Bump the npm_and_yarn group across 2 directories with 5 updates

Bumps the npm_and_yarn group with 4 updates in the / directory: [@humanfs/node](https://github.com/humanwhocodes/humanfs/tree/HEAD/packages/node), [brace-expansion](https://github.com/juliangruber/brace-expansion), [js-yaml](https://github.com/nodeca/js-yaml) and [picomatch](https://github.com/micromatch/picomatch).
Bumps the npm_and_yarn group with 1 update in the /tests/ts/bazel_repository_test_dir directory: [lodash](https://github.com/lodash/lodash).


Updates `@humanfs/node` from 0.16.6 to 0.16.8
- [Release notes](https://github.com/humanwhocodes/humanfs/releases)
- [Changelog](https://github.com/humanwhocodes/humanfs/blob/main/packages/node/CHANGELOG.md)
- [Commits](https://github.com/humanwhocodes/humanfs/commits/node-v0.16.8/packages/node)

Updates `brace-expansion` from 1.1.12 to 1.1.21
- [Release notes](https://github.com/juliangruber/brace-expansion/releases)
- [Commits](https://github.com/juliangruber/brace-expansion/compare/v1.1.12...v1.1.21)

Updates `js-yaml` from 4.1.1 to 4.3.2
- [Changelog](https://github.com/nodeca/js-yaml/blob/4.3.2/CHANGELOG.md)
- [Commits](https://github.com/nodeca/js-yaml/compare/4.1.1...4.3.2)

Updates `picomatch` from 2.3.1 to 2.3.2
- [Release notes](https://github.com/micromatch/picomatch/releases)
- [Changelog](https://github.com/micromatch/picomatch/blob/master/CHANGELOG.md)
- [Commits](https://github.com/micromatch/picomatch/compare/2.3.1...2.3.2)

Updates `lodash` from 4.17.23 to 4.18.1
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/compare/4.17.23...4.18.1)

---
updated-dependencies:
- dependency-name: "@humanfs/node"
  dependency-version: 0.16.8
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: brace-expansion
  dependency-version: 1.1.21
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: js-yaml
  dependency-version: 4.3.2
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: picomatch
  dependency-version: 2.3.2
  dependency-type: indirect
  dependency-group: npm_and_yarn
- dependency-name: lodash
  dependency-version: 4.18.1
  dependency-type: direct:development
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/build.yml

@@ -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
+      run: npm install -g pnpm@10
     - name: deps
       run: pnpm i
     - name: compile

Package.swift

@@ -75,6 +75,17 @@ extension Array where Element == Package.Dependency {
       .package(
         url: "https://github.com/grpc/grpc-swift-nio-transport.git",
         from: "2.0.0"),
+      // swift-crypto arrives through grpc-swift-nio-transport -> swift-nio-ssl
+      // and is otherwise resolved afresh on every build, because this package
+      // ships no Package.resolved. 5.x asks for swift-tools-version 6.2, so only
+      // the 6.2 CI job selects it - and then fails to compile it, because 5.x
+      // uses `@nonexhaustive`, which the 6.2.x toolchains do not accept yet.
+      // Stay on the last 4.x release that still builds with every toolchain in
+      // the Swift CI matrix (4.3.0 declares swift-tools-version 6.0; 4.4+ asks
+      // for 6.1 and would drop the 6.0 job).
+      .package(
+        url: "https://github.com/apple/swift-crypto.git",
+        "4.0.0" ..< "4.4.0"),
     ]
     #endif
   }

benchmarks/swift/Benchmarks/FlatbuffersBenchmarks/FlatbuffersBenchmarks.swift

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

@@ -0,0 +1,174 @@
+/*
+ * 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

@@ -39,4 +39,14 @@ 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"),
+      ]),
   ])

include/flatbuffers/base.h

@@ -271,7 +271,7 @@ namespace flatbuffers {
   #if (defined(_MSC_VER) && _MSC_VER >= 1800) || \
       (defined(__ANDROID__) && defined(__ANDROID_API__) && __ANDROID_API__>= 26) || \
       (defined(_XOPEN_VERSION) && (_XOPEN_VERSION >= 700)) && \
-      !defined(__Fuchsia__)
+      !defined(__Fuchsia__) && (!defined(__linux__) || defined(__GLIBC__))
     #define FLATBUFFERS_LOCALE_INDEPENDENT 1
   #else
     #define FLATBUFFERS_LOCALE_INDEPENDENT 0

lobster/flatbuffers.lobster

@@ -24,15 +24,14 @@ class handle:
 struct offset:
     o:int
 
-enum sizeof:
-    sz_8 = 1
-    sz_16 = 2
-    sz_32 = 4
-    sz_64 = 8
-    sz_voffset = 2
-    sz_uoffset = 4
-    sz_soffset = 4
-    sz_metadata_fields = 2
+let sz_8 = 1
+let sz_16 = 2
+let sz_32 = 4
+let sz_64 = 8
+let sz_voffset = 2
+let sz_uoffset = 4
+let sz_soffset = 4
+let sz_metadata_fields = 2
 
 class builder:
     buf = "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"

