SwiftCodeGen 2.0.0

SwiftCodeGen 2 is a new package under the old name. The 1.x code generators were removed in
June 2026 and what remained did not build; 2.0 replaces them with two Swift macros for Swift 6
strict concurrency, each tested and documented. Nothing from the 1.x API is kept: for asset,
string, OpenAPI or mock generation, the README lists the tools to use.

Added

• @Synchronized for final classes: every stored var gets a getter, setter and in-place
  accessor (_modify) that run under one recursive SynchronizedLock, with the value in a
  private storage property initialized through an init accessor. Default values, assignments in
  init, implicit nil, weak and unowned keep working; let, computed, static and
  nonisolated(unsafe) properties are left alone. The macro adds withLock(_:) with typed
  throws and a checked Sendable conformance.
• @Streamed for properties of a @Synchronized class: adds <name>Updates, an
  AsyncStream that starts with the current value and delivers every change in order to any
  number of subscribers, skips equal values of Equatable types and ends when the object is
  released.
• StreamBroadcast, the multi-subscriber stream behind @Streamed: one buffered value per
  subscriber, subscribers forgotten when their stream ends or is dropped.
• Compiler errors, with fix-its where the fix is clear, for structs, enums, actors, non-final
  classes (add final), global-actor isolation (remove it), lazy (remove it), observers,
  overrides, property wrappers, several bindings, tuple patterns, and misuses of @Streamed.
  A class isolated to a global actor whose name does not end in Actor fails to compile at a
  generated nonisolated call to withLock.
• A DocC catalog with the articles "Getting started", "Streaming changes" and "Choosing a
  tool", published to GitHub Pages.
• The example app SyncDemo (iOS and macOS, MainActor default isolation) with a shared
  counter and an upload whose progress two views follow; the README samples are compiled by
  the app and run by the tests.

Removed

• The 1.x sources: CodeGenCore, the OpenAPI parser stub, the Xcode plugin generator, the
  retry, circuit breaker, event bus and metrics helpers, and the command-line tool.
• The CocoaPods podspec: macros need Swift Package Manager.

Full changelog: v1.0.0...v2.0.0

v1.0.0

Initial release