptr;";
         code_ += "    static const struct { uint32_t len; const char s[" +
                  NumToString(field.value.constant.length() + 1) +
                  "]; } bfbs_string = { " +
-                 NumToString(field.value.constant.length()) + ", " +
+                 NumToString(field.value.constant.length()) + ", \"" +
-                 escaped + " };";
+                 field.value.constant + "\" };";
         code_ +=
             "    return reinterpret_cast<const ::flatbuffers::String "
             " *>(&bfbs_string);";
@@ -3419,15 +3470,11 @@ class CppGenerator : public BaseGenerator {
             code_.SetValue("CREATE_STRING", "CreateSharedString");
           }
           if (field->value.constant != "0") {
-            std::string escaped;
-            flatbuffers::EscapeString(field->value.constant.c_str(),
-                                      field->value.constant.length(), &escaped,
-                                      true, false);
             code_ +=
                 "  auto {{FIELD_NAME}}__ = {{FIELD_NAME}} ? "
                 "_fbb.{{CREATE_STRING}}({{FIELD_NAME}}) : "
-                "_fbb.{{CREATE_STRING}}(" +
+                "_fbb.{{CREATE_STRING}}(\"" +
-                escaped + ");";
+                field->value.constant + "\");";
           } else {
             code_ +=
                 "  auto {{FIELD_NAME}}__ = {{FIELD_NAME}} ? "
@@ -3521,11 +3568,11 @@ class CppGenerator : public BaseGenerator {
       }
       case BASE_TYPE_STRUCT: {
         if (IsStruct(type)) {
-          const auto& struct_attrs = type.struct_def->attributes;
+          const auto native_type = EffectiveNativeType(afield, *type.struct_def);
-          const auto native_type = struct_attrs.Lookup("native_type");
           if (native_type) {
             std::string unpack_call = "::flatbuffers::UnPack";
-            const auto pack_name = struct_attrs.Lookup("native_type_pack_name");
+            const auto pack_name =
+                EffectiveNativeTypePackName(afield, *type.struct_def);
             if (pack_name) {
               unpack_call += pack_name->constant;
             }
@@ -3778,13 +3825,22 @@ class CppGenerator : public BaseGenerator {
       case BASE_TYPE_VECTOR64:
       case BASE_TYPE_VECTOR: {
         auto vector_type = field.value.type.VectorType();
+        // If the field's native container isn't std::vector, the
+        // std::vector-specific CreateVector*() overloads in
+        // flatbuffer_builder.h can't be used directly. Fall back to
+        // data()/size()-based overloads (which only require the container to
+        // support those, like std::vector does) or, where no such overload
+        // exists, to the same per-element lambda serialization already used
+        // above for custom string/table/union element types.
+        const bool custom_vector = UsesCustomVectorType(&field);
         switch (vector_type.base_type) {
           case BASE_TYPE_STRING: {
-            if (NativeString(&field) == "std::string") {
+            if (!custom_vector && NativeString(&field) == "std::string") {
               code += "_fbb.CreateVectorOfStrings(" + value + ")";
             } else {
               // Use by-function serialization to emulate
-              // CreateVectorOfStrings(); this works also with non-std strings.
+              // CreateVectorOfStrings(); this works also with non-std strings
+              // and non-std::vector vector types.
               code +=
                   "_fbb.CreateVector<::flatbuffers::Offset<::flatbuffers::"
                   "String>>"
@@ -3799,20 +3855,37 @@ class CppGenerator : public BaseGenerator {
           }
           case BASE_TYPE_STRUCT: {
             if (IsStruct(vector_type)) {
-              const auto& struct_attrs =
+              const auto native_type =
-                  field.value.type.struct_def->attributes;
+                  EffectiveNativeType(field, *field.value.type.struct_def);
-              const auto native_type = struct_attrs.Lookup("native_type");
               if (native_type) {
                 code += "_fbb.CreateVectorOfNativeStructs<";
                 code += WrapInNameSpace(*vector_type.struct_def) + ", " +
                         native_type->constant + ">";
-                code += "(" + value;
+                if (custom_vector) {
-                const auto pack_name =
+                  code += "(" + value + ".data(), " + value + ".size()";
-                    struct_attrs.Lookup("native_type_pack_name");
+                } else {
+                  code += "(" + value;
+                }
+                const auto pack_name = EffectiveNativeTypePackName(
+                    field, *field.value.type.struct_def);
                 if (pack_name) {
                   code += ", ::flatbuffers::Pack" + pack_name->constant;
                 }
                 code += ")";
+              } else if (custom_vector &&
+                         (field.value.type.base_type == BASE_TYPE_VECTOR64 ||
+                          field.offset64)) {
+                // CreateVectorOfStructs64() (and CreateVectorOfStructs64<V>()
+                // for offset64) only accept a std::vector; use the
+                // equivalent explicit-template raw pointer overload instead.
+                const auto struct_type = WrapInNameSpace(*vector_type.struct_def);
+                const auto vector_t = field.value.type.base_type ==
+                                              BASE_TYPE_VECTOR64
+                                          ? "::flatbuffers::Vector64"
+                                          : "::flatbuffers::Vector";
+                code += "_fbb.CreateVectorOfStructs<" + struct_type +
+                        ", ::flatbuffers::Offset64, " + vector_t + ">(" +
+                        value + ".data(), " + value + ".size())";
               } else {
                 // If the field uses 64-bit addressing, create a 64-bit vector.
                 if (field.value.type.base_type == BASE_TYPE_VECTOR64) {
@@ -3824,16 +3897,18 @@ class CppGenerator : public BaseGenerator {
                     code += "64<::flatbuffers::Vector>";
                   }
                 }
-                code += "(" + value + ")";
+                if (custom_vector) {
+                  code += "(" + value + ".data(), " + value + ".size())";
+                } else {
+                  code += "(" + value + ")";
+                }
               }
             } else {
               code += "_fbb.CreateVector<::flatbuffers::Offset<";
               code += WrapInNameSpace(*vector_type.struct_def) + ">> ";
               code += "(" + value + ".size(), ";
               code += "[](size_t i, _VectorArgs *__va) { ";
-              code += "return " +
+              code += "return Create" + vector_type.struct_def->name;
-                      WrapInNameSpace(vector_type.struct_def->defined_namespace,
-                                      "Create" + vector_type.struct_def->name);
               code += "(*__va->__fbb, ";
               if (field.native_inline) {
                 code += "&(__va->_" + value + "[i])";
@@ -3845,7 +3920,17 @@ class CppGenerator : public BaseGenerator {
             break;
           }
           case BASE_TYPE_BOOL: {
-            code += "_fbb.CreateVector(" + value + ")";
+            if (custom_vector) {
+              // Vectors of bool are always stored on the wire as uint8_t
+              // (there is no Vector<bool>); CreateVectorScalarCast() does
+              // the per-element bool->uint8_t cast from a raw data()/size()
+              // pointer pair, avoiding any dependency on std::vector<bool>'s
+              // bit-packed specialization.
+              code += "_fbb.CreateVectorScalarCast<uint8_t>(" + value +
+                      ".data(), " + value + ".size())";
+            } else {
+              code += "_fbb.CreateVector(" + value + ")";
+            }
             break;
           }
           case BASE_TYPE_UNION: {
@@ -3881,9 +3966,11 @@ class CppGenerator : public BaseGenerator {
               // the underlying storage type (eg. uint8_t).
               const auto basetype = GenTypeBasic(
                   field.value.type.enum_def->underlying_type, false);
-              code += "_fbb.CreateVectorScalarCast<" + basetype +
+              const std::string data_ptr =
-                      ">(::flatbuffers::data(" + value + "), " + value +
+                  custom_vector ? value + ".data()"
-                      ".size())";
+                                : "::flatbuffers::data(" + value + ")";
+              code += "_fbb.CreateVectorScalarCast<" + basetype + ">(" +
+                      data_ptr + ", " + value + ".size())";
             } else if (field.attributes.Lookup("cpp_type")) {
               auto type = GenTypeBasic(vector_type, false);
               code += "_fbb.CreateVector<" + type + ">(" + value + ".size(), ";
@@ -3892,6 +3979,27 @@ class CppGenerator : public BaseGenerator {
               code += "static_cast<" + type + ">((*__va->__rehasher)";
               code += "(__va->_" + value + "[i]" + GenPtrGet(field) + ")) : 0";
               code += "; }, &_va )";
+            } else if (custom_vector) {
+              // Explicitly specify the element type so it can be deduced
+              // from a raw data()/size() pointer pair instead of relying on
+              // the std::vector<T, Alloc>-specific CreateVector overloads.
+              // Use the user-facing type (matches what GenTypeNative()
+              // stores in the native vector, e.g. the enum type itself for
+              // scoped-enum fields) so it matches data()'s pointee type.
+              auto type = GenTypeBasic(vector_type, true);
+              if (field.value.type.base_type == BASE_TYPE_VECTOR64) {
+                code += "_fbb.CreateVector<" + type +
+                        ", ::flatbuffers::Offset64, ::flatbuffers::Vector64>(" +
+                        value + ".data(), " + value + ".size())";
+              } else if (field.offset64) {
+                // This is normal 32-bit vector, with 64-bit addressing.
+                code += "_fbb.CreateVector<" + type +
+                        ", ::flatbuffers::Offset64, ::flatbuffers::Vector>(" +
+                        value + ".data(), " + value + ".size())";
+              } else {
+                code += "_fbb.CreateVector(" + value + ".data(), " + value +
+                        ".size())";
+              }
             } else {
               // If the field uses 64-bit addressing, create a 64-bit vector.
               if (field.value.type.base_type == BASE_TYPE_VECTOR64) {
@@ -3925,12 +4033,12 @@ class CppGenerator : public BaseGenerator {
       }
       case BASE_TYPE_STRUCT: {
         if (IsStruct(field.value.type)) {
-          const auto& struct_attribs = field.value.type.struct_def->attributes;
+          const auto native_type =
-          const auto native_type = struct_attribs.Lookup("native_type");
+              EffectiveNativeType(field, *field.value.type.struct_def);
           if (native_type && field.native_inline) {
             code += "::flatbuffers::Pack";
             const auto pack_name =
-                struct_attribs.Lookup("native_type_pack_name");
+                EffectiveNativeTypePackName(field, *field.value.type.struct_def);
             if (pack_name) {
               code += pack_name->constant;
             }
@@ -3946,10 +4054,8 @@ class CppGenerator : public BaseGenerator {
           }
         } else {
           // _o->field ? CreateT(_fbb, _o->field.get(), _rehasher);
-          const auto& nested_struct = *field.value.type.struct_def;
+          const std::string& type = field.value.type.struct_def->name;
-          code += value + " ? " +
+          code += value + " ? Create" + type;
-                  WrapInNameSpace(nested_struct.defined_namespace,
-                                  "Create" + nested_struct.name);
           code += "(_fbb, " + value;
           if (!field.native_inline) code += GenPtrGet(field);
           code += ", _rehasher) : 0";
@@ -4097,8 +4203,7 @@ class CppGenerator : public BaseGenerator {
           if (field->value.type.base_type == BASE_TYPE_STRUCT) {
             if (IsStruct(field->value.type)) {
               auto native_type =
-                  field->value.type.struct_def->attributes.Lookup(
+                  EffectiveNativeType(*field, *field->value.type.struct_def);
-                      "native_type");
               auto native_inline = field->attributes.Lookup("native_inline");
               if (native_type) {
                 pass_by_address = true;
@@ -4453,6 +4558,141 @@ class CppGenerator : public BaseGenerator {
     }
   }
 
