static void Main(string[] args)
{
Interpreter interpret = new Interpreter();
//check(ref interpret, "7 + (((3 + 2)))", 2);
//Console.WriteLine("interpret.Expr");
//Console.WriteLine(interpret.Expr);
Num num = new Num(new Token("INTEGER", "0123"));
BinOp binOp = new BinOp(new Token("integer", "0123"), new Token("PLUS", "+"), new Token("INTEGER", "4567"));
Console.WriteLine(num);
Console.WriteLine(binOp);
//Console.WriteLine(interpret.Tokens);
//Console.WriteLine(interpret.Tokens);
//Console.WriteLine(interpret.Tokens);
//
//Console.WriteLine(">>" + interpret.Tokens);
//Console.WriteLine(">>" + interpret.Tokens);
//Console.WriteLine(">>" + interpret.Tokens);
//Console.WriteLine(">>" + interpret.Tokens);
//Console.WriteLine(">>" + interpret.Tokens);
//Console.WriteLine(">>" + interpret.Tokens);
//Console.WriteLine(">>" + interpret.Tokens);
//Console.WriteLine(">>" + interpret.Tokens);
//Token t = new Token("djdjdjd", "dddddd");
//Console.WriteLine(t);
}
public int visit(AST node)
{
if (node.GetType().Name == "BinOp")
{
BinOp d = node as BinOp;
if (d != null)
{
if (d.Op.Type.Equals("PLUS"))
{
return(this.visit(d.Left) + this.visit(d.Right));
}
else if (d.Op.Type.Equals("MINUS"))
{
return(this.visit(d.Left) - this.visit(d.Right));
}
else if (d.Op.Type.Equals("MUL"))
{
return(this.visit(d.Left) * this.visit(d.Right));
}
else if (d.Op.Type.Equals("DIV"))
{
return(this.visit(d.Left) / this.visit(d.Right));
}
}
}
else if (node.GetType().Name == "Num")
{
Num d = node as Num;
if (d != null)
{
return(Convert.ToInt32(d.Value));
}
}
else if (node.GetType().Name == "Assign")
{
Assign d = node as Assign;
if (d != null)
{
dict.Add(d.Left.Value, d.Right);
}
}
else if (node.GetType().Name == "Var")
{
Var d = node as Var;
if (d != null)
{
return(15);
}
}
return(0);
}