private bool FindItem(ExprNodePropOrStreamDesc item)
{
if (item is ExprNodePropOrStreamPropDesc)
{
return(_properties != null && _properties.Contains(item));
}
if (_expressions == null)
{
return(false);
}
var exprItem = (ExprNodePropOrStreamExprDesc)item;
foreach (ExprNodePropOrStreamExprDesc expression in _expressions)
{
if (expression.StreamNum != exprItem.StreamNum)
{
continue;
}
if (ExprNodeUtility.DeepEquals(expression.Originator, exprItem.Originator))
{
return(true);
}
}
return(false);
}
public void Add(ExprNodePropOrStreamDesc desc)
{
if (desc is ExprNodePropOrStreamPropDesc) {
AllocateProperties();
_properties.Add((ExprNodePropOrStreamPropDesc) desc);
}
else if (desc is ExprNodePropOrStreamExprDesc) {
AllocateExpressions();
_expressions.Add((ExprNodePropOrStreamExprDesc) desc);
}
}
