public override object VisitSubquery([NotNull] KoraliumParser.SubqueryContext context)
{
string alias = null;
var aliasNode = context.table_alias();
if (aliasNode != null)
{
alias = aliasNode.GetText();
}
var selectStatement = Visit(context.select_statement()) as SelectStatement;
if (selectStatement == null)
{
throw new SqlParserException("Could not parse select statement");
}
return(new Subquery()
{
Alias = alias,
SelectStatement = selectStatement
});
}
/// <summary>
/// Exit a parse tree produced by <see cref="KoraliumParser.subquery"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitSubquery([NotNull] KoraliumParser.SubqueryContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="KoraliumParser.subquery"/>.
/// <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 VisitSubquery([NotNull] KoraliumParser.SubqueryContext context)
{
return(VisitChildren(context));
}
