[Swift] Implements FlatbuffersVector which confirms to RandomAccessCollection (#8752)

* Implements FlatbuffersVector in swift

Implements FlatbuffersVector which confirms to RandomAccessCollection,
this would give us semi-native sugary syntax to all the arrays in swift port.

This work will also be the foundation of using arrays in swift

* Fix failing tests for Swift

Package.swift

@@ -57,10 +57,10 @@ let package = Package(
 extension Array where Element == Package.Dependency {
   static var dependencies: [Package.Dependency] {
     #if os(Windows)
-      []
+    []
     #else
-      // Test only Dependency
-      [.package(url: "https://github.com/grpc/grpc-swift.git", from: "1.4.1")]
+    // Test only Dependency
+    [.package(url: "https://github.com/grpc/grpc-swift.git", from: "1.4.1")]
     #endif
   }
 }
@@ -68,13 +68,13 @@ extension Array where Element == Package.Dependency {
 extension Array where Element == PackageDescription.Target.Dependency {
   static var dependencies: [PackageDescription.Target.Dependency] {
     #if os(Windows)
-      ["FlatBuffers"]
+    ["FlatBuffers"]
     #else
-      // Test only Dependency
-      [
-        .product(name: "GRPC", package: "grpc-swift"),
-        "FlatBuffers",
-      ]
+    // Test only Dependency
+    [
+      .product(name: "GRPC", package: "grpc-swift"),
+      "FlatBuffers",
+    ]
     #endif
   }
 }

benchmarks/swift/Benchmarks/FlatbuffersBenchmarks/FlatbuffersBenchmarks.swift

@@ -88,8 +88,8 @@ let benchmarks = {
 
   Benchmark(
     "Allocating ByteBuffer 1GB",
-    configuration: singleConfiguration
-  ) { benchmark in
+    configuration: singleConfiguration)
+  { benchmark in
     let memory = UnsafeMutableRawPointer.allocate(
       byteCount: 1_024_000_000,
       alignment: 1)
@@ -165,8 +165,8 @@ let benchmarks = {
 
   Benchmark(
     "FlatBufferBuilder Add",
-    configuration: kiloConfiguration
-  ) { benchmark in
+    configuration: kiloConfiguration)
+  { benchmark in
     var fb = FlatBufferBuilder(initialSize: 1024 * 1024 * 32)
     benchmark.startMeasurement()
     for _ in benchmark.scaledIterations {
@@ -182,8 +182,8 @@ let benchmarks = {
 
   Benchmark(
     "FlatBufferBuilder Start table",
-    configuration: kiloConfiguration
-  ) { benchmark in
+    configuration: kiloConfiguration)
+  { benchmark in
     var fb = FlatBufferBuilder(initialSize: 1024 * 1024 * 32)
     benchmark.startMeasurement()
     for _ in benchmark.scaledIterations {

benchmarks/swift/Package.swift

@@ -20,7 +20,7 @@ import PackageDescription
 let package = Package(
   name: "benchmarks",
   platforms: [
-    .macOS(.v13)
+    .macOS(.v13),
   ],
   dependencies: [
     .package(path: "../.."),
@@ -37,6 +37,6 @@ let package = Package(
       ],
       path: "Benchmarks/FlatbuffersBenchmarks",
       plugins: [
-        .plugin(name: "BenchmarkPlugin", package: "package-benchmark")
-      ])
+        .plugin(name: "BenchmarkPlugin", package: "package-benchmark"),
+      ]),
   ])

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

@@ -8,7 +8,7 @@ import Common
 
 import FlatBuffers
 
-public struct models_HelloReply: FlatBufferObject, Verifiable {
+public struct models_HelloReply: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -55,7 +55,7 @@ extension models_HelloReply: Encodable {
   }
 }
 
-public struct models_HelloRequest: FlatBufferObject, Verifiable {
+public struct models_HelloRequest: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }

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

@@ -39,7 +39,7 @@ func greet(name: String, client greeter: models_GreeterServiceClient) {
   // Make the RPC call to the server.
   let sayHello =
     greeter
-    .SayHello(Message<models_HelloRequest>(builder: &builder))
+      .SayHello(Message<models_HelloRequest>(builder: &builder))
 
   // wait() on the response to stop the program from exiting before the response is received.
   do {

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

@@ -32,8 +32,7 @@ class Greeter: models_GreeterProvider {
 
   func SayHello(
     request: Message<models_HelloRequest>,
-    context: StatusOnlyCallContext
-  )
+    context: StatusOnlyCallContext)
     -> EventLoopFuture<Message<models_HelloReply>>
   {
     let recipient = request.object.name ?? "Stranger"
@@ -48,15 +47,14 @@ class Greeter: models_GreeterProvider {
 
   func SayManyHellos(
     request: Message<models_HelloRequest>,
-    context: StreamingResponseCallContext<Message<models_HelloReply>>
-  )
+    context: StreamingResponseCallContext<Message<models_HelloReply>>)
     -> EventLoopFuture<GRPCStatus>
   {
     for name in greetings {
       var builder = FlatBufferBuilder()
       let off =
         builder
-        .create(string: "\(name) \(request.object.name ?? "Unknown")")
+          .create(string: "\(name) \(request.object.name ?? "Unknown")")
       let root = models_HelloReply.createHelloReply(
         &builder,
         messageOffset: off)

samples/monster_generated.swift

@@ -8,7 +8,7 @@ import Common
 
 import FlatBuffers
 
-public enum MyGame_Sample_Color: Int8, Enum, Verifiable {
+public enum MyGame_Sample_Color: Int8, FlatbuffersVectorInitializable, Enum, Verifiable {
   public typealias T = Int8
   public static var byteSize: Int { return MemoryLayout<Int8>.size }
   public var value: Int8 { return self.rawValue }
@@ -31,7 +31,7 @@ extension MyGame_Sample_Color: Encodable {
   }
 }
 
-public enum MyGame_Sample_Equipment: UInt8, UnionEnum {
+public enum MyGame_Sample_Equipment: UInt8, FlatbuffersVectorInitializable, UnionEnum {
   public typealias T = UInt8
 
   public init?(value: T) {
@@ -73,7 +73,7 @@ public struct MyGame_Sample_EquipmentUnion {
     }
   }
 }
-public struct MyGame_Sample_Vec3: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Sample_Vec3: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -136,7 +136,7 @@ extension MyGame_Sample_Vec3: Encodable {
   }
 }
 
-public struct MyGame_Sample_Vec3_Mutable: FlatBufferObject {
+public struct MyGame_Sample_Vec3_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -165,7 +165,7 @@ public struct MyGame_Sample_Vec3_Mutable: FlatBufferObject {
   }
 }
 
-public struct MyGame_Sample_Monster: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Sample_Monster: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -197,24 +197,17 @@ public struct MyGame_Sample_Monster: FlatBufferObject, Verifiable, ObjectAPIPack
   @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(VTOFFSET.name.v); return o == 0 ? nil : _accessor.string(at: o) }
   public var nameSegmentArray: [UInt8]? { return _accessor.getVector(at: VTOFFSET.name.v) }
-  public var hasInventory: Bool { let o = _accessor.offset(VTOFFSET.inventory.v); return o == 0 ? false : true }
-  public var inventoryCount: Int32 { let o = _accessor.offset(VTOFFSET.inventory.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func inventory(at index: Int32) -> UInt8 { let o = _accessor.offset(VTOFFSET.inventory.v); return o == 0 ? 0 : _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var inventory: [UInt8] { return _accessor.getVector(at: VTOFFSET.inventory.v) ?? [] }
+  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(VTOFFSET.inventory.v); return _accessor.directMutate(inventory, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToInventory<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.inventory.v, 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(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(VTOFFSET.color.v);  return _accessor.mutate(color.rawValue, index: o) }
-  public var hasWeapons: Bool { let o = _accessor.offset(VTOFFSET.weapons.v); return o == 0 ? false : true }
-  public var weaponsCount: Int32 { let o = _accessor.offset(VTOFFSET.weapons.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func weapons(at index: Int32) -> MyGame_Sample_Weapon? { let o = _accessor.offset(VTOFFSET.weapons.v); return o == 0 ? nil : MyGame_Sample_Weapon(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 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(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(VTOFFSET.equipped.v); return o == 0 ? nil : _accessor.union(o) }
-  public var hasPath: Bool { let o = _accessor.offset(VTOFFSET.path.v); return o == 0 ? false : true }
-  public var pathCount: Int32 { let o = _accessor.offset(VTOFFSET.path.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func path(at index: Int32) -> MyGame_Sample_Vec3? { let o = _accessor.offset(VTOFFSET.path.v); return o == 0 ? nil : _accessor.directRead(of: MyGame_Sample_Vec3.self, offset: _accessor.vector(at: o) + index * 12) }
-  public func mutablePath(at index: Int32) -> MyGame_Sample_Vec3_Mutable? { let o = _accessor.offset(VTOFFSET.path.v); return o == 0 ? nil : MyGame_Sample_Vec3_Mutable(_accessor.bb, o: _accessor.vector(at: o) + index * 12) }
-  public func withUnsafePointerToPath<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.path.v, body: body) }
+  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: VTOFFSET.path.v, byteSize: 12) }
+  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: VTOFFSET.pos.p) }
   public static func add(mana: Int16, _ fbb: inout FlatBufferBuilder) { fbb.add(element: mana, def: 150, at: VTOFFSET.mana.p) }
@@ -282,9 +275,8 @@ public struct MyGame_Sample_Monster: FlatBufferObject, Verifiable, ObjectAPIPack
     let __weapons = builder.createVector(ofOffsets: __weapons__)
     let __equipped = obj.equipped?.pack(builder: &builder) ?? Offset()
     MyGame_Sample_Monster.startVectorOfPath(obj.path.count, in: &builder)
-    for i in obj.path {
-      guard let _o = i else { continue }
-      builder.create(struct: _o)
+    for val in obj.path {
+      builder.create(struct: val)
     }
     let __path = builder.endVector(len: obj.path.count)
     let __root = MyGame_Sample_Monster.startMonster(&builder)
@@ -350,19 +342,11 @@ extension MyGame_Sample_Monster: Encodable {
       try container.encodeIfPresent(hp, forKey: .hp)
     }
     try container.encodeIfPresent(name, forKey: .name)
-    if inventoryCount > 0 {
-      try container.encodeIfPresent(inventory, forKey: .inventory)
-    }
+    try container.encodeIfPresent(inventory, forKey: .inventory)
     if color != .blue {
       try container.encodeIfPresent(color, forKey: .color)
     }
-    if weaponsCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .weapons)
-      for index in 0..<weaponsCount {
-        guard let type = weapons(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(weapons, forKey: .weapons)
     if equippedType != .none_ {
       try container.encodeIfPresent(equippedType, forKey: .equippedType)
     }
@@ -372,13 +356,7 @@ extension MyGame_Sample_Monster: Encodable {
       try container.encodeIfPresent(_v, forKey: .equipped)
     default: break;
     }
-    if pathCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .path)
-      for index in 0..<pathCount {
-        guard let type = path(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(path, forKey: .path)
   }
 }
 
@@ -392,7 +370,7 @@ public class MyGame_Sample_MonsterT: NativeObject {
   public var color: MyGame_Sample_Color
   public var weapons: [MyGame_Sample_WeaponT?]
   public var equipped: MyGame_Sample_EquipmentUnion?
-  public var path: [MyGame_Sample_Vec3?]
+  public var path: [MyGame_Sample_Vec3]
 
   public init(_ _t: inout MyGame_Sample_Monster) {
     pos = _t.pos
@@ -400,14 +378,11 @@ public class MyGame_Sample_MonsterT: NativeObject {
     hp = _t.hp
     name = _t.name
     inventory = []
-    for index in 0..<_t.inventoryCount {
-        inventory.append(_t.inventory(at: index))
-    }
+    inventory.append(contentsOf: _t.inventory)
     color = _t.color
     weapons = []
-    for index in 0..<_t.weaponsCount {
-        var __v_ = _t.weapons(at: index)
-        weapons.append(__v_?.unpack())
+    for var val in _t.weapons{
+        weapons.append(val.unpack())
     }
     switch _t.equippedType {
     case .weapon:
@@ -416,9 +391,7 @@ public class MyGame_Sample_MonsterT: NativeObject {
     default: break
     }
     path = []
-    for index in 0..<_t.pathCount {
-        path.append(_t.path(at: index))
-    }
+    path.append(contentsOf: _t.path)
   }
 
   public init() {
@@ -434,7 +407,7 @@ public class MyGame_Sample_MonsterT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: MyGame_Sample_Monster.self) }
 
 }
-public struct MyGame_Sample_Weapon: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Sample_Weapon: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }

src/idl_gen_swift.cpp

@@ -142,12 +142,6 @@ static std::string GenIndirect(const std::string& reading) {
   return "{{ACCESS}}.indirect(" + reading + ")";
 }
 
-static std::string GenArrayMainBody(const std::string& optional) {
-  return "{{ACCESS_TYPE}} func {{FIELDMETHOD}}(at index: Int32) -> "
-         "{{VALUETYPE}}" +
-         optional + " { ";
-}
-
 }  // namespace
 
 class SwiftGenerator : public BaseGenerator {
@@ -234,7 +228,8 @@ class SwiftGenerator : public BaseGenerator {
     GenComment(struct_def.doc_comment);
     code_.SetValue("STRUCTNAME", namer_.NamespacedType(struct_def));
     code_ +=
-        "{{ACCESS_TYPE}} struct {{STRUCTNAME}}: NativeStruct, Verifiable, "
+        "{{ACCESS_TYPE}} struct {{STRUCTNAME}}: NativeStruct, "
+        "FlatbuffersVectorInitializable, Verifiable, "
         "FlatbuffersInitializable\\";
     if (parser_.opts.generate_object_based_api) code_ += ", NativeObject\\";
     code_ += " {";
@@ -473,7 +468,8 @@ class SwiftGenerator : public BaseGenerator {
     code_.SetValue("OBJECTTYPE", struct_def.fixed ? "Struct" : "Table");
     code_.SetValue("MUTABLE", struct_def.fixed ? Mutable() : "");
     code_ +=
-        "{{ACCESS_TYPE}} struct {{STRUCTNAME}}{{MUTABLE}}: FlatBufferObject\\";
+        "{{ACCESS_TYPE}} struct {{STRUCTNAME}}{{MUTABLE}}: "
+        "FlatBuffer{{OBJECTTYPE}}, FlatbuffersVectorInitializable\\";
     if (!struct_def.fixed) code_ += ", Verifiable\\";
     if (!struct_def.fixed && parser_.opts.generate_object_based_api)
       code_ += ", ObjectAPIPacker\\";
@@ -807,43 +803,23 @@ class SwiftGenerator : public BaseGenerator {
   }
 
   void GenTableReaderVectorFields(const FieldDef& field) {
-    std::string const_string = "return o == 0 ? {{CONSTANT}} : ";
     const auto vectortype = field.value.type.VectorType();
     code_.SetValue("SIZE", NumToString(InlineSize(vectortype)));
-    code_.SetValue("HAS_FIELDVAR", namer_.Variable("has", field));
-    code_ += "{{ACCESS_TYPE}} var {{HAS_FIELDVAR}}: Bool { " + GenOffset() +
-             "return o == 0 ? false : true }";
-    code_ += "{{ACCESS_TYPE}} var {{FIELDVAR}}Count: Int32 { " + GenOffset() +
-             "return o == 0 ? 0 : {{ACCESS}}.vector(count: o) }";
-    code_.SetValue("CONSTANT", IsScalar(vectortype.base_type) ? "0" : "nil");
-    const auto nullable =
-        IsScalar(vectortype.base_type) && !IsEnum(vectortype) ? "" : "?";
+
+    if (vectortype.base_type == BASE_TYPE_STRING) {
+      code_.SetValue("VALUETYPE", "String?");
+    }
 
     if (vectortype.base_type != BASE_TYPE_UNION) {
-      code_ += GenArrayMainBody(nullable) + GenOffset() + "\\";
-    } else {
       code_ +=
-          "{{ACCESS_TYPE}} func {{FIELDVAR}}<T: FlatbuffersInitializable>(at "
-          "index: "
-          "Int32, type: T.Type) -> T? { " +
-          GenOffset() + "\\";
+          "{{ACCESS_TYPE}} var {{FIELDVAR}}: "
+          "FlatbufferVector<{{VALUETYPE}}> "
+          "{ return {{ACCESS}}.vector(at: {{TABLEOFFSET}}.{{OFFSET}}.v, "
+          "byteSize: {{SIZE}}) }";
     }
 
-    if (IsBool(vectortype.base_type)) {
-      code_.SetValue("CONSTANT", field.value.offset == 0 ? "false" : "true");
-      code_.SetValue("VALUETYPE", "Bool");
-    }
-
-    if (!IsEnum(vectortype)) code_ += const_string + "\\";
-
     if (IsScalar(vectortype.base_type) && !IsEnum(vectortype) &&
         !IsBool(field.value.type.base_type)) {
-      code_ +=
-          "{{ACCESS}}.directRead(of: {{VALUETYPE}}.self, offset: "
-          "{{ACCESS}}.vector(at: o) + index * {{SIZE}}) }";
-      code_ +=
-          "{{ACCESS_TYPE}} var {{FIELDVAR}}: [{{VALUETYPE}}] { return "
-          "{{ACCESS}}.getVector(at: {{TABLEOFFSET}}.{{OFFSET}}.v) ?? [] }";
       if (parser_.opts.mutable_buffer) code_ += GenMutateArray();
       GenUnsafeBufferPointer(field);
       return;
@@ -851,34 +827,26 @@ class SwiftGenerator : public BaseGenerator {
 
     if (vectortype.base_type == BASE_TYPE_STRUCT &&
         field.value.type.struct_def->fixed) {
+      code_.SetValue("FIELDVAR", namer_.Method("mutable", field));
       code_ +=
-          "{{ACCESS}}.directRead(of: {{VALUETYPE}}.self, offset: "
-          "{{ACCESS}}.vector(at: o) + index * {{SIZE}}) }";
-      code_.SetValue("FIELDMETHOD", namer_.Method("mutable", field));
-      code_.SetValue("VALUETYPE", GenType(field.value.type) + Mutable());
-      code_ += GenArrayMainBody(nullable) + GenOffset() + const_string +
-               GenConstructor("{{ACCESS}}.vector(at: o) + index * {{SIZE}}");
-
+          "{{ACCESS_TYPE}} var {{FIELDVAR}}: "
+          "FlatbufferVector<{{VALUETYPE}}_Mutable> "
+          "{ return {{ACCESS}}.vector(at: {{TABLEOFFSET}}.{{OFFSET}}.v, "
+          "byteSize: {{SIZE}}) }";
       GenUnsafeBufferPointer(field);
       return;
     }
 
-    if (IsString(vectortype)) {
-      code_ +=
-          "{{ACCESS}}.directString(at: {{ACCESS}}.vector(at: o) + "
-          "index * {{SIZE}}) }";
-      return;
-    }
-
-    if (IsEnum(vectortype)) {
-      code_.SetValue("BASEVALUE", GenTypeBasic(vectortype, false));
-      code_ += "return o == 0 ? {{VALUETYPE}}" + GenEnumDefaultValue(field) +
-               " : {{VALUETYPE}}(rawValue: {{ACCESS}}.directRead(of: "
-               "{{BASEVALUE}}.self, offset: {{ACCESS}}.vector(at: o) + "
-               "index * {{SIZE}})) }";
-      return;
-    }
     if (vectortype.base_type == BASE_TYPE_UNION) {
+      code_ +=
+          "{{ACCESS_TYPE}} var {{FIELDVAR}}: UnionFlatbufferVector "
+          "{ return {{ACCESS}}.unionVector(at: {{TABLEOFFSET}}.{{OFFSET}}.v, "
+          "byteSize: {{SIZE}}) }";
+      code_ +=
+          "{{ACCESS_TYPE}} func {{FIELDVAR}}<T: FlatbuffersInitializable>(at "
+          "index: "
+          "Int32, type: T.Type) -> T? { " +
+          GenOffset() + "return o == 0 ? nil : \\";
       code_ +=
           "{{ACCESS}}.directUnion({{ACCESS}}.vector(at: o) + "
           "index * {{SIZE}}) }";
@@ -887,9 +855,6 @@ class SwiftGenerator : public BaseGenerator {
 
     if (vectortype.base_type == BASE_TYPE_STRUCT &&
         !field.value.type.struct_def->fixed) {
-      code_ += GenConstructor(
-          "{{ACCESS}}.indirect({{ACCESS}}.vector(at: o) + index * "
-          "{{SIZE}})");
       const auto& sd = *field.value.type.struct_def;
       const auto& fields = sd.fields.vec;
       for (auto kit = fields.begin(); kit != fields.end(); ++kit) {
@@ -907,7 +872,8 @@ class SwiftGenerator : public BaseGenerator {
                    namer_.Variable("withUnsafePointerTo", field));
     code_ +=
         "{{ACCESS_TYPE}} func {{functionName}}<T>(_ body: "
-        "(UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try "
+        "(UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return "
+        "try "
         "{{ACCESS}}.withUnsafePointerToSlice(at: {{TABLEOFFSET}}.{{OFFSET}}.v, "
         "body: body) }";
   }
@@ -938,16 +904,15 @@ class SwiftGenerator : public BaseGenerator {
       return;
     if (is_vector) {
       code_ +=
-          "var enumsEncoder = container.nestedUnkeyedContainer(forKey: "
-          ".{{FIELDVAR}}Type)";
+          "try container.encode({{FIELDVAR}}Type, forKey: .charactersType)";
       code_ +=
           "var contentEncoder = container.nestedUnkeyedContainer(forKey: "
           ".{{FIELDVAR}})";
-      code_ += "for index in 0..<{{FIELDVAR}}Count {";
+      code_ += "let _{{FIELDVAR}} = {{FIELDVAR}}Type";
+      code_ +=
+          "for index in _{{FIELDVAR}}.startIndex..<_{{FIELDVAR}}.endIndex {";
       Indent();
-      code_ += "guard let type = {{FIELDVAR}}Type(at: index) else { continue }";
-      code_ += "try enumsEncoder.encode(type)";
-      code_ += "switch type {";
+      code_ += "switch _{{FIELDVAR}}[index] {";
       for (auto it = union_def.Vals().begin(); it != union_def.Vals().end();
            ++it) {
         const auto& ev = **it;
@@ -959,7 +924,8 @@ class SwiftGenerator : public BaseGenerator {
         }
         code_ += "case .{{KEY}}:";
         Indent();
-        code_ += "let _v = {{FIELDVAR}}(at: index, type: {{VALUETYPE}}.self)";
+        code_ +=
+            "let _v = {{FIELDVAR}}(at: Int32(index), type: {{VALUETYPE}}.self)";
         code_ += "try contentEncoder.encode(_v)";
         Outdent();
       }
@@ -998,17 +964,10 @@ class SwiftGenerator : public BaseGenerator {
       if (field.deprecated) continue;
       const auto type = field.value.type;
 
-      const auto is_non_union_vector =
-          (field.value.type.base_type == BASE_TYPE_ARRAY ||
-           field.value.type.base_type == BASE_TYPE_VECTOR) &&
-          field.value.type.VectorType().base_type != BASE_TYPE_UTYPE;
-
       code_.SetValue("FIELDVAR", namer_.Variable(field));
       code_.SetValue("CONSTANT", SwiftConstant(field));
       bool should_indent = true;
-      if (is_non_union_vector) {
-        code_ += "if {{FIELDVAR}}Count > 0 {";
-      } else if (IsEnum(type) && !field.IsOptional()) {
+      if (IsEnum(type) && !field.IsOptional()) {
         code_.SetValue("CONSTANT", GenEnumDefaultValue(field));
         code_ += "if {{FIELDVAR}} != {{CONSTANT}} {";
       } else if (IsFloat(type.base_type) &&
@@ -1027,18 +986,6 @@ class SwiftGenerator : public BaseGenerator {
 
       if (IsUnion(type) && !IsEnum(type)) {
         GenerateEncoderUnionBody(field);
-      } else if (is_non_union_vector &&
-                 (!IsScalar(type.VectorType().base_type) ||
-                  IsEnum(type.VectorType()))) {
-        code_ +=
-            "var contentEncoder = container.nestedUnkeyedContainer(forKey: "
-            ".{{FIELDVAR}})";
-        code_ += "for index in 0..<{{FIELDVAR}}Count {";
-        Indent();
-        code_ += "guard let type = {{FIELDVAR}}(at: index) else { continue }";
-        code_ += "try contentEncoder.encode(type)";
-        Outdent();
-        code_ += "}";
       } else {
         code_ +=
             "try container.encodeIfPresent({{FIELDVAR}}, forKey: "
@@ -1046,8 +993,7 @@ class SwiftGenerator : public BaseGenerator {
       }
       if (should_indent) Outdent();
 
-      if (is_non_union_vector ||
-          (IsScalar(type.base_type) && !field.IsOptional())) {
+      if ((IsScalar(type.base_type) && !field.IsOptional())) {
         code_ += "}";
       }
     }
@@ -1202,7 +1148,8 @@ class SwiftGenerator : public BaseGenerator {
     code_.SetValue("BASE_TYPE", GenTypeBasic(enum_def.underlying_type, false));
     GenComment(enum_def.doc_comment);
     code_ +=
-        "{{ACCESS_TYPE}} enum {{ENUM_NAME}}: {{BASE_TYPE}}, {{ENUM_TYPE}} {";
+        "{{ACCESS_TYPE}} enum {{ENUM_NAME}}: "
+        "{{BASE_TYPE}}, FlatbuffersVectorInitializable, {{ENUM_TYPE}} {";
     Indent();
     code_ += "{{ACCESS_TYPE}} typealias T = {{BASE_TYPE}}";
     if (enum_def.is_union) {
@@ -1481,10 +1428,9 @@ class SwiftGenerator : public BaseGenerator {
           std::string code;
           GenerateStructArgs(*field_type.struct_def, &code, "", "", "_o", true);
           code = code.substr(0, code.size() - 2);
-          code_ += "for i in obj." + field + " {";
+          code_ += "for val in obj." + field + " {";
           Indent();
-          code_ += "guard let _o = i else { continue }";
-          code_ += "builder.create(struct: _o)";
+          code_ += "builder.create(struct: val)";
           Outdent();
           code_ += "}";
           code_ += "let __" + var + " = builder.endVector(len: obj." + field +
@@ -1636,23 +1582,24 @@ class SwiftGenerator : public BaseGenerator {
 
     if (vectortype.base_type != BASE_TYPE_UTYPE) {
       buffer_constructor.push_back(field_var + " = []");
-      buffer_constructor.push_back("for index in 0..<_t." + field_field +
-                                   "Count {");
       base_constructor.push_back(field_var + " = []");
     }
 
     switch (vectortype.base_type) {
       case BASE_TYPE_STRUCT: {
         code_.SetValue("VALUETYPE", GenType(vectortype, true));
-        code_ += "{{ACCESS_TYPE}} var {{FIELDVAR}}: [{{VALUETYPE}}?]";
+        code_.SetValue("OPTIONAL", !vectortype.struct_def->fixed ? "?" : "");
+        code_ +=
+            "{{ACCESS_TYPE}} var {{FIELDVAR}}: [{{VALUETYPE}}{{OPTIONAL}}]";
         if (!vectortype.struct_def->fixed) {
-          buffer_constructor.push_back(indentation + "var __v_ = _t." +
-                                       field_field + "(at: index)");
+          buffer_constructor.push_back("for var val in _t." + field_field +
+                                       "{");
           buffer_constructor.push_back(indentation + field_var +
-                                       ".append(__v_?.unpack())");
+                                       ".append(val.unpack())");
+          buffer_constructor.push_back("}");
         } else {
-          buffer_constructor.push_back(indentation + field_var + ".append(_t." +
-                                       field_var + "(at: index))");
+          buffer_constructor.push_back(field_var + ".append(contentsOf: _t." +
+                                       field_field + ")");
         }
         break;
       }
@@ -1674,21 +1621,11 @@ class SwiftGenerator : public BaseGenerator {
             (IsString(vectortype) ? "String?" : GenType(vectortype)));
         code_ += "{{ACCESS_TYPE}} var {{FIELDVAR}}: [{{VALUETYPE}}]";
 
-        if (IsEnum(vectortype) && vectortype.base_type != BASE_TYPE_UNION) {
-          const auto default_value = IsEnum(field.value.type)
-                                         ? GenEnumDefaultValue(field)
-                                         : SwiftConstant(field);
-          buffer_constructor.push_back(indentation + field_var + ".append(_t." +
-                                       field_field + "(at: index)!)");
-          break;
-        }
-        buffer_constructor.push_back(indentation + field_var + ".append(_t." +
-                                     field_field + "(at: index))");
+        buffer_constructor.push_back(field_var + ".append(contentsOf: _t." +
+                                     field_field + ")");
         break;
       }
     }
-    if (vectortype.base_type != BASE_TYPE_UTYPE)
-      buffer_constructor.push_back("}");
   }
 
   void BuildUnionEnumSwitchCaseWritter(const EnumDef& ed) {
@@ -1720,9 +1657,17 @@ class SwiftGenerator : public BaseGenerator {
     code_ += "{{ACCESS_TYPE}} var {{FIELDVAR}}: \\";
     code_ += is_vector ? "[{{VALUETYPE}}Union?]" : "{{VALUETYPE}}Union?";
 
-    const auto vector_reader = is_vector ? "(at: index" : "";
+    const auto vector_reader = is_vector ? "[index]" : "";
+    if (is_vector) {
+      buffer_constructor.push_back("let _" + field + "Type = _t." + field +
+                                   "Type");
+      buffer_constructor.push_back("for index in _" + field +
+                                   "Type.startIndex..<_" + field +
+                                   "Type.endIndex {");
+    }
+
     buffer_constructor.push_back(indentation + "switch _t." + field + "Type" +
-                                 vector_reader + (is_vector ? ")" : "") + " {");
+                                 vector_reader + " {");
 
     for (auto it = ed.Vals().begin(); it < ed.Vals().end(); ++it) {
       const auto ev = **it;
@@ -1733,18 +1678,28 @@ class SwiftGenerator : public BaseGenerator {
       const auto type = IsStruct(ev.union_type)
                             ? GenType(ev.union_type) + Mutable()
                             : GenType(ev.union_type);
+
       buffer_constructor.push_back(indentation + "case ." + variant + ":");
-      buffer_constructor.push_back(
-          indentation + "  var _v = _t." + field + (is_vector ? "" : "(") +
-          vector_reader + (is_vector ? ", " : "") + "type: " + type + ".self)");
       const auto constructor =
           ns_type + "Union(_v?.unpack(), type: ." + variant + ")";
-      buffer_constructor.push_back(
-          indentation + "  " + field +
-          (is_vector ? ".append(" + constructor + ")" : " = " + constructor));
+      if (is_vector) {
+        buffer_constructor.push_back(indentation + "  var _v = _t." + field +
+                                     "(at: Int32(index), type: " + type +
+                                     ".self)");
+        buffer_constructor.push_back(indentation + "  " + field + ".append(" +
+                                     constructor + ")");
+      } else {
+        buffer_constructor.push_back(indentation + "  var _v = _t." + field +
+                                     "(" + "type: " + type + ".self)");
+        buffer_constructor.push_back(indentation + "  " + field + " = " +
+                                     constructor);
+      }
     }
     buffer_constructor.push_back(indentation + "default: break");
     buffer_constructor.push_back(indentation + "}");
+    if (is_vector) {
+      buffer_constructor.push_back("}");
+    }
   }
 
   void AddMinOrMaxEnumValue(const std::string& str, const std::string& type) {

swift/Sources/Common/Int+extension.swift

@@ -28,9 +28,9 @@ extension Int {
     var n = UInt32(self)
 
     #if arch(arm) || arch(i386)
-      let max = UInt32(Int.max)
+    let max = UInt32(Int.max)
     #else
-      let max = UInt32.max
+    let max = UInt32.max
     #endif
 
     n -= 1

swift/Sources/Common/padding.swift

@@ -23,7 +23,7 @@ import Foundation
 @inline(__always)
 public func padding(
   bufSize: UInt,
-  elementSize: UInt
-) -> UInt {
+  elementSize: UInt) -> UInt
+{
   ((~bufSize) &+ 1) & (elementSize &- 1)
 }

swift/Sources/FlatBuffers/ByteBuffer.swift

@@ -29,8 +29,8 @@ public struct ByteBuffer {
     @usableFromInline
     enum Blob {
       #if !os(WASI)
-        case data(Data)
-        case bytes(ContiguousBytes)
+      case data(Data)
+      case bytes(ContiguousBytes)
       #endif
 
       case byteBuffer(_InternalByteBuffer)
@@ -96,16 +96,16 @@ public struct ByteBuffer {
     @inline(__always)
     func withUnsafeBytes<T>(
       _ body: (UnsafeRawBufferPointer) throws
-        -> T
-    ) rethrows -> T {
+        -> T) rethrows -> T
+    {
       switch retainedBlob {
       case .byteBuffer(let byteBuffer):
         return try byteBuffer.withUnsafeBytes(body)
       #if !os(WASI)
-        case .data(let data):
-          return try data.withUnsafeBytes(body)
-        case .bytes(let contiguousBytes):
-          return try contiguousBytes.withUnsafeBytes(body)
+      case .data(let data):
+        return try data.withUnsafeBytes(body)
+      case .bytes(let contiguousBytes):
+        return try contiguousBytes.withUnsafeBytes(body)
       #endif
       case .array(let array):
         return try array.withUnsafeBytes(body)
@@ -118,21 +118,21 @@ public struct ByteBuffer {
     @inline(__always)
     func withUnsafeRawPointer<T>(
       _ body: (UnsafeMutableRawPointer) throws
-        -> T
-    ) rethrows -> T {
+        -> T) rethrows -> T
+    {
       switch retainedBlob {
       case .byteBuffer(let byteBuffer):
         return try byteBuffer.withUnsafeRawPointer(body)
       #if !os(WASI)
-        case .data(let data):
-          return
-            try data
+      case .data(let data):
+        return
+          try data
             .withUnsafeBytes {
               try body(UnsafeMutableRawPointer(mutating: $0.baseAddress!))
             }
-        case .bytes(let contiguousBytes):
-          return
-            try contiguousBytes
+      case .bytes(let contiguousBytes):
+        return
+          try contiguousBytes
             .withUnsafeBytes {
               try body(UnsafeMutableRawPointer(mutating: $0.baseAddress!))
             }
@@ -140,9 +140,9 @@ public struct ByteBuffer {
       case .array(let array):
         return
           try array
-          .withUnsafeBytes {
-            try body(UnsafeMutableRawPointer(mutating: $0.baseAddress!))
-          }
+            .withUnsafeBytes {
+              try body(UnsafeMutableRawPointer(mutating: $0.baseAddress!))
+            }
       case .pointer(let ptr):
         return try body(ptr)
       }
@@ -152,20 +152,20 @@ public struct ByteBuffer {
     @inline(__always)
     func readWithUnsafeRawPointer<T>(
       position: Int,
-      _ body: (UnsafeRawPointer) throws -> T
-    ) rethrows -> T {
+      _ body: (UnsafeRawPointer) throws -> T) rethrows -> T
+    {
       switch retainedBlob {
       case .byteBuffer(let byteBuffer):
         return try byteBuffer.readWithUnsafeRawPointer(position: position, body)
       #if !os(WASI)
-        case .data(let data):
-          return try data.withUnsafeBytes {
-            try body($0.baseAddress!.advanced(by: position))
-          }
-        case .bytes(let contiguousBytes):
-          return try contiguousBytes.withUnsafeBytes {
-            try body($0.baseAddress!.advanced(by: position))
-          }
+      case .data(let data):
+        return try data.withUnsafeBytes {
+          try body($0.baseAddress!.advanced(by: position))
+        }
+      case .bytes(let contiguousBytes):
+        return try contiguousBytes.withUnsafeBytes {
+          try body($0.baseAddress!.advanced(by: position))
+        }
       #endif
       case .array(let array):
         return try array.withUnsafeBytes {
@@ -197,7 +197,7 @@ public struct ByteBuffer {
       blob: .byteBuffer(byteBuffer),
       capacity: byteBuffer.capacity)
     _readerIndex = Int(byteBuffer.size)
-    self.capacity = byteBuffer.capacity
+    capacity = byteBuffer.capacity
   }
 