+  // Split a "::"-qualified C++ name into namespace components + final name.
+  static std::vector<std::string> SplitQualifiedName(const std::string& qualified) {
+    std::vector<std::string> parts;
+    size_t start = qualified.compare(0, 2, "::") == 0 ? 2 : 0;
+    for (;;) {
+      const auto pos = qualified.find("::", start);
+      if (pos == std::string::npos) {
+        parts.push_back(qualified.substr(start));
+        break;
+      }
+      parts.push_back(qualified.substr(start, pos - start));
+      start = pos + 2;
+    }
+    return parts;
+  }
+
+  // Bigfoot: for every field annotated `bigfoot_ref: "::Ns::AssetX"` (see
+  // idl_parser.cpp), forward-declare AssetX plus prototype the Pack/UnPack
+  // functions for its reference wrapper. Called early (alongside the
+  // regular struct/table forward declarations), since these prototypes -
+  // unlike their definitions in GenerateBigfootRefImpls() - only need
+  // AssetX and the wrapper struct forward-declared, not complete.
+  void GenerateBigfootRefForwardDecls() {
+    std::unordered_set<std::string> declared_assets;
+    for (const auto& struct_def : parser_.structs_.vec) {
+      if (struct_def->generated) continue;
+      for (const auto& field : struct_def->fields.vec) {
+        const auto* bigfoot_ref = field->attributes.Lookup("bigfoot_ref");
+        if (!bigfoot_ref) continue;
+        if (!declared_assets.insert(bigfoot_ref->constant).second) continue;
+
+        auto parts = SplitQualifiedName(bigfoot_ref->constant);
+        const std::string class_name = parts.back();
+        parts.pop_back();
+
+        SetNameSpace(nullptr);
+        for (const auto& ns_part : parts) code_ += "namespace " + ns_part + " {";
+        code_ += "class " + class_name + ";";
+        for (auto it = parts.rbegin(); it != parts.rend(); ++it)
+          code_ += "}  // namespace " + *it;
+        code_ += "";
+      }
+    }
+
+    std::unordered_set<std::string> declared_pairs;
+    bool opened_flatbuffers_ns = false;
+    for (const auto& struct_def : parser_.structs_.vec) {
+      if (struct_def->generated) continue;
+      for (const auto& field : struct_def->fields.vec) {
+        const auto* bigfoot_ref = field->attributes.Lookup("bigfoot_ref");
+        if (!bigfoot_ref) continue;
+
+        const auto* pack_name = field->attributes.Lookup("native_type_pack_name");
+        if (!declared_pairs.insert(pack_name->constant).second) continue;
+
+        if (!opened_flatbuffers_ns) {
+          SetNameSpace(nullptr);
+          code_ += "namespace flatbuffers {";
+          opened_flatbuffers_ns = true;
+        }
+
+        const auto* native_type = field->attributes.Lookup("native_type");
+        const std::string flat_wrapper =
+            WrapInNameSpace(*field->value.type.struct_def);
+
+        code_ += flat_wrapper + " Pack" + pack_name->constant +
+                 "(const " + native_type->constant + "& p_asset);";
+        code_ += native_type->constant + " UnPack" + pack_name->constant +
+                 "(const " + flat_wrapper + "& p_asset);";
+      }
+    }
+
+    if (opened_flatbuffers_ns) {
+      code_ += "}  // namespace flatbuffers";
+      code_ += "";
+    }
+  }
+
+  // Bigfoot: defines the Pack/UnPack functions prototyped by
+  // GenerateBigfootRefForwardDecls(). Called late (after every struct/table
+  // in this file has been fully defined), since a wrapper struct (e.g.
+  // HardReference/SoftReference) may be defined in this same generated file
+  // rather than one it includes, and these definitions construct it by
+  // value - they need it complete, unlike the earlier prototypes.
+  void GenerateBigfootRefImpls() {
+    std::unordered_set<std::string> declared_pairs;
+    bool opened_flatbuffers_ns = false;
+    for (const auto& struct_def : parser_.structs_.vec) {
+      if (struct_def->generated) continue;
+      for (const auto& field : struct_def->fields.vec) {
+        const auto* bigfoot_ref = field->attributes.Lookup("bigfoot_ref");
+        if (!bigfoot_ref) continue;
+
+        const auto* pack_name = field->attributes.Lookup("native_type_pack_name");
+        if (!declared_pairs.insert(pack_name->constant).second) continue;
+
+        if (!opened_flatbuffers_ns) {
+          SetNameSpace(nullptr);
+          code_ += "namespace flatbuffers {";
+          opened_flatbuffers_ns = true;
+        }
+
+        const auto* native_type = field->attributes.Lookup("native_type");
+        const std::string flat_wrapper =
+            WrapInNameSpace(*field->value.type.struct_def);
+
+        // A single translation unit can end up including two different
+        // generated headers that both reference the same asset type (e.g.
+        // AssetB references AssetA, and some other TU includes both
+        // AssetA_generated.hpp and AssetB_generated.hpp directly) - each
+        // would otherwise emit an identical, independent definition of these
+        // functions. `inline` only allows identical definitions to repeat
+        // across *different* translation units, not twice within the same
+        // one, so guard against that with a plain macro guard.
+        std::string guard_name = pack_name->constant;
+        std::transform(guard_name.begin(), guard_name.end(), guard_name.begin(), CharToUpper);
+        const std::string guard = "FLATBUFFERS_BIGFOOT_REF_" + guard_name;
+        code_ += "#ifndef " + guard;
+        code_ += "#define " + guard;
+        code_ += "inline " + flat_wrapper + " Pack" + pack_name->constant +
+                 "(const " + native_type->constant +
+                 "& p_asset) { return {Pack(p_asset.GetUUID())}; }";
+        code_ += "inline " + native_type->constant + " UnPack" +
+                 pack_name->constant + "(const " + flat_wrapper +
+                 "& p_asset) { return {UnPack(p_asset.uuid())}; }";
+        code_ += "#endif  // " + guard;
+      }
+    }
+
+    if (opened_flatbuffers_ns) {
+      code_ += "}  // namespace flatbuffers";
+      code_ += "";
+    }
+  }
+
   // Set up the correct namespace. Only open a namespace if the existing one is
   // different (closing/opening only what is necessary).
   //

src/idl_gen_dart.cpp

@@ -654,15 +654,34 @@ class DartGenerator : public BaseGenerator {
 
   std::string NamespaceAliasFromUnionType(Namespace* root_namespace,
                                           const Type& type) {
-    const Namespace& type_namespace = *type.struct_def->defined_namespace;
+    const std::vector<std::string> qualified_name_parts =
-    if (root_namespace->components == type_namespace.components) {
+        type.struct_def->defined_namespace->components;
+    if (std::equal(root_namespace->components.begin(),
+                   root_namespace->components.end(),
+                   qualified_name_parts.begin())) {
       return namer_.Type(*type.struct_def);
     }
 
-    const std::string ns = namer_.Namespace(type_namespace);
+    std::string ns;
-    return ns.empty()
+
-               ? namer_.Type(*type.struct_def)
+    for (auto it = qualified_name_parts.begin();
-               : ImportAliasName(ns) + "." + namer_.Type(*type.struct_def);
+         it != qualified_name_parts.end(); ++it) {
+      auto& part = *it;
+
+      for (size_t i = 0; i < part.length(); i++) {
+        if (i && !isdigit(part[i]) && part[i] == CharToUpper(part[i])) {
+          ns += "_";
+          ns += CharToLower(part[i]);
+        } else {
+          ns += CharToLower(part[i]);
+        }
+      }
+      if (it != qualified_name_parts.end() - 1) {
+        ns += "_";
+      }
+    }
+
+    return ns + "." + namer_.Type(*type.struct_def);
   }
 
   void GenImplementationGetters(

src/idl_gen_fbs.cpp

@@ -368,17 +368,7 @@ static std::string GenerateFBS(const Parser& parser,
       if (field.value.type.base_type != BASE_TYPE_UTYPE) {
         GenComment(field.doc_comment, &schema, nullptr, "  ");
         schema += "  " + field.name + ":" + GenType(field.value.type);
-        if (field.value.constant != "0") {
+        if (field.value.constant != "0") schema += " = " + field.value.constant;
-          if (IsString(field.value.type)) {
-            std::string escaped;
-            flatbuffers::EscapeString(field.value.constant.c_str(),
-                                      field.value.constant.length(), &escaped,
-                                      true, false);
-            schema += " = " + escaped;
-          } else {
-            schema += " = " + field.value.constant;
-          }
-        }
         std::vector<std::string> attributes;
         if (field.IsRequired()) attributes.push_back("required");
         if (field.key) attributes.push_back("key");

src/idl_gen_python.cpp

@@ -1528,7 +1528,7 @@ class PythonGenerator : public BaseGenerator {
       } else {
         code += "def Create" + field_method + "Vector(builder, data):\n";
       }
-      code += Indent + "return " + helper_name + "(builder, data)\n\n";
+      code += Indent + helper_name + "(builder, data)\n\n";
     }
   }
 
@@ -2095,12 +2095,12 @@ class PythonGenerator : public BaseGenerator {
     const auto field_method = namer_.Method(field);
     const auto struct_var = namer_.Variable(struct_def);
     const EnumDef& enum_def = *field.value.type.enum_def;
-    auto union_fn = namer_.Function(enum_def);
+    auto union_type = namer_.Type(enum_def);
 
     if (parser_.opts.include_dependence_headers) {
-      union_fn = namer_.NamespacedType(enum_def) + "." + union_fn;
+      union_type = namer_.NamespacedType(enum_def) + "." + union_type;
     }
-    code += GenIndents(2) + "self." + field_field + " = " + union_fn +
+    code += GenIndents(2) + "self." + field_field + " = " + union_type +
             "Creator(" + "self." + field_field + "Type, " + struct_var + "." +
             field_method + "())";
   }
@@ -2471,7 +2471,7 @@ class PythonGenerator : public BaseGenerator {
     } else {
       GenPackForScalarVectorFieldHelper(struct_def, field, code_prefix_ptr, 3);
       code_prefix += "(self." + field_field + "[i])";
-      code_prefix += GenIndents(3) + field_field + " = builder.EndVector()";
+      code_prefix += GenIndents(4) + field_field + " = builder.EndVector()";
     }
   }
 

src/idl_gen_swift.cpp

@@ -164,14 +164,15 @@ class SwiftGenerator : public BaseGenerator {
   bool generate() {
     code_.Clear();
     code_.SetValue("ACCESS", "_accessor");
-    code_.SetValue("TABLEOFFSET", "VT");
+    code_.SetValue("TABLEOFFSET", "VTOFFSET");
     code_ += "// " + std::string(FlatBuffersGeneratedWarning());
     code_ += "// swiftlint:disable all";
     code_ += "// swiftformat:disable all\n";
 
     if (parser_.opts.include_dependence_headers || parser_.opts.generate_all) {
-      code_.SetValue("IMPLEMENTONLY",
+      code_.SetValue("IMPLEMENTONLY", parser_.opts.swift_implementation_only
-                     parser_.opts.swift_implementation_only ? "internal " : "");
+                                          ? "@_implementationOnly "
+                                          : "");
       code_ += "#if canImport(Common)";
       code_ += "{{IMPLEMENTONLY}}import Common";
       code_ += "#endif";
@@ -281,16 +282,9 @@ class SwiftGenerator : public BaseGenerator {
             NumToString(field.value.type.VectorType().fixed_length);
         code_.SetValue("FIXEDLENGTH", fixed_length);
 
-        std::string vector_base_type;
+        const auto vector_base_type = IsStruct(field.value.type.VectorType())
-        if (IsStruct(field.value.type.VectorType())) {
+                                          ? (type + "()")
-          vector_base_type = type + "()";
+                                          : SwiftConstant(field);
-        } else if (IsBool(field.value.type.VectorType().base_type)) {
-          vector_base_type = "false";
-        } else if (IsFloat(field.value.type.VectorType().base_type)) {
-          vector_base_type = "0.0";
-        } else {
-          vector_base_type = SwiftConstant(field);
-        }
         code_ += "private var _{{FIELDVAR}}: InlineArray<{{FIXEDLENGTH}}, " +
                  valueType + ">";
 
@@ -524,7 +518,7 @@ class SwiftGenerator : public BaseGenerator {
   void GenTableAccessors(const StructDef& struct_def) {
     // Generate field id constants.
     if (struct_def.fields.vec.size() > 0) {
-      code_ += "private struct {{TABLEOFFSET}} {";
+      code_ += "private enum {{TABLEOFFSET}}: VOffset {";
       Indent();
       for (auto it = struct_def.fields.vec.begin();
            it != struct_def.fields.vec.end(); ++it) {
@@ -534,8 +528,10 @@ class SwiftGenerator : public BaseGenerator {
         }
         code_.SetValue("OFFSET_NAME", namer_.Variable(field));
         code_.SetValue("OFFSET_VALUE", NumToString(field.value.offset));
-        code_ += "static let {{OFFSET_NAME}}: VOffset = {{OFFSET_VALUE}}";
+        code_ += "case {{OFFSET_NAME}} = {{OFFSET_VALUE}}";
       }
+      code_ += "var v: Int32 { Int32(self.rawValue) }";
+      code_ += "var p: VOffset { self.rawValue }";
       Outdent();
       code_ += "}";
       code_ += "";
@@ -548,14 +544,13 @@ class SwiftGenerator : public BaseGenerator {
     code_.SetValue("SHORT_STRUCTNAME", namer_.Type(struct_def));
     code_.SetValue("STRUCTNAME", namer_.NamespacedType(struct_def));
     code_.SetValue("OBJECTTYPE", struct_def.fixed ? "Struct" : "Table");
-    code_.SetValue("PROTOCOL", struct_def.fixed ? "FlatBufferStruct"
-                                                : "FlatBufferVerifiableTable");
     code_.SetValue("MUTABLE", struct_def.fixed ? Mutable() : "");
 
     GenOSVersionChecks();
     code_ +=
         "{{ACCESS_TYPE}} struct {{STRUCTNAME}}{{MUTABLE}}: "
-        "{{PROTOCOL}}, FlatbuffersVectorInitializable\\";
+        "FlatBuffer{{OBJECTTYPE}}, FlatbuffersVectorInitializable\\";
+    if (!struct_def.fixed) code_ += ", Verifiable\\";
     if (!struct_def.fixed && parser_.opts.generate_object_based_api)
       code_ += ", ObjectAPIPacker\\";
     code_ += " {\n";
@@ -625,8 +620,7 @@ class SwiftGenerator : public BaseGenerator {
     if (should_generate_create) {
       code_ += "{{ACCESS_TYPE}} static func create{{SHORT_STRUCTNAME}}(";
       Indent();
-      code_ += "_ fbb: inout FlatBufferBuilder\\";
+      code_ += "_ fbb: inout FlatBufferBuilder,";
-      if (create_func_header.empty() == false) code_ += ",";
       for (auto it = create_func_header.begin(); it < create_func_header.end();
            ++it) {
         code_ += *it + "\\";
@@ -705,7 +699,7 @@ class SwiftGenerator : public BaseGenerator {
       code_ += field.IsOptional() ? (optional_enum + "\\")
                                   : (is_enum + ", def: {{CONSTANT}}\\");
 