pnpm-lock.yaml

@@ -16,22 +16,22 @@ importers:
         version: 24.0.3
       '@typescript-eslint/eslint-plugin':
         specifier: ^8.34.1
-        version: 8.34.1(@typescript-eslint/parser@8.34.1(eslint@9.29.0)(typescript@5.8.3))(eslint@9.29.0)(typescript@5.8.3)
+        version: 8.34.1(@typescript-eslint/parser@8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3))(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)
       '@typescript-eslint/parser':
         specifier: ^8.34.1
-        version: 8.34.1(eslint@9.29.0)(typescript@5.8.3)
+        version: 8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)
       esbuild:
         specifier: ^0.25.5
         version: 0.25.5
       eslint:
         specifier: ^9.29.0
-        version: 9.29.0
+        version: 9.29.0(supports-color@7.2.0)
       typescript:
         specifier: 5.8.3
         version: 5.8.3
       typescript-eslint:
         specifier: ^8.34.1
-        version: 8.34.1(eslint@9.29.0)(typescript@5.8.3)
+        version: 8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)
 
   tests/ts:
     dependencies:
@@ -239,22 +239,22 @@ packages:
     resolution: {integrity: sha512-Z5kJ+wU3oA7MMIqVR9tyZRtjYPr4OC004Q4Rw7pgOKUOKkJfZ3O24nz3WYfGRpMDNmcOi3TwQOmgm7B7Tpii0w==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
 
-  '@humanfs/core@0.19.1':
-    resolution: {integrity: sha512-5DyQ4+1JEUzejeK1JGICcideyfUbGixgS9jNgex5nqkW+cY7WZhxBigmieN5Qnw9ZosSNVC9KQKyb+GUaGyKUA==}
+  '@humanfs/core@0.19.2':
+    resolution: {integrity: sha512-UhXNm+CFMWcbChXywFwkmhqjs3PRCmcSa/hfBgLIb7oQ5HNb1wS0icWsGtSAUNgefHeI+eBrA8I1fxmbHsGdvA==}
     engines: {node: '>=18.18.0'}
 
-  '@humanfs/node@0.16.6':
-    resolution: {integrity: sha512-YuI2ZHQL78Q5HbhDiBA1X4LmYdXCKCMQIfw0pw7piHJwyREFebJUvrQN4cMssyES6x+vfUbx1CIpaQUKYdQZOw==}
+  '@humanfs/node@0.16.8':
+    resolution: {integrity: sha512-gE1eQNZ3R++kTzFUpdGlpmy8kDZD/MLyHqDwqjkVQI0JMdI1D51sy1H958PNXYkM2rAac7e5/CnIKZrHtPh3BQ==}
+    engines: {node: '>=18.18.0'}
+
+  '@humanfs/types@0.15.0':
+    resolution: {integrity: sha512-ZZ1w0aoQkwuUuC7Yf+7sdeaNfqQiiLcSRbfI08oAxqLtpXQr9AIVX7Ay7HLDuiLYAaFPu8oBYNq/QIi9URHJ3Q==}
     engines: {node: '>=18.18.0'}
 
   '@humanwhocodes/module-importer@1.0.1':
     resolution: {integrity: sha512-bxveV4V8v5Yb4ncFTT3rPSgZBOpCkjfK0y4oVVVJwIuDVBRMDXrPyXRL988i5ap9m9bnyEEjWfm5WkBmtffLfA==}
     engines: {node: '>=12.22'}
 
-  '@humanwhocodes/retry@0.3.1':
-    resolution: {integrity: sha512-JBxkERygn7Bv/GbN5Rv8Ul6LVknS+5Bp6RgDC/O8gEBU/yeH5Ui5C/OlWrTb6qct7LjjfT6Re2NxB0ln0yYybA==}
-    engines: {node: '>=18.18'}
-
   '@humanwhocodes/retry@0.4.3':
     resolution: {integrity: sha512-bV0Tgo9K4hfPCek+aMAn81RppFKv2ySDQeMoSZuvTASywNTnVJCArCZE2FWqpvIatKu7VMRLWlR1EazvVhDyhQ==}
     engines: {node: '>=18.18'}
@@ -362,11 +362,11 @@ packages:
   balanced-match@1.0.2:
     resolution: {integrity: sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==}
 
-  brace-expansion@1.1.12:
-    resolution: {integrity: sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==}
+  brace-expansion@1.1.21:
+    resolution: {integrity: sha512-9zeA+KLZNNzglF2TPKRQEDyx6Yby7daAkuy8MiPzpXPsYDWi/DRM8jmwUDxokQjYqBpv5DgPiwD4h4ZZSy1Ujw==}
 
-  brace-expansion@2.0.2:
-    resolution: {integrity: sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==}
+  brace-expansion@2.1.7:
+    resolution: {integrity: sha512-uZbew1NqdmPDTMJ8ah1y+b+9QEJrfkXFk3RcTQw3X0jW/xRUvFKsg1CfQdSYGdTbXZWExtU3J3ccxtnfw1Fi0g==}
 
   braces@3.0.3:
     resolution: {integrity: sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==}
@@ -430,6 +430,7 @@ packages:
   eslint@9.29.0:
     resolution: {integrity: sha512-GsGizj2Y1rCWDu6XoEekL3RLilp0voSePurjZIkxL3wlm5o5EC9VpgaP7lrCvjnkuLvzFBQWB3vWB3K5KQTveQ==}
     engines: {node: ^18.18.0 || ^20.9.0 || >=21.1.0}
+    deprecated: This version is no longer supported. Please see https://eslint.org/version-support for other options.
     hasBin: true
     peerDependencies:
       jiti: '*'
@@ -542,8 +543,8 @@ packages:
   isexe@2.0.0:
     resolution: {integrity: sha512-RHxMLp9lnKHGHRng9QFhRCMbYAcVpn69smSGcq3f36xjgVVWThj4qqLbTLlq7Ssj8B+fIQ1EuCEGI2lKsyQeIw==}
 
