public override void VisitProtect(ProtectStatement protect)
{
exceptionLevel++;
ilGenerator.BeginExceptionBlock();
protect.StatementList.Accept(this);
foreach (ProtectWhen when in protect.WhenPartList) {
ilGenerator.BeginCatchBlock(when.TypeSpecifier.RawType);
LocalBuilder prevException = currentException;
currentException =
ilGenerator.DeclareLocal(when.TypeSpecifier.RawType);
ilGenerator.Emit(OpCodes.Stloc, currentException);
when.ThenPart.Accept(this);
currentException = prevException;
}
if (protect.ElsePart != null) {
ilGenerator.BeginCatchBlock(typeof(Exception));
LocalBuilder prevException = currentException;
currentException =
ilGenerator.DeclareLocal(typeof(Exception));
ilGenerator.Emit(OpCodes.Stloc, currentException);
protect.ElsePart.Accept(this);
currentException = prevException;
}
ilGenerator.EndExceptionBlock();
exceptionLevel--;
}
public override void VisitProtect(ProtectStatement protect)
{
protect.StatementList.Accept(this);
foreach (ProtectWhen when in protect.WhenPartList) {
when.TypeSpecifier.Accept(this);
TypeData prevExceptionType = currentExceptionType;
currentExceptionType = when.TypeSpecifier.NodeType;
when.ThenPart.Accept(this);
currentExceptionType = prevExceptionType;
}
if (protect.ElsePart != null) {
TypeData prevExceptionType = currentExceptionType;
currentExceptionType =
typeManager.GetTypeData(typeof(Exception));
protect.ElsePart.Accept(this);
currentExceptionType = prevExceptionType;
}
if (protect.WhenPartList.Length == 0 &&
protect.ElsePart == null) {
report.Error(protect.Location,
"`protect' statements must have `when' or `else'");
}
}
public virtual void VisitProtect(ProtectStatement protect)
{
}