public void Visit(ExprAddNode node)
{
foreach (var subnode in node)
{
Visit((dynamic)subnode);
}
}
public Node ExprAdd()
{
var node1 = ExprMul();
while (CurrentToken == TokenCategory.PLUS || CurrentToken == TokenCategory.NEG)
{
var node2 = new ExprAddNode();
if (CurrentToken == TokenCategory.NEG)
{
node2.AnchorToken = Expect(TokenCategory.NEG);
}
else
{
node2.AnchorToken = Expect(TokenCategory.PLUS);
}
node2.Add(node1);
node2.Add(ExprMul());
node1 = node2;
}
return(node1);
}