-  js-yaml@4.1.1:
-    resolution: {integrity: sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==}
+  js-yaml@4.3.2:
+    resolution: {integrity: sha512-SFNOvSJ+Dgf/9An904Yx+CgSlIPCkIpao4qo51lpee25TIRejdH3rhR4EZMGoNx3/TP3O+wzWuiTFl4sqbltzA==}
     hasBin: true
 
   json-buffer@3.0.1:
@@ -614,8 +615,8 @@ packages:
     resolution: {integrity: sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q==}
     engines: {node: '>=8'}
 
-  picomatch@2.3.1:
-    resolution: {integrity: sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==}
+  picomatch@2.3.2:
+    resolution: {integrity: sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA==}
     engines: {node: '>=8.6'}
 
   prelude-ls@1.2.1:
@@ -783,22 +784,22 @@ snapshots:
   '@esbuild/win32-x64@0.25.5':
     optional: true
 
-  '@eslint-community/eslint-utils@4.4.0(eslint@9.29.0)':
+  '@eslint-community/eslint-utils@4.4.0(eslint@9.29.0(supports-color@7.2.0))':
     dependencies:
-      eslint: 9.29.0
+      eslint: 9.29.0(supports-color@7.2.0)
       eslint-visitor-keys: 3.4.3
 
-  '@eslint-community/eslint-utils@4.7.0(eslint@9.29.0)':
+  '@eslint-community/eslint-utils@4.7.0(eslint@9.29.0(supports-color@7.2.0))':
     dependencies:
-      eslint: 9.29.0
+      eslint: 9.29.0(supports-color@7.2.0)
       eslint-visitor-keys: 3.4.3
 
   '@eslint-community/regexpp@4.12.1': {}
 
-  '@eslint/config-array@0.20.1':
+  '@eslint/config-array@0.20.1(supports-color@7.2.0)':
     dependencies:
       '@eslint/object-schema': 2.1.6
-      debug: 4.3.7
+      debug: 4.3.7(supports-color@7.2.0)
       minimatch: 3.1.5
     transitivePeerDependencies:
       - supports-color
@@ -813,15 +814,15 @@ snapshots:
     dependencies:
       '@types/json-schema': 7.0.15
 
-  '@eslint/eslintrc@3.3.1':
+  '@eslint/eslintrc@3.3.1(supports-color@7.2.0)':
     dependencies:
       ajv: 6.14.0
-      debug: 4.3.7
+      debug: 4.3.7(supports-color@7.2.0)
       espree: 10.4.0
       globals: 14.0.0
       ignore: 5.3.2
       import-fresh: 3.3.0
-      js-yaml: 4.1.1
+      js-yaml: 4.3.2
       minimatch: 3.1.5
       strip-json-comments: 3.1.1
     transitivePeerDependencies:
@@ -836,17 +837,20 @@ snapshots:
       '@eslint/core': 0.15.2
       levn: 0.4.1
 
-  '@humanfs/core@0.19.1': {}
-
-  '@humanfs/node@0.16.6':
+  '@humanfs/core@0.19.2':
     dependencies:
-      '@humanfs/core': 0.19.1
-      '@humanwhocodes/retry': 0.3.1
+      '@humanfs/types': 0.15.0
+
+  '@humanfs/node@0.16.8':
+    dependencies:
+      '@humanfs/core': 0.19.2
+      '@humanfs/types': 0.15.0
+      '@humanwhocodes/retry': 0.4.3
+
+  '@humanfs/types@0.15.0': {}
 
   '@humanwhocodes/module-importer@1.0.1': {}
 
-  '@humanwhocodes/retry@0.3.1': {}
-
   '@humanwhocodes/retry@0.4.3': {}
 
   '@nodelib/fs.scandir@2.1.5':
@@ -869,15 +873,15 @@ snapshots:
     dependencies:
       undici-types: 7.8.0
 
-  '@typescript-eslint/eslint-plugin@8.34.1(@typescript-eslint/parser@8.34.1(eslint@9.29.0)(typescript@5.8.3))(eslint@9.29.0)(typescript@5.8.3)':
+  '@typescript-eslint/eslint-plugin@8.34.1(@typescript-eslint/parser@8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3))(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)':
     dependencies:
       '@eslint-community/regexpp': 4.12.1
-      '@typescript-eslint/parser': 8.34.1(eslint@9.29.0)(typescript@5.8.3)
+      '@typescript-eslint/parser': 8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)
       '@typescript-eslint/scope-manager': 8.34.1
-      '@typescript-eslint/type-utils': 8.34.1(eslint@9.29.0)(typescript@5.8.3)
-      '@typescript-eslint/utils': 8.34.1(eslint@9.29.0)(typescript@5.8.3)
+      '@typescript-eslint/type-utils': 8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)
+      '@typescript-eslint/utils': 8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)
       '@typescript-eslint/visitor-keys': 8.34.1
-      eslint: 9.29.0
+      eslint: 9.29.0(supports-color@7.2.0)
       graphemer: 1.4.0
       ignore: 7.0.5
       natural-compare: 1.4.0
@@ -886,23 +890,23 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/parser@8.34.1(eslint@9.29.0)(typescript@5.8.3)':
+  '@typescript-eslint/parser@8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)':
     dependencies:
       '@typescript-eslint/scope-manager': 8.34.1
       '@typescript-eslint/types': 8.34.1
-      '@typescript-eslint/typescript-estree': 8.34.1(typescript@5.8.3)
+      '@typescript-eslint/typescript-estree': 8.34.1(supports-color@7.2.0)(typescript@5.8.3)
       '@typescript-eslint/visitor-keys': 8.34.1
-      debug: 4.3.7
-      eslint: 9.29.0
+      debug: 4.3.7(supports-color@7.2.0)
+      eslint: 9.29.0(supports-color@7.2.0)
       typescript: 5.8.3
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/project-service@8.34.1(typescript@5.8.3)':
+  '@typescript-eslint/project-service@8.34.1(supports-color@7.2.0)(typescript@5.8.3)':
     dependencies:
       '@typescript-eslint/tsconfig-utils': 8.34.1(typescript@5.8.3)
       '@typescript-eslint/types': 8.34.1
-      debug: 4.3.7
+      debug: 4.3.7(supports-color@7.2.0)
       typescript: 5.8.3
     transitivePeerDependencies:
       - supports-color
@@ -916,12 +920,12 @@ snapshots:
     dependencies:
       typescript: 5.8.3
 
