/// <summary>
/// Ctor.
/// </summary>
/// <param name="selectExpression">the expression node to evaluate for matching events</param>
/// <param name="optionalAsName">the name of the item, null if not name supplied</param>
/// <param name="isEvents">whether event selected</param>
public SelectClauseExprRawSpec(
ExprNode selectExpression,
string optionalAsName,
bool isEvents)
{
SelectExpression = selectExpression;
OptionalAsName = optionalAsName == null ? null : StringValue.RemoveTicks(optionalAsName);
IsEvents = isEvents;
}
private static Chainable GetChainable(
EsperEPL2GrammarParser.ChainableWithArgsContext ctx,
bool optional,
IDictionary <ITree, ExprNode> astExprNodeMap)
{
var distinct = ctx.libFunctionArgs() != null && ctx.libFunctionArgs().DISTINCT() != null;
var nameUnescaped = ctx.chainableIdent().GetText();
var name = StringValue.RemoveTicks(nameUnescaped);
if (ctx.lp == null)
{
return(new ChainableName(distinct, optional, name, nameUnescaped));
}
IList <ExprNode> @params = ASTLambdaHelper.GetExprNodesLibFunc(ctx.libFunctionArgs(), astExprNodeMap);
return(new ChainableCall(distinct, optional, name, nameUnescaped, @params));
}