CriticalExceptions.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Base / MS / Internal / CriticalExceptions.cs / 1305600 / CriticalExceptions.cs
                        

                        
                            using System; 

#if PBTCOMPILER
namespace MS.Internal.Markup
#elif SYSTEM_XAML 
namespace System.Xaml
#else 
using MS.Internal.WindowsBase; // FriendAccessAllowed 
namespace MS.Internal
#endif 
{
    #if !PBTCOMPILER && !SYSTEM_XAML
    [FriendAccessAllowed]
    #endif 
    internal static class CriticalExceptions
    { 
        // these are all the exceptions considered critical by PreSharp 
        #if !PBTCOMPILER && !SYSTEM_XAML
        [FriendAccessAllowed] 
        #endif
        internal static bool IsCriticalException(Exception ex)
        {
            ex = Unwrap(ex); 

            return ex is NullReferenceException || 
                   ex is StackOverflowException || 
                   ex is OutOfMemoryException   ||
                   ex is System.Threading.ThreadAbortException || 
                   ex is System.Runtime.InteropServices.SEHException ||
                   ex is System.Security.SecurityException;
        }
 
        // these are exceptions that we should treat as critical when they
        // arise during callbacks into application code 
        #if !PBTCOMPILER && !SYSTEM_XAML 
        [FriendAccessAllowed]
        internal static bool IsCriticalApplicationException(Exception ex) 
        {
            ex = Unwrap(ex);

            return ex is StackOverflowException || 
                   ex is OutOfMemoryException   ||
                   ex is System.Threading.ThreadAbortException || 
                   ex is System.Security.SecurityException; 
        }
        #endif 

        #if !PBTCOMPILER && !SYSTEM_XAML
        [FriendAccessAllowed]
        #endif 
        internal static Exception Unwrap(Exception ex)
        { 
            // for certain types of exceptions, we care more about the inner 
            // exception
            while (ex.InnerException != null && 
                    (   ex is System.Reflection.TargetInvocationException
                    ))
            {
                ex = ex.InnerException; 
            }
 
            return ex; 
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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