-  '@typescript-eslint/type-utils@8.34.1(eslint@9.29.0)(typescript@5.8.3)':
+  '@typescript-eslint/type-utils@8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)':
     dependencies:
-      '@typescript-eslint/typescript-estree': 8.34.1(typescript@5.8.3)
-      '@typescript-eslint/utils': 8.34.1(eslint@9.29.0)(typescript@5.8.3)
-      debug: 4.3.7
-      eslint: 9.29.0
+      '@typescript-eslint/typescript-estree': 8.34.1(supports-color@7.2.0)(typescript@5.8.3)
+      '@typescript-eslint/utils': 8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)
+      debug: 4.3.7(supports-color@7.2.0)
+      eslint: 9.29.0(supports-color@7.2.0)
       ts-api-utils: 2.1.0(typescript@5.8.3)
       typescript: 5.8.3
     transitivePeerDependencies:
@@ -929,13 +933,13 @@ snapshots:
 
   '@typescript-eslint/types@8.34.1': {}
 
-  '@typescript-eslint/typescript-estree@8.34.1(typescript@5.8.3)':
+  '@typescript-eslint/typescript-estree@8.34.1(supports-color@7.2.0)(typescript@5.8.3)':
     dependencies:
-      '@typescript-eslint/project-service': 8.34.1(typescript@5.8.3)
+      '@typescript-eslint/project-service': 8.34.1(supports-color@7.2.0)(typescript@5.8.3)
       '@typescript-eslint/tsconfig-utils': 8.34.1(typescript@5.8.3)
       '@typescript-eslint/types': 8.34.1
       '@typescript-eslint/visitor-keys': 8.34.1
-      debug: 4.3.7
+      debug: 4.3.7(supports-color@7.2.0)
       fast-glob: 3.3.2
       is-glob: 4.0.3
       minimatch: 9.0.9
@@ -945,13 +949,13 @@ snapshots:
     transitivePeerDependencies:
       - supports-color
 
-  '@typescript-eslint/utils@8.34.1(eslint@9.29.0)(typescript@5.8.3)':
+  '@typescript-eslint/utils@8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)':
     dependencies:
-      '@eslint-community/eslint-utils': 4.7.0(eslint@9.29.0)
+      '@eslint-community/eslint-utils': 4.7.0(eslint@9.29.0(supports-color@7.2.0))
       '@typescript-eslint/scope-manager': 8.34.1
       '@typescript-eslint/types': 8.34.1
-      '@typescript-eslint/typescript-estree': 8.34.1(typescript@5.8.3)
-      eslint: 9.29.0
+      '@typescript-eslint/typescript-estree': 8.34.1(supports-color@7.2.0)(typescript@5.8.3)
+      eslint: 9.29.0(supports-color@7.2.0)
       typescript: 5.8.3
     transitivePeerDependencies:
       - supports-color
@@ -982,12 +986,12 @@ snapshots:
 
   balanced-match@1.0.2: {}
 
-  brace-expansion@1.1.12:
+  brace-expansion@1.1.21:
     dependencies:
       balanced-match: 1.0.2
       concat-map: 0.0.1
 
-  brace-expansion@2.0.2:
+  brace-expansion@2.1.7:
     dependencies:
       balanced-match: 1.0.2
 
@@ -1016,9 +1020,11 @@ snapshots:
       shebang-command: 2.0.0
       which: 2.0.2
 
