public override void Visit(SelectQueryNode node)
{
_symbolTable.SetCurrentNode(node);
checkCollectionFollowsCollection(node.Variable);
if (node.Parent != null)
{
AllType?collectionNameType = _symbolTable.RetrieveSymbol(node.Variable, out bool isCollectionInQuery, false);
if (isCollectionInQuery)
{
if (node.Parent is ExpressionNode expNode)
{
expNode.OverAllType = collectionNameType;
expNode.Name = node.Variable;
}
node.Type = collectionNameType.ToString();
node.Name = node.Variable;
}
else
{
_symbolTable.FromVarIsNotCollError(node.Variable);
}
if (node.WhereCondition != null)
{
node.WhereCondition.Accept(this);
}
}
}
public override void Visit(SelectQueryNode node)
{
SymbolTable.SetCurrentNode(node);
CheckDeclared(node.Variable);
if (node.WhereCondition != null)
{
(node.WhereCondition as WhereNode).AttributeClass = SymbolTable.RetrieveSymbol(node.Variable) ?? default(AllType);
node.WhereCondition.Accept(this);
}
}
public override void Visit(SelectQueryNode node)
{
ProgramCode.Append("SELECT ");
//ProgramCode.Append(node.Type);
ProgramCode.Append("FROM");
ProgramCode.Append(node.Variable);
if (node.WhereCondition != null)
{
node.WhereCondition.Accept(this);
}
ProgramCode.Append(";\n");
}
public override AbstractNode VisitSelect([NotNull] GiraphParser.SelectContext context)
{
SelectQueryNode SelectNode = new SelectQueryNode(context.Start.Line, context.Start.Column);
SelectNode.Type = getContextType(context.variable());
SelectNode.Variable = context.variable().GetText();
SelectNode.Name = SelectNode.Variable;
if (context.where () != null)
{
SelectNode.WhereCondition = Visit(context.where ());
}
return(SelectNode);
}
public abstract void Visit(SelectQueryNode node);
