public object visitCallExpr(Expr.Call expr)
{
object callee = Evaluate(expr.callee);
List <object> args = expr.args.ConvertAll(Evaluate);
if (callee is LoxCallable function)
{
if (args.Count != function.Arity())
{
throw new RuntimeError(expr.paren, "Expected " + function.Arity() + " arguments but got " + args.Count + ".");
}
return(function.Call(this, args));
}
else
{
throw new RuntimeError(expr.paren, "Can only call functions and classes.");
}
}
public object visitCallExpr(Expr.Call expr)
{
Resolve(expr.callee);
expr.args.ForEach(Resolve);
return(null);
}
public string visitCallExpr(Expr.Call expr)
{
return(parenthesize("CALL " + expr.callee.ToString(), expr.args.ToArray()));
}