-  debug@4.3.7:
+  debug@4.3.7(supports-color@7.2.0):
     dependencies:
       ms: 2.1.3
+    optionalDependencies:
+      supports-color: 7.2.0
 
   deep-is@0.1.4: {}
 
@@ -1061,17 +1067,17 @@ snapshots:
 
   eslint-visitor-keys@4.2.1: {}
 
-  eslint@9.29.0:
+  eslint@9.29.0(supports-color@7.2.0):
     dependencies:
-      '@eslint-community/eslint-utils': 4.4.0(eslint@9.29.0)
+      '@eslint-community/eslint-utils': 4.4.0(eslint@9.29.0(supports-color@7.2.0))
       '@eslint-community/regexpp': 4.12.1
-      '@eslint/config-array': 0.20.1
+      '@eslint/config-array': 0.20.1(supports-color@7.2.0)
       '@eslint/config-helpers': 0.2.3
       '@eslint/core': 0.14.0
-      '@eslint/eslintrc': 3.3.1
+      '@eslint/eslintrc': 3.3.1(supports-color@7.2.0)
       '@eslint/js': 9.29.0
       '@eslint/plugin-kit': 0.3.5
-      '@humanfs/node': 0.16.6
+      '@humanfs/node': 0.16.8
       '@humanwhocodes/module-importer': 1.0.1
       '@humanwhocodes/retry': 0.4.3
       '@types/estree': 1.0.8
@@ -1079,7 +1085,7 @@ snapshots:
       ajv: 6.14.0
       chalk: 4.1.2
       cross-spawn: 7.0.6
-      debug: 4.3.7
+      debug: 4.3.7(supports-color@7.2.0)
       escape-string-regexp: 4.0.0
       eslint-scope: 8.4.0
       eslint-visitor-keys: 4.2.1
@@ -1192,7 +1198,7 @@ snapshots:
 
   isexe@2.0.0: {}
 
-  js-yaml@4.1.1:
+  js-yaml@4.3.2:
     dependencies:
       argparse: 2.0.1
 
@@ -1222,15 +1228,15 @@ snapshots:
   micromatch@4.0.8:
     dependencies:
       braces: 3.0.3
-      picomatch: 2.3.1
+      picomatch: 2.3.2
 
   minimatch@3.1.5:
     dependencies:
-      brace-expansion: 1.1.12
+      brace-expansion: 1.1.21
 
   minimatch@9.0.9:
     dependencies:
-      brace-expansion: 2.0.2
+      brace-expansion: 2.1.7
 
   ms@2.1.3: {}
 
@@ -1261,7 +1267,7 @@ snapshots:
 
   path-key@3.1.1: {}
 
-  picomatch@2.3.1: {}
+  picomatch@2.3.2: {}
 
   prelude-ls@1.2.1: {}
 
@@ -1303,12 +1309,12 @@ snapshots:
     dependencies:
       prelude-ls: 1.2.1
 
-  typescript-eslint@8.34.1(eslint@9.29.0)(typescript@5.8.3):
+  typescript-eslint@8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3):
     dependencies:
-      '@typescript-eslint/eslint-plugin': 8.34.1(@typescript-eslint/parser@8.34.1(eslint@9.29.0)(typescript@5.8.3))(eslint@9.29.0)(typescript@5.8.3)
-      '@typescript-eslint/parser': 8.34.1(eslint@9.29.0)(typescript@5.8.3)
-      '@typescript-eslint/utils': 8.34.1(eslint@9.29.0)(typescript@5.8.3)
-      eslint: 9.29.0
+      '@typescript-eslint/eslint-plugin': 8.34.1(@typescript-eslint/parser@8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3))(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)
+      '@typescript-eslint/parser': 8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)
+      '@typescript-eslint/utils': 8.34.1(eslint@9.29.0(supports-color@7.2.0))(supports-color@7.2.0)(typescript@5.8.3)
+      eslint: 9.29.0(supports-color@7.2.0)
       typescript: 5.8.3
     transitivePeerDependencies:
       - supports-color

src/idl_gen_cpp.cpp

@@ -404,7 +404,7 @@ class CppGenerator : public BaseGenerator {
       code_ += "struct {{STRUCT_NAME}}BinarySchema {";
       code_ += "  static const uint8_t *data() {";
       code_ += "    // Buffer containing the binary schema.";
-      code_ += "    static const uint8_t bfbsData[" +
+      code_ += "    alignas(uint64_t) static const uint8_t bfbsData[" +
                NumToString(parser_.builder_.GetSize()) + "] = {";
       code_ += binary_schema_hex_text;
       code_ += "    };";

src/idl_gen_dart.cpp

@@ -654,34 +654,15 @@ class DartGenerator : public BaseGenerator {
 
   std::string NamespaceAliasFromUnionType(Namespace* root_namespace,
                                           const Type& type) {
-    const std::vector<std::string> qualified_name_parts =
-        type.struct_def->defined_namespace->components;
-    if (std::equal(root_namespace->components.begin(),
-                   root_namespace->components.end(),
-                   qualified_name_parts.begin())) {
+    const Namespace& type_namespace = *type.struct_def->defined_namespace;
+    if (root_namespace->components == type_namespace.components) {
       return namer_.Type(*type.struct_def);
     }
 
-    std::string ns;
-
-    for (auto it = qualified_name_parts.begin();
-         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);
+    const std::string ns = namer_.Namespace(type_namespace);
+    return ns.empty()
+               ? namer_.Type(*type.struct_def)
+               : ImportAliasName(ns) + "." + namer_.Type(*type.struct_def);
   }
 
   void GenImplementationGetters(

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 {
+public protocol Scalar: Equatable, BitwiseCopyable {
   associatedtype NumericValue
   var convertedEndian: NumericValue { get }
 }

swift/Sources/FlatBuffers/ByteBuffer.swift

@@ -27,7 +27,7 @@ public struct ByteBuffer: @unchecked Sendable {
   @usableFromInline
   final class Storage {
     @usableFromInline
-    enum Blob {
+    @frozen enum Blob: ~Copyable {
       #if !os(WASI)
       case data(Data)
       case bytes(any ContiguousBytes)
@@ -36,6 +36,40 @@ public struct ByteBuffer: @unchecked Sendable {
       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.
@@ -44,7 +78,7 @@ public struct ByteBuffer: @unchecked Sendable {
     private let capacity: Int
     /// Retained blob of data that requires the storage to retain a pointer to.
     @usableFromInline
-    var retainedBlob: Blob
+    let retainedBlob: Blob
 
