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@Dao
interface UserDao {
@Query("SELECT * FROM users")
fun getAll(): List
}
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@Dao
interface UserDao {
@Query("SELECT * FROM users")
fun getAll(): List
}
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// Generated code with simplified
class UserDao_Impl(private val __db: RoomDatabase) : UserDao {
override fun getAll(): List {
val statement = RoomSQLiteQuery.acquire("SELECT * FROM users", 0)
__db.assertNotSuspendingTransaction()
return query(__db, statement, false, null).use { cursor ->
mutableListOf().apply {
while (cursor.moveToNext()) {
add(User(cursor.getInt(getColumnIndexOrThrow(cursor, "id"))))
}
}
}.also { statement.release() }
}
}
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No content
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import SwiftData
@Model
final class User {
var name: String
init(name: String) {
self.name = name
}
}
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// Generated code with simplified
final class User {
var name: String {
get {
persistentBackingData.getValue(forKey: \.name)
}
set {
persistentBackingData.setValue(
forKey: \.name,
to: newValue
)
}
}
var persistentBackingData: any BackingData { ... }
init(name: String) { … }
}
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6OMPDLUIF1PUFOUJBMPG4XJGU$PEF(FOFSBUJPO
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@Component
interface ApplicationComponent {
fun inject(activity: LoginActivity)
}
class LoginActivity: Activity() {
@Inject
lateinit var loginViewModel: LoginViewModel
}
class LoginViewModel @Inject constructor(
private val userRepository: UserRepository
) {}
class UserRepository @Inject constructor(
private val localDataSource: UserLocalDataSource,
private val remoteDataSource: UserRemoteDataSource
) {}
class UserLocalDataSource @Inject constructor() {}
class UserRemoteDataSource @Inject constructor() {}
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@Component
interface ApplicationComponent {
fun inject(activity: LoginActivity)
}
class LoginActivity: Activity() {
@Inject
lateinit var loginViewModel: LoginViewModel
}
class LoginViewModel @Inject constructor(
private val userRepository: UserRepository
) {}
class UserRepository @Inject constructor(
private val localDataSource: UserLocalDataSource,
private val remoteDataSource: UserRemoteDataSource
) {}
class UserLocalDataSource @Inject constructor() {}
class UserRemoteDataSource @Inject constructor() {}
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@Component
interface ApplicationComponent {
fun inject(activity: LoginActivity)
}
class LoginActivity: Activity() {
@Inject
lateinit var loginViewModel: LoginViewModel
}
class LoginViewModel @Inject constructor(
private val userRepository: UserRepository
) {}
class UserRepository @Inject constructor(
private val localDataSource: UserLocalDataSource,
private val remoteDataSource: UserRemoteDataSource
) {}
class UserLocalDataSource @Inject constructor() {}
class UserRemoteDataSource @Inject constructor() {}
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// Generated code with simplified
class DaggerApplicationComponent : ApplicationComponent {
fun inject(activity: LoginActivity) {
activity.loginViewModel = loginViewModel()
}
private fun loginViewModel() =
LoginViewModel(userRepository())
private fun userRepository() =
UserRepository(
UserLocalDataSource(),
UserRemoteDataSource()
)
}
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9
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9
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Sword
IUUQTHJUIVCDPNSPDLOBNFTXPSE
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No content
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// ComponentApp/AppComponent.swift
@Component
final class AppComponent {
}
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// DataLocal/UserLocalDataSource.swift
@Dependency(registeredTo: AppComponent.self)
struct UserLocalDataSource {
@Injected
init() {}
}
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// DataLocal/UserRemoteDataSource.swift
@Dependency(registeredTo: AppComponent.self)
struct UserRemoteDataSource {
@Injected
init() {}
}
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// DataRepository/UserRepository.swift
@Dependency(registeredTo: AppComponent.self)
struct UserRepository {
private let localDataSource:
UserLocalDataSource
private let remoteDataSource:
UserRemoteDataSource
@Injected
init(
localDataSource: UserLocalDataSource,
remoteDataSource: UserRemoteDataSource
) { … }
}
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// FeatureLogin/LoginViewModel.swift
@Dependency(registeredTo: AppComponent.self)
final class LoginViewModel {
private let userRepository: UserRepository
@Injected
init(userRepository: UserRepository) {
self.userRepository = userRepository
}
}
// FeatureLogin/LoginScreen.swift
struct LoginScreen: View {
let viewModel: LoginViewModel
var body: some View { … }
}
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// SceneRoot/RootScene.swift
struct RootScene: Scene {
private let component = AppComponent()
var body: some Scene {
WindowGroup {
...