-      code_ += ", at: {{TABLEOFFSET}}.{{OFFSET}}) }";
+      code_ += ", at: {{TABLEOFFSET}}.{{OFFSET}}.p) }";
 
       const auto default_value =
           IsEnum(field.value.type)
@@ -725,7 +719,7 @@ class SwiftGenerator : public BaseGenerator {
       code_ +=
           "{{VALUETYPE}}" + builder_string + "fbb.add(element: {{FIELDVAR}},\\";
       code_ += field.IsOptional() ? "\\" : " def: {{CONSTANT}},";
-      code_ += " at: {{TABLEOFFSET}}.{{OFFSET}}) }";
+      code_ += " at: {{TABLEOFFSET}}.{{OFFSET}}.p) }";
       create_func_header.push_back(
           field_var + ": " + nullable_type + " = " +
           (field.IsOptional() ? "nil" : default_value));
@@ -736,7 +730,7 @@ class SwiftGenerator : public BaseGenerator {
       const auto create_struct =
           "guard let {{FIELDVAR}} = {{FIELDVAR}} else { return };"
           " fbb.create(struct: {{FIELDVAR}}, position: "
-          "{{TABLEOFFSET}}.{{OFFSET}}) }";
+          "{{TABLEOFFSET}}.{{OFFSET}}.p) }";
       code_ += type + "?" + builder_string + create_struct;
       /// Optional hard coded since structs are always optional
       create_func_header.push_back(field_var + ": " + type +
@@ -753,9 +747,8 @@ class SwiftGenerator : public BaseGenerator {
                                  (field.IsRequired() ? "" : " = Offset()"));
     const auto reader_type =
         IsStruct(field.value.type) && field.value.type.struct_def->fixed
-            ? "structOffset: {{TABLEOFFSET}}.{{OFFSET}}) }"
+            ? "structOffset: {{TABLEOFFSET}}.{{OFFSET}}.p) }"
-            : "offset: {{FIELDVAR}}, at: {{TABLEOFFSET}}.{{OFFSET}}) "
+            : "offset: {{FIELDVAR}}, at: {{TABLEOFFSET}}.{{OFFSET}}.p) }";
-              "}";
     code_ += "Offset" + builder_string + "fbb.add(" + reader_type;
 
     const auto vectortype = field.value.type.VectorType();
@@ -859,10 +852,7 @@ class SwiftGenerator : public BaseGenerator {
         break;
 
       case BASE_TYPE_STRING: {
-        const auto sc = SwiftConstant(field);
+        const auto default_string = "\"" + SwiftConstant(field) + "\"";
-        std::string default_string;
-        flatbuffers::EscapeString(sc.c_str(), sc.length(), &default_string,
-                                  true, false);
         code_.SetValue("VALUETYPE", GenType(field.value.type));
         code_.SetValue("CONSTANT", field.IsDefault() ? default_string : "nil");
         code_ += GenReaderMainBody(is_required) + GenOffset() +
@@ -870,7 +860,7 @@ class SwiftGenerator : public BaseGenerator {
         code_ += "{{ACCESS_TYPE}} var {{FIELDVAR}}SegmentArray: [UInt8]" +
                  is_required +
                  " { return "
-                 "{{ACCESS}}.getVector(at: {{TABLEOFFSET}}.{{OFFSET}}) }";
+                 "{{ACCESS}}.getVector(at: {{TABLEOFFSET}}.{{OFFSET}}.v) }";
         break;
       }
       case BASE_TYPE_ARRAY:
@@ -904,7 +894,7 @@ class SwiftGenerator : public BaseGenerator {
       code_ +=
           "{{ACCESS_TYPE}} var {{FIELDVAR}}: "
           "FlatbufferVector<{{VALUETYPE}}> "
-          "{ return {{ACCESS}}.vector(at: {{TABLEOFFSET}}.{{OFFSET}}, "
+          "{ return {{ACCESS}}.vector(at: {{TABLEOFFSET}}.{{OFFSET}}.v, "
           "byteSize: {{SIZE}}) }";
     }
 
@@ -921,7 +911,7 @@ class SwiftGenerator : public BaseGenerator {
       code_ +=
           "{{ACCESS_TYPE}} var {{FIELDVAR}}: "
           "FlatbufferVector<{{VALUETYPE}}_Mutable> "
-          "{ return {{ACCESS}}.vector(at: {{TABLEOFFSET}}.{{OFFSET}}, "
+          "{ return {{ACCESS}}.vector(at: {{TABLEOFFSET}}.{{OFFSET}}.v, "
           "byteSize: {{SIZE}}) }";
       GenUnsafeBufferPointer(field);
       return;
@@ -930,8 +920,7 @@ class SwiftGenerator : public BaseGenerator {
     if (vectortype.base_type == BASE_TYPE_UNION) {
       code_ +=
           "{{ACCESS_TYPE}} var {{FIELDVAR}}: UnionFlatbufferVector "
-          "{ return {{ACCESS}}.unionVector(at: "
+          "{ return {{ACCESS}}.unionVector(at: {{TABLEOFFSET}}.{{OFFSET}}.v, "
-          "{{TABLEOFFSET}}.{{OFFSET}}, "
           "byteSize: {{SIZE}}) }";
       code_ +=
           "{{ACCESS_TYPE}} func {{FIELDVAR}}<T: FlatbuffersInitializable>(at "
@@ -965,21 +954,24 @@ class SwiftGenerator : public BaseGenerator {
         "{{ACCESS_TYPE}} func {{functionName}}<T>(_ body: "
         "(UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return "
         "try "
-        "{{ACCESS}}.withUnsafePointerToSlice(at: "
+        "{{ACCESS}}.withUnsafePointerToSlice(at: {{TABLEOFFSET}}.{{OFFSET}}.v, "
-        "{{TABLEOFFSET}}.{{OFFSET}}, "
         "body: body) }";
   }
 
-  std::vector<std::string> GenerateCodingKeys(const StructDef& struct_def) {
+  void GenerateCodingKeys(const StructDef& struct_def) {
-    std::vector<std::string> coding_keys;
+    code_ += "enum CodingKeys: String, CodingKey {";
+    Indent();
     for (auto it = struct_def.fields.vec.begin();
          it != struct_def.fields.vec.end(); ++it) {
       const auto& field = **it;
       if (field.deprecated) continue;
-      coding_keys.push_back("case " + namer_.Variable(field) + " = \"" +
+
-                            field.name + "\"");
+      code_.SetValue("RAWVALUENAME", field.name);
+      code_.SetValue("FIELDVAR", namer_.Variable(field));
+      code_ += "case {{FIELDVAR}} = \"{{RAWVALUENAME}}\"";
     }
-    return coding_keys;
+    Outdent();
+    code_ += "}";
   }
 
   void GenerateEncoderUnionBody(const FieldDef& field) {
@@ -1101,31 +1093,14 @@ class SwiftGenerator : public BaseGenerator {
     GenOSVersionChecks();
     code_ += "extension {{STRUCTNAME}}: Encodable {";
     Indent();
-    auto coding_keys = GenerateCodingKeys(struct_def);
+    code_ += "";
-
+    if (struct_def.fields.vec.empty() == false) GenerateCodingKeys(struct_def);
-    if (coding_keys.empty() == false) {
-      code_ += "enum CodingKeys: String, CodingKey {";
-      Indent();
-      for (auto it = coding_keys.begin(); it != coding_keys.end(); ++it) {
-        const auto& field = *it;
-        code_ += field;
-      }
-      Outdent();
-      code_ += "}";
-
-      code_ += "";
-    }
 
     code_ += "{{ACCESS_TYPE}} func encode(to encoder: Encoder) throws {";
-
+    Indent();
-    if (coding_keys.empty() == false) {
+    if (struct_def.fields.vec.empty() == false) GenerateEncoderBody(struct_def);
-      Indent();
+    Outdent();
-      GenerateEncoderBody(struct_def);
-      Outdent();
-    }
-
     code_ += "}";
-
     Outdent();
     code_ += "}";
     code_ += "";
@@ -1155,7 +1130,7 @@ class SwiftGenerator : public BaseGenerator {
       }
 
       code_ +=
-          "try _v.visit(field: {{TABLEOFFSET}}.{{OFFSET}}, fieldName: "
+          "try _v.visit(field: {{TABLEOFFSET}}.{{OFFSET}}.p, fieldName: "
           "\"{{FIELDVAR}}\", required: {{ISREQUIRED}}, type: "
           "{{VALUETYPE}}.self)";
     }
@@ -1175,9 +1150,8 @@ class SwiftGenerator : public BaseGenerator {
     code_.SetValue("VALUETYPE", namer_.NamespacedType(union_def));
     code_.SetValue("FUNCTION_NAME", is_vector ? "visitUnionVector" : "visit");
     code_ +=
-        "try _v.{{FUNCTION_NAME}}(unionKey: "
+        "try _v.{{FUNCTION_NAME}}(unionKey: {{TABLEOFFSET}}.{{OFFSET}}Type.p, "
-        "{{TABLEOFFSET}}.{{OFFSET}}Type, "
+        "unionField: {{TABLEOFFSET}}.{{OFFSET}}.p, unionKeyName: "
-        "unionField: {{TABLEOFFSET}}.{{OFFSET}}, unionKeyName: "
         "\"{{FIELDVAR}}Type\", fieldName: \"{{FIELDVAR}}\", required: "
         "{{ISREQUIRED}}, completion: { (verifier, key: {{VALUETYPE}}, pos) in";
     Indent();
@@ -1652,23 +1626,15 @@ class SwiftGenerator : public BaseGenerator {
         buffer_constructor.push_back(field_var + " = _t." + field_field);
 
         if (field.IsRequired()) {
-          std::string default_value;
+          std::string default_value =
-          if (field.IsDefault()) {
+              field.IsDefault() ? SwiftConstant(field) : "";
-            const auto sc = SwiftConstant(field);
+          base_constructor.push_back(field_var + " = \"" + default_value +
-            flatbuffers::EscapeString(sc.c_str(), sc.length(), &default_value,
+                                     "\"");
-                                      true, false);
-          } else {
-            default_value = "\"\"";
-          }
-          base_constructor.push_back(field_var + " = " + default_value);
           break;
         }
         if (field.IsDefault() && !field.IsRequired()) {
-          const auto sc = SwiftConstant(field);
+          std::string value = field.IsDefault() ? SwiftConstant(field) : "nil";
-          std::string value;
+          base_constructor.push_back(field_var + " = \"" + value + "\"");
-          flatbuffers::EscapeString(sc.c_str(), sc.length(), &value,
-                                    true, false);
-          base_constructor.push_back(field_var + " = " + value);
         }
         break;
       }
@@ -1927,7 +1893,7 @@ class SwiftGenerator : public BaseGenerator {
   }
 
   std::string GenOffset() {
-    return "let o = {{ACCESS}}.offset({{TABLEOFFSET}}.{{OFFSET}}); ";
+    return "let o = {{ACCESS}}.offset({{TABLEOFFSET}}.{{OFFSET}}.v); ";
   }
 
   std::string GenReaderMainBody(const std::string& optional = "") {

src/idl_gen_ts.cpp

@@ -324,10 +324,9 @@ class TsGenerator : public BaseGenerator {
         export_counter++;
       }
 
-      if (export_counter > 0) {
+      if (export_counter > 0)
         parser_.opts.file_saver->SaveFile(it.second.filepath.c_str(), code,
                                           false);
-      }
     }
   }
 
@@ -522,20 +521,7 @@ class TsGenerator : public BaseGenerator {
       case BASE_TYPE_BOOL:
         return value.constant == "0" ? "false" : "true";
 
-      case BASE_TYPE_STRING: {
+      case BASE_TYPE_STRING:
-        // NOTE: Strings without a default value are parsed as "0" by
-        // the parser, so therefore we have to treat "0" as a null-signifying
-        // value.
-        if (value.constant == "0" || value.constant == "null") {
-          return "null";
-        } else {
-          std::string escaped;
-          flatbuffers::EscapeString(value.constant.c_str(),
-                                    value.constant.length(), &escaped,
-                                    true, false);
-          return escaped;
-        }
-      }
       case BASE_TYPE_UNION:
       case BASE_TYPE_STRUCT: {
         return null_keyword_;
@@ -661,8 +647,7 @@ class TsGenerator : public BaseGenerator {
   }
 
   void GenStructArgs(import_set& imports, const StructDef& struct_def,
-                     const Definition& owner, std::string* arguments,
+                     std::string* arguments, const std::string& nameprefix) {
-                     const std::string& nameprefix) {
     for (auto it = struct_def.fields.vec.begin();
          it != struct_def.fields.vec.end(); ++it) {
       auto& field = **it;
@@ -670,11 +655,11 @@ class TsGenerator : public BaseGenerator {
         // Generate arguments for a struct inside a struct. To ensure names
         // don't clash, and to make it obvious these arguments are constructing
         // a nested struct, prefix the name with the field name.
-        GenStructArgs(imports, *field.value.type.struct_def, owner, arguments,
+        GenStructArgs(imports, *field.value.type.struct_def, arguments,
                       nameprefix + field.name + "_");
       } else {
         *arguments += ", " + nameprefix + field.name + ": " +
-                      GenTypeName(imports, owner, field.value.type, true,
+                      GenTypeName(imports, field, field.value.type, true,
                                   field.IsOptional());
       }
     }
@@ -936,48 +921,6 @@ class TsGenerator : public BaseGenerator {
     return symbols_expression;
   }
 
-  std::vector<std::string> PathComponents(const std::string& path) const {
-    std::vector<std::string> components;
-    size_t start = 0;
-    while (start < path.size()) {
-      auto end = path.find(kPathSeparator, start);
-      if (end == std::string::npos) end = path.size();
-      if (end > start) {
-        components.emplace_back(path.substr(start, end - start));
-      }
-      if (end == path.size()) break;
-      start = end + 1;
-    }
-    return components;
-  }
-
-  std::string RelativeDirectory(const std::vector<std::string>& from,
-                                const std::vector<std::string>& to) const {
-    size_t common = 0;
-    while (common < from.size() && common < to.size() &&
-           from[common] == to[common]) {
-      ++common;
-    }
-
-    std::string rel;
-    const size_t ups = from.size() - common;
-    if (ups == 0) {
-      rel = ".";
-    } else {
-      for (size_t i = 0; i < ups; ++i) {
-        if (!rel.empty()) rel += kPathSeparator;
-        rel += "..";
-      }
-    }
-
-    for (size_t i = common; i < to.size(); ++i) {
-      if (!rel.empty()) rel += kPathSeparator;
-      rel += to[i];
-    }
-
-    return rel;
-  }
-
   template <typename DefinitionT>
   ImportDefinition AddImport(import_set& imports, const Definition& dependent,
                              const DefinitionT& dependency) {
@@ -1005,32 +948,26 @@ class TsGenerator : public BaseGenerator {
     const std::string symbols_expression = GenSymbolExpression(
         dependency, has_name_clash, import_name, name, object_name);
 
