public object VisitCallExpr(Expr.Call expr)
{
object callee = Evaluate(expr.Callee);
List <object> arguments = new List <object>();
foreach (var argument in expr.Arguments)
{
arguments.Add(Evaluate(argument));
}
if (!(callee is ICallable))
{
throw new RuntimeError(expr.Paren, "Can only call functions and classes.");
}
ICallable function = (ICallable)callee;
if (arguments.Count != function.Arity())
{
throw new RuntimeError(expr.Paren, $"Expected {function.Arity()} arguments but got {arguments.Count}.");
}
return(function.Call(this, arguments));
}
public Nothing VisitCallExpr(Expr.Call expr)
{
Resolve(expr.Callee);
foreach (var arg in expr.Arguments)
{
Resolve(arg);
}
return(Nothing.AtAll);
}
public string VisitCallExpr(Expr.Call expr)
{
throw new System.NotImplementedException();
}