1 files changed, 35 insertions, 0 deletions
diff --git a/src/mscorlib/src/System/Reflection/FieldInfo.CoreCLR.cs b/src/mscorlib/src/System/Reflection/FieldInfo.CoreCLR.cs
new file mode 100644
index 0000000000..bcda3418fa
--- /dev/null
+++ b/src/mscorlib/src/System/Reflection/FieldInfo.CoreCLR.cs
@@ -0,0 +1,35 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Globalization;
+
+namespace System.Reflection
+{
+    public abstract partial class FieldInfo : MemberInfo
+    {
+        public static FieldInfo GetFieldFromHandle(RuntimeFieldHandle handle)
+        {
+            if (handle.IsNullHandle())
+                throw new ArgumentException(SR.Argument_InvalidHandle, nameof(handle));
+
+            FieldInfo f = RuntimeType.GetFieldInfo(handle.GetRuntimeFieldInfo());
+
+            Type declaringType = f.DeclaringType;
+            if (declaringType != null && declaringType.IsGenericType)
+                throw new ArgumentException(String.Format(
+                    CultureInfo.CurrentCulture, SR.Argument_FieldDeclaringTypeGeneric,
+                    f.Name, declaringType.GetGenericTypeDefinition()));
+
+            return f;
+        }
+
+        public static FieldInfo GetFieldFromHandle(RuntimeFieldHandle handle, RuntimeTypeHandle declaringType)
+        {
+            if (handle.IsNullHandle())
+                throw new ArgumentException(SR.Argument_InvalidHandle);
+
+            return RuntimeType.GetFieldInfo(declaringType.GetRuntimeType(), handle.GetRuntimeFieldInfo());
+        }
+    }
+}