feat: Move the Result type into moxlib

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

lib/moxlib.dart

@@ -1,4 +1,5 @@
 library moxlib;
 
-export 'awaitabledatasender.dart';
-export 'math.dart';
+export 'src/awaitabledatasender.dart';
+export 'src/math.dart';
+export 'src/result.dart';

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

@@ -1,6 +1,6 @@
 name: moxlib
 description: A collection of code for sharing between various moxxy libraries. Not intended for outside use.
-version: 0.1.5
+version: 0.2.0
 homepage: https://codeberg.org/moxxy/moxlib
 publish_to: https://git.polynom.me/api/packages/Moxxy/pub
 

test/awaitabledatasender_test.dart

@@ -1,5 +1,4 @@
-import 'package:moxlib/awaitabledatasender.dart';
-
+import 'package:moxlib/moxlib.dart';
 import 'package:test/test.dart';
 
 class TestDataType implements JsonImplementation {

test/math_test.dart

@@ -1,5 +1,4 @@
-import 'package:moxlib/math.dart';
-
+import 'package:moxlib/moxlib.dart';
 import 'package:test/test.dart';
 
 void main() {