public override object VisitFrom_clause([NotNull] KoraliumParser.From_clauseContext context)
{
var tableNameNode = context.table_name();
string tableAlias = null;
var tableAliasNode = context.table_alias();
if (tableAliasNode != null)
{
tableAlias = tableAliasNode.GetText().Trim('"');
}
if (tableNameNode != null)
{
return(new FromClause()
{
TableReference = new FromTableReference()
{
TableName = tableNameNode.GetText().Trim('"'),
Alias = tableAlias
}
});
}
var subqueryNode = context.subquery();
if (subqueryNode != null)
{
var subquery = Visit(subqueryNode) as Subquery;
return(new FromClause()
{
TableReference = subquery
});
}
throw new NotImplementedException();
}
/// <summary>
/// Exit a parse tree produced by <see cref="KoraliumParser.from_clause"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitFrom_clause([NotNull] KoraliumParser.From_clauseContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="KoraliumParser.from_clause"/>.
/// <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 VisitFrom_clause([NotNull] KoraliumParser.From_clauseContext context)
{
return(VisitChildren(context));
}
