public override void Visit(ExtractMaxQueryNode node)
{
SymbolTable.SetCurrentNode(node);
CheckDeclared(node.Variable);
if (node.WhereCondition != null)
{
var type = SymbolTable.RetrieveSymbol(node.Variable);
(node.WhereCondition as WhereNode).AttributeClass = type ?? default(AllType);
node.WhereCondition.Accept(this);
}
}
public override void Visit(ExtractMaxQueryNode node)
{
Debug.Print("ExtractMaxQueryNode");
ProgramCode.Append("EXTRACTMAX ");
if (node.Attribute != null)
{
ProgramCode.Append($"{node.Attribute} ");
}
ProgramCode.Append($"FROM {node.Variable}");
if (node.WhereCondition != null)
{
node.WhereCondition.Accept(this);
}
ProgramCode.Append(");\n");
}
public override AbstractNode VisitExtractMaxOP([NotNull] GiraphParser.ExtractMaxOPContext context)
{
ExtractMaxQueryNode ExtractQuery = new ExtractMaxQueryNode(context.Start.Line, context.Start.Column);
ExtractQuery.Variable = context.variable().GetText();
ExtractQuery.Name = ExtractQuery.Variable;
if (context.attribute() != null)
{
ExtractQuery.Attribute = context.attribute().GetText();
}
if (context.where () != null)
{
ExtractQuery.WhereCondition = Visit(context.where ());
}
return(ExtractQuery);
}
public override void Visit(ExtractMaxQueryNode node)
{
_symbolTable.SetCurrentNode(node);
checkCollectionFollowsCollection(node.Variable);
AllType?collectionNameType = _symbolTable.RetrieveSymbol(node.Variable, out bool isCollectionInQuery, false);
if (isCollectionInQuery)
{
node.Type = collectionNameType.ToString().ToLower();
if (!_symbolTable.IsClass(node.Type_enum) && node.Attribute != null && node.Attribute != "")
{
_symbolTable.AttributeUsedOnNonClass();
}
}
else
{
_symbolTable.NotCollection(node.Variable);
}
if (node.WhereCondition != null)
{
node.WhereCondition.Accept(this);
}
}
public abstract void Visit(ExtractMaxQueryNode node);
