private LiquidExpressionResult DoLookup(ITemplateContext ctx, LiquidHash liquidHash, ILiquidValue indexProperty)
{
String propertyNameString = ValueCaster.RenderAsString(indexProperty);
if (propertyNameString.ToLower().Equals("size"))
{
return(LiquidExpressionResult.Success(LiquidNumeric.Create(liquidHash.Keys.Count)));
}
var valueAt = liquidHash.ValueAt(indexProperty.Value.ToString());
if (valueAt.HasValue)
{
return(LiquidExpressionResult.Success(valueAt));
}
else
{
return(LiquidExpressionResult.ErrorOrNone(ctx, indexProperty.ToString()));
}
}
private static LiquidExpressionResult Convert <TDest>(LiquidHash liquidHash)
where TDest : ILiquidValue
{
var destType = typeof(TDest);
// So, according to https://github.com/Shopify/liquid/wiki/Liquid-for-Designers, a hash value will be iterated
// as an array with two indices.
if (destType == typeof(LiquidCollection))
{
var newArray = new LiquidCollection();
var dictarray = liquidHash.Keys.Select(
k => (Option <ILiquidValue>) new Some <ILiquidValue>(new LiquidCollection {
LiquidString.Create(k),
liquidHash[k]
})).ToList();
foreach (var item in dictarray)
{
newArray.Add(item);
}
return(LiquidExpressionResult.Success(newArray));
}
// TODO: Should this return the default value for whatever TDest is requested?
return(LiquidExpressionResult.Error("Can't convert from a LiquidHash to " + destType));
}
private static bool CheckIsEmpty(LiquidHash val)
{
return(!val.Any());
}
private static bool CheckIsBlank(LiquidHash val)
{
return(!val.Any());
}