-    const Namespace* dependent_ns = dependent.defined_namespace
+    std::string bare_file_path;
-                                        ? dependent.defined_namespace
+    std::string rel_file_path;
-                                        : parser_.empty_namespace_;
+    if (dependent.defined_namespace) {
-    const Namespace* dependency_ns = dependency.defined_namespace
+      const auto& dep_comps = dependent.defined_namespace->components;
-                                         ? dependency.defined_namespace
+      for (size_t i = 0; i < dep_comps.size(); i++) {
-                                         : parser_.empty_namespace_;
+        rel_file_path += i == 0 ? ".." : (kPathSeparator + std::string(".."));
+      }
+      if (dep_comps.size() == 0) {
+        rel_file_path += ".";
+      }
+    } else {
+      rel_file_path += "..";
+    }
 
-    const std::string dependent_dirs =
+    bare_file_path +=
-        namer_.Directories(*dependent_ns, SkipDir::OutputPath);
+        kPathSeparator +
-    const std::string dependency_dirs =
+        namer_.Directories(dependency.defined_namespace->components,
-        namer_.Directories(*dependency_ns, SkipDir::OutputPath);
+                           SkipDir::OutputPath) +
-
-    const auto dependent_components = PathComponents(dependent_dirs);
-    const auto dependency_components = PathComponents(dependency_dirs);
-
-    std::string rel_dir =
-        RelativeDirectory(dependent_components, dependency_components);
-    if (rel_dir.empty()) rel_dir = ".";
-    if (!rel_dir.empty()) rel_dir += kPathSeparator;
-
-    std::string rel_file_path =
-        rel_dir + namer_.File(dependency, SkipFile::SuffixAndExtension);
-
-    std::string bare_file_path =
-        kPathSeparator + dependency_dirs +
         namer_.File(dependency, SkipFile::SuffixAndExtension);
+    rel_file_path += bare_file_path;
 
     ImportDefinition import;
     import.name = name;
@@ -1235,10 +1172,9 @@ class TsGenerator : public BaseGenerator {
 
   std::string GenNullCheckConditional(const std::string& nullCheckVar,
                                       const std::string& trueVal,
-                                      const std::string& falseVal = "") {
+                                      const std::string& falseVal) {
-    std::string false_val = falseVal.empty() ? null_keyword_ : falseVal;
     return "(" + nullCheckVar + " !== " + null_keyword_ + " ? " + trueVal +
-           " : " + false_val + ")";
+           " : " + falseVal + ")";
   }
 
   std::string GenStructMemberValueTS(const StructDef& struct_def,
@@ -1347,9 +1283,10 @@ class TsGenerator : public BaseGenerator {
       // Emit a scalar field
       const auto is_string = IsString(field.value.type);
       if (IsScalar(field.value.type.base_type) || is_string) {
-        field_type +=
+        const auto has_null_default = is_string || HasNullDefault(field);
-            GenTypeName(imports, field, field.value.type, false,
+
-                        !HasDefaultValue(field) || HasNullDefault(field));
+        field_type += GenTypeName(imports, field, field.value.type, false,
+                                  has_null_default);
         field_val = "this." + namer_.Method(field) + "()";
 
         if (field.value.type.base_type != BASE_TYPE_STRING) {
@@ -1695,12 +1632,11 @@ class TsGenerator : public BaseGenerator {
     GenDocComment(struct_def.doc_comment, code_ptr);
     code += "export class ";
     code += object_name;
-    if (parser.opts.generate_object_based_api) {
+    if (parser.opts.generate_object_based_api)
       code += " implements flatbuffers.IUnpackableObject<" + object_api_name +
               "> {\n";
-    } else {
+    else
       code += " {\n";
-    }
     code += "  bb: flatbuffers.ByteBuffer|" + null_keyword_ + " = " +
             null_keyword_ + ";\n";
     code += "  bb_pos = 0;\n";
@@ -1743,22 +1679,21 @@ class TsGenerator : public BaseGenerator {
         offset_prefix = "  const offset = " + GenBBAccess() +
                         ".__offset(this.bb_pos, " +
                         NumToString(field.value.offset) + ");\n";
-        offset_prefix += "  return ";
+        offset_prefix += "  return offset ? ";
       }
 
       // Emit a scalar field
       const auto is_string = IsString(field.value.type);
       if (IsScalar(field.value.type.base_type) || is_string) {
-        const auto has_null_default =
+        const auto has_null_default = is_string || HasNullDefault(field);
-            !field.IsRequired() && !HasDefaultValue(field);
 
         GenDocComment(field.doc_comment, code_ptr);
         std::string prefix = namer_.Method(field) + "(";
         if (is_string) {
-          code += prefix + "):" + (has_null_default ? "string|" + null_keyword_ : "string") + "\n";
+          code += prefix + "):string|" + null_keyword_ + "\n";
           code +=
               prefix + "optionalEncoding:flatbuffers.Encoding" + "):" +
-              GenTypeName(imports, struct_def, field.value.type, false, has_null_default) +
+              GenTypeName(imports, struct_def, field.value.type, false, true) +
               "\n";
           code += prefix + "optionalEncoding?:any";
         } else {
@@ -1787,16 +1722,9 @@ class TsGenerator : public BaseGenerator {
           if (is_string) {
             index += ", optionalEncoding";
           }
-          if (field.IsRequired()) {
+          code +=
-            code +=
+              offset_prefix + GenGetter(field.value.type, "(" + index + ")");
-                offset_prefix + GenGetter(field.value.type, "(" + index + ")");
+          if (field.value.type.base_type != BASE_TYPE_ARRAY) {
-            ;
-          } else {
-            code += offset_prefix + "offset ? " +
-                    GenGetter(field.value.type, "(" + index + ")");
-          }
-          if (field.value.type.base_type != BASE_TYPE_ARRAY &&
-              !field.IsRequired()) {
             code += " : " + GenDefaultValue(field, imports);
           }
           code += ";\n";
@@ -1821,8 +1749,8 @@ class TsGenerator : public BaseGenerator {
               code +=
                   MaybeAdd(field.value.offset) + ", " + GenBBAccess() + ");\n";
             } else {
-              code += offset_prefix + "offset ? (obj || " +
+              code += offset_prefix + "(obj || " + GenerateNewExpression(type) +
-                      GenerateNewExpression(type) + ").__init(";
+                      ").__init(";
               code += field.value.type.struct_def->fixed
                           ? "this.bb_pos + offset"
                           : GenBBAccess() + ".__indirect(this.bb_pos + offset)";
@@ -1980,7 +1908,7 @@ class TsGenerator : public BaseGenerator {
             code += "):" + vectortypename + "|" + null_keyword_ + " {\n";
 
             if (vectortype.base_type == BASE_TYPE_STRUCT) {
-              code += offset_prefix + "offset ? (obj || " +
+              code += offset_prefix + "(obj || " +
                       GenerateNewExpression(vectortypename);
               code += ").__init(";
               code += vectortype.struct_def->fixed
@@ -1993,8 +1921,7 @@ class TsGenerator : public BaseGenerator {
               } else if (IsString(vectortype)) {
                 index += ", optionalEncoding";
               }
-              code += offset_prefix + "offset ? " +
+              code += offset_prefix + GenGetter(vectortype, "(" + index + ")");
-                      GenGetter(vectortype, "(" + index + ")");
             }
             code += " : ";
             if (field.value.type.element == BASE_TYPE_BOOL) {
@@ -2026,7 +1953,7 @@ class TsGenerator : public BaseGenerator {
                     " "
                     "{\n";
 
-            code += offset_prefix + "offset ? " +
+            code += offset_prefix +
                     GenGetter(field.value.type, "(obj, this.bb_pos + offset)") +
                     " : " + null_keyword_ + ";\n";
             break;
@@ -2079,7 +2006,7 @@ class TsGenerator : public BaseGenerator {
         // Emit a length helper
         GenDocComment(code_ptr);
         code += namer_.Method(field, "Length");
-        code += "():number {\n" + offset_prefix + "offset ? ";
+        code += "():number {\n" + offset_prefix;
 
         code +=
             GenBBAccess() + ".__vector_len(this.bb_pos + offset) : 0;\n}\n\n";
@@ -2090,30 +2017,15 @@ class TsGenerator : public BaseGenerator {
           GenDocComment(code_ptr);
 
           code += namer_.Method(field, "Array");
+          code += "():" + GenType(vectorType) + "Array|" + null_keyword_ +
+                  " {\n" + offset_prefix;
 
-          std::string return_type =
+          code += "new " + GenType(vectorType) + "Array(" + GenBBAccess() +
-              (field.IsRequired() || HasDefaultValue(field))
+                  ".bytes().buffer, " + GenBBAccess() +
-                  ? "Array"
+                  ".bytes().byteOffset + " + GenBBAccess() +
-                  : ("Array|" + null_keyword_);
+                  ".__vector(this.bb_pos + offset), " + GenBBAccess() +
-          if (field.IsRequired()) {
+                  ".__vector_len(this.bb_pos + offset)) : " + null_keyword_ +
-            code += "():" + GenType(vectorType) + return_type + " {\n" +
+                  ";\n}\n\n";
-                    offset_prefix + "new " + GenType(vectorType) + "Array(" +
-                    GenBBAccess() + ".bytes().buffer, " + GenBBAccess() +
-                    ".bytes().byteOffset + " + GenBBAccess() +
-                    ".__vector(this.bb_pos + offset), " + GenBBAccess() +
-                    ".__vector_len(this.bb_pos + offset));\n}\n\n";
-          } else {
-            std::string value = HasDefaultValue(field)
-                                    ? "new " + GenType(vectorType) + "Array()"
-                                    : "null";
-            code += "():" + GenType(vectorType) + return_type + " {\n" +
-                    offset_prefix + "offset ? new " + GenType(vectorType) +
-                    "Array(" + GenBBAccess() + ".bytes().buffer, " +
-                    GenBBAccess() + ".bytes().byteOffset + " + GenBBAccess() +
-                    ".__vector(this.bb_pos + offset), " + GenBBAccess() +
-                    ".__vector_len(this.bb_pos + offset)) : " + value +
-                    ";\n}\n\n";
-          }
         }
       }
     }
@@ -2142,7 +2054,7 @@ class TsGenerator : public BaseGenerator {
     // Emit a factory constructor
     if (struct_def.fixed) {
       std::string arguments;
-      GenStructArgs(imports, struct_def, struct_def, &arguments, "");
+      GenStructArgs(imports, struct_def, &arguments, "");
       GenDocComment(code_ptr);
 
       code += "static create" + GetPrefixedName(struct_def) +
@@ -2344,34 +2256,6 @@ class TsGenerator : public BaseGenerator {
     return field.IsOptional() && field.value.constant == "null";
   }
 
-  static bool HasDefaultValue(const FieldDef& field) {
-    switch (field.value.type.base_type) {
-      // These types can't have defaults
-      case BASE_TYPE_UNION:
-      case BASE_TYPE_STRUCT: {
-        return false;
-      }
-
-      // Arrays always have a default (empty array)
-      case BASE_TYPE_ARRAY:
-        return true;
-
-      // The only supported default for vectors is []
-      case BASE_TYPE_VECTOR:
-        return field.value.constant == "[]";
-
-      // Even strings are presumed to be null-default if the default value is
-      // "0", this is intended behavior.
-      case BASE_TYPE_STRING: {
-        return field.value.constant != "0" && field.value.constant != "null";
-      }
-
-      default: {
-        return field.value.constant != "null";
-      }
-    }
-  }
-
   std::string GetArgType(import_set& imports, const Definition& owner,
                          const FieldDef& field, bool allowNull) {
     return GenTypeName(imports, owner, field.value.type, true,

src/idl_parser.cpp

@@ -1286,6 +1286,55 @@ CheckedError Parser::ParseField(StructDef& struct_def) {
         "'native_inline' can only be defined on structs, vector of structs or "
         "vector of tables");
 
