void BeginCatch(ISehHandlerBlock block, AbcCode code, AbcExceptionHandler e, ref int var, bool dupException, bool catchAnyException)
{
var beginIndex = code.Count;
var catchInfo = new CatchInfo
{
CatchAnyException = catchAnyException
};
bool coerceAny = catchAnyException;
if (var < 0 || catchAnyException)
{
coerceAny = true;
var = SharedExceptionVar;
catchInfo.IsTempVar = true;
}
catchInfo.ExceptionVar = var;
e.LocalVariable = var;
var handlerInfo = block.Tag as SehHandlerInfo;
if (handlerInfo == null)
{
handlerInfo = new SehHandlerInfo {
CatchInfo = catchInfo
};
block.Tag = handlerInfo;
}
else
{
handlerInfo.CatchInfo = catchInfo;
}
//NOTE: we store exception in temp variable to use for rethrow operation
if (dupException && !catchAnyException)
{
code.Dup();
}
if (coerceAny)
{
code.CoerceAnyType();
}
//store exception in variable to use for rethrow operation
code.SetLocal(var);
_resolver.Add(code[beginIndex], new ExceptionTarget(e));
}
private void InitPointers(AbcCode code)
{
if (!HasActivationVar)
{
return;
}
if (AbcGenConfig.UseActivationTraits)
{
code.NewActivation();
if (AbcGenConfig.UseFuncPointers)
{
code.Dup();
code.PushThisScope();
code.PushScope();
}
}
else
{
code.CreateInstance(_activation);
}
code.SetLocal(_activationVar);
if (IsThisAddressed)
{
var ptr = DefineThisPtr();
GetActivation(code);
code.LoadThis();
code.SetSlot(ptr.Slot);
InitSlotPtr(code, ptr);
}
//store arguments in slots
int n = _method.Parameters.Count;
for (int i = 0; i < n; ++i)
{
var p = _method.Parameters[i];
var ptr = p.Data as VarPtr;
if (ptr == null)
{
continue;
}
GetActivation(code);
code.GetLocal(GetArgIndex(i));
code.SetSlot(ptr.Slot);
InitSlotPtr(code, ptr);
}
if (HasLocalVariables)
{
n = VarCount;
for (int i = 0; i < n; ++i)
{
var v = GetVar(i);
var ptr = v.Data as VarPtr;
if (ptr == null)
{
continue;
}
InitSlotPtr(code, ptr);
}
}
//NOTE: Because of VerifyError #1068
if (AbcGenConfig.UseActivationTraits && AbcGenConfig.UseFuncPointers)
{
code.PopScope(); //activation
code.PopScope(); //this
}
}