}
}
}
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extension AppComponent {
var userLocalDataSource: UserLocalDataSource {
UserLocalDataSource()
}
var userRemoteDataSource: UserRemoteDataSource {
UserRemoteDataSource()
}
var userRepository: UserRepository {
UserRepository(
localDataSource: self.userLocalDataSource,
remoteDataSource: self.userRemoteDataSource
)
}
var loginViewModel: LoginViewModel {
LoginViewModel(userRepository: self.userRepository)
}
}
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public protocol Component: AnyObject {}
@attached(
extension,
conformances: Component
)
public macro Component() =
#externalMacro(
module: "SwordMacros",
type: “ComponentMacro"
)
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public protocol Component: AnyObject {}
@attached(
extension,
conformances: Component
)
public macro Component() =
#externalMacro(
module: "SwordMacros",
type: “ComponentMacro"
)
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public protocol Component: AnyObject {}
@attached(
extension,
conformances: Component
)
public macro Component() =
#externalMacro(
module: "SwordMacros",
type: “ComponentMacro"
)
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struct ComponentMacro: ExtensionMacro {
static func expansion(
of node: AttributeSyntax,
attachedTo declaration: some DeclGroupSyntax,
providingExtensionsOf type: some TypeSyntaxProtocol,
conformingTo protocols: [TypeSyntax],
in context: some MacroExpansionContext
) throws -> [ExtensionDeclSyntax] {
let decl: DeclSyntax = """
extension \(raw: type.trimmedDescription): Sword.Component {
}
"""
let extensionDecl = decl.cast(ExtensionDeclSyntax.self)
return [extensionDecl]
}
}
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struct ComponentMacro: ExtensionMacro {
static func expansion(
of node: AttributeSyntax,
attachedTo declaration: some DeclGroupSyntax,
providingExtensionsOf type: some TypeSyntaxProtocol,
conformingTo protocols: [TypeSyntax],
in context: some MacroExpansionContext
) throws -> [ExtensionDeclSyntax] {
let decl: DeclSyntax = """
extension \(raw: type.trimmedDescription): Sword.Component {
}
"""
let extensionDecl = decl.cast(ExtensionDeclSyntax.self)
return [extensionDecl]
}
}
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@Component
public final class AppComponent {
}
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public final class AppComponent {
}
extension AppComponent: Sword.Component {
}
!$PNQPOFOU
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@attached(peer)
public macro Dependency(
registeredTo component: any Component.Type
) = #externalMacro(
module: ”SwordMacros",
type: “DependencyMacro"
)
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@attached(peer)
public macro Dependency(
registeredTo component: any Component.Type
) = #externalMacro(
module: ”SwordMacros",
type: “DependencyMacro"
)
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@attached(peer)
public macro Dependency(
registeredTo component: any Component.Type
) = #externalMacro(
module: ”SwordMacros",
type: “DependencyMacro"
)
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struct DependencyMacro: PeerMacro {
static func expansion(
of node: AttributeSyntax,
providingPeersOf declaration: some DeclSyntaxProtocol,
in context: some MacroExpansionContext
) throws -> [DeclSyntax] {
guard
declaration.is(StructDeclSyntax.self)
|| declaration.is(ClassDeclSyntax.self)
|| declaration.is(ActorDeclSyntax.self)
else {
throw DependencyError.invalidApplication
}
return []
}
}
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struct DependencyMacro: PeerMacro {
static func expansion(
of node: AttributeSyntax,
providingPeersOf declaration: some DeclSyntaxProtocol,
in context: some MacroExpansionContext
) throws -> [DeclSyntax] {
guard
declaration.is(StructDeclSyntax.self)
|| declaration.is(ClassDeclSyntax.self)
|| declaration.is(ActorDeclSyntax.self)
else {
throw DependencyError.invalidApplication
}
return []
}
}
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@Dependency(registeredTo: AppComponent.self)
enum UserRepository {
}
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@Dependency(registeredTo: AppComponent.self)
enum UserRepository {
}
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@attached(peer)
public macro Injected() = #externalMacro(
module: "SwordMacros",
type: “InjectedMacro"
)
struct InjectedMacro: PeerMacro {
static func expansion(
of node: AttributeSyntax,
providingPeersOf declaration: some DeclSyntaxProtocol,
in context: some MacroExpansionContext
) throws -> [DeclSyntax] {
guard declaration.is(InitializerDeclSyntax.self) else {
throw InjectedError.invalidApplication
}
return []
}
}
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let package = Package(
…
targets: [
.target(
name: “ComponentApp",
dependencies: [.product(name: "Sword", package: “sword")]
),
.target(name: “DataLocal", dependencies:
[“ComponentApp”, .product(name: "Sword", package: “sword")]
),
.target(name: “DataRemote", dependencies: […]),
.target(name: “DataRepository", dependencies: […]),
.target(name: “FeatureLogin", dependencies: […]),
.target(
name: "SceneRoot",
dependencies: […]
)
]
)
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let package = Package(
…
targets: [
.target(
name: “ComponentApp",
dependencies: [.product(name: "Sword", package: “sword")]
),
.target(name: “DataLocal", dependencies:
[“ComponentApp”, .product(name: "Sword", package: “sword")]
),
.target(name: “DataRemote", dependencies: […]),
.target(name: “DataRepository", dependencies: […]),
.target(name: “FeatureLogin", dependencies: […]),
.target(
name: "SceneRoot",
dependencies: […],
plugins: [
.plugin(name: "SwordBuildToolPlugin", package: "sword")
]
)
]
)
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
}
}
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
}
}
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
}
}
let package = Package(
…
targets: [
…,
.target(
name: "SceneRoot",
dependencies: [
“ComponentApp", “DataLocal", …,
.product(name: "Sword", package: "sword")],