+  // `bigfoot_ref` is Bigfoot's single-purpose replacement for the old,
+  // general-purpose `native_type_template`/`native_type_template_arg` pair:
+  // a field typed as a `bigfoot_ref_wrapper`-tagged struct (HardReference or
+  // SoftReference) and annotated `bigfoot_ref: "::Bigfoot::AssetX"` gets its
+  // native type instantiated as `<wrapper><::Bigfoot::AssetX>`, plus (unlike
+  // the old mechanism) a forward declaration of AssetX and inline Pack/UnPack
+  // definitions are emitted directly into the generated header - see
+  // GenerateBigfootRefDecls in idl_gen_cpp.cpp.
+  auto bigfoot_ref = field->attributes.Lookup("bigfoot_ref");
+  if (bigfoot_ref) {
+    if (!IsStruct(field->value.type) && !IsVectorOfStruct(field->value.type))
+      return Error(
+          "'bigfoot_ref' can only be defined on struct-typed fields or "
+          "vectors of structs");
+    const auto* target_struct = field->value.type.struct_def;
+    const auto* wrapper = target_struct->attributes.Lookup("bigfoot_ref_wrapper");
+    if (!wrapper)
+      return Error(
+          "'bigfoot_ref' requires the field's type ('" + target_struct->name +
+          "') to declare a 'bigfoot_ref_wrapper' attribute");
+    if (field->attributes.Lookup("native_type"))
+      return Error(
+          "'bigfoot_ref' cannot be combined with an explicit 'native_type' "
+          "on the same field");
+
+    const auto b = bigfoot_ref->constant.find_first_not_of(" \t");
+    const auto e = bigfoot_ref->constant.find_last_not_of(" \t");
+    const std::string asset_type =
+        b == std::string::npos ? "" : bigfoot_ref->constant.substr(b, e - b + 1);
+    if (asset_type.empty())
+      return Error("'bigfoot_ref' cannot be empty");
+
+    auto native_type_val = new Value();
+    native_type_val->type = bigfoot_ref->type;
+    native_type_val->constant = wrapper->constant + "<" + asset_type + ">";
+    field->attributes.Add("native_type", native_type_val);
+
+    if (!field->attributes.Lookup("native_type_pack_name")) {
+      const auto last_colon = asset_type.find_last_of(':');
+      const std::string asset_short_name =
+          last_colon == std::string::npos ? asset_type
+                                          : asset_type.substr(last_colon + 1);
+      auto pack_name_val = new Value();
+      pack_name_val->type = bigfoot_ref->type;
+      pack_name_val->constant = target_struct->name + asset_short_name;
+      field->attributes.Add("native_type_pack_name", pack_name_val);
+    }
+  }
+
   auto nested = field->attributes.Lookup("nested_flatbuffer");
   if (nested) {
     if (nested->type.base_type != BASE_TYPE_STRING)
@@ -2809,8 +2858,7 @@ bool Parser::SupportsOptionalScalars() const {
 bool Parser::SupportsDefaultVectorsAndStrings() const {
   static FLATBUFFERS_CONSTEXPR unsigned long supported_langs =
       IDLOptions::kRust | IDLOptions::kSwift | IDLOptions::kNim |
-      IDLOptions::kCpp | IDLOptions::kBinary | IDLOptions::kJson |
+      IDLOptions::kCpp | IDLOptions::kBinary | IDLOptions::kJson;
-      IDLOptions::kTs;
   return !(opts.lang_to_generate & ~supported_langs);
 }
 
@@ -3172,10 +3220,8 @@ CheckedError Parser::ParseProtoFields(StructDef* struct_def, bool isextend,
             return Error("Protobuf has non positive number in reserved ids");
 
           if (range) {
-            for (uint32_t id = static_cast<uint32_t>(from) + 1;
+            for (voffset_t id = from + 1; id <= attribute; id++)
-                 id <= static_cast<uint32_t>(attribute); id++) {
+              struct_def->reserved_ids.push_back(id);
-              struct_def->reserved_ids.push_back(static_cast<voffset_t>(id));
-            }
 
             range = false;
           } else {
@@ -4132,15 +4178,7 @@ bool StructDef::Deserialize(Parser& parser, const reflection::Object* object) {
   sortbysize = attributes.Lookup("original_order") == nullptr && !fixed;
   const auto& of = *(object->fields());
   auto indexes = std::vector<uoffset_t>(of.size());
-  for (uoffset_t i = 0; i < of.size(); i++) {
+  for (uoffset_t i = 0; i < of.size(); i++) indexes[of.Get(i)->id()] = i;
-  uint16_t field_id = of.Get(i)->id();
-  if (field_id >= of.size()) {
-    parser.error_ = "Field ID " + std::to_string(field_id) + 
-                    " exceeds field count " + std::to_string(of.size());
-    return false;
-  }
-  indexes[field_id] = i;
-}
   size_t tmp_struct_size = 0;
   for (size_t i = 0; i < indexes.size(); i++) {
     auto field = of.Get(indexes[i]);

src/reflection.cpp

@@ -389,7 +389,7 @@ void ForAllFields(const reflection::Object* object, bool reverse,
 
   for (size_t i = 0; i < field_to_id_map.size(); ++i) {
     func(object->fields()->Get(
-        field_to_id_map[reverse ? field_to_id_map.size() - (i + 1) : i]));
+        field_to_id_map[reverse ? field_to_id_map.size() - i + 1 : i]));
   }
 }
 
@@ -641,10 +641,7 @@ const uint8_t* AddFlatBuffer(std::vector<uint8_t>& flatbuf,
                              const uint8_t* newbuf, size_t newlen) {
   // Align to sizeof(uoffset_t) past sizeof(largest_scalar_t) since we're
   // going to chop off the root offset.
-  if (!newbuf || newlen < sizeof(uoffset_t)) return nullptr;
   FLATBUFFERS_ASSERT(newlen >= sizeof(uoffset_t));
-  auto root = ReadScalar<uoffset_t>(newbuf);
-  if (root < sizeof(uoffset_t) || root >= newlen) return nullptr;
   while ((flatbuf.size() & (sizeof(uoffset_t) - 1)) ||
          !(flatbuf.size() & (sizeof(largest_scalar_t) - 1))) {
     flatbuf.push_back(0);
@@ -652,7 +649,7 @@ const uint8_t* AddFlatBuffer(std::vector<uint8_t>& flatbuf,
   auto insertion_point = static_cast<uoffset_t>(flatbuf.size());
   // Insert the entire FlatBuffer minus the root pointer.
   flatbuf.insert(flatbuf.end(), newbuf + sizeof(uoffset_t), newbuf + newlen);
-  auto root_offset = root - sizeof(uoffset_t);
+  auto root_offset = ReadScalar<uoffset_t>(newbuf) - sizeof(uoffset_t);
   return flatbuf.data() + insertion_point + root_offset;
 }
 

swift/Sources/Common/Scalar.swift

@@ -28,7 +28,7 @@ public let FileIdLength = 4
 /// Protocol that All Scalars should conform to
 ///
 /// Scalar is used to conform all the numbers that can be represented in a FlatBuffer. It's used to write/read from the buffer.
-public protocol Scalar: Equatable, BitwiseCopyable {
+public protocol Scalar: Equatable {
   associatedtype NumericValue
   var convertedEndian: NumericValue { get }
 }

swift/Sources/FlatBuffers/ByteBuffer.swift

@@ -20,56 +20,22 @@ import Foundation
 /// it allows users to write and read data directly from memory thus the use of its
 /// functions should be used
 @frozen
-public struct ByteBuffer: @unchecked Sendable {
+public struct ByteBuffer {
 
   /// Storage is a container that would hold the memory pointer to solve the issue of
   /// deallocating the memory that was held by (memory: UnsafeMutableRawPointer)
   @usableFromInline
   final class Storage {
     @usableFromInline
-    @frozen enum Blob: ~Copyable {
+    enum Blob {
       #if !os(WASI)
       case data(Data)
-      case bytes(any ContiguousBytes)
+      case bytes(ContiguousBytes)
       #endif
 
       case byteBuffer(_InternalByteBuffer)
       case array([UInt8])
       case pointer(UnsafeMutableRawPointer)
-
-      init(_ other: borrowing Blob) {
-        switch other {
-        #if !os(WASI)
-        case .data(let data):
-          self = .data(data)
-        case .bytes(let contiguousBytes):
-          self = .bytes(contiguousBytes)
-        #endif
-        case .byteBuffer(let internalByteBuffer):
-          self = .byteBuffer(internalByteBuffer)
-        case .array(let array):
-          self = .array(array)
-        case .pointer(let unsafeMutableRawPointer):
-          self = .pointer(unsafeMutableRawPointer)
-        }
-      }
-
-      var description: String {
-        switch self {
-        #if !os(WASI)
-        case .data(let data):
-          "data: \(data)"
-        case .bytes(let contiguousBytes):
-          "bytes: \(contiguousBytes)"
-        #endif
-        case .byteBuffer(let internalByteBuffer):
-          "byteBuffer: \(internalByteBuffer)"
-        case .array(let array):
-          "array: \(array)"
-        case .pointer(let unsafeMutableRawPointer):
-          "pointer: \(unsafeMutableRawPointer)"
-        }
-      }
     }
 
     /// This storage doesn't own the memory, therefore, we won't deallocate on deinit.
@@ -78,7 +44,7 @@ public struct ByteBuffer: @unchecked Sendable {
     private let capacity: Int
     /// Retained blob of data that requires the storage to retain a pointer to.
     @usableFromInline
-    let retainedBlob: Blob
+    var retainedBlob: Blob
 
     @usableFromInline
     init(count: Int) {
@@ -91,9 +57,9 @@ public struct ByteBuffer: @unchecked Sendable {
     }
 
     @usableFromInline
-    init(blob: borrowing Blob, capacity count: Int) {
+    init(blob: Blob, capacity count: Int) {
       capacity = count
-      retainedBlob = .init(blob)
+      retainedBlob = blob
       isOwned = false
     }
 
@@ -184,7 +150,6 @@ public struct ByteBuffer: @unchecked Sendable {
 
     @discardableResult
     @inline(__always)
-    @inlinable
     func readWithUnsafeRawPointer<T>(
       position: Int,
       _ body: (UnsafeRawPointer) throws -> T) rethrows -> T
@@ -313,7 +278,7 @@ public struct ByteBuffer: @unchecked Sendable {
   ///   - removeBytes: Removes a number of bytes from the current size
   @inline(__always)
   init(
-    blob: borrowing Storage.Blob,
+    blob: Storage.Blob,
     count: Int,
     removing removeBytes: Int)
   {
@@ -353,8 +318,7 @@ public struct ByteBuffer: @unchecked Sendable {
   ///   - def: Type of the object
   ///   - position: the index of the object in the buffer
   @inline(__always)
-  @inlinable
+  public func read<T>(def: T.Type, position: Int) -> T {
-  public func read<T: BitwiseCopyable>(def: T.Type, position: Int) -> T {
     _storage.readWithUnsafeRawPointer(position: position) {
       $0.bindMemory(to: T.self, capacity: 1)
         .pointee
@@ -448,7 +412,7 @@ public struct ByteBuffer: @unchecked Sendable {
   /// - Parameter removeBytes: the amount of bytes to remove from the current Size
   @inline(__always)
   public func duplicate(removing removeBytes: Int = 0) -> ByteBuffer {
-    assert(removeBytes >= 0, "Can NOT remove negative bytes")
+    assert(removeBytes > 0, "Can NOT remove negative bytes")
     assert(
       removeBytes < capacity,
       "Can NOT remove more bytes than the ones allocated")
@@ -500,9 +464,8 @@ public struct ByteBuffer: @unchecked Sendable {
 extension ByteBuffer: CustomDebugStringConvertible {
 
   public var debugDescription: String {
-    let blobDescription = _storage.retainedBlob.description
+    """
-    return """
+    buffer located at: \(_storage.retainedBlob), 
-    buffer located at: \(blobDescription), 
     with capacity of \(capacity),
     { writtenSize: \(_readerIndex), readerSize: \(reader), 
     size: \(size) }

swift/Sources/FlatBuffers/Enum.swift

@@ -23,7 +23,7 @@ import Common
 /// Enum is a protocol that all flatbuffers enums should conform to
 /// Since it allows us to get the actual `ByteSize` and `Value` from
 /// a swift enum.
-public protocol Enum: Sendable {
+public protocol Enum {
   /// associatedtype that the type of the enum should conform to
   associatedtype T: Scalar & Verifiable
   /// Size of the current associatedtype in the enum

swift/Sources/FlatBuffers/FlatBufferBuilder.swift

@@ -45,10 +45,9 @@ public struct FlatBufferBuilder {
   /// Dictonary that stores a map of all the strings that were written to the buffer
   private var stringOffsetMap: [String: Offset] = [:]
   /// A check to see if finish(::) was ever called to retreive data object
-  private(set) var finished = false
+  private var finished = false
   /// A check to see if the buffer should serialize Default values
-  @usableFromInline
+  private var serializeDefaults: Bool
-  let serializeDefaults: Bool
 
   /// Current alignment for the buffer
   var _minAlignment: Int = 0 {
@@ -489,7 +488,7 @@ public struct FlatBufferBuilder {
   ///
   /// - Parameter bytes: bytes to be written into the buffer
   /// - Returns: ``Offset`` of the vector
-  mutating public func createVector(bytes: any ContiguousBytes) -> Offset {
+  mutating public func createVector(bytes: ContiguousBytes) -> Offset {
     bytes.withUnsafeBytes {
       startVector($0.count, elementSize: MemoryLayout<UInt8>.size)
       _bb.push(bytes: $0)
@@ -757,7 +756,6 @@ public struct FlatBufferBuilder {
   ///   - offset: ``Offset`` of another object to be written
   ///   - position: The predefined position of the object
   @inline(__always)
-  @inlinable
   mutating public func add(offset: Offset, at position: VOffset) {
     if offset.isEmpty { return }
     add(element: refer(to: offset.o), def: 0, at: position)
@@ -796,7 +794,6 @@ public struct FlatBufferBuilder {
   ///   - def: Default value for that element
   ///   - position: The predefined position of the element
   @inline(__always)
-  @inlinable
   mutating public func add<T: Scalar>(
     element: T,
     def: T,
@@ -816,7 +813,6 @@ public struct FlatBufferBuilder {
   ///   - element: Optional element of type scalar
   ///   - position: The predefined position of the element
   @inline(__always)
-  @inlinable
   mutating public func add<T: Scalar>(element: T?, at position: VOffset) {
     guard let element = element else { return }
     track(offset: push(element: element), at: position)
@@ -829,7 +825,6 @@ public struct FlatBufferBuilder {
   /// - Parameter element: Element to insert
   /// - returns: position of the Element
   @inline(__always)
-  @inlinable
   @discardableResult
   mutating public func push<T: Scalar>(element: T) -> UOffset {
     let size = MemoryLayout<T>.size
@@ -841,8 +836,7 @@ public struct FlatBufferBuilder {
   }
 
