Enable Rust client by default

Author: simolus3

packages/powersync_core/lib/src/sync/options.dart

@@ -57,8 +57,11 @@ final class SyncOptions {
 }
 
 /// The PowerSync SDK offers two different implementations for receiving sync
-/// lines: One handling most logic in Dart, and a newer one offloading that work
-/// to the native PowerSync extension.
+/// lines.
+///
+/// The recommended option is [rust], which can offload most work of the sync
+/// client to the native PowerSync extension. `.dart` is a legacy implementation
+/// that will be removed in a future release of the PowerSync Dart SDK.
 enum SyncClientImplementation {
   /// A sync implementation that decodes and handles sync lines in Dart.
   @Deprecated(
@@ -72,14 +75,10 @@ enum SyncClientImplementation {
   ///
   /// This implementation can be more performant than the Dart implementation,
   /// and supports receiving sync lines in a more efficient format.
-  ///
-  /// Note that this option is currently experimental.
-  @experimental
   rust;
 
   /// The default sync client implementation to use.
-  // ignore: deprecated_member_use_from_same_package
-  static const defaultClient = dart;
+  static const defaultClient = rust;
 }
 
 @internal

packages/powersync_core/test/sync/in_memory_sync_test.dart

@@ -30,17 +30,13 @@ void main() {
   group('rust sync client', () {
     _declareTests(
       'json',
-      SyncOptions(
-          syncImplementation: SyncClientImplementation.rust,
-          retryDelay: Duration(milliseconds: 200)),
+      SyncOptions(retryDelay: Duration(milliseconds: 200)),
       false,
     );
 
     _declareTests(
       'bson',
-      SyncOptions(
-          syncImplementation: SyncClientImplementation.rust,
-          retryDelay: Duration(milliseconds: 200)),
+      SyncOptions(retryDelay: Duration(milliseconds: 200)),
       true,
     );
   });

packages/powersync_core/test/test_server.dart

@@ -44,9 +44,8 @@ final class TestServer {
     maxConnectionCount = max(connectionCount, maxConnectionCount);
 
     stream() async* {
-      var blob = "*" * 5000;
       for (var i = 0; i < 50; i++) {
-        yield {"token_expires_in": tokenExpiresIn, "blob": blob};
+        yield {"token_expires_in": tokenExpiresIn};
         await Future<void>.delayed(Duration(microseconds: 1));
       }
     }