     @usableFromInline
     init(count: Int) {
@@ -57,9 +91,9 @@ public struct ByteBuffer: @unchecked Sendable {
     }
 
     @usableFromInline
-    init(blob: Blob, capacity count: Int) {
+    init(blob: borrowing Blob, capacity count: Int) {
       capacity = count
-      retainedBlob = blob
+      retainedBlob = .init(blob)
       isOwned = false
     }
 
@@ -150,6 +184,7 @@ public struct ByteBuffer: @unchecked Sendable {
 
     @discardableResult
     @inline(__always)
+    @inlinable
     func readWithUnsafeRawPointer<T>(
       position: Int,
       _ body: (UnsafeRawPointer) throws -> T) rethrows -> T
@@ -278,7 +313,7 @@ public struct ByteBuffer: @unchecked Sendable {
   ///   - removeBytes: Removes a number of bytes from the current size
   @inline(__always)
   init(
-    blob: Storage.Blob,
+    blob: borrowing Storage.Blob,
     count: Int,
     removing removeBytes: Int)
   {
@@ -318,7 +353,8 @@ public struct ByteBuffer: @unchecked Sendable {
   ///   - def: Type of the object
   ///   - position: the index of the object in the buffer
   @inline(__always)
-  public func read<T>(def: T.Type, position: Int) -> T {
+  @inlinable
+  public func read<T: BitwiseCopyable>(def: T.Type, position: Int) -> T {
     _storage.readWithUnsafeRawPointer(position: position) {
       $0.bindMemory(to: T.self, capacity: 1)
         .pointee
@@ -412,7 +448,7 @@ 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")
@@ -464,8 +500,9 @@ public struct ByteBuffer: @unchecked Sendable {
 extension ByteBuffer: CustomDebugStringConvertible {
 
   public var debugDescription: String {
-    """
-    buffer located at: \(_storage.retainedBlob), 
+    let blobDescription = _storage.retainedBlob.description
+    return """
+    buffer located at: \(blobDescription), 
     with capacity of \(capacity),
     { writtenSize: \(_readerIndex), readerSize: \(reader), 
     size: \(size) }

swift/Sources/FlatBuffers/FlatBufferBuilder.swift

@@ -47,7 +47,8 @@ public struct FlatBufferBuilder {
   /// A check to see if finish(::) was ever called to retreive data object
   private(set) var finished = false
   /// A check to see if the buffer should serialize Default values
-  private var serializeDefaults: Bool
+  @usableFromInline
+  let serializeDefaults: Bool
 
   /// Current alignment for the buffer
   var _minAlignment: Int = 0 {
@@ -756,6 +757,7 @@ 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)
@@ -794,6 +796,7 @@ 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,
@@ -813,6 +816,7 @@ 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)
@@ -825,6 +829,7 @@ 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
@@ -836,7 +841,8 @@ public struct FlatBufferBuilder {
   }
 
   @inline(__always)
-  public func read<T>(def: T.Type, position: Int) -> T {
+  @inlinable
+  public func read<T: BitwiseCopyable>(def: T.Type, position: Int) -> T {
     _bb.read(def: def, position: position)
   }
 }

swift/Sources/FlatBuffers/FlatBufferObject.swift

@@ -18,7 +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 {}
+public protocol NativeStruct: BitwiseCopyable {}
 