   @inline(__always)
-  @inlinable
+  public func read<T>(def: T.Type, position: Int) -> T {
-  public func read<T: BitwiseCopyable>(def: T.Type, position: Int) -> T {
     _bb.read(def: def, position: position)
   }
 }

swift/Sources/FlatBuffers/FlatBufferObject.swift

@@ -18,9 +18,7 @@ import Foundation
 
 /// NativeStruct is a protocol that indicates if the struct is a native `swift` struct
 /// since now we will be serializing native structs into the buffer.
-public protocol NativeStruct: BitwiseCopyable {}
+public protocol NativeStruct {}
-
-public protocol FlatBufferVerifiableNativeStruct: NativeStruct, Verifiable {}
 
 /// FlatbuffersInitializable is a protocol that allows any object to be
 /// Initialized from a ByteBuffer
@@ -37,8 +35,6 @@ public protocol FlatBufferTable: FlatbuffersInitializable,
   var __buffer: ByteBuffer! { get }
 }
 
-public protocol FlatBufferVerifiableTable: FlatBufferTable, Verifiable {}
-
 /// FlatbufferStruct structures all the Flatbuffers structs
 public protocol FlatBufferStruct: FlatbuffersInitializable,
   FlatbuffersVectorInitializable

swift/Sources/FlatBuffers/Message.swift

@@ -16,52 +16,50 @@
 
 import Foundation
 
-enum FlatbuffersGRPCError: Error {
+/// FlatBufferGRPCMessage protocol that should allow us to invoke
-  case finishedNotCalledOnBuilder
+/// initializers directly from the GRPC generated code
-}
+public protocol FlatBufferGRPCMessage {
+  /// Size of readable bytes in the buffer
+  var size: Int { get }
 
-public protocol GRPCVerifiableMessage<Message> {
-  associatedtype Message
-
-  init(pointer: UnsafeRawBufferPointer)
   init(byteBuffer: ByteBuffer)
 
-  func decode() throws -> Message
+  @discardableResult
-  func withUnsafeReadableBytes<Data>(
+  @inline(__always)
+  func withUnsafeReadableBytes<T>(
     _ body: (UnsafeRawBufferPointer) throws
-      -> Data) rethrows -> Data
+      -> T) rethrows -> T
 }
 
-public struct GRPCMessage<
+/// Message is a wrapper around Buffers to to able to send Flatbuffers `Buffers` through the
-  Table: FlatBufferVerifiableTable
+/// GRPC library
->: Sendable, GRPCVerifiableMessage {
+public struct Message<T: FlatBufferTable>: FlatBufferGRPCMessage {
-  public typealias Message = Table
+  internal var buffer: ByteBuffer
 
-  private let buffer: ByteBuffer
+  /// Returns the an object of type T that would be  read from the buffer
+  public var object: T {
+    T.init(
+      buffer,
+      o: Int32(buffer.read(def: UOffset.self, position: buffer.reader)) &+
+        Int32(buffer.reader))
+  }
 
   public var size: Int { Int(buffer.size) }
 
-  public init(pointer: UnsafeRawBufferPointer) {
+  /// Initializes the message with the type Flatbuffer.Bytebuffer that is transmitted over
-    buffer = ByteBuffer(
+  /// GRPC
-      copyingMemoryBound: pointer.baseAddress!,
+  /// - Parameter byteBuffer: Flatbuffer ByteBuffer object
-      capacity: pointer.count)
-  }
-
-  public init(builder: inout FlatBufferBuilder) throws {
-    guard builder.finished else {
-      throw FlatbuffersGRPCError.finishedNotCalledOnBuilder
-    }
-
-    buffer = builder.sizedBuffer
-  }
-
   public init(byteBuffer: ByteBuffer) {
     buffer = byteBuffer
   }
 
-  public func decode() throws -> Table {
+  /// Initializes the message by copying the buffer to the message to be sent.
-    var buf = buffer
+  /// from the builder
-    return try getCheckedRoot(byteBuffer: &buf)
+  /// - Parameter builder: FlatbufferBuilder that has the bytes created in
+  /// - Note: Use  `builder.finish(offset)` before passing the builder without prefixing anything to it
+  public init(builder: inout FlatBufferBuilder) {
+    buffer = builder.sizedBuffer
+    builder.clear()
   }
 
   @discardableResult
@@ -75,30 +73,3 @@ public struct GRPCMessage<
     }
   }
 }
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-public struct FlatBuffersMessageSerializer<
-  Message: GRPCVerifiableMessage
->: Sendable {
-  public init() {}
-
-  public func serialize<Data>(
-    message: Message,
-    _ completion: (UnsafeRawBufferPointer) throws -> Data) throws -> Data
-  {
-    return try message.withUnsafeReadableBytes {
-      try completion($0)
-    }
-  }
-}
-
-@available(macOS 15.0, iOS 18.0, watchOS 11.0, tvOS 18.0, visionOS 2.0, *)
-public struct FlatBuffersMessageDeserializer<
-  Message: GRPCVerifiableMessage
->: Sendable {
-  public init() {}
-
-  public func deserialize(pointer: UnsafeRawBufferPointer) throws -> Message {
-    Message.init(pointer: pointer)
-  }
-}

swift/Sources/FlatBuffers/Table.swift

@@ -49,7 +49,7 @@ public struct Table {
   /// the vtable
   /// - Parameter o: current offset
   /// - Returns: offset of field within buffer
-  public func offset(_ o: VOffset) -> Int32 {
+  public func offset(_ o: Int32) -> Int32 {
     let vtable = position &- bb.read(def: Int32.self, position: Int(position))
     return o
       < bb
@@ -57,7 +57,7 @@ public struct Table {
       ? Int32(
         bb.read(
           def: Int16.self,
-          position: Int(vtable &+ Int32(o)))) : 0
+          position: Int(vtable &+ o))) : 0
   }
 
   /// Gets the indirect offset of the current stored object
@@ -82,7 +82,7 @@ public struct Table {
   /// - Parameters:
   ///   - type: Type of Element that needs to be read from the buffer
   ///   - o: Offset of the Element
-  public func readBuffer<T: BitwiseCopyable>(of type: T.Type, at o: Int32) -> T {
+  public func readBuffer<T>(of type: T.Type, at o: Int32) -> T {
     bb.read(def: T.self, position: Int(o &+ position))
   }
 
@@ -106,13 +106,13 @@ public struct Table {
   /// This should only be used by `Scalars`
   /// - Parameter off: Readable offset
   /// - Returns: Returns a vector of type [T]
-  public func getVector<T>(at off: VOffset) -> [T]? {
+  public func getVector<T>(at off: Int32) -> [T]? {
     let o = offset(off)
     guard o != 0 else { return nil }
     return bb.readSlice(index: Int(vector(at: o)), count: Int(vector(count: o)))
   }
 
-  public func vector<T>(at off: VOffset, byteSize: Int) -> FlatbufferVector<T> {
+  public func vector<T>(at off: Int32, byteSize: Int) -> FlatbufferVector<T> {
     let off = offset(off)
     return FlatbufferVector(
       bb: bb,
@@ -122,7 +122,7 @@ public struct Table {
   }
 
   public func unionVector(
-    at off: VOffset,
+    at off: Int32,
     byteSize: Int) -> UnionFlatbufferVector
   {
     let off = offset(off)
@@ -146,7 +146,7 @@ public struct Table {
   /// - Returns: Returns a pointer to the underlying data
   @inline(__always)
   public func withUnsafePointerToSlice<T>(
-    at off: VOffset,
+    at off: Int32,
     body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T?
   {
     let o = offset(off)

swift/Sources/FlatBuffers/TableVerifier.swift

@@ -115,7 +115,7 @@ public struct TableVerifier {
     unionKeyName: String,
     fieldName: String,
     required: Bool,
-    completion: (inout Verifier, T, Int) throws -> Void) throws
+    completion: @escaping (inout Verifier, T, Int) throws -> Void) throws
     where T: UnionEnum
   {
     let keyPos = try dereference(key)

swift/Sources/FlatBuffers/Vectors/FlatbufferVector.swift

@@ -68,7 +68,7 @@ public struct FlatbufferVector<
 }
 
 extension FlatbufferVector: Encodable where Element: Encodable {
-  public func encode(to encoder: any Encoder) throws {
+  public func encode(to encoder: Encoder) throws {
     var container = encoder.unkeyedContainer()
     for element in self {
       try container.encode(element)

swift/Sources/FlatBuffers/Vectors/UnionFlatbufferVector.swift

@@ -49,8 +49,8 @@ public struct UnionFlatbufferVector {
 
   public subscript(
     position: Int,
-    Type: any FlatbuffersVectorInitializable
+    Type: FlatbuffersVectorInitializable
-      .Type) -> any FlatbuffersVectorInitializable
+      .Type) -> FlatbuffersVectorInitializable
   {
     guard position < count else {
       fatalError(

swift/Sources/FlatBuffers/Verifiable.swift

@@ -56,15 +56,8 @@ extension Verifiable {
     let len: UOffset = try verifier.getValue(at: position)
     let intLen = Int(len)
     let start = Int(clamping: (position &+ MemoryLayout<Int32>.size).magnitude)
-    let byteCount = intLen.multipliedReportingOverflow(
-      by: MemoryLayout<T>.size)
-    guard !byteCount.overflow else {
-      throw FlatbuffersErrors.outOfBounds(
-        position: UInt.max,
-        end: verifier.capacity)
-    }
     try verifier.isAligned(position: start, type: type.self)
-    try verifier.rangeInBuffer(position: start, size: byteCount.partialValue)
+    try verifier.rangeInBuffer(position: start, size: intLen)
     return (start, intLen)
   }
 }

swift/Sources/FlatBuffers/Verifier.swift

@@ -163,7 +163,7 @@ public struct Verifier {
   /// - Parameter position: Current position to be read
   /// - Throws: `inBuffer` errors
   /// - Returns: a value of type `T` usually a `VTable` or a table offset
-  internal func getValue<T: BitwiseCopyable>(at position: Int) throws -> T {
+  internal func getValue<T>(at position: Int) throws -> T {
     try inBuffer(position: position, of: T.self)
     return _buffer.read(def: T.self, position: position)
   }

swift/Sources/FlatBuffers/_InternalByteBuffer.swift

@@ -30,7 +30,7 @@ struct _InternalByteBuffer {
   @usableFromInline
   final class Storage {
     /// pointer to the start of the buffer object in memory
-    @exclusivity(unchecked) private(set) var memory: UnsafeMutableRawPointer
+    private(set) var memory: UnsafeMutableRawPointer
 
     @usableFromInline
     init(count: Int, alignment: Int) {
@@ -146,7 +146,7 @@ struct _InternalByteBuffer {
   #if !os(WASI)
   @inline(__always)
   @usableFromInline
-  mutating func push(bytes: any ContiguousBytes) {
+  mutating func push(bytes: ContiguousBytes) {
     bytes.withUnsafeBytes { ptr in
       ensureSpace(size: ptr.count)
       memcpy(
@@ -333,7 +333,6 @@ struct _InternalByteBuffer {
 
   @discardableResult
   @inline(__always)
-  @usableFromInline
   func readWithUnsafeRawPointer<T>(
     position: Int,
     _ body: (UnsafeRawPointer) throws -> T) rethrows -> T

swift/Sources/FlexBuffers/ByteBuffer.swift

@@ -27,32 +27,15 @@ public struct ByteBuffer {
   @usableFromInline
   final class Storage {
     @usableFromInline
-    @frozen enum Blob: ~Copyable {
+    enum Blob {
       #if !os(WASI)
       case data(Data)
-      case bytes(any ContiguousBytes)
+      case bytes(ContiguousBytes)
       #endif
 
       case byteBuffer(_InternalByteBuffer)
       case array([UInt8])
       case pointer(UnsafeMutableRawPointer)
-
-      init(_ other: borrowing Blob) {
-        switch other {
-        #if !os(WASI)
-        case .data(let data):
-          self = .data(data)
-        case .bytes(let contiguousBytes):
-          self = .bytes(contiguousBytes)
-        #endif
-        case .byteBuffer(let internalByteBuffer):
-          self = .byteBuffer(internalByteBuffer)
-        case .array(let array):
-          self = .array(array)
-        case .pointer(let unsafeMutableRawPointer):
-          self = .pointer(unsafeMutableRawPointer)
-        }
-      }
     }
 
     /// This storage doesn't own the memory, therefore, we won't deallocate on deinit.
@@ -61,7 +44,7 @@ public struct ByteBuffer {
     private let capacity: Int
     /// Retained blob of data that requires the storage to retain a pointer to.
     @usableFromInline
-    let retainedBlob: Blob
+    var retainedBlob: Blob
 
     @usableFromInline
     init(count: Int) {
@@ -74,9 +57,9 @@ public struct ByteBuffer {
     }
 
     @usableFromInline
-    init(blob: borrowing Blob, capacity count: Int) {
+    init(blob: Blob, capacity count: Int) {
       capacity = count
-      retainedBlob = .init(blob)
+      retainedBlob = blob
       isOwned = false
     }
 
@@ -293,7 +276,7 @@ public struct ByteBuffer {
   ///   - removeBytes: Removes a number of bytes from the current size
   @inline(__always)
   init(
-    blob: borrowing Storage.Blob,
+    blob: Storage.Blob,
     count: Int,
     removing removeBytes: Int)
   {
@@ -333,7 +316,7 @@ public struct ByteBuffer {
   ///   - def: Type of the object
   ///   - position: the index of the object in the buffer
   @inline(__always)
-  public func read<T: BitwiseCopyable>(def: T.Type, position: Int) -> T {
+  public func read<T>(def: T.Type, position: Int) -> T {
     _storage.readWithUnsafeRawPointer(position: position) {
       $0.bindMemory(to: T.self, capacity: 1)
         .pointee
@@ -377,10 +360,10 @@ public struct ByteBuffer {
   @inline(__always)
   func readSizedScalar<
     T: BinaryInteger,
-    T1: BinaryInteger & BitwiseCopyable,
+    T1: BinaryInteger,
-    T2: BinaryInteger & BitwiseCopyable,
+    T2: BinaryInteger,
-    T3: BinaryInteger & BitwiseCopyable,
+    T3: BinaryInteger,
-    T4: BinaryInteger & BitwiseCopyable
+    T4: BinaryInteger
   >(
     def: T.Type,
     t1: T1.Type,

swift/Sources/FlexBuffers/FlexBufferType.swift

@@ -16,7 +16,7 @@
 
 import Foundation
 
-public enum FlexBufferType: UInt64, Sendable {
+public enum FlexBufferType: UInt64 {
   case null = 0
   /// Variable width signed integer: `Int8, Int16, Int32, Int64`
   case int = 1

swift/Sources/FlexBuffers/Reader/Reference.swift

@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 
-import Common
 import Foundation
 
 enum FlexBuffersErrors: Error {
@@ -24,10 +23,6 @@ enum FlexBuffersErrors: Error {
 