plugins: [
.plugin(name: "SwordBuildToolPlugin", package: "sword")
]
)
]
)
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
}
}
let package = Package(
…
targets: [
…,
.target(
name: "SceneRoot",
dependencies: [
“ComponentApp", “DataLocal", …,
.product(name: "Sword", package: "sword")],
plugins: [
.plugin(name: "SwordBuildToolPlugin", package: "sword")
]
)
]
)
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
}
private func recursiveSamePackageDependencies(for target: Target)
-> [Target] {
}
}
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
}
private func recursiveSamePackageDependencies(for target: Target)
-> [Target] {
guard
let sourceModule = target.sourceModule
}
}
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
}
private func recursiveSamePackageDependencies(for target: Target)
-> [Target] {
guard
let sourceModule = target.sourceModule,
case .generic = sourceModule.kind
else { return [] }
}
}
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
}
private func recursiveSamePackageDependencies(for target: Target)
-> [Target] {
guard
let sourceModule = target.sourceModule,
case .generic = sourceModule.kind
else { return [] }
return sourceModule.dependencies.reduce([target]) { result, dependency in
}
}
}
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
}
private func recursiveSamePackageDependencies(for target: Target)
-> [Target] {
guard
let sourceModule = target.sourceModule,
case .generic = sourceModule.kind
else { return [] }
return sourceModule.dependencies.reduce([target]) { result, dependency in
switch dependency {
case .target(let dependencyTarget):
result + recursiveSamePackageDependencies(for: dependencyTarget)
case .product: result
@unknown default: result
}
}
}
}
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
let dependencies = recursiveSamePackageDependencies(for: target)
}
}
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
let dependencies = recursiveSamePackageDependencies(for: target)
let currentDirectory = context.package.directoryURL.path()
let inputDirectories = dependencies.map { dependency in
dependency.directory.string.replacingOccurrences(
of: currentDirectory, with: ""
)
}
}
}
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
let dependencies = recursiveSamePackageDependencies(for: target)
let currentDirectory = context.package.directoryURL.path()
let inputDirectories = dependencies.map { dependency in
dependency.directory.string.replacingOccurrences(
of: currentDirectory, with: ""
)
}
let output = context.pluginWorkDirectoryURL.appending(
path: “Sword.generated.swift"
)
}
}
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struct SwordBuildToolPlugin: BuildToolPlugin {
func createBuildCommands(context: PluginContext, target: Target)
throws -> [Command] {
let dependencies = recursiveSamePackageDependencies(for: target)
let currentDirectory = context.package.directoryURL.path()
let inputDirectories = dependencies.map { dependency in
dependency.directory.string.replacingOccurrences(
of: currentDirectory, with: ""
)
}
let output = context.pluginWorkDirectoryURL.appending(
path: “Sword.generated.swift"
)
return [.buildCommand(
displayName: "Run SwordCommand",
executable: try context.tool(named: "SwordCommand").url,
arguments: ["--inputs"] + inputDirectories +
["--output", output.relativePath],
outputFiles: [output]
)]
}
}
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struct SwordCommand: ParsableCommand {
@Option(parsing: .upToNextOption)
var inputs: [String] = []
@Option
var output: String
mutating func run() throws {
}
}
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struct SwordCommand: ParsableCommand {
@Option(parsing: .upToNextOption)
var inputs: [String] = []
@Option
var output: String
mutating func run() throws {
}
}
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struct SwordCommand: ParsableCommand {
@Option(parsing: .upToNextOption)
var inputs: [String] = []
@Option
var output: String
mutating func run() throws {
}
}
["Sources/SceneRoot", "Sources/ComponentApp", ”Sources/FeatureLogin”,
"Sources/DataRepository", "Sources/DataLocal", "Sources/DataRemote"]
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struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
let sourceFilePaths: [URL] = try inputs.flatMap { input in
// using https://github.com/kylef/PathKit.git
try Path(input).recursiveChildren().compactMap { child in
guard child.extension == "swift" else { return nil }
return child.absolute().url
}
}
}
}
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struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
let sourceFilePaths: [URL] = try inputs.flatMap { input in
// using https://github.com/kylef/PathKit.git
try Path(input).recursiveChildren().compactMap { child in
guard child.extension == "swift" else { return nil }
return child.absolute().url
}
}
}
}
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struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
let sourceFilePaths: [URL] = try inputs.flatMap { input in
// using https://github.com/kylef/PathKit.git
try Path(input).recursiveChildren().compactMap { child in
guard child.extension == "swift" else { return nil }
return child.absolute().url
}
}
}
}
[…/
SampleProject/Package/Sources/SceneRoot/RootScene.swift,
…/SampleProject/Package/Sources/ComponentApp/AppComponent.swift,
…/SampleProject/Package/Sources/DataLocal/UserLocalDataSource.swift,
…/SampleProject/Package/Sources/DataRemote/UserRemoteDataSource.swift,
…/SampleProject/Package/Sources/DataRepository/UserRepository.swift,
…/SampleProject/Package/Sources/DataRepository/UserRepository.swift,
…/SampleProject/Package/Sources/FeatureLogin/LoginViewModel.swift,
…/SampleProject/Package/Sources/FeatureLogin/LoginScreen.swift]
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struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
let sourceFilePaths: [URL] = …
let sourceFileSyntaxes = try sourceFilePaths.map { sourceFilePath in
let source = try String(contentsOf: sourceFilePath, encoding: .utf8)