 public protocol FlatBufferVerifiableNativeStruct: NativeStruct, Verifiable {}
 

swift/Sources/FlatBuffers/Root.swift

@@ -16,6 +16,30 @@
 
 import Foundation
 
+@inline(__always)
+private func verifySizePrefix(
+  byteBuffer: inout ByteBuffer,
+  requireExactSize: Bool,
+  options: VerifierOptions) throws
+{
+  let verifier = try Verifier(buffer: &byteBuffer, options: options)
+  let prefixPosition = byteBuffer.reader
+  let prefix: UOffset = try verifier.getValue(at: prefixPosition)
+  let availableSize = byteBuffer.size &- UOffset(MemoryLayout<UOffset>.size)
+
+  if requireExactSize {
+    guard prefix == availableSize else {
+      throw FlatbuffersErrors.prefixedSizeNotEqualToBufferSize
+    }
+  } else if prefix > availableSize {
+    throw FlatbuffersErrors.outOfBounds(
+      position: UInt(prefixPosition)
+        &+ UInt(MemoryLayout<UOffset>.size)
+        &+ UInt(prefix),
+      end: byteBuffer.capacity)
+  }
+}
+
 /// Takes in a prefixed sized buffer, where the prefixed size would be skipped.
 /// And would verify that the buffer passed is a valid `Flatbuffers` Object.
 /// - Parameters:
@@ -31,6 +55,10 @@ public func getPrefixedSizeCheckedRoot<T: FlatBufferTable & Verifiable>(
   fileId: String? = nil,
   options: VerifierOptions = .init()) throws -> T
 {
+  try verifySizePrefix(
+    byteBuffer: &byteBuffer,
+    requireExactSize: false,
+    options: options)
   byteBuffer.skipPrefix()
   return try getCheckedRoot(
     byteBuffer: &byteBuffer,
@@ -53,10 +81,11 @@ public func getCheckedPrefixedSizeRoot<T: FlatBufferTable & Verifiable>(
   fileId: String? = nil,
   options: VerifierOptions = .init()) throws -> T
 {
-  let prefix = byteBuffer.skipPrefix()
-  if prefix != byteBuffer.size {
-    throw FlatbuffersErrors.prefixedSizeNotEqualToBufferSize
-  }
+  try verifySizePrefix(
+    byteBuffer: &byteBuffer,
+    requireExactSize: true,
+    options: options)
+  byteBuffer.skipPrefix()
   return try getCheckedRoot(
     byteBuffer: &byteBuffer,
     fileId: fileId,
@@ -95,14 +124,15 @@ public func getCheckedRoot<T: FlatBufferTable & Verifiable>(
   options: VerifierOptions = .init()) throws -> T
 {
   var verifier = try Verifier(buffer: &byteBuffer, options: options)
+  let rootPosition = byteBuffer.reader
   if let fileId = fileId {
-    try verifier.verify(id: fileId)
+    try verifier.verify(id: fileId, at: rootPosition)
   }
-  try ForwardOffset<T>.verify(&verifier, at: 0, of: T.self)
+  try ForwardOffset<T>.verify(&verifier, at: rootPosition, of: T.self)
   return T.init(
     byteBuffer,
-    o: Int32(byteBuffer.read(def: UOffset.self, position: byteBuffer.reader))
-      &+ Int32(byteBuffer.reader))
+    o: Int32(byteBuffer.read(def: UOffset.self, position: rootPosition))
+      &+ Int32(rootPosition))
 }
 
 /// Returns a `NON-Checked` flatbuffers object

swift/Sources/FlatBuffers/Table.swift

@@ -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>(of type: T.Type, at o: Int32) -> T {
+  public func readBuffer<T: BitwiseCopyable>(of type: T.Type, at o: Int32) -> T {
     bb.read(def: T.self, position: Int(o &+ position))
   }
 

swift/Sources/FlatBuffers/Verifiable.swift

@@ -56,8 +56,15 @@ 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: intLen)
+    try verifier.rangeInBuffer(position: start, size: byteCount.partialValue)
     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>(at position: Int) throws -> T {
+  internal func getValue<T: BitwiseCopyable>(at position: Int) throws -> T {
     try inBuffer(position: position, of: T.self)
     return _buffer.read(def: T.self, position: position)
   }
@@ -215,12 +215,16 @@ public struct Verifier {
   }
 
   @inline(__always)
-  func verify(id: String) throws {
+  func verify(id: String, at position: Int) throws {
     let size = MemoryLayout<Int32>.size
-    guard storage.capacity >= (size &* 2) else {
+    guard
+      position >= 0,
+      position <= storage.capacity,
+      storage.capacity - position >= size &* 2
+    else {
       throw FlatbuffersErrors.bufferDoesntContainID
     }
-    let str = _buffer.readString(at: size, count: size)
+    let str = _buffer.readString(at: position &+ size, count: size)
     if id == str {
       return
     }

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
-    private(set) var memory: UnsafeMutableRawPointer
+    @exclusivity(unchecked) private(set) var memory: UnsafeMutableRawPointer
 
     @usableFromInline
     init(count: Int, alignment: Int) {
@@ -333,6 +333,7 @@ struct _InternalByteBuffer {
 
   @discardableResult
   @inline(__always)
+  @usableFromInline
   func readWithUnsafeRawPointer<T>(
     position: Int,
     _ body: (UnsafeRawPointer) throws -> T) rethrows -> T

swift/Sources/FlexBuffers/ByteBuffer.swift

@@ -27,7 +27,7 @@ public struct ByteBuffer {
   @usableFromInline
   final class Storage {
     @usableFromInline
-    enum Blob {
+    @frozen enum Blob: ~Copyable {
       #if !os(WASI)
       case data(Data)
       case bytes(any ContiguousBytes)
@@ -36,6 +36,23 @@ public struct ByteBuffer {
       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.
@@ -44,7 +61,7 @@ public struct ByteBuffer {
     private let capacity: Int
     /// Retained blob of data that requires the storage to retain a pointer to.
     @usableFromInline
-    var retainedBlob: Blob
+    let retainedBlob: Blob
 
     @usableFromInline
     init(count: Int) {
@@ -57,9 +74,9 @@ public struct ByteBuffer {
     }
 
     @usableFromInline
-    init(blob: Blob, capacity count: Int) {
+    init(blob: borrowing Blob, capacity count: Int) {
       capacity = count
-      retainedBlob = blob
+      retainedBlob = .init(blob)
       isOwned = false
     }
 
@@ -276,7 +293,7 @@ public struct ByteBuffer {
   ///   - removeBytes: Removes a number of bytes from the current size
   @inline(__always)
   init(
-    blob: Storage.Blob,
+    blob: borrowing Storage.Blob,
     count: Int,
     removing removeBytes: Int)
   {
@@ -316,7 +333,7 @@ public struct ByteBuffer {
   ///   - def: Type of the object
   ///   - position: the index of the object in the buffer
   @inline(__always)
-  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
@@ -360,10 +377,10 @@ public struct ByteBuffer {
   @inline(__always)
   func readSizedScalar<
     T: BinaryInteger,
-    T1: BinaryInteger,
-    T2: BinaryInteger,
-    T3: BinaryInteger,
-    T4: BinaryInteger
+    T1: BinaryInteger & BitwiseCopyable,
+    T2: BinaryInteger & BitwiseCopyable,
+    T3: BinaryInteger & BitwiseCopyable,
+    T4: BinaryInteger & BitwiseCopyable
   >(
     def: T.Type,
     t1: T1.Type,

