0.53.0

What's Changed

• Added: Store.init and TestStore.init now take reducer builders (#2087).

  // Before:
  Store(
    initialState: Feature.State(),
    reducer: Feature()
  )
  
  // After:
  Store(initialState: Feature.State()) {
    Feature()
  }

• Changed: SwitchStore has gotten some quality-of-life improvements (#2029).

  • SwitchStore.init can now take the initial enum state so that it can be switched over exhaustively. This initializer also relaxes certain compile-time constraints previously requiring only CaseLet views and an optional, trailing Default view.

  • CaseLet can now omit the state parameter label, making it more consistent with other APIs, like Reducer.ifCaseLet.

  • The older SwitchStore and CaseLet initializers have been soft-deprecated along with the Default view.

    // Before:
    SwitchStore(self.store) {
      CaseLet(state: /App.State.loggedIn, action: App.Action.loggedIn) { loggedInStore in
        LoggedInView(store: loggedInStore)
      }
      CaseLet(state: /App.State.loggedOut, action: App.Action.loggedOut) { loggedOutStore in
        LoggedOutView(store: loggedOutStore)
      }
    }
    
    // After:
    SwitchStore(self.store) {
      switch $0 {  // Can now switch over initial state for exhaustivity at compile time
      case .loggedIn:
        CaseLet(/App.State.loggedIn, action: App.Action.loggedIn) { loggedInStore in
          LoggedInView(store: loggedInStore)
        }
        .buttonStyle(.plain) // Can now render arbitrary views/modifiers in the view builder
      case .loggedOut:
        CaseLet(/App.State.loggedOut, action: App.Action.loggedOut) { loggedOutStore in
          LoggedOutView(store: loggedOutStore)
        }
      }
    }

• Changed: WithViewStore.debug has been renamed to WithViewStore._printChanges for consistency with Reducer._printChanges (#2101).

• Fixed: EffectTask.publisher now properly escapes dependencies accessed within it (#1988).

• Fixed: Reducer._printChanges() is no longer disabled in tests (#1995). This allows it to be used for debugging purposes during test runs.

• Changed: The internal Task.megaYield tool, for more predictably testing concurrent code, is now configurable via the TASK_MEGA_YIELD_COUNT environment variable (#2064).

• Improved: The output format of WithViewStore._printChanges() has been improved (#1973).

• Improved: Runtime warnings will now emit XCTest failures in test code rather than in app code (#2059).

• Deprecated: Type-based cancel IDs have been deprecated (#2091). Use hashable values, instead.

• Deprecated: The actionless overload of Store.scope(state:) has been deprecated in favor of the observe parameter on view stores (#2097).

• Deprecated: Effect.task and Effect.fireAndForget have been soft-deprecated in favor of Effect.run (#2099).

• Infrastructure: Added test coverage for child/parent effect cancellation behavior (#1970).

• Infrastructure: Clean up effect cancellation logic (#1977).

• Infrastructure: Miscellaneous documentation/formatting fixes:

  Fixed missing action parameter in ForEachStore documentation (thanks @m-housh, #1998).

  Number fact tutorial fix (thanks @siliconsorcery, #1962).

  BindingAction fix (thanks @Ryu0118, #2019).

  withTaskCancellation(id:) fix (thanks @bjford, #2049).

  Formatting fix (thanks @mooyoung2309, #2056).

  Update 'bindable state' to 'binding state' (thanks @Jager-yoo, #2054).

• Infrastructure: Added Russian README translation (thanks @artyom-ivanov, #2014).

• Infrastructure: Added Polish README translation (thanks @MarcelStarczyk, #2040).

• Infrastructure: Bump dependencies.

• Infrastructure: Bump Xcode demo project settings (#2042).

• Infrastructure: Clean up and test TestStore.skipInFlightEffects (#2057).

• Infrastructure: CI updates (#2060).

• Infrastructure: Document how exhaustive vs. non-exhaustive test stores work (#2096).

New Contributors

• @m-housh made their first contribution in #1998
• @siliconsorcery made their first contribution in #1962
• @artyom-ivanov made their first contribution in #2014
• @Ryu0118 made their first contribution in #2019
• @MarcelStarczyk made their first contribution in #2040
• @mooyoung2309 made their first contribution in #2056

Full Changelog: 0.52.0...0.53.0