return SwiftParser.Parser.parse(source: source)
}
}
}
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struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
let sourceFilePaths: [URL] = …
let sourceFileSyntaxes = try sourceFilePaths.map { sourceFilePath in
let source = try String(contentsOf: sourceFilePath, encoding: .utf8)
return SwiftParser.Parser.parse(source: source)
}
}
}
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struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
let sourceFilePaths: [URL] = …
let sourceFileSyntaxes = try sourceFilePaths.map { sourceFilePath in
let source = try String(contentsOf: sourceFilePath, encoding: .utf8)
return SwiftParser.Parser.parse(source: source)
}
}
}
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SourceFileSyntax
├─statements: CodeBlockItemListSyntax
│ ╰─[1]: CodeBlockItemSyntax
│ ╰─item: ClassDeclSyntax
│ ├─attributes: AttributeListSyntax
│ │ ╰─[0]: AttributeSyntax
│ │ ├─atSign: atSign
│ │ ╰─attributeName: IdentifierTypeSyntax
│ │ ╰─name: identifier("Component")
│ ├─modifiers: DeclModifierListSyntax
│ │ ╰─[0]: DeclModifierSyntax
│ │ ╰─name: keyword(SwiftSyntax.Keyword.final)
│ ├─classKeyword: keyword(SwiftSyntax.Keyword.class)
│ ├─name: identifier("AppComponent")
│ ╰─memberBlock:…
╰─endOfFileToken: endOfFile
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SourceFileSyntax
├─statements: CodeBlockItemListSyntax
│ ╰─[1]: CodeBlockItemSyntax
│ ╰─item: ClassDeclSyntax
│ ├─attributes: AttributeListSyntax
│ │ ╰─[0]: AttributeSyntax
│ │ ├─atSign: atSign
│ │ ╰─attributeName: IdentifierTypeSyntax
│ │ ╰─name: identifier("Component")
│ ├─modifiers: DeclModifierListSyntax
│ │ ╰─[0]: DeclModifierSyntax
│ │ ╰─name: keyword(SwiftSyntax.Keyword.final)
│ ├─classKeyword: keyword(SwiftSyntax.Keyword.class)
│ ├─name: identifier("AppComponent")
│ ╰─memberBlock:…
╰─endOfFileToken: endOfFile
@Component
final class AppComponent {
}
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SourceFileSyntax
├─statements: CodeBlockItemListSyntax
│ ╰─[1]: CodeBlockItemSyntax
│ ╰─item: ClassDeclSyntax
│ ├─attributes: AttributeListSyntax
│ │ ╰─[0]: AttributeSyntax
│ │ ├─atSign: atSign
│ │ ╰─attributeName: IdentifierTypeSyntax
│ │ ╰─name: identifier("Component")
│ ├─modifiers: DeclModifierListSyntax
│ │ ╰─[0]: DeclModifierSyntax
│ │ ╰─name: keyword(SwiftSyntax.Keyword.final)
│ ├─classKeyword: keyword(SwiftSyntax.Keyword.class)
│ ├─name: identifier("AppComponent")
│ ╰─memberBlock:…
╰─endOfFileToken: endOfFile
@Component
final class AppComponent {
}
Slide 83
Slide 83 text
SourceFileSyntax
├─statements: CodeBlockItemListSyntax
│ ╰─[1]: CodeBlockItemSyntax
│ ╰─item: ClassDeclSyntax
│ ├─attributes: AttributeListSyntax
│ │ ╰─[0]: AttributeSyntax
│ │ ├─atSign: atSign
│ │ ╰─attributeName: IdentifierTypeSyntax
│ │ ╰─name: identifier("Component")
│ ├─modifiers: DeclModifierListSyntax
│ │ ╰─[0]: DeclModifierSyntax
│ │ ╰─name: keyword(SwiftSyntax.Keyword.final)
│ ├─classKeyword: keyword(SwiftSyntax.Keyword.class)
│ ├─name: identifier("AppComponent")
│ ╰─memberBlock:…
╰─endOfFileToken: endOfFile
@Component
final class AppComponent {
}
Slide 84
Slide 84 text
struct ComponentDescriptor {
let name: String
}
Slide 85
Slide 85 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
}
}
Slide 86
Slide 86 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
}
}
Slide 87
Slide 87 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
}
}
Slide 88
Slide 88 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
}
}
Slide 89
Slide 89 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
}
}
ClassDeclSyntax
├─attributes: AttributeListSyntax
│ ╰─[0]: AttributeSyntax
│ ├─atSign: atSign
│ ╰─attributeName: IdentifierTypeSyntax
│ ╰─name: identifier("Component")
├─modifiers: DeclModifierListSyntax
│ ╰─[0]: DeclModifierSyntax
│ ╰─name: keyword(SwiftSyntax.Keyword.final)
├─classKeyword: keyword(SwiftSyntax.Keyword.class)
├─name: identifier("AppComponent")
╰─memberBlock:…
Slide 90
Slide 90 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
}
}
ClassDeclSyntax
├─attributes: AttributeListSyntax
│ ╰─[0]: AttributeSyntax
│ ├─atSign: atSign
│ ╰─attributeName: IdentifierTypeSyntax
│ ╰─name: identifier("Component")
├─modifiers: DeclModifierListSyntax
│ ╰─[0]: DeclModifierSyntax
│ ╰─name: keyword(SwiftSyntax.Keyword.final)
├─classKeyword: keyword(SwiftSyntax.Keyword.class)
├─name: identifier("AppComponent")
╰─memberBlock:…
Slide 91
Slide 91 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
let componentAttribute = node.attributes.first { attribute in
guard
let attribute = attribute.as(AttributeSyntax.self),
let attributeName =
attribute.attributeName.as(IdentifierTypeSyntax.self)
else { return false }
return attributeName.name.text == "Component"
}
}
}
Slide 92
Slide 92 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
let componentAttribute = node.attributes.first { attribute in
guard
let attribute = attribute.as(AttributeSyntax.self),
let attributeName =
attribute.attributeName.as(IdentifierTypeSyntax.self)
else { return false }
return attributeName.name.text == "Component"
}
}
}
Slide 93
Slide 93 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
let componentAttribute = node.attributes.first { attribute in
guard
let attribute = attribute.as(AttributeSyntax.self),
let attributeName =
attribute.attributeName.as(IdentifierTypeSyntax.self)
else { return false }
return attributeName.name.text == "Component"
}
}
}
Slide 94
Slide 94 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
let componentAttribute = node.attributes.first(named: “Component")
}
}
extension AttributeListSyntax {
func first(named name: String) -> AttributeSyntax? {
self.first { attribute in
guard
let attribute = attribute.as(AttributeSyntax.self),
let attributeName =
attribute.attributeName.as(IdentifierTypeSyntax.self)
else { return false }
return attributeName.name.text == name
}?.as(AttributeSyntax.self)
}
}
Slide 95
Slide 95 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
let componentAttribute = node.attributes.first(named: "Component")
guard componentAttribute != nil else {