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
-    var memory: UnsafeMutableRawPointer
+    @exclusivity(unchecked) private(set) var memory: UnsafeMutableRawPointer
 
     @usableFromInline
     init(count: Int, alignment: Int) {

tests/monster_test_bfbs_generated.h

@@ -12,7 +12,7 @@ namespace Example {
 struct MonsterBinarySchema {
   static const uint8_t *data() {
     // Buffer containing the binary schema.
-    static const uint8_t bfbsData[14520] = {
+    alignas(uint64_t) static const uint8_t bfbsData[14520] = {
       0x20,0x00,0x00,0x00,0x42,0x46,0x42,0x53,0x00,0x00,0x00,0x00,0x14,0x00,0x20,0x00,0x04,0x00,0x08,0x00,
       0x0C,0x00,0x10,0x00,0x14,0x00,0x18,0x00,0x00,0x00,0x1C,0x00,0x14,0x00,0x00,0x00,0x58,0x00,0x00,0x00,
       0x34,0x00,0x00,0x00,0x24,0x00,0x00,0x00,0x18,0x00,0x00,0x00,0x70,0x0D,0x00,0x00,0x08,0x00,0x00,0x00,

tests/swift/Tests/Flatbuffers/FlatbuffersVerifierTests.swift

@@ -373,6 +373,58 @@ final class FlatbuffersVerifierTests {
     }
   }
 
+  @Test
+  func testSizePrefixedVerifierUsesPostPrefixRoot() throws {
+    // The size prefix points to a valid empty decoy table at byte 44. The real
+    // root at byte 4 points to a truncated UInt64 vector that must be rejected.
+    let bytes: [UInt8] = [
+      44, 0, 0, 0,
+      16, 0, 0, 0,
+      6, 0, 8, 0, 4, 0,
+      0, 0, 0, 0, 0, 0,
+      12, 0, 0, 0,
+      8, 0, 0, 0, 0, 0, 0, 0,
+      2, 0, 0, 0, 65, 66,
+      0, 0,
+      4, 0, 4, 0,
+      4, 0, 0, 0,
+    ]
+
+    var strictBuffer = ByteBuffer(bytes: bytes)
+    #expect(throws: FlatbuffersErrors.self) {
+      try getCheckedPrefixedSizeRoot(
+        byteBuffer: &strictBuffer) as Swift_Tests_Vectors
+    }
+
+    var prefixedBuffer = ByteBuffer(bytes: bytes)
+    #expect(throws: FlatbuffersErrors.self) {
+      try getPrefixedSizeCheckedRoot(
+        byteBuffer: &prefixedBuffer) as Swift_Tests_Vectors
+    }
+
+    var builder = FlatBufferBuilder()
+    let movie = Movie.createMovie(&builder)
+    Movie.finish(&builder, end: movie, prefix: true)
+    var validBuffer = builder.sizedBuffer
+    let _: Movie = try getCheckedPrefixedSizeRoot(
+      byteBuffer: &validBuffer,
+      fileId: Movie.id)
+
+    var shortBuffer = ByteBuffer(bytes: [0, 0, 0, 0])
+    #expect(throws: FlatbuffersErrors.bufferDoesntContainID) {
+      try getCheckedRoot(
+        byteBuffer: &shortBuffer,
+        fileId: Movie.id) as Movie
+    }
+
+    var oversizedPrefix = ByteBuffer(bytes: [5, 0, 0, 0, 0, 0, 0, 0])
+    #expect(throws: FlatbuffersErrors.outOfBounds(position: 9, end: 8)) {
+      try getPrefixedSizeCheckedRoot(
+        byteBuffer: &oversizedPrefix) as Movie
+    }
+    #expect(oversizedPrefix.reader == 0)
+  }
+
   @Test
   func testFullVerifier() throws {
     _ =
@@ -411,6 +463,27 @@ final class FlatbuffersVerifierTests {
     }
   }
 
+  @Test(.bug("https://github.com/google/flatbuffers/issues/9082"))
+  func testRejectsTruncatedScalarVector() {
+    // swiftformat:disable all
+    var byteBuffer = ByteBuffer(bytes: [
+      16, 0, 0, 0,
+      6, 0, 8, 0,
+      4, 0, 0, 0,
+      0, 0, 0, 0,
+      12, 0, 0, 0,
+      8, 0, 0, 0,
+      0, 0, 0, 0,
+      2, 0, 0, 0,
+      65, 66,
+    ])
+    // swiftformat:enable all
+
+    #expect(throws: FlatbuffersErrors.self) {
+      try getCheckedRoot(byteBuffer: &byteBuffer) as Swift_Tests_Vectors
+    }
+  }
+
   @Test
   func testValidUnionBuffer() {
     let string = "Awesome \\\\t\t\nstring!"

tests/ts/bazel_repository_test_dir/package.json

@@ -3,6 +3,6 @@
   "type": "module",
   "private": true,
   "devDependencies": {
-    "lodash": "4.17.23"
+    "lodash": "4.18.1"
   }
 }