protected override string VisitFunctionCall(CallExpression exp, out object resultObj)
{
Depth++;
var function = exp.Name;
var paramBuilder = new StringBuilder();
var iParam = 0;
var donutFn = _functionDict.GetFunction(function);
donutFn.Parameters = exp.Parameters;
string result;
var aggStage = _aggTree.AddFunction(donutFn);
if (donutFn is IDonutTemplateFunction <string> fnTemplate)
{
FeatureFunctions.Enqueue(donutFn);
var codeContext = new DonutCodeContext(_script);
result = fnTemplate.GetTemplate(exp, codeContext);
donutFn.Content = new DonutFeatureDefinition(result);
resultObj = donutFn;
}
else if (donutFn.IsAggregate)
{
string aggregateResult = donutFn.GetValue();
if (aggregateResult == null)
{
resultObj = null;
return("");
}
donutFn.Content = new DonutFeatureDefinition(aggregateResult = aggStage.GetValue());//FillCallParameters(donutFn, exp.Parameters);
resultObj = donutFn;
Aggregates.Enqueue(donutFn);
result = aggregateResult;
}
else
{
FeatureFunctions.Enqueue(donutFn);
foreach (var parameter in exp.Parameters)
{
var paramStr = Visit(parameter as IExpression);
paramBuilder.Append(paramStr);
if (iParam < exp.Parameters.Count - 1)
{
paramBuilder.Append(", ");
}
iParam++;
}
result = $"{donutFn}({paramBuilder})";
resultObj = donutFn;
}
Depth--;
return(result);
}
protected override string VisitFunctionCall(CallExpression exp, out object resultObj)
{
Depth++;
resultObj = null;
var function = exp.Name;
var paramBuilder = new StringBuilder();
var iParam = 0;
var donutFn = _functionDict.GetFunction(function);
donutFn.Parameters = exp.Parameters;
//string result;
//var aggStage = _aggTree.AddFunction(donutFn);
if (donutFn is IDonutTemplateFunction <DonutCodeFeatureDefinition> fnTemplate)
{
FeatureFunctions.Enqueue(donutFn);
var codeContext = new DonutCodeContext(_script);
var donutFeatureDefinition = fnTemplate.GetTemplate(exp, codeContext);
if (donutFeatureDefinition == DonutCodeFeatureDefinition.Empty)
{
return(null);
}
//result = donutFeatureDefinition.ToString();
donutFn.Content = donutFeatureDefinition;
resultObj = donutFn;
}
else
{
FeatureFunctions.Enqueue(donutFn);
foreach (var parameter in exp.Parameters)
{
var paramStr = Visit(parameter as IExpression);
paramBuilder.Append(paramStr);
if (iParam < exp.Parameters.Count - 1)
{
paramBuilder.Append(", ");
}
iParam++;
}
//result = $"{donutFn}({paramBuilder})";
resultObj = donutFn;
}
Depth--;
return("");
}
