public bool get(Token t)
{
//dump("Searching " + t.ToString());
for (Env e = this; e != null; e = e.prev)
{
if (e.table.Contains(t))
return (bool)e.table[t];
}
dump("Error: bind for " + t.ToString() + " not found");
throw new BindNotFoundException("Error: bind for " + t.ToString() + " not found");
}
public Parser(Tokenizer tokenizer)
{
this.tokenizer = tokenizer;
currToken = this.tokenizer.nextToken();
}
Token match(TokenType type)
{
Token tmp = currToken;
if (currToken.Type == type)
currToken = tokenizer.nextToken();
else
Error("Error: excepted " + type.ToString() + ", read " + (currToken.Type).ToString() + ".");
return tmp;
}
public IdeNode(Token t, Env e)
: base(t, e)
{
}
public AndNode(Token t)
: base(t)
{
nodes = new List<Node>();
}
public Node(Token t, Env e = null)
{
this.token = t;
this.env = e;
}
public LetNode(Token t, IdeNode ide, Node definition, Node body, Env e)
: base(t, e)
{
this.ide = ide;
this.definition = definition;
this.body = body;
}
public void Put(Token t, bool b)
{
table.Add(t, b);
//dump("Adding " + t.ToString());
}
