JsExecutorRegistry class

Registry for JavaScript executor instances

Provides centralized management of JavaScript executor configuration. Replaces the old global _jsExecutorInstance pattern with a cleaner registry-based approach.

Usage

Registration

Register a JS executor once at application startup:

import 'package:web_query/js.dart';

void main() {
  // Register the executor
  JsExecutorRegistry.register(FlutterJsExecutor());

  // Now jseval transforms will work
  runApp(MyApp());
}

Checking Configuration

if (JsExecutorRegistry.isConfigured) {
  print('JS executor is ready');
} else {
  print('JS executor not configured');
}

Testing

Clear the executor between tests:

tearDown(() {
  JsExecutorRegistry.clear();
});

Migration from Old API

The old global pattern has been replaced:

// Old (deprecated)
setJsExecutorInstance(FlutterJsExecutor());

// New (preferred)
JsExecutorRegistry.register(FlutterJsExecutor());

The old setJsExecutorInstance() function still works but is deprecated.

Thread Safety

This registry uses a static field and is not thread-safe. Register the executor once during application initialization before any concurrent access.