/// <summary>
/// Enables MAP and FOREACH to be applied to AssocArrayItem.
///
/// When mapping a word over an AssocArrayItem, the MAP word
/// will call Items, push each item onto the stack, and then
/// execute the mapping word. The items for an AssocArrayItem
/// will be RecordItems with fields "key" and "value" corresponding
/// to each record.
/// </summary>
public List <RecordItem> Items()
{
List <RecordItem> result = new List <RecordItem>();
foreach (KeyValuePair <string, StackItem> entry in this.values)
{
RecordItem rec = new RecordItem();
rec.SetValue("key", new StringItem(entry.Key));
rec.SetValue("value", entry.Value);
result.Add(rec);
}
return(result);
}
// ( values fields -- record )
public override void Execute(Interpreter interp)
{
ArrayItem fields = (ArrayItem)interp.StackPop();
ArrayItem values = (ArrayItem)interp.StackPop();
RecordItem result = new RecordItem();
for (int i = 0; i < fields.ArrayValue.Count; i++)
{
StringItem keyItem = (StringItem)fields.ArrayValue[i];
result.SetValue(keyItem.StringValue, values.ArrayValue[i]);
}
interp.StackPush(result);
}