feat: Move the Result type into moxlib

Now, `import 'package:moxlib/moxlib.dart';` is enough.

analysis_options.yaml

@@ -6,10 +6,3 @@ linter:
     use_setters_to_change_properties: false
     avoid_positional_boolean_parameters: false
     avoid_bool_literals_in_conditional_expressions: false
-
-analyzer:
-  exclude:
-    - "**/*.g.dart"
-    - "**/*.freezed.dart"
-    - "test/"
-    - "integration_test/"

flake.lock

@@ -2,11 +2,11 @@
   "nodes": {
     "flake-utils": {
       "locked": {
-        "lastModified": 1667395993,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "lastModified": 1656065134,
+        "narHash": "sha256-oc6E6ByIw3oJaIyc67maaFcnjYOz1mMcOtHxbEf9NwQ=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "rev": "bee6a7250dd1b01844a2de7e02e4df7d8a0a206c",
         "type": "github"
       },
       "original": {
@@ -17,16 +17,16 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1667610399,
-        "narHash": "sha256-XZd0f4ZWAY0QOoUSdiNWj/eFiKb4B9CJPtl9uO9SYY4=",
-        "owner": "NixOS",
+        "lastModified": 1657540956,
+        "narHash": "sha256-ihGbOFWtAkENwxBE5kV/yWt2MncvW+BObLDsmxCLo/Q=",
+        "owner": "NANASHI0X74",
         "repo": "nixpkgs",
-        "rev": "1dd8696f96db47156e1424a49578fe7dd4ce99a4",
+        "rev": "043de04db8a6b0391b3fefaaade160514d866946",
         "type": "github"
       },
       "original": {
-        "owner": "NixOS",
-        "ref": "nixpkgs-unstable",
+        "owner": "NANASHI0X74",
+        "ref": "flutter-3-0-0",
         "repo": "nixpkgs",
         "type": "github"
       }

flake.nix

@@ -1,7 +1,7 @@
 {
   description = "moxlib";
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "github:NANASHI0X74/nixpkgs/flutter-3-0-0";
     flake-utils.url = "github:numtide/flake-utils";
   };
 

lib/lists.dart

@@ -1,16 +0,0 @@
-/// A wrapper around List<T>.firstWhere that does not throw but instead just
-/// returns true if [test] returns true for an element or false if [test] never
-/// returned true.
-bool listContains<T>(List<T> list, bool Function(T element) test) {
-  return firstWhereOrNull<T>(list, test) != null;
-}
-
-/// A wrapper around [List<T>.firstWhere] that does not throw but instead just
-/// return null if [test] never returned true
-T? firstWhereOrNull<T>(List<T> list, bool Function(T element) test) {
-  try {
-    return list.firstWhere(test);
-  } catch(e) {
-    return null;
-  }
-}

lib/moxlib.dart

@@ -1,5 +1,5 @@
 library moxlib;
 
-export 'awaitabledatasender.dart';
-export 'lists.dart';
-export 'math.dart';
+export 'src/awaitabledatasender.dart';
+export 'src/math.dart';
+export 'src/result.dart';

lib/src/awaitabledatasender.dart

@@ -30,12 +30,12 @@ class DataWrapper<T extends JsonImplementation> {
   /// The actual data.
   final T data;
 
-  Map<String, dynamic> toJson() => {
-    'id': id,
-    'data': data.toJson()
-  };
+  Map<String, dynamic> toJson() => {'id': id, 'data': data.toJson()};
 
-  static DataWrapper fromJson<T extends JsonImplementation>(Map<String, dynamic> json) => DataWrapper<T>(
+  static DataWrapper fromJson<T extends JsonImplementation>(
+    Map<String, dynamic> json,
+  ) =>
+      DataWrapper<T>(
         json['id']! as String,
         json['data']! as T,
       );
@@ -49,10 +49,8 @@ class DataWrapper<T extends JsonImplementation> {
 ///
 /// awaiting [sendData] will return a [Future] that will resolve to the reresponse when
 /// received via [onData].
-abstract class AwaitableDataSender<
-  S extends JsonImplementation,
-  R extends JsonImplementation
-> {
+abstract class AwaitableDataSender<S extends JsonImplementation,
+    R extends JsonImplementation> {
   @mustCallSuper
   AwaitableDataSender();
 
@@ -82,7 +80,11 @@ abstract class AwaitableDataSender<
   /// Sends [data] using [sendDataImpl]. If [awaitable] is true, then a
   /// Future will be returned that can be used to await a response. If it
   /// is false, then null will be imediately resolved.
-  Future<R?> sendData(S data, { bool awaitable = true, @visibleForTesting String? id }) async {
+  Future<R?> sendData(
+    S data, {
+    bool awaitable = true,
+    @visibleForTesting String? id,
+  }) async {
     // ignore: no_leading_underscores_for_local_identifiers
     final _id = id ?? _uuid.v4();
     var future = Future<R?>.value();

