using System;
using System.Collections.Generic;

namespace AspClassic.Parser;

/// <summary>
/// A read-only collection of statements.
/// </summary>
public sealed class StatementCollection : ColonDelimitedTreeCollection<Statement>
{
	/// <summary>
	/// Constructs a new collection of statements.
	/// </summary>
	/// <param name="statements">The statements in the collection.</param>
	/// <param name="colonLocations">The locations of the colons in the collection.</param>
	/// <param name="span">The location of the parse tree.</param>
	public StatementCollection(IList<Statement> statements, IList<Location> colonLocations, Span span)
		: base(TreeType.StatementCollection, statements, colonLocations, span)
	{
		if ((statements == null || statements.Count == 0) && (colonLocations == null || colonLocations.Count == 0))
		{
			throw new ArgumentException("StatementCollection cannot be empty.");
		}
	}
}