jacobsapps

private func setupLaunchSteps() {
    // Steps are arranged in proper dependency order - DO NOT REORDER without checking dependencies!
    
    // Foundation Layer (no dependencies)
    launchSteps.append(AppConfigStep())
    launchSteps.append(LoggingConfigurationStep())
    launchSteps.append(NetworkMonitoringStep())
    launchSteps.append(SecureStorageStep())
    launchSteps.append(UserDefaultsStep())
    launchSteps.append(AudioSessionStep())

jacobsapps

func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
) -> Bool {
    let startTime = CFAbsoluteTimeGetCurrent()

    LaunchOrchestrator.shared.executeLaunchSteps() // 🚀

    let totalTime = CFAbsoluteTimeGetCurrent() - startTime
    print("Total launch time: \(String(format: "%.2f", totalTime))s")

jacobsapps

// swift-tools-version: 6.1
import PackageDescription

let package = Package(
    name: "SwiftScriptDemos",
    platforms: [
        .macOS(.v13)
    ],
    dependencies: [
        .package(url: "https://github.com/swiftlang/swift-subprocess.git", exact: "0.1.0"),

jacobsapps

#!/usr/bin/swift

import Subprocess

let result = try await run(
    .name("ls"),
    arguments: ["-1"],
    output: .string(limit: 1 << 20)
)
print(result.standardOutput ?? "")

jacobsapps

while (true) {
    char* command = read_input();    
    pid_t pid = fork();
    if (pid == 0) {
        exec(command); // execute child process
    } else {
        wait(pid);     // parent waits for child to finish
    }
}

jacobsapps

@MainActor
func setupUI() async {
    await someAsyncWork()
}

@concurrent
func someAsyncWork() async {
    // with @concurrent attribute, this runs on the background thread
    try? await Task.sleep(for: .milliseconds(100))
}

jacobsapps

@MainActor
func setupUI() async {
    await someAsyncWork()
}

func someAsyncWork() async {
    // Add breakpoint to test this at runtime - it's on the main thread!
    try? await Task.sleep(for: .milliseconds(100))
}

jacobsapps

actor AuthServiceImpl: AuthService {
    var tokenTask: Task<String, Error>?
    
    func getBearerToken() async throws -> String {
        if tokenTask == nil {
            tokenTask = Task { try await fetchValidAuthToken() }
        }
            
        defer { tokenTask = nil }
        

jacobsapps

actor AuthServiceImpl: AuthService {
    func getBearerToken() async throws -> String {
        if cachedToken.isValid {
            return cachedToken 
        } 
        return try await authAPI.refreshCredentials() <-- suspension point
    }
}

jacobsapps

var purgeCacheTask: Task<Void, Never>?

func setupCacheTTL() {
    purgeCacheTask?.cancel()
    purgeCacheTask = Task(priority: .low) {
        try? await Task.sleep(for: .seconds(300))
        guard !Task.isCancelled else { return }
        cache.clear()
    }
}