lib/src/result.dart

@@ -0,0 +1,24 @@
+/// Holds a value of either [T] or [V].
+class Result<T, V> {
+  /// Constructs a result. [_data] must be either of type [T] or [V].
+  const Result(this._data)
+      : assert(
+          _data is T || _data is V,
+          'Invalid data type $_data: Must be either $T or $V',
+        );
+  final dynamic _data;
+
+  /// Returns true if the data contained within is of type [S]. If not, returns false.
+  bool isType<S>() => _data is S;
+
+  /// Returns the data contained within cast to [S]. Before doing this call, it's recommended
+  /// to check isType<S>() first.
+  S get<S>() {
+    assert(_data is S, 'Data is not $S');
+
+    return _data as S;
+  }
+
+  /// Returns the runtime type of the data.
+  Object get dataRuntimeType => _data.runtimeType;
+}

pubspec.yaml

@@ -1,11 +1,11 @@
 name: moxlib
-description: A collection of code for sharing between various moxxy libraries. Not inteded for outside use.
-version: 0.1.5
+description: A collection of code for sharing between various moxxy libraries. Not intended for outside use.
+version: 0.2.0
 homepage: https://codeberg.org/moxxy/moxlib
 publish_to: https://git.polynom.me/api/packages/Moxxy/pub
 
 environment:
-  sdk: ">=2.17.0-266.1.beta <3.0.0"
+  sdk: ">=2.17.0 <3.0.0"
 
 dependencies:
   logging: ^1.0.2

test/awaitabledatasender_test.dart

@@ -1,29 +1,23 @@
-import "package:moxlib/awaitabledatasender.dart";
-
-import "package:test/test.dart";
+import 'package:moxlib/moxlib.dart';
+import 'package:test/test.dart';
 
 class TestDataType implements JsonImplementation {
-  final String data;
-
   TestDataType(this.data);
 
-  @override
-  Map<String, dynamic> toJson() => {
-    "data": data
-  };
+  factory TestDataType.fromJson(Map<String, dynamic> json) =>
+      TestDataType(json['data']! as String);
 
-  factory TestDataType.fromJson(Map<String, dynamic> json) => TestDataType(
-    json["data"]!
-  );
+  final String data;
+
+  @override
+  Map<String, dynamic> toJson() => {'data': data};
 }
 
-class FakeAwaitableDataSender<
-  S extends JsonImplementation,
-  R extends JsonImplementation
-> extends AwaitableDataSender<S, R> {
-  final void Function()? onAddFunc;
+class FakeAwaitableDataSender<S extends JsonImplementation,
+    R extends JsonImplementation> extends AwaitableDataSender<S, R> {
+  FakeAwaitableDataSender({this.onAddFunc}) : super();
 
-  FakeAwaitableDataSender({ this.onAddFunc }) : super();
+  final void Function()? onAddFunc;
 
   @override
   Future<void> sendDataImpl(DataWrapper data) async {}
@@ -35,39 +29,41 @@ class FakeAwaitableDataSender<
 }
 
 void main() {
-  test("Sending an event without awaiting it", () async {
+  test('Sending an event without awaiting it', () async {
     final handler = FakeAwaitableDataSender<TestDataType, TestDataType>();
-      final result = await handler.sendData(TestDataType("hallo"), awaitable: false);
+    final result =
+        await handler.sendData(TestDataType('hallo'), awaitable: false);
 
     expect(result, null);
     expect(handler.getAwaitables().length, 0);
   });
 
-  test("Sending an event without awaiting it", () async {
+  test('Sending an event without awaiting it', () async {
     final handler = FakeAwaitableDataSender<TestDataType, TestDataType>();
-      const id = "abc123";
-      final result = handler.sendData(TestDataType("hallo"), awaitable: true, id: id);
-      await handler.onData(DataWrapper(id, TestDataType("welt")));
+    const id = 'abc123';
+    final result =
+        handler.sendData(TestDataType('hallo'), awaitable: true, id: id);
+    await handler.onData(DataWrapper(id, TestDataType('welt')));
 
-      expect((await result)!.data, "welt");
+    expect((await result)!.data, 'welt');
     expect(handler.getAwaitables().length, 0);
   });
 
-  test("Queue multiple data packets and resolve in reverse order", () async {
-      int i = 0;
+  test('Queue multiple data packets and resolve in reverse order', () async {
+    var i = 0;
     final handler = FakeAwaitableDataSender<TestDataType, TestDataType>(
       onAddFunc: () {
         i++;
         expect(i <= 2, true);
-        }
+      },
     );
-      final a = handler.sendData(TestDataType("1"), id: "1");
-      final b = handler.sendData(TestDataType("2"), id: "2");
+    final a = handler.sendData(TestDataType('1'), id: '1');
+    final b = handler.sendData(TestDataType('2'), id: '2');
 
-      await handler.onData(DataWrapper("2", TestDataType("4")));
-      await handler.onData(DataWrapper("1", TestDataType("1")));
+    await handler.onData(DataWrapper('2', TestDataType('4')));
+    await handler.onData(DataWrapper('1', TestDataType('1')));
 
-      expect((await a)!.data, "1");
-      expect((await b)!.data, "4");
+    expect((await a)!.data, '1');
+    expect((await b)!.data, '4');
   });
 }

test/math_test.dart

@@ -1,10 +1,9 @@
-import "package:moxlib/math.dart";
-
-import "package:test/test.dart";
+import 'package:moxlib/moxlib.dart';
+import 'package:test/test.dart';
 
 void main() {
-  group("implies", () {
-      test("Truth table test", () {
+  group('implies', () {
+    test('Truth table test', () {
       expect(implies(true, true), true);
       expect(implies(true, false), false);
       expect(implies(false, true), true);