public Variable atIndexList(DynamicList index_list)
{
// copy itself
Variable sub_element = new DynamicList(getValue());
foreach (Integer index in index_list.getValue())
{
// get next element
sub_element = (sub_element as DynamicList).atIndex(index);
}
// return final result
return(sub_element);
}
/// <summary>
/// Get the value at the index in a list
/// </summary>
/// <param name="list_expr"> The list</param>
/// <param name="index_list_expr"> The index</param>
/// <returns></returns>
private static Variable listAtFunction(Expression list_expr, Expression index_list_expr)
{
// extract list
Variable list_var = list_expr.evaluate();
Debugging.assert(list_var is DynamicList); // TypeError
DynamicList list = list_var as DynamicList;
// extract index
Variable index_list_var = index_list_expr.evaluate();
Debugging.assert(index_list_var is DynamicList); // TypeError
DynamicList index_list = index_list_var as DynamicList;
/*// test run ?
* if (Global.getSetting("test mode"))
* {
* // function to add to index dict
* void addToIndexList(string var_name)
* {
* if (var_name == "") return;
* var index_var_name_list = (List<string>) Global.test_values["index values"];
* // variable name already in index dict ?
* if (index_var_name_list.Contains(var_name)) return;
* // add to index dict
* index_var_name_list.Add(var_name);
* }
* }*/
// access at index
Variable result = list.atIndexList(index_list);
// trace list
if (!list_var.isTraced())
{
return(result);
}
Tracer.printTrace("list_at last event: " + list_var.tracer.peekEvent());
handleValueFunctionTracing("list_at", list,
new dynamic[] { index_list.getValue() });
// trace index
//Tracer.printTrace("tmp list at ", index_list.toString());
/*var index_list_var_value = index_list_var.getValue();
* for (int i = 0; i < index_list_var_value.Count; i++)
* {
* Variable index_var = index_list_var_value[i];
* var numeric_index = (NumericalValue) index_var;
* NumericalValue source = numeric_index.getTracedSource();
* if (source == null)
* {
* Tracer.printTrace("tmp index without source var");
* numeric_index.setName($"comp /{i}/");
* list.tracer.update(new Event(new Alteration("tmp_list_at", numeric_index,
* numeric_index.getValue(), new[] {list.getName(), index_list.getValue()},
* mode:"index")));
* continue;
* }
*
* Tracer.printTrace("Traced source var: " + source.getName());
* numeric_index.setName($"comp /{i}/");
* list.tracer.update(new Event(new Alteration("tmp_list_at", numeric_index,
* numeric_index.getValue(), new[] {list.getName(), index_list.getValue()},
* mode:"index")));
* }*/
return(result);
}