Swift Macros vs Sourcery Karşılaştırması

@freestanding(expression)
public macro Color(_ hex: String) -> Color = #externalMacro(
    module: "MyMacros",
    type: "ColorFromHexMacro"
)

// Usage:
let primary = #Color("#4A90E2")
// Compile-time expansion → UIColor(red: 0.29, green: 0.56, ...)

// Sourcery annotation
// sourcery: AutoMockable
protocol UserService {
    func fetchUser(id: String) async throws -> User
    func updateUser(_ user: User) async throws
}

// Generated (auto) — MockUserService.generated.swift:
// class MockUserService: UserService { ... }