public static IList<Pair<ExprNode, ExprNode>> FindExpression(
ExprNode selectExpression,
ExprNode searchExpression)
{
IList<Pair<ExprNode, ExprNode>> pairs = new List<Pair<ExprNode, ExprNode>>();
if (ExprNodeUtilityCompare.DeepEquals(selectExpression, searchExpression, false)) {
pairs.Add(new Pair<ExprNode, ExprNode>(null, selectExpression));
return pairs;
}
FindExpressionChildRecursive(selectExpression, searchExpression, pairs);
return pairs;
}
private static void FindExpressionChildRecursive(
ExprNode parent,
ExprNode searchExpression,
IList<Pair<ExprNode, ExprNode>> pairs)
{
foreach (var child in parent.ChildNodes) {
if (ExprNodeUtilityCompare.DeepEquals(child, searchExpression, false)) {
pairs.Add(new Pair<ExprNode, ExprNode>(parent, child));
continue;
}
FindExpressionChildRecursive(child, searchExpression, pairs);
}
}
public override bool Equals(object o)
{
if (this == o) {
return true;
}
if (o == null || GetType() != o.GetType()) {
return false;
}
var that = (ExprChainedSpec) o;
if (Name != null ? !Name.Equals(that.Name) : that.Name != null) {
return false;
}
return ExprNodeUtilityCompare.DeepEquals(Parameters, that.Parameters);
}
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 (ExprNodeUtilityCompare.DeepEquals(expression.Originator, exprItem.Originator, false)) {
return true;
}
}
return false;
}