baseline: OpenMU upstream b5a0961 (fresh source)

src/GameLogic/LazyExtensions.cs

@@ -0,0 +1,39 @@
+// <copyright file="LazyExtensions.cs" company="MUnique">
+// Licensed under the MIT License. See LICENSE file in the project root for full license information.
+// </copyright>
+
+namespace MUnique.OpenMU.GameLogic;
+
+/// <summary>
+/// Extensions for <see cref="Lazy{T}"/>.
+/// </summary>
+public static class LazyExtensions
+{
+    /// <summary>
+    /// Disposes the value of the lazy instance, if it was created, asynchronously.
+    /// </summary>
+    /// <typeparam name="T">The type of the <see cref="IAsyncDisposable"/>.</typeparam>
+    /// <param name="lazy">The lazy instance.</param>
+    public static async ValueTask DisposeIfCreatedAsync<T>(this Lazy<T> lazy)
+        where T : IAsyncDisposable
+    {
+        if (lazy.IsValueCreated)
+        {
+            await lazy.Value.DisposeAsync().ConfigureAwait(false);
+        }
+    }
+
+    /// <summary>
+    /// Disposes the value of the lazy instance, if created.
+    /// </summary>
+    /// <typeparam name="T">The <see cref="IDisposable"/>.</typeparam>
+    /// <param name="lazy">The lazy instance.</param>
+    public static void DisposeIfCreated<T>(this Lazy<T> lazy)
+        where T : IDisposable
+    {
+        if (lazy.IsValueCreated)
+        {
+            lazy.Value.Dispose();
+        }
+    }
+}