return .skipChildren
}
}
}
Slide 96
Slide 96 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
let componentAttribute = node.attributes.first(named: "Component")
guard componentAttribute != nil else {
return .skipChildren
}
}
}
ClassDeclSyntax
├─attributes: AttributeListSyntax
│ ╰─[0]: AttributeSyntax
│ ├─atSign: atSign
│ ╰─attributeName: IdentifierTypeSyntax
│ ╰─name: identifier("Component")
├─modifiers: DeclModifierListSyntax
│ ╰─[0]: DeclModifierSyntax
│ ╰─name: keyword(SwiftSyntax.Keyword.final)
├─classKeyword: keyword(SwiftSyntax.Keyword.class)
├─name: identifier("AppComponent")
╰─memberBlock:…
Slide 97
Slide 97 text
final class ComponentVisitor: SyntaxVisitor {
var results = [ComponentDescriptor]()
override func visit(_ node: ClassDeclSyntax) -> SyntaxVisitorContinueKind {
let componentAttribute = node.attributes.first(named: "Component")
guard componentAttribute != nil else {
return .skipChildren
}
results.append(ComponentDescriptor(name: node.name.text))
return .skipChildren
}
}
Slide 98
Slide 98 text
struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
…
let sourceFileSyntaxes = …
}
}
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Slide 99 text
struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
…
let sourceFileSyntaxes = …
var componentDescriptors = [ComponentDescriptor]()
for sourceFileSyntax in sourceFileSyntaxes {
let componentVisitor = ComponentVisitor(viewMode: .sourceAccurate)
componentVisitor.walk(sourceFileSyntax)
componentDescriptors.append(contentsOf: componentVisitor.results)
}
}
}
Slide 100
Slide 100 text
struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
…
let sourceFileSyntaxes = …
var componentDescriptors = [ComponentDescriptor]()
var dependencyDescriptors = [DependencyDescriptor]()
for sourceFileSyntax in sourceFileSyntaxes {
let componentVisitor = ComponentVisitor(viewMode: .sourceAccurate)
componentVisitor.walk(sourceFileSyntax)
componentDescriptors.append(contentsOf: componentVisitor.results)
let dependencyVisitor = DependencyVisitor(viewMode: .sourceAccurate)
dependencyVisitor.walk(sourceFileSyntax)
dependencyDescriptors.append(contentsOf: dependencyVisitor.results)
}
}
}
Slide 101
Slide 101 text
1SBDUJDBM&YBNQMF$PEF(FOFSBUJPOGPS%*$POUBJOFS
%F
fi
OF
.BDSPT
$PO
fi
HVSF
1MVHJO
1BSTF 7BMJEBUF
(FOFSBUF
$PEF
Slide 102
Slide 102 text
1SBDUJDBM&YBNQMF$PEF(FOFSBUJPOGPS%*$POUBJOFS
%F
fi
OF
.BDSPT
$PO
fi
HVSF
1MVHJO
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(FOFSBUF
$PEF
Slide 103
Slide 103 text
1 @Dependency(registeredTo: AppComponent.self)
2 struct UserRepository {
3 private let localDataSource: UserLocalDataSource
4 private let remoteDataSource: UserRemoteDataSource
5
6 init(
7 localDataSource: UserLocalDataSource,
8 remoteDataSource: UserRemoteDataSource
9 ) {
10 self.localDataSource = localDataSource
11 self.remoteDataSource = remoteDataSource
12 }
13 }
Slide 104
Slide 104 text
1 @Dependency(registeredTo: AppComponent.self)
2 struct UserRepository {
3 private let localDataSource: UserLocalDataSource
4 private let remoteDataSource: UserRemoteDataSource
5
6 init(
7 localDataSource: UserLocalDataSource,
8 remoteDataSource: UserRemoteDataSource
9 ) {
10 self.localDataSource = localDataSource
11 self.remoteDataSource = remoteDataSource
12 }
13 }
Slide 105
Slide 105 text
let file = ".../UserRepository.swift"
let line = 1
let column = 1
let severity = "error" // or “warning"
let message = "'@Dependency' requires an '@Injected' initializer"
FileHandle.standardOutput.write(
Data(“\(file):\(line):\(column): \(severity): \(message)”.utf8)
)
Slide 106
Slide 106 text
let file = ".../UserRepository.swift"
let line = 1
let column = 1
let severity = "error" // or “warning"
let message = "'@Dependency' requires an '@Injected' initializer"
FileHandle.standardOutput.write(
Data(“\(file):\(line):\(column): \(severity): \(message)”.utf8)
)
Slide 107
Slide 107 text
let file = ".../UserRepository.swift"
let line = 1
let column = 1
let severity = "error" // or “warning"
let message = "'@Dependency' requires an '@Injected' initializer"
FileHandle.standardOutput.write(
Data(“\(file):\(line):\(column): \(severity): \(message)”.utf8)
)
Slide 108
Slide 108 text
let file = ".../UserRepository.swift"
let line = 1
let column = 1
let severity = "error" // or “warning"
let message = "'@Dependency' requires an '@Injected' initializer"
FileHandle.standardOutput.write(
Data(“\(file):\(line):\(column): \(severity): \(message)”.utf8)
)
Slide 109
Slide 109 text
let file = ".../UserRepository.swift"
let line = 1
let column = 1
let severity = "error" // or “warning"
let message = "'@Dependency' requires an '@Injected' initializer"
FileHandle.standardOutput.write(
Data(“\(file):\(line):\(column): \(severity): \(message)”.utf8)
)
Slide 110
Slide 110 text
let file = ".../UserRepository.swift"
let line = 1
let column = 1
let severity = "error" // or “warning"
let message = "'@Dependency' requires an '@Injected' initializer"
FileHandle.standardOutput.write(
Data(“\(file):\(line):\(column): \(severity): \(message)”.utf8)
)
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Slide 111 text
let file = ".../UserRepository.swift"
let line = 1
let column = 1
let severity = "error" // or “warning"
let message = "'@Dependency' requires an '@Injected' initializer"
FileHandle.standardOutput.write(
Data(“\(file):\(line):\(column): \(severity): \(message)”.utf8)
)
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Slide 112 text
struct DependencyDescriptor {
struct Initializer {
struct Parameter {
let type: String
let name: String
}
let parameters: [Parameter]
}
let componentName: String
let type: String
let injectedInitializers: [Initializer]
let location: SourceLocation
}
Slide 113
Slide 113 text
struct DependencyDescriptor {
struct Initializer {
struct Parameter {
let type: String
let name: String
}
let parameters: [Parameter]
}
let componentName: String
let type: String
let injectedInitializers: [Initializer]
let location: SourceLocation
}
public struct SourceLocation: Hashable, Codable, Sendable {
/// The
fi
le in which this location resides.
