public override CodeNode VisitSkipAssignmentIfFlagSet(SkipAssignmentIfFlagSetNode node)
{
_Writer.WriteStartElement("SkipAssignmentIfFlagSet");
_Writer.WriteAttributeString("FlagFieldIndex", node.FlagFieldIndex.ToString());
_Writer.WriteAttributeString("FlagMask", string.Format("0x{0:x}", node.FlagMask));
_Writer.WriteEndElement();
return(node);
}
public override CodeNode VisitSkipAssignmentIfFlagSet(SkipAssignmentIfFlagSetNode node)
{
if (!_InFieldAssignment)
{
throw new InvalidOperationException("SkipAssignmentIfFlagSetNode must be in a FieldAssignmentNode");
}
//get the flag field
LocalBuilder flag = _FieldLocals[node.FlagFieldIndex];
//TODO: assert that it's a byte?
ILGen.Ldloc(flag);
ILGen.Ldc_I4_S(node.FlagMask);
ILGen.And();
//skip assignment if the flag is set
ILGen.Brtrue(_SkipAssignmentLabel);
return(node);
}
public virtual CodeNode VisitSkipAssignmentIfFlagSet(SkipAssignmentIfFlagSetNode node)
{
return(node);
}