public static void EmitExceptionLogic(Cosmos.Assembler.Assembler aAssembler, MethodInfo aMethodInfo, ILOpCode aCurrentOpCode, bool aDoTest, Action aCleanup, string aJumpTargetNoException)
{
string xJumpTo = null;
if (aCurrentOpCode != null && aCurrentOpCode.CurrentExceptionHandler != null)
{
// todo add support for nested handlers, see comment in Engine.cs
//if (!((aMethodInfo.CurrentHandler.HandlerOffset < aCurrentOpOffset) || (aMethodInfo.CurrentHandler.HandlerLength + aMethodInfo.CurrentHandler.HandlerOffset) <= aCurrentOpOffset)) {
new Comment(String.Format("CurrentOffset = {0}, HandlerStartOffset = {1}", aCurrentOpCode.Position, aCurrentOpCode.CurrentExceptionHandler.HandlerOffset));
if (aCurrentOpCode.CurrentExceptionHandler.HandlerOffset > aCurrentOpCode.Position)
{
switch (aCurrentOpCode.CurrentExceptionHandler.Flags)
{
case ExceptionHandlingClauseOptions.Clause: {
xJumpTo = ILOp.GetLabel(aMethodInfo, aCurrentOpCode.CurrentExceptionHandler.HandlerOffset);
break;
}
case ExceptionHandlingClauseOptions.Finally: {
xJumpTo = ILOp.GetLabel(aMethodInfo, aCurrentOpCode.CurrentExceptionHandler.HandlerOffset);
break;
}
default: {
throw new Exception("ExceptionHandlerType '" + aCurrentOpCode.CurrentExceptionHandler.Flags.ToString() + "' not supported yet!");
}
}
}
}
// if aDoTest is true, we check ECX for exception flags
if (!aDoTest)
{
//new CPU.Call("_CODE_REQUESTED_BREAK_");
if (xJumpTo == null)
{
Jump_Exception(aMethodInfo);
}
else
{
new CPU.Jump {
DestinationLabel = xJumpTo
};
}
}
else
{
new CPU.Test {
DestinationReg = CPU.Registers.ECX, SourceValue = 2
};
if (aCleanup != null)
{
new CPU.ConditionalJump {
Condition = CPU.ConditionalTestEnum.Equal, DestinationLabel = aJumpTargetNoException
};
aCleanup();
if (xJumpTo == null)
{
new CPU.ConditionalJump {
Condition = CPU.ConditionalTestEnum.NotEqual, DestinationLabel = GetMethodLabel(aMethodInfo) + AppAssembler.EndOfMethodLabelNameException
};
}
else
{
new CPU.ConditionalJump {
Condition = CPU.ConditionalTestEnum.NotEqual, DestinationLabel = xJumpTo
};
}
}
else
{
if (xJumpTo == null)
{
new CPU.ConditionalJump {
Condition = CPU.ConditionalTestEnum.NotEqual, DestinationLabel = GetMethodLabel(aMethodInfo) + AppAssembler.EndOfMethodLabelNameException
};
}
else
{
new CPU.ConditionalJump {
Condition = CPU.ConditionalTestEnum.NotEqual, DestinationLabel = xJumpTo
};
}
}
}
}
public static void EmitExceptionLogic(Cosmos.Assembler.Assembler aAssembler, MethodInfo aMethodInfo, ILOpCode aCurrentOpCode, bool aDoTest, Action aCleanup)
{
EmitExceptionLogic(aAssembler, aMethodInfo, aCurrentOpCode, aDoTest, aCleanup, ILOp.GetLabel(aMethodInfo, aCurrentOpCode.NextPosition));
}
