Imported Upstream version 2.0.0.11353upstream/2.0.0.11353

1 files changed, 43 insertions, 0 deletions

diff --git a/src/mscorlib/src/System/IO/FileLoadException.CoreCLR.cs b/src/mscorlib/src/System/IO/FileLoadException.CoreCLR.cs
new file mode 100644
index 0000000000..f6415670e3
--- /dev/null
+++ b/src/mscorlib/src/System/IO/FileLoadException.CoreCLR.cs
@@ -0,0 +1,43 @@
+// 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;
+using System.Runtime.InteropServices;
+using System.Runtime.CompilerServices;
+using System.Security;
+
+namespace System.IO
+{
+    public partial class FileLoadException
+    {
+        // Do not delete: this is invoked from native code.
+        private FileLoadException(string fileName, string fusionLog, int hResult)
+            : base(null)
+        {
+            HResult = hResult;
+            FileName = fileName;
+            FusionLog = fusionLog;
+            _message = FormatFileLoadExceptionMessage(FileName, HResult);
+        }
+
+        internal static string FormatFileLoadExceptionMessage(string fileName, int hResult)
+        {
+            string format = null;
+            GetFileLoadExceptionMessage(hResult, JitHelpers.GetStringHandleOnStack(ref format));
+
+            string message = null;
+            GetMessageForHR(hResult, JitHelpers.GetStringHandleOnStack(ref message));
+
+            return string.Format(CultureInfo.CurrentCulture, format, fileName, message);
+        }
+
+        [DllImport(JitHelpers.QCall, CharSet = CharSet.Unicode)]
+        [SuppressUnmanagedCodeSecurity]
+        private static extern void GetFileLoadExceptionMessage(int hResult, StringHandleOnStack retString);
+
+        [DllImport(JitHelpers.QCall, CharSet = CharSet.Unicode)]
+        [SuppressUnmanagedCodeSecurity]
+        private static extern void GetMessageForHR(int hresult, StringHandleOnStack retString);
+    }
+}