private string ExecuteFunction(TagModel model, DefineFunctionTag.FunctionDefinition function)
{
var callArguments = new Dictionary <string, object>();
var freeFields = FreeFields(model);
foreach (var argumentWithDefault in function.Arguments)
{
var argument = argumentWithDefault;
var defaultPath = null as string;
if (argumentWithDefault.Contains("(") && argumentWithDefault.EndsWith(")"))
{
var split = argumentWithDefault.IndexOf("(", StringComparison.InvariantCulture);
argument = argumentWithDefault.Substring(0, split);
defaultPath = argumentWithDefault.Substring(split + 1, argumentWithDefault.Length - split - 2);
// Console.WriteLine(defaultPath);
}
var value = CollectionUtils.SafeGet(freeFields, argument) ?? CollectionUtils.SafeGet(freeFields, LanguageHelper.CamelCaseProperty(argument));
if (!string.IsNullOrEmpty(defaultPath) && value == null)
{
value = model.TryGet(defaultPath);
}
if (function.IsStrict && value == null)
{
throw MacroException.NullNotAllowed(argument).Decorate(Name.Context);
}
callArguments[argument] = value;
// model.Tag[argument] = value;
}
model.PushTagStack();
foreach (var argument in callArguments)
{
model.Tag[argument.Key] = argument.Value;
}
var result = function.Evaluate(model);
model.PopTagStack();
return(TypeConverter.To <string>(result));
}