public Map(MapType type, IDictionary map)
{
if (type == null || map == null)
{
Console.WriteLine(new StackTrace(true));
throw new NullErr().val;
}
this.m_type = type;
this.m_map = map;
}
public Map(MapType type)
: this(type, new Hashtable())
{
}
/// <summary>
/// map := "[" mapPair ("," mapPair)* "]"
/// mapPair := obj ":" + obj
/// </summary>
private object readMap(MapType mapType, object firstKey)
{
// setup accumulator
Hashtable map = new Hashtable();
// finish first pair
consume(Token.COLON, "Expected ':'");
map[firstKey] = readObj(null, null, false);
// parse map pairs
while (curt != Token.RBRACKET)
{
consume(Token.COMMA, "Expected ','");
if (curt == Token.RBRACKET) break;
object key = readObj(null, null, false);
consume(Token.COLON, "Expected ':'");
object val = readObj(null, null, false);
map[key] = val;
}
consume(Token.RBRACKET, "Expected ']'");
// infer type if necessary
if (mapType == null)
{
int size = map.Count;
object[] keys = new object[map.Count];
object[] vals = new object[map.Count];
IDictionaryEnumerator en = map.GetEnumerator();
int i = 0;
while (en.MoveNext())
{
keys[i] = en.Key;
vals[i] = en.Value;
i++;
}
Type k = Type.common(keys, size);
Type v = Type.common(vals, size);
mapType = new MapType(k, v);
}
return new Map((MapType)mapType, map);
}
private Type readType(bool lbracket)
{
Type t = readSimpleType();
if (curt == Token.QUESTION)
{
consume();
t = t.toNullable();
}
if (curt == Token.COLON)
{
consume();
t = new MapType(t, readType());
}
while (curt == Token.LRBRACKET)
{
consume();
t = t.toListOf();
}
if (curt == Token.QUESTION)
{
consume();
t = t.toNullable();
}
return t;
}
public Map(MapType type) : this(type, new Hashtable())
{
}