public let file: String
/// The line in the
fi
le where this location resides. 1-based.
public var line: Int
/// The UTF-8 byte o
ff
set from the beginning of the line where this location
/// resides. 1-based.
public let column: Int
…
}
Slide 114
Slide 114 text
final class DependencyVisitor: SyntaxVisitor {
…
private let locationConverter: SourceLocationConverter
init(locationConverter: SourceLocationConverter) {
self.locationConverter = locationConverter
super.init(viewMode: .sourceAccurate)
}
override func visit(_ node: StructDeclSyntax) -> SyntaxVisitorContinueKind {
…
let dependencyDescriptor = DependencyDescriptor(
componentName: componentArgument.baseName.text,
type: node.name.text,
injectedInitializers: injectedInitializers,
location: node.attributes.startLocation(converter: locationConverter)
)
results.append(dependencyDescriptor)
return .skipChildren
}
}
Slide 115
Slide 115 text
final class DependencyVisitor: SyntaxVisitor {
…
private let locationConverter: SourceLocationConverter
init(locationConverter: SourceLocationConverter) {
self.locationConverter = locationConverter
super.init(viewMode: .sourceAccurate)
}
override func visit(_ node: StructDeclSyntax) -> SyntaxVisitorContinueKind {
…
let dependencyDescriptor = DependencyDescriptor(
componentName: componentArgument.baseName.text,
type: node.name.text,
injectedInitializers: injectedInitializers,
location: node.attributes.startLocation(converter: locationConverter)
)
results.append(dependencyDescriptor)
return .skipChildren
}
}
Slide 116
Slide 116 text
final class DependencyVisitor: SyntaxVisitor {
…
private let locationConverter: SourceLocationConverter
init(locationConverter: SourceLocationConverter) {
self.locationConverter = locationConverter
super.init(viewMode: .sourceAccurate)
}
override func visit(_ node: StructDeclSyntax) -> SyntaxVisitorContinueKind {
…
let dependencyDescriptor = DependencyDescriptor(
componentName: componentArgument.baseName.text,
type: node.name.text,
injectedInitializers: injectedInitializers,
location: node.attributes.startLocation(converter: locationConverter)
)
results.append(dependencyDescriptor)
return .skipChildren
}
}
Slide 117
Slide 117 text
struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
…
}
}
Slide 118
Slide 118 text
struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
…
let dependencies = try dependencyDescriptors.compactMap { descriptor in
return Dependency(
)
}
}
}
Slide 119
Slide 119 text
struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
…
let dependencies = try dependencyDescriptors.compactMap { descriptor in
guard let initializer = descriptor.injectedInitializers.first else {
return nil
}
return Dependency(
type: descriptor.type,
componentName: descriptor.componentName,
initializer: initializer
)
}
}
}
Slide 120
Slide 120 text
struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
…
let dependencies = try dependencyDescriptors.compactMap { descriptor in
guard let initializer = descriptor.injectedInitializers.first else {
let location = descriptor.location
try FileHandle.standardOutput.write(contentsOf: Data(
"\(location.file):\(location.line):\(location.column):
error: '@Dependency' requires an '@Injected' initializer".utf8
))
return nil
}
return Dependency(
type: descriptor.type,
componentName: descriptor.componentName,
initializer: initializer
)
}
}
}
Slide 121
Slide 121 text
struct SwordCommand: ParsableCommand {
…
mutating func run() throws {
…
guard let componentDescriptor = componentDescriptors.first else {
try FileHandle.standardOutput.write(contentsOf: Data(
"warning: '@Component' must be declared".utf8
))
return
}
let component = Component(name: componentDescriptor.name)
}
}
Slide 122
Slide 122 text
1SBDUJDBM&YBNQMF$PEF(FOFSBUJPOGPS%*$POUBJOFS
%F
fi
OF
.BDSPT
$PO
fi
HVSF
1MVHJO
1BSTF 7BMJEBUF
(FOFSBUF
$PEF
Slide 123
Slide 123 text
1SBDUJDBM&YBNQMF$PEF(FOFSBUJPOGPS%*$POUBJOFS
%F
fi
OF
.BDSPT
$PO
fi
HVSF
1MVHJO
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$PEF
Slide 124
Slide 124 text
// Sword.generated.swift
extension AppComponent {
var userLocalDataSource: UserLocalDataSource {
UserLocalDataSource()
}
var userRemoteDataSource: UserRemoteDataSource {
UserRemoteDataSource()
}
var userRepository: UserRepository {
UserRepository(localDataSource: self.userLocalDataSource,
remoteDataSource: self.userRemoteDataSource)
}
var loginViewModel: LoginViewModel {
LoginViewModel(userRepository: self.userRepository)
}
}
Slide 125
Slide 125 text
// using only String
var output = "extension \(component.name) {"
output += "\n"
for dependency in dependencies {
output.append(" var \(dependency.key): \(dependency.type) {")
output.append("\n")
var dependencyGetter = ""
