public object VisitCallExpr(Expr.Call expr)
{
var callee = Evaluate(expr.Callee);
var arguments = new List <object>();
foreach (var argument in expr.Arguments)
{
arguments.Add(Evaluate(argument));
}
if (!(callee is ILoxCallable))
{
throw new RuntimeError(expr.Paren, "Can only call functions and classes.");
}
var function = (ILoxCallable)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 object VisitCallExpr(Expr.Call expr)
{
Resolve(expr.Callee);
foreach (var argument in expr.Arguments)
{
Resolve(argument);
}
return(null);
}
public string VisitCallExpr(Expr.Call expr)
{
return(Parenthesize2("call", expr.Callee, expr.Arguments));
}