From b2187bc5ed79e44f700e65ecaf4ce41fce84a235 Mon Sep 17 00:00:00 2001
From: sakno <roman.sakno@gmail.com>
Date: Wed, 14 Aug 2024 22:33:24 +0300
Subject: [PATCH] Added support of anonymous value reference

---
 src/DotNext.Tests/Runtime/ValueReferenceTests.cs | 10 ++++++++++
 src/DotNext/Runtime/ValueReference.cs            | 14 ++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/src/DotNext.Tests/Runtime/ValueReferenceTests.cs b/src/DotNext.Tests/Runtime/ValueReferenceTests.cs
index 0016f733f..a38fb6f09 100644
--- a/src/DotNext.Tests/Runtime/ValueReferenceTests.cs
+++ b/src/DotNext.Tests/Runtime/ValueReferenceTests.cs
@@ -94,6 +94,16 @@ public static void ImmutableEmptyRef()
         Null(reference.ToString());
     }
 
+    [Fact]
+    public static void AnonymousValue()
+    {
+        var reference = new ValueReference<int>(42);
+        Equal(42, reference.Value);
+
+        ReadOnlyValueReference<int> roRef = reference;
+        Equal(42, roRef.Value);
+    }
+
     private record class MyClass : IResettable
     {
         internal int Field;
diff --git a/src/DotNext/Runtime/ValueReference.cs b/src/DotNext/Runtime/ValueReference.cs
index e5f540fd4..6819f349b 100644
--- a/src/DotNext/Runtime/ValueReference.cs
+++ b/src/DotNext/Runtime/ValueReference.cs
@@ -28,6 +28,20 @@ public ValueReference(T[] array, int index)
     {
     }
 
+    private ValueReference(StrongBox<T> box)
+        : this(box, ref box.Value!)
+    {
+    }
+
+    /// <summary>
+    /// Creates a reference to the anonymous value.
+    /// </summary>
+    /// <param name="value">The anonymous value.</param>
+    public ValueReference(T value)
+        : this(new StrongBox<T> { Value = value })
+    {
+    }
+
     /// <summary>
     /// Gets a value indicating that is reference is empty.
     /// </summary>