private LiquidExpressionResult EvalExpression(
ITemplateContext templateContext,
VariableReferenceTree o,
IEnumerable <Option <ILiquidValue> > childresults)
{
var childResultsList = childresults as IList <Option <ILiquidValue> > ?? childresults.ToList();
var valueResult = o.Value.Eval(templateContext, childResultsList);
if (valueResult.IsError)
{
return(valueResult);
}
LiquidExpressionResult indexResult;
if (o.IndexExpression != null)
{
indexResult = o.IndexExpression.Eval(templateContext, childResultsList);
if (indexResult.IsError)
{
return(indexResult);
}
}
else
{
return(valueResult);
}
if (!valueResult.SuccessResult.HasValue)
{
return(LiquidExpressionResult.Success(new None <ILiquidValue>()));
//return LiquidExpressionResult.Error(SymbolTable.NotFoundError(valueResult));
}
if (!indexResult.SuccessResult.HasValue)
{
return(LiquidExpressionResult.Success(new None <ILiquidValue>()));
//return LiquidExpressionResult.Error("ERROR: the index for "+valueResult.SuccessResult.Value+" has no value");
}
return(new IndexDereferencer().Lookup(templateContext, valueResult.SuccessResult.Value, indexResult.SuccessResult.Value));
}
// private LiquidExpressionResult EvalExpression(
// ITemplateContext templateContext,
// IExpressionDescription o,
// IEnumerable<Option<IExpressionConstant>> childresults)
// {
// return o.Eval(templateContext, childresults);
// }
private LiquidExpressionResult EvalExpression(
ITemplateContext templateContext,
VariableReferenceTree o,
IEnumerable<Option<IExpressionConstant>> childresults)
{
var childResultsList = childresults as IList<Option<IExpressionConstant>> ?? childresults.ToList();
var valueResult = o.Value.Eval(templateContext, childResultsList);
if (valueResult.IsError)
{
return valueResult;
}
LiquidExpressionResult indexResult;
if (o.IndexExpression != null)
{
indexResult = o.IndexExpression.Eval(templateContext, childResultsList);
if (indexResult.IsError)
{
return indexResult;
}
}
else
{
return valueResult;
}
if (!valueResult.SuccessResult.HasValue)
{
return LiquidExpressionResult.Success(new None<IExpressionConstant>());
//return LiquidExpressionResult.Error("ERROR: there is no value");
}
if (!indexResult.SuccessResult.HasValue)
{
return LiquidExpressionResult.Success(new None<IExpressionConstant>());
//return LiquidExpressionResult.Error("ERROR: the index for "+valueResult.SuccessResult.Value+" has no value");
}
return new IndexDereferencer().Lookup(templateContext, valueResult.SuccessResult.Value, indexResult.SuccessResult.Value);
}
private static String AsString(VariableReferenceTree tree)
{
var result = Print(tree.Value);
if (tree.IndexExpression != null)
{
result += "[" + Print(tree.IndexExpression) + "]";
}
return result;
}
