public object Visit(Ternary expr)
{
Resolve(expr.cond);
Resolve(expr.left);
Resolve(expr.right);
return(null);
}
public object Visit(Ternary expr)
{
object cond = Evaluate(expr.cond);
if (CheckIsTruthy(cond))
{
return(Evaluate(expr.left));
}
else
{
return(Evaluate(expr.right));
}
}
Expr TernaryRule()
{
Expr expr = OrRule();
//handle ternary operator
if (Match(QUESTION))
{
Expr left = ExpressionRule();
Consume(COLON, "Expected ':' in ternary operator");
Expr right = ExpressionRule();
expr = new Ternary(expr, left, right);
}
return(expr);
}