dependencyGetter.append(" \(dependency.type)")
dependencyGetter.append("(")
for (i, parameter) in dependency.initializer.parameters.enumerated() {
dependencyGetter.append("\(parameter.name): self.\(parameter.type)")
if i < dependency.initializer.parameters.count - 1 {
dependencyGetter.append(", ")
}
}
dependencyGetter.append(")")
output.append(dependencyGetter)
output.append("\n")
output.append(" }")
output.append("\n")
}
Slide 126
Slide 126 text
// using only String
var output = "extension \(component.name) {"
output += "\n"
for dependency in dependencies {
output.append(" var \(dependency.key): \(dependency.type) {")
output.append("\n")
var dependencyGetter = ""
dependencyGetter.append(" \(dependency.type)")
dependencyGetter.append("(")
for (i, parameter) in dependency.initializer.parameters.enumerated() {
dependencyGetter.append("\(parameter.name): self.\(parameter.type)")
if i < dependency.initializer.parameters.count - 1 {
dependencyGetter.append(", ")
}
}
dependencyGetter.append(")")
output.append(dependencyGetter)
output.append("\n")
output.append(" }")
output.append("\n")
}
Slide 127
Slide 127 text
// using SwiftSyntaxBuilder
CodeBlockItemListSyntax(itemsBuilder: {
ExtensionDeclSyntax(
extendedType: IdentifierTypeSyntax(name: .identifier(component.name)),
memberBlockBuilder: {
for dependency in dependencies {
VariableDeclSyntax(bindingSpecifier: .keyword(.var)) {
PatternBindingSyntax(
pattern: IdentifierPatternSyntax(
identifier: .identifier(dependency.key.value)),
typeAnnotation: TypeAnnotationSyntax(
type: IdentifierTypeSyntax(
name: .identifier(dependency.type)
)
),
accessorBlock: AccessorBlockSyntax(accessors: .getter(…))
)
}
}
)
})
Slide 128
Slide 128 text
// using SwiftSyntaxBuilder
CodeBlockItemListSyntax(itemsBuilder: {
ExtensionDeclSyntax(
extendedType: IdentifierTypeSyntax(name: .identifier(component.name)),
memberBlockBuilder: {
for dependency in dependencies {
VariableDeclSyntax(bindingSpecifier: .keyword(.var)) {
PatternBindingSyntax(
pattern: IdentifierPatternSyntax(
identifier: .identifier(dependency.key.value)),
typeAnnotation: TypeAnnotationSyntax(
type: IdentifierTypeSyntax(
name: .identifier(dependency.type)
)
),
accessorBlock: AccessorBlockSyntax(accessors: .getter(…))
)
}
}
)
})
CodeBlockItemListSyntax
╰─[0]: CodeBlockItemSyntax
╰─item: ExtensionDeclSyntax
├─…
├─extendedType: IdentifierTypeSyntax
│ ╰─name: identifier("AppComponent")
╰─memberBlock: MemberBlockSyntax
├─leftBrace: leftBrace
├─members: MemberBlockItemListSyntax
│ ╰─[1]: MemberBlockItemSyntax
│ ╰─decl: VariableDeclSyntax
│ ├─…
│ ╰─bindings: PatternBindingListSyntax
│ ╰─[0]: PatternBindingSyntax
│ ├─pattern: IdentifierPatternSyntax
│ │ ╰─identifier: identifier("userRemoteDataSource")
│ ╰─…
╰─rightBrace: rightBrace
Slide 129
Slide 129 text
// using SwiftSyntaxBuilder
CodeBlockItemListSyntax(itemsBuilder: {
ExtensionDeclSyntax(
extendedType: IdentifierTypeSyntax(name: .identifier(component.name)),
memberBlockBuilder: {
for dependency in dependencies {
VariableDeclSyntax(bindingSpecifier: .keyword(.var)) {
PatternBindingSyntax(
pattern: IdentifierPatternSyntax(
identifier: .identifier(dependency.key.value)),
typeAnnotation: TypeAnnotationSyntax(
type: IdentifierTypeSyntax(
name: .identifier(dependency.type)
)
),
accessorBlock: AccessorBlockSyntax(accessors: .getter(…))
)
}
}
)
})
CodeBlockItemListSyntax
╰─[0]: CodeBlockItemSyntax
╰─item: ExtensionDeclSyntax
├─…
├─extendedType: IdentifierTypeSyntax
│ ╰─name: identifier("AppComponent")
╰─memberBlock: MemberBlockSyntax
├─leftBrace: leftBrace
├─members: MemberBlockItemListSyntax
│ ╰─[1]: MemberBlockItemSyntax
│ ╰─decl: VariableDeclSyntax
│ ├─…
│ ╰─bindings: PatternBindingListSyntax
│ ╰─[0]: PatternBindingSyntax
│ ├─pattern: IdentifierPatternSyntax
│ │ ╰─identifier: identifier("userRemoteDataSource")
│ ╰─…
╰─rightBrace: rightBrace
Slide 130
Slide 130 text
// using SwiftSyntaxBuilder
CodeBlockItemListSyntax(itemsBuilder: {
ExtensionDeclSyntax(
extendedType: IdentifierTypeSyntax(name: .identifier(component.name)),
memberBlockBuilder: {
for dependency in dependencies {
VariableDeclSyntax(bindingSpecifier: .keyword(.var)) {
PatternBindingSyntax(
pattern: IdentifierPatternSyntax(
identifier: .identifier(dependency.key.value)),
typeAnnotation: TypeAnnotationSyntax(
type: IdentifierTypeSyntax(
name: .identifier(dependency.type)
)
),
accessorBlock: AccessorBlockSyntax(accessors: .getter(…))
)
}
}
)
})
Slide 131
Slide 131 text
// using SwiftSyntaxBuilder
CodeBlockItemListSyntax(itemsBuilder: {
ExtensionDeclSyntax(
extendedType: IdentifierTypeSyntax(name: .identifier(component.name)),
memberBlockBuilder: {
for dependency in dependencies {
VariableDeclSyntax(bindingSpecifier: .keyword(.var)) {
PatternBindingSyntax(