 @inline(__always)
 public func getRoot(buffer: ByteBuffer) throws -> Reference? {
-  assert(
-    isLitteEndian,
-    "Swift FlexBuffers currently only supports little-endian systems")
-
   let end = buffer.count
   if buffer.count < 3 {
     throw FlexBuffersErrors.sizeOfBufferIsTooSmall

swift/Sources/FlexBuffers/Utils/BitWidth.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 @usableFromInline
-enum BitWidth: UInt64, CaseIterable, Sendable {
+enum BitWidth: UInt64, CaseIterable {
   case w8 = 0
   case w16 = 1
   case w32 = 2

swift/Sources/FlexBuffers/Utils/Value.swift

@@ -20,10 +20,10 @@ import Foundation
 import Common
 #endif
 
-public struct Value: Equatable, Sendable {
+public struct Value: Equatable {
 
   @usableFromInline
-  enum Union: Equatable, Sendable {
+  enum Union: Equatable {
     case i(Int64)
     case u(UInt64)
     case f(Double)

swift/Sources/FlexBuffers/Writer/FlexBuffersWriter.swift

@@ -37,15 +37,12 @@ public struct FlexBuffersWriter {
   private var hasDuplicatedKeys = false
   private var minBitWidth: BitWidth = .w8
   private var _bb: _InternalByteBuffer
-  private var stack: Stack = Stack()
+  private var stack: [Value] = []
   private var keyPool: [Int: UInt] = [:]
   private var stringPool: [Int: UInt] = [:]
   private var flags: BuilderFlag
 
   public init(initialSize: Int = 1024, flags: BuilderFlag = .shareKeys) {
-    assert(
-      isLitteEndian,
-      "Swift FlexBuffers currently only supports little-endian systems")
     _bb = _InternalByteBuffer(initialSize: initialSize)
     self.flags = flags
   }
@@ -151,7 +148,7 @@ public struct FlexBuffersWriter {
       typed: typed,
       fixed: fixed,
       keys: nil)
-    stack.popLast(start)
+    stack = Array(stack[..<start])
     stack.append(vec)
     return vec.u
   }
@@ -220,7 +217,7 @@ public struct FlexBuffersWriter {
       typed: false,
       fixed: false,
       keys: keys)
-    stack.popLast(start)
+    stack = Array(stack[..<start])
     stack.append(vec)
     return numericCast(vec.u)
   }
@@ -724,7 +721,7 @@ public struct FlexBuffersWriter {
         assert(
           vectorType == stack[i].type,
           """
-          If you get this assert you are writing a typed vector
+          If you get this assert you are writing a typed vector 
           with elements that are not all the same type
           """)
       }
@@ -760,7 +757,7 @@ public struct FlexBuffersWriter {
     }
 
     if !fixed {
-      write(value: UInt64(count), byteWidth: byteWidth)
+      write(value: count, byteWidth: byteWidth)
     }
 
     let vloc = _bb.writerIndex
@@ -833,14 +830,13 @@ public struct FlexBuffersWriter {
       let key, value: Value
     }
 
-    stack.withUnsafeMutableBytes(start: start) { buffer in
+    stack[start...].withUnsafeMutableBytes { buffer in
       var ptr = buffer.assumingMemoryBound(to: TwoValue.self)
       ptr.sort { a, b in
         let aMem = _bb.memory.advanced(by: numericCast(a.key.u))
           .assumingMemoryBound(to: CChar.self)
         let bMem = _bb.memory.advanced(by: numericCast(b.key.u))
           .assumingMemoryBound(to: CChar.self)
-
         let comp = strcmp(aMem, bMem)
         if (comp == 0) && a != b { hasDuplicatedKeys = true }
         return comp < 0
@@ -901,132 +897,3 @@ extension FlexBuffersWriter {
     return endMap(start: start)
   }
 }
-
-fileprivate struct Stack: RandomAccessCollection {
-  typealias Element = Value
-  typealias Index = Int
-
-  private final class Storage {
-    var memory: UnsafeMutableRawPointer
-
-    init(capacity: Int, alignment: Int) {
-      memory = .allocate(byteCount: capacity, alignment: alignment)
-      memset(memory, 0, capacity)
-    }
-
-    deinit {
-      memory.deallocate()
-    }
-  }
-
-  private static let initialCapacity = 10 &* MemoryLayout<Value>.stride
-  private let storage: Storage
-  private var capacity: Int
-  private(set) var count: Int
-
-  var startIndex: Int {
-    0
-  }
-
-  var endIndex: Int {
-    count
-  }
-
-  init() {
-    count = 0
-    capacity = Self.initialCapacity
-
-    storage = Storage(
-      capacity: capacity,
-      alignment: MemoryLayout<Value>.alignment)
-  }
-
-  @inline(__always)
-  subscript(position: Int) -> Value {
-    get {
-      storage.memory.advanced(by: position &* MemoryLayout<Value>.stride)
-        .assumingMemoryBound(to: Value.self).pointee
-    }
-    set {
-      storage.memory.advanced(by: position &* MemoryLayout<Value>.stride)
-        .assumingMemoryBound(to: Value.self).pointee = newValue
-    }
-  }
-
-  @inline(__always)
-  mutating func popLast(_ val: Int) {
-    count = if val < 0 {
-      0
-    } else {
-      val
-    }
-  }
-
-  mutating func append(_ value: Value) {
-    let writePosition = count &* MemoryLayout<Value>.stride
-    if writePosition >= capacity {
-      reallocate(writePosition: writePosition)
-    }
-
-    storage.memory.advanced(by: writePosition).storeBytes(
-      of: value,
-      as: Value.self)
-    count += 1
-  }
-
-  mutating func removeAll(keepingCapacity keepCapacity: Bool = false) {
-    count = 0
-    if !keepCapacity {
-      let ptr = storage.memory
-      defer { ptr.deallocate() }
-
-      capacity = Self.initialCapacity
-      storage.memory = UnsafeMutableRawPointer.allocate(
-        byteCount: capacity,
-        alignment: MemoryLayout<Value>.alignment)
-    }
-    memset(storage.memory, 0, capacity)
-  }
-
-  @discardableResult
-  mutating func withUnsafeMutableBytes<R>(
-    start: Int,
-    _ body: (UnsafeMutableRawBufferPointer) throws -> R) rethrows -> R
-  {
-    let startingPosition = start &* MemoryLayout<Value>.stride
-    let pointer = storage.memory.advanced(by: startingPosition)
-    return try body(UnsafeMutableRawBufferPointer(
-      start: pointer,
-      count: (count &* MemoryLayout<Value>.stride) &- startingPosition))
-  }
-
-  @discardableResult
-  mutating func withUnsafeMutableBytes<R>(
-    _ body: (UnsafeMutableRawBufferPointer) throws
-      -> R) rethrows -> R
-  {
-    return try body(UnsafeMutableRawBufferPointer(
-      start: storage.memory,
-      count: count &* MemoryLayout<Value>.stride))
-  }
-
-  mutating private func reallocate(writePosition: Int) {
-    while capacity <= writePosition {
-      capacity = capacity << 1
-    }
-
-    /// solution take from Apple-NIO
-    capacity = capacity.convertToPowerofTwo
-
-    let newData = UnsafeMutableRawPointer.allocate(
-      byteCount: capacity,
-      alignment: MemoryLayout<Value>.alignment)
-    memset(newData, 0, capacity)
-    memcpy(
-      newData,
-      storage.memory,
-      writePosition)
-    storage.memory.deallocate()
-    storage.memory = newData
-  }
-}

swift/Sources/FlexBuffers/_InternalByteBuffer.swift

@@ -31,7 +31,7 @@ struct _InternalByteBuffer {
   @usableFromInline
   final class Storage {
     /// pointer to the start of the buffer object in memory
-    @exclusivity(unchecked) private(set) var memory: UnsafeMutableRawPointer
+    var memory: UnsafeMutableRawPointer
 
     @usableFromInline
     init(count: Int, alignment: Int) {
@@ -60,7 +60,7 @@ struct _InternalByteBuffer {
       let newData = UnsafeMutableRawPointer.allocate(
         byteCount: capacity,
         alignment: alignment)
-      memset(newData, 0, capacity)
+      memset(newData, 0, capacity &- writerSize)
       memcpy(
         newData,
         memory,

tests/BUILD.bazel

@@ -52,7 +52,6 @@ cc_test(
         "monster_test.cpp",
         "monster_test.h",
         "monster_test_bfbs_generated.h",
-        "cross_namespace_pack_test_generated.h",
         "namespace_test/namespace_test1_generated.h",
         "namespace_test/namespace_test2_generated.h",
         "native_inline_table_test_generated.h",
@@ -79,6 +78,9 @@ cc_test(
         "vector_table_naked_ptr/vector_table_naked_ptr_generated.h",
         "vector_table_naked_ptr_test.h",
         "vector_table_naked_ptr_test.cpp",
+        "test_vector_type.h",
+        "cpp_vector_type_test.h",
+        "cpp_vector_type_test.cpp",
     ],
     copts = [
         "-DFLATBUFFERS_TRACK_VERIFIER_BUFFER_SIZE",
@@ -137,7 +139,7 @@ cc_test(
     deps = [
         ":alignment_test_cc_fbs",
         ":arrays_test_cc_fbs",
-        ":cross_namespace_pack_test_cc_fbs",
+        ":cpp_vector_type_cc_fbs",
         ":default_vectors_strings_test_cc_fbs",
         ":monster_extra_cc_fbs",
         ":monster_test_cc_fbs",
@@ -263,17 +265,6 @@ flatbuffer_cc_library(
     ],
 )
 
-flatbuffer_cc_library(
-    name = "cross_namespace_pack_test_cc_fbs",
-    srcs = ["cross_namespace_pack_test.fbs"],
-    flatc_args = [
-        "--gen-object-api",
-        "--gen-mutable",
-        "--gen-compare",
-        "--reflect-names",
-    ],
-)
-
 flatbuffer_cc_library(
     name = "native_type_test_cc_fbs",
     srcs = ["native_type_test.fbs"],
@@ -284,6 +275,19 @@ flatbuffer_cc_library(
     ],
 )
 
+flatbuffer_cc_library(
+    name = "cpp_vector_type_cc_fbs",
+    srcs = ["cpp_vector_type.fbs"],
+    flatc_args = [
+        "--gen-compare",
+        "--gen-mutable",
+        "--gen-object-api",
+        "--reflect-names",
+        "--cpp-include test_vector_type.h",
+        "--cpp-vector-type ::flatbuffers::tests::CustomVector",
+    ],
+)
+
 flatbuffer_cc_library(
     name = "alignment_test_cc_fbs",
     srcs = ["alignment_test.fbs"],

tests/FlatBuffers.Test/FlatBuffers.Test.csproj

@@ -106,9 +106,6 @@
     <Compile Include="..\MyGame\Example\NestedStruct.cs">
       <Link>MyGame\Example\NestedStruct.cs</Link>
     </Compile>
-    <Compile Include="..\MyGame\Example\LargeArrayStruct.cs">
-      <Link>MyGame\Example\LargeArrayStruct.cs</Link>
-    </Compile>
     <Compile Include="..\MyGame\Example\LongEnum.cs">
       <Link>MyGame\Example\LongEnum.cs</Link>
     </Compile>

