Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/mscorlib/system/io/ioexception.cs

@@ -0,0 +1,70 @@
+// ==++==
+// 
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// 
+// ==--==
+/*============================================================
+**
+** Class:  IOException
+** 
+** <OWNER>[....]</OWNER>
+**
+**
+** Purpose: Exception for a generic IO error.
+**
+**
+===========================================================*/
+
+using System;
+using System.Runtime.Serialization;
+
+namespace System.IO {
+
+    [Serializable]
+[System.Runtime.InteropServices.ComVisible(true)]
+    public class IOException : SystemException
+    {
+        // For debugging purposes, store the complete path in the IOException
+        // if possible.  Don't give it back to users due to security concerns.
+        // Let the code that throws the exception worry about that.  But we can
+        // at least assist people attached to the process with a managed 
+        // debugger.  Don't serialize it to avoid any security problems.
+        // This information isn't guaranteed to be correct, but is our second 
+        // best effort at a file or directory involved, after the exception 
+        // message.
+        [NonSerialized]
+        private String _maybeFullPath;  // For debuggers on partial trust code
+
+        public IOException() 
+            : base(Environment.GetResourceString("Arg_IOException")) {
+            SetErrorCode(__HResults.COR_E_IO);
+        }
+        
+        public IOException(String message) 
+            : base(message) {
+            SetErrorCode(__HResults.COR_E_IO);
+        }
+
+        public IOException(String message, int hresult) 
+            : base(message) {
+            SetErrorCode(hresult);
+        }
+
+        // Adding this for debuggers when looking at exceptions in partial
+        // trust code that may not have interesting path information in
+        // the exception message.
+        internal IOException(String message, int hresult, String maybeFullPath) 
+            : base(message) {
+            SetErrorCode(hresult);
+            _maybeFullPath = maybeFullPath;
+        }
+        
+        public IOException(String message, Exception innerException) 
+            : base(message, innerException) {
+            SetErrorCode(__HResults.COR_E_IO);
+        }
+
+        protected IOException(SerializationInfo info, StreamingContext context) : base (info, context) {
+        }
+    }
+}