Migrate AccountDataStore.js to TypeScript.

src/matrix/storage/idb/Transaction.js

@@ -33,7 +33,7 @@ import {InboundGroupSessionStore} from "./stores/InboundGroupSessionStore.js";
 import {OutboundGroupSessionStore} from "./stores/OutboundGroupSessionStore";
 import {GroupSessionDecryptionStore} from "./stores/GroupSessionDecryptionStore";
 import {OperationStore} from "./stores/OperationStore";
-import {AccountDataStore} from "./stores/AccountDataStore.js";
+import {AccountDataStore} from "./stores/AccountDataStore";
 
 export class Transaction {
     constructor(txn, allowedStoreNames, IDBKeyRange) {

src/matrix/storage/idb/stores/AccountDataStore.ts

@@ -13,17 +13,26 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */
+import {Store} from "../Store";
+import {Content} from "../../types";
+
+interface AccountDataEntry {
+    type: string;
+    content: Content;
+}
 
 export class AccountDataStore {
-	constructor(store) {
+    private _store: Store<AccountDataEntry>;
+
+    constructor(store: Store<AccountDataEntry>) {
         this._store = store;
     }
 
-	async get(type) {
+    async get(type: string): Promise<AccountDataEntry | null> {
         return await this._store.get(type);
     }
 
-	set(event) {
+    set(event: AccountDataEntry): Promise<IDBValidKey> {
         return this._store.put(event);
     }
 }