feat!: use interface modifier for Scripting API definitions

Author: JKRhb

lib/src/scripting_api/consumed_thing.dart

@@ -25,7 +25,7 @@ typedef ErrorListener = void Function(Exception data);
 /// See [WoT Scripting API Specification, Section 8][spec link].
 ///
 /// [spec link]: https://w3c.github.io/wot-scripting-api/#the-consumedthing-interface
-abstract class ConsumedThing {
+abstract interface class ConsumedThing {
   /// Returns the [ThingDescription] that represents the consumed Thing.
   ThingDescription get thingDescription;
 

lib/src/scripting_api/discovery/thing_discovery.dart

@@ -12,7 +12,7 @@ import 'thing_filter.dart';
 /// Note: This interface definition does not conform to the current Scripting
 ///       API specification, which is still a Work-in-Progress when it comes
 ///       to discovery.
-abstract class ThingDiscovery implements Stream<ThingDescription> {
+abstract interface class ThingDiscovery implements Stream<ThingDescription> {
   /// The [thingFilter] that is applied during the discovery process.
   ThingFilter? get thingFilter;
 

lib/src/scripting_api/exposed_thing.dart

@@ -45,7 +45,7 @@ typedef EventListenerHandler = Future<InteractionInput> Function();
 /// See [WoT Scripting API Specification, Section 9][spec link].
 ///
 /// [spec link]: https://w3c.github.io/wot-scripting-api/#the-exposedthing-interface
-abstract class ExposedThing {
+abstract interface class ExposedThing {
   /// The [ThingDescription] that represents this [ExposedThing].
   ThingDescription get thingDescription;
 

lib/src/scripting_api/interaction_options.dart

@@ -13,7 +13,7 @@ import 'package:meta/meta.dart';
 ///
 /// [spec link]: https://w3c.github.io/wot-scripting-api/#the-interactionoptions-dictionary
 @immutable
-class InteractionOptions {
+final class InteractionOptions {
   /// Constructor
   const InteractionOptions({this.formIndex, this.uriVariables, this.data});
 

lib/src/scripting_api/interaction_output.dart

@@ -14,7 +14,7 @@ import '../definitions/form.dart';
 /// See [WoT Scripting API Specification, Section 7.2][spec link].
 ///
 /// [spec link]: https://w3c.github.io/wot-scripting-api/#the-interactionoutput-interface
-abstract class InteractionOutput {
+abstract interface class InteractionOutput {
   /// The raw payload of the [InteractionOutput] as a Byte [Stream].
   Stream<List<int>>? get data;
 

lib/src/scripting_api/subscription.dart

@@ -40,7 +40,7 @@ enum SubscriptionType {
 }
 
 /// Represents a subscription to Property change and Event interactions.
-abstract class Subscription {
+abstract interface class Subscription {
   /// Denotes whether the subsciption is active, i.e. it is not stopped because
   /// of an error or because of invocation of the [stop] method.
   bool get active;

lib/src/scripting_api/wot.dart

@@ -16,7 +16,7 @@ import 'types.dart';
 ///
 /// See WoT Scripting API specification,
 /// [section 5](https://w3c.github.io/wot-scripting-api/#the-wot-namespace)
-abstract class WoT {
+abstract interface class WoT {
   /// Asynchronously creates a [ConsumedThing] from a [thingDescription].
   ///
   /// This [ConsumedThing] can then be used to perform interactions with the