#define DEBUG
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;

namespace AspClassic.Parser;

/// <summary>
/// A collection of trees that are delimited by commas.
/// </summary>
public abstract class CommaDelimitedTreeCollection<T> : TreeCollection<T> where T : Tree
{
	private readonly ReadOnlyCollection<Location> _CommaLocations;

	/// <summary>
	/// The location of the commas in the list.
	/// </summary>
	public ReadOnlyCollection<Location> CommaLocations => _CommaLocations;

	protected CommaDelimitedTreeCollection(TreeType type, IList<T> trees, IList<Location> commaLocations, Span span)
		: base(type, trees, span)
	{
		Debug.Assert(type >= TreeType.ArgumentCollection && type <= TreeType.ImportCollection);
		if (commaLocations != null && commaLocations.Count > 0)
		{
			_CommaLocations = new ReadOnlyCollection<Location>(commaLocations);
		}
	}
}