tests/MyGame/Example/LargeArrayStruct.cs

@@ -1,150 +0,0 @@
-// <auto-generated>
-//  automatically generated by the FlatBuffers compiler, do not modify
-// </auto-generated>
-
-namespace MyGame.Example
-{
-
-using global::System;
-using global::System.Collections.Generic;
-using global::Google.FlatBuffers;
-
-public struct LargeArrayStruct : IFlatbufferObject
-{
-  private Struct __p;
-  public ByteBuffer ByteBuffer { get { return __p.bb; } }
-  public void __init(int _i, ByteBuffer _bb) { __p = new Struct(_i, _bb); }
-  public LargeArrayStruct __assign(int _i, ByteBuffer _bb) { __init(_i, _bb); return this; }
-
-  public byte D(int j) { return __p.bb.Get(__p.bb_pos + 0 + j * 1); }
-  public const int DLength = 64;
-#if ENABLE_SPAN_T
-  public Span<byte> GetDBytes() { return __p.bb.ToSpan(__p.bb_pos + 0, 64); }
-#else
-  public ArraySegment<byte>? GetDBytes() { return __p.bb.ToArraySegment(__p.bb_pos + 0, 64);}
-#endif
-  public void MutateD(int j, byte d) { __p.bb.Put(__p.bb_pos + 0 + j * 1, d); }
-  public float E(int j) { return __p.bb.GetFloat(__p.bb_pos + 64 + j * 4); }
-  public const int ELength = 64;
-#if ENABLE_SPAN_T
-  public Span<float> GetEBytes() { return System.Runtime.InteropServices.MemoryMarshal.Cast<byte, float>(__p.bb.ToSpan(__p.bb_pos + 64, 256)); }
-#else
-  public ArraySegment<byte>? GetEBytes() { return __p.bb.ToArraySegment(__p.bb_pos + 64, 256);}
-#endif
-  public void MutateE(int j, float e) { __p.bb.PutFloat(__p.bb_pos + 64 + j * 4, e); }
-  public bool F(int j) { return 0!=__p.bb.Get(__p.bb_pos + 320 + j * 1); }
-  public const int FLength = 64;
-#if ENABLE_SPAN_T
-  public Span<bool> GetFBytes() { return System.Runtime.InteropServices.MemoryMarshal.Cast<byte, bool>(__p.bb.ToSpan(__p.bb_pos + 320, 64)); }
-#else
-  public ArraySegment<byte>? GetFBytes() { return __p.bb.ToArraySegment(__p.bb_pos + 320, 64);}
-#endif
-  public void MutateF(int j, bool f) { __p.bb.Put(__p.bb_pos + 320 + j * 1, (byte)(f ? 1 : 0)); }
-  public MyGame.Example.NestedStruct G(int j) { return (new MyGame.Example.NestedStruct()).__assign(__p.bb_pos + 384 + j * 32, __p.bb); }
-  public MyGame.Example.TestEnum H(int j) { return (MyGame.Example.TestEnum)__p.bb.GetSbyte(__p.bb_pos + 2432 + j * 1); }
-  public const int HLength = 64;
-#if ENABLE_SPAN_T
-  public Span<MyGame.Example.TestEnum> GetHBytes() { return System.Runtime.InteropServices.MemoryMarshal.Cast<byte, MyGame.Example.TestEnum>(__p.bb.ToSpan(__p.bb_pos + 2432, 64)); }
-#else
-  public ArraySegment<byte>? GetHBytes() { return __p.bb.ToArraySegment(__p.bb_pos + 2432, 64);}
-#endif
-  public void MutateH(int j, MyGame.Example.TestEnum h) { __p.bb.PutSbyte(__p.bb_pos + 2432 + j * 1, (sbyte)h); }
-
-  public static Offset<MyGame.Example.LargeArrayStruct> CreateLargeArrayStruct(FlatBufferBuilder builder, byte[] D, float[] E, bool[] F, int[,] g_A, MyGame.Example.TestEnum[] g_B, MyGame.Example.TestEnum[,] g_C, long[,] g_D, MyGame.Example.TestEnum[] H) {
-    builder.Prep(8, 2496);
-    for (int _idx0 = 64; _idx0 > 0; _idx0--) {
-      builder.PutSbyte((sbyte)H[_idx0-1]);
-    }
-    for (int _idx0 = 64; _idx0 > 0; _idx0--) {
-      builder.Prep(8, 32);
-      for (int _idx1 = 2; _idx1 > 0; _idx1--) {
-        builder.PutLong(g_D[_idx0-1,_idx1-1]);
-      }
-      builder.Pad(5);
-      for (int _idx1 = 2; _idx1 > 0; _idx1--) {
-        builder.PutSbyte((sbyte)g_C[_idx0-1,_idx1-1]);
-      }
-      builder.PutSbyte((sbyte)g_B[_idx0-1]);
-      for (int _idx1 = 2; _idx1 > 0; _idx1--) {
-        builder.PutInt(g_A[_idx0-1,_idx1-1]);
-      }
-    }
-    for (int _idx0 = 64; _idx0 > 0; _idx0--) {
-      builder.PutBool(F[_idx0-1]);
-    }
-    for (int _idx0 = 64; _idx0 > 0; _idx0--) {
-      builder.PutFloat(E[_idx0-1]);
-    }
-    for (int _idx0 = 64; _idx0 > 0; _idx0--) {
-      builder.PutByte(D[_idx0-1]);
-    }
-    return new Offset<MyGame.Example.LargeArrayStruct>(builder.Offset);
-  }
-  public LargeArrayStructT UnPack() {
-    var _o = new LargeArrayStructT();
-    this.UnPackTo(_o);
-    return _o;
-  }
-  public void UnPackTo(LargeArrayStructT _o) {
-    _o.D = new byte[64];
-    for (var _j = 0; _j < 64; ++_j) { _o.D[_j] = this.D(_j); }
-    _o.E = new float[64];
-    for (var _j = 0; _j < 64; ++_j) { _o.E[_j] = this.E(_j); }
-    _o.F = new bool[64];
-    for (var _j = 0; _j < 64; ++_j) { _o.F[_j] = this.F(_j); }
-    _o.G = new MyGame.Example.NestedStructT[64];
-    for (var _j = 0; _j < 64; ++_j) { _o.G[_j] = this.G(_j).UnPack(); }
-    _o.H = new MyGame.Example.TestEnum[64];
-    for (var _j = 0; _j < 64; ++_j) { _o.H[_j] = this.H(_j); }
-  }
-  public static Offset<MyGame.Example.LargeArrayStruct> Pack(FlatBufferBuilder builder, LargeArrayStructT _o) {
-    if (_o == null) return default(Offset<MyGame.Example.LargeArrayStruct>);
-    var _d = _o.D;
-    var _e = _o.E;
-    var _f = _o.F;
-    var _g_a = new int[64,2];
-    for (var idx0 = 0; idx0 < 64; ++idx0) {for (var idx1 = 0; idx1 < 2; ++idx1) {_g_a[idx0,idx1] = _o.G[idx0].A[idx1];}}
-    var _g_b = new MyGame.Example.TestEnum[64];
-    for (var idx0 = 0; idx0 < 64; ++idx0) {_g_b[idx0] = _o.G[idx0].B;}
-    var _g_c = new MyGame.Example.TestEnum[64,2];
-    for (var idx0 = 0; idx0 < 64; ++idx0) {for (var idx1 = 0; idx1 < 2; ++idx1) {_g_c[idx0,idx1] = _o.G[idx0].C[idx1];}}
-    var _g_d = new long[64,2];
-    for (var idx0 = 0; idx0 < 64; ++idx0) {for (var idx1 = 0; idx1 < 2; ++idx1) {_g_d[idx0,idx1] = _o.G[idx0].D[idx1];}}
-    var _h = _o.H;
-    return CreateLargeArrayStruct(
-      builder,
-      _d,
-      _e,
-      _f,
-      _g_a,
-      _g_b,
-      _g_c,
-      _g_d,
-      _h);
-  }
-}
-
-public class LargeArrayStructT
-{
-  [Newtonsoft.Json.JsonProperty("d")]
-  public byte[] D { get; set; }
-  [Newtonsoft.Json.JsonProperty("e")]
-  public float[] E { get; set; }
-  [Newtonsoft.Json.JsonProperty("f")]
-  public bool[] F { get; set; }
-  [Newtonsoft.Json.JsonProperty("g")]
-  public MyGame.Example.NestedStructT[] G { get; set; }
-  [Newtonsoft.Json.JsonProperty("h")]
-  public MyGame.Example.TestEnum[] H { get; set; }
-
-  public LargeArrayStructT() {
-    this.D = new byte[64];
-    this.E = new float[64];
-    this.F = new bool[64];
-    this.G = new MyGame.Example.NestedStructT[64];
-    this.H = new MyGame.Example.TestEnum[64];
-  }
-}
-
-
-}

tests/MyGame/Example/LargeArrayStruct.java

@@ -1,117 +0,0 @@
-// automatically generated by the FlatBuffers compiler, do not modify
-
-package MyGame.Example;
-
-import com.google.flatbuffers.BaseVector;
-import com.google.flatbuffers.BooleanVector;
-import com.google.flatbuffers.ByteVector;
-import com.google.flatbuffers.Constants;
-import com.google.flatbuffers.DoubleVector;
-import com.google.flatbuffers.FlatBufferBuilder;
-import com.google.flatbuffers.FloatVector;
-import com.google.flatbuffers.IntVector;
-import com.google.flatbuffers.LongVector;
-import com.google.flatbuffers.ShortVector;
-import com.google.flatbuffers.StringVector;
-import com.google.flatbuffers.Struct;
-import com.google.flatbuffers.UnionVector;
-import java.nio.ByteBuffer;
-import java.nio.ByteOrder;
-
-@SuppressWarnings("unused")
-public final class LargeArrayStruct extends Struct {
-  public void __init(int _i, ByteBuffer _bb) { __reset(_i, _bb); }
-  public LargeArrayStruct __assign(int _i, ByteBuffer _bb) { __init(_i, _bb); return this; }
-
-  public int d(int j) { return bb.get(bb_pos + 0 + j * 1); }
-  public void mutateD(int j, int d) { bb.put(bb_pos + 0 + j * 1, (byte) d); }
-  public float e(int j) { return bb.getFloat(bb_pos + 64 + j * 4); }
-  public void mutateE(int j, float e) { bb.putFloat(bb_pos + 64 + j * 4, e); }
-  public boolean f(int j) { return 0!=bb.get(bb_pos + 320 + j * 1); }
-  public void mutateF(int j, boolean f) { bb.put(bb_pos + 320 + j * 1, (byte)(f ? 1 : 0)); }
-  public MyGame.Example.NestedStruct g(int j) { return g(new MyGame.Example.NestedStruct(), j); }
-  public MyGame.Example.NestedStruct g(MyGame.Example.NestedStruct obj, int j) { return obj.__assign(bb_pos + 384 + j * 32, bb); }
-  public byte h(int j) { return bb.get(bb_pos + 2432 + j * 1); }
-  public void mutateH(int j, byte h) { bb.put(bb_pos + 2432 + j * 1, h); }
-
-  public static int createLargeArrayStruct(FlatBufferBuilder builder, int[] d, float[] e, boolean[] f, int[][] g_a, byte[] g_b, byte[][] g_c, long[][] g_d, byte[] h) {
-    builder.prep(8, 2496);
-    for (int _idx0 = 64; _idx0 > 0; _idx0--) {
-      builder.putByte(h[_idx0-1]);
-    }
-    for (int _idx0 = 64; _idx0 > 0; _idx0--) {
-      builder.prep(8, 32);
-      for (int _idx1 = 2; _idx1 > 0; _idx1--) {
-        builder.putLong(g_d[_idx0-1][_idx1-1]);
-      }
-      builder.pad(5);
-      for (int _idx1 = 2; _idx1 > 0; _idx1--) {
-        builder.putByte(g_c[_idx0-1][_idx1-1]);
-      }
-      builder.putByte(g_b[_idx0-1]);
-      for (int _idx1 = 2; _idx1 > 0; _idx1--) {
-        builder.putInt(g_a[_idx0-1][_idx1-1]);
-      }
-    }
-    for (int _idx0 = 64; _idx0 > 0; _idx0--) {
-      builder.putBoolean(f[_idx0-1]);
-    }
-    for (int _idx0 = 64; _idx0 > 0; _idx0--) {
-      builder.putFloat(e[_idx0-1]);
-    }
-    for (int _idx0 = 64; _idx0 > 0; _idx0--) {
-      builder.putByte((byte) d[_idx0-1]);
-    }
-    return builder.offset();
-  }
-
-  public static final class Vector extends BaseVector {
-    public Vector __assign(int _vector, int _element_size, ByteBuffer _bb) { __reset(_vector, _element_size, _bb); return this; }
-
-    public LargeArrayStruct get(int j) { return get(new LargeArrayStruct(), j); }
-    public LargeArrayStruct get(LargeArrayStruct obj, int j) {  return obj.__assign(__element(j), bb); }
-  }
-  public LargeArrayStructT unpack() {
-    LargeArrayStructT _o = new LargeArrayStructT();
-    unpackTo(_o);
-    return _o;
-  }
-  public void unpackTo(LargeArrayStructT _o) {
-    int[] _oD = _o.getD();
-    for (int _j = 0; _j < 64; ++_j) { _oD[_j] = d(_j); }
-    float[] _oE = _o.getE();
-    for (int _j = 0; _j < 64; ++_j) { _oE[_j] = e(_j); }
-    boolean[] _oF = _o.getF();
-    for (int _j = 0; _j < 64; ++_j) { _oF[_j] = f(_j); }
-    MyGame.Example.NestedStructT[] _oG = _o.getG();
-    for (int _j = 0; _j < 64; ++_j) { _oG[_j] = g(_j).unpack(); }
-    byte[] _oH = _o.getH();
-    for (int _j = 0; _j < 64; ++_j) { _oH[_j] = h(_j); }
-  }
-  public static int pack(FlatBufferBuilder builder, LargeArrayStructT _o) {
-    if (_o == null) return 0;
-    int[] _d = _o.getD();
-    float[] _e = _o.getE();
-    boolean[] _f = _o.getF();
-    int[][] _g_a = new int[64][2];
-    for (int idx0 = 0; idx0 < 64; ++idx0) {for (int idx1 = 0; idx1 < 2; ++idx1) {_g_a[idx0][idx1] = _o.getG()[idx0].getA()[idx1];}}
-    byte[] _g_b = new byte[64];
-    for (int idx0 = 0; idx0 < 64; ++idx0) {_g_b[idx0] = _o.getG()[idx0].getB();}
-    byte[][] _g_c = new byte[64][2];
-    for (int idx0 = 0; idx0 < 64; ++idx0) {for (int idx1 = 0; idx1 < 2; ++idx1) {_g_c[idx0][idx1] = _o.getG()[idx0].getC()[idx1];}}
-    long[][] _g_d = new long[64][2];
-    for (int idx0 = 0; idx0 < 64; ++idx0) {for (int idx1 = 0; idx1 < 2; ++idx1) {_g_d[idx0][idx1] = _o.getG()[idx0].getD()[idx1];}}
-    byte[] _h = _o.getH();
-    return createLargeArrayStruct(
-      builder,
-      _d,
-      _e,
-      _f,
-      _g_a,
-      _g_b,
-      _g_c,
-      _g_d,
-      _h);
-  }
-}
-