   /// Constructor that creates a Flatbuffer from unsafe memory region by copying
@@ -209,8 +209,8 @@ public struct ByteBuffer {
   @inline(__always)
   public init(
     copyingMemoryBound memory: UnsafeRawPointer,
-    capacity: Int
-  ) {
+    capacity: Int)
+  {
     _storage = Storage(count: capacity)
     _storage.copy(from: memory, count: capacity)
     _readerIndex = capacity
@@ -228,29 +228,29 @@ public struct ByteBuffer {
   }
 
   #if !os(WASI)
-    /// Constructor that creates a Flatbuffer from the Swift Data type object
-    /// - Parameter
-    ///   - data: Swift data Object
-    @inline(__always)
-    public init(data: Data) {
-      _storage = Storage(blob: .data(data), capacity: data.count)
-      _readerIndex = data.count
-      capacity = data.count
-    }
+  /// Constructor that creates a Flatbuffer from the Swift Data type object
+  /// - Parameter
+  ///   - data: Swift data Object
+  @inline(__always)
+  public init(data: Data) {
+    _storage = Storage(blob: .data(data), capacity: data.count)
+    _readerIndex = data.count
+    capacity = data.count
+  }
 
-    /// Constructor that creates a Flatbuffer object from a ContiguousBytes
-    /// - Parameters:
-    ///   - contiguousBytes: Binary stripe to use as the buffer
-    ///   - count: amount of readable bytes
-    @inline(__always)
-    public init<Bytes: ContiguousBytes>(
-      contiguousBytes: Bytes,
-      count: Int
-    ) {
-      _storage = Storage(blob: .bytes(contiguousBytes), capacity: count)
-      _readerIndex = count
-      self.capacity = count
-    }
+  /// Constructor that creates a Flatbuffer object from a ContiguousBytes
+  /// - Parameters:
+  ///   - contiguousBytes: Binary stripe to use as the buffer
+  ///   - count: amount of readable bytes
+  @inline(__always)
+  public init<Bytes: ContiguousBytes>(
+    contiguousBytes: Bytes,
+    count: Int)
+  {
+    _storage = Storage(blob: .bytes(contiguousBytes), capacity: count)
+    _readerIndex = count
+    capacity = count
+  }
   #endif
 
   /// Constructor that creates a Flatbuffer from unsafe memory region without copying
@@ -262,8 +262,8 @@ public struct ByteBuffer {
   @inline(__always)
   public init(
     assumingMemoryBound memory: UnsafeMutableRawPointer,
-    capacity: Int
-  ) {
+    capacity: Int)
+  {
     _storage = Storage(
       blob: .pointer(memory),
       capacity: capacity)
@@ -280,8 +280,8 @@ public struct ByteBuffer {
   init(
     blob: Storage.Blob,
     count: Int,
-    removing removeBytes: Int
-  ) {
+    removing removeBytes: Int)
+  {
     _storage = Storage(blob: blob, capacity: count)
     _readerIndex = removeBytes
     capacity = count
@@ -332,8 +332,8 @@ public struct ByteBuffer {
   @inline(__always)
   public func readSlice<T>(
     index: Int,
-    count: Int
-  ) -> [T] {
+    count: Int) -> [T]
+  {
     assert(
       index + count <= capacity,
       "Reading out of bounds is illegal")
@@ -355,8 +355,8 @@ public struct ByteBuffer {
   public func withUnsafePointerToSlice<T>(
     index: Int,
     count: Int,
-    body: (UnsafeRawBufferPointer) throws -> T
-  ) rethrows -> T {
+    body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T
+  {
     assert(
       index + count <= capacity,
       "Reading out of bounds is illegal")
@@ -366,46 +366,46 @@ public struct ByteBuffer {
   }
 
   #if !os(WASI)
-    /// Reads a string from the buffer and encodes it to a swift string
-    /// - Parameters:
-    ///   - index: index of the string in the buffer
-    ///   - count: length of the string
-    ///   - type: Encoding of the string
-    @inline(__always)
-    public func readString(
-      at index: Int,
-      count: Int,
-      type: String.Encoding = .utf8
-    ) -> String? {
-      assert(
-        index + count <= capacity,
-        "Reading out of bounds is illegal")
-      return _storage.readWithUnsafeRawPointer(position: index) {
-        let buf = UnsafeBufferPointer(
-          start: $0.bindMemory(to: UInt8.self, capacity: count),
-          count: count)
-        return String(
-          bytes: buf,
-          encoding: type)
-      }
+  /// Reads a string from the buffer and encodes it to a swift string
+  /// - Parameters:
+  ///   - index: index of the string in the buffer
+  ///   - count: length of the string
+  ///   - type: Encoding of the string
+  @inline(__always)
+  public func readString(
+    at index: Int,
+    count: Int,
+    type: String.Encoding = .utf8) -> String?
+  {
+    assert(
+      index + count <= capacity,
+      "Reading out of bounds is illegal")
+    return _storage.readWithUnsafeRawPointer(position: index) {
+      let buf = UnsafeBufferPointer(
+        start: $0.bindMemory(to: UInt8.self, capacity: count),
+        count: count)
+      return String(
+        bytes: buf,
+        encoding: type)
     }
+  }
   #else
-    /// Reads a string from the buffer and encodes it to a swift string
-    /// - Parameters:
-    ///   - index: index of the string in the buffer
-    ///   - count: length of the string
-    @inline(__always)
-    public func readString(
-      at index: Int,
-      count: Int
-    ) -> String? {
-      assert(
-        index + count <= capacity,
-        "Reading out of bounds is illegal")
-      return _storage.readWithUnsafeRawPointer(position: index) {
-        String(cString: $0.bindMemory(to: UInt8.self, capacity: count))
-      }
+  /// Reads a string from the buffer and encodes it to a swift string
+  /// - Parameters:
+  ///   - index: index of the string in the buffer
+  ///   - count: length of the string
+  @inline(__always)
+  public func readString(
+    at index: Int,
+    count: Int) -> String?
+  {
+    assert(
+      index + count <= capacity,
+      "Reading out of bounds is illegal")
+    return _storage.readWithUnsafeRawPointer(position: index) {
+      String(cString: $0.bindMemory(to: UInt8.self, capacity: count))
     }
+  }
   #endif
 
   /// Creates a new Flatbuffer object that's duplicated from the current one
@@ -437,8 +437,8 @@ public struct ByteBuffer {
   @inline(__always)
   public func withUnsafeBytes<T>(
     body: (UnsafeRawBufferPointer) throws
-      -> T
-  ) rethrows -> T {
+      -> T) rethrows -> T
+  {
     try _storage.withUnsafeBytes(body)
   }
 
@@ -446,8 +446,8 @@ public struct ByteBuffer {
   @inline(__always)
   func withUnsafeMutableRawPointer<T>(
     body: (UnsafeMutableRawPointer) throws
-      -> T
-  ) rethrows -> T {
+      -> T) rethrows -> T
+  {
     try _storage.withUnsafeRawPointer(body)
   }
 
@@ -455,8 +455,8 @@ public struct ByteBuffer {
   @inline(__always)
   func readWithUnsafeRawPointer<T>(
     position: Int,
-    _ body: (UnsafeRawPointer) throws -> T
-  ) rethrows -> T {
+    _ body: (UnsafeRawPointer) throws -> T) rethrows -> T
+  {
     try _storage.readWithUnsafeRawPointer(position: position, body)
   }
 }

swift/Sources/FlatBuffers/Constants.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 /// Type aliases
@@ -28,7 +28,7 @@ public typealias VOffset = UInt16
 /// Maximum size for a buffer
 public let FlatBufferMaxSize =
   UInt32
-  .max << ((MemoryLayout<SOffset>.size * 8 - 1) - 1)
+    .max << ((MemoryLayout<SOffset>.size * 8 - 1) - 1)
 
 /// Protocol that All Scalars should conform to
 ///
@@ -36,28 +36,28 @@ public let FlatBufferMaxSize =
 
 extension Scalar where Self: FixedWidthInteger {}
 
-extension Double: Verifiable {}
+extension Double: Verifiable, FlatbuffersVectorInitializable {}
 
-extension Float32: Verifiable {}
+extension Float32: Verifiable, FlatbuffersVectorInitializable {}
 
-extension Bool: Verifiable {}
+extension Bool: Verifiable, FlatbuffersVectorInitializable {}
 
-extension Int: Verifiable {}
+extension Int: Verifiable, FlatbuffersVectorInitializable {}
 
-extension Int8: Verifiable {}
+extension Int8: Verifiable, FlatbuffersVectorInitializable {}
 
-extension Int16: Verifiable {}
+extension Int16: Verifiable, FlatbuffersVectorInitializable {}
 
-extension Int32: Verifiable {}
+extension Int32: Verifiable, FlatbuffersVectorInitializable {}
 
-extension Int64: Verifiable {}
+extension Int64: Verifiable, FlatbuffersVectorInitializable {}
 
-extension UInt8: Verifiable {}
+extension UInt8: Verifiable, FlatbuffersVectorInitializable {}
 
-extension UInt16: Verifiable {}
+extension UInt16: Verifiable, FlatbuffersVectorInitializable {}
 
-extension UInt32: Verifiable {}
+extension UInt32: Verifiable, FlatbuffersVectorInitializable {}
 
-extension UInt64: Verifiable {}
+extension UInt64: Verifiable, FlatbuffersVectorInitializable {}
 
 public func FlatBuffersVersion_25_9_23() {}

swift/Sources/FlatBuffers/Enum.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 /// Enum is a protocol that all flatbuffers enums should conform to
@@ -28,8 +28,13 @@ public protocol Enum {
   associatedtype T: Scalar & Verifiable
   /// Size of the current associatedtype in the enum
   static var byteSize: Int { get }
+  /// Provides a static min value in case we fail to decode
+  /// in vectors
+  static var min: Self { get }
   /// The current value the enum hosts
   var value: T { get }
+
+  init?(rawValue: T)
 }
 
 extension Enum where Self: Verifiable {
@@ -44,8 +49,8 @@ extension Enum where Self: Verifiable {
   public static func verify<T>(
     _ verifier: inout Verifier,
     at position: Int,
-    of type: T.Type
-  ) throws where T: Verifiable {
+    of type: T.Type) throws where T: Verifiable
+  {
     try verifier.inBuffer(position: position, of: type.self)
   }
 

swift/Sources/FlatBuffers/FlatBufferBuilder.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 /// ``FlatBufferBuilder`` builds a `FlatBuffer` through manipulating its internal state.
@@ -63,21 +63,21 @@ public struct FlatBufferBuilder {
   public var capacity: Int { _bb.capacity }
 
   #if !os(WASI)
-    /// Data representation of the buffer
-    ///
-    /// Should only be used after ``finish(offset:addPrefix:)`` is called
-    public var data: Data {
-      assert(finished, "Data shouldn't be called before finish()")
-      return _bb.withUnsafeSlicedBytes { ptr in
-        var data = Data()
-        data.append(
-          ptr.baseAddress!.bindMemory(
-            to: UInt8.self,
-            capacity: ptr.count),
-          count: ptr.count)
-        return data
-      }
+  /// Data representation of the buffer
+  ///
+  /// Should only be used after ``finish(offset:addPrefix:)`` is called
+  public var data: Data {
+    assert(finished, "Data shouldn't be called before finish()")
+    return _bb.withUnsafeSlicedBytes { ptr in
+      var data = Data()
+      data.append(
+        ptr.baseAddress!.bindMemory(
+          to: UInt8.self,
+          capacity: ptr.count),
+        count: ptr.count)
+      return data
     }
+  }
   #endif
 
   /// Returns the underlying bytes in the ``ByteBuffer``
@@ -132,8 +132,8 @@ public struct FlatBufferBuilder {
   /// however the builder can be force by passing true for `serializeDefaults`
   public init(
     initialSize: Int32 = 1024,
-    serializeDefaults force: Bool = false
-  ) {
+    serializeDefaults force: Bool = false)
+  {
     assert(initialSize > 0, "Size should be greater than zero!")
     guard isLitteEndian else {
       fatalError(
@@ -200,8 +200,8 @@ public struct FlatBufferBuilder {
   mutating public func finish(
     offset: Offset,
     fileId: String,
-    addPrefix prefix: Bool = false
-  ) {
+    addPrefix prefix: Bool = false)
+  {
     let size = MemoryLayout<UOffset>.size
     preAlign(
       len: size &+ (prefix ? size : 0) &+ FileIdLength,
@@ -230,8 +230,8 @@ public struct FlatBufferBuilder {
   /// include the size of the current buffer.
   mutating public func finish(
     offset: Offset,
-    addPrefix prefix: Bool = false
-  ) {
+    addPrefix prefix: Bool = false)
+  {
     notNested()
     let size = MemoryLayout<UOffset>.size
     preAlign(len: size &+ (prefix ? size : 0), alignment: _minAlignment)
@@ -470,8 +470,8 @@ public struct FlatBufferBuilder {
   @inline(__always)
   mutating public func createVector<T: Scalar>(
     _ elements: [T],
-    size: Int
-  ) -> Offset {
+    size: Int) -> Offset
+  {
     let size = size
     startVector(size, elementSize: MemoryLayout<T>.size)
     _bb.push(elements: elements)
@@ -479,20 +479,20 @@ public struct FlatBufferBuilder {
   }
 
   #if swift(>=5.0) && !os(WASI)
-    @inline(__always)
-    /// Creates a vector of bytes in the buffer.
-    ///
-    /// Allows creating a vector from `Data` without copying to a `[UInt8]`
-    ///
-    /// - Parameter bytes: bytes to be written into the buffer
-    /// - Returns: ``Offset`` of the vector
-    mutating public func createVector(bytes: ContiguousBytes) -> Offset {
-      bytes.withUnsafeBytes {
-        startVector($0.count, elementSize: MemoryLayout<UInt8>.size)
-        _bb.push(bytes: $0)
-        return endVector(len: $0.count)
-      }
+  @inline(__always)
+  /// Creates a vector of bytes in the buffer.
+  ///
+  /// Allows creating a vector from `Data` without copying to a `[UInt8]`
+  ///
+  /// - Parameter bytes: bytes to be written into the buffer
+  /// - Returns: ``Offset`` of the vector
+  mutating public func createVector(bytes: ContiguousBytes) -> Offset {
+    bytes.withUnsafeBytes {
+      startVector($0.count, elementSize: MemoryLayout<UInt8>.size)
+      _bb.push(bytes: $0)
+      return endVector(len: $0.count)
     }
+  }
   #endif
 
   /// Creates a vector of type ``Enum`` into the ``ByteBuffer``
@@ -530,8 +530,8 @@ public struct FlatBufferBuilder {
   @inline(__always)
   mutating public func createVector<T: Enum>(
     _ elements: [T],
-    size: Int
-  ) -> Offset {
+    size: Int) -> Offset
+  {
     let size = size
     startVector(size, elementSize: T.byteSize)
     for index in stride(from: elements.count, to: 0, by: -1) {
@@ -576,8 +576,8 @@ public struct FlatBufferBuilder {
   @inline(__always)
   mutating public func createVector(
     ofOffsets offsets: [Offset],
-    len: Int
-  ) -> Offset {
+    len: Int) -> Offset
+  {
     startVector(len, elementSize: MemoryLayout<Offset>.size)
     for index in stride(from: offsets.count, to: 0, by: -1) {
       push(element: offsets[index &- 1])
@@ -653,8 +653,8 @@ public struct FlatBufferBuilder {
   @inline(__always)
   @discardableResult
   mutating public func create<T: NativeStruct>(
-    struct s: T, position: VOffset
-  ) -> Offset {
+    struct s: T, position: VOffset) -> Offset
+  {
     let offset = create(struct: s)
     _vtableStorage.add(
       loc: (offset: _bb.size, position: VOffset(position)))
@@ -678,8 +678,8 @@ public struct FlatBufferBuilder {
   @inline(__always)
   @discardableResult
   mutating public func create<T: NativeStruct>(
-    struct s: T
-  ) -> Offset {
+    struct s: T) -> Offset
+  {
     let size = MemoryLayout<T>.size
     preAlign(len: size, alignment: MemoryLayout<T>.alignment)
     _bb.push(struct: s, size: size)
@@ -794,8 +794,8 @@ public struct FlatBufferBuilder {
   mutating public func add<T: Scalar>(
     element: T,
     def: T,
-    at position: VOffset
-  ) {
+    at position: VOffset)
+  {
     if element == def && !serializeDefaults { return }
     track(offset: push(element: element), at: position)
   }

swift/Sources/FlatBuffers/FlatBufferObject.swift

@@ -28,8 +28,17 @@ public protocol FlatbuffersInitializable {
   init(_ bb: ByteBuffer, o: Int32)
 }
 
-/// FlatbufferObject structures all the Flatbuffers objects
-public protocol FlatBufferObject: FlatbuffersInitializable {
+/// FlatbufferTabke structures all the Flatbuffers tables
+public protocol FlatBufferTable: FlatbuffersInitializable,
+  FlatbuffersVectorInitializable
+{
+  var __buffer: ByteBuffer! { get }
+}
+
+/// FlatbufferStruct structures all the Flatbuffers structs
+public protocol FlatBufferStruct: FlatbuffersInitializable,
+  FlatbuffersVectorInitializable
+{
   var __buffer: ByteBuffer! { get }
 }
 

swift/Sources/FlatBuffers/FlatbuffersErrors.swift

@@ -63,13 +63,13 @@ public enum FlatbuffersErrors: Error, Equatable {
 
 #if !os(WASI)
 
-  extension FlatbuffersErrors {
-    public static func == (
-      lhs: FlatbuffersErrors,
-      rhs: FlatbuffersErrors
-    ) -> Bool {
-      lhs.localizedDescription == rhs.localizedDescription
-    }
+extension FlatbuffersErrors {
+  public static func == (
+    lhs: FlatbuffersErrors,
+    rhs: FlatbuffersErrors) -> Bool
+  {
+    lhs.localizedDescription == rhs.localizedDescription
   }
+}
 
 #endif

swift/Sources/FlatBuffers/Message.swift

@@ -28,20 +28,20 @@ public protocol FlatBufferGRPCMessage {
   @inline(__always)
   func withUnsafeReadableBytes<T>(
     _ body: (UnsafeRawBufferPointer) throws
-      -> T
-  ) rethrows -> T
+      -> T) rethrows -> T
 }
 
 /// Message is a wrapper around Buffers to to able to send Flatbuffers `Buffers` through the
 /// GRPC library
-public struct Message<T: FlatBufferObject>: FlatBufferGRPCMessage {
+public struct Message<T: FlatBufferTable>: FlatBufferGRPCMessage {
   internal var 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))
+      o: Int32(buffer.read(def: UOffset.self, position: buffer.reader)) &+
+        Int32(buffer.reader))
   }
 
   public var size: Int { Int(buffer.size) }
@@ -66,8 +66,8 @@ public struct Message<T: FlatBufferObject>: FlatBufferGRPCMessage {
   @inline(__always)
   public func withUnsafeReadableBytes<Data>(
     _ body: (UnsafeRawBufferPointer) throws
-      -> Data
-  ) rethrows -> Data {
+      -> Data) rethrows -> Data
+  {
     return try buffer.readWithUnsafeRawPointer(position: buffer.reader) {
       try body(UnsafeRawBufferPointer(start: $0, count: size))
     }

swift/Sources/FlatBuffers/Mutable.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 /// Mutable is a protocol that allows us to mutate Scalar values within a ``ByteBuffer``

swift/Sources/FlatBuffers/NativeObject.swift

@@ -27,7 +27,8 @@ extension NativeObject {
   /// - Parameter type: Type of the Flatbuffer object
   /// - Returns: returns the encoded sized ByteBuffer
   public func serialize<T: ObjectAPIPacker>(type: T.Type) -> ByteBuffer
-  where T.T == Self {
+    where T.T == Self
+  {
     var builder = FlatBufferBuilder(initialSize: 1024)
     return serialize(builder: &builder, type: type.self)
   }
@@ -42,8 +43,8 @@ extension NativeObject {
   ///  It can be considered less expensive in terms of memory allocation
   public func serialize<T: ObjectAPIPacker>(
     builder: inout FlatBufferBuilder,
-    type: T.Type
-  ) -> ByteBuffer where T.T == Self {
+    type: T.Type) -> ByteBuffer where T.T == Self
+  {
     var s = self
     let root = type.pack(&builder, obj: &s)
     builder.finish(offset: root)

swift/Sources/FlatBuffers/Root.swift

@@ -26,11 +26,11 @@ import Foundation
 ///
 /// ``getPrefixedSizeCheckedRoot(byteBuffer:options:)`` would skip the first Bytes in
 /// the ``ByteBuffer`` and verifies the buffer by calling ``getCheckedRoot(byteBuffer:options:)``
-public func getPrefixedSizeCheckedRoot<T: FlatBufferObject & Verifiable>(
+public func getPrefixedSizeCheckedRoot<T: FlatBufferTable & Verifiable>(
   byteBuffer: inout ByteBuffer,
   fileId: String? = nil,
-  options: VerifierOptions = .init()
-) throws -> T {
+  options: VerifierOptions = .init()) throws -> T
+{
   byteBuffer.skipPrefix()
   return try getCheckedRoot(
     byteBuffer: &byteBuffer,
@@ -48,11 +48,11 @@ public func getPrefixedSizeCheckedRoot<T: FlatBufferObject & Verifiable>(
 ///
 /// ``getPrefixedSizeCheckedRoot(byteBuffer:options:)`` would skip the first Bytes in
 /// the ``ByteBuffer`` and verifies the buffer by calling ``getCheckedRoot(byteBuffer:options:)``
-public func getCheckedPrefixedSizeRoot<T: FlatBufferObject & Verifiable>(
+public func getCheckedPrefixedSizeRoot<T: FlatBufferTable & Verifiable>(
   byteBuffer: inout ByteBuffer,
   fileId: String? = nil,
-  options: VerifierOptions = .init()
-) throws -> T {
+  options: VerifierOptions = .init()) throws -> T
+{
   let prefix = byteBuffer.skipPrefix()
   if prefix != byteBuffer.size {
     throw FlatbuffersErrors.prefixedSizeNotEqualToBufferSize
@@ -70,9 +70,8 @@ public func getCheckedPrefixedSizeRoot<T: FlatBufferObject & Verifiable>(
 ///
 /// ``getPrefixedSizeCheckedRoot(byteBuffer:options:)`` would skip the first Bytes in
 /// the ``ByteBuffer`` and then calls ``getRoot(byteBuffer:)``
-public func getPrefixedSizeRoot<T: FlatBufferObject>(
-  byteBuffer: inout ByteBuffer
-)
+public func getPrefixedSizeRoot<T: FlatBufferTable>(
+  byteBuffer: inout ByteBuffer)
   -> T
 {
   byteBuffer.skipPrefix()
@@ -90,11 +89,11 @@ public func getPrefixedSizeRoot<T: FlatBufferObject>(
 /// ``getCheckedRoot(byteBuffer:options:)`` Takes in a ``ByteBuffer`` and verifies
 /// that by creating a ``Verifier`` and checkes if all the `Bytes` and correctly aligned
 /// and within the ``ByteBuffer`` range.
-public func getCheckedRoot<T: FlatBufferObject & Verifiable>(
+public func getCheckedRoot<T: FlatBufferTable & Verifiable>(
   byteBuffer: inout ByteBuffer,
   fileId: String? = nil,
-  options: VerifierOptions = .init()
-) throws -> T {
+  options: VerifierOptions = .init()) throws -> T
+{
   var verifier = try Verifier(buffer: &byteBuffer, options: options)
   if let fileId = fileId {
     try verifier.verify(id: fileId)
@@ -109,7 +108,7 @@ public func getCheckedRoot<T: FlatBufferObject & Verifiable>(
 /// Returns a `NON-Checked` flatbuffers object
 /// - Parameter byteBuffer: Buffer that contains data
 /// - Returns: Returns a Flatbuffers object
-public func getRoot<T: FlatBufferObject>(byteBuffer: inout ByteBuffer) -> T {
+public func getRoot<T: FlatBufferTable>(byteBuffer: inout ByteBuffer) -> T {
   T.init(
     byteBuffer,
     o: Int32(byteBuffer.read(def: UOffset.self, position: byteBuffer.reader))

swift/Sources/FlatBuffers/String+extension.swift

@@ -28,8 +28,8 @@ extension String: Verifiable {
   public static func verify<T>(
     _ verifier: inout Verifier,
     at position: Int,
-    of type: T.Type
-  ) throws where T: Verifiable {
+    of type: T.Type) throws where T: Verifiable
+  {
 
     let range = try String.verifyRange(&verifier, at: position, of: UInt8.self)
     /// Safe &+ since we already check for overflow in verify range
@@ -75,16 +75,16 @@ extension String: ObjectAPIPacker {
 
   public static func pack(
     _ builder: inout FlatBufferBuilder,
-    obj: inout String?
-  ) -> Offset {
+    obj: inout String?) -> Offset
+  {
     guard var obj = obj else { return Offset() }
     return pack(&builder, obj: &obj)
   }
 
   public static func pack(
     _ builder: inout FlatBufferBuilder,
-    obj: inout String
-  ) -> Offset {
+    obj: inout String) -> Offset
+  {
     builder.create(string: obj)
   }
 
@@ -97,14 +97,15 @@ extension String: ObjectAPIPacker {
 extension String: NativeObject {
 
   public func serialize<T: ObjectAPIPacker>(type: T.Type) -> ByteBuffer
-  where T.T == Self {
+    where T.T == Self
+  {
     fatalError("serialize should never be called from string directly")
   }
 
   public func serialize<T: ObjectAPIPacker>(
     builder: inout FlatBufferBuilder,
-    type: T.Type
-  ) -> ByteBuffer where T.T == Self {
+    type: T.Type) -> ByteBuffer where T.T == Self
+  {
     fatalError("serialize should never be called from string directly")
   }
 }

swift/Sources/FlatBuffers/Struct.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 /// Struct is a representation of a mutable `Flatbuffers` struct

swift/Sources/FlatBuffers/Table.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 /// `Table` is a Flatbuffers object that can read,
@@ -71,15 +71,7 @@ public struct Table {
   /// String reads from the buffer with respect to position of the current table.
   /// - Parameter offset: Offset of the string
   public func string(at offset: Int32) -> String? {
-    directString(at: offset &+ position)
-  }
-
-  /// Direct string reads from the buffer disregarding the position of the table.
-  /// It would be preferable to use string unless the current position of the table
-  /// is not needed
-  /// - Parameter offset: Offset of the string
-  public func directString(at offset: Int32) -> String? {
-    var offset = offset
+    var offset = offset &+ position
     offset &+= bb.read(def: Int32.self, position: Int(offset))
     let count = bb.read(def: Int32.self, position: Int(offset))
     let position = Int(offset) &+ MemoryLayout<Int32>.size
@@ -91,24 +83,7 @@ public struct Table {
   ///   - 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 {
-    directRead(of: T.self, offset: o &+ position)
-  }
-
-  /// Reads from the buffer disregarding the position of the table.
-  /// It would be used when reading from an
-  ///   ```
-  ///   let offset = __t.offset(10)
-  ///   //Only used when the we already know what is the
-  ///   // position in the table since __t.vector(at:)
-  ///   // returns the index with respect to the position
-  ///   __t.directRead(of: Byte.self,
-  ///                  offset: __t.vector(at: offset) + index * 1)
-  ///   ```
-  /// - Parameters:
-  ///   - type: Type of Element that needs to be read from the buffer
-  ///   - o: Offset of the Element
-  public func directRead<T>(of type: T.Type, offset o: Int32) -> T {
-    bb.read(def: T.self, position: Int(o))
+    bb.read(def: T.self, position: Int(o &+ position))
   }
 
   /// Returns that current `Union` object at a specific offset
@@ -137,6 +112,35 @@ public struct Table {
     return bb.readSlice(index: Int(vector(at: o)), count: Int(vector(count: o)))
   }
 
+  public func vector<T>(at off: Int32, byteSize: Int) -> FlatbufferVector<T> {
+    let off = offset(off)
+    return FlatbufferVector(
+      bb: bb,
+      startPosition: vector(at: off),
+      count: Int(count(offset: off)),
+      byteSize: byteSize)
+  }
+
+  public func unionVector(
+    at off: Int32,
+    byteSize: Int) -> UnionFlatbufferVector
+  {
+    let off = offset(off)
+    return UnionFlatbufferVector(
+      bb: bb,
+      startPosition: vector(at: off),
+      count: Int(count(offset: off)),
+      byteSize: byteSize)
+  }
+
+  private func count(offset: Int32) -> Int32 {
+    if offset == 0 {
+      return 0
+    }
+
+    return vector(count: offset)
+  }
+
   /// Returns the underlying pointer to a vector within the buffer
   /// This should only be used by `Scalars`
   /// - Parameter off: Readable offset
@@ -144,14 +148,15 @@ public struct Table {
   @inline(__always)
   public func withUnsafePointerToSlice<T>(
     at off: Int32,
-    body: (UnsafeRawBufferPointer) throws -> T
-  ) rethrows -> T? {
+    body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T?
+  {
     let o = offset(off)
     guard o != 0 else { return nil }
+    let count = Int(vector(count: o))
     return try bb.withUnsafePointerToSlice(
       index: Int(vector(at: o)),
-      count: Int(vector(count: o)),
-      body: body)
+      count: count,
+      body: { try body($0, count) })
   }
 
   /// Vector count gets the count of Elements within the array
@@ -192,8 +197,8 @@ public struct Table {
   static public func offset(
     _ o: Int32,
     vOffset: Int32,
-    fbb: inout FlatBufferBuilder
-  ) -> Int32 {
+    fbb: inout FlatBufferBuilder) -> Int32
+  {
     let vTable = Int32(fbb.capacity) &- o
     return vTable
       &+ Int32(
@@ -216,8 +221,8 @@ public struct Table {
   static public func compare(
     _ off1: Int32,
     _ off2: Int32,
-    fbb: inout FlatBufferBuilder
-  ) -> Int32 {
+    fbb: inout FlatBufferBuilder) -> Int32
+  {
     let memorySize = Int32(MemoryLayout<Int32>.size)
     let _off1 = off1 &+ fbb.read(def: Int32.self, position: Int(off1))
     let _off2 = off2 &+ fbb.read(def: Int32.self, position: Int(off2))
@@ -246,8 +251,8 @@ public struct Table {
   static public func compare(
     _ off1: Int32,
     _ key: [Byte],
-    fbb: inout FlatBufferBuilder
-  ) -> Int32 {
+    fbb: inout FlatBufferBuilder) -> Int32
+  {
     let memorySize = Int32(MemoryLayout<Int32>.size)
     let _off1 = off1 &+ fbb.read(def: Int32.self, position: Int(off1))
     let len1 = fbb.read(def: Int32.self, position: Int(_off1))
@@ -274,8 +279,8 @@ public struct Table {
   static public func offset(
     _ o: Int32,
     vOffset: Int32,
-    fbb: ByteBuffer
-  ) -> Int32 {
+    fbb: ByteBuffer) -> Int32
+  {
     let vTable = Int32(fbb.capacity) &- o
     return vTable
       &+ Int32(
@@ -298,8 +303,8 @@ public struct Table {
   static public func compare(
     _ off1: Int32,
     _ off2: Int32,
-    fbb: ByteBuffer
-  ) -> Int32 {
+    fbb: ByteBuffer) -> Int32
+  {
     let memorySize = Int32(MemoryLayout<Int32>.size)
     let _off1 = off1 &+ fbb.read(def: Int32.self, position: Int(off1))
     let _off2 = off2 &+ fbb.read(def: Int32.self, position: Int(off2))
@@ -328,8 +333,8 @@ public struct Table {
   static public func compare(
     _ off1: Int32,
     _ key: [Byte],
-    fbb: ByteBuffer
-  ) -> Int32 {
+    fbb: ByteBuffer) -> Int32
+  {
     let memorySize = Int32(MemoryLayout<Int32>.size)
     let _off1 = off1 &+ fbb.read(def: Int32.self, position: Int(off1))
     let len1 = fbb.read(def: Int32.self, position: Int(_off1))

swift/Sources/FlatBuffers/TableVerifier.swift

@@ -45,8 +45,8 @@ public struct TableVerifier {
     position: Int,
     vtable: Int,
     vtableLength: Int,
-    verifier: inout Verifier
-  ) {
+    verifier: inout Verifier)
+  {
     _position = position
     _vtable = vtable
     _vtableLength = vtableLength
@@ -84,8 +84,8 @@ public struct TableVerifier {
     field: VOffset,
     fieldName: String,
     required: Bool,
-    type: T.Type
-  ) throws where T: Verifiable {
+    type: T.Type) throws where T: Verifiable
+  {
     let derefValue = try dereference(field)
 
     if let value = derefValue {
@@ -115,9 +115,9 @@ public struct TableVerifier {
     unionKeyName: String,
     fieldName: String,
     required: Bool,
-    completion: @escaping (inout Verifier, T, Int) throws -> Void
-  ) throws
-  where T: UnionEnum {
+    completion: @escaping (inout Verifier, T, Int) throws -> Void) throws
+    where T: UnionEnum
+  {
     let keyPos = try dereference(key)
     let valPos = try dereference(field)
 
