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[Swift] Inline arrays (#8755)

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Implements InlineArrays which allow us to use Flatbuffers arrays within
Structs natively, and also implements FlatbufferVectors as a secondary API
when using mutable Structs

Fixes mutations within fixed sizes arrays

Adds tests and remove inout and mutating from generated objects in favor of borrowing

---------

Co-authored-by: Wouter van Oortmerssen <aardappel@gmail.com>
This commit is contained in:
mustiikhalil
2025-11-15 00:33:16 +01:00
committed by GitHub
parent 7150dfb5c4
commit cbf0850828
18 changed files with 995 additions and 359 deletions
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30
samples/monster_generated.swift
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@@ -82,10 +82,7 @@ public struct MyGame_Sample_Vec3: NativeStruct, FlatbuffersVectorInitializable,
private var _z: Float32
public init(_ bb: ByteBuffer, o: Int32) {
let _accessor = Struct(bb: bb, position: o)
_x = _accessor.readBuffer(of: Float32.self, at: 0)
_y = _accessor.readBuffer(of: Float32.self, at: 4)
_z = _accessor.readBuffer(of: Float32.self, at: 8)
self = bb.read(def: Self.self, position: Int(o))
}
public init(x: Float32, y: Float32, z: Float32) {
@@ -100,7 +97,7 @@ public struct MyGame_Sample_Vec3: NativeStruct, FlatbuffersVectorInitializable,
_z = 0.0
}
public init(_ _t: inout MyGame_Sample_Vec3_Mutable) {
public init(_ _t: borrowing MyGame_Sample_Vec3_Mutable) {
_x = _t.x
_y = _t.y
_z = _t.z
@@ -150,10 +147,9 @@ public struct MyGame_Sample_Vec3_Mutable: FlatBufferStruct, FlatbuffersVectorIni
@discardableResult public func mutate(y: Float32) -> Bool { return _accessor.mutate(y, index: 4) }
public var z: Float32 { return _accessor.readBuffer(of: Float32.self, at: 8) }
@discardableResult public func mutate(z: Float32) -> Bool { return _accessor.mutate(z, index: 8) }
public mutating func unpack() -> MyGame_Sample_Vec3 {
return MyGame_Sample_Vec3(&self)
public func unpack() -> MyGame_Sample_Vec3 {
return MyGame_Sample_Vec3(self)
}
public static func pack(_ builder: inout FlatBufferBuilder, obj: inout MyGame_Sample_Vec3?) -> Offset {
guard var obj = obj else { return Offset() }
@@ -249,10 +245,9 @@ public struct MyGame_Sample_Monster: FlatBufferTable, FlatbuffersVectorInitializ
MyGame_Sample_Monster.addVectorOf(path: path, &fbb)
return MyGame_Sample_Monster.endMonster(&fbb, start: __start)
}
public mutating func unpack() -> MyGame_Sample_MonsterT {
return MyGame_Sample_MonsterT(&self)
public func unpack() -> MyGame_Sample_MonsterT {
return MyGame_Sample_MonsterT(self)
}
public static func pack(_ builder: inout FlatBufferBuilder, obj: inout MyGame_Sample_MonsterT?) -> Offset {
guard var obj = obj else { return Offset() }
@@ -372,7 +367,7 @@ public class MyGame_Sample_MonsterT: NativeObject {
public var equipped: MyGame_Sample_EquipmentUnion?
public var path: [MyGame_Sample_Vec3]
public init(_ _t: inout MyGame_Sample_Monster) {
public init(_ _t: borrowing MyGame_Sample_Monster) {
pos = _t.pos
mana = _t.mana
hp = _t.hp
@@ -381,12 +376,12 @@ public class MyGame_Sample_MonsterT: NativeObject {
inventory.append(contentsOf: _t.inventory)
color = _t.color
weapons = []
for var val in _t.weapons{
for val in _t.weapons{
weapons.append(val.unpack())
}
switch _t.equippedType {
case .weapon:
var _v = _t.equipped(type: MyGame_Sample_Weapon.self)
let _v = _t.equipped(type: MyGame_Sample_Weapon.self)
equipped = MyGame_Sample_EquipmentUnion(_v?.unpack(), type: .weapon)
default: break
}
@@ -441,10 +436,9 @@ public struct MyGame_Sample_Weapon: FlatBufferTable, FlatbuffersVectorInitializa
MyGame_Sample_Weapon.add(damage: damage, &fbb)
return MyGame_Sample_Weapon.endWeapon(&fbb, start: __start)
}
public mutating func unpack() -> MyGame_Sample_WeaponT {
return MyGame_Sample_WeaponT(&self)
public func unpack() -> MyGame_Sample_WeaponT {
return MyGame_Sample_WeaponT(self)
}
public static func pack(_ builder: inout FlatBufferBuilder, obj: inout MyGame_Sample_WeaponT?) -> Offset {
guard var obj = obj else { return Offset() }
@@ -493,7 +487,7 @@ public class MyGame_Sample_WeaponT: NativeObject {
public var name: String?
public var damage: Int16
public init(_ _t: inout MyGame_Sample_Weapon) {
public init(_ _t: borrowing MyGame_Sample_Weapon) {
name = _t.name
damage = _t.damage
}