103 lines
3.5 KiB
C#
103 lines
3.5 KiB
C#
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// ==++==
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// ==--==
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namespace System.Diagnostics {
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using System;
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using System.Reflection;
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using System.Runtime.CompilerServices;
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using Microsoft.Singularity;
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// Class which handles code asserts. Asserts are used to explicitly protect
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// assumptions made in the code. In general if an assert fails, it indicates
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// a program bug so is immediately called to the attention of the user.
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//| <include path='docs/doc[@for="Assert"]/*' />
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internal class Assert
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{
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private static AssertFilter[] ListOfFilters = null;
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private static int iNumOfFilters = 0;
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private static int iFilterArraySize = 0;
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private static AssertFilter DefFil = new DefaultFilter();
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// AddFilter adds a new assert filter. This replaces the current
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// filter, unless the filter returns FailContinue.
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//
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//| <include path='docs/doc[@for="Assert.AddFilter"]/*' />
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public static void AddFilter(AssertFilter filter)
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{
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if (iFilterArraySize <= iNumOfFilters)
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{
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AssertFilter[] newFilterArray = new AssertFilter [iFilterArraySize+2];
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if (iNumOfFilters > 0)
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Array.Copy(ListOfFilters, newFilterArray, iNumOfFilters);
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iFilterArraySize += 2;
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ListOfFilters = newFilterArray;
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}
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ListOfFilters [iNumOfFilters++] = filter;
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}
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// Called when an assertion is being made.
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//
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//| <include path='docs/doc[@for="Assert.Check"]/*' />
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public static void Check(bool condition, String conditionString, String message)
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{
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if (!condition)
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{
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Fail (conditionString, message);
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}
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}
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//| <include path='docs/doc[@for="Assert.Fail"]/*' />
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public static void Fail(String conditionString, String message)
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{
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// Run through the list of filters backwards (the last filter in the list
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// is the default filter. So we're guaranteed that there will be at least
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// one filter to handle the assert.
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int iTemp = iNumOfFilters;
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while (iTemp > 0)
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{
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AssertFilters iResult = ListOfFilters [--iTemp].AssertFailure (conditionString, message);
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if (iResult == AssertFilters.FailDebug)
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{
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#if SINGULARITY_KERNEL
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DebugStub.Break();
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#elif SINGULARITY_PROCESS
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VTable.DebugBreak();
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#endif
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break;
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}
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else if (iResult == AssertFilters.FailTerminate)
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#if SINGULARITY_KERNEL
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Kernel.Shutdown(-1);
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#elif SINGULARITY_PROCESS
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AppRuntime.Stop(-1);
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#endif
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else if (iResult == AssertFilters.FailIgnore)
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break;
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// If none of the above, it means that the Filter returned FailContinue.
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// So invoke the next filter.
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}
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}
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// Called when an assertion fails.
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//
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//| <include path='docs/doc[@for="Assert.ShowDefaultAssertDialog"]/*' />
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public static int ShowDefaultAssertDialog(String conditionString, String message) {
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throw new Exception("System.Diagnostics.Assert.ShowDefaultAssertDialog not implemented in Bartok!");
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}
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}
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}
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