using System;
using System.Collections.Generic;
namespace sharp.parser
{
	public class TokenQueue : Queue<Token>
	{
		public TokenQueue()
		{
		}

		public Token Expect(params TokenDefinition[] tdefs)
		{
			Token t = Dequeue();
			foreach (TokenDefinition tdef in tdefs){
				if (t.Definition == tdef)
				{
					return t;
				}
			}
			throw new UnexpectedTokenException(t, tdefs);
		}

	}
}