public override object VisitGroupby_element([NotNull] KoraliumParser.Groupby_elementContext context)
{
//Scalar expression
var scalar = context.scalar_expression();
if (scalar != null)
{
var scalarExpression = Visit(context.scalar_expression()) as ScalarExpression;
if (scalarExpression == null)
{
throw new SqlParserException("Could not parse scalar expression");
}
return(new ExpressionGroup()
{
Expression = scalarExpression
});
}
//SUB QUERY
var subqueryNode = context.group_subquery();
if (subqueryNode != null)
{
var subquery = Visit(subqueryNode) as Group;
if (subquery == null)
{
throw new SqlParserException("Could not parse group by sub query");
}
return(subquery);
}
throw new NotImplementedException();
}
/// <summary>
/// Exit a parse tree produced by <see cref="KoraliumParser.groupby_element"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitGroupby_element([NotNull] KoraliumParser.Groupby_elementContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="KoraliumParser.groupby_element"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitGroupby_element([NotNull] KoraliumParser.Groupby_elementContext context)
{
return(VisitChildren(context));
}
