Swift Roadmap - simpleprog

Foundations

▸ Generic Functions & Type Parameters

▸ Associated Types & Protocol Generics

▸ Opaque Types (some)

Core Concepts

▸ Existential Types (any)

▸ Conditional Conformance

▸ Phantom Types for Type Safety

Intermediate Skills

▸ Generic Subscripts & Extensions

▸ Closure Expression Syntax

▸ Trailing Closure & Operator Methods

Advanced Topics

▸ Capturing Values & Capture Lists

▸ @escaping & @autoclosure

▸ Closure Lifetime & Strong Reference Cycles

Expert Level

▸ Closure in Result Builders

▸ Function vs Closure Performance

▸ async/await (Swift 5.5)

Mastery

▸ Task & TaskGroup

▸ Actor Isolation & reentrancy

▸ @MainActor & Global Actors

Ecosystem

▸ AsyncSequence & AsyncStream

▸ Continuations (withCheckedContinuation)

▸ Structured Concurrency Patterns

Architecture

▸ ARC (Automatic Reference Counting)

▸ Strong, Weak, Unowned References

▸ Retain Cycle Detection

Optimization

▸ Autoreleasepool

▸ Value Semantics & Copy-on-Write

▸ COW Implementation for Custom Types

Deployment

▸ Memory Allocation (malloc, class_getInstanceSize)

▸ Property Wrapper Definition

▸ projectedValue ($ prefix)

Phase 11

▸ Built-in Wrappers (@State, @Binding, @Published)

▸ Custom Validation Wrappers

▸ Dependency Injection Wrappers

Phase 12

▸ UserDefaults Wrapper

▸ Property Wrapper Composition

▸ Result Builder Protocol (buildBlock, buildEither)

Phase 13

▸ buildArray for Dynamic Content

▸ buildOptional & If/Else

▸ AttributedResultBuilder (SwiftUI ViewBuilder)

Phase 14

▸ Custom Result Builder for DSLs

▸ Result Builder Debugging

▸ Performance Considerations

Phase 15

▸ Freestanding Macros (#)

▸ Attached Macros (@)

▸ Macro Declaration & Implementation

Phase 16

▸ SwiftSyntax & Macro Expansion

▸ Peer & Member Macros

▸ Macro Roles & Common Patterns

Phase 17

▸ Debugging Macros

▸ Codable Protocol Hierarchy

▸ CodingKey & Custom Key Strategies

Phase 18

▸ Custom encode(to:)/init(from:)

▸ JSONEncoder/Decoder Configuration

▸ Partial & Conditional Decoding

Phase 19

▸ Property Wrapper + Codable

▸ Performance of Codable vs Manual

▸ View Protocol & Body

Phase 20

▸ State Management (State, Binding, ObservedObject)

▸ @StateObject vs @ObservedObject

▸ PreferenceKey

Phase 21

▸ GeometryReader & Layout

▸ EquatableView & Performance

▸ Custom Layout (Layout Protocol)

Phase 22

▸ Publisher, Subscriber, Subscription

▸ Operators (map, flatMap, filter, merge)

▸ Scheduler (DispatchQueue, RunLoop)

Phase 23

▸ Subjects (Passthrough, CurrentValue)

▸ Cancellation & Share

▸ Combine + SwiftUI Integration

Phase 24

▸ Custom Publisher Implementation

▸ XCTest Framework

▸ Async Test Expectations

Phase 25

▸ UI Testing (XCUITest)

▸ Mocking with Protocols

▸ Performance Testing (measure)

Phase 26

▸ Test Coverage (llvm-cov)

▸ Snapshot Testing (swift-snapshot-testing)

Swift RoadmapSwift

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