@@ -131,7 +131,7 @@ public struct TableVerifier {
     }
 
     if let _key = keyPos,
-      let _val = valPos
+       let _val = valPos
     {
       /// verifiying that the key is within the buffer
       try T.T.verify(&_verifier, at: _key, of: T.T.self)
@@ -172,14 +172,14 @@ public struct TableVerifier {
     unionKeyName: String,
     fieldName: String,
     required: Bool,
-    completion: @escaping (inout Verifier, T, Int) throws -> Void
-  ) throws
-  where T: UnionEnum {
+    completion: @escaping (inout Verifier, T, Int) throws -> Void) throws
+    where T: UnionEnum
+  {
     let keyVectorPosition = try dereference(key)
     let offsetVectorPosition = try dereference(field)
 
     if let keyPos = keyVectorPosition,
-      let valPos = offsetVectorPosition
+       let valPos = offsetVectorPosition
     {
       try UnionVector<T>.verify(
         &_verifier,

swift/Sources/FlatBuffers/Vectors/FlatbufferVector.swift

@@ -0,0 +1,77 @@
+/*
+ * 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 Foundation
+
+public struct FlatbufferVector<
+  Element: FlatbuffersVectorInitializable
+>: RandomAccessCollection {
+  public typealias Element = Element
+  public typealias Index = Int
+
+  private let bb: ByteBuffer
+  private let byteSize: Int
+  private let startPosition: Int32
+  public let count: Int
+
+  init(
+    bb: ByteBuffer,
+    startPosition: Int32,
+    count: Int,
+    byteSize: Int)
+  {
+    self.bb = bb
+    self.byteSize = byteSize
+    self.count = count
+    self.startPosition = startPosition
+  }
+
+  public var startIndex: Int {
+    0
+  }
+
+  public var endIndex: Int {
+    count
+  }
+
+  public var isEmpty: Bool {
+    count == 0
+  }
+
+
+  public subscript(position: Int) -> Element {
+    guard position < count else {
+      fatalError(
+        "Trying to read element at index \(position) in a vector of size \(count)")
+    }
+    let index = startPosition &+ Int32(position &* byteSize)
+    return Element.readFrom(byteBuffer: bb, index: Int(index))
+  }
+
+  public func index(after i: Int) -> Int {
+    guard i < count else { return count }
+    return i &+ 1
+  }
+}
+
+extension FlatbufferVector: Encodable where Element: Encodable {
+  public func encode(to encoder: Encoder) throws {
+    var container = encoder.unkeyedContainer()
+    for element in self {
+      try container.encode(element)
+    }
+  }
+}

swift/Sources/FlatBuffers/Vectors/FlatbuffersVectorInitializable.swift

@@ -0,0 +1,69 @@
+/*
+ * 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 Foundation
+
+#if canImport(Common)
+import Common
+#endif
+
+public protocol FlatbuffersVectorInitializable {
+  static func readFrom(byteBuffer: ByteBuffer, index: Int) -> Self
+}
+
+extension Scalar where Self: FlatbuffersVectorInitializable {
+  public static func readFrom(byteBuffer: ByteBuffer, index: Int) -> Self {
+    byteBuffer.read(def: Self.self, position: index)
+  }
+}
+
+extension NativeStruct where Self: FlatbuffersVectorInitializable {
+  public static func readFrom(byteBuffer: ByteBuffer, index: Int) -> Self {
+    byteBuffer.read(def: Self.self, position: index)
+  }
+}
+
+extension FlatBufferStruct {
+  public static func readFrom(byteBuffer: ByteBuffer, index: Int) -> Self {
+    Self.init(byteBuffer, o: Int32(index))
+  }
+}
+
+extension FlatBufferTable {
+  public static func readFrom(byteBuffer: ByteBuffer, index: Int) -> Self {
+    return Self.init(
+      byteBuffer,
+      o: Int32(index) &+ byteBuffer.read(def: Int32.self, position: index))
+  }
+}
+
+extension Optional: FlatbuffersVectorInitializable where Wrapped == String {
+  public static func readFrom(byteBuffer: ByteBuffer, index: Int) -> Self {
+    var index = Int32(index)
+    index &+= byteBuffer.read(def: Int32.self, position: Int(index))
+    let count = byteBuffer.read(def: Int32.self, position: Int(index))
+    let position = Int(index) &+ MemoryLayout<Int32>.size
+    return byteBuffer.readString(at: position, count: Int(count))
+  }
+}
+
+extension Enum where Self: FlatbuffersVectorInitializable {
+  public static func readFrom(byteBuffer: ByteBuffer, index: Int) -> Self {
+    Self
+      .init(rawValue: byteBuffer.read(def: Self.T.self, position: index)) ??
+      Self.min
+  }
+}

swift/Sources/FlatBuffers/Vectors/UnionFlatbufferVector.swift

@@ -0,0 +1,62 @@
+/*
+ * 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 Foundation
+
+public struct UnionFlatbufferVector {
+
+  private let bb: ByteBuffer
+  private let byteSize: Int
+  private let startPosition: Int32
+  public let count: Int
+
+  init(
+    bb: ByteBuffer,
+    startPosition: Int32,
+    count: Int,
+    byteSize: Int)
+  {
+    self.bb = bb
+    self.byteSize = byteSize
+    self.count = count
+    self.startPosition = startPosition
+  }
+
+  public var startIndex: Int {
+    0
+  }
+
+  public var endIndex: Int {
+    count
+  }
+
+  public var isEmpty: Bool {
+    count == 0
+  }
+
+  public subscript(
+    position: Int,
+    Type: FlatbuffersVectorInitializable
+      .Type) -> FlatbuffersVectorInitializable
+  {
+    guard position < count else {
+      fatalError(
+        "Trying to read element at index \(position) in a vector of size \(count)")
+    }
+    let index = startPosition &+ Int32(position &* byteSize)
+    return Type.readFrom(byteBuffer: bb, index: Int(index))
+  }
+}

swift/Sources/FlatBuffers/VeriferOptions.swift

@@ -41,8 +41,8 @@ public struct VerifierOptions {
     maxDepth: UOffset = 64,
     maxTableCount: UOffset = 1_000_000,
     maxApparentSize: UOffset = 1 << 31,
-    ignoreMissingNullTerminators: Bool = false
-  ) {
+    ignoreMissingNullTerminators: Bool = false)
+  {
     _maxDepth = maxDepth
     _maxTableCount = maxTableCount
     _maxApparentSize = maxApparentSize

swift/Sources/FlatBuffers/Verifiable.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 /// Verifiable is a protocol all swift flatbuffers object should conform to,
@@ -51,8 +51,8 @@ extension Verifiable {
   @discardableResult
   public static func verifyRange<T>(
     _ verifier: inout Verifier,
-    at position: Int, of type: T.Type
-  ) throws -> (start: Int, count: Int) {
+    at position: Int, of type: T.Type) throws -> (start: Int, count: Int)
+  {
     let len: UOffset = try verifier.getValue(at: position)
     let intLen = Int(len)
     let start = Int(clamping: (position &+ MemoryLayout<Int32>.size).magnitude)
@@ -74,8 +74,8 @@ extension Verifiable where Self: Scalar {
   public static func verify<T>(
     _ verifier: inout Verifier,
     at position: Int,
-    of type: T.Type
-  ) throws where T: Verifiable {
+    of type: T.Type) throws where T: Verifiable
+  {
     try verifier.inBuffer(position: position, of: type.self)
   }
 }
@@ -96,8 +96,8 @@ public enum ForwardOffset<U>: Verifiable where U: Verifiable {
   public static func verify<T>(
     _ verifier: inout Verifier,
     at position: Int,
-    of type: T.Type
-  ) throws where T: Verifiable {
+    of type: T.Type) throws where T: Verifiable
+  {
     let offset: UOffset = try verifier.getValue(at: position)
     let nextOffset = Int(clamping: (Int(offset) &+ position).magnitude)
     try U.verify(&verifier, at: nextOffset, of: U.self)
@@ -120,8 +120,8 @@ public enum Vector<U, S>: Verifiable where U: Verifiable, S: Verifiable {
   public static func verify<T>(
     _ verifier: inout Verifier,
     at position: Int,
-    of type: T.Type
-  ) throws where T: Verifiable {
+    of type: T.Type) throws where T: Verifiable
+  {
     /// checks if the next verification type S is equal to U of type forwardOffset
     /// This had to be done since I couldnt find a solution for duplicate call functions
     /// A fix will be appreciated
@@ -170,8 +170,8 @@ public enum UnionVector<S> where S: UnionEnum {
     fieldPosition: Int,
     unionKeyName: String,
     fieldName: String,
-    completion: @escaping Completion
-  ) throws {
+    completion: @escaping Completion) throws
+  {
     /// Get offset for union key vectors and offset vectors
     let keyOffset: UOffset = try verifier.getValue(at: keyPosition)
     let fieldOffset: UOffset = try verifier.getValue(at: fieldPosition)

swift/Sources/FlatBuffers/Verifier.swift

@@ -53,8 +53,8 @@ public struct Verifier {
   public init(
     buffer: inout ByteBuffer,
     options: VerifierOptions = .init(),
-    checkAlignment: Bool = true
-  ) throws {
+    checkAlignment: Bool = true) throws
+  {
     guard buffer.capacity < FlatBufferMaxSize else {
       throw FlatbuffersErrors.exceedsMaxSizeAllowed
     }
@@ -187,19 +187,19 @@ public struct Verifier {
     if offset > 0 {
       reportedOverflow =
         _int32Position
-        .subtractingReportingOverflow(offset.magnitude)
+          .subtractingReportingOverflow(offset.magnitude)
     } else {
       reportedOverflow =
         _int32Position
-        .addingReportingOverflow(offset.magnitude)
+          .addingReportingOverflow(offset.magnitude)
     }
 
     /// since `subtractingReportingOverflow` & `addingReportingOverflow` returns true,
     /// if there is overflow we return failure
     if reportedOverflow.overflow
       || reportedOverflow.partialValue
-        > _buffer
-        .capacity
+      > _buffer
+      .capacity
     {
       throw FlatbuffersErrors.signedOffsetOutOfBounds(
         offset: Int(offset),

swift/Sources/FlatBuffers/_InternalByteBuffer.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 /// `ByteBuffer` is the interface that stores the data for a `Flatbuffers` object
@@ -55,8 +55,8 @@ struct _InternalByteBuffer {
       capacity: Int,
       writerSize: Int,
       currentWritingIndex: Int,
-      alignment: Int
-    ) {
+      alignment: Int)
+    {
       let newData = UnsafeMutableRawPointer.allocate(
         byteCount: capacity,
         alignment: alignment)
@@ -144,18 +144,18 @@ struct _InternalByteBuffer {
   /// Adds a `ContiguousBytes` to buffer memory
   /// - Parameter value: bytes to copy
   #if swift(>=5.0) && !os(WASI)
-    @inline(__always)
-    @usableFromInline
-    mutating func push(bytes: ContiguousBytes) {
-      bytes.withUnsafeBytes { ptr in
-        ensureSpace(size: ptr.count)
-        memcpy(
-          _storage.memory.advanced(by: writerIndex &- ptr.count),
-          ptr.baseAddress!,
-          ptr.count)
-        _writerSize = _writerSize &+ ptr.count
-      }
+  @inline(__always)
+  @usableFromInline
+  mutating func push(bytes: ContiguousBytes) {
+    bytes.withUnsafeBytes { ptr in
+      ensureSpace(size: ptr.count)
+      memcpy(
+        _storage.memory.advanced(by: writerIndex &- ptr.count),
+        ptr.baseAddress!,
+        ptr.count)
+      _writerSize = _writerSize &+ ptr.count
     }
+  }
   #endif
 
   /// Adds an object of type NativeStruct into the buffer
@@ -200,7 +200,8 @@ struct _InternalByteBuffer {
   mutating func push(string str: String, len: Int) {
     ensureSpace(size: len)
     if str.utf8
-      .withContiguousStorageIfAvailable({ self.push(bytes: $0, len: len) }) != nil
+      .withContiguousStorageIfAvailable({ self.push(bytes: $0, len: len) }) !=
+      nil
     {
     } else {
       let utf8View = str.utf8
@@ -218,8 +219,8 @@ struct _InternalByteBuffer {
   @inline(__always)
   mutating func push(
     bytes: UnsafeBufferPointer<String.UTF8View.Element>,
-    len: Int
-  ) -> Bool {
+    len: Int) -> Bool
+  {
     memcpy(
       _storage.memory.advanced(by: writerIndex &- len),
       bytes.baseAddress!,
@@ -325,8 +326,8 @@ struct _InternalByteBuffer {
   @inline(__always)
   func withUnsafeBytes<T>(
     _ body: (UnsafeRawBufferPointer) throws
-      -> T
-  ) rethrows -> T {
+      -> T) rethrows -> T
+  {
     try body(
       UnsafeRawBufferPointer(
         start: _storage.memory,
@@ -337,8 +338,8 @@ struct _InternalByteBuffer {
   @inline(__always)
   func withUnsafeSlicedBytes<T>(
     _ body: (UnsafeRawBufferPointer) throws
-      -> T
-  ) rethrows -> T {
+      -> T) rethrows -> T
+  {
     try body(
       UnsafeRawBufferPointer(
         start: _storage.memory.advanced(by: writerIndex),
@@ -349,8 +350,8 @@ struct _InternalByteBuffer {
   @inline(__always)
   func withUnsafeRawPointer<T>(
     _ body: (UnsafeMutableRawPointer) throws
-      -> T
-  ) rethrows -> T {
+      -> T) rethrows -> T
+  {
     try body(_storage.memory)
   }
 
@@ -358,8 +359,8 @@ struct _InternalByteBuffer {
   @inline(__always)
   func readWithUnsafeRawPointer<T>(
     position: Int,
-    _ body: (UnsafeRawPointer) throws -> T
-  ) rethrows -> T {
+    _ body: (UnsafeRawPointer) throws -> T) rethrows -> T
+  {
     try body(_storage.memory.advanced(by: position))
   }
 }

swift/Sources/FlexBuffers/ByteBuffer.swift

@@ -29,8 +29,8 @@ public struct ByteBuffer {
     @usableFromInline
     enum Blob {
       #if !os(WASI)
-        case data(Data)
-        case bytes(ContiguousBytes)
+      case data(Data)
+      case bytes(ContiguousBytes)
       #endif
 
       case byteBuffer(_InternalByteBuffer)
@@ -96,16 +96,16 @@ public struct ByteBuffer {
     @inline(__always)
     func withUnsafeBytes<T>(
       _ body: (UnsafeRawBufferPointer) throws
-        -> T
-    ) rethrows -> T {
+        -> T) rethrows -> T
+    {
       switch retainedBlob {
       case .byteBuffer(let byteBuffer):
         return try byteBuffer.withUnsafeBytes(body)
       #if !os(WASI)
-        case .data(let data):
-          return try data.withUnsafeBytes(body)
-        case .bytes(let contiguousBytes):
-          return try contiguousBytes.withUnsafeBytes(body)
+      case .data(let data):
+        return try data.withUnsafeBytes(body)
+      case .bytes(let contiguousBytes):
+        return try contiguousBytes.withUnsafeBytes(body)
       #endif
       case .array(let array):
         return try array.withUnsafeBytes(body)
@@ -118,21 +118,21 @@ public struct ByteBuffer {
     @inline(__always)
     func withUnsafeRawPointer<T>(
       _ body: (UnsafeMutableRawPointer) throws
-        -> T
-    ) rethrows -> T {
+        -> T) rethrows -> T
+    {
       switch retainedBlob {
       case .byteBuffer(let byteBuffer):
         return try byteBuffer.withUnsafeRawPointer(body)
       #if !os(WASI)
-        case .data(let data):
-          return
-            try data
+      case .data(let data):
+        return
+          try data
             .withUnsafeBytes {
               try body(UnsafeMutableRawPointer(mutating: $0.baseAddress!))
             }
-        case .bytes(let contiguousBytes):
-          return
-            try contiguousBytes
+      case .bytes(let contiguousBytes):
+        return
+          try contiguousBytes
             .withUnsafeBytes {
               try body(UnsafeMutableRawPointer(mutating: $0.baseAddress!))
             }
@@ -140,9 +140,9 @@ public struct ByteBuffer {
       case .array(let array):
         return
           try array
-          .withUnsafeBytes {
-            try body(UnsafeMutableRawPointer(mutating: $0.baseAddress!))
-          }
+            .withUnsafeBytes {
+              try body(UnsafeMutableRawPointer(mutating: $0.baseAddress!))
+            }
       case .pointer(let ptr):
         return try body(ptr)
       }
@@ -152,20 +152,20 @@ public struct ByteBuffer {
     @inline(__always)
     func readWithUnsafeRawPointer<T>(
       position: Int,
-      _ body: (UnsafeRawPointer) throws -> T
-    ) rethrows -> T {
+      _ body: (UnsafeRawPointer) throws -> T) rethrows -> T
+    {
       switch retainedBlob {
       case .byteBuffer(let byteBuffer):
         return try byteBuffer.readWithUnsafeRawPointer(position: position, body)
       #if !os(WASI)
-        case .data(let data):
-          return try data.withUnsafeBytes {
-            try body($0.baseAddress!.advanced(by: position))
-          }
-        case .bytes(let contiguousBytes):
-          return try contiguousBytes.withUnsafeBytes {
-            try body($0.baseAddress!.advanced(by: position))
-          }
+      case .data(let data):
+        return try data.withUnsafeBytes {
+          try body($0.baseAddress!.advanced(by: position))
+        }
+      case .bytes(let contiguousBytes):
+        return try contiguousBytes.withUnsafeBytes {
+          try body($0.baseAddress!.advanced(by: position))
+        }
       #endif
       case .array(let array):
         return try array.withUnsafeBytes {
@@ -207,8 +207,8 @@ public struct ByteBuffer {
   @inline(__always)
   public init(
     copyingMemoryBound memory: UnsafeRawPointer,
-    capacity: Int
-  ) {
+    capacity: Int)
+  {
     _storage = Storage(count: capacity)
     _storage.copy(from: memory, count: capacity)
     _readerIndex = capacity
@@ -226,29 +226,29 @@ public struct ByteBuffer {
   }
 
   #if !os(WASI)
-    /// Constructor that creates a Flatbuffer from the Swift Data type object
-    /// - Parameter
-    ///   - data: Swift data Object
-    @inline(__always)
-    public init(data: Data) {
-      _storage = Storage(blob: .data(data), capacity: data.count)
-      _readerIndex = data.count
-      capacity = data.count
-    }
+  /// Constructor that creates a Flatbuffer from the Swift Data type object
+  /// - Parameter
+  ///   - data: Swift data Object
+  @inline(__always)
+  public init(data: Data) {
+    _storage = Storage(blob: .data(data), capacity: data.count)
+    _readerIndex = data.count
+    capacity = data.count
+  }
 
-    /// Constructor that creates a Flatbuffer object from a ContiguousBytes
-    /// - Parameters:
-    ///   - contiguousBytes: Binary stripe to use as the buffer
-    ///   - count: amount of readable bytes
-    @inline(__always)
-    public init<Bytes: ContiguousBytes>(
-      contiguousBytes: Bytes,
-      count: Int
-    ) {
-      _storage = Storage(blob: .bytes(contiguousBytes), capacity: count)
-      _readerIndex = count
-      capacity = count
-    }
+  /// Constructor that creates a Flatbuffer object from a ContiguousBytes
+  /// - Parameters:
+  ///   - contiguousBytes: Binary stripe to use as the buffer
+  ///   - count: amount of readable bytes
+  @inline(__always)
+  public init<Bytes: ContiguousBytes>(
+    contiguousBytes: Bytes,
+    count: Int)
+  {
+    _storage = Storage(blob: .bytes(contiguousBytes), capacity: count)
+    _readerIndex = count
+    capacity = count
+  }
   #endif
 
   /// Constructor that creates a Flatbuffer from unsafe memory region without copying
@@ -260,8 +260,8 @@ public struct ByteBuffer {
   @inline(__always)
   public init(
     assumingMemoryBound memory: UnsafeMutableRawPointer,
-    capacity: Int
-  ) {
+    capacity: Int)
+  {
     _storage = Storage(
       blob: .pointer(memory),
       capacity: capacity)
@@ -278,8 +278,8 @@ public struct ByteBuffer {
   init(
     blob: Storage.Blob,
     count: Int,
-    removing removeBytes: Int
-  ) {
+    removing removeBytes: Int)
+  {
     _storage = Storage(blob: blob, capacity: count)
     _readerIndex = removeBytes
     capacity = count
@@ -371,8 +371,8 @@ public struct ByteBuffer {
     t3: T3.Type,
     t4: T4.Type,
     position: Int,
-    byteWidth: UInt8
-  ) -> T {
+    byteWidth: UInt8) -> T
+  {
     switch byteWidth {
     case 1:
       numericCast(read(def: T1.self, position: position))
@@ -392,8 +392,8 @@ public struct ByteBuffer {
   @inline(__always)
   public func readSlice<T>(
     index: Int,
-    count: Int
-  ) -> [T] {
+    count: Int) -> [T]
+  {
     assert(
       index + count <= capacity,
       "Reading out of bounds is illegal")
@@ -410,8 +410,8 @@ public struct ByteBuffer {
   public func readString(
     at index: Int,
     count: Int,
-    type: String.Encoding
-  ) -> String? {
+    type: String.Encoding) -> String?
+  {
     assert(
       index + count <= capacity,
       "Reading out of bounds is illegal")
@@ -432,8 +432,8 @@ public struct ByteBuffer {
   @inline(__always)
   public func readString(
     at index: Int,
-    count: Int
-  ) -> String? {
+    count: Int) -> String?
+  {
     assert(
       index + count <= capacity,
       "Reading out of bounds is illegal")
@@ -451,8 +451,8 @@ public struct ByteBuffer {
   public func withUnsafePointerToSlice<T>(
     index: Int,
     count: Int,
-    body: (UnsafeRawBufferPointer) throws -> T
-  ) rethrows -> T {
+    body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T
+  {
     assert(
       index + count <= capacity,
       "Reading out of bounds is illegal")
@@ -465,8 +465,8 @@ public struct ByteBuffer {
   @inline(__always)
   public func withUnsafeBytes<T>(
     body: (UnsafeRawBufferPointer) throws
-      -> T
-  ) rethrows -> T {
+      -> T) rethrows -> T
+  {
     try _storage.withUnsafeBytes(body)
   }
 
@@ -474,8 +474,8 @@ public struct ByteBuffer {
   @inline(__always)
   func withUnsafeMutableRawPointer<T>(
     body: (UnsafeMutableRawPointer) throws
-      -> T
-  ) rethrows -> T {
+      -> T) rethrows -> T
+  {
     try _storage.withUnsafeRawPointer(body)
   }
 
@@ -483,8 +483,8 @@ public struct ByteBuffer {
   @inline(__always)
   func readWithUnsafeRawPointer<T>(
     position: Int,
-    _ body: (UnsafeRawPointer) throws -> T
-  ) rethrows -> T {
+    _ body: (UnsafeRawPointer) throws -> T) rethrows -> T
+  {
     try _storage.readWithUnsafeRawPointer(position: position, body)
   }
 }

swift/Sources/FlexBuffers/FlexBufferType.swift

@@ -46,8 +46,7 @@ public enum FlexBufferType: UInt64 {
   @available(
     *,
     deprecated,
-    message: "use FBT_VECTOR or FBT_VECTOR_KEY instead."
-  )
+    message: "use FBT_VECTOR or FBT_VECTOR_KEY instead.")
   case vectorString = 15
 
   /// Typed tuples (no type table, no size field).

swift/Sources/FlexBuffers/Reader/FixedTypedVector.swift

@@ -31,8 +31,8 @@ public struct FixedTypedVector: FlexBufferVector {
     offset: Int,
     byteWidth: UInt8,
     type: FlexBufferType,
-    count: Int
-  ) {
+    count: Int)
+  {
     self.byteBuffer = byteBuffer
     self.offset = offset
     self.byteWidth = byteWidth

swift/Sources/FlexBuffers/Reader/FlexBufferVector.swift

@@ -39,14 +39,13 @@ public protocol FlexBufferContiguousBytes {
   var count: Int { get }
 
   func withUnsafeRawBufferPointer<Result>(
-    _ body: (UnsafeRawBufferPointer) throws -> Result
-  ) rethrows -> Result
+    _ body: (UnsafeRawBufferPointer) throws -> Result) rethrows -> Result
 }
 
 extension FlexBufferContiguousBytes {
   public func withUnsafeRawBufferPointer<Result>(
-    _ body: (UnsafeRawBufferPointer) throws -> Result
-  ) rethrows -> Result {
+    _ body: (UnsafeRawBufferPointer) throws -> Result) rethrows -> Result
+  {
     try byteBuffer.withUnsafePointerToSlice(
       index: offset,
       count: count,

swift/Sources/FlexBuffers/Reader/Reference.swift

@@ -58,8 +58,8 @@ public struct Reference {
     byteBuffer: ByteBuffer,
     offset: Int,
     parentWidth: UInt8,
-    packedType: UInt8
-  ) {
+    packedType: UInt8)
+  {
     guard let type = FlexBufferType(rawValue: UInt64(packedType >> 2)) else {
       return nil
     }
@@ -76,8 +76,8 @@ public struct Reference {
     offset: Int,
     parentWidth: UInt8,
     byteWidth: UInt8,
-    type: FlexBufferType
-  ) {
+    type: FlexBufferType)
+  {
     self.byteBuffer = byteBuffer
     self.offset = offset
     self.parentWidth = parentWidth
@@ -241,8 +241,7 @@ public struct Reference {
   @inline(__always)
   public func withUnsafeRawPointer<Result>(
     _ completion: (UnsafeRawPointer) throws
-      -> Result
-  )
+      -> Result)
     rethrows -> Result?
   {
     return try byteBuffer.readWithUnsafeRawPointer(

swift/Sources/FlexBuffers/Reader/TypedVector.swift

@@ -30,8 +30,8 @@ public struct TypedVector: FlexBufferVector {
     byteBuffer: ByteBuffer,
     offset: Int,
     byteWidth: UInt8,
-    type: FlexBufferType
-  ) {
+    type: FlexBufferType)
+  {
     self.byteBuffer = byteBuffer
     self.offset = offset
     self.byteWidth = byteWidth
@@ -54,8 +54,8 @@ public struct TypedVector: FlexBufferVector {
   static func mapKeys(
     byteBuffer: ByteBuffer,
     offset: Int,
-    byteWidth: UInt8
-  ) -> TypedVector {
+    byteWidth: UInt8) -> TypedVector
+  {
     let prefixedFields = 3
     let keysOffset = offset &- (numericCast(byteWidth) &* prefixedFields)
 
@@ -88,8 +88,8 @@ extension TypedVector {
       byteWidth)
 
     return byteBuffer.readWithUnsafeRawPointer(
-      position: indirectoffset
-    ) { bufPointer in
+      position: indirectoffset)
+    { bufPointer in
       target.withCString { strPointer in
         Int(strcmp(bufPointer, strPointer))
       }

swift/Sources/FlexBuffers/Utils/Constants.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 extension UInt64 {

swift/Sources/FlexBuffers/Utils/Value.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 public struct Value: Equatable {

swift/Sources/FlexBuffers/Utils/functions.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 @inline(__always)
@@ -128,13 +128,14 @@ func toFixedTypedVectorElementType(type: FlexBufferType)
     type.rawValue
       &- FlexBufferType.vectorInt2
       .rawValue)
-  let len: Int = numericCast(fixedType.dividedReportingOverflow(by: 3).partialValue &+ 2)
+  let len: Int = numericCast(
+    fixedType.dividedReportingOverflow(by: 3)
+      .partialValue &+ 2)
   return (
     FlexBufferType(
       rawValue: (fixedType.quotientAndRemainder(dividingBy: 3).remainder)
         &+ FlexBufferType.int.rawValue),
-    len
-  )
+    len)
 }
 
 // MARK: - Reader functions
@@ -142,8 +143,8 @@ func toFixedTypedVectorElementType(type: FlexBufferType)
 @inline(__always)
 func binarySearch(
   vector: TypedVector,
-  target: String
-) -> Int? {
+  target: String) -> Int?
+{
   var left = 0
   var right = vector.count
 

swift/Sources/FlexBuffers/Writer/FlexBuffersWriter.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 private let twentyFourBytes: Int = 24
@@ -74,21 +74,21 @@ public struct FlexBuffersWriter {
   }
 
   #if !os(WASI)
-    /// Data representation of the buffer
-    ///
-    /// Should only be used after ``finish(offset:addPrefix:)`` is called
-    public var data: Data {
-      assert(finished, "Data shouldn't be called before finish()")
-      return _bb.withUnsafeSlicedBytes { ptr in
-        var data = Data()
-        data.append(
-          ptr.baseAddress!.bindMemory(
-            to: UInt8.self,
-            capacity: ptr.count),
-          count: ptr.count)
-        return data
-      }
+  /// Data representation of the buffer
+  ///
+  /// Should only be used after ``finish(offset:addPrefix:)`` is called
+  public var data: Data {
+    assert(finished, "Data shouldn't be called before finish()")
+    return _bb.withUnsafeSlicedBytes { ptr in
+      var data = Data()
+      data.append(
+        ptr.baseAddress!.bindMemory(
+          to: UInt8.self,
+          capacity: ptr.count),
+        count: ptr.count)
+      return data
     }
+  }
   #endif
 
   /// Resets the internal state. Automatically called before building a new flexbuffer.
@@ -139,8 +139,8 @@ public struct FlexBuffersWriter {
   public mutating func endVector(
     start: Int,
     typed: Bool = false,
-    fixed: Bool = false
-  ) -> UInt64 {
+    fixed: Bool = false) -> UInt64
+  {
     let vec = createVector(
       start: start,
       count: stack.count &- start,
@@ -162,7 +162,8 @@ public struct FlexBuffersWriter {
   @discardableResult
   @inline(__always)
   public mutating func create<T>(vector: [T], key: borrowing String) -> Int
-  where T: Scalar {
+    where T: Scalar
+  {
     add(key: key)
     return create(vector: vector, fixed: false)
   }
@@ -178,8 +179,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func createFixed<T>(
     vector: [T],
-    key: borrowing String
-  ) -> Int where T: Scalar {
+    key: borrowing String) -> Int where T: Scalar
+  {
     assert(vector.count >= 2 && vector.count <= 4)
     add(key: key)
     return create(vector: vector, fixed: true)
@@ -301,8 +302,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func add(
     uint64 value: borrowing UInt64,
-    key: borrowing String
-  ) {
+    key: borrowing String)
+  {
     add(key: key)
     add(uint64: value)
   }
@@ -315,8 +316,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func indirect(
     uint64 val: borrowing UInt64,
-    key: borrowing String
-  ) {
+    key: borrowing String)
+  {
     add(key: key)
     indirect(uint64: val)
   }
@@ -324,8 +325,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func indirect(
     uint val: borrowing UInt,
-    key: borrowing String
-  ) {
+    key: borrowing String)
+  {
     add(key: key)
     indirect(uint64: numericCast(val))
   }
@@ -384,8 +385,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func add(
     int64 value: borrowing Int64,
-    key: borrowing String
-  ) {
+    key: borrowing String)
+  {
     add(key: key)
     add(int64: value)
   }
@@ -398,8 +399,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func indirect(
     int64 val: borrowing Int64,
-    key: borrowing String
-  ) {
+    key: borrowing String)
+  {
     add(key: key)
     indirect(int64: val)
   }
@@ -407,8 +408,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func indirect(
     int val: borrowing Int,
-    key: borrowing String
-  ) {
+    key: borrowing String)
+  {
     add(key: key)
     indirect(int64: numericCast(val))
   }
@@ -423,8 +424,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func add(
     float32 value: borrowing Float32,
-    key: borrowing String
-  ) {
+    key: borrowing String)
+  {
     add(key: key)
     add(float32: value)
   }
@@ -437,8 +438,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func indirect(
     float32 val: borrowing Float32,
-    key: borrowing String
-  ) {
+    key: borrowing String)
+  {
     add(key: key)
     indirect(float32: val)
   }
@@ -451,8 +452,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func add(
     double value: borrowing Double,
-    key: borrowing String
-  ) {
+    key: borrowing String)
+  {
     add(key: key)
     add(double: value)
   }
@@ -465,8 +466,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func indirect(
     double val: borrowing Double,
-    key: borrowing String
-  ) {
+    key: borrowing String)
+  {
     add(key: key)
     indirect(double: val)
   }
@@ -488,8 +489,8 @@ public struct FlexBuffersWriter {
   @inline(__always)
   public mutating func add<T>(
     blob: borrowing T,
-    length l: Int
-  ) -> UInt where T: ContiguousBytes {
+    length l: Int) -> UInt where T: ContiguousBytes
+  {
     storeBlob(blob, len: l, type: .blob)
   }
 
@@ -498,8 +499,8 @@ public struct FlexBuffersWriter {
   public mutating func add<T>(
     blob: borrowing T,
     key: borrowing String,
-    length l: Int
-  ) -> UInt where T: ContiguousBytes {
+    length l: Int) -> UInt where T: ContiguousBytes
+  {
     add(key: key)
     return storeBlob(blob, len: l, type: .blob)
   }
@@ -540,8 +541,8 @@ public struct FlexBuffersWriter {
   mutating func pushIndirect<T>(
     value: T,
     type: FlexBufferType,
-    bitWidth: BitWidth
-  ) {
+    bitWidth: BitWidth)
+  {
     let byteWidth = align(width: bitWidth)
     let iloc = writerIndex
     _bb.ensureSpace(size: byteWidth)
@@ -618,8 +619,8 @@ public struct FlexBuffersWriter {
   mutating func storeBlob<T>(
     _ bytes: T,
     len: Int,
-    type: FlexBufferType
-  ) -> UInt where T: ContiguousBytes {
+    type: FlexBufferType) -> UInt where T: ContiguousBytes
+  {
     return bytes.withUnsafeBytes {
       storeBlob(pointer: $0.baseAddress!, len: len, type: type)
     }
@@ -631,8 +632,8 @@ public struct FlexBuffersWriter {
     pointer: borrowing UnsafeRawPointer,
     len: Int,
     trailing: Int = 0,
-    type: FlexBufferType
-  ) -> UInt {
+    type: FlexBufferType) -> UInt
+  {
     _bb.ensureSpace(size: len &+ trailing)
     let bitWidth = widthU(numericCast(len))
 
@@ -655,7 +656,8 @@ public struct FlexBuffersWriter {
   @discardableResult
   @usableFromInline
   mutating func create<T>(vector: [T], fixed: Bool) -> Int
-  where T: Scalar {
+    where T: Scalar
+  {
     let length: UInt64 = numericCast(vector.count)
     let vectorType = getScalarType(type: T.self)
     let byteWidth = MemoryLayout<T>.size
@@ -691,8 +693,8 @@ public struct FlexBuffersWriter {
     step: Int,
     typed: Bool,
     fixed: Bool,
-    keys: Value? = nil
-  ) -> Value {
+    keys: Value? = nil) -> Value
+  {
     assert(
       !fixed || typed,
       "Typed false and fixed true is a combination not supported currently")
@@ -857,8 +859,8 @@ extension FlexBuffersWriter {
   @discardableResult
   public mutating func vector(
     key: String,
-    _ closure: FlexBuffersWriterBuilder
-  ) -> UInt64 {
+    _ closure: FlexBuffersWriterBuilder) -> UInt64
+  {
     let start = startVector(key: key)
     closure(&self)
     return endVector(start: start)
@@ -879,8 +881,8 @@ extension FlexBuffersWriter {
   @discardableResult
   public mutating func map(
     key: String,
-    _ closure: FlexBuffersWriterBuilder
-  ) -> UInt64 {
+    _ closure: FlexBuffersWriterBuilder) -> UInt64
+  {
     let start = startMap(key: key)
     closure(&self)
     return endMap(start: start)

swift/Sources/FlexBuffers/_InternalByteBuffer.swift

@@ -17,7 +17,7 @@
 import Foundation
 
 #if canImport(Common)
-  import Common
+import Common
 #endif
 
 /// `ByteBuffer` is the interface that stores the data for a `Flatbuffers` object
@@ -55,8 +55,8 @@ struct _InternalByteBuffer {
     func reallocate(
       capacity: Int,
       writerSize: Int,
-      alignment: Int
-    ) {
+      alignment: Int)
+    {
       let newData = UnsafeMutableRawPointer.allocate(
         byteCount: capacity,
         alignment: alignment)
@@ -135,18 +135,17 @@ struct _InternalByteBuffer {
     _storage.reallocate(
       capacity: capacity,
       writerSize: writerIndex,
-      alignment: alignment
-    )
+      alignment: alignment)
   }
 
   @inline(__always)
   mutating func addPadding(bytes: Int) {
     writerIndex =
       writerIndex
-      &+ numericCast(
-        padding(
-          bufSize: numericCast(writerIndex),
-          elementSize: numericCast(bytes)))
+        &+ numericCast(
+          padding(
+            bufSize: numericCast(writerIndex),
+            elementSize: numericCast(bytes)))
     ensureSpace(size: writerIndex)
   }
 
@@ -174,8 +173,8 @@ struct _InternalByteBuffer {
   @inline(__always)
   func withUnsafeBytes<T>(
     _ body: (UnsafeRawBufferPointer) throws
-      -> T
-  ) rethrows -> T {
+      -> T) rethrows -> T
+  {
     try body(
       UnsafeRawBufferPointer(
         start: _storage.memory,
@@ -186,8 +185,8 @@ struct _InternalByteBuffer {
   @inline(__always)
   func withUnsafeSlicedBytes<T>(
     _ body: (UnsafeRawBufferPointer) throws
-      -> T
-  ) rethrows -> T {
+      -> T) rethrows -> T
+  {
     try body(
       UnsafeRawBufferPointer(
         start: _storage.memory,
@@ -198,8 +197,8 @@ struct _InternalByteBuffer {
   @inline(__always)
   func withUnsafeRawPointer<T>(
     _ body: (UnsafeMutableRawPointer) throws
-      -> T
-  ) rethrows -> T {
+      -> T) rethrows -> T
+  {
     try body(_storage.memory)
   }
 
@@ -207,8 +206,8 @@ struct _InternalByteBuffer {
   @inline(__always)
   func readWithUnsafeRawPointer<T>(
     position: Int,
-    _ body: (UnsafeRawPointer) throws -> T
-  ) rethrows -> T {
+    _ body: (UnsafeRawPointer) throws -> T) rethrows -> T
+  {
     try body(_storage.memory.advanced(by: position))
   }
 }

tests/swift/Tests/Flatbuffers/FlatBuffersMonsterWriterTests.swift

@@ -50,14 +50,14 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
   func testReadFromOtherLanguages() {
     let path = {
       #if os(macOS)
-        // Gets the current path of this test file then
-        // strips out the nested directories.
-        let filePath = URL(filePath: #file)
-          .deletingLastPathComponent()
-        return filePath.absoluteString
+      // Gets the current path of this test file then
+      // strips out the nested directories.
+      let filePath = URL(filePath: #file)
+        .deletingLastPathComponent()
+      return filePath.absoluteString
       #else
-        return FileManager.default.currentDirectoryPath
-          .appending("/tests/swift/Tests/Flatbuffers")
+      return FileManager.default.currentDirectoryPath
+        .appending("/tests/swift/Tests/Flatbuffers")
       #endif
     }()
 
