50 lines
2.3 KiB
C#
50 lines
2.3 KiB
C#
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using System;
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using System.Linq;
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using System.Threading;
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namespace Swan
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{
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/// <summary>
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/// Provides extension methods for <see cref="Exception"/>.
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/// </summary>
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public static class ExceptionExtensions
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{
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/// <summary>
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/// Returns a value that tells whether an <see cref="Exception"/> is of a type that
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/// we better not catch and ignore.
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/// </summary>
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/// <param name="this">The exception being thrown.</param>
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/// <returns><see langword="true"/> if <paramref name="this"/> is a critical exception;
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/// otherwise, <see langword="false"/>.</returns>
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public static bool IsCriticalException(this Exception @this)
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=> @this.IsCriticalExceptionCore()
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|| (@this.InnerException?.IsCriticalException() ?? false)
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|| (@this is AggregateException aggregateException && aggregateException.InnerExceptions.Any(e => e.IsCriticalException()));
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/// <summary>
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/// Returns a value that tells whether an <see cref="Exception"/> is of a type that
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/// will likely cause application failure.
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/// </summary>
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/// <param name="this">The exception being thrown.</param>
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/// <returns><see langword="true"/> if <paramref name="this"/> is a fatal exception;
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/// otherwise, <see langword="false"/>.</returns>
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public static bool IsFatalException(this Exception @this)
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=> @this.IsFatalExceptionCore()
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|| (@this.InnerException?.IsFatalException() ?? false)
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|| (@this is AggregateException aggregateException && aggregateException.InnerExceptions.Any(e => e.IsFatalException()));
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private static bool IsCriticalExceptionCore(this Exception @this)
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=> IsFatalExceptionCore(@this)
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|| @this is AppDomainUnloadedException
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|| @this is BadImageFormatException
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|| @this is CannotUnloadAppDomainException
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|| @this is InvalidProgramException
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|| @this is NullReferenceException;
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private static bool IsFatalExceptionCore(this Exception @this)
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=> @this is StackOverflowException
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|| @this is OutOfMemoryException
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|| @this is ThreadAbortException
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|| @this is AccessViolationException;
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}
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}
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