public static string RaiseContractFailedEvent(ContractFailureKind failureKind, string userMessage, string conditionText, Exception innerException)
{
string resultFailureMessage = "Contract failed";
ContractHelper.RaiseContractFailedEventImplementation(failureKind, userMessage, conditionText, innerException, ref resultFailureMessage);
return(resultFailureMessage);
}
private static void RaiseContractFailedEventImplementation(ContractFailureKind failureKind, string userMessage, string conditionText, Exception innerException, ref string resultFailureMessage)
{
if (failureKind < ContractFailureKind.Precondition || failureKind > ContractFailureKind.Assume)
{
throw new ArgumentException(Environment.GetResourceString("Arg_EnumIllegalVal", (object)failureKind), "failureKind");
}
string str1 = "contract failed.";
ContractFailedEventArgs e = (ContractFailedEventArgs)null;
RuntimeHelpers.PrepareConstrainedRegions();
string str2;
try
{
str1 = ContractHelper.GetDisplayMessage(failureKind, userMessage, conditionText);
EventHandler <ContractFailedEventArgs> eventHandler = ContractHelper.contractFailedEvent;
if (eventHandler != null)
{
e = new ContractFailedEventArgs(failureKind, str1, conditionText, innerException);
foreach (EventHandler <ContractFailedEventArgs> invocation in eventHandler.GetInvocationList())
{
try
{
invocation((object)null, e);
}
catch (Exception ex)
{
e.thrownDuringHandler = ex;
e.SetUnwind();
}
}
if (e.Unwind)
{
if (Environment.IsCLRHosted)
{
ContractHelper.TriggerCodeContractEscalationPolicy(failureKind, str1, conditionText, innerException);
}
if (innerException == null)
{
innerException = e.thrownDuringHandler;
}
throw new ContractException(failureKind, str1, userMessage, conditionText, innerException);
}
}
}
finally
{
str2 = e == null || !e.Handled ? str1 : (string)null;
}
resultFailureMessage = str2;
}
private static void TriggerFailureImplementation(ContractFailureKind kind, string displayMessage, string userMessage, string conditionText, Exception innerException)
{
if (Environment.IsCLRHosted)
{
ContractHelper.TriggerCodeContractEscalationPolicy(kind, displayMessage, conditionText, innerException);
throw new ContractException(kind, displayMessage, userMessage, conditionText, innerException);
}
if (!Environment.UserInteractive)
{
throw new ContractException(kind, displayMessage, userMessage, conditionText, innerException);
}
string resourceString = Environment.GetResourceString(ContractHelper.GetResourceNameForFailure(kind));
Assert.Fail(conditionText, displayMessage, resourceString, -2146233022, StackTrace.TraceFormat.Normal, 2);
}
private static string GetDisplayMessage(ContractFailureKind failureKind, string userMessage, string conditionText)
{
string resourceNameForFailure = ContractHelper.GetResourceNameForFailure(failureKind);
string resourceString;
if (!string.IsNullOrEmpty(conditionText))
{
resourceString = Environment.GetResourceString(resourceNameForFailure + "_Cnd", (object)conditionText);
}
else
{
resourceString = Environment.GetResourceString(resourceNameForFailure);
}
if (!string.IsNullOrEmpty(userMessage))
{
return(resourceString + " " + userMessage);
}
return(resourceString);
}
public static void TriggerFailure(ContractFailureKind kind, string displayMessage, string userMessage, string conditionText, Exception innerException)
{
ContractHelper.TriggerFailureImplementation(kind, displayMessage, userMessage, conditionText, innerException);
}
private static void RaiseContractFailedEventImplementation(ContractFailureKind failureKind, string userMessage, string conditionText, Exception innerException, ref string resultFailureMessage)
{
if (failureKind < ContractFailureKind.Precondition || failureKind > ContractFailureKind.Assume)
{
throw new ArgumentException(Environment.GetResourceString("Arg_EnumIllegalVal", new object[]
{
failureKind
}), "failureKind");
}
string text = "contract failed.";
ContractFailedEventArgs contractFailedEventArgs = null;
RuntimeHelpers.PrepareConstrainedRegions();
string text2;
try
{
text = ContractHelper.GetDisplayMessage(failureKind, userMessage, conditionText);
EventHandler <ContractFailedEventArgs> eventHandler = ContractHelper.contractFailedEvent;
if (eventHandler != null)
{
contractFailedEventArgs = new ContractFailedEventArgs(failureKind, text, conditionText, innerException);
foreach (EventHandler <ContractFailedEventArgs> eventHandler2 in eventHandler.GetInvocationList())
{
try
{
eventHandler2(null, contractFailedEventArgs);
}
catch (Exception thrownDuringHandler)
{
contractFailedEventArgs.thrownDuringHandler = thrownDuringHandler;
contractFailedEventArgs.SetUnwind();
}
}
if (contractFailedEventArgs.Unwind)
{
if (Environment.IsCLRHosted)
{
ContractHelper.TriggerCodeContractEscalationPolicy(failureKind, text, conditionText, innerException);
}
if (innerException == null)
{
innerException = contractFailedEventArgs.thrownDuringHandler;
}
throw new ContractException(failureKind, text, userMessage, conditionText, innerException);
}
}
}
finally
{
if (contractFailedEventArgs != null && contractFailedEventArgs.Handled)
{
text2 = null;
}
else
{
text2 = text;
}
}
resultFailureMessage = text2;
}
