public override object VisitFunction_call([NotNull] KoraliumParser.Function_callContext context)
{
var parameterNodes = context.function_parameter();
var functionNameNode = context.function_name();
if (functionNameNode != null)
{
FunctionCall functionCall = new FunctionCall()
{
FunctionName = functionNameNode.GetText().ToLower()
};
if (context.STAR() != null)
{
functionCall.Wildcard = true;
}
foreach (var functionParameterExpression in parameterNodes)
{
var result = Visit(functionParameterExpression);
if (result is SqlExpression sqlExpression)
{
functionCall.Parameters.Add(sqlExpression);
}
else
{
throw new SqlParserException("Could not parse sql expression");
}
}
return(functionCall);
}
throw new SqlParserException("Empty function name");
}
/// <summary>
/// Exit a parse tree produced by <see cref="KoraliumParser.function_call"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitFunction_call([NotNull] KoraliumParser.Function_callContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="KoraliumParser.function_call"/>.
/// <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 VisitFunction_call([NotNull] KoraliumParser.Function_callContext context)
{
return(VisitChildren(context));
}
