using System;

namespace AspClassic.Parser;

/// <summary>
/// A comment token.
/// </summary>
public sealed class CommentToken : Token
{
	private readonly bool _IsREM;

	private readonly string _Comment;

	/// <summary>
	/// Whether the comment was preceded by REM.
	/// </summary>
	public bool IsREM => _IsREM;

	/// <summary>
	/// The text of the comment.
	/// </summary>
	public string Comment => _Comment;

	/// <summary>
	/// Constructs a new comment token.
	/// </summary>
	/// <param name="comment">The comment value.</param>
	/// <param name="isREM">Whether the comment was preceded by REM.</param>
	/// <param name="span">The location of the comment.</param>
	public CommentToken(string comment, bool isREM, Span span)
		: base(TokenType.Comment, span)
	{
		if (comment == null)
		{
			throw new ArgumentNullException("comment");
		}
		_IsREM = isREM;
		_Comment = comment;
	}
}