@@ -230,15 +230,15 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     // swiftformat:enable all
     let unpacked =
       array
-      .withUnsafeMutableBytes { memory -> MyGame_Example_MonsterT in
-        var bytes = ByteBuffer(
-          assumingMemoryBound: memory.baseAddress!,
-          capacity: memory.count)
-        var monster: Monster = getRoot(byteBuffer: &bytes)
-        readFlatbufferMonster(monster: &monster)
-        let unpacked = monster.unpack()
-        return unpacked
-      }
+        .withUnsafeMutableBytes { memory -> MyGame_Example_MonsterT in
+          var bytes = ByteBuffer(
+            assumingMemoryBound: memory.baseAddress!,
+            capacity: memory.count)
+          var monster: Monster = getRoot(byteBuffer: &bytes)
+          readFlatbufferMonster(monster: &monster)
+          let unpacked = monster.unpack()
+          return unpacked
+        }
     readObjectApi(monster: unpacked)
   }
 
@@ -257,10 +257,10 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     let monster: Monster = getRoot(byteBuffer: &buffer)
     let values = monster.testarrayofbools
 
-    XCTAssertEqual(boolArray, values)
+    XCTAssertEqual(boolArray.count, values.count)
 
-    for i in 0..<monster.testarrayofboolsCount {
-      XCTAssertEqual(boolArray[Int(i)], monster.testarrayofbools(at: i))
+    for (index, bool) in monster.testarrayofbools.enumerated() {
+      XCTAssertEqual(bool, boolArray[index])
     }
   }
 
@@ -453,9 +453,9 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
 
     let monster: Monster = getRoot(byteBuffer: &fb)
     XCTAssertFalse(monster.mutate(mana: 10))
-    XCTAssertEqual(monster.testarrayoftables(at: 0)?.name, "Barney")
-    XCTAssertEqual(monster.testarrayoftables(at: 1)?.name, "Frodo")
-    XCTAssertEqual(monster.testarrayoftables(at: 2)?.name, "Wilma")
+    XCTAssertEqual(monster.testarrayoftables[0].name, "Barney")
+    XCTAssertEqual(monster.testarrayoftables[1].name, "Frodo")
+    XCTAssertEqual(monster.testarrayoftables[2].name, "Wilma")
 
     // Example of searching for a table by the key
     XCTAssertNotNil(monster.testarrayoftablesBy(key: "Frodo"))
@@ -470,8 +470,8 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     XCTAssertEqual(monster.mutate(inventory: 4, at: 3), true)
     XCTAssertEqual(monster.mutate(inventory: 5, at: 4), true)
 
-    for i in 0..<monster.inventoryCount {
-      XCTAssertEqual(monster.inventory(at: i), Byte(i + 1))
+    for i in 0..<monster.inventory.count {
+      XCTAssertEqual(monster.inventory[i], Byte(i + 1))
     }
 
     XCTAssertEqual(monster.mutate(inventory: 0, at: 0), true)
@@ -489,6 +489,13 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     XCTAssertTrue(vec?.mutate(x: 1) ?? false)
     XCTAssertEqual(vec?.x, 1)
     XCTAssertTrue(vec?.mutate(test1: 3) ?? false)
+
+    let mutableTest4 = monster.mutableTest4
+    let orignalValues = mutableTest4[0].a
+    XCTAssertEqual(mutableTest4[0].mutate(a: 100), true)
+    XCTAssertNotEqual(monster.test4[0].a, orignalValues)
+    XCTAssertEqual(monster.test4[0].a, 100)
+    XCTAssertEqual(mutableTest4[0].mutate(a: orignalValues), true)
   }
 
   func readFlatbufferMonster(monster: inout MyGame_Example_Monster) {
@@ -511,14 +518,14 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     XCTAssertEqual(monster.mutate(mana: 10), false)
 
     XCTAssertEqual(monster.mana, 150)
-    XCTAssertEqual(monster.inventoryCount, 5)
+    XCTAssertEqual(monster.inventory.count, 5)
     var sum: Byte = 0
-    for i in 0...monster.inventoryCount {
-      sum += monster.inventory(at: i)
+    for inventory in monster.inventory {
+      sum += inventory
     }
     XCTAssertEqual(sum, 10)
 
-    monster.withUnsafePointerToInventory { ptr in
+    monster.withUnsafePointerToInventory { ptr, count in
       var sum: UInt8 = 0
       for pointee in ptr.startIndex..<ptr.endIndex {
         sum += ptr[pointee]
@@ -526,57 +533,49 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
       XCTAssertEqual(sum, 10)
     }
 
-    XCTAssertEqual(monster.test4Count, 2)
+    XCTAssertEqual(monster.test4.count, 2)
 
-    let test0 = monster.test4(at: 0)
-    let test1 = monster.test4(at: 1)
+    let test4 = monster.test4
     var sum0 = 0
-    var sum1 = 0
-    if let a = test0?.a, let b = test0?.b {
-      sum0 = Int(a) + Int(b)
+    for test0 in test4 {
+      sum0 += Int(test0.a) + Int(test0.b)
     }
-    if let a = test1?.a, let b = test1?.b {
-      sum1 = Int(a) + Int(b)
-    }
-    XCTAssertEqual(sum0 + sum1, 100)
+    XCTAssertEqual(sum0, 100)
 
-    monster.withUnsafePointerToTest4 { ptr in
+    monster.withUnsafePointerToTest4 { ptr, count in
       guard let ptr = ptr.baseAddress else { return }
 
       let bindedMemory: UnsafeBufferPointer<MyGame_Example_Test> =
         UnsafeBufferPointer(
           start: ptr.bindMemory(
             to: MyGame_Example_Test.self,
-            capacity: Int(monster.test4Count)),
-          count: Int(monster.test4Count))
+            capacity: count),
+          count: count)
       var pointerSum = 0
       for pointee in bindedMemory.startIndex..<bindedMemory.endIndex {
-        pointerSum += Int(bindedMemory[pointee].a) + Int(bindedMemory[pointee].b)
+        pointerSum += Int(bindedMemory[pointee].a) +
+          Int(bindedMemory[pointee].b)
       }
       XCTAssertEqual(pointerSum, 100)
     }
 
-    let mutableTest0 = monster.mutableTest4(at: 0)
-    let mutableTest1 = monster.mutableTest4(at: 1)
+    let mutableTest4 = monster.mutableTest4
     var sum2 = 0
-    var sum3 = 0
-    if let a = mutableTest0?.a, let b = mutableTest0?.b {
-      sum2 = Int(a) + Int(b)
+    for test0 in mutableTest4 {
+      sum2 += Int(test0.a) + Int(test0.b)
     }
-    if let a = mutableTest1?.a, let b = mutableTest1?.b {
-      sum3 = Int(a) + Int(b)
-    }
-    XCTAssertEqual(sum2 + sum3, 100)
+    XCTAssertEqual(sum2, 100)
 
-    XCTAssertEqual(monster.testarrayofstringCount, 2)
-    XCTAssertEqual(monster.testarrayofstring(at: 0), "test1")
-    XCTAssertEqual(monster.testarrayofstring(at: 1), "test2")
+    let stringArray = monster.testarrayofstring
+    XCTAssertEqual(stringArray.count, 2)
+    XCTAssertEqual(stringArray[0], "test1")
+    XCTAssertEqual(stringArray[1], "test2")
     XCTAssertEqual(monster.testbool, true)
 
     let array = monster.nameSegmentArray
     XCTAssertEqual(String(bytes: array ?? [], encoding: .utf8), "MyMonster")
 
-    if 0 == monster.testarrayofboolsCount {
+    if 0 == monster.testarrayofbools.count {
       XCTAssertEqual(monster.testarrayofbools.isEmpty, true)
     } else {
       XCTAssertEqual(monster.testarrayofbools.isEmpty, false)
@@ -611,17 +610,11 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     }
     XCTAssertEqual(sum, 10)
     XCTAssertEqual(monster.test4.count, 2)
-    let test0 = monster.test4[0]
-    let test1 = monster.test4[1]
     var sum0 = 0
-    var sum1 = 0
-    if let a = test0?.a, let b = test0?.b {
-      sum0 = Int(a) + Int(b)
+    for test in monster.test4 {
+      sum0 += Int(test.a) + Int(test.b)
     }
-    if let a = test1?.a, let b = test1?.b {
-      sum1 = Int(a) + Int(b)
-    }
-    XCTAssertEqual(sum0 + sum1, 100)
+    XCTAssertEqual(sum0, 100)
     XCTAssertEqual(monster.testbool, true)
   }
 
@@ -674,8 +667,11 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     let monster: Monster = getRoot(byteBuffer: &buffer)
     let values = monster.inventory
 
-    monster.withUnsafePointerToInventory {
-      XCTAssertEqual(Array($0), values)
+    monster.withUnsafePointerToInventory { ptr, count in
+      let array = Array(ptr)
+      for (index, value) in values.enumerated() {
+        XCTAssertEqual(array[index], value)
+      }
     }
   }
 }

tests/swift/Tests/Flatbuffers/FlatBuffersTests.swift

@@ -192,8 +192,8 @@ class Country {
     builder: inout FlatBufferBuilder,
     name: String,
     log: Int32,
-    lan: Int32
-  ) -> Offset {
+    lan: Int32) -> Offset
+  {
     createCountry(
       builder: &builder,
       offset: builder.create(string: name),
@@ -206,8 +206,8 @@ class Country {
     builder: inout FlatBufferBuilder,
     offset: Offset,
     log: Int32,
-    lan: Int32
-  ) -> Offset {
+    lan: Int32) -> Offset
+  {
     let _start = builder.startTable(with: 3)
     Country.add(builder: &builder, lng: log)
     Country.add(builder: &builder, lan: lan)
@@ -218,8 +218,8 @@ class Country {
   @inlinable
   static func end(
     builder: inout FlatBufferBuilder,
-    startOffset: UOffset
-  ) -> Offset {
+    startOffset: UOffset) -> Offset
+  {
     Offset(offset: builder.endTable(at: startOffset))
   }
 

tests/swift/Tests/Flatbuffers/FlatBuffersUnionTests.swift

@@ -119,8 +119,9 @@ final class FlatBuffersUnionTests: XCTestCase {
     let monster = ColorsNameSpace.Monster
       .getRootAsMonster(bb: builder.sizedBuffer)
     XCTAssertEqual(monster.colorsCount, 2)
-    XCTAssertEqual(monster.colors(at: 0), .blue)
-    XCTAssertEqual(monster.colors(at: 1), .green)
+    let colors = monster.colors
+    XCTAssertEqual(colors[0], .blue)
+    XCTAssertEqual(colors[1], .green)
   }
 
   func testUnionVector() {
@@ -148,11 +149,12 @@ final class FlatBuffersUnionTests: XCTestCase {
 
     var buffer = fb.sizedBuffer
     var movie: Movie = getRoot(byteBuffer: &buffer)
-    XCTAssertEqual(movie.charactersTypeCount, Int32(characterType.count))
-    XCTAssertEqual(movie.charactersCount, Int32(characters.count))
+    XCTAssertEqual(movie.charactersType.count, characterType.count)
+    XCTAssertEqual(movie.characters.count, characters.count)
 
-    for i in 0..<movie.charactersTypeCount {
-      XCTAssertEqual(movie.charactersType(at: i), characterType[Int(i)])
+    let bufferCharactersType = movie.charactersType
+    for (index, element) in bufferCharactersType.enumerated() {
+      XCTAssertEqual(element, characterType[index])
     }
 
     XCTAssertEqual(
@@ -167,8 +169,7 @@ final class FlatBuffersUnionTests: XCTestCase {
 
     var objc: MovieT? = movie.unpack()
     XCTAssertEqual(
-      movie.charactersTypeCount,
-      Int32(objc?.characters.count ?? 0))
+      movie.charactersType.count, objc?.characters.count ?? 0)
     XCTAssertEqual(
       movie.characters(at: 0, type: BookReader_Mutable.self)?.booksRead,
       (objc?.characters[0]?.value as? BookReader)?.booksRead)
@@ -268,27 +269,33 @@ final class FlatBuffersUnionTests: XCTestCase {
       let reader: Movie = try getCheckedRoot(byteBuffer: &sizedBuffer)
       let encoder = JSONEncoder()
       encoder.keyEncodingStrategy = .convertToSnakeCase
-      _ = try encoder.encode(reader)
+      encoder.outputFormatting = [.sortedKeys]
+      let data = try encoder.encode(reader)
+      XCTAssertEqual(String(data: data, encoding: .utf8), jsonData)
     } catch {
       XCTFail(error.localizedDescription)
     }
   }
 
   var jsonData: String {
-    "{\"characters_type\":[\"Belle\",\"MuLan\",\"BookFan\",\"Other\"],\"characters\":[{\"books_read\":7},{\"sword_attack_damage\":8},{\"books_read\":2},\"Awesome \\\\\\\\t\\t\\nstring!\"]}"
+    """
+    {"characters":[{"books_read":7},{"sword_attack_damage":8},{"books_read":2},"Awesome \\\\\\\\t\\t\\nstring!"],"characters_type":["Belle","MuLan","BookFan","Other"]}
+    """
   }
 }
 
 public enum ColorsNameSpace {
 
-  enum RGB: Int32, Enum {
+  enum RGB: Int32, Enum, FlatbuffersVectorInitializable {
+    static var min: ColorsNameSpace.RGB { .red }
+
     typealias T = Int32
     static var byteSize: Int { MemoryLayout<Int32>.size }
     var value: Int32 { rawValue }
     case red = 0, green = 1, blue = 2
   }
 
-  struct Monster: FlatBufferObject {
+  struct Monster: FlatBufferTable {
     var __buffer: ByteBuffer! { _accessor.bb }
 
     private var _accessor: Table
@@ -296,7 +303,8 @@ public enum ColorsNameSpace {
       Monster(
         Table(
           bb: bb,
-          position: Int32(bb.read(def: UOffset.self, position: bb.reader)) + Int32(bb.reader)))
+          position: Int32(bb.read(def: UOffset.self, position: bb.reader)) +
+            Int32(bb.reader)))
     }
 
     init(_ t: Table) { _accessor = t }
@@ -307,20 +315,13 @@ public enum ColorsNameSpace {
       return o == 0
         ? 0
         : _accessor
-          .vector(count: o)
+        .vector(count: o)
     }
-    public func colors(at index: Int32) -> ColorsNameSpace
-      .RGB?
-    {
-      let o = _accessor.offset(4)
-      return o == 0
-        ? ColorsNameSpace
-          .RGB(rawValue: 0)!
-        : ColorsNameSpace.RGB(
-          rawValue: _accessor.directRead(
-            of: Int32.self,
-            offset: _accessor.vector(at: o) + index * 4))
+
+    public var colors: FlatbufferVector<RGB> {
+      _accessor.vector(at: 4, byteSize: 4)
     }
+
     static func startMonster(_ fbb: inout FlatBufferBuilder) -> UOffset {
       fbb
         .startTable(with: 1)
@@ -332,8 +333,7 @@ public enum ColorsNameSpace {
     }
     static func endMonster(
       _ fbb: inout FlatBufferBuilder,
-      start: UOffset
-    )
+      start: UOffset)
       -> Offset
     {
       let end = Offset(offset: fbb.endTable(at: start))
@@ -362,8 +362,8 @@ struct FinalMonster {
     weapons: Offset,
     equipment: Equipment = .none,
     equippedOffset: Offset,
-    path: Offset
-  ) -> Offset {
+    path: Offset) -> Offset
+  {
     let start = builder.startTable(with: 11)
     builder.create(struct: position, position: 4)
     builder.add(element: hp, def: 100, at: 8)
@@ -391,7 +391,7 @@ struct LocalMonster {
   func weapon(at index: Int32) -> Weapon? {
     let o =
       __t
-      .offset(4)
+        .offset(4)
     return o == 0
       ? nil
       : Weapon.assign(
@@ -399,7 +399,7 @@ struct LocalMonster {
         __t.bb)
   }
 
-  func equiped<T: FlatBufferObject>() -> T? {
+  func equiped<T: FlatBufferTable>() -> T? {
     let o = __t.offset(8)
     return o == 0 ? nil : __t.union(o)
   }
@@ -416,8 +416,8 @@ struct LocalMonster {
     builder: inout FlatBufferBuilder,
     offset: Offset,
     equipment: Equipment = .none,
-    equippedOffset: UOffset
-  ) -> Offset {
+    equippedOffset: UOffset) -> Offset
+  {
     let start = builder.startTable(with: 3)
     builder.add(element: equippedOffset, def: 0, at: 8)
     builder.add(offset: offset, at: 4)
@@ -429,7 +429,7 @@ struct LocalMonster {
   }
 }
 
-struct Weapon: FlatBufferObject {
+struct Weapon: FlatBufferTable {
 
   var __buffer: ByteBuffer! { __t.bb }
 
@@ -464,8 +464,8 @@ struct Weapon: FlatBufferObject {
   static func createWeapon(
     builder: inout FlatBufferBuilder,
     offset: Offset,
-    dmg: Int16
-  ) -> Offset {
+    dmg: Int16) -> Offset
+  {
     let _start = builder.startTable(with: 2)
     Weapon.add(builder: &builder, name: offset)
     Weapon.add(builder: &builder, dmg: dmg)
@@ -475,8 +475,8 @@ struct Weapon: FlatBufferObject {
   @inlinable
   static func end(
     builder: inout FlatBufferBuilder,
-    startOffset: UOffset
-  ) -> Offset {
+    startOffset: UOffset) -> Offset
+  {
     Offset(offset: builder.endTable(at: startOffset))
   }
 

tests/swift/Tests/Flatbuffers/FlatBuffersVectorsTests.swift

@@ -135,7 +135,9 @@ final class FlatBuffersVectors: XCTestCase {
     let end = Numbers.createNumbers(b: &b, o: v)
     b.finish(offset: end)
     let number = Numbers.getRootAsNumbers(ByteBuffer(bytes: b.sizedByteArray))
-    XCTAssertEqual(number.vArrayInt32, [1, 2, 3, 4, 5])
+    for (index, num) in number.vArrayInt32.enumerated() {
+      XCTAssertEqual(num, data[index])
+    }
   }
 
   func testReadDoubleArray() {
@@ -145,7 +147,9 @@ final class FlatBuffersVectors: XCTestCase {
     let end = Numbers.createNumbers(b: &b, o: v)
     b.finish(offset: end)
     let number = Numbers.getRootAsNumbers(ByteBuffer(bytes: b.sizedByteArray))
-    XCTAssertEqual(number.vArrayDouble, [1, 2, 3, 4, 5])
+    for (index, num) in number.vArrayDouble.enumerated() {
+      XCTAssertEqual(num, data[index])
+    }
   }
 
   func testHasForArray() {
@@ -162,19 +166,22 @@ final class FlatBuffersVectors: XCTestCase {
 
     var byteBuffer = ByteBuffer(bytes: builder.sizedByteArray)
     let msg: Swift_Tests_Vectors = getRoot(byteBuffer: &byteBuffer)
-    XCTAssertEqual(msg.hasNone, false)
-    XCTAssertEqual(msg.hasEmpty, true)
-    XCTAssertEqual(msg.emptyCount, 0)
-    XCTAssertEqual(msg.hasArray, true)
-    XCTAssertEqual(msg.arrayCount, 3)
-    XCTAssertEqual(msg.array, [1, 2, 3])
+    XCTAssertEqual(msg.none_.isEmpty, true)
+    XCTAssertEqual(msg.empty.isEmpty, true)
+    XCTAssertEqual(msg.empty.count, 0)
+    XCTAssertEqual(msg.array.isEmpty, false)
+    XCTAssertEqual(msg.array.count, 3)
 
-    let array = msg.withUnsafePointerToArray { ptr in
+    for i in msg.array.startIndex..<msg.array.endIndex {
+      XCTAssertEqual(msg.array[i], 1 + UInt64(i))
+    }
+
+    let array = msg.withUnsafePointerToArray { ptr, count in
       let ptr: UnsafeBufferPointer<UInt64> = UnsafeBufferPointer(
         start: ptr.baseAddress?.bindMemory(
           to: UInt64.self,
-          capacity: Int(msg.arrayCount)),
-        count: Int(msg.arrayCount))
+          capacity: count),
+        count: count)
       return Array(ptr)
     }
 
@@ -198,36 +205,36 @@ struct Numbers {
         position: Int32(bb.read(def: UOffset.self, position: 0))))
   }
 
-  var vArrayInt: [Int]? { __t.getVector(at: 4) }
-  var vArrayInt32: [Int32]? { __t.getVector(at: 4) }
-  var vArrayDouble: [Double]? { __t.getVector(at: 4) }
-  var vArrayFloat: [Float32]? { __t.getVector(at: 4) }
+  var vArrayInt: FlatbufferVector<Int> { __t.vector(at: 4, byteSize: 8) }
+  var vArrayInt32: FlatbufferVector<Int32> { __t.vector(at: 4, byteSize: 4) }
+  var vArrayDouble: FlatbufferVector<Double> { __t.vector(at: 4, byteSize: 8) }
+  var vArrayFloat: FlatbufferVector<Float32> { __t.vector(at: 4, byteSize: 4) }
 
   static func createNumbersVector(
     b: inout FlatBufferBuilder,
-    array: [Int]
-  ) -> Offset {
+    array: [Int]) -> Offset
+  {
     b.createVector(array, size: array.count)
   }
 
   static func createNumbersVector(
     b: inout FlatBufferBuilder,
-    array: [Int32]
-  ) -> Offset {
+    array: [Int32]) -> Offset
+  {
     b.createVector(array, size: array.count)
   }
 
   static func createNumbersVector(
     b: inout FlatBufferBuilder,
-    array: [Double]
-  ) -> Offset {
+    array: [Double]) -> Offset
+  {
     b.createVector(array, size: array.count)
   }
 
   static func createNumbersVector(
     b: inout FlatBufferBuilder,
-    array: [Float32]
-  ) -> Offset {
+    array: [Float32]) -> Offset
+  {
     b.createVector(array, size: array.count)
   }
 

tests/swift/Tests/Flatbuffers/FlatbuffersDoubleTests.swift

@@ -78,8 +78,8 @@ class CountryDouble {
     builder: inout FlatBufferBuilder,
     name: String,
     log: Double,
-    lan: Double
-  ) -> Offset {
+    lan: Double) -> Offset
+  {
     createCountry(
       builder: &builder,
       offset: builder.create(string: name),
@@ -91,8 +91,8 @@ class CountryDouble {
     builder: inout FlatBufferBuilder,
     offset: Offset,
     log: Double,
-    lan: Double
-  ) -> Offset {
+    lan: Double) -> Offset
+  {
     let _start = builder.startTable(with: 3)
     CountryDouble.add(builder: &builder, lng: log)
     CountryDouble.add(builder: &builder, lan: lan)
@@ -102,8 +102,8 @@ class CountryDouble {
 
   static func end(
     builder: inout FlatBufferBuilder,
-    startOffset: UOffset
-  ) -> Offset {
+    startOffset: UOffset) -> Offset
+  {
     Offset(offset: builder.endTable(at: startOffset))
   }
 

tests/swift/Tests/Flatbuffers/FlatbuffersMoreDefaults.swift

@@ -29,13 +29,13 @@ class FlatBuffersMoreDefaults: XCTestCase {
     let defaults: MoreDefaults = getRoot(byteBuffer: &byteBuffer)
     XCTAssertEqual(defaults.emptyString, "")
     XCTAssertEqual(defaults.someString, "some")
-    XCTAssertEqual(defaults.ints, [])
-    XCTAssertEqual(defaults.floats, [])
-    XCTAssertEqual(defaults.bools, [])
-    XCTAssertEqual(defaults.intsCount, 0)
-    XCTAssertEqual(defaults.floatsCount, 0)
-    XCTAssertEqual(defaults.abcsCount, 0)
-    XCTAssertEqual(defaults.boolsCount, 0)
+    XCTAssertEqual(defaults.ints.isEmpty, true)
+    XCTAssertEqual(defaults.floats.isEmpty, true)
+    XCTAssertEqual(defaults.bools.isEmpty, true)
+    XCTAssertEqual(defaults.ints.count, 0)
+    XCTAssertEqual(defaults.floats.count, 0)
+    XCTAssertEqual(defaults.abcs.count, 0)
+    XCTAssertEqual(defaults.bools.count, 0)
   }
 
   func testFlatbuffersObjectAPI() {
@@ -52,12 +52,12 @@ class FlatBuffersMoreDefaults: XCTestCase {
     let fDefaults: MoreDefaults = getRoot(byteBuffer: &buffer)
     XCTAssertEqual(fDefaults.emptyString, "")
     XCTAssertEqual(fDefaults.someString, "some")
-    XCTAssertEqual(fDefaults.ints, [])
-    XCTAssertEqual(fDefaults.floats, [])
-    XCTAssertEqual(fDefaults.intsCount, 0)
-    XCTAssertEqual(fDefaults.floatsCount, 0)
-    XCTAssertEqual(fDefaults.abcsCount, 0)
-    XCTAssertEqual(fDefaults.boolsCount, 0)
+    XCTAssertEqual(fDefaults.ints.isEmpty, true)
+    XCTAssertEqual(fDefaults.floats.isEmpty, true)
+    XCTAssertEqual(fDefaults.ints.count, 0)
+    XCTAssertEqual(fDefaults.floats.count, 0)
+    XCTAssertEqual(fDefaults.abcs.count, 0)
+    XCTAssertEqual(fDefaults.bools.count, 0)
   }
 
   func testEncoding() {

tests/swift/Tests/Flatbuffers/FlatbuffersVerifierTests.swift

@@ -99,13 +99,17 @@ final class FlatbuffersVerifierTests: XCTestCase {
 
   func testVeriferInitPassing() {
     let memory = UnsafeMutableRawPointer.allocate(byteCount: 8, alignment: 1)
-    var buffer = ByteBuffer(assumingMemoryBound: memory, capacity: Int(FlatBufferMaxSize) - 1)
+    var buffer = ByteBuffer(
+      assumingMemoryBound: memory,
+      capacity: Int(FlatBufferMaxSize) - 1)
     XCTAssertNoThrow(try Verifier(buffer: &buffer))
   }
 
   func testVeriferInitFailing() {
     let memory = UnsafeMutableRawPointer.allocate(byteCount: 8, alignment: 1)
-    var buffer = ByteBuffer(assumingMemoryBound: memory, capacity: Int(FlatBufferMaxSize) + 1)
+    var buffer = ByteBuffer(
+      assumingMemoryBound: memory,
+      capacity: Int(FlatBufferMaxSize) + 1)
     XCTAssertThrowsError(try Verifier(buffer: &buffer))
   }
 
@@ -403,8 +407,8 @@ final class FlatbuffersVerifierTests: XCTestCase {
 
   private func getOffset(
     at value: Int,
-    within verifier: Verifier
-  ) throws -> Int {
+    within verifier: Verifier) throws -> Int
+  {
     let offset: UOffset = try verifier.getValue(at: value)
     return Int(clamping: (Int(offset) &+ 0).magnitude)
   }

tests/swift/Tests/Flatbuffers/MutatingBool_generated.swift

@@ -8,7 +8,7 @@ import Common
 
 import FlatBuffers
 
-public struct Property: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct Property: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -51,7 +51,7 @@ extension Property: Encodable {
   }
 }
 
-public struct Property_Mutable: FlatBufferObject {
+public struct Property_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -76,7 +76,7 @@ public struct Property_Mutable: FlatBufferObject {
   }
 }
 
-public struct TestMutatingBool: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct TestMutatingBool: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }

tests/swift/Tests/Flatbuffers/monster_test_generated.swift

@@ -9,7 +9,7 @@ import Common
 import FlatBuffers
 
 ///  Composite components of Monster color.
-public enum MyGame_Example_Color: UInt8, Enum, Verifiable {
+public enum MyGame_Example_Color: UInt8, FlatbuffersVectorInitializable, Enum, Verifiable {
   public typealias T = UInt8
   public static var byteSize: Int { return MemoryLayout<UInt8>.size }
   public var value: UInt8 { return self.rawValue }
@@ -35,7 +35,7 @@ extension MyGame_Example_Color: Encodable {
   }
 }
 
-public enum MyGame_Example_Race: Int8, Enum, Verifiable {
+public enum MyGame_Example_Race: Int8, FlatbuffersVectorInitializable, Enum, Verifiable {
   public typealias T = Int8
   public static var byteSize: Int { return MemoryLayout<Int8>.size }
   public var value: Int8 { return self.rawValue }
@@ -60,7 +60,7 @@ extension MyGame_Example_Race: Encodable {
   }
 }
 
-public enum MyGame_Example_LongEnum: UInt64, Enum, Verifiable {
+public enum MyGame_Example_LongEnum: UInt64, FlatbuffersVectorInitializable, Enum, Verifiable {
   public typealias T = UInt64
   public static var byteSize: Int { return MemoryLayout<UInt64>.size }
   public var value: UInt64 { return self.rawValue }
@@ -83,7 +83,7 @@ extension MyGame_Example_LongEnum: Encodable {
   }
 }
 
-public enum MyGame_Example_Any_: UInt8, UnionEnum {
+public enum MyGame_Example_Any_: UInt8, FlatbuffersVectorInitializable, UnionEnum {
   public typealias T = UInt8
 
   public init?(value: T) {
@@ -135,7 +135,7 @@ public struct MyGame_Example_Any_Union {
     }
   }
 }
-public enum MyGame_Example_AnyUniqueAliases: UInt8, UnionEnum {
+public enum MyGame_Example_AnyUniqueAliases: UInt8, FlatbuffersVectorInitializable, UnionEnum {
   public typealias T = UInt8
 
   public init?(value: T) {
@@ -187,7 +187,7 @@ public struct MyGame_Example_AnyUniqueAliasesUnion {
     }
   }
 }
-public enum MyGame_Example_AnyAmbiguousAliases: UInt8, UnionEnum {
+public enum MyGame_Example_AnyAmbiguousAliases: UInt8, FlatbuffersVectorInitializable, UnionEnum {
   public typealias T = UInt8
 
   public init?(value: T) {
@@ -239,7 +239,7 @@ public struct MyGame_Example_AnyAmbiguousAliasesUnion {
     }
   }
 }
-public struct MyGame_Example_Test: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Example_Test: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -293,7 +293,7 @@ extension MyGame_Example_Test: Encodable {
   }
 }
 
-public struct MyGame_Example_Test_Mutable: FlatBufferObject {
+public struct MyGame_Example_Test_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -320,7 +320,7 @@ public struct MyGame_Example_Test_Mutable: FlatBufferObject {
   }
 }
 
-public struct MyGame_Example_Vec3: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Example_Vec3: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -415,7 +415,7 @@ extension MyGame_Example_Vec3: Encodable {
   }
 }
 
-public struct MyGame_Example_Vec3_Mutable: FlatBufferObject {
+public struct MyGame_Example_Vec3_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -449,7 +449,7 @@ public struct MyGame_Example_Vec3_Mutable: FlatBufferObject {
   }
 }
 
-public struct MyGame_Example_Ability: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Example_Ability: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -502,7 +502,7 @@ extension MyGame_Example_Ability: Encodable {
   }
 }
 
-public struct MyGame_Example_Ability_Mutable: FlatBufferObject {
+public struct MyGame_Example_Ability_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -529,7 +529,7 @@ public struct MyGame_Example_Ability_Mutable: FlatBufferObject {
   }
 }
 
-public struct MyGame_Example_StructOfStructs: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Example_StructOfStructs: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -589,7 +589,7 @@ extension MyGame_Example_StructOfStructs: Encodable {
   }
 }
 
-public struct MyGame_Example_StructOfStructs_Mutable: FlatBufferObject {
+public struct MyGame_Example_StructOfStructs_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -615,7 +615,7 @@ public struct MyGame_Example_StructOfStructs_Mutable: FlatBufferObject {
   }
 }
 
-public struct MyGame_Example_StructOfStructsOfStructs: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Example_StructOfStructsOfStructs: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -657,7 +657,7 @@ extension MyGame_Example_StructOfStructsOfStructs: Encodable {
   }
 }
 
-public struct MyGame_Example_StructOfStructsOfStructs_Mutable: FlatBufferObject {
+public struct MyGame_Example_StructOfStructsOfStructs_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -681,7 +681,7 @@ public struct MyGame_Example_StructOfStructsOfStructs_Mutable: FlatBufferObject
   }
 }
 
-public struct MyGame_InParentNamespace: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_InParentNamespace: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -733,7 +733,7 @@ public class MyGame_InParentNamespaceT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: MyGame_InParentNamespace.self) }
 
 }
-public struct MyGame_Example2_Monster: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Example2_Monster: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -785,7 +785,7 @@ public class MyGame_Example2_MonsterT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: MyGame_Example2_Monster.self) }
 
 }
-internal struct MyGame_Example_TestSimpleTableWithEnum: FlatBufferObject, Verifiable, ObjectAPIPacker {
+internal struct MyGame_Example_TestSimpleTableWithEnum: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   internal var __buffer: ByteBuffer! { return _accessor.bb }
@@ -866,7 +866,7 @@ internal class MyGame_Example_TestSimpleTableWithEnumT: NativeObject {
   internal func serialize() -> ByteBuffer { return serialize(type: MyGame_Example_TestSimpleTableWithEnum.self) }
 
 }
-public struct MyGame_Example_Stat: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Example_Stat: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -1005,7 +1005,7 @@ public class MyGame_Example_StatT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: MyGame_Example_Stat.self) }
 
 }
-public struct MyGame_Example_Referrable: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Example_Referrable: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -1111,7 +1111,7 @@ public class MyGame_Example_ReferrableT: NativeObject {
 
