Imported Upstream version 6.4.0.137

Former-commit-id: 943baa9f16a098c33e129777827f3a9d20da00d6

mcs/class/System.Private.CoreLib/System/RuntimeFieldHandle.cs

@@ -0,0 +1,81 @@
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.Serialization;
+
+namespace System
+{
+	[Serializable]
+	public readonly struct RuntimeFieldHandle : ISerializable
+	{
+		readonly IntPtr value;
+
+		internal RuntimeFieldHandle (IntPtr v)
+		{
+			value = v;
+		}
+
+		RuntimeFieldHandle (SerializationInfo info, StreamingContext context)
+		{
+			throw new PlatformNotSupportedException ();
+		}
+
+		public void GetObjectData (SerializationInfo info, StreamingContext context)
+		{
+			throw new PlatformNotSupportedException ();
+		}
+
+		public IntPtr Value {
+			get {
+				return value;
+			}
+		}
+
+		internal bool IsNullHandle ()
+		{
+			return value == IntPtr.Zero;
+		}
+
+		public override bool Equals (object? obj)
+		{
+			if (obj == null || GetType () != obj.GetType ())
+				return false;
+
+			return value == ((RuntimeFieldHandle)obj).Value;
+		}
+
+		public bool Equals (RuntimeFieldHandle handle)
+		{
+			return value == handle.Value;
+		}
+
+		public override int GetHashCode ()
+		{
+			return value.GetHashCode ();
+		}
+
+		public static bool operator == (RuntimeFieldHandle left, RuntimeFieldHandle right)
+		{
+			return left.Equals (right);
+		}
+
+		public static bool operator != (RuntimeFieldHandle left, RuntimeFieldHandle right)
+		{
+			return !left.Equals (right);
+		}
+
+		[MethodImplAttribute(MethodImplOptions.InternalCall)]
+		static extern void SetValueInternal (FieldInfo fi, object obj, object value);
+
+		internal static void SetValue (RuntimeFieldInfo field, Object obj, Object value, RuntimeType fieldType, FieldAttributes fieldAttr, RuntimeType declaringType, ref bool domainInitialized)
+		{
+			SetValueInternal (field, obj, value);
+		}
+
+		[MethodImplAttribute(MethodImplOptions.InternalCall)]
+		static unsafe extern internal Object GetValueDirect (RuntimeFieldInfo field, RuntimeType fieldType, void *pTypedRef, RuntimeType contextType);
+
+		[MethodImplAttribute(MethodImplOptions.InternalCall)]
+		static unsafe extern internal void SetValueDirect (RuntimeFieldInfo field, RuntimeType fieldType, void* pTypedRef, Object value, RuntimeType contextType);
+	}
+
+}