pattern: IdentifierPatternSyntax(
identifier: .identifier(dependency.key.value)),
typeAnnotation: TypeAnnotationSyntax(
type: IdentifierTypeSyntax(
name: .identifier(dependency.type)
)
),
accessorBlock: AccessorBlockSyntax(accessors: .getter(…))
)
}
}
)
})
CodeBlockItemListSyntax
╰─[0]: CodeBlockItemSyntax
╰─item: ExtensionDeclSyntax
├─…
├─extendedType: IdentifierTypeSyntax
│ ╰─name: identifier("AppComponent")
╰─memberBlock: MemberBlockSyntax
├─leftBrace: leftBrace
├─members: MemberBlockItemListSyntax
│ ╰─[1]: MemberBlockItemSyntax
│ ╰─decl: VariableDeclSyntax
│ ├─…
│ ╰─bindings: PatternBindingListSyntax
│ ╰─[0]: PatternBindingSyntax
│ ├─pattern: IdentifierPatternSyntax
│ │ ╰─identifier: identifier("userRemoteDataSource")
│ ╰─…
╰─rightBrace: rightBrace
Slide 132
Slide 132 text
// using SwiftSyntaxBuilder
CodeBlockItemListSyntax(itemsBuilder: {
ExtensionDeclSyntax(
extendedType: IdentifierTypeSyntax(name: .identifier(component.name)),
memberBlockBuilder: {
for dependency in dependencies {
VariableDeclSyntax(bindingSpecifier: .keyword(.var)) {
PatternBindingSyntax(
pattern: IdentifierPatternSyntax(
identifier: .identifier(dependency.key.value)),
typeAnnotation: TypeAnnotationSyntax(
type: IdentifierTypeSyntax(
name: .identifier(dependency.type)
)
),
accessorBlock: AccessorBlockSyntax(accessors: .getter(…))
)
}
}
)
})
Slide 133
Slide 133 text
// using SwiftSyntaxBuilder
CodeBlockItemListSyntax(itemsBuilder: {
ExtensionDeclSyntax(
extendedType: IdentifierTypeSyntax(name: .identifier(component.name)),
memberBlockBuilder: {
for dependency in dependencies {
VariableDeclSyntax(bindingSpecifier: .keyword(.var)) {
PatternBindingSyntax(
pattern: IdentifierPatternSyntax(
identifier: .identifier(dependency.key.value)),
typeAnnotation: TypeAnnotationSyntax(
type: IdentifierTypeSyntax(
name: .identifier(dependency.type)
)
),
accessorBlock: AccessorBlockSyntax(accessors: .getter(…))
)
}
}
)
})
CodeBlockItemListSyntax
╰─[0]: CodeBlockItemSyntax
╰─item: ExtensionDeclSyntax
├─…
├─extendedType: IdentifierTypeSyntax
│ ╰─name: identifier("AppComponent")
╰─memberBlock: MemberBlockSyntax
├─leftBrace: leftBrace
├─members: MemberBlockItemListSyntax
│ ╰─[1]: MemberBlockItemSyntax
│ ╰─decl: VariableDeclSyntax
│ ├─…
│ ╰─bindings: PatternBindingListSyntax
│ ╰─[0]: PatternBindingSyntax
│ ├─pattern: IdentifierPatternSyntax
│ │ ╰─identifier: identifier("userRemoteDataSource")
│ ╰─…
╰─rightBrace: rightBrace
Slide 134
Slide 134 text
// using SwiftSyntaxBuilder
CodeBlockItemListSyntax(itemsBuilder: {
ExtensionDeclSyntax(
extendedType: IdentifierTypeSyntax(name: .identifier(component.name)),
memberBlockBuilder: {
for dependency in dependencies {
VariableDeclSyntax(bindingSpecifier: .keyword(.var)) {
PatternBindingSyntax(
pattern: IdentifierPatternSyntax(
identifier: .identifier(dependency.key.value)),
typeAnnotation: TypeAnnotationSyntax(
type: IdentifierTypeSyntax(
name: .identifier(dependency.type)
)
),
accessorBlock: AccessorBlockSyntax(accessors: .getter(…))
)
}
}
)
})
Slide 135
Slide 135 text
struct SwordCommand: ParsableCommand {
…
@Option
var output: String
mutating func run() throws {
…
let renderResult = render(component, dependencies)
}
private func render(_ component: Component, _ dependencies: [Dependency])
-> CodeBlockItemListSyntax {
CodeBlockItemListSyntax { … }
}
}
Slide 136
Slide 136 text
struct SwordCommand: ParsableCommand {
…
@Option
var output: String
mutating func run() throws {
…
let renderResult = render(component, dependencies)
var renderResultOutput = ""
renderResult.formatted().write(to: &renderResultOutput)
}
private func render(_ component: Component, _ dependencies: [Dependency])
-> CodeBlockItemListSyntax {
CodeBlockItemListSyntax { … }
}
}
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struct SwordCommand: ParsableCommand {
…
@Option
var output: String
mutating func run() throws {
…
let renderResult = render(component, dependencies)
var renderResultOutput = ""
renderResult.formatted().write(to: &renderResultOutput)
}
private func render(_ component: Component, _ dependencies: [Dependency])
-> CodeBlockItemListSyntax {
CodeBlockItemListSyntax { … }
}
}
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struct SwordCommand: ParsableCommand {
…
@Option
var output: String
mutating func run() throws {
…
let renderResult = render(component, dependencies)
var renderResultOutput = ""
renderResult.formatted().write(to: &renderResultOutput)
try renderResultOutput.data(using: .utf8)?.write(
to: URL(filePath: output),
options: .atomic
)
}
private func render(_ component: Component, _ dependencies: [Dependency])
-> CodeBlockItemListSyntax {
CodeBlockItemListSyntax { … }
}
}
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