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

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* 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
This commit is contained in:
mustiikhalil
2025-11-05 00:53:59 +01:00
committed by GitHub
parent 78a3d59a65
commit 5fe90a9160
63 changed files with 1554 additions and 1650 deletions
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97
tests/swift/Tests/Flatbuffers/union_vector_generated.swift
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@@ -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
}