 }
 ///  an example documentation comment: "monster object"
-public struct MyGame_Example_Monster: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Example_Monster: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -1196,37 +1196,25 @@ public struct MyGame_Example_Monster: FlatBufferObject, Verifiable, ObjectAPIPac
   @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(VTOFFSET.name.v); return _accessor.string(at: o) }
   public var nameSegmentArray: [UInt8]! { return _accessor.getVector(at: VTOFFSET.name.v) }
-  public var hasInventory: Bool { let o = _accessor.offset(VTOFFSET.inventory.v); return o == 0 ? false : true }
-  public var inventoryCount: Int32 { let o = _accessor.offset(VTOFFSET.inventory.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func inventory(at index: Int32) -> UInt8 { let o = _accessor.offset(VTOFFSET.inventory.v); return o == 0 ? 0 : _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var inventory: [UInt8] { return _accessor.getVector(at: VTOFFSET.inventory.v) ?? [] }
+  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(VTOFFSET.inventory.v); return _accessor.directMutate(inventory, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToInventory<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.inventory.v, 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_Example_Color { let o = _accessor.offset(VTOFFSET.color.v); return o == 0 ? .blue : MyGame_Example_Color(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .blue }
   @discardableResult public func mutate(color: MyGame_Example_Color) -> Bool {let o = _accessor.offset(VTOFFSET.color.v);  return _accessor.mutate(color.rawValue, index: o) }
   public var testType: MyGame_Example_Any_ { let o = _accessor.offset(VTOFFSET.testType.v); return o == 0 ? .none_ : MyGame_Example_Any_(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .none_ }
   public func test<T: FlatbuffersInitializable>(type: T.Type) -> T? { let o = _accessor.offset(VTOFFSET.test.v); return o == 0 ? nil : _accessor.union(o) }
-  public var hasTest4: Bool { let o = _accessor.offset(VTOFFSET.test4.v); return o == 0 ? false : true }
-  public var test4Count: Int32 { let o = _accessor.offset(VTOFFSET.test4.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func test4(at index: Int32) -> MyGame_Example_Test? { let o = _accessor.offset(VTOFFSET.test4.v); return o == 0 ? nil : _accessor.directRead(of: MyGame_Example_Test.self, offset: _accessor.vector(at: o) + index * 4) }
-  public func mutableTest4(at index: Int32) -> MyGame_Example_Test_Mutable? { let o = _accessor.offset(VTOFFSET.test4.v); return o == 0 ? nil : MyGame_Example_Test_Mutable(_accessor.bb, o: _accessor.vector(at: o) + index * 4) }
-  public func withUnsafePointerToTest4<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.test4.v, body: body) }
-  public var hasTestarrayofstring: Bool { let o = _accessor.offset(VTOFFSET.testarrayofstring.v); return o == 0 ? false : true }
-  public var testarrayofstringCount: Int32 { let o = _accessor.offset(VTOFFSET.testarrayofstring.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testarrayofstring(at index: Int32) -> String? { let o = _accessor.offset(VTOFFSET.testarrayofstring.v); return o == 0 ? nil : _accessor.directString(at: _accessor.vector(at: o) + index * 4) }
+  public var test4: FlatbufferVector<MyGame_Example_Test> { return _accessor.vector(at: VTOFFSET.test4.v, byteSize: 4) }
+  public var mutableTest4: FlatbufferVector<MyGame_Example_Test_Mutable> { return _accessor.vector(at: VTOFFSET.test4.v, byteSize: 4) }
+  public func withUnsafePointerToTest4<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.test4.v, body: body) }
+  public var testarrayofstring: FlatbufferVector<String?> { return _accessor.vector(at: VTOFFSET.testarrayofstring.v, byteSize: 4) }
   ///  an example documentation comment: this will end up in the generated code
   ///  multiline too
-  public var hasTestarrayoftables: Bool { let o = _accessor.offset(VTOFFSET.testarrayoftables.v); return o == 0 ? false : true }
-  public var testarrayoftablesCount: Int32 { let o = _accessor.offset(VTOFFSET.testarrayoftables.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testarrayoftables(at index: Int32) -> MyGame_Example_Monster? { let o = _accessor.offset(VTOFFSET.testarrayoftables.v); return o == 0 ? nil : MyGame_Example_Monster(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 4)) }
+  public var testarrayoftables: FlatbufferVector<MyGame_Example_Monster> { return _accessor.vector(at: VTOFFSET.testarrayoftables.v, byteSize: 4) }
   public func testarrayoftablesBy(key: String) -> MyGame_Example_Monster? { let o = _accessor.offset(VTOFFSET.testarrayoftables.v); return o == 0 ? nil : MyGame_Example_Monster.lookupByKey(vector: _accessor.vector(at: o), key: key, fbb: _accessor.bb) }
   public var enemy: MyGame_Example_Monster? { let o = _accessor.offset(VTOFFSET.enemy.v); return o == 0 ? nil : MyGame_Example_Monster(_accessor.bb, o: _accessor.indirect(o + _accessor.position)) }
-  public var hasTestnestedflatbuffer: Bool { let o = _accessor.offset(VTOFFSET.testnestedflatbuffer.v); return o == 0 ? false : true }
-  public var testnestedflatbufferCount: Int32 { let o = _accessor.offset(VTOFFSET.testnestedflatbuffer.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testnestedflatbuffer(at index: Int32) -> UInt8 { let o = _accessor.offset(VTOFFSET.testnestedflatbuffer.v); return o == 0 ? 0 : _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var testnestedflatbuffer: [UInt8] { return _accessor.getVector(at: VTOFFSET.testnestedflatbuffer.v) ?? [] }
+  public var testnestedflatbuffer: FlatbufferVector<UInt8> { return _accessor.vector(at: VTOFFSET.testnestedflatbuffer.v, byteSize: 1) }
   public func mutate(testnestedflatbuffer: UInt8, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.testnestedflatbuffer.v); return _accessor.directMutate(testnestedflatbuffer, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToTestnestedflatbuffer<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testnestedflatbuffer.v, body: body) }
+  public func withUnsafePointerToTestnestedflatbuffer<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testnestedflatbuffer.v, body: body) }
   public var testempty: MyGame_Example_Stat? { let o = _accessor.offset(VTOFFSET.testempty.v); return o == 0 ? nil : MyGame_Example_Stat(_accessor.bb, o: _accessor.indirect(o + _accessor.position)) }
   public var testbool: Bool { let o = _accessor.offset(VTOFFSET.testbool.v); return o == 0 ? false : _accessor.readBuffer(of: Bool.self, at: o) }
   @discardableResult public func mutate(testbool: Bool) -> Bool {let o = _accessor.offset(VTOFFSET.testbool.v);  return _accessor.mutate(testbool, index: o) }
@@ -1246,100 +1234,62 @@ public struct MyGame_Example_Monster: FlatBufferObject, Verifiable, ObjectAPIPac
   @discardableResult public func mutate(testhashs64Fnv1a: Int64) -> Bool {let o = _accessor.offset(VTOFFSET.testhashs64Fnv1a.v);  return _accessor.mutate(testhashs64Fnv1a, index: o) }
   public var testhashu64Fnv1a: UInt64 { let o = _accessor.offset(VTOFFSET.testhashu64Fnv1a.v); return o == 0 ? 0 : _accessor.readBuffer(of: UInt64.self, at: o) }
   @discardableResult public func mutate(testhashu64Fnv1a: UInt64) -> Bool {let o = _accessor.offset(VTOFFSET.testhashu64Fnv1a.v);  return _accessor.mutate(testhashu64Fnv1a, index: o) }
-  public var hasTestarrayofbools: Bool { let o = _accessor.offset(VTOFFSET.testarrayofbools.v); return o == 0 ? false : true }
-  public var testarrayofboolsCount: Int32 { let o = _accessor.offset(VTOFFSET.testarrayofbools.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testarrayofbools(at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.testarrayofbools.v); return o == 0 ? true : _accessor.directRead(of: Bool.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var testarrayofbools: [Bool] { return _accessor.getVector(at: VTOFFSET.testarrayofbools.v) ?? [] }
+  public var testarrayofbools: FlatbufferVector<Bool> { return _accessor.vector(at: VTOFFSET.testarrayofbools.v, byteSize: 1) }
   public func mutate(testarrayofbools: Bool, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.testarrayofbools.v); return _accessor.directMutate(testarrayofbools, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToTestarrayofbools<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testarrayofbools.v, body: body) }
+  public func withUnsafePointerToTestarrayofbools<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testarrayofbools.v, body: body) }
   public var testf: Float32 { let o = _accessor.offset(VTOFFSET.testf.v); return o == 0 ? 3.14159 : _accessor.readBuffer(of: Float32.self, at: o) }
   @discardableResult public func mutate(testf: Float32) -> Bool {let o = _accessor.offset(VTOFFSET.testf.v);  return _accessor.mutate(testf, index: o) }
   public var testf2: Float32 { let o = _accessor.offset(VTOFFSET.testf2.v); return o == 0 ? 3.0 : _accessor.readBuffer(of: Float32.self, at: o) }
   @discardableResult public func mutate(testf2: Float32) -> Bool {let o = _accessor.offset(VTOFFSET.testf2.v);  return _accessor.mutate(testf2, index: o) }
   public var testf3: Float32 { let o = _accessor.offset(VTOFFSET.testf3.v); return o == 0 ? 0.0 : _accessor.readBuffer(of: Float32.self, at: o) }
   @discardableResult public func mutate(testf3: Float32) -> Bool {let o = _accessor.offset(VTOFFSET.testf3.v);  return _accessor.mutate(testf3, index: o) }
-  public var hasTestarrayofstring2: Bool { let o = _accessor.offset(VTOFFSET.testarrayofstring2.v); return o == 0 ? false : true }
-  public var testarrayofstring2Count: Int32 { let o = _accessor.offset(VTOFFSET.testarrayofstring2.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testarrayofstring2(at index: Int32) -> String? { let o = _accessor.offset(VTOFFSET.testarrayofstring2.v); return o == 0 ? nil : _accessor.directString(at: _accessor.vector(at: o) + index * 4) }
-  public var hasTestarrayofsortedstruct: Bool { let o = _accessor.offset(VTOFFSET.testarrayofsortedstruct.v); return o == 0 ? false : true }
-  public var testarrayofsortedstructCount: Int32 { let o = _accessor.offset(VTOFFSET.testarrayofsortedstruct.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testarrayofsortedstruct(at index: Int32) -> MyGame_Example_Ability? { let o = _accessor.offset(VTOFFSET.testarrayofsortedstruct.v); return o == 0 ? nil : _accessor.directRead(of: MyGame_Example_Ability.self, offset: _accessor.vector(at: o) + index * 8) }
-  public func mutableTestarrayofsortedstruct(at index: Int32) -> MyGame_Example_Ability_Mutable? { let o = _accessor.offset(VTOFFSET.testarrayofsortedstruct.v); return o == 0 ? nil : MyGame_Example_Ability_Mutable(_accessor.bb, o: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToTestarrayofsortedstruct<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testarrayofsortedstruct.v, body: body) }
-  public var hasFlex: Bool { let o = _accessor.offset(VTOFFSET.flex.v); return o == 0 ? false : true }
-  public var flexCount: Int32 { let o = _accessor.offset(VTOFFSET.flex.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func flex(at index: Int32) -> UInt8 { let o = _accessor.offset(VTOFFSET.flex.v); return o == 0 ? 0 : _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var flex: [UInt8] { return _accessor.getVector(at: VTOFFSET.flex.v) ?? [] }
+  public var testarrayofstring2: FlatbufferVector<String?> { return _accessor.vector(at: VTOFFSET.testarrayofstring2.v, byteSize: 4) }
+  public var testarrayofsortedstruct: FlatbufferVector<MyGame_Example_Ability> { return _accessor.vector(at: VTOFFSET.testarrayofsortedstruct.v, byteSize: 8) }
+  public var mutableTestarrayofsortedstruct: FlatbufferVector<MyGame_Example_Ability_Mutable> { return _accessor.vector(at: VTOFFSET.testarrayofsortedstruct.v, byteSize: 8) }
+  public func withUnsafePointerToTestarrayofsortedstruct<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testarrayofsortedstruct.v, body: body) }
+  public var flex: FlatbufferVector<UInt8> { return _accessor.vector(at: VTOFFSET.flex.v, byteSize: 1) }
   public func mutate(flex: UInt8, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.flex.v); return _accessor.directMutate(flex, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToFlex<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.flex.v, body: body) }
-  public var hasTest5: Bool { let o = _accessor.offset(VTOFFSET.test5.v); return o == 0 ? false : true }
-  public var test5Count: Int32 { let o = _accessor.offset(VTOFFSET.test5.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func test5(at index: Int32) -> MyGame_Example_Test? { let o = _accessor.offset(VTOFFSET.test5.v); return o == 0 ? nil : _accessor.directRead(of: MyGame_Example_Test.self, offset: _accessor.vector(at: o) + index * 4) }
-  public func mutableTest5(at index: Int32) -> MyGame_Example_Test_Mutable? { let o = _accessor.offset(VTOFFSET.test5.v); return o == 0 ? nil : MyGame_Example_Test_Mutable(_accessor.bb, o: _accessor.vector(at: o) + index * 4) }
-  public func withUnsafePointerToTest5<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.test5.v, body: body) }
-  public var hasVectorOfLongs: Bool { let o = _accessor.offset(VTOFFSET.vectorOfLongs.v); return o == 0 ? false : true }
-  public var vectorOfLongsCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfLongs.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfLongs(at index: Int32) -> Int64 { let o = _accessor.offset(VTOFFSET.vectorOfLongs.v); return o == 0 ? 0 : _accessor.directRead(of: Int64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vectorOfLongs: [Int64] { return _accessor.getVector(at: VTOFFSET.vectorOfLongs.v) ?? [] }
+  public func withUnsafePointerToFlex<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.flex.v, body: body) }
+  public var test5: FlatbufferVector<MyGame_Example_Test> { return _accessor.vector(at: VTOFFSET.test5.v, byteSize: 4) }
+  public var mutableTest5: FlatbufferVector<MyGame_Example_Test_Mutable> { return _accessor.vector(at: VTOFFSET.test5.v, byteSize: 4) }
+  public func withUnsafePointerToTest5<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.test5.v, body: body) }
+  public var vectorOfLongs: FlatbufferVector<Int64> { return _accessor.vector(at: VTOFFSET.vectorOfLongs.v, byteSize: 8) }
   public func mutate(vectorOfLongs: Int64, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vectorOfLongs.v); return _accessor.directMutate(vectorOfLongs, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVectorOfLongs<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfLongs.v, body: body) }
-  public var hasVectorOfDoubles: Bool { let o = _accessor.offset(VTOFFSET.vectorOfDoubles.v); return o == 0 ? false : true }
-  public var vectorOfDoublesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfDoubles.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfDoubles(at index: Int32) -> Double { let o = _accessor.offset(VTOFFSET.vectorOfDoubles.v); return o == 0 ? 0 : _accessor.directRead(of: Double.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vectorOfDoubles: [Double] { return _accessor.getVector(at: VTOFFSET.vectorOfDoubles.v) ?? [] }
+  public func withUnsafePointerToVectorOfLongs<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfLongs.v, body: body) }
+  public var vectorOfDoubles: FlatbufferVector<Double> { return _accessor.vector(at: VTOFFSET.vectorOfDoubles.v, byteSize: 8) }
   public func mutate(vectorOfDoubles: Double, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vectorOfDoubles.v); return _accessor.directMutate(vectorOfDoubles, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVectorOfDoubles<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfDoubles.v, body: body) }
+  public func withUnsafePointerToVectorOfDoubles<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfDoubles.v, body: body) }
   public var parentNamespaceTest: MyGame_InParentNamespace? { let o = _accessor.offset(VTOFFSET.parentNamespaceTest.v); return o == 0 ? nil : MyGame_InParentNamespace(_accessor.bb, o: _accessor.indirect(o + _accessor.position)) }
-  public var hasVectorOfReferrables: Bool { let o = _accessor.offset(VTOFFSET.vectorOfReferrables.v); return o == 0 ? false : true }
-  public var vectorOfReferrablesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfReferrables.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfReferrables(at index: Int32) -> MyGame_Example_Referrable? { let o = _accessor.offset(VTOFFSET.vectorOfReferrables.v); return o == 0 ? nil : MyGame_Example_Referrable(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 4)) }
+  public var vectorOfReferrables: FlatbufferVector<MyGame_Example_Referrable> { return _accessor.vector(at: VTOFFSET.vectorOfReferrables.v, byteSize: 4) }
   public func vectorOfReferrablesBy(key: UInt64) -> MyGame_Example_Referrable? { let o = _accessor.offset(VTOFFSET.vectorOfReferrables.v); return o == 0 ? nil : MyGame_Example_Referrable.lookupByKey(vector: _accessor.vector(at: o), key: key, fbb: _accessor.bb) }
   public var singleWeakReference: UInt64 { let o = _accessor.offset(VTOFFSET.singleWeakReference.v); return o == 0 ? 0 : _accessor.readBuffer(of: UInt64.self, at: o) }
   @discardableResult public func mutate(singleWeakReference: UInt64) -> Bool {let o = _accessor.offset(VTOFFSET.singleWeakReference.v);  return _accessor.mutate(singleWeakReference, index: o) }
-  public var hasVectorOfWeakReferences: Bool { let o = _accessor.offset(VTOFFSET.vectorOfWeakReferences.v); return o == 0 ? false : true }
-  public var vectorOfWeakReferencesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfWeakReferences.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfWeakReferences(at index: Int32) -> UInt64 { let o = _accessor.offset(VTOFFSET.vectorOfWeakReferences.v); return o == 0 ? 0 : _accessor.directRead(of: UInt64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vectorOfWeakReferences: [UInt64] { return _accessor.getVector(at: VTOFFSET.vectorOfWeakReferences.v) ?? [] }
+  public var vectorOfWeakReferences: FlatbufferVector<UInt64> { return _accessor.vector(at: VTOFFSET.vectorOfWeakReferences.v, byteSize: 8) }
   public func mutate(vectorOfWeakReferences: UInt64, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vectorOfWeakReferences.v); return _accessor.directMutate(vectorOfWeakReferences, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVectorOfWeakReferences<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfWeakReferences.v, body: body) }
-  public var hasVectorOfStrongReferrables: Bool { let o = _accessor.offset(VTOFFSET.vectorOfStrongReferrables.v); return o == 0 ? false : true }
-  public var vectorOfStrongReferrablesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfStrongReferrables.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfStrongReferrables(at index: Int32) -> MyGame_Example_Referrable? { let o = _accessor.offset(VTOFFSET.vectorOfStrongReferrables.v); return o == 0 ? nil : MyGame_Example_Referrable(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 4)) }
+  public func withUnsafePointerToVectorOfWeakReferences<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfWeakReferences.v, body: body) }
+  public var vectorOfStrongReferrables: FlatbufferVector<MyGame_Example_Referrable> { return _accessor.vector(at: VTOFFSET.vectorOfStrongReferrables.v, byteSize: 4) }
   public func vectorOfStrongReferrablesBy(key: UInt64) -> MyGame_Example_Referrable? { let o = _accessor.offset(VTOFFSET.vectorOfStrongReferrables.v); return o == 0 ? nil : MyGame_Example_Referrable.lookupByKey(vector: _accessor.vector(at: o), key: key, fbb: _accessor.bb) }
   public var coOwningReference: UInt64 { let o = _accessor.offset(VTOFFSET.coOwningReference.v); return o == 0 ? 0 : _accessor.readBuffer(of: UInt64.self, at: o) }
   @discardableResult public func mutate(coOwningReference: UInt64) -> Bool {let o = _accessor.offset(VTOFFSET.coOwningReference.v);  return _accessor.mutate(coOwningReference, index: o) }
-  public var hasVectorOfCoOwningReferences: Bool { let o = _accessor.offset(VTOFFSET.vectorOfCoOwningReferences.v); return o == 0 ? false : true }
-  public var vectorOfCoOwningReferencesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfCoOwningReferences.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfCoOwningReferences(at index: Int32) -> UInt64 { let o = _accessor.offset(VTOFFSET.vectorOfCoOwningReferences.v); return o == 0 ? 0 : _accessor.directRead(of: UInt64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vectorOfCoOwningReferences: [UInt64] { return _accessor.getVector(at: VTOFFSET.vectorOfCoOwningReferences.v) ?? [] }
+  public var vectorOfCoOwningReferences: FlatbufferVector<UInt64> { return _accessor.vector(at: VTOFFSET.vectorOfCoOwningReferences.v, byteSize: 8) }
   public func mutate(vectorOfCoOwningReferences: UInt64, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vectorOfCoOwningReferences.v); return _accessor.directMutate(vectorOfCoOwningReferences, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVectorOfCoOwningReferences<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfCoOwningReferences.v, body: body) }
+  public func withUnsafePointerToVectorOfCoOwningReferences<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfCoOwningReferences.v, body: body) }
   public var nonOwningReference: UInt64 { let o = _accessor.offset(VTOFFSET.nonOwningReference.v); return o == 0 ? 0 : _accessor.readBuffer(of: UInt64.self, at: o) }
   @discardableResult public func mutate(nonOwningReference: UInt64) -> Bool {let o = _accessor.offset(VTOFFSET.nonOwningReference.v);  return _accessor.mutate(nonOwningReference, index: o) }
-  public var hasVectorOfNonOwningReferences: Bool { let o = _accessor.offset(VTOFFSET.vectorOfNonOwningReferences.v); return o == 0 ? false : true }
-  public var vectorOfNonOwningReferencesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfNonOwningReferences.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfNonOwningReferences(at index: Int32) -> UInt64 { let o = _accessor.offset(VTOFFSET.vectorOfNonOwningReferences.v); return o == 0 ? 0 : _accessor.directRead(of: UInt64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vectorOfNonOwningReferences: [UInt64] { return _accessor.getVector(at: VTOFFSET.vectorOfNonOwningReferences.v) ?? [] }
+  public var vectorOfNonOwningReferences: FlatbufferVector<UInt64> { return _accessor.vector(at: VTOFFSET.vectorOfNonOwningReferences.v, byteSize: 8) }
   public func mutate(vectorOfNonOwningReferences: UInt64, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vectorOfNonOwningReferences.v); return _accessor.directMutate(vectorOfNonOwningReferences, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVectorOfNonOwningReferences<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfNonOwningReferences.v, body: body) }
+  public func withUnsafePointerToVectorOfNonOwningReferences<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfNonOwningReferences.v, body: body) }
   public var anyUniqueType: MyGame_Example_AnyUniqueAliases { let o = _accessor.offset(VTOFFSET.anyUniqueType.v); return o == 0 ? .none_ : MyGame_Example_AnyUniqueAliases(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .none_ }
   public func anyUnique<T: FlatbuffersInitializable>(type: T.Type) -> T? { let o = _accessor.offset(VTOFFSET.anyUnique.v); return o == 0 ? nil : _accessor.union(o) }
   public var anyAmbiguousType: MyGame_Example_AnyAmbiguousAliases { let o = _accessor.offset(VTOFFSET.anyAmbiguousType.v); return o == 0 ? .none_ : MyGame_Example_AnyAmbiguousAliases(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .none_ }
   public func anyAmbiguous<T: FlatbuffersInitializable>(type: T.Type) -> T? { let o = _accessor.offset(VTOFFSET.anyAmbiguous.v); return o == 0 ? nil : _accessor.union(o) }
-  public var hasVectorOfEnums: Bool { let o = _accessor.offset(VTOFFSET.vectorOfEnums.v); return o == 0 ? false : true }
-  public var vectorOfEnumsCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfEnums.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfEnums(at index: Int32) -> MyGame_Example_Color? { let o = _accessor.offset(VTOFFSET.vectorOfEnums.v); return o == 0 ? MyGame_Example_Color.red : MyGame_Example_Color(rawValue: _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1)) }
+  public var vectorOfEnums: FlatbufferVector<MyGame_Example_Color> { return _accessor.vector(at: VTOFFSET.vectorOfEnums.v, byteSize: 1) }
   public var signedEnum: MyGame_Example_Race { let o = _accessor.offset(VTOFFSET.signedEnum.v); return o == 0 ? .none_ : MyGame_Example_Race(rawValue: _accessor.readBuffer(of: Int8.self, at: o)) ?? .none_ }
   @discardableResult public func mutate(signedEnum: MyGame_Example_Race) -> Bool {let o = _accessor.offset(VTOFFSET.signedEnum.v);  return _accessor.mutate(signedEnum.rawValue, index: o) }
-  public var hasTestrequirednestedflatbuffer: Bool { let o = _accessor.offset(VTOFFSET.testrequirednestedflatbuffer.v); return o == 0 ? false : true }
-  public var testrequirednestedflatbufferCount: Int32 { let o = _accessor.offset(VTOFFSET.testrequirednestedflatbuffer.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testrequirednestedflatbuffer(at index: Int32) -> UInt8 { let o = _accessor.offset(VTOFFSET.testrequirednestedflatbuffer.v); return o == 0 ? 0 : _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var testrequirednestedflatbuffer: [UInt8] { return _accessor.getVector(at: VTOFFSET.testrequirednestedflatbuffer.v) ?? [] }
+  public var testrequirednestedflatbuffer: FlatbufferVector<UInt8> { return _accessor.vector(at: VTOFFSET.testrequirednestedflatbuffer.v, byteSize: 1) }
   public func mutate(testrequirednestedflatbuffer: UInt8, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.testrequirednestedflatbuffer.v); return _accessor.directMutate(testrequirednestedflatbuffer, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToTestrequirednestedflatbuffer<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testrequirednestedflatbuffer.v, body: body) }
-  public var hasScalarKeySortedTables: Bool { let o = _accessor.offset(VTOFFSET.scalarKeySortedTables.v); return o == 0 ? false : true }
-  public var scalarKeySortedTablesCount: Int32 { let o = _accessor.offset(VTOFFSET.scalarKeySortedTables.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func scalarKeySortedTables(at index: Int32) -> MyGame_Example_Stat? { let o = _accessor.offset(VTOFFSET.scalarKeySortedTables.v); return o == 0 ? nil : MyGame_Example_Stat(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 4)) }
+  public func withUnsafePointerToTestrequirednestedflatbuffer<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testrequirednestedflatbuffer.v, body: body) }
+  public var scalarKeySortedTables: FlatbufferVector<MyGame_Example_Stat> { return _accessor.vector(at: VTOFFSET.scalarKeySortedTables.v, byteSize: 4) }
   public func scalarKeySortedTablesBy(key: UInt16) -> MyGame_Example_Stat? { let o = _accessor.offset(VTOFFSET.scalarKeySortedTables.v); return o == 0 ? nil : MyGame_Example_Stat.lookupByKey(vector: _accessor.vector(at: o), key: key, fbb: _accessor.bb) }
   public var nativeInline: MyGame_Example_Test? { let o = _accessor.offset(VTOFFSET.nativeInline.v); return o == 0 ? nil : _accessor.readBuffer(of: MyGame_Example_Test.self, at: o) }
   public var mutableNativeInline: MyGame_Example_Test_Mutable? { let o = _accessor.offset(VTOFFSET.nativeInline.v); return o == 0 ? nil : MyGame_Example_Test_Mutable(_accessor.bb, o: o + _accessor.position) }
@@ -1604,9 +1554,8 @@ public struct MyGame_Example_Monster: FlatBufferObject, Verifiable, ObjectAPIPac
     let __inventory = builder.createVector(obj.inventory)
     let __test = obj.test?.pack(builder: &builder) ?? Offset()
     MyGame_Example_Monster.startVectorOfTest4(obj.test4.count, in: &builder)
-    for i in obj.test4 {
-      guard let _o = i else { continue }
-      builder.create(struct: _o)
+    for val in obj.test4 {
+      builder.create(struct: val)
     }
     let __test4 = builder.endVector(len: obj.test4.count)
     let __testarrayofstring = builder.createVector(ofStrings: obj.testarrayofstring.compactMap({ $0 }) )
@@ -1621,16 +1570,14 @@ public struct MyGame_Example_Monster: FlatBufferObject, Verifiable, ObjectAPIPac
     let __testarrayofbools = builder.createVector(obj.testarrayofbools)
     let __testarrayofstring2 = builder.createVector(ofStrings: obj.testarrayofstring2.compactMap({ $0 }) )
     MyGame_Example_Monster.startVectorOfTestarrayofsortedstruct(obj.testarrayofsortedstruct.count, in: &builder)
-    for i in obj.testarrayofsortedstruct {
-      guard let _o = i else { continue }
-      builder.create(struct: _o)
+    for val in obj.testarrayofsortedstruct {
+      builder.create(struct: val)
     }
     let __testarrayofsortedstruct = builder.endVector(len: obj.testarrayofsortedstruct.count)
     let __flex = builder.createVector(obj.flex)
     MyGame_Example_Monster.startVectorOfTest5(obj.test5.count, in: &builder)
-    for i in obj.test5 {
-      guard let _o = i else { continue }
-      builder.create(struct: _o)
+    for val in obj.test5 {
+      builder.create(struct: val)
     }
     let __test5 = builder.endVector(len: obj.test5.count)
     let __vectorOfLongs = builder.createVector(obj.vectorOfLongs)
@@ -1904,9 +1851,7 @@ extension MyGame_Example_Monster: Encodable {
       try container.encodeIfPresent(hp, forKey: .hp)
     }
     try container.encodeIfPresent(name, forKey: .name)
-    if inventoryCount > 0 {
-      try container.encodeIfPresent(inventory, forKey: .inventory)
-    }
+    try container.encodeIfPresent(inventory, forKey: .inventory)
     if color != .blue {
       try container.encodeIfPresent(color, forKey: .color)
     }
@@ -1925,31 +1870,11 @@ extension MyGame_Example_Monster: Encodable {
       try container.encodeIfPresent(_v, forKey: .test)
     default: break;
     }
-    if test4Count > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .test4)
-      for index in 0..<test4Count {
-        guard let type = test4(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if testarrayofstringCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .testarrayofstring)
-      for index in 0..<testarrayofstringCount {
-        guard let type = testarrayofstring(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if testarrayoftablesCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .testarrayoftables)
-      for index in 0..<testarrayoftablesCount {
-        guard let type = testarrayoftables(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(test4, forKey: .test4)
+    try container.encodeIfPresent(testarrayofstring, forKey: .testarrayofstring)
+    try container.encodeIfPresent(testarrayoftables, forKey: .testarrayoftables)
     try container.encodeIfPresent(enemy, forKey: .enemy)
-    if testnestedflatbufferCount > 0 {
-      try container.encodeIfPresent(testnestedflatbuffer, forKey: .testnestedflatbuffer)
-    }
+    try container.encodeIfPresent(testnestedflatbuffer, forKey: .testnestedflatbuffer)
     try container.encodeIfPresent(testempty, forKey: .testempty)
     if testbool != false {
       try container.encodeIfPresent(testbool, forKey: .testbool)
@@ -1978,9 +1903,7 @@ extension MyGame_Example_Monster: Encodable {
     if testhashu64Fnv1a != 0 {
       try container.encodeIfPresent(testhashu64Fnv1a, forKey: .testhashu64Fnv1a)
     }
-    if testarrayofboolsCount > 0 {
-      try container.encodeIfPresent(testarrayofbools, forKey: .testarrayofbools)
-    }
+    try container.encodeIfPresent(testarrayofbools, forKey: .testarrayofbools)
     if testf != 3.14159 {
       try container.encodeIfPresent(testf, forKey: .testf)
     }
@@ -1990,69 +1913,27 @@ extension MyGame_Example_Monster: Encodable {
     if testf3 != 0.0 {
       try container.encodeIfPresent(testf3, forKey: .testf3)
     }
-    if testarrayofstring2Count > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .testarrayofstring2)
-      for index in 0..<testarrayofstring2Count {
-        guard let type = testarrayofstring2(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if testarrayofsortedstructCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .testarrayofsortedstruct)
-      for index in 0..<testarrayofsortedstructCount {
-        guard let type = testarrayofsortedstruct(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if flexCount > 0 {
-      try container.encodeIfPresent(flex, forKey: .flex)
-    }
-    if test5Count > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .test5)
-      for index in 0..<test5Count {
-        guard let type = test5(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if vectorOfLongsCount > 0 {
-      try container.encodeIfPresent(vectorOfLongs, forKey: .vectorOfLongs)
-    }
-    if vectorOfDoublesCount > 0 {
-      try container.encodeIfPresent(vectorOfDoubles, forKey: .vectorOfDoubles)
-    }
+    try container.encodeIfPresent(testarrayofstring2, forKey: .testarrayofstring2)
+    try container.encodeIfPresent(testarrayofsortedstruct, forKey: .testarrayofsortedstruct)
+    try container.encodeIfPresent(flex, forKey: .flex)
+    try container.encodeIfPresent(test5, forKey: .test5)
+    try container.encodeIfPresent(vectorOfLongs, forKey: .vectorOfLongs)
+    try container.encodeIfPresent(vectorOfDoubles, forKey: .vectorOfDoubles)
     try container.encodeIfPresent(parentNamespaceTest, forKey: .parentNamespaceTest)
-    if vectorOfReferrablesCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .vectorOfReferrables)
-      for index in 0..<vectorOfReferrablesCount {
-        guard let type = vectorOfReferrables(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(vectorOfReferrables, forKey: .vectorOfReferrables)
     if singleWeakReference != 0 {
       try container.encodeIfPresent(singleWeakReference, forKey: .singleWeakReference)
     }
-    if vectorOfWeakReferencesCount > 0 {
-      try container.encodeIfPresent(vectorOfWeakReferences, forKey: .vectorOfWeakReferences)
-    }
-    if vectorOfStrongReferrablesCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .vectorOfStrongReferrables)
-      for index in 0..<vectorOfStrongReferrablesCount {
-        guard let type = vectorOfStrongReferrables(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(vectorOfWeakReferences, forKey: .vectorOfWeakReferences)
+    try container.encodeIfPresent(vectorOfStrongReferrables, forKey: .vectorOfStrongReferrables)
     if coOwningReference != 0 {
       try container.encodeIfPresent(coOwningReference, forKey: .coOwningReference)
     }
-    if vectorOfCoOwningReferencesCount > 0 {
-      try container.encodeIfPresent(vectorOfCoOwningReferences, forKey: .vectorOfCoOwningReferences)
-    }
+    try container.encodeIfPresent(vectorOfCoOwningReferences, forKey: .vectorOfCoOwningReferences)
     if nonOwningReference != 0 {
       try container.encodeIfPresent(nonOwningReference, forKey: .nonOwningReference)
     }
-    if vectorOfNonOwningReferencesCount > 0 {
-      try container.encodeIfPresent(vectorOfNonOwningReferences, forKey: .vectorOfNonOwningReferences)
-    }
+    try container.encodeIfPresent(vectorOfNonOwningReferences, forKey: .vectorOfNonOwningReferences)
     if anyUniqueType != .none_ {
       try container.encodeIfPresent(anyUniqueType, forKey: .anyUniqueType)
     }
@@ -2083,26 +1964,12 @@ extension MyGame_Example_Monster: Encodable {
       try container.encodeIfPresent(_v, forKey: .anyAmbiguous)
     default: break;
     }
-    if vectorOfEnumsCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .vectorOfEnums)
-      for index in 0..<vectorOfEnumsCount {
-        guard let type = vectorOfEnums(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(vectorOfEnums, forKey: .vectorOfEnums)
     if signedEnum != .none_ {
       try container.encodeIfPresent(signedEnum, forKey: .signedEnum)
     }
-    if testrequirednestedflatbufferCount > 0 {
-      try container.encodeIfPresent(testrequirednestedflatbuffer, forKey: .testrequirednestedflatbuffer)
-    }
-    if scalarKeySortedTablesCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .scalarKeySortedTables)
-      for index in 0..<scalarKeySortedTablesCount {
-        guard let type = scalarKeySortedTables(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(testrequirednestedflatbuffer, forKey: .testrequirednestedflatbuffer)
+    try container.encodeIfPresent(scalarKeySortedTables, forKey: .scalarKeySortedTables)
     try container.encodeIfPresent(nativeInline, forKey: .nativeInline)
     if longEnumNonEnumDefault != .longone {
       try container.encodeIfPresent(longEnumNonEnumDefault, forKey: .longEnumNonEnumDefault)
@@ -2146,7 +2013,7 @@ public class MyGame_Example_MonsterT: NativeObject {
   public var inventory: [UInt8]
   public var color: MyGame_Example_Color
   public var test: MyGame_Example_Any_Union?
-  public var test4: [MyGame_Example_Test?]
+  public var test4: [MyGame_Example_Test]
   public var testarrayofstring: [String?]
   public var testarrayoftables: [MyGame_Example_MonsterT?]
   public var enemy: MyGame_Example_MonsterT?
@@ -2166,9 +2033,9 @@ public class MyGame_Example_MonsterT: NativeObject {
   public var testf2: Float32
   public var testf3: Float32
   public var testarrayofstring2: [String?]
-  public var testarrayofsortedstruct: [MyGame_Example_Ability?]
+  public var testarrayofsortedstruct: [MyGame_Example_Ability]
   public var flex: [UInt8]
-  public var test5: [MyGame_Example_Test?]
+  public var test5: [MyGame_Example_Test]
   public var vectorOfLongs: [Int64]
   public var vectorOfDoubles: [Double]
   public var parentNamespaceTest: MyGame_InParentNamespaceT?
@@ -2204,9 +2071,7 @@ public class MyGame_Example_MonsterT: NativeObject {
     hp = _t.hp
     name = _t.name
     inventory = []
-    for index in 0..<_t.inventoryCount {
-        inventory.append(_t.inventory(at: index))
-    }
+    inventory.append(contentsOf: _t.inventory)
     color = _t.color
     switch _t.testType {
     case .monster:
@@ -2221,24 +2086,17 @@ public class MyGame_Example_MonsterT: NativeObject {
     default: break
     }
     test4 = []
-    for index in 0..<_t.test4Count {
-        test4.append(_t.test4(at: index))
-    }
+    test4.append(contentsOf: _t.test4)
     testarrayofstring = []
-    for index in 0..<_t.testarrayofstringCount {
-        testarrayofstring.append(_t.testarrayofstring(at: index))
-    }
+    testarrayofstring.append(contentsOf: _t.testarrayofstring)
     testarrayoftables = []
-    for index in 0..<_t.testarrayoftablesCount {
-        var __v_ = _t.testarrayoftables(at: index)
-        testarrayoftables.append(__v_?.unpack())
+    for var val in _t.testarrayoftables{
+        testarrayoftables.append(val.unpack())
     }
     var __enemy = _t.enemy
     enemy = __enemy?.unpack()
     testnestedflatbuffer = []
-    for index in 0..<_t.testnestedflatbufferCount {
-        testnestedflatbuffer.append(_t.testnestedflatbuffer(at: index))
-    }
+    testnestedflatbuffer.append(contentsOf: _t.testnestedflatbuffer)
     var __testempty = _t.testempty
     testempty = __testempty?.unpack()
     testbool = _t.testbool
@@ -2251,63 +2109,41 @@ public class MyGame_Example_MonsterT: NativeObject {
     testhashs64Fnv1a = _t.testhashs64Fnv1a
     testhashu64Fnv1a = _t.testhashu64Fnv1a
     testarrayofbools = []
-    for index in 0..<_t.testarrayofboolsCount {
-        testarrayofbools.append(_t.testarrayofbools(at: index))
-    }
+    testarrayofbools.append(contentsOf: _t.testarrayofbools)
     testf = _t.testf
     testf2 = _t.testf2
     testf3 = _t.testf3
     testarrayofstring2 = []
-    for index in 0..<_t.testarrayofstring2Count {
-        testarrayofstring2.append(_t.testarrayofstring2(at: index))
-    }
+    testarrayofstring2.append(contentsOf: _t.testarrayofstring2)
     testarrayofsortedstruct = []
-    for index in 0..<_t.testarrayofsortedstructCount {
-        testarrayofsortedstruct.append(_t.testarrayofsortedstruct(at: index))
-    }
+    testarrayofsortedstruct.append(contentsOf: _t.testarrayofsortedstruct)
     flex = []
-    for index in 0..<_t.flexCount {
-        flex.append(_t.flex(at: index))
-    }
+    flex.append(contentsOf: _t.flex)
     test5 = []
-    for index in 0..<_t.test5Count {
-        test5.append(_t.test5(at: index))
-    }
+    test5.append(contentsOf: _t.test5)
     vectorOfLongs = []
-    for index in 0..<_t.vectorOfLongsCount {
-        vectorOfLongs.append(_t.vectorOfLongs(at: index))
-    }
+    vectorOfLongs.append(contentsOf: _t.vectorOfLongs)
     vectorOfDoubles = []
-    for index in 0..<_t.vectorOfDoublesCount {
-        vectorOfDoubles.append(_t.vectorOfDoubles(at: index))
-    }
+    vectorOfDoubles.append(contentsOf: _t.vectorOfDoubles)
     var __parentNamespaceTest = _t.parentNamespaceTest
     parentNamespaceTest = __parentNamespaceTest?.unpack()
     vectorOfReferrables = []
-    for index in 0..<_t.vectorOfReferrablesCount {
-        var __v_ = _t.vectorOfReferrables(at: index)
-        vectorOfReferrables.append(__v_?.unpack())
+    for var val in _t.vectorOfReferrables{
+        vectorOfReferrables.append(val.unpack())
     }
     singleWeakReference = _t.singleWeakReference
     vectorOfWeakReferences = []
-    for index in 0..<_t.vectorOfWeakReferencesCount {
-        vectorOfWeakReferences.append(_t.vectorOfWeakReferences(at: index))
-    }
+    vectorOfWeakReferences.append(contentsOf: _t.vectorOfWeakReferences)
     vectorOfStrongReferrables = []
-    for index in 0..<_t.vectorOfStrongReferrablesCount {
-        var __v_ = _t.vectorOfStrongReferrables(at: index)
-        vectorOfStrongReferrables.append(__v_?.unpack())
+    for var val in _t.vectorOfStrongReferrables{
+        vectorOfStrongReferrables.append(val.unpack())
     }
     coOwningReference = _t.coOwningReference
     vectorOfCoOwningReferences = []
-    for index in 0..<_t.vectorOfCoOwningReferencesCount {
-        vectorOfCoOwningReferences.append(_t.vectorOfCoOwningReferences(at: index))
-    }
+    vectorOfCoOwningReferences.append(contentsOf: _t.vectorOfCoOwningReferences)
     nonOwningReference = _t.nonOwningReference
     vectorOfNonOwningReferences = []
-    for index in 0..<_t.vectorOfNonOwningReferencesCount {
-        vectorOfNonOwningReferences.append(_t.vectorOfNonOwningReferences(at: index))
-    }
+    vectorOfNonOwningReferences.append(contentsOf: _t.vectorOfNonOwningReferences)
     switch _t.anyUniqueType {
     case .m:
       var _v = _t.anyUnique(type: MyGame_Example_Monster.self)
@@ -2333,18 +2169,13 @@ public class MyGame_Example_MonsterT: NativeObject {
     default: break
     }
     vectorOfEnums = []
-    for index in 0..<_t.vectorOfEnumsCount {
-        vectorOfEnums.append(_t.vectorOfEnums(at: index)!)
-    }
+    vectorOfEnums.append(contentsOf: _t.vectorOfEnums)
     signedEnum = _t.signedEnum
     testrequirednestedflatbuffer = []
-    for index in 0..<_t.testrequirednestedflatbufferCount {
-        testrequirednestedflatbuffer.append(_t.testrequirednestedflatbuffer(at: index))
-    }
+    testrequirednestedflatbuffer.append(contentsOf: _t.testrequirednestedflatbuffer)
     scalarKeySortedTables = []
-    for index in 0..<_t.scalarKeySortedTablesCount {
-        var __v_ = _t.scalarKeySortedTables(at: index)
-        scalarKeySortedTables.append(__v_?.unpack())
+    for var val in _t.scalarKeySortedTables{
+        scalarKeySortedTables.append(val.unpack())
     }
     nativeInline = _t.nativeInline
     longEnumNonEnumDefault = _t.longEnumNonEnumDefault
@@ -2420,7 +2251,7 @@ public class MyGame_Example_MonsterT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: MyGame_Example_Monster.self) }
 
 }
-public struct MyGame_Example_TypeAliases: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Example_TypeAliases: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -2468,18 +2299,12 @@ public struct MyGame_Example_TypeAliases: FlatBufferObject, Verifiable, ObjectAP
   @discardableResult public func mutate(f32: Float32) -> Bool {let o = _accessor.offset(VTOFFSET.f32.v);  return _accessor.mutate(f32, index: o) }
   public var f64: Double { let o = _accessor.offset(VTOFFSET.f64.v); return o == 0 ? 0.0 : _accessor.readBuffer(of: Double.self, at: o) }
   @discardableResult public func mutate(f64: Double) -> Bool {let o = _accessor.offset(VTOFFSET.f64.v);  return _accessor.mutate(f64, index: o) }
-  public var hasV8: Bool { let o = _accessor.offset(VTOFFSET.v8.v); return o == 0 ? false : true }
-  public var v8Count: Int32 { let o = _accessor.offset(VTOFFSET.v8.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func v8(at index: Int32) -> Int8 { let o = _accessor.offset(VTOFFSET.v8.v); return o == 0 ? 0 : _accessor.directRead(of: Int8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var v8: [Int8] { return _accessor.getVector(at: VTOFFSET.v8.v) ?? [] }
+  public var v8: FlatbufferVector<Int8> { return _accessor.vector(at: VTOFFSET.v8.v, byteSize: 1) }
   public func mutate(v8: Int8, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.v8.v); return _accessor.directMutate(v8, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToV8<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.v8.v, body: body) }
-  public var hasVf64: Bool { let o = _accessor.offset(VTOFFSET.vf64.v); return o == 0 ? false : true }
-  public var vf64Count: Int32 { let o = _accessor.offset(VTOFFSET.vf64.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vf64(at index: Int32) -> Double { let o = _accessor.offset(VTOFFSET.vf64.v); return o == 0 ? 0 : _accessor.directRead(of: Double.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vf64: [Double] { return _accessor.getVector(at: VTOFFSET.vf64.v) ?? [] }
+  public func withUnsafePointerToV8<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.v8.v, body: body) }
+  public var vf64: FlatbufferVector<Double> { return _accessor.vector(at: VTOFFSET.vf64.v, byteSize: 8) }
   public func mutate(vf64: Double, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vf64.v); return _accessor.directMutate(vf64, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVf64<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vf64.v, body: body) }
+  public func withUnsafePointerToVf64<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vf64.v, body: body) }
   public static func startTypeAliases(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 12) }
   public static func add(i8: Int8, _ fbb: inout FlatBufferBuilder) { fbb.add(element: i8, def: 0, at: VTOFFSET.i8.p) }
   public static func add(u8: UInt8, _ fbb: inout FlatBufferBuilder) { fbb.add(element: u8, def: 0, at: VTOFFSET.u8.p) }
@@ -2619,12 +2444,8 @@ extension MyGame_Example_TypeAliases: Encodable {
     if f64 != 0.0 {
       try container.encodeIfPresent(f64, forKey: .f64)
     }
-    if v8Count > 0 {
-      try container.encodeIfPresent(v8, forKey: .v8)
-    }
-    if vf64Count > 0 {
-      try container.encodeIfPresent(vf64, forKey: .vf64)
-    }
+    try container.encodeIfPresent(v8, forKey: .v8)
+    try container.encodeIfPresent(vf64, forKey: .vf64)
   }
 }
 
@@ -2655,13 +2476,9 @@ public class MyGame_Example_TypeAliasesT: NativeObject {
     f32 = _t.f32
     f64 = _t.f64
     v8 = []
-    for index in 0..<_t.v8Count {
-        v8.append(_t.v8(at: index))
-    }
+    v8.append(contentsOf: _t.v8)
     vf64 = []
-    for index in 0..<_t.vf64Count {
-        vf64.append(_t.vf64(at: index))
-    }
+    vf64.append(contentsOf: _t.vf64)
   }
 
   public init() {

tests/swift/Tests/Flatbuffers/more_defaults_generated.swift

@@ -8,7 +8,7 @@ import Common
 
 import FlatBuffers
 
-public enum ABC: Int32, Enum, Verifiable {
+public enum ABC: Int32, FlatbuffersVectorInitializable, Enum, Verifiable {
   public typealias T = Int32
   public static var byteSize: Int { return MemoryLayout<Int32>.size }
   public var value: Int32 { return self.rawValue }
@@ -31,7 +31,7 @@ extension ABC: Encodable {
   }
 }
 
-public struct MoreDefaults: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MoreDefaults: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -51,28 +51,17 @@ public struct MoreDefaults: FlatBufferObject, Verifiable, ObjectAPIPacker {
     var p: VOffset { self.rawValue }
   }
 
-  public var hasInts: Bool { let o = _accessor.offset(VTOFFSET.ints.v); return o == 0 ? false : true }
-  public var intsCount: Int32 { let o = _accessor.offset(VTOFFSET.ints.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func ints(at index: Int32) -> Int32 { let o = _accessor.offset(VTOFFSET.ints.v); return o == 0 ? 0 : _accessor.directRead(of: Int32.self, offset: _accessor.vector(at: o) + index * 4) }
-  public var ints: [Int32] { return _accessor.getVector(at: VTOFFSET.ints.v) ?? [] }
-  public func withUnsafePointerToInts<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.ints.v, body: body) }
-  public var hasFloats: Bool { let o = _accessor.offset(VTOFFSET.floats.v); return o == 0 ? false : true }
-  public var floatsCount: Int32 { let o = _accessor.offset(VTOFFSET.floats.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func floats(at index: Int32) -> Float32 { let o = _accessor.offset(VTOFFSET.floats.v); return o == 0 ? 0 : _accessor.directRead(of: Float32.self, offset: _accessor.vector(at: o) + index * 4) }
-  public var floats: [Float32] { return _accessor.getVector(at: VTOFFSET.floats.v) ?? [] }
-  public func withUnsafePointerToFloats<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.floats.v, body: body) }
+  public var ints: FlatbufferVector<Int32> { return _accessor.vector(at: VTOFFSET.ints.v, byteSize: 4) }
+  public func withUnsafePointerToInts<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.ints.v, body: body) }
+  public var floats: FlatbufferVector<Float32> { return _accessor.vector(at: VTOFFSET.floats.v, byteSize: 4) }
+  public func withUnsafePointerToFloats<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.floats.v, body: body) }
   public var emptyString: String? { let o = _accessor.offset(VTOFFSET.emptyString.v); return o == 0 ? "" : _accessor.string(at: o) }
   public var emptyStringSegmentArray: [UInt8]? { return _accessor.getVector(at: VTOFFSET.emptyString.v) }
   public var someString: String? { let o = _accessor.offset(VTOFFSET.someString.v); return o == 0 ? "some" : _accessor.string(at: o) }
   public var someStringSegmentArray: [UInt8]? { return _accessor.getVector(at: VTOFFSET.someString.v) }
-  public var hasAbcs: Bool { let o = _accessor.offset(VTOFFSET.abcs.v); return o == 0 ? false : true }
-  public var abcsCount: Int32 { let o = _accessor.offset(VTOFFSET.abcs.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func abcs(at index: Int32) -> ABC? { let o = _accessor.offset(VTOFFSET.abcs.v); return o == 0 ? ABC.a : ABC(rawValue: _accessor.directRead(of: Int32.self, offset: _accessor.vector(at: o) + index * 4)) }
-  public var hasBools: Bool { let o = _accessor.offset(VTOFFSET.bools.v); return o == 0 ? false : true }
-  public var boolsCount: Int32 { let o = _accessor.offset(VTOFFSET.bools.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func bools(at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.bools.v); return o == 0 ? true : _accessor.directRead(of: Bool.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var bools: [Bool] { return _accessor.getVector(at: VTOFFSET.bools.v) ?? [] }
-  public func withUnsafePointerToBools<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.bools.v, body: body) }
+  public var abcs: FlatbufferVector<ABC> { return _accessor.vector(at: VTOFFSET.abcs.v, byteSize: 4) }
+  public var bools: FlatbufferVector<Bool> { return _accessor.vector(at: VTOFFSET.bools.v, byteSize: 1) }
+  public func withUnsafePointerToBools<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.bools.v, body: body) }
   public static func startMoreDefaults(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 6) }
   public static func addVectorOf(ints: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: ints, at: VTOFFSET.ints.p) }
   public static func addVectorOf(floats: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: floats, at: VTOFFSET.floats.p) }
@@ -162,24 +151,12 @@ extension MoreDefaults: Encodable {
   }
   public func encode(to encoder: Encoder) throws {
     var container = encoder.container(keyedBy: CodingKeys.self)
-    if intsCount > 0 {
-      try container.encodeIfPresent(ints, forKey: .ints)
-    }
-    if floatsCount > 0 {
-      try container.encodeIfPresent(floats, forKey: .floats)
-    }
+    try container.encodeIfPresent(ints, forKey: .ints)
+    try container.encodeIfPresent(floats, forKey: .floats)
     try container.encodeIfPresent(emptyString, forKey: .emptyString)
     try container.encodeIfPresent(someString, forKey: .someString)
-    if abcsCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .abcs)
-      for index in 0..<abcsCount {
-        guard let type = abcs(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if boolsCount > 0 {
-      try container.encodeIfPresent(bools, forKey: .bools)
-    }
+    try container.encodeIfPresent(abcs, forKey: .abcs)
+    try container.encodeIfPresent(bools, forKey: .bools)
   }
 }
 
@@ -194,23 +171,15 @@ public class MoreDefaultsT: NativeObject {
 
   public init(_ _t: inout MoreDefaults) {
     ints = []
-    for index in 0..<_t.intsCount {
-        ints.append(_t.ints(at: index))
-    }
+    ints.append(contentsOf: _t.ints)
     floats = []
-    for index in 0..<_t.floatsCount {
-        floats.append(_t.floats(at: index))
-    }
+    floats.append(contentsOf: _t.floats)
     emptyString = _t.emptyString
     someString = _t.someString
     abcs = []
-    for index in 0..<_t.abcsCount {
-        abcs.append(_t.abcs(at: index)!)
-    }
+    abcs.append(contentsOf: _t.abcs)
     bools = []
-    for index in 0..<_t.boolsCount {
-        bools.append(_t.bools(at: index))
-    }
+    bools.append(contentsOf: _t.bools)
   }
 
   public init() {

tests/swift/Tests/Flatbuffers/nan_inf_test_generated.swift

@@ -8,7 +8,7 @@ import Common
 
 import FlatBuffers
 
-public struct Swift_Tests_NanInfTable: FlatBufferObject, Verifiable {
+public struct Swift_Tests_NanInfTable: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }

tests/swift/Tests/Flatbuffers/optional_scalars_generated.swift

@@ -8,7 +8,7 @@ import Common
 
 import FlatBuffers
 
-public enum optional_scalars_OptionalByte: Int8, Enum, Verifiable {
+public enum optional_scalars_OptionalByte: Int8, FlatbuffersVectorInitializable, Enum, Verifiable {
   public typealias T = Int8
   public static var byteSize: Int { return MemoryLayout<Int8>.size }
   public var value: Int8 { return self.rawValue }
@@ -31,7 +31,7 @@ extension optional_scalars_OptionalByte: Encodable {
   }
 }
 
-public struct optional_scalars_ScalarStuff: FlatBufferObject, Verifiable {
+public struct optional_scalars_ScalarStuff: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }

tests/swift/Tests/Flatbuffers/union_vector_generated.swift

@@ -8,7 +8,7 @@ import Common
 
 import FlatBuffers
 
-public enum Character: UInt8, UnionEnum {
+public enum Character: UInt8, FlatbuffersVectorInitializable, UnionEnum {
   public typealias T = UInt8
 
   public init?(value: T) {
@@ -75,7 +75,7 @@ public struct CharacterUnion {
     }
   }
 }
-public enum Gadget: UInt8, UnionEnum {
+public enum Gadget: UInt8, FlatbuffersVectorInitializable, UnionEnum {
   public typealias T = UInt8
 
   public init?(value: T) {
@@ -122,7 +122,7 @@ public struct GadgetUnion {
     }
   }
 }
-public struct Rapunzel: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct Rapunzel: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -165,7 +165,7 @@ extension Rapunzel: Encodable {
   }
 }
 
-public struct Rapunzel_Mutable: FlatBufferObject {
+public struct Rapunzel_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -190,7 +190,7 @@ public struct Rapunzel_Mutable: FlatBufferObject {
   }
 }
 
-public struct BookReader: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct BookReader: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -233,7 +233,7 @@ extension BookReader: Encodable {
   }
 }
 
-public struct BookReader_Mutable: FlatBufferObject {
+public struct BookReader_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -258,7 +258,7 @@ public struct BookReader_Mutable: FlatBufferObject {
   }
 }
 
-public struct FallingTub: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct FallingTub: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -301,7 +301,7 @@ extension FallingTub: Encodable {
   }
 }
 
-public struct FallingTub_Mutable: FlatBufferObject {
+public struct FallingTub_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -326,7 +326,7 @@ public struct FallingTub_Mutable: FlatBufferObject {
   }
 }
 
-public struct Attacker: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct Attacker: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -407,7 +407,7 @@ public class AttackerT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: Attacker.self) }
 
 }
-public struct HandFan: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct HandFan: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -488,7 +488,7 @@ public class HandFanT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: HandFan.self) }
 
 }
-public struct Movie: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct Movie: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -510,11 +510,8 @@ public struct Movie: FlatBufferObject, Verifiable, ObjectAPIPacker {
 
   public var mainCharacterType: Character { let o = _accessor.offset(VTOFFSET.mainCharacterType.v); return o == 0 ? .none_ : Character(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .none_ }
   public func mainCharacter<T: FlatbuffersInitializable>(type: T.Type) -> T? { let o = _accessor.offset(VTOFFSET.mainCharacter.v); return o == 0 ? nil : _accessor.union(o) }
-  public var hasCharactersType: Bool { let o = _accessor.offset(VTOFFSET.charactersType.v); return o == 0 ? false : true }
-  public var charactersTypeCount: Int32 { let o = _accessor.offset(VTOFFSET.charactersType.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func charactersType(at index: Int32) -> Character? { let o = _accessor.offset(VTOFFSET.charactersType.v); return o == 0 ? Character.none_ : Character(rawValue: _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1)) }
-  public var hasCharacters: Bool { let o = _accessor.offset(VTOFFSET.characters.v); return o == 0 ? false : true }
-  public var charactersCount: Int32 { let o = _accessor.offset(VTOFFSET.characters.v); return o == 0 ? 0 : _accessor.vector(count: o) }
+  public var charactersType: FlatbufferVector<Character> { return _accessor.vector(at: VTOFFSET.charactersType.v, byteSize: 1) }
+  public var characters: UnionFlatbufferVector { return _accessor.unionVector(at: VTOFFSET.characters.v, byteSize: 4) }
   public func characters<T: FlatbuffersInitializable>(at index: Int32, type: T.Type) -> T? { let o = _accessor.offset(VTOFFSET.characters.v); return o == 0 ? nil : _accessor.directUnion(_accessor.vector(at: o) + index * 4) }
   public static func startMovie(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 4) }
   public static func add(mainCharacterType: Character, _ fbb: inout FlatBufferBuilder) { fbb.add(element: mainCharacterType.rawValue, def: 0, at: VTOFFSET.mainCharacterType.p) }
@@ -642,33 +639,30 @@ extension Movie: Encodable {
       try container.encodeIfPresent(_v, forKey: .mainCharacter)
     default: break;
     }
-    if charactersCount > 0 {
-      var enumsEncoder = container.nestedUnkeyedContainer(forKey: .charactersType)
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .characters)
-      for index in 0..<charactersCount {
-        guard let type = charactersType(at: index) else { continue }
-        try enumsEncoder.encode(type)
-        switch type {
-        case .mulan:
-          let _v = characters(at: index, type: Attacker.self)
-          try contentEncoder.encode(_v)
-        case .rapunzel:
-          let _v = characters(at: index, type: Rapunzel.self)
-          try contentEncoder.encode(_v)
-        case .belle:
-          let _v = characters(at: index, type: BookReader.self)
-          try contentEncoder.encode(_v)
-        case .bookfan:
-          let _v = characters(at: index, type: BookReader.self)
-          try contentEncoder.encode(_v)
-        case .other:
-          let _v = characters(at: index, type: String.self)
-          try contentEncoder.encode(_v)
-        case .unused:
-          let _v = characters(at: index, type: String.self)
-          try contentEncoder.encode(_v)
-        default: break;
-        }
+    try container.encode(charactersType, forKey: .charactersType)
+    var contentEncoder = container.nestedUnkeyedContainer(forKey: .characters)
+    let _characters = charactersType
+    for index in _characters.startIndex..<_characters.endIndex {
+      switch _characters[index] {
+      case .mulan:
+        let _v = characters(at: Int32(index), type: Attacker.self)
+        try contentEncoder.encode(_v)
+      case .rapunzel:
+        let _v = characters(at: Int32(index), type: Rapunzel.self)
+        try contentEncoder.encode(_v)
+      case .belle:
+        let _v = characters(at: Int32(index), type: BookReader.self)
+        try contentEncoder.encode(_v)
+      case .bookfan:
+        let _v = characters(at: Int32(index), type: BookReader.self)
+        try contentEncoder.encode(_v)
+      case .other:
+        let _v = characters(at: Int32(index), type: String.self)
+        try contentEncoder.encode(_v)
+      case .unused:
+        let _v = characters(at: Int32(index), type: String.self)
+        try contentEncoder.encode(_v)
+      default: break;
       }
     }
   }
@@ -702,25 +696,26 @@ public class MovieT: NativeObject {
     default: break
     }
     characters = []
-    for index in 0..<_t.charactersCount {
-        switch _t.charactersType(at: index) {
+    let _charactersType = _t.charactersType
+    for index in _charactersType.startIndex..<_charactersType.endIndex {
+        switch _t.charactersType[index] {
         case .mulan:
-          var _v = _t.characters(at: index, type: Attacker.self)
+          var _v = _t.characters(at: Int32(index), type: Attacker.self)
           characters.append(CharacterUnion(_v?.unpack(), type: .mulan))
         case .rapunzel:
-          var _v = _t.characters(at: index, type: Rapunzel_Mutable.self)
+          var _v = _t.characters(at: Int32(index), type: Rapunzel_Mutable.self)
           characters.append(CharacterUnion(_v?.unpack(), type: .rapunzel))
         case .belle:
-          var _v = _t.characters(at: index, type: BookReader_Mutable.self)
+          var _v = _t.characters(at: Int32(index), type: BookReader_Mutable.self)
           characters.append(CharacterUnion(_v?.unpack(), type: .belle))
         case .bookfan:
-          var _v = _t.characters(at: index, type: BookReader_Mutable.self)
+          var _v = _t.characters(at: Int32(index), type: BookReader_Mutable.self)
           characters.append(CharacterUnion(_v?.unpack(), type: .bookfan))
         case .other:
-          var _v = _t.characters(at: index, type: String.self)
+          var _v = _t.characters(at: Int32(index), type: String.self)
           characters.append(CharacterUnion(_v?.unpack(), type: .other))
         case .unused:
-          var _v = _t.characters(at: index, type: String.self)
+          var _v = _t.characters(at: Int32(index), type: String.self)
           characters.append(CharacterUnion(_v?.unpack(), type: .unused))
         default: break
         }

tests/swift/Tests/Flatbuffers/vector_has_test_generated.swift

@@ -8,7 +8,7 @@ import Common
 
 import FlatBuffers
 
-public struct Swift_Tests_Vectors: FlatBufferObject, Verifiable {
+public struct Swift_Tests_Vectors: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -25,21 +25,12 @@ public struct Swift_Tests_Vectors: FlatBufferObject, Verifiable {
     var p: VOffset { self.rawValue }
   }
 
-  public var hasNone: Bool { let o = _accessor.offset(VTOFFSET.none_.v); return o == 0 ? false : true }
-  public var none_Count: Int32 { let o = _accessor.offset(VTOFFSET.none_.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func none_(at index: Int32) -> UInt64 { let o = _accessor.offset(VTOFFSET.none_.v); return o == 0 ? 0 : _accessor.directRead(of: UInt64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var none_: [UInt64] { return _accessor.getVector(at: VTOFFSET.none_.v) ?? [] }
-  public func withUnsafePointerToNone<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.none_.v, body: body) }
-  public var hasEmpty: Bool { let o = _accessor.offset(VTOFFSET.empty.v); return o == 0 ? false : true }
-  public var emptyCount: Int32 { let o = _accessor.offset(VTOFFSET.empty.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func empty(at index: Int32) -> UInt64 { let o = _accessor.offset(VTOFFSET.empty.v); return o == 0 ? 0 : _accessor.directRead(of: UInt64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var empty: [UInt64] { return _accessor.getVector(at: VTOFFSET.empty.v) ?? [] }
-  public func withUnsafePointerToEmpty<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.empty.v, body: body) }
-  public var hasArray: Bool { let o = _accessor.offset(VTOFFSET.array.v); return o == 0 ? false : true }
-  public var arrayCount: Int32 { let o = _accessor.offset(VTOFFSET.array.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func array(at index: Int32) -> UInt64 { let o = _accessor.offset(VTOFFSET.array.v); return o == 0 ? 0 : _accessor.directRead(of: UInt64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var array: [UInt64] { return _accessor.getVector(at: VTOFFSET.array.v) ?? [] }
-  public func withUnsafePointerToArray<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.array.v, body: body) }
+  public var none_: FlatbufferVector<UInt64> { return _accessor.vector(at: VTOFFSET.none_.v, byteSize: 8) }
+  public func withUnsafePointerToNone<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.none_.v, body: body) }
+  public var empty: FlatbufferVector<UInt64> { return _accessor.vector(at: VTOFFSET.empty.v, byteSize: 8) }
+  public func withUnsafePointerToEmpty<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.empty.v, body: body) }
+  public var array: FlatbufferVector<UInt64> { return _accessor.vector(at: VTOFFSET.array.v, byteSize: 8) }
+  public func withUnsafePointerToArray<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.array.v, body: body) }
   public static func startVectors(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 3) }
   public static func addVectorOf(none_: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: none_, at: VTOFFSET.none_.p) }
   public static func addVectorOf(empty: Offset, _ fbb: inout FlatBufferBuilder) { fbb.add(offset: empty, at: VTOFFSET.empty.p) }
@@ -76,15 +67,9 @@ extension Swift_Tests_Vectors: Encodable {
   }
   public func encode(to encoder: Encoder) throws {
     var container = encoder.container(keyedBy: CodingKeys.self)
-    if none_Count > 0 {
-      try container.encodeIfPresent(none_, forKey: .none_)
-    }
-    if emptyCount > 0 {
-      try container.encodeIfPresent(empty, forKey: .empty)
-    }
-    if arrayCount > 0 {
-      try container.encodeIfPresent(array, forKey: .array)
-    }
+    try container.encodeIfPresent(none_, forKey: .none_)
+    try container.encodeIfPresent(empty, forKey: .empty)
+    try container.encodeIfPresent(array, forKey: .array)
   }
 }
 

tests/swift/Tests/Flexbuffers/FlexBuffersReaderTests.swift

@@ -125,15 +125,15 @@ final class FlexBuffersReaderTests: XCTestCase {
 
   private var path: String {
     #if os(macOS)
-      // Gets the current path of this test file then
-      // strips out the nested directories.
-      let filePath = URL(filePath: #file)
-        .deletingLastPathComponent()
-        .deletingLastPathComponent()
-        .deletingLastPathComponent()
-      return filePath.absoluteString
+    // Gets the current path of this test file then
+    // strips out the nested directories.
+    let filePath = URL(filePath: #file)
+      .deletingLastPathComponent()
+      .deletingLastPathComponent()
+      .deletingLastPathComponent()
+    return filePath.absoluteString
     #else
-      return FileManager.default.currentDirectoryPath
+    return FileManager.default.currentDirectoryPath
     #endif
   }
 

tests/swift/Wasm.tests/Package.swift

@@ -20,7 +20,7 @@ import PackageDescription
 let package = Package(
   name: "FlatBuffers.Test.Swift.Wasm",
   platforms: [
-    .macOS(.v10_14)
+    .macOS(.v10_14),
   ],
   dependencies: [
     .package(path: "../../.."),
@@ -31,6 +31,6 @@ let package = Package(
     .testTarget(
       name: "FlatBuffers.Test.Swift.WasmTests",
       dependencies: [
-        .product(name: "FlatBuffers", package: "flatbuffers")
+        .product(name: "FlatBuffers", package: "flatbuffers"),
       ]),
   ])

tests/swift/Wasm.tests/Tests/FlatBuffers.Test.Swift.WasmTests/FlatBuffersMonsterWriterTests.swift

@@ -68,6 +68,7 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
       ])
     // swiftformat:enable all
     var buffer = bytes.buffer
+
     let monster: MyGame_Example_Monster = getRoot(byteBuffer: &buffer)
     readMonster(monster: monster)
     mutateMonster(fb: bytes.buffer)
@@ -130,7 +131,7 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     let root = Monster.endMonster(&fbb, start: mStart)
     fbb.finish(offset: root)
     var buffer = fbb.sizedBuffer
-    let newMonster: MyGame_Example_Monster = getRoot(byteBuffer: &buffer)
+    let newMonster: Monster = getRoot(byteBuffer: &buffer)
     XCTAssertNil(newMonster.pos)
     XCTAssertEqual(newMonster.name, "Frodo")
   }
@@ -153,30 +154,61 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     fbb.finish(offset: root)
 
     var buffer = fbb.sizedBuffer
-    let newMonster: MyGame_Example_Monster = getRoot(byteBuffer: &buffer)
+    let newMonster: Monster = getRoot(byteBuffer: &buffer)
     XCTAssertEqual(newMonster.pos!.x, 10)
     XCTAssertEqual(newMonster.name, "Barney")
   }
 
+  func testReadMonsterFromUnsafePointerWithoutCopying() {
+    // swiftformat:disable all
+    var array: [UInt8] = [
+      48, 0, 0, 0, 77, 79, 78, 83, 0, 0, 0, 0, 36, 0, 72, 0, 40, 0, 0, 0, 38, 0, 32, 0, 0, 0, 28, 0,
+      0, 0, 27, 0, 20, 0, 16, 0, 12, 0, 4, 0, 0, 0, 0, 0, 0, 0, 11, 0, 36, 0, 0, 0, 164, 0, 0, 0, 0,
+      0, 0, 1, 60, 0, 0, 0, 68, 0, 0, 0, 76, 0, 0, 0, 0, 0, 0, 1, 88, 0, 0, 0, 120, 0, 0, 0, 0, 0,
+      80, 0, 0, 0, 128, 63, 0, 0, 0, 64, 0, 0, 64, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 64, 2, 0, 5,
+      0, 6, 0, 0, 0, 2, 0, 0, 0, 64, 0, 0, 0, 48, 0, 0, 0, 2, 0, 0, 0, 30, 0, 40, 0, 10, 0, 20, 0,
+      152, 255, 255, 255, 4, 0, 0, 0, 4, 0, 0, 0, 70, 114, 101, 100, 0, 0, 0, 0, 5, 0, 0, 0, 0, 1,
+      2, 3, 4, 0, 0, 0, 5, 0, 0, 0, 116, 101, 115, 116, 50, 0, 0, 0, 5, 0, 0, 0, 116, 101, 115, 116,
+      49, 0, 0, 0, 9, 0, 0, 0, 77, 121, 77, 111, 110, 115, 116, 101, 114, 0, 0, 0, 3, 0, 0, 0, 20,
+      0, 0, 0, 36, 0, 0, 0, 4, 0, 0, 0, 240, 255, 255, 255, 32, 0, 0, 0, 248, 255, 255, 255, 36, 0,
+      0, 0, 12, 0, 8, 0, 0, 0, 0, 0, 0, 0, 4, 0, 12, 0, 0, 0, 28, 0, 0, 0, 5, 0, 0, 0, 87, 105, 108,
+      109, 97, 0, 0, 0, 6, 0, 0, 0, 66, 97, 114, 110, 101, 121, 0, 0, 5, 0, 0, 0, 70, 114, 111, 100,
+      111, 0, 0, 0,
+    ]
+    // swiftformat:enable all
+    let unpacked =
+      array
+        .withUnsafeMutableBytes { memory -> MyGame_Example_MonsterT in
+          var bytes = ByteBuffer(
+            assumingMemoryBound: memory.baseAddress!,
+            capacity: memory.count)
+          var monster: Monster = getRoot(byteBuffer: &bytes)
+          readFlatbufferMonster(monster: &monster)
+          let unpacked = monster.unpack()
+          return unpacked
+        }
+    readObjectApi(monster: unpacked)
+  }
+
   func testArrayOfBools() {
     let boolArray = [false, true, false, true, false, true, false]
     var fbb = FlatBufferBuilder(initialSize: 1)
     let name = fbb.create(string: "Frodo")
     let bools = fbb.createVector(boolArray)
+
     let root = Monster.createMonster(
       &fbb,
       nameOffset: name,
       testarrayofboolsVectorOffset: bools)
     fbb.finish(offset: root)
     var buffer = fbb.sizedBuffer
-    let monster: MyGame_Example_Monster = getRoot(byteBuffer: &buffer)
-
+    let monster: Monster = getRoot(byteBuffer: &buffer)
     let values = monster.testarrayofbools
 
-    XCTAssertEqual(boolArray, values)
+    XCTAssertEqual(boolArray.count, values.count)
 
-    for i in 0..<monster.testarrayofboolsCount {
-      XCTAssertEqual(boolArray[Int(i)], monster.testarrayofbools(at: i))
+    for (index, bool) in monster.testarrayofbools.enumerated() {
+      XCTAssertEqual(bool, boolArray[index])
     }
   }
 
@@ -188,6 +220,87 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
           byteBuffer: &byteBuffer) as MyGame_Example_Monster))
   }
 
+  func testUnalignedRead() {
+    // Aligned read
+    let fbb = createMonster(withPrefix: false)
+    let testAligned: () -> Bool = {
+      var buffer = fbb.sizedBuffer
+      var monster: Monster = getRoot(byteBuffer: &buffer)
+      self.readFlatbufferMonster(monster: &monster)
+      return true
+    }
+    XCTAssertEqual(testAligned(), true)
+    let testUnaligned: () -> Bool = {
+      var bytes: [UInt8] = [0x00]
+      bytes.append(contentsOf: fbb.sizedByteArray)
+      return bytes.withUnsafeMutableBytes { ptr in
+        guard var baseAddress = ptr.baseAddress else {
+          XCTFail("Base pointer is not defined")
+          return false
+        }
+        baseAddress = baseAddress.advanced(by: 1)
+        let unlignedPtr = UnsafeMutableRawPointer(baseAddress)
+        var bytes = ByteBuffer(
+          assumingMemoryBound: unlignedPtr,
+          capacity: ptr.count - 1)
+        var monster: Monster = getRoot(byteBuffer: &bytes)
+        self.readFlatbufferMonster(monster: &monster)
+        return true
+      }
+    }
+    XCTAssertEqual(testUnaligned(), true)
+  }
+
+  func testReadingRemovedSizeUnalignedBuffer() {
+    // Aligned read
+    let fbb = createMonster(withPrefix: true)
+    let testUnaligned: () -> Bool = {
+      var bytes: [UInt8] = [0x00]
+      bytes.append(contentsOf: fbb.sizedByteArray)
+      return bytes.withUnsafeMutableBytes { ptr in
+        guard var baseAddress = ptr.baseAddress else {
+          XCTFail("Base pointer is not defined")
+          return false
+        }
+        baseAddress = baseAddress.advanced(by: 1)
+        let unlignedPtr = UnsafeMutableRawPointer(baseAddress)
+        let bytes = ByteBuffer(
+          assumingMemoryBound: unlignedPtr,
+          capacity: ptr.count - 1)
+        var newBuf = FlatBuffersUtils.removeSizePrefix(bb: bytes)
+        var monster: Monster = getRoot(byteBuffer: &newBuf)
+        self.readFlatbufferMonster(monster: &monster)
+        return true
+      }
+    }
+    XCTAssertEqual(testUnaligned(), true)
+  }
+
+  func testForceRetainedObject() {
+    let byteBuffer = {
+      // swiftformat:disable all
+      var data: [UInt8]? = [
+        48, 0, 0, 0, 77, 79, 78, 83, 0, 0, 0, 0, 36, 0, 72, 0, 40, 0, 0, 0, 38, 0, 32, 0, 0, 0, 28,
+        0, 0, 0, 27, 0, 20, 0, 16, 0, 12, 0, 4, 0, 0, 0, 0, 0, 0, 0, 11, 0, 36, 0, 0, 0, 164, 0, 0,
+        0, 0, 0, 0, 1, 60, 0, 0, 0, 68, 0, 0, 0, 76, 0, 0, 0, 0, 0, 0, 1, 88, 0, 0, 0, 120, 0, 0, 0,
+        0, 0, 80, 0, 0, 0, 128, 63, 0, 0, 0, 64, 0, 0, 64, 64, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 64,
+        2, 0, 5, 0, 6, 0, 0, 0, 2, 0, 0, 0, 64, 0, 0, 0, 48, 0, 0, 0, 2, 0, 0, 0, 30, 0, 40, 0, 10,
+        0, 20, 0, 152, 255, 255, 255, 4, 0, 0, 0, 4, 0, 0, 0, 70, 114, 101, 100, 0, 0, 0, 0, 5, 0,
+        0, 0, 0, 1, 2, 3, 4, 0, 0, 0, 5, 0, 0, 0, 116, 101, 115, 116, 50, 0, 0, 0, 5, 0, 0, 0, 116,
+        101, 115, 116, 49, 0, 0, 0, 9, 0, 0, 0, 77, 121, 77, 111, 110, 115, 116, 101, 114, 0, 0, 0,
+        3, 0, 0, 0, 20, 0, 0, 0, 36, 0, 0, 0, 4, 0, 0, 0, 240, 255, 255, 255, 32, 0, 0, 0, 248, 255,
+        255, 255, 36, 0, 0, 0, 12, 0, 8, 0, 0, 0, 0, 0, 0, 0, 4, 0, 12, 0, 0, 0, 28, 0, 0, 0, 5, 0,
+        0, 0, 87, 105, 108, 109, 97, 0, 0, 0, 6, 0, 0, 0, 66, 97, 114, 110, 101, 121, 0, 0, 5, 0, 0,
+        0, 70, 114, 111, 100, 111, 0, 0, 0,
+      ]
+      // swiftformat:enable all
+      let buffer = ByteBuffer(bytes: data!)
+      data = nil
+      return buffer
+    }()
+    readVerifiedMonster(fb: byteBuffer)
+  }
+
   func readMonster(monster: Monster) {
     var monster = monster
     readFlatbufferMonster(monster: &monster)
@@ -195,12 +308,17 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     readObjectApi(monster: unpacked!)
     guard var buffer = unpacked?.serialize()
     else { fatalError("Couldnt generate bytebuffer") }
-    var newMonster: MyGame_Example_Monster = getRoot(byteBuffer: &buffer)
+    var newMonster: Monster = getRoot(byteBuffer: &buffer)
     readFlatbufferMonster(monster: &newMonster)
   }
 
   func createMonster(withPrefix prefix: Bool) -> FlatBufferBuilder {
     var fbb = FlatBufferBuilder(initialSize: 1)
+    write(fbb: &fbb, prefix: prefix)
+    return fbb
+  }
+
+  func write(fbb: inout FlatBufferBuilder, prefix: Bool = false) {
     let names = [
       fbb.create(string: "Frodo"),
       fbb.create(string: "Barney"),
@@ -257,7 +375,6 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     Monster.addVectorOf(testarrayoftables: sortedArray, &fbb)
     let end = Monster.endMonster(&fbb, start: mStart)
     Monster.finish(&fbb, end: end, prefix: prefix)
-    return fbb
   }
 
   func mutateMonster(fb: ByteBuffer) {
@@ -265,9 +382,9 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
 
     let monster: Monster = getRoot(byteBuffer: &fb)
     XCTAssertFalse(monster.mutate(mana: 10))
-    XCTAssertEqual(monster.testarrayoftables(at: 0)?.name, "Barney")
-    XCTAssertEqual(monster.testarrayoftables(at: 1)?.name, "Frodo")
-    XCTAssertEqual(monster.testarrayoftables(at: 2)?.name, "Wilma")
+    XCTAssertEqual(monster.testarrayoftables[0].name, "Barney")
+    XCTAssertEqual(monster.testarrayoftables[1].name, "Frodo")
+    XCTAssertEqual(monster.testarrayoftables[2].name, "Wilma")
 
     // Example of searching for a table by the key
     XCTAssertNotNil(monster.testarrayoftablesBy(key: "Frodo"))
@@ -276,18 +393,14 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
 
     XCTAssertEqual(monster.testType, .monster)
 
-    XCTAssertTrue(monster.mutate(testbool: false))
-    XCTAssertEqual(monster.testbool, false)
-    XCTAssertTrue(monster.mutate(testbool: true))
-
     XCTAssertEqual(monster.mutate(inventory: 1, at: 0), true)
     XCTAssertEqual(monster.mutate(inventory: 2, at: 1), true)
     XCTAssertEqual(monster.mutate(inventory: 3, at: 2), true)
     XCTAssertEqual(monster.mutate(inventory: 4, at: 3), true)
     XCTAssertEqual(monster.mutate(inventory: 5, at: 4), true)
 
-    for i in 0..<monster.inventoryCount {
-      XCTAssertEqual(monster.inventory(at: i), Byte(i + 1))
+    for i in 0..<monster.inventory.count {
+      XCTAssertEqual(monster.inventory[i], Byte(i + 1))
     }
 
     XCTAssertEqual(monster.mutate(inventory: 0, at: 0), true)
@@ -305,6 +418,13 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     XCTAssertTrue(vec?.mutate(x: 1) ?? false)
     XCTAssertEqual(vec?.x, 1)
     XCTAssertTrue(vec?.mutate(test1: 3) ?? false)
+
+    let mutableTest4 = monster.mutableTest4
+    let orignalValues = mutableTest4[0].a
+    XCTAssertEqual(mutableTest4[0].mutate(a: 100), true)
+    XCTAssertNotEqual(monster.test4[0].a, orignalValues)
+    XCTAssertEqual(monster.test4[0].a, 100)
+    XCTAssertEqual(mutableTest4[0].mutate(a: orignalValues), true)
   }
 
   func readFlatbufferMonster(monster: inout MyGame_Example_Monster) {
@@ -327,47 +447,64 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     XCTAssertEqual(monster.mutate(mana: 10), false)
 
     XCTAssertEqual(monster.mana, 150)
-    XCTAssertEqual(monster.inventoryCount, 5)
+    XCTAssertEqual(monster.inventory.count, 5)
     var sum: Byte = 0
-    for i in 0...monster.inventoryCount {
-      sum += monster.inventory(at: i)
+    for inventory in monster.inventory {
+      sum += inventory
     }
     XCTAssertEqual(sum, 10)
-    XCTAssertEqual(monster.test4Count, 2)
 
-    let test0 = monster.test4(at: 0)
-    let test1 = monster.test4(at: 1)
+    monster.withUnsafePointerToInventory { ptr, count in
+      var sum: UInt8 = 0
+      for pointee in ptr.startIndex..<ptr.endIndex {
+        sum += ptr[pointee]
+      }
+      XCTAssertEqual(sum, 10)
+    }
+
+    XCTAssertEqual(monster.test4.count, 2)
+
+    let test4 = monster.test4
     var sum0 = 0
-    var sum1 = 0
-    if let a = test0?.a, let b = test0?.b {
-      sum0 = Int(a) + Int(b)
+    for test0 in test4 {
+      sum0 += Int(test0.a) + Int(test0.b)
     }
-    if let a = test1?.a, let b = test1?.b {
-      sum1 = Int(a) + Int(b)
-    }
-    XCTAssertEqual(sum0 + sum1, 100)
+    XCTAssertEqual(sum0, 100)
 
-    let mutableTest0 = monster.mutableTest4(at: 0)
-    let mutableTest1 = monster.mutableTest4(at: 1)
+    monster.withUnsafePointerToTest4 { ptr, count in
+      guard let ptr = ptr.baseAddress else { return }
+
+      let bindedMemory: UnsafeBufferPointer<MyGame_Example_Test> =
+        UnsafeBufferPointer(
+          start: ptr.bindMemory(
+            to: MyGame_Example_Test.self,
+            capacity: count),
+          count: count)
+      var pointerSum = 0
+      for pointee in bindedMemory.startIndex..<bindedMemory.endIndex {
+        pointerSum += Int(bindedMemory[pointee].a) +
+          Int(bindedMemory[pointee].b)
+      }
+      XCTAssertEqual(pointerSum, 100)
+    }
+
+    let mutableTest4 = monster.mutableTest4
     var sum2 = 0
-    var sum3 = 0
-    if let a = mutableTest0?.a, let b = mutableTest0?.b {
-      sum2 = Int(a) + Int(b)
+    for test0 in mutableTest4 {
+      sum2 += Int(test0.a) + Int(test0.b)
     }
-    if let a = mutableTest1?.a, let b = mutableTest1?.b {
-      sum3 = Int(a) + Int(b)
-    }
-    XCTAssertEqual(sum2 + sum3, 100)
+    XCTAssertEqual(sum2, 100)
 
-    XCTAssertEqual(monster.testarrayofstringCount, 2)
-    XCTAssertEqual(monster.testarrayofstring(at: 0), "test1")
-    XCTAssertEqual(monster.testarrayofstring(at: 1), "test2")
+    let stringArray = monster.testarrayofstring
+    XCTAssertEqual(stringArray.count, 2)
+    XCTAssertEqual(stringArray[0], "test1")
+    XCTAssertEqual(stringArray[1], "test2")
     XCTAssertEqual(monster.testbool, true)
 
     let array = monster.nameSegmentArray
     XCTAssertEqual(String(bytes: array ?? [], encoding: .utf8), "MyMonster")
 
-    if 0 == monster.testarrayofboolsCount {
+    if 0 == monster.testarrayofbools.count {
       XCTAssertEqual(monster.testarrayofbools.isEmpty, true)
     } else {
       XCTAssertEqual(monster.testarrayofbools.isEmpty, false)
@@ -402,20 +539,43 @@ class FlatBuffersMonsterWriterTests: XCTestCase {
     }
     XCTAssertEqual(sum, 10)
     XCTAssertEqual(monster.test4.count, 2)
-    let test0 = monster.test4[0]
-    let test1 = monster.test4[1]
     var sum0 = 0
-    var sum1 = 0
-    if let a = test0?.a, let b = test0?.b {
-      sum0 = Int(a) + Int(b)
+    for test in monster.test4 {
+      sum0 += Int(test.a) + Int(test.b)
     }
-    if let a = test1?.a, let b = test1?.b {
-      sum1 = Int(a) + Int(b)
-    }
-    XCTAssertEqual(sum0 + sum1, 100)
+    XCTAssertEqual(sum0, 100)
     XCTAssertEqual(monster.testbool, true)
   }
 
+  func testEncoding() {
+    let fbb = createMonster(withPrefix: false)
+    var sizedBuffer = fbb.sizedBuffer
+    do {
+      struct Test: Decodable {
+        struct Pos: Decodable {
+          let x, y, z: Int
+        }
+        let hp: Int
+        let inventory: [UInt8]
+        let name: String
+        let pos: Pos
+      }
+      let reader: Monster = try getCheckedRoot(byteBuffer: &sizedBuffer)
+      let encoder = JSONEncoder()
+      encoder.keyEncodingStrategy = .convertToSnakeCase
+      let data = try encoder.encode(reader)
+      let decoder = JSONDecoder()
+      decoder.keyDecodingStrategy = .convertFromSnakeCase
+      let value = try decoder.decode(Test.self, from: data)
+      XCTAssertEqual(value.name, "MyMonster")
+      XCTAssertEqual(value.pos.x, 1)
+      XCTAssertEqual(value.pos.y, 2)
+      XCTAssertEqual(value.pos.z, 3)
+    } catch {
+      XCTFail(error.localizedDescription)
+    }
+  }
+
   var jsonData: String {
     """
     {\"hp\":80,\"inventory\":[0,1,2,3,4],\"test\":{\"name\":\"Fred\"},\"testarrayofstring\":[\"test1\",\"test2\"],\"testarrayoftables\":[{\"name\":\"Barney\"},{\"name\":\"Frodo\"},{\"name\":\"Wilma\"}],\"test4\":[{\"a\":30,\"b\":40},{\"a\":10,\"b\":20}],\"testbool\":true,\"test_type\":\"Monster\",\"pos\":{\"y\":2,\"test3\":{\"a\":5,\"b\":6},\"z\":3,\"x\":1,\"test1\":3,\"test2\":\"Green\"},\"name\":\"MyMonster\"}

tests/swift/Wasm.tests/Tests/FlatBuffers.Test.Swift.WasmTests/monster_test_generated.swift

@@ -9,7 +9,7 @@ import Common
 import FlatBuffers
 
 ///  Composite components of Monster color.
-public enum MyGame_Example_Color: UInt8, Enum, Verifiable {
+public enum MyGame_Example_Color: UInt8, FlatbuffersVectorInitializable, Enum, Verifiable {
   public typealias T = UInt8
   public static var byteSize: Int { return MemoryLayout<UInt8>.size }
   public var value: UInt8 { return self.rawValue }
@@ -35,7 +35,7 @@ extension MyGame_Example_Color: Encodable {
   }
 }
 
-public enum MyGame_Example_Race: Int8, Enum, Verifiable {
+public enum MyGame_Example_Race: Int8, FlatbuffersVectorInitializable, Enum, Verifiable {
   public typealias T = Int8
   public static var byteSize: Int { return MemoryLayout<Int8>.size }
   public var value: Int8 { return self.rawValue }
@@ -60,7 +60,7 @@ extension MyGame_Example_Race: Encodable {
   }
 }
 
-public enum MyGame_Example_LongEnum: UInt64, Enum, Verifiable {
+public enum MyGame_Example_LongEnum: UInt64, FlatbuffersVectorInitializable, Enum, Verifiable {
   public typealias T = UInt64
   public static var byteSize: Int { return MemoryLayout<UInt64>.size }
   public var value: UInt64 { return self.rawValue }
@@ -83,7 +83,7 @@ extension MyGame_Example_LongEnum: Encodable {
   }
 }
 
-public enum MyGame_Example_Any_: UInt8, UnionEnum {
+public enum MyGame_Example_Any_: UInt8, FlatbuffersVectorInitializable, UnionEnum {
   public typealias T = UInt8
 
   public init?(value: T) {
@@ -135,7 +135,7 @@ public struct MyGame_Example_Any_Union {
     }
   }
 }
-public enum MyGame_Example_AnyUniqueAliases: UInt8, UnionEnum {
+public enum MyGame_Example_AnyUniqueAliases: UInt8, FlatbuffersVectorInitializable, UnionEnum {
   public typealias T = UInt8
 
   public init?(value: T) {
@@ -187,7 +187,7 @@ public struct MyGame_Example_AnyUniqueAliasesUnion {
     }
   }
 }
-public enum MyGame_Example_AnyAmbiguousAliases: UInt8, UnionEnum {
+public enum MyGame_Example_AnyAmbiguousAliases: UInt8, FlatbuffersVectorInitializable, UnionEnum {
   public typealias T = UInt8
 
   public init?(value: T) {
@@ -239,7 +239,7 @@ public struct MyGame_Example_AnyAmbiguousAliasesUnion {
     }
   }
 }
-public struct MyGame_Example_Test: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Example_Test: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -293,7 +293,7 @@ extension MyGame_Example_Test: Encodable {
   }
 }
 
-public struct MyGame_Example_Test_Mutable: FlatBufferObject {
+public struct MyGame_Example_Test_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -320,7 +320,7 @@ public struct MyGame_Example_Test_Mutable: FlatBufferObject {
   }
 }
 
-public struct MyGame_Example_Vec3: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Example_Vec3: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -415,7 +415,7 @@ extension MyGame_Example_Vec3: Encodable {
   }
 }
 
-public struct MyGame_Example_Vec3_Mutable: FlatBufferObject {
+public struct MyGame_Example_Vec3_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -449,7 +449,7 @@ public struct MyGame_Example_Vec3_Mutable: FlatBufferObject {
   }
 }
 
-public struct MyGame_Example_Ability: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Example_Ability: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -502,7 +502,7 @@ extension MyGame_Example_Ability: Encodable {
   }
 }
 
-public struct MyGame_Example_Ability_Mutable: FlatBufferObject {
+public struct MyGame_Example_Ability_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -529,7 +529,7 @@ public struct MyGame_Example_Ability_Mutable: FlatBufferObject {
   }
 }
 
-public struct MyGame_Example_StructOfStructs: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Example_StructOfStructs: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -589,7 +589,7 @@ extension MyGame_Example_StructOfStructs: Encodable {
   }
 }
 
-public struct MyGame_Example_StructOfStructs_Mutable: FlatBufferObject {
+public struct MyGame_Example_StructOfStructs_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -615,7 +615,7 @@ public struct MyGame_Example_StructOfStructs_Mutable: FlatBufferObject {
   }
 }
 
-public struct MyGame_Example_StructOfStructsOfStructs: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct MyGame_Example_StructOfStructsOfStructs: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -657,7 +657,7 @@ extension MyGame_Example_StructOfStructsOfStructs: Encodable {
   }
 }
 
-public struct MyGame_Example_StructOfStructsOfStructs_Mutable: FlatBufferObject {
+public struct MyGame_Example_StructOfStructsOfStructs_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -681,7 +681,7 @@ public struct MyGame_Example_StructOfStructsOfStructs_Mutable: FlatBufferObject
   }
 }
 
-public struct MyGame_InParentNamespace: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_InParentNamespace: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -733,7 +733,7 @@ public class MyGame_InParentNamespaceT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: MyGame_InParentNamespace.self) }
 
 }
-public struct MyGame_Example2_Monster: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Example2_Monster: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -785,7 +785,7 @@ public class MyGame_Example2_MonsterT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: MyGame_Example2_Monster.self) }
 
 }
-internal struct MyGame_Example_TestSimpleTableWithEnum: FlatBufferObject, Verifiable, ObjectAPIPacker {
+internal struct MyGame_Example_TestSimpleTableWithEnum: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   internal var __buffer: ByteBuffer! { return _accessor.bb }
@@ -866,7 +866,7 @@ internal class MyGame_Example_TestSimpleTableWithEnumT: NativeObject {
   internal func serialize() -> ByteBuffer { return serialize(type: MyGame_Example_TestSimpleTableWithEnum.self) }
 
 }
-public struct MyGame_Example_Stat: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Example_Stat: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -1005,7 +1005,7 @@ public class MyGame_Example_StatT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: MyGame_Example_Stat.self) }
 
 }
-public struct MyGame_Example_Referrable: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Example_Referrable: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -1111,7 +1111,7 @@ public class MyGame_Example_ReferrableT: NativeObject {
 
 }
 ///  an example documentation comment: "monster object"
-public struct MyGame_Example_Monster: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Example_Monster: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -1196,37 +1196,25 @@ public struct MyGame_Example_Monster: FlatBufferObject, Verifiable, ObjectAPIPac
   @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(VTOFFSET.name.v); return _accessor.string(at: o) }
   public var nameSegmentArray: [UInt8]! { return _accessor.getVector(at: VTOFFSET.name.v) }
-  public var hasInventory: Bool { let o = _accessor.offset(VTOFFSET.inventory.v); return o == 0 ? false : true }
-  public var inventoryCount: Int32 { let o = _accessor.offset(VTOFFSET.inventory.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func inventory(at index: Int32) -> UInt8 { let o = _accessor.offset(VTOFFSET.inventory.v); return o == 0 ? 0 : _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var inventory: [UInt8] { return _accessor.getVector(at: VTOFFSET.inventory.v) ?? [] }
+  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(VTOFFSET.inventory.v); return _accessor.directMutate(inventory, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToInventory<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.inventory.v, 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_Example_Color { let o = _accessor.offset(VTOFFSET.color.v); return o == 0 ? .blue : MyGame_Example_Color(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .blue }
   @discardableResult public func mutate(color: MyGame_Example_Color) -> Bool {let o = _accessor.offset(VTOFFSET.color.v);  return _accessor.mutate(color.rawValue, index: o) }
   public var testType: MyGame_Example_Any_ { let o = _accessor.offset(VTOFFSET.testType.v); return o == 0 ? .none_ : MyGame_Example_Any_(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .none_ }
   public func test<T: FlatbuffersInitializable>(type: T.Type) -> T? { let o = _accessor.offset(VTOFFSET.test.v); return o == 0 ? nil : _accessor.union(o) }
-  public var hasTest4: Bool { let o = _accessor.offset(VTOFFSET.test4.v); return o == 0 ? false : true }
-  public var test4Count: Int32 { let o = _accessor.offset(VTOFFSET.test4.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func test4(at index: Int32) -> MyGame_Example_Test? { let o = _accessor.offset(VTOFFSET.test4.v); return o == 0 ? nil : _accessor.directRead(of: MyGame_Example_Test.self, offset: _accessor.vector(at: o) + index * 4) }
-  public func mutableTest4(at index: Int32) -> MyGame_Example_Test_Mutable? { let o = _accessor.offset(VTOFFSET.test4.v); return o == 0 ? nil : MyGame_Example_Test_Mutable(_accessor.bb, o: _accessor.vector(at: o) + index * 4) }
-  public func withUnsafePointerToTest4<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.test4.v, body: body) }
-  public var hasTestarrayofstring: Bool { let o = _accessor.offset(VTOFFSET.testarrayofstring.v); return o == 0 ? false : true }
-  public var testarrayofstringCount: Int32 { let o = _accessor.offset(VTOFFSET.testarrayofstring.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testarrayofstring(at index: Int32) -> String? { let o = _accessor.offset(VTOFFSET.testarrayofstring.v); return o == 0 ? nil : _accessor.directString(at: _accessor.vector(at: o) + index * 4) }
+  public var test4: FlatbufferVector<MyGame_Example_Test> { return _accessor.vector(at: VTOFFSET.test4.v, byteSize: 4) }
+  public var mutableTest4: FlatbufferVector<MyGame_Example_Test_Mutable> { return _accessor.vector(at: VTOFFSET.test4.v, byteSize: 4) }
+  public func withUnsafePointerToTest4<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.test4.v, body: body) }
+  public var testarrayofstring: FlatbufferVector<String?> { return _accessor.vector(at: VTOFFSET.testarrayofstring.v, byteSize: 4) }
   ///  an example documentation comment: this will end up in the generated code
   ///  multiline too
-  public var hasTestarrayoftables: Bool { let o = _accessor.offset(VTOFFSET.testarrayoftables.v); return o == 0 ? false : true }
-  public var testarrayoftablesCount: Int32 { let o = _accessor.offset(VTOFFSET.testarrayoftables.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testarrayoftables(at index: Int32) -> MyGame_Example_Monster? { let o = _accessor.offset(VTOFFSET.testarrayoftables.v); return o == 0 ? nil : MyGame_Example_Monster(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 4)) }
+  public var testarrayoftables: FlatbufferVector<MyGame_Example_Monster> { return _accessor.vector(at: VTOFFSET.testarrayoftables.v, byteSize: 4) }
   public func testarrayoftablesBy(key: String) -> MyGame_Example_Monster? { let o = _accessor.offset(VTOFFSET.testarrayoftables.v); return o == 0 ? nil : MyGame_Example_Monster.lookupByKey(vector: _accessor.vector(at: o), key: key, fbb: _accessor.bb) }
   public var enemy: MyGame_Example_Monster? { let o = _accessor.offset(VTOFFSET.enemy.v); return o == 0 ? nil : MyGame_Example_Monster(_accessor.bb, o: _accessor.indirect(o + _accessor.position)) }
-  public var hasTestnestedflatbuffer: Bool { let o = _accessor.offset(VTOFFSET.testnestedflatbuffer.v); return o == 0 ? false : true }
-  public var testnestedflatbufferCount: Int32 { let o = _accessor.offset(VTOFFSET.testnestedflatbuffer.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testnestedflatbuffer(at index: Int32) -> UInt8 { let o = _accessor.offset(VTOFFSET.testnestedflatbuffer.v); return o == 0 ? 0 : _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var testnestedflatbuffer: [UInt8] { return _accessor.getVector(at: VTOFFSET.testnestedflatbuffer.v) ?? [] }
+  public var testnestedflatbuffer: FlatbufferVector<UInt8> { return _accessor.vector(at: VTOFFSET.testnestedflatbuffer.v, byteSize: 1) }
   public func mutate(testnestedflatbuffer: UInt8, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.testnestedflatbuffer.v); return _accessor.directMutate(testnestedflatbuffer, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToTestnestedflatbuffer<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testnestedflatbuffer.v, body: body) }
+  public func withUnsafePointerToTestnestedflatbuffer<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testnestedflatbuffer.v, body: body) }
   public var testempty: MyGame_Example_Stat? { let o = _accessor.offset(VTOFFSET.testempty.v); return o == 0 ? nil : MyGame_Example_Stat(_accessor.bb, o: _accessor.indirect(o + _accessor.position)) }
   public var testbool: Bool { let o = _accessor.offset(VTOFFSET.testbool.v); return o == 0 ? false : _accessor.readBuffer(of: Bool.self, at: o) }
   @discardableResult public func mutate(testbool: Bool) -> Bool {let o = _accessor.offset(VTOFFSET.testbool.v);  return _accessor.mutate(testbool, index: o) }
@@ -1246,100 +1234,62 @@ public struct MyGame_Example_Monster: FlatBufferObject, Verifiable, ObjectAPIPac
   @discardableResult public func mutate(testhashs64Fnv1a: Int64) -> Bool {let o = _accessor.offset(VTOFFSET.testhashs64Fnv1a.v);  return _accessor.mutate(testhashs64Fnv1a, index: o) }
   public var testhashu64Fnv1a: UInt64 { let o = _accessor.offset(VTOFFSET.testhashu64Fnv1a.v); return o == 0 ? 0 : _accessor.readBuffer(of: UInt64.self, at: o) }
   @discardableResult public func mutate(testhashu64Fnv1a: UInt64) -> Bool {let o = _accessor.offset(VTOFFSET.testhashu64Fnv1a.v);  return _accessor.mutate(testhashu64Fnv1a, index: o) }
-  public var hasTestarrayofbools: Bool { let o = _accessor.offset(VTOFFSET.testarrayofbools.v); return o == 0 ? false : true }
-  public var testarrayofboolsCount: Int32 { let o = _accessor.offset(VTOFFSET.testarrayofbools.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testarrayofbools(at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.testarrayofbools.v); return o == 0 ? true : _accessor.directRead(of: Bool.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var testarrayofbools: [Bool] { return _accessor.getVector(at: VTOFFSET.testarrayofbools.v) ?? [] }
+  public var testarrayofbools: FlatbufferVector<Bool> { return _accessor.vector(at: VTOFFSET.testarrayofbools.v, byteSize: 1) }
   public func mutate(testarrayofbools: Bool, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.testarrayofbools.v); return _accessor.directMutate(testarrayofbools, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToTestarrayofbools<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testarrayofbools.v, body: body) }
+  public func withUnsafePointerToTestarrayofbools<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testarrayofbools.v, body: body) }
   public var testf: Float32 { let o = _accessor.offset(VTOFFSET.testf.v); return o == 0 ? 3.14159 : _accessor.readBuffer(of: Float32.self, at: o) }
   @discardableResult public func mutate(testf: Float32) -> Bool {let o = _accessor.offset(VTOFFSET.testf.v);  return _accessor.mutate(testf, index: o) }
   public var testf2: Float32 { let o = _accessor.offset(VTOFFSET.testf2.v); return o == 0 ? 3.0 : _accessor.readBuffer(of: Float32.self, at: o) }
   @discardableResult public func mutate(testf2: Float32) -> Bool {let o = _accessor.offset(VTOFFSET.testf2.v);  return _accessor.mutate(testf2, index: o) }
   public var testf3: Float32 { let o = _accessor.offset(VTOFFSET.testf3.v); return o == 0 ? 0.0 : _accessor.readBuffer(of: Float32.self, at: o) }
   @discardableResult public func mutate(testf3: Float32) -> Bool {let o = _accessor.offset(VTOFFSET.testf3.v);  return _accessor.mutate(testf3, index: o) }
-  public var hasTestarrayofstring2: Bool { let o = _accessor.offset(VTOFFSET.testarrayofstring2.v); return o == 0 ? false : true }
-  public var testarrayofstring2Count: Int32 { let o = _accessor.offset(VTOFFSET.testarrayofstring2.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testarrayofstring2(at index: Int32) -> String? { let o = _accessor.offset(VTOFFSET.testarrayofstring2.v); return o == 0 ? nil : _accessor.directString(at: _accessor.vector(at: o) + index * 4) }
-  public var hasTestarrayofsortedstruct: Bool { let o = _accessor.offset(VTOFFSET.testarrayofsortedstruct.v); return o == 0 ? false : true }
-  public var testarrayofsortedstructCount: Int32 { let o = _accessor.offset(VTOFFSET.testarrayofsortedstruct.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testarrayofsortedstruct(at index: Int32) -> MyGame_Example_Ability? { let o = _accessor.offset(VTOFFSET.testarrayofsortedstruct.v); return o == 0 ? nil : _accessor.directRead(of: MyGame_Example_Ability.self, offset: _accessor.vector(at: o) + index * 8) }
-  public func mutableTestarrayofsortedstruct(at index: Int32) -> MyGame_Example_Ability_Mutable? { let o = _accessor.offset(VTOFFSET.testarrayofsortedstruct.v); return o == 0 ? nil : MyGame_Example_Ability_Mutable(_accessor.bb, o: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToTestarrayofsortedstruct<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testarrayofsortedstruct.v, body: body) }
-  public var hasFlex: Bool { let o = _accessor.offset(VTOFFSET.flex.v); return o == 0 ? false : true }
-  public var flexCount: Int32 { let o = _accessor.offset(VTOFFSET.flex.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func flex(at index: Int32) -> UInt8 { let o = _accessor.offset(VTOFFSET.flex.v); return o == 0 ? 0 : _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var flex: [UInt8] { return _accessor.getVector(at: VTOFFSET.flex.v) ?? [] }
+  public var testarrayofstring2: FlatbufferVector<String?> { return _accessor.vector(at: VTOFFSET.testarrayofstring2.v, byteSize: 4) }
+  public var testarrayofsortedstruct: FlatbufferVector<MyGame_Example_Ability> { return _accessor.vector(at: VTOFFSET.testarrayofsortedstruct.v, byteSize: 8) }
+  public var mutableTestarrayofsortedstruct: FlatbufferVector<MyGame_Example_Ability_Mutable> { return _accessor.vector(at: VTOFFSET.testarrayofsortedstruct.v, byteSize: 8) }
+  public func withUnsafePointerToTestarrayofsortedstruct<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testarrayofsortedstruct.v, body: body) }
+  public var flex: FlatbufferVector<UInt8> { return _accessor.vector(at: VTOFFSET.flex.v, byteSize: 1) }
   public func mutate(flex: UInt8, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.flex.v); return _accessor.directMutate(flex, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToFlex<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.flex.v, body: body) }
-  public var hasTest5: Bool { let o = _accessor.offset(VTOFFSET.test5.v); return o == 0 ? false : true }
-  public var test5Count: Int32 { let o = _accessor.offset(VTOFFSET.test5.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func test5(at index: Int32) -> MyGame_Example_Test? { let o = _accessor.offset(VTOFFSET.test5.v); return o == 0 ? nil : _accessor.directRead(of: MyGame_Example_Test.self, offset: _accessor.vector(at: o) + index * 4) }
-  public func mutableTest5(at index: Int32) -> MyGame_Example_Test_Mutable? { let o = _accessor.offset(VTOFFSET.test5.v); return o == 0 ? nil : MyGame_Example_Test_Mutable(_accessor.bb, o: _accessor.vector(at: o) + index * 4) }
-  public func withUnsafePointerToTest5<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.test5.v, body: body) }
-  public var hasVectorOfLongs: Bool { let o = _accessor.offset(VTOFFSET.vectorOfLongs.v); return o == 0 ? false : true }
-  public var vectorOfLongsCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfLongs.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfLongs(at index: Int32) -> Int64 { let o = _accessor.offset(VTOFFSET.vectorOfLongs.v); return o == 0 ? 0 : _accessor.directRead(of: Int64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vectorOfLongs: [Int64] { return _accessor.getVector(at: VTOFFSET.vectorOfLongs.v) ?? [] }
+  public func withUnsafePointerToFlex<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.flex.v, body: body) }
+  public var test5: FlatbufferVector<MyGame_Example_Test> { return _accessor.vector(at: VTOFFSET.test5.v, byteSize: 4) }
+  public var mutableTest5: FlatbufferVector<MyGame_Example_Test_Mutable> { return _accessor.vector(at: VTOFFSET.test5.v, byteSize: 4) }
+  public func withUnsafePointerToTest5<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.test5.v, body: body) }
+  public var vectorOfLongs: FlatbufferVector<Int64> { return _accessor.vector(at: VTOFFSET.vectorOfLongs.v, byteSize: 8) }
   public func mutate(vectorOfLongs: Int64, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vectorOfLongs.v); return _accessor.directMutate(vectorOfLongs, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVectorOfLongs<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfLongs.v, body: body) }
-  public var hasVectorOfDoubles: Bool { let o = _accessor.offset(VTOFFSET.vectorOfDoubles.v); return o == 0 ? false : true }
-  public var vectorOfDoublesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfDoubles.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfDoubles(at index: Int32) -> Double { let o = _accessor.offset(VTOFFSET.vectorOfDoubles.v); return o == 0 ? 0 : _accessor.directRead(of: Double.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vectorOfDoubles: [Double] { return _accessor.getVector(at: VTOFFSET.vectorOfDoubles.v) ?? [] }
+  public func withUnsafePointerToVectorOfLongs<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfLongs.v, body: body) }
+  public var vectorOfDoubles: FlatbufferVector<Double> { return _accessor.vector(at: VTOFFSET.vectorOfDoubles.v, byteSize: 8) }
   public func mutate(vectorOfDoubles: Double, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vectorOfDoubles.v); return _accessor.directMutate(vectorOfDoubles, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVectorOfDoubles<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfDoubles.v, body: body) }
+  public func withUnsafePointerToVectorOfDoubles<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfDoubles.v, body: body) }
   public var parentNamespaceTest: MyGame_InParentNamespace? { let o = _accessor.offset(VTOFFSET.parentNamespaceTest.v); return o == 0 ? nil : MyGame_InParentNamespace(_accessor.bb, o: _accessor.indirect(o + _accessor.position)) }
-  public var hasVectorOfReferrables: Bool { let o = _accessor.offset(VTOFFSET.vectorOfReferrables.v); return o == 0 ? false : true }
-  public var vectorOfReferrablesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfReferrables.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfReferrables(at index: Int32) -> MyGame_Example_Referrable? { let o = _accessor.offset(VTOFFSET.vectorOfReferrables.v); return o == 0 ? nil : MyGame_Example_Referrable(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 4)) }
+  public var vectorOfReferrables: FlatbufferVector<MyGame_Example_Referrable> { return _accessor.vector(at: VTOFFSET.vectorOfReferrables.v, byteSize: 4) }
   public func vectorOfReferrablesBy(key: UInt64) -> MyGame_Example_Referrable? { let o = _accessor.offset(VTOFFSET.vectorOfReferrables.v); return o == 0 ? nil : MyGame_Example_Referrable.lookupByKey(vector: _accessor.vector(at: o), key: key, fbb: _accessor.bb) }
   public var singleWeakReference: UInt64 { let o = _accessor.offset(VTOFFSET.singleWeakReference.v); return o == 0 ? 0 : _accessor.readBuffer(of: UInt64.self, at: o) }
   @discardableResult public func mutate(singleWeakReference: UInt64) -> Bool {let o = _accessor.offset(VTOFFSET.singleWeakReference.v);  return _accessor.mutate(singleWeakReference, index: o) }
-  public var hasVectorOfWeakReferences: Bool { let o = _accessor.offset(VTOFFSET.vectorOfWeakReferences.v); return o == 0 ? false : true }
-  public var vectorOfWeakReferencesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfWeakReferences.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfWeakReferences(at index: Int32) -> UInt64 { let o = _accessor.offset(VTOFFSET.vectorOfWeakReferences.v); return o == 0 ? 0 : _accessor.directRead(of: UInt64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vectorOfWeakReferences: [UInt64] { return _accessor.getVector(at: VTOFFSET.vectorOfWeakReferences.v) ?? [] }
+  public var vectorOfWeakReferences: FlatbufferVector<UInt64> { return _accessor.vector(at: VTOFFSET.vectorOfWeakReferences.v, byteSize: 8) }
   public func mutate(vectorOfWeakReferences: UInt64, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vectorOfWeakReferences.v); return _accessor.directMutate(vectorOfWeakReferences, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVectorOfWeakReferences<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfWeakReferences.v, body: body) }
-  public var hasVectorOfStrongReferrables: Bool { let o = _accessor.offset(VTOFFSET.vectorOfStrongReferrables.v); return o == 0 ? false : true }
-  public var vectorOfStrongReferrablesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfStrongReferrables.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfStrongReferrables(at index: Int32) -> MyGame_Example_Referrable? { let o = _accessor.offset(VTOFFSET.vectorOfStrongReferrables.v); return o == 0 ? nil : MyGame_Example_Referrable(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 4)) }
+  public func withUnsafePointerToVectorOfWeakReferences<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfWeakReferences.v, body: body) }
+  public var vectorOfStrongReferrables: FlatbufferVector<MyGame_Example_Referrable> { return _accessor.vector(at: VTOFFSET.vectorOfStrongReferrables.v, byteSize: 4) }
   public func vectorOfStrongReferrablesBy(key: UInt64) -> MyGame_Example_Referrable? { let o = _accessor.offset(VTOFFSET.vectorOfStrongReferrables.v); return o == 0 ? nil : MyGame_Example_Referrable.lookupByKey(vector: _accessor.vector(at: o), key: key, fbb: _accessor.bb) }
   public var coOwningReference: UInt64 { let o = _accessor.offset(VTOFFSET.coOwningReference.v); return o == 0 ? 0 : _accessor.readBuffer(of: UInt64.self, at: o) }
   @discardableResult public func mutate(coOwningReference: UInt64) -> Bool {let o = _accessor.offset(VTOFFSET.coOwningReference.v);  return _accessor.mutate(coOwningReference, index: o) }
-  public var hasVectorOfCoOwningReferences: Bool { let o = _accessor.offset(VTOFFSET.vectorOfCoOwningReferences.v); return o == 0 ? false : true }
-  public var vectorOfCoOwningReferencesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfCoOwningReferences.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfCoOwningReferences(at index: Int32) -> UInt64 { let o = _accessor.offset(VTOFFSET.vectorOfCoOwningReferences.v); return o == 0 ? 0 : _accessor.directRead(of: UInt64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vectorOfCoOwningReferences: [UInt64] { return _accessor.getVector(at: VTOFFSET.vectorOfCoOwningReferences.v) ?? [] }
+  public var vectorOfCoOwningReferences: FlatbufferVector<UInt64> { return _accessor.vector(at: VTOFFSET.vectorOfCoOwningReferences.v, byteSize: 8) }
   public func mutate(vectorOfCoOwningReferences: UInt64, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vectorOfCoOwningReferences.v); return _accessor.directMutate(vectorOfCoOwningReferences, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVectorOfCoOwningReferences<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfCoOwningReferences.v, body: body) }
+  public func withUnsafePointerToVectorOfCoOwningReferences<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfCoOwningReferences.v, body: body) }
   public var nonOwningReference: UInt64 { let o = _accessor.offset(VTOFFSET.nonOwningReference.v); return o == 0 ? 0 : _accessor.readBuffer(of: UInt64.self, at: o) }
   @discardableResult public func mutate(nonOwningReference: UInt64) -> Bool {let o = _accessor.offset(VTOFFSET.nonOwningReference.v);  return _accessor.mutate(nonOwningReference, index: o) }
-  public var hasVectorOfNonOwningReferences: Bool { let o = _accessor.offset(VTOFFSET.vectorOfNonOwningReferences.v); return o == 0 ? false : true }
-  public var vectorOfNonOwningReferencesCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfNonOwningReferences.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfNonOwningReferences(at index: Int32) -> UInt64 { let o = _accessor.offset(VTOFFSET.vectorOfNonOwningReferences.v); return o == 0 ? 0 : _accessor.directRead(of: UInt64.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vectorOfNonOwningReferences: [UInt64] { return _accessor.getVector(at: VTOFFSET.vectorOfNonOwningReferences.v) ?? [] }
+  public var vectorOfNonOwningReferences: FlatbufferVector<UInt64> { return _accessor.vector(at: VTOFFSET.vectorOfNonOwningReferences.v, byteSize: 8) }
   public func mutate(vectorOfNonOwningReferences: UInt64, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vectorOfNonOwningReferences.v); return _accessor.directMutate(vectorOfNonOwningReferences, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVectorOfNonOwningReferences<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfNonOwningReferences.v, body: body) }
+  public func withUnsafePointerToVectorOfNonOwningReferences<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vectorOfNonOwningReferences.v, body: body) }
   public var anyUniqueType: MyGame_Example_AnyUniqueAliases { let o = _accessor.offset(VTOFFSET.anyUniqueType.v); return o == 0 ? .none_ : MyGame_Example_AnyUniqueAliases(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .none_ }
   public func anyUnique<T: FlatbuffersInitializable>(type: T.Type) -> T? { let o = _accessor.offset(VTOFFSET.anyUnique.v); return o == 0 ? nil : _accessor.union(o) }
   public var anyAmbiguousType: MyGame_Example_AnyAmbiguousAliases { let o = _accessor.offset(VTOFFSET.anyAmbiguousType.v); return o == 0 ? .none_ : MyGame_Example_AnyAmbiguousAliases(rawValue: _accessor.readBuffer(of: UInt8.self, at: o)) ?? .none_ }
   public func anyAmbiguous<T: FlatbuffersInitializable>(type: T.Type) -> T? { let o = _accessor.offset(VTOFFSET.anyAmbiguous.v); return o == 0 ? nil : _accessor.union(o) }
-  public var hasVectorOfEnums: Bool { let o = _accessor.offset(VTOFFSET.vectorOfEnums.v); return o == 0 ? false : true }
-  public var vectorOfEnumsCount: Int32 { let o = _accessor.offset(VTOFFSET.vectorOfEnums.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vectorOfEnums(at index: Int32) -> MyGame_Example_Color? { let o = _accessor.offset(VTOFFSET.vectorOfEnums.v); return o == 0 ? MyGame_Example_Color.red : MyGame_Example_Color(rawValue: _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1)) }
+  public var vectorOfEnums: FlatbufferVector<MyGame_Example_Color> { return _accessor.vector(at: VTOFFSET.vectorOfEnums.v, byteSize: 1) }
   public var signedEnum: MyGame_Example_Race { let o = _accessor.offset(VTOFFSET.signedEnum.v); return o == 0 ? .none_ : MyGame_Example_Race(rawValue: _accessor.readBuffer(of: Int8.self, at: o)) ?? .none_ }
   @discardableResult public func mutate(signedEnum: MyGame_Example_Race) -> Bool {let o = _accessor.offset(VTOFFSET.signedEnum.v);  return _accessor.mutate(signedEnum.rawValue, index: o) }
-  public var hasTestrequirednestedflatbuffer: Bool { let o = _accessor.offset(VTOFFSET.testrequirednestedflatbuffer.v); return o == 0 ? false : true }
-  public var testrequirednestedflatbufferCount: Int32 { let o = _accessor.offset(VTOFFSET.testrequirednestedflatbuffer.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func testrequirednestedflatbuffer(at index: Int32) -> UInt8 { let o = _accessor.offset(VTOFFSET.testrequirednestedflatbuffer.v); return o == 0 ? 0 : _accessor.directRead(of: UInt8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var testrequirednestedflatbuffer: [UInt8] { return _accessor.getVector(at: VTOFFSET.testrequirednestedflatbuffer.v) ?? [] }
+  public var testrequirednestedflatbuffer: FlatbufferVector<UInt8> { return _accessor.vector(at: VTOFFSET.testrequirednestedflatbuffer.v, byteSize: 1) }
   public func mutate(testrequirednestedflatbuffer: UInt8, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.testrequirednestedflatbuffer.v); return _accessor.directMutate(testrequirednestedflatbuffer, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToTestrequirednestedflatbuffer<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testrequirednestedflatbuffer.v, body: body) }
-  public var hasScalarKeySortedTables: Bool { let o = _accessor.offset(VTOFFSET.scalarKeySortedTables.v); return o == 0 ? false : true }
-  public var scalarKeySortedTablesCount: Int32 { let o = _accessor.offset(VTOFFSET.scalarKeySortedTables.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func scalarKeySortedTables(at index: Int32) -> MyGame_Example_Stat? { let o = _accessor.offset(VTOFFSET.scalarKeySortedTables.v); return o == 0 ? nil : MyGame_Example_Stat(_accessor.bb, o: _accessor.indirect(_accessor.vector(at: o) + index * 4)) }
+  public func withUnsafePointerToTestrequirednestedflatbuffer<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.testrequirednestedflatbuffer.v, body: body) }
+  public var scalarKeySortedTables: FlatbufferVector<MyGame_Example_Stat> { return _accessor.vector(at: VTOFFSET.scalarKeySortedTables.v, byteSize: 4) }
   public func scalarKeySortedTablesBy(key: UInt16) -> MyGame_Example_Stat? { let o = _accessor.offset(VTOFFSET.scalarKeySortedTables.v); return o == 0 ? nil : MyGame_Example_Stat.lookupByKey(vector: _accessor.vector(at: o), key: key, fbb: _accessor.bb) }
   public var nativeInline: MyGame_Example_Test? { let o = _accessor.offset(VTOFFSET.nativeInline.v); return o == 0 ? nil : _accessor.readBuffer(of: MyGame_Example_Test.self, at: o) }
   public var mutableNativeInline: MyGame_Example_Test_Mutable? { let o = _accessor.offset(VTOFFSET.nativeInline.v); return o == 0 ? nil : MyGame_Example_Test_Mutable(_accessor.bb, o: o + _accessor.position) }
@@ -1604,9 +1554,8 @@ public struct MyGame_Example_Monster: FlatBufferObject, Verifiable, ObjectAPIPac
     let __inventory = builder.createVector(obj.inventory)
     let __test = obj.test?.pack(builder: &builder) ?? Offset()
     MyGame_Example_Monster.startVectorOfTest4(obj.test4.count, in: &builder)
-    for i in obj.test4 {
-      guard let _o = i else { continue }
-      builder.create(struct: _o)
+    for val in obj.test4 {
+      builder.create(struct: val)
     }
     let __test4 = builder.endVector(len: obj.test4.count)
     let __testarrayofstring = builder.createVector(ofStrings: obj.testarrayofstring.compactMap({ $0 }) )
@@ -1621,16 +1570,14 @@ public struct MyGame_Example_Monster: FlatBufferObject, Verifiable, ObjectAPIPac
     let __testarrayofbools = builder.createVector(obj.testarrayofbools)
     let __testarrayofstring2 = builder.createVector(ofStrings: obj.testarrayofstring2.compactMap({ $0 }) )
     MyGame_Example_Monster.startVectorOfTestarrayofsortedstruct(obj.testarrayofsortedstruct.count, in: &builder)
-    for i in obj.testarrayofsortedstruct {
-      guard let _o = i else { continue }
-      builder.create(struct: _o)
+    for val in obj.testarrayofsortedstruct {
+      builder.create(struct: val)
     }
     let __testarrayofsortedstruct = builder.endVector(len: obj.testarrayofsortedstruct.count)
     let __flex = builder.createVector(obj.flex)
     MyGame_Example_Monster.startVectorOfTest5(obj.test5.count, in: &builder)
-    for i in obj.test5 {
-      guard let _o = i else { continue }
-      builder.create(struct: _o)
+    for val in obj.test5 {
+      builder.create(struct: val)
     }
     let __test5 = builder.endVector(len: obj.test5.count)
     let __vectorOfLongs = builder.createVector(obj.vectorOfLongs)
@@ -1904,9 +1851,7 @@ extension MyGame_Example_Monster: Encodable {
       try container.encodeIfPresent(hp, forKey: .hp)
     }
     try container.encodeIfPresent(name, forKey: .name)
-    if inventoryCount > 0 {
-      try container.encodeIfPresent(inventory, forKey: .inventory)
-    }
+    try container.encodeIfPresent(inventory, forKey: .inventory)
     if color != .blue {
       try container.encodeIfPresent(color, forKey: .color)
     }
@@ -1925,31 +1870,11 @@ extension MyGame_Example_Monster: Encodable {
       try container.encodeIfPresent(_v, forKey: .test)
     default: break;
     }
-    if test4Count > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .test4)
-      for index in 0..<test4Count {
-        guard let type = test4(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if testarrayofstringCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .testarrayofstring)
-      for index in 0..<testarrayofstringCount {
-        guard let type = testarrayofstring(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if testarrayoftablesCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .testarrayoftables)
-      for index in 0..<testarrayoftablesCount {
-        guard let type = testarrayoftables(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(test4, forKey: .test4)
+    try container.encodeIfPresent(testarrayofstring, forKey: .testarrayofstring)
+    try container.encodeIfPresent(testarrayoftables, forKey: .testarrayoftables)
     try container.encodeIfPresent(enemy, forKey: .enemy)
-    if testnestedflatbufferCount > 0 {
-      try container.encodeIfPresent(testnestedflatbuffer, forKey: .testnestedflatbuffer)
-    }
+    try container.encodeIfPresent(testnestedflatbuffer, forKey: .testnestedflatbuffer)
     try container.encodeIfPresent(testempty, forKey: .testempty)
     if testbool != false {
       try container.encodeIfPresent(testbool, forKey: .testbool)
@@ -1978,9 +1903,7 @@ extension MyGame_Example_Monster: Encodable {
     if testhashu64Fnv1a != 0 {
       try container.encodeIfPresent(testhashu64Fnv1a, forKey: .testhashu64Fnv1a)
     }
-    if testarrayofboolsCount > 0 {
-      try container.encodeIfPresent(testarrayofbools, forKey: .testarrayofbools)
-    }
+    try container.encodeIfPresent(testarrayofbools, forKey: .testarrayofbools)
     if testf != 3.14159 {
       try container.encodeIfPresent(testf, forKey: .testf)
     }
@@ -1990,69 +1913,27 @@ extension MyGame_Example_Monster: Encodable {
     if testf3 != 0.0 {
       try container.encodeIfPresent(testf3, forKey: .testf3)
     }
-    if testarrayofstring2Count > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .testarrayofstring2)
-      for index in 0..<testarrayofstring2Count {
-        guard let type = testarrayofstring2(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if testarrayofsortedstructCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .testarrayofsortedstruct)
-      for index in 0..<testarrayofsortedstructCount {
-        guard let type = testarrayofsortedstruct(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if flexCount > 0 {
-      try container.encodeIfPresent(flex, forKey: .flex)
-    }
-    if test5Count > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .test5)
-      for index in 0..<test5Count {
-        guard let type = test5(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
-    if vectorOfLongsCount > 0 {
-      try container.encodeIfPresent(vectorOfLongs, forKey: .vectorOfLongs)
-    }
-    if vectorOfDoublesCount > 0 {
-      try container.encodeIfPresent(vectorOfDoubles, forKey: .vectorOfDoubles)
-    }
+    try container.encodeIfPresent(testarrayofstring2, forKey: .testarrayofstring2)
+    try container.encodeIfPresent(testarrayofsortedstruct, forKey: .testarrayofsortedstruct)
+    try container.encodeIfPresent(flex, forKey: .flex)
+    try container.encodeIfPresent(test5, forKey: .test5)
+    try container.encodeIfPresent(vectorOfLongs, forKey: .vectorOfLongs)
+    try container.encodeIfPresent(vectorOfDoubles, forKey: .vectorOfDoubles)
     try container.encodeIfPresent(parentNamespaceTest, forKey: .parentNamespaceTest)
-    if vectorOfReferrablesCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .vectorOfReferrables)
-      for index in 0..<vectorOfReferrablesCount {
-        guard let type = vectorOfReferrables(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(vectorOfReferrables, forKey: .vectorOfReferrables)
     if singleWeakReference != 0 {
       try container.encodeIfPresent(singleWeakReference, forKey: .singleWeakReference)
     }
-    if vectorOfWeakReferencesCount > 0 {
-      try container.encodeIfPresent(vectorOfWeakReferences, forKey: .vectorOfWeakReferences)
-    }
-    if vectorOfStrongReferrablesCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .vectorOfStrongReferrables)
-      for index in 0..<vectorOfStrongReferrablesCount {
-        guard let type = vectorOfStrongReferrables(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(vectorOfWeakReferences, forKey: .vectorOfWeakReferences)
+    try container.encodeIfPresent(vectorOfStrongReferrables, forKey: .vectorOfStrongReferrables)
     if coOwningReference != 0 {
       try container.encodeIfPresent(coOwningReference, forKey: .coOwningReference)
     }
-    if vectorOfCoOwningReferencesCount > 0 {
-      try container.encodeIfPresent(vectorOfCoOwningReferences, forKey: .vectorOfCoOwningReferences)
-    }
+    try container.encodeIfPresent(vectorOfCoOwningReferences, forKey: .vectorOfCoOwningReferences)
     if nonOwningReference != 0 {
       try container.encodeIfPresent(nonOwningReference, forKey: .nonOwningReference)
     }
-    if vectorOfNonOwningReferencesCount > 0 {
-      try container.encodeIfPresent(vectorOfNonOwningReferences, forKey: .vectorOfNonOwningReferences)
-    }
+    try container.encodeIfPresent(vectorOfNonOwningReferences, forKey: .vectorOfNonOwningReferences)
     if anyUniqueType != .none_ {
       try container.encodeIfPresent(anyUniqueType, forKey: .anyUniqueType)
     }
@@ -2083,26 +1964,12 @@ extension MyGame_Example_Monster: Encodable {
       try container.encodeIfPresent(_v, forKey: .anyAmbiguous)
     default: break;
     }
-    if vectorOfEnumsCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .vectorOfEnums)
-      for index in 0..<vectorOfEnumsCount {
-        guard let type = vectorOfEnums(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(vectorOfEnums, forKey: .vectorOfEnums)
     if signedEnum != .none_ {
       try container.encodeIfPresent(signedEnum, forKey: .signedEnum)
     }
-    if testrequirednestedflatbufferCount > 0 {
-      try container.encodeIfPresent(testrequirednestedflatbuffer, forKey: .testrequirednestedflatbuffer)
-    }
-    if scalarKeySortedTablesCount > 0 {
-      var contentEncoder = container.nestedUnkeyedContainer(forKey: .scalarKeySortedTables)
-      for index in 0..<scalarKeySortedTablesCount {
-        guard let type = scalarKeySortedTables(at: index) else { continue }
-        try contentEncoder.encode(type)
-      }
-    }
+    try container.encodeIfPresent(testrequirednestedflatbuffer, forKey: .testrequirednestedflatbuffer)
+    try container.encodeIfPresent(scalarKeySortedTables, forKey: .scalarKeySortedTables)
     try container.encodeIfPresent(nativeInline, forKey: .nativeInline)
     if longEnumNonEnumDefault != .longone {
       try container.encodeIfPresent(longEnumNonEnumDefault, forKey: .longEnumNonEnumDefault)
@@ -2146,7 +2013,7 @@ public class MyGame_Example_MonsterT: NativeObject {
   public var inventory: [UInt8]
   public var color: MyGame_Example_Color
   public var test: MyGame_Example_Any_Union?
-  public var test4: [MyGame_Example_Test?]
+  public var test4: [MyGame_Example_Test]
   public var testarrayofstring: [String?]
   public var testarrayoftables: [MyGame_Example_MonsterT?]
   public var enemy: MyGame_Example_MonsterT?
@@ -2166,9 +2033,9 @@ public class MyGame_Example_MonsterT: NativeObject {
   public var testf2: Float32
   public var testf3: Float32
   public var testarrayofstring2: [String?]
-  public var testarrayofsortedstruct: [MyGame_Example_Ability?]
+  public var testarrayofsortedstruct: [MyGame_Example_Ability]
   public var flex: [UInt8]
-  public var test5: [MyGame_Example_Test?]
+  public var test5: [MyGame_Example_Test]
   public var vectorOfLongs: [Int64]
   public var vectorOfDoubles: [Double]
   public var parentNamespaceTest: MyGame_InParentNamespaceT?
@@ -2204,9 +2071,7 @@ public class MyGame_Example_MonsterT: NativeObject {
     hp = _t.hp
     name = _t.name
     inventory = []
-    for index in 0..<_t.inventoryCount {
-        inventory.append(_t.inventory(at: index))
-    }
+    inventory.append(contentsOf: _t.inventory)
     color = _t.color
     switch _t.testType {
     case .monster:
@@ -2221,24 +2086,17 @@ public class MyGame_Example_MonsterT: NativeObject {
     default: break
     }
     test4 = []
-    for index in 0..<_t.test4Count {
-        test4.append(_t.test4(at: index))
-    }
+    test4.append(contentsOf: _t.test4)
     testarrayofstring = []
-    for index in 0..<_t.testarrayofstringCount {
-        testarrayofstring.append(_t.testarrayofstring(at: index))
-    }
+    testarrayofstring.append(contentsOf: _t.testarrayofstring)
     testarrayoftables = []
-    for index in 0..<_t.testarrayoftablesCount {
-        var __v_ = _t.testarrayoftables(at: index)
-        testarrayoftables.append(__v_?.unpack())
+    for var val in _t.testarrayoftables{
+        testarrayoftables.append(val.unpack())
     }
     var __enemy = _t.enemy
     enemy = __enemy?.unpack()
     testnestedflatbuffer = []
-    for index in 0..<_t.testnestedflatbufferCount {
-        testnestedflatbuffer.append(_t.testnestedflatbuffer(at: index))
-    }
+    testnestedflatbuffer.append(contentsOf: _t.testnestedflatbuffer)
     var __testempty = _t.testempty
     testempty = __testempty?.unpack()
     testbool = _t.testbool
@@ -2251,63 +2109,41 @@ public class MyGame_Example_MonsterT: NativeObject {
     testhashs64Fnv1a = _t.testhashs64Fnv1a
     testhashu64Fnv1a = _t.testhashu64Fnv1a
     testarrayofbools = []
-    for index in 0..<_t.testarrayofboolsCount {
-        testarrayofbools.append(_t.testarrayofbools(at: index))
-    }
+    testarrayofbools.append(contentsOf: _t.testarrayofbools)
     testf = _t.testf
     testf2 = _t.testf2
     testf3 = _t.testf3
     testarrayofstring2 = []
-    for index in 0..<_t.testarrayofstring2Count {
-        testarrayofstring2.append(_t.testarrayofstring2(at: index))
-    }
+    testarrayofstring2.append(contentsOf: _t.testarrayofstring2)
     testarrayofsortedstruct = []
-    for index in 0..<_t.testarrayofsortedstructCount {
-        testarrayofsortedstruct.append(_t.testarrayofsortedstruct(at: index))
-    }
+    testarrayofsortedstruct.append(contentsOf: _t.testarrayofsortedstruct)
     flex = []
-    for index in 0..<_t.flexCount {
-        flex.append(_t.flex(at: index))
-    }
+    flex.append(contentsOf: _t.flex)
     test5 = []
-    for index in 0..<_t.test5Count {
-        test5.append(_t.test5(at: index))
-    }
+    test5.append(contentsOf: _t.test5)
     vectorOfLongs = []
-    for index in 0..<_t.vectorOfLongsCount {
-        vectorOfLongs.append(_t.vectorOfLongs(at: index))
-    }
+    vectorOfLongs.append(contentsOf: _t.vectorOfLongs)
     vectorOfDoubles = []
-    for index in 0..<_t.vectorOfDoublesCount {
-        vectorOfDoubles.append(_t.vectorOfDoubles(at: index))
-    }
+    vectorOfDoubles.append(contentsOf: _t.vectorOfDoubles)
     var __parentNamespaceTest = _t.parentNamespaceTest
     parentNamespaceTest = __parentNamespaceTest?.unpack()
     vectorOfReferrables = []
-    for index in 0..<_t.vectorOfReferrablesCount {
-        var __v_ = _t.vectorOfReferrables(at: index)
-        vectorOfReferrables.append(__v_?.unpack())
+    for var val in _t.vectorOfReferrables{
+        vectorOfReferrables.append(val.unpack())
     }
     singleWeakReference = _t.singleWeakReference
     vectorOfWeakReferences = []
-    for index in 0..<_t.vectorOfWeakReferencesCount {
-        vectorOfWeakReferences.append(_t.vectorOfWeakReferences(at: index))
-    }
+    vectorOfWeakReferences.append(contentsOf: _t.vectorOfWeakReferences)
     vectorOfStrongReferrables = []
-    for index in 0..<_t.vectorOfStrongReferrablesCount {
-        var __v_ = _t.vectorOfStrongReferrables(at: index)
-        vectorOfStrongReferrables.append(__v_?.unpack())
+    for var val in _t.vectorOfStrongReferrables{
+        vectorOfStrongReferrables.append(val.unpack())
     }
     coOwningReference = _t.coOwningReference
     vectorOfCoOwningReferences = []
-    for index in 0..<_t.vectorOfCoOwningReferencesCount {
-        vectorOfCoOwningReferences.append(_t.vectorOfCoOwningReferences(at: index))
-    }
+    vectorOfCoOwningReferences.append(contentsOf: _t.vectorOfCoOwningReferences)
     nonOwningReference = _t.nonOwningReference
     vectorOfNonOwningReferences = []
-    for index in 0..<_t.vectorOfNonOwningReferencesCount {
-        vectorOfNonOwningReferences.append(_t.vectorOfNonOwningReferences(at: index))
-    }
+    vectorOfNonOwningReferences.append(contentsOf: _t.vectorOfNonOwningReferences)
     switch _t.anyUniqueType {
     case .m:
       var _v = _t.anyUnique(type: MyGame_Example_Monster.self)
@@ -2333,18 +2169,13 @@ public class MyGame_Example_MonsterT: NativeObject {
     default: break
     }
     vectorOfEnums = []
-    for index in 0..<_t.vectorOfEnumsCount {
-        vectorOfEnums.append(_t.vectorOfEnums(at: index)!)
-    }
+    vectorOfEnums.append(contentsOf: _t.vectorOfEnums)
     signedEnum = _t.signedEnum
     testrequirednestedflatbuffer = []
-    for index in 0..<_t.testrequirednestedflatbufferCount {
-        testrequirednestedflatbuffer.append(_t.testrequirednestedflatbuffer(at: index))
-    }
+    testrequirednestedflatbuffer.append(contentsOf: _t.testrequirednestedflatbuffer)
     scalarKeySortedTables = []
-    for index in 0..<_t.scalarKeySortedTablesCount {
-        var __v_ = _t.scalarKeySortedTables(at: index)
-        scalarKeySortedTables.append(__v_?.unpack())
+    for var val in _t.scalarKeySortedTables{
+        scalarKeySortedTables.append(val.unpack())
     }
     nativeInline = _t.nativeInline
     longEnumNonEnumDefault = _t.longEnumNonEnumDefault
@@ -2420,7 +2251,7 @@ public class MyGame_Example_MonsterT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: MyGame_Example_Monster.self) }
 
 }
-public struct MyGame_Example_TypeAliases: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct MyGame_Example_TypeAliases: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -2468,18 +2299,12 @@ public struct MyGame_Example_TypeAliases: FlatBufferObject, Verifiable, ObjectAP
   @discardableResult public func mutate(f32: Float32) -> Bool {let o = _accessor.offset(VTOFFSET.f32.v);  return _accessor.mutate(f32, index: o) }
   public var f64: Double { let o = _accessor.offset(VTOFFSET.f64.v); return o == 0 ? 0.0 : _accessor.readBuffer(of: Double.self, at: o) }
   @discardableResult public func mutate(f64: Double) -> Bool {let o = _accessor.offset(VTOFFSET.f64.v);  return _accessor.mutate(f64, index: o) }
-  public var hasV8: Bool { let o = _accessor.offset(VTOFFSET.v8.v); return o == 0 ? false : true }
-  public var v8Count: Int32 { let o = _accessor.offset(VTOFFSET.v8.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func v8(at index: Int32) -> Int8 { let o = _accessor.offset(VTOFFSET.v8.v); return o == 0 ? 0 : _accessor.directRead(of: Int8.self, offset: _accessor.vector(at: o) + index * 1) }
-  public var v8: [Int8] { return _accessor.getVector(at: VTOFFSET.v8.v) ?? [] }
+  public var v8: FlatbufferVector<Int8> { return _accessor.vector(at: VTOFFSET.v8.v, byteSize: 1) }
   public func mutate(v8: Int8, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.v8.v); return _accessor.directMutate(v8, index: _accessor.vector(at: o) + index * 1) }
-  public func withUnsafePointerToV8<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.v8.v, body: body) }
-  public var hasVf64: Bool { let o = _accessor.offset(VTOFFSET.vf64.v); return o == 0 ? false : true }
-  public var vf64Count: Int32 { let o = _accessor.offset(VTOFFSET.vf64.v); return o == 0 ? 0 : _accessor.vector(count: o) }
-  public func vf64(at index: Int32) -> Double { let o = _accessor.offset(VTOFFSET.vf64.v); return o == 0 ? 0 : _accessor.directRead(of: Double.self, offset: _accessor.vector(at: o) + index * 8) }
-  public var vf64: [Double] { return _accessor.getVector(at: VTOFFSET.vf64.v) ?? [] }
+  public func withUnsafePointerToV8<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.v8.v, body: body) }
+  public var vf64: FlatbufferVector<Double> { return _accessor.vector(at: VTOFFSET.vf64.v, byteSize: 8) }
   public func mutate(vf64: Double, at index: Int32) -> Bool { let o = _accessor.offset(VTOFFSET.vf64.v); return _accessor.directMutate(vf64, index: _accessor.vector(at: o) + index * 8) }
-  public func withUnsafePointerToVf64<T>(_ body: (UnsafeRawBufferPointer) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vf64.v, body: body) }
+  public func withUnsafePointerToVf64<T>(_ body: (UnsafeRawBufferPointer, Int) throws -> T) rethrows -> T? { return try _accessor.withUnsafePointerToSlice(at: VTOFFSET.vf64.v, body: body) }
   public static func startTypeAliases(_ fbb: inout FlatBufferBuilder) -> UOffset { fbb.startTable(with: 12) }
   public static func add(i8: Int8, _ fbb: inout FlatBufferBuilder) { fbb.add(element: i8, def: 0, at: VTOFFSET.i8.p) }
   public static func add(u8: UInt8, _ fbb: inout FlatBufferBuilder) { fbb.add(element: u8, def: 0, at: VTOFFSET.u8.p) }
@@ -2619,12 +2444,8 @@ extension MyGame_Example_TypeAliases: Encodable {
     if f64 != 0.0 {
       try container.encodeIfPresent(f64, forKey: .f64)
     }
-    if v8Count > 0 {
-      try container.encodeIfPresent(v8, forKey: .v8)
-    }
-    if vf64Count > 0 {
-      try container.encodeIfPresent(vf64, forKey: .vf64)
-    }
+    try container.encodeIfPresent(v8, forKey: .v8)
+    try container.encodeIfPresent(vf64, forKey: .vf64)
   }
 }
 
@@ -2655,13 +2476,9 @@ public class MyGame_Example_TypeAliasesT: NativeObject {
     f32 = _t.f32
     f64 = _t.f64
     v8 = []
-    for index in 0..<_t.v8Count {
-        v8.append(_t.v8(at: index))
-    }
+    v8.append(contentsOf: _t.v8)
     vf64 = []
-    for index in 0..<_t.vf64Count {
-        vf64.append(_t.vf64(at: index))
-    }
+    vf64.append(contentsOf: _t.vf64)
   }
 
   public init() {

tests/swift/fuzzer/CodeGenerationTests/test_import_generated.swift

@@ -8,7 +8,7 @@
 
 @_implementationOnly import FlatBuffers
 
-internal struct Message: FlatBufferObject, Verifiable, ObjectAPIPacker {
+internal struct Message: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   internal var __buffer: ByteBuffer! { return _accessor.bb }

tests/swift/fuzzer/CodeGenerationTests/test_no_include_generated.swift

@@ -2,7 +2,7 @@
 // swiftlint:disable all
 // swiftformat:disable all
 
-public struct BytesCount: NativeStruct, Verifiable, FlatbuffersInitializable, NativeObject {
+public struct BytesCount: NativeStruct, FlatbuffersVectorInitializable, Verifiable, FlatbuffersInitializable, NativeObject {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
 
@@ -45,7 +45,7 @@ extension BytesCount: Encodable {
   }
 }
 
-public struct BytesCount_Mutable: FlatBufferObject {
+public struct BytesCount_Mutable: FlatBufferStruct, FlatbuffersVectorInitializable {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -70,7 +70,7 @@ public struct BytesCount_Mutable: FlatBufferObject {
   }
 }
 
-public struct InternalMessage: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct InternalMessage: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }
@@ -153,7 +153,7 @@ public class InternalMessageT: NativeObject {
   public func serialize() -> ByteBuffer { return serialize(type: InternalMessage.self) }
 
 }
-public struct Message: FlatBufferObject, Verifiable, ObjectAPIPacker {
+public struct Message: FlatBufferTable, FlatbuffersVectorInitializable, Verifiable, ObjectAPIPacker {
 
   static func validateVersion() { FlatBuffersVersion_25_9_23() }
   public var __buffer: ByteBuffer! { return _accessor.bb }

tests/swift/fuzzer/Package.swift

@@ -24,12 +24,12 @@ let package = Package(
     .macOS(.v10_14),
   ],
   dependencies: [
-    .package(path: "../../..")
+    .package(path: "../../.."),
   ],
   targets: [
     .executableTarget(
       name: "fuzzer",
       dependencies: [
-        .product(name: "FlatBuffers", package: "flatbuffers")
-      ])
+        .product(name: "FlatBuffers", package: "flatbuffers"),
+      ]),
   ])