[composable-controller] Narrow class and messenger types by parameterizing over child controllers list

packages/address-book-controller/src/AddressBookController.ts

@@ -78,7 +78,7 @@ export class AddressBookController extends BaseControllerV1<
   /**
    * Name of this controller used during composition
    */
-  override name = 'AddressBookController';
+  override name = 'AddressBookController' as const;
 
   /**
    * Creates an AddressBookController instance.

packages/assets-controllers/src/AccountTrackerController.ts

@@ -112,7 +112,7 @@ export class AccountTrackerController extends StaticIntervalPollingControllerV1<
   /**
    * Name of this controller used during composition
    */
-  override name = 'AccountTrackerController';
+  override name = 'AccountTrackerController' as const;
 
   private readonly getIdentities: () => PreferencesState['identities'];
 

packages/assets-controllers/src/AssetsContractController.ts

@@ -107,7 +107,7 @@ export class AssetsContractController extends BaseControllerV1<
   /**
    * Name of this controller used during composition
    */
-  override name = 'AssetsContractController';
+  override name = 'AssetsContractController' as const;
 
   private readonly getNetworkClientById: NetworkController['getNetworkClientById'];
 

packages/assets-controllers/src/NftController.ts

@@ -935,7 +935,7 @@ export class NftController extends BaseControllerV1<NftConfig, NftState> {
   /**
    * Name of this controller used during composition
    */
-  override name = 'NftController';
+  override name = 'NftController' as const;
 
   private readonly getERC721AssetName: AssetsContractController['getERC721AssetName'];
 

packages/assets-controllers/src/TokenRatesController.ts

@@ -172,7 +172,7 @@ export class TokenRatesController extends StaticIntervalPollingControllerV1<
   /**
    * Name of this controller used during composition
    */
-  override name = 'TokenRatesController';
+  override name = 'TokenRatesController' as const;
 
   private readonly getNetworkClientById: NetworkController['getNetworkClientById'];
 

packages/composable-controller/CHANGELOG.md

@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Adds and exports new types: ([#3952](https://github.com/MetaMask/core/pull/3952))
+  - `RestrictedControllerMessengerConstraint`, which is the narrowest supertype of all controller-messenger instances.
+  - `LegacyControllerStateConstraint`, a universal supertype for the controller state object, encompassing both BaseControllerV1 and BaseControllerV2 state.
+  - `ComposableControllerStateConstraint`, the narrowest supertype for the composable controller state object.
+
+### Changed
+
+- **BREAKING:** The `ComposableController` class is now a generic class that expects one generic argument `ComposableControllerState` ([#3952](https://github.com/MetaMask/core/pull/3952)).
+  - **BREAKING:** For the `ComposableController` class to be typed correctly, any of its child controllers that extend `BaseControllerV1` must have an overridden `name` property that is defined using the `as const` assertion.
+
 ## [6.0.1]
 
 ### Fixed