Added HasValue and ifSome/None, and Member not null; for Option.Value

Functional/Option.cs

@@ -20,6 +20,7 @@ public readonly struct Option<T> : IOption<T>,
     public T? Value => _value;
 
     [MemberNotNullWhen(true, nameof(HasValue), nameof(_value))]
+    [MemberNotNullWhen(true, nameof(HasValue), nameof(Value))]
     public bool HasValue {get;init;}
 
     public static Option<T> Some(T value) => new Option<T>(value, true);

Functional/OptionExtensions.cs

@@ -1,5 +1,7 @@
 using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
 using System.Numerics;
+using Microsoft.VisualBasic;
 
 namespace SJK.Functional;
 
@@ -97,6 +99,27 @@ public static partial class OptionExtensions
     }
     return Option<T>.None;
   }
+  public static bool HasValue<T>(this Option<T> option,[NotNullWhen(true)] out T result)
+  {
+    result = option.Value!;
+    return option.HasValue;
+  } 
+  public static bool IfSome<T>(this Option<T> option, Action<T> action)
+  {
+    if (option.HasValue)
+    {
+      action(option.Value);
+    }
+    return option.HasValue;
+  }
+  public static bool IfNone<T>(this Option<T> option, Action action)
+  {
+    if (!option.HasValue)
+    {
+      action();
+    }
+    return !option.HasValue;
+  }
   public static Option<T> ToOption<T>(this T? value) => value is null ? Option<T>.None : Option<T>.Some(value);