using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;

namespace Unity.VisualScripting
{
    public abstract class NonNullableCollection<T> : Collection<T>
    {
        protected override void InsertItem(int index, T item)
        {
            if (item == null)
            {
                throw new ArgumentNullException(nameof(item));
            }

            base.InsertItem(index, item);
        }

        protected override void SetItem(int index, T item)
        {
            if (item == null)
            {
                throw new ArgumentNullException(nameof(item));
            }

            base.SetItem(index, item);
        }

        public void AddRange(IEnumerable<T> collection)
        {
            foreach (var item in collection)
            {
                Add(item);
            }
        }
    }
}