public override IQueryElement VisitClause([NotNull] QueryGrammarParser.ClauseContext context)
{
IQueryElement operation = Visit(context.where_operation());
if (context.and_or_clause() != null)
{
IQueryElement clasule = Visit(context.and_or_clause().clause());
IQueryCompositeElement operatorElement = GetLogicalElement(context.and_or_clause()).GetComposite();
operatorElement.Add(operation);
operatorElement.Add(clasule);
return(operatorElement);
}
return(operation);
}
public override IQueryElement VisitGet_stmt([NotNull] QueryGrammarParser.Get_stmtContext context)
{
if (context.K_DEREF() != null)
{
Deref deref = new Deref();
IQueryElement parentSelect = Visit(context.get_stmt());
deref.Add(parentSelect);
return(deref);
}
if (context.aggregate_function() != null)
{
IQueryCompositeElement aggregate = Visit(context.aggregate_function()).GetComposite();
IQueryElement parentSelect = Visit(context.get_stmt());
aggregate.Add(parentSelect);
return(aggregate);
}
if (context.get_stmt() != null)
{
IQueryCompositeElement parentSelect = Visit(context.get_stmt()).GetComposite();
if (context.child_value() != null)
{
IQueryElement property = Visit(context.child_value());
parentSelect.Add(property);
}
return(parentSelect);
}
SelectStatement select = new SelectStatement();
IQueryElement className = Visit(context.get_header().class_name());
select.Add(className);
if (context.where_clause() != null)
{
IQueryElement where = Visit(context.where_clause());
select.Add(where);
}
return(select);
}