/*

* Copyright (c) 2004-2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

using System;

using System.Text;

using System.Collections;

using SymBuildParsingLib.Token;

namespace SymBuildParsingLib.Lexer

{

	public class SymLexedTokens

	{

		#region Observer interface

		public delegate void TokenHandler( SymToken aNewToken );

		#endregion

		#region Events

		public event TokenHandler iTokenHandlers;

		#endregion

		#region Constructors & destructor

		public SymLexedTokens()

		{

		}

		#endregion

		#region API

		public void Enqueue( SymToken aToken )

		{

			iTokens.Enqueue( aToken );

			NotifyNewToken( aToken );

		}

		public SymToken Dequeue()

		{

			SymToken ret = (SymToken) iTokens.Dequeue();

			return ret;

		}

		#endregion

		#region Properties

		public int Count

		{

			get { return iTokens.Count; }

		}

		#endregion

		#region Internal methods

		private void NotifyNewToken( SymToken aToken )

		{

			if	( iTokenHandlers != null )

			{

				iTokenHandlers( aToken );

			}

		}

		#endregion

		#region Data members

		private Queue iTokens = new Queue